Equibles

6-K

KB Financial Group Inc. (KB)

6-K 2025-11-14 For: 2025-11-14
View Original
Added on April 09, 2026
Table of Contents

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 6-K

REPORT OF FOREIGN PRIVATE ISSUER

PURSUANT TO RULE 13a-16 OR 15d-16 UNDER

THE SECURITIES EXCHANGE ACT OF 1934

For the month of November 2025

Commission File Number: 000-53445

KB Financial Group Inc.

(Translation of registrant’s name into English)

26, Gukjegeumyung-ro 8-gil,Yeongdeungpo-gu, Seoul 07331, Korea

(Address of principal executive office)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

Form 20-F ☒    Form 40-F ☐

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Index

1. Summary of the 2025 Third Quarter Business Report

2. Exhibit 99.1 KB Financial Group Review Report for the Third Quarter of 2025 (Consolidated)

3. Exhibit 99.2 KB Financial Group Review Report for the Third Quarter of 2025 (Separate)

Table of Contents

TABLE OF CONTENTS

1. Introduction to the Company
1.1. Business Purpose
1.2. History
1.3. Overview of the Business Group
1.4. Capital Structure
1.5. Dividends
1.6. Amendments to the Articles of Incorporation
2. Business
2.1. Results of Operations
2.2. Sources and Uses of Funds
2.3. Other Information to Consider in Making an Investment Decision
3. Financial Information
3.1. Consolidated Financial Information
3.2. Separate Financial Information
3.3. Other Selected Financial Data
3.4. Other Financial Information
4. Independent Public Accountants
4.1. Audit/ Review Services
4.2. Public Company Accounting Oversight Board (“PCAOB”) Audit Services
4.3. Change in Auditor
5. Corporate Governance and Affiliated Companies
5.1. Board of Directors & Committees under the Board
5.2. Audit Committee
5.3. Compensation to Directors
5.4. Top 5 Highest-Paid Individuals
5.5. Stock-based Compensation
5.6. Affiliated Companies
6. Directors, Senior Management and Employees
6.1. Executive Directors
6.2. Non-standing Directors
6.3. Non-executive Directors
6.4. Senior Management
6.5. Employees
7. Major Shareholders and Related Party Transactions
7.1. Major Shareholders
7.2. Changes in the Largest Shareholder
7.3. Employee Stock Ownership Association
7.4. Investments in Affiliated Companies
7.5. Related Party Transactions
8. Internal Controls
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Summary of 2025 Third Quarter Business Report

On November 14, 2025, KB Financial Group Inc. (“KB Financial Group,” the “Company” or the “Group”) filed its business report for the third quarter of 2025 (the “Business Report”) with the Financial Services Commission of Korea and the Korea Exchange. This is a summary of the Business Report translated into English.

Except where indicated otherwise, financial information contained in this summary have been prepared in accordance with the Korean equivalent of International Financial Reporting Standards (“K-IFRS”), which differ in certain important respects from generally accepted accounting principles in the United States.

All references to “KB Financial Group,” “we,” “us,” the “Company” or the “Group” are to KB Financial Group and, unless the context requires otherwise, its subsidiaries. In addition, all references to “Won” or “KRW” in this document are to the currency of the Republic of Korea.

Table of Contents

1. Introduction to the Company

1.1. Business Purpose

KB Financial Group is a financial holding company that was established in September 2008. Its main business purpose is to hold shares in companies that are engaged in financial or related services, as well as govern and manage such companies. Its consolidated subsidiaries are primarily engaged in the banking business, as well as the credit card business, the financial investment business, the insurance business and other related businesses.

1.2. History

[Not required to be disclosed in quarterly reports]

1.3. Overview of the Business Group

[Not required to be disclosed in quarterly reports]

1.4. Capital Structure

1.4.1. Common Shares

Changes in Capital

(As of September 30, 2025) (Unit: Won, shares)
Date Type Number of Shares<br>Issued or Cancelled Par Value Price Remarks
September 29, 2008 Common Stock 356,351,693 5,000 48,444 Establishment of<br><br><br>the Company
September 2, 2009 Common Stock 30,000,000 5,000 37,250 % increase in number of common shares: 8.41865%
October 19, 2016 Common Stock 31,759,844 5,000 35,474 % increase in number of common shares: 8.22045%
December 12, 2019 Common Stock 2,303,617 5,000 — Share Cancellation^(1)^
February 14, 2022 Common Stock 3,455,426 5,000 — Share Cancellation^(1)^
August 1, 2022 Common Stock 3,455,426 5,000 — Share Cancellation^(1)^
April 4, 2023 Common Stock 5,385,996 5,000 — Share Cancellation^(1)^
August 14, 2024 Common Stock 9,982,649 5,000 — Share Cancellation^(1)^
May 15, 2025 Common Stock 12,066,320 5,000 — Share Cancellation^(1)^
Note: (1) The cancelled shares constituted treasury shares acquired pursuant to a resolution of the board of<br>directors of the Company within the limits of profit available for dividend payment, and as such, there was no change in paid-in capital.
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Number of Shares

[Not required to be disclosed in quarterly reports]

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1.4.2. Voting Rights

(As of September 30, 2025) (Unit: shares)
Items Number of Shares Notes
Total number of issued shares Common shares 381,462,103 —
Preferred shares — —
Shares without voting rights Common shares 19,310,128 Treasury shares
Preferred shares — —
Shares for which voting rights cannot be exercised pursuant to the Articles of<br>Incorporation — — —
Shares for which voting rights are restricted under relevant laws and regulations — — —
Shares with restored voting rights — — —
Total shares for which voting rights may be exercised Common shares 362,151,975 —
Preferred shares — —
Notes: (1) On April 24, 2025, the board of directors of the Company resolved to acquire and cancel certain<br>of the Company’s treasury shares and accordingly, the Company acquired 3,047,395 treasury shares from April 28, 2025 to June 30, 2025 and such acquired treasury shares are scheduled to be cancelled on January 15, 2026. For more<br>information, please refer to the Company’s report on Form 6-K furnished to the Securities and Exchange Commission on June 30, 2025
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(2) On July 24, 2025, the board of directors of the Company resolved to acquire and cancel certain of the Company’s treasury shares and accordingly, the Company has begun acquiring treasury shares from July 25, 2025 and such acquired treasury shares are scheduled to be cancelled upon completion of the acquisition. For more information, please refer to the Company’s report on Form 6-K furnished to the Securities and Exchange Commission on July  24, 2025

1.5. Dividends

On October 24, 2024, KB Financial Group disclosed a detailed plan to enhance corporate value titled “KB Financial Group’s Sustainable Value-up Plan,” which includes information on shareholder returns and dividends. The key details of the plan are as outlined below (the full version of the plan can be accessed on KB Financial Group’s website at www.kbfg.com).

The Company’s goal is to maintain a target ROE of 10% or above, as it strives to improve profitability by enhancing its RoRWA, thereby strengthening its intrinsic corporate value.

The Company also seeks to maintain a target CET1 ratio of 13% or above. It aims to carefully manage its RWA growth rate by taking capital efficiency and profitability into consideration with the goal of maintaining a CET1 ratio in the range of mid-13% throughout the year.

The Company plans to execute its shareholder return policy in two phases. In the first phase, it will aim to utilize the capital in such amount that is equivalent to the amount exceeding 13% of its CET1 ratio as of the end of the previous year for the payment of shareholder returns in the following year. These returns will be supported through quarterly cash dividends (equitably distributed on a total annual basis) and through share buybacks and cancellations. In the second phase, the Company will aim to utilize the capital in such amount that is equivalent to the amount exceeding 13.5% of its CET1 ratio in the second half of the year to pay for additional shareholder returns. These returns, which will be made based on profits accumulated throughout the year, will be executed through share buybacks and cancellations.

These goals and expectations are subject to adjustments based on economic uncertainties, regulatory considerations, capital ratio projections, and the Company’s strategic objectives, including potential inorganic growth opportunities.

KB Financial Group’s progress report on its Sustainable Value-up Plan is available on its website (www.kbfg.com).

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The below table shows the key indicators relating to our dividends for the periods indicated:

(Unit: in millions of Won, except per share amounts and percentages)
Items January 1, 2025 to<br>September 30, 2025^(1)^ January 1, 2024 to<br>December 31, 2024^(2)^ January 1, 2023 to<br>December 31, 2023^(3)^
Par value per share (Won) 5,000 5,000 5,000
(Consolidated) Net income 5,121,733 5,078,221 4,594,835
(Consolidated) Earnings per share (Won) 13,812 12,880 11,483
Total cash dividends 1,004,722 1,198,257 1,173,937
Total stock dividends — — —
(Consolidated) Cash dividend payout ratio (%) 19.6 23.6 25.3
Cash dividend yield (%) Common shares 2.4 3.5 4.9
— — — —
Stock dividend yield (%) Common shares — — —
— — — —
Cash dividend per share (Won) Common shares 2,762 3,174 3,060
— — —
Stock dividend per share Common shares — —
— — —
Notes: (1) Includes a quarterly dividend amount of Won 334,339 million (Won 912 per common share) in the<br>first quarter of fiscal year 2025, a quarterly dividend amount of Won 334,652 million (Won 920 per common share) in the second quarter of fiscal year 2025, and an expected quarterly dividend amount of Won 335,732 million (Won 930 per<br>common share) in the third quarter of fiscal year 2025
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(2) Includes a quarterly dividend amount of Won 300,087 million (Won 784 per common share) in the first quarter of fiscal year 2024, a quarterly dividend amount of Won 299,999 million (Won 791 per common share) in the second quarter of fiscal year 2024, a quarterly dividend amount of Won 299,886 million (Won 795 per common share) in the third quarter of fiscal year 2024, and an annual dividend amount of Won 298,285 million (Won 804 per common share) for fiscal year 2024.

(3) Includes a quarterly dividend amount of Won 195,967 million (Won 510 per common share) in the first quarter of fiscal year 2023, a quarterly dividend amount of Won 195,967 million (Won 510 per common share) in the second quarter of fiscal year 2023, a quarterly dividend amount of Won 194,998 million (Won 510 per common share) in the third quarter of fiscal year 2023, and an annual dividend amount of Won 587,006 million (Won 1,530 per common share) for fiscal year 2023.

1.6. Amendmentsto the Articles of Incorporation

[Not required to be disclosed in quarterly reports]

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2. Business

2.1. Results of Operations

(Unit: in millions of Won)
For the nine months ended<br>September 30, 2025 For the nine months ended<br>September 30, 2024 For the year ended<br>December 31, 2024 For the year ended<br>December 31, 2023
Net interest income 9,704,873 9,583,783 12,826,714 12,180,860
Interest income 21,934,543 22,862,563 30,491,385 29,142,024
Interest expense (12,229,670 ) (13,278,780 ) (17,664,671 ) (16,961,164 )
Net fee and commission income 2,952,381 2,852,432 3,849,627 3,673,524
Fee and commission income 4,196,022 4,069,582 5,481,843 5,368,074
Fee and commission expense (1,243,641 ) (1,217,150 ) (1,632,216 ) (1,694,550 )
Insurance service result 1,173,082 1,394,290 1,649,761 1,446,852
Insurance income 9,287,755 8,490,605 11,456,191 11,005,471
Insurance expense (8,114,673 ) (7,096,315 ) (9,806,430 ) (9,558,619 )
Net gains (losses) on financial assets/liabilities at fair value through profit or loss 2,562,975 1,472,733 1,012,081 2,163,065
Other insurance finance income (expense) (692,717 ) (353,183 ) (437,001 ) (572,476 )
Net other operating expenses (2,256,681 ) (1,584,287 ) (1,873,011 ) (2,712,989 )
General and administrative expenses (5,007,724 ) (4,872,926 ) (6,938,624 ) (6,647,406 )
Operating profit before provision for credit losses 8,436,189 8,492,842 10,089,547 9,531,430
Provision for credit losses (1,675,200 ) (1,479,143 ) (2,044,286 ) (3,146,409 )
Net operating profit 6,760,989 7,013,699 8,045,261 6,385,021
Notes: (1) Based on K-IFRS (on a consolidated basis).
--- --- ---
(2) KB Financial Group’s results of operations for the nine months ended September 30, 2024 and the year ended December 31, 2023 above have been adjusted retroactively to reflect the Financial Supervisory Service’s<br>responses to certain accounting inquiries regarding the application of K-IFRS 1117 (Insurance Contracts).
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2.2. Sources and Uses of Funds
2.2.1. Sources of Funds
--- ---
(Unit: in millions of Won)
--- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
For the nine months ended<br>September 30, 2025 For the year ended<br>December 31, 2024 For the year ended<br>December 31, 2023
Average<br>Balance Interest Rate<br>(%) Ratio<br>(%) Average<br>Balance Interest Rate<br>(%) Ratio<br>(%) Average<br>Balance Interest Rate<br>(%) Ratio<br>(%)
Won Currency Deposits 373,333,870 2.13 48.67 359,346,604 2.45 48.87 337,478,959 2.53 48.52
Certificate of deposit 10,279,639 3.06 1.34 11,148,293 3.84 1.52 10,417,992 4.07 1.50
Borrowings 35,226,681 2.77 4.59 32,774,664 3.47 4.46 32,807,456 3.38 4.72
Call money 1,981,864 2.69 0.26 1,747,858 3.43 0.24 1,384,033 3.52 0.20
Debentures 60,691,828 3.57 7.91 58,497,966 3.67 7.96 56,245,329 3.34 8.09
Others 27,629,309 3.35 3.60 24,034,767 4.09 3.26 21,767,083 4.49 3.13
Subtotal 509,143,191 2.43 66.37 487,550,152 2.78 66.31 460,100,852 2.82 66.16
Foreign Currency Deposits 40,253,263 3.43 5.25 37,798,747 4.12 5.14 35,675,306 3.97 5.13
Borrowings 17,899,777 3.84 2.33 18,638,964 4.60 2.54 21,094,988 4.3 3.03
Call money 2,045,600 4.57 0.27 1,796,999 5.16 0.24 1,348,423 4.76 0.19
Debentures 15,216,146 3.09 1.98 14,573,073 3.29 1.98 12,884,157 3.31 1.85
Others 1,578,468 3.98 0.20 1,166,042 4.38 0.16 1,067,253 3.51 0.15
Subtotal 76,993,254 3.50 10.03 73,973,825 4.11 10.06 72,070,127 3.96 10.35
Others Total shareholders’ equity 60,191,017 — 7.85 59,062,845 — 8.03 56,740,649 — 8.16
Allowances 974,966 — 0.13 1,530,852 — 0.21 1,055,315 — 0.15
Others 119,827,858 — 15.62 113,145,013 — 15.39 105,610,633 — 15.18
Subtotal 180,993,841 — 23.60 173,738,710 — 23.63 163,406,597 — 23.49
Total 767,130,286 — 100.00 735,262,687 — 100.00 695,577,576 — 100.00
Notes: (1) Based on K-IFRS (on a consolidated basis).
--- --- ---
(2) The figures for the year ended December 31, 2023 above have been restated retrospectively to reflect the application of K-IFRS 1117(Insurance Contracts).
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2.2.2. Uses of Funds
(Unit: in millions of Won)
--- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
For the nine months ended<br>September 30, 2025 For the year ended<br>December 31, 2024 For the year ended<br>December 31, 2023
Average<br>Balance Interest Rate<br>(%) Ratio<br>(%) Average<br>Balance Interest Rate<br>(%) Ratio<br>(%) Average<br>Balance Interest Rate<br>(%) Ratio<br>(%)
Won Currency Due from banks 15,524,214 0.68 2.02 15,397,433 0.83 2.09 14,595,696 1.04 2.10
Securities 189,044,128 2.99 24.64 180,330,525 3.22 24.53 166,163,329 3.27 23.89
Loans 408,174,097 4.26 53.21 390,097,807 4.67 53.06 369,004,854 4.82 53.05
Guarantee payments under payment guarantee 8,668 1.83 — 5,835 0.99 — 5,114 0.81 —
Call loan 154,256 2.79 0.02 264,716 3.56 0.04 286,735 3.62 0.04
Private placement corporate bonds 1,382,834 5.02 0.18 1,127,090 5.79 0.15 1,161,338 3.08 0.17
Credit cards 23,260,714 7.91 3.03 23,320,536 8.12 3.17 22,738,818 7.95 3.27
Others 4,519,341 15.80 0.60 3,829,387 17.76 0.53 3,235,831 18.40 0.47
Allowance (4,270,033 ) — (0.56 ) (4,193,334 ) — (0.57 ) (3,559,486 ) — (0.51 )
Subtotal 637,798,219 4.04 83.14 610,179,995 4.39 83.00 573,632,229 4.51 82.48
Foreign Currency Due from banks 10,459,342 2.51 1.36 9,494,397 2.92 1.29 8,868,559 2.39 1.27
Securities 24,823,896 5.59 3.24 23,085,246 5.60 3.14 22,373,470 4.81 3.22
Loans 37,415,064 7.03 4.88 37,007,504 7.60 5.03 36,723,273 7.48 5.28
Call loan 6,693,255 4.39 0.87 6,018,342 5.33 0.82 6,393,291 5.19 0.92
Bills bought 1,724,086 4.87 0.22 1,979,563 5.52 0.27 2,047,390 5.58 0.29
Allowance (1,654,350 ) — (0.22 ) (1,515,396 ) — (0.21 ) (1,319,579 ) — (0.19 )
Others 2,494,151 — 0.33 2,346,259 — 0.32 2,742,464 — 0.39
Subtotal 81,955,444 5.78 10.68 78,415,915 6.23 10.66 77,828,868 5.84 11.18
Others Cash 1,453,817 — 0.19 1,576,791 — 0.21 1,681,170 — 0.24
Fixed assets held for business 9,140,925 — 1.19 9,391,370 — 1.28 8,788,637 — 1.26
Others 36,781,881 — 4.80 35,698,616 — 4.85 33,646,672 — 4.84
Subtotal 47,376,623 — 6.18 46,666,777 — 6.34 44,116,479 — 6.34
Total 767,130,286 — 100.00 735,262,687 — 100.00 695,577,576 — 100.00
Notes: (1) Based on K-IFRS (on a consolidated basis).
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(2) The figures for the year ended December 31, 2023 above have been restated retrospectively to reflect the application of K-IFRS 1117(Insurance Contracts).
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2.3. Other Information to Consider in Making an Investment Decision
2.3.1. Capital Adequacy
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KB Financial Group (Unit: in billions of Won, except percentages)
--- --- --- --- --- --- --- --- --- ---
As of September 30, 2025 As of December 31, 2024 As of December 31, 2023
Total capital (A) 58,281 56,849 53,744
Risk-weighted assets (B) 358,023 345,981 321,319
BIS ratio (A/B) 16.28 % 16.43 % 16.73 %
Notes: (1) Calculated in accordance with Basel III.
--- --- ---
(2) The figures as of September 30, 2025 are preliminary.
Kookmin Bank (Unit: in billions of Won, except percentages)
--- --- --- --- --- --- --- --- --- ---
As of September 30, 2025 As of December 31, 2024 As of December 31, 2023
Total capital (A) 43,248 40,574 39,040
Risk-weighted assets (B) 241,241 234,436 215,962
BIS ratio (A/B) 17.93 % 17.31 % 18.08 %
Notes: (1) Calculated in accordance with Basel III.
--- --- ---
(2) The figures as of September 30, 2025 are preliminary.
KB Securities Co., Ltd. (Unit: in billions of Won, except percentages)
--- --- --- --- --- --- --- --- --- ---
As of September 30, 2025 As of December 31, 2024 As of December 31, 2023
Net operating capital (A) 5,671 5,397 5,058
Total amount at risk (B) 3,075 3,176 2,934
Maintenance equity margin (C) 136 134 134
Net capital ratio (A-B)/(C) 1,913.91 % 1,654.45 % 1,582.09 %
Capital surplus (A-B) 2,596 2,221 2,124
KB Insurance Co., Ltd. (Unit: in billions of Won, except percentages)
As of September 30, 2025^(1)^ As of December 31, 2024 As of December 31, 2023
Available capital (A) 12,369 11,319 11,669
Required capital (B) 6,449 6,072 5,404
Capital adequacy ratio (A/B)^(2)^ 191.79 % 186.42 % 215.94 %
Notes: (1) The figures as of September 30, 2025 are preliminary and will be revised to finalized figures in KB Insurance’s quarterly report by the end of November 2025.
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(2) The capital adequacy ratio has been calculated based on the K-ICS method since 2023.

2.3.2. Overseas Credit Ratings

[Not required to be disclosed in quarterly reports]

2.3.3. Domestic Credit Ratings

[Not required to be disclosed in quarterly reports]

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2.3.4. Early Retirement Program

To enhance productivity by improving its labor structure, Kookmin Bank implemented a voluntary early retirement program following negotiations with its labor union.

Subsidiary Date of Retirement Number of Retired Persons
Kookmin Bank January 28, 2019 615
January 20, 2020 462
January 30, 2021 800
January 21, 2022 674
January 18, 2023 713
January 19, 2024 674
January 18, 2025 647
2.3.5. Other Factors Affecting the Group’s Financial Condition and Results of Operations
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The economic outlook for Korea and its financial services sector in the remainder of 2025 and for the foreseeable future remains highly uncertain as a result of, among others, (i) volatile conditions in the Korean and global economies and financial markets resulting from interest and exchange rate fluctuations, high levels of inflation as a result of increased tariffs, lower consumer confidence, stock market and real estate market volatility, rising loan delinquency rates in Korea and changes in fiscal and monetary policies, and (ii) adverse conditions in the Korean and global economies and financial markets resulting from geopolitical uncertainties, including as a result of the imposition of significant tariffs by the United States on its trading partners and other escalations in trade protectionism globally and changes in the global policies of the United States, among others

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3. Financial Information
3.1. Consolidated Financial Information
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3.1.1. Consolidated Statements of Financial Position
--- ---
(Unit: in millions of Won)
--- --- --- --- --- --- ---
As of September 30, 2025 As of December 31, 2024
Cash and due from financial institutions 25,270,758 29,869,111
Financial assets at fair value through profit or loss 92,901,015 79,450,093
Derivative financial assets 7,104,334 11,730,767
Loans measured at amortized cost 486,519,741 472,071,840
Financial investments 132,056,076 131,009,464
Investments in associates and joint ventures 1,126,828 947,390
Insurance assets 362,133 276,191
Reinsurance assets 1,604,303 1,497,147
Property and equipment 5,136,837 5,390,015
Investment property 2,882,692 3,759,176
Intangible assets 1,783,831 1,966,684
Net defined benefit assets 284,531 258,500
Current income tax assets 367,390 339,855
Deferred income tax assets 195,123 278,824
Assets held for sale 251,937 136,838
Other assets 38,215,673 18,863,637
Total assets **** 796,063,202 **** **** 757,845,532 ****
Financial liabilities at fair value through profit or loss 10,344,311 10,720,231
Derivative financial liabilities 6,804,555 11,783,494
Deposits 448,711,993 435,687,897
Borrowings 68,790,018 68,077,012
Debentures 77,185,525 76,171,257
Insurance contract liabilities 59,014,074 55,863,701
Reinsurance contract liabilities 72,495 56,266
Provisions 862,025 927,632
Net defined benefit liabilities 89,425 100,187
Current income tax liabilities 748,196 530,720
Deferred income tax liabilities 1,592,468 1,682,292
Other liabilities 60,477,024 36,429,662
Total liabilities **** 734,692,109 **** **** 698,030,351 ****
Equity attributable to shareholders of the parent company 59,582,290 57,888,952
Share capital 2,090,558 2,090,558
Hybrid securities 4,793,384 5,082,578
Capital surplus 16,623,244 16,646,734
Accumulated other comprehensive income (450,598 ) 496,922
Retained earnings 37,992,091 34,808,220
Treasury shares (1,466,389 ) (1,236,060 )
Non-controlling interests 1,788,803 1,926,229
Total equity **** 61,371,093 **** **** 59,815,181 ****
Total liabilities and equity **** 796,063,202 **** **** 757,845,532 ****
Number of companies included as consolidated entities **** 364 **** **** 347 ****
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3.1.2. Consolidated Statements of Comprehensive Income
(Unit: in millions of Won, except per share amounts)
--- --- --- --- --- --- --- --- --- --- --- --- ---
Third Quarter of 2025 Third Quarter of 2024
Third Quarter Cumulative Third Quarter Cumulative
Net interest income 3,336,182 9,704,873 3,187,545 9,583,783
Interest income 7,194,969 21,934,543 7,637,675 22,862,563
Interest income from financial instruments at fair value through other comprehensive income and<br>amortized cost 6,826,223 20,831,343 7,267,464 21,740,172
Interest income from financial instruments at fair value through profit or loss 359,875 1,075,082 362,483 1,099,071
Insurance finance interest income 8,871 28,118 7,728 23,320
Interest expense (3,858,787 ) (12,229,670 ) (4,450,130 ) (13,278,780 )
Interest expense (3,485,314 ) (11,100,843 ) (4,082,095 ) (12,161,452 )
Insurance finance interest expense (373,473 ) (1,128,827 ) (368,035 ) (1,117,328 )
Net fee and commission income 986,397 2,952,381 942,704 2,852,432
Fee and commission income 1,418,823 4,196,022 1,342,678 4,069,582
Fee and commission expense (432,426 ) (1,243,641 ) (399,974 ) (1,217,150 )
Net insurance income 323,193 1,173,082 359,222 1,394,290
Insurance income 3,143,341 9,287,755 2,913,077 8,490,605
Insurance income 2,941,450 8,676,712 2,783,901 8,222,722
Reinsurance income 201,891 611,043 129,176 267,883
Insurance expense (2,820,148 ) (8,114,673 ) (2,553,855 ) (7,096,315 )
Insurance service expense (2,608,011 ) (7,468,912 ) (2,334,278 ) (6,438,146 )
Reinsurance expense (212,137 ) (645,761 ) (219,577 ) (658,169 )
Net gains on financial assets/liabilities at fair value through profit or loss 450,612 2,562,975 902,023 1,472,733
Other insurance finance income (expenses) (279,426 ) (692,717 ) 16,471 (353,183 )
Net other operating expenses (465,013 ) (2,256,681 ) (893,719 ) (1,584,287 )
General and administrative expenses (1,652,463 ) (5,007,724 ) (1,650,799 ) (4,872,926 )
Operating income before provision for credit losses 2,699,482 8,436,189 2,863,447 8,492,842
Provision for credit losses (364,492 ) (1,675,200 ) (498,055 ) (1,479,143 )
Net operating income 2,334,990 6,760,989 2,365,392 7,013,699
Net non-operating income (expenses) (73,557 ) 150,191 (73,400 ) (954,381 )
Share of profit of associates and joint ventures 5,413 15,674 2,770 657
Net other non-operating income (expenses) (78,970 ) 134,517 (76,170 ) (955,038 )
Profit before income tax expense 2,261,433 6,911,180 2,291,992 6,059,318
Income tax expense (606,205 ) (1,809,250 ) (690,181 ) (1,690,540 )
Profit for the period 1,655,228 5,101,930 1,601,811 4,368,778
Other comprehensive income (loss) for the period, net of tax (167,686 ) (951,991 ) (176,813 ) (1,626,188 )
Items that will not be reclassified to profit or loss:
Remeasurements of net defined benefit liabilities 20,773 19,983 5,330 17,081
Gains (losses) on equity securities at fair value through other comprehensive income (93,758 ) 119,525 19,540 (223,395 )
Fair value changes of financial liabilities designated at fair value through profit or loss due to<br>own credit risk 1,391 (9,316 ) 2,565 (8,318 )
Items that may be reclassified subsequently to profit or loss:
Currency translation differences 163,891 (187,662 ) (138,222 ) 144,192
Gains (losses) on debt securities at fair value through other comprehensive income (432,281 ) (89,532 ) 1,378,954 1,281,217
Share of other comprehensive income of associates and joint ventures 5,865 3,537 362 276
Gains (losses) on cash flow hedging instruments (33,499 ) (63,774 ) 36,602 5,420
Gains (losses) on hedging instruments of net investments in foreign operations (54,036 ) 72,958 74,053 (17,166 )
Insurance finance income (expenses) 253,968 (817,710 ) (1,555,997 ) (2,825,495 )
Total comprehensive income for the period 1,487,542 4,149,939 1,424,998 2,742,590
Profit attributable to:
Shareholders of the parent company 1,686,040 5,121,733 1,619,718 4,394,149
Non-controlling interests (30,812 ) (19,803 ) (17,907 ) (25,371 )
Total comprehensive income for the period attributable to:
Shareholders of the parent company 1,513,307 4,170,650 1,435,465 2,748,298
Non-controlling interests (25,765 ) (20,711 ) (10,467 ) (5,708 )
Earnings per share
Basic earnings per share (Won) 4,498 13,531 4,144 11,165
Diluted earnings per share (Won) 4,458 13,403 4,105 11,031
Table of Contents
3.2. Separate Financial Information
3.2.1. Separate Statements of Financial Position
--- ---
(Unit: in millions of Won)
--- --- --- --- --- --- ---
As of September 30, 2025 As of December 31, 2024
Cash and due from financial institutions 633,461 398,391
Financial assets at fair value through profit or loss 1,359,345 1,243,471
Loans measured at amortized cost 568,581 359,054
Investments in subsidiaries 26,867,817 26,867,817
Property and equipment 2,870 2,800
Intangible assets 13,027 14,497
Net defined benefit assets 1,773 2,902
Deferred income tax assets 3,586 5,257
Other assets 1,274,389 912,634
Total assets **** 30,724,849 **** **** 29,806,823 ****
Borrowings 250,000 965,000
Debentures 4,370,039 2,962,032
Current income tax liabilities 691,965 502,705
Other liabilities 619,142 388,528
Total liabilities **** 5,931,146 **** **** 4,818,265 ****
Share capital 2,090,558 2,090,558
Hybrid securities 4,793,174 5,082,359
Capital surplus 14,741,159 14,754,475
Accumulated other comprehensive loss (8,184 ) (8,316 )
Retained earnings 4,643,385 4,305,542
Treasury Shares (1,466,389 ) (1,236,060 )
Total equity **** 24,793,703 **** **** 24,988,558 ****
Total liabilities and equity **** 30,724,849 **** **** 29,806,823 ****
Table of Contents

3.2.2. Separate Statements of Comprehensive Income

(Unit: in millions of Won, except per share amounts)
Third Quarter of 2025 Third Quarter of 2024
Third Quarter Cumulative Third Quarter Cumulative
Net interest expense (20,123 ) (62,952 ) (15,342 ) (41,379 )
Interest income 8,220 24,296 10,045 32,408
Interest income from financial instruments at amortized cost 7,483 21,701 9,331 30,291
Interest income from financial instruments at fair value through profit or loss 737 2,595 714 2,117
Interest expense (28,343 ) (87,248 ) (25,387 ) (73,787 )
Net fee and commission expense (1,476 ) (4,819 ) (1,193 ) (4,759 )
Fee and commission income 483 1,473 387 1,381
Fee and commission expense (1,959 ) (6,292 ) (1,580 ) (6,140 )
Net gains (losses) on financial assets at fair value through profit or loss 18,240 66,152 26,821 70,155
Net other operating income — 2,355,586 — 2,243,250
General and administrative expenses (23,127 ) (73,460 ) (21,845 ) (69,875 )
Operating profit before provision for credit losses (26,486 ) 2,280,507 (11,559 ) 2,197,392
Provision for credit losses 32 26 470 125
Operating profit (loss) (26,454 ) 2,280,533 (11,089 ) 2,197,517
Net non-operating income (expense) 308 201 281 202
Profit (loss) before income tax (26,146 ) 2,280,734 (10,808 ) 2,197,719
Income tax income (expense) (191 ) (6,772 ) 278 1,810
Profit (loss) for the year (26,337 ) 2,273,962 (10,530 ) 2,199,529
Other comprehensive income (loss) for the year, net of tax 107 132 27 63
Items that will not be reclassified to profit or loss:
Remeasurements of net defined benefit liabilities 107 132 27 63
Total comprehensive income for the year (26,230 ) 2,274,094 (10,503 ) 2,199,592
Earnings per share
Basic earnings per share (Won) (213 ) 5,774 (159 ) 5,392
Diluted earnings per share (Won) (211 ) 5,719 (157 ) 5,327
Table of Contents
3.3. Other Selected Financial Data
3.3.1. Won-denominated Liquidity Ratio
--- ---
(Unit: in millions of Won, except percentages)
--- --- --- --- --- --- --- --- --- ---
As of September 30, 2025 As of December 31, 2024 As of December 31, 2023
Current assets in Won (A) 975,887 592,591 656,555
Current liabilities in Won (B) 437,320 383,862 255,693
Liquidity ratio (A/B) 223.15 % 154.38 % 256.77 %
Notes: (1) Based on K-IFRS (on a separate basis).
--- ---
(2) Calculated based on Won-denominated assets and liabilities due within<br>one month.
--- ---
3.3.2. Profitability Ratios
--- ---
(Unit: %)
--- --- --- --- --- --- ---
For the nine months ended<br>September 30, 2025 For the year ended<br>December 31, 2024 For the year ended<br>December 31, 2023
Net income as a percentage of average total assets (ROA) 0.88 0.68 0.64
Net income as a percentage of average shareholders’ equity (ROE) 11.67 8.87 8.32
Note: Based on K-IFRS (on a consolidated basis).
--- ---
3.3.3. 20 Largest Exposures of Kookmin Bank by Borrower (As of September 30, 2025)****
--- ---
(Unit: in billions of Won)
--- --- ---
Company Credit Extended
KB Kookmin Card Co., Ltd 1,383
Samsung Electronics Co., Ltd. 1,374
HD Hyundai Heavy Industries Co., Ltd. 1,340
Samsung Heavy Industries Co., Ltd. 1,298
Samsung SDI Co., Ltd. 1,265
NH-Amundi Asset Management 1,089
Hanwha Solutions Corporation 1,053
Construction Guarantee 1,024
E-MART Inc. 1,020
Strada Holdco L.P. 903
Samsung Card Co., Ltd. 874
LG Energy Solution, Ltd. 866
SK Innovation Co., Ltd. 839
SK hynix Inc 831
LS MnM Inc. 815
SK on Co., Ltd. 814
Shinhan Card Co., Ltd. 788
HARIM Industrial CO., LTD. 786
HANWHA CORPORATION 776
HDC HYUNDAI DEVELOPMENT COMPANY 737
Total 19,877
Table of Contents
3.3.4. 10 Largest Exposures of Kookmin Bank by Chaebol Group (As of September 30, 2025)****
(Unit: in billions of Won)
--- --- ---
Group Credit Extended
Samsung 6,785
SK 5,565
Hanwha 4,595
Hyundai Motor 3,677
Lotte 3,371
LG 2,650
GS 1,481
Shinsegae 1,481
POSCO 1,413
Hanjin 557
Total 31,575
3.3.5. Kookmin Bank’s Loan Concentration by Industry (As of September 30, 2025)****
--- ---
(Unit: in billions of Won, except percentages)
--- --- --- --- ---
Industry Total Credit Percentage ofTotal Credit
Manufacturing 61,952 26.9
Construction 4,882 2.1
Real estate activities 60,422 26.2
Wholesale and retail trade 31,722 13.8
Accommodation and food service activities 11,895 5.2
Financial activities 9,998 4.3
Others 49,539 21.5
Total 230,411 100.0
3.3.6. Top 20 Non-Performing Loans of Kookmin Bank (As of<br>September 30, 2025) ****
--- ---
(Unit: in billions of Won)
--- --- --- --- --- ---
Borrower Industry Total Credit Allowancefor Loan Losses
Borrower A Real estate activities 198 120
Borrower B Construction 37 36
Borrower C Real estate activities 35 9
Borrower D Wholesale and retail trade 17 15
Borrower E Information and communications 17 3
Borrower F Manufacturing 16 5
Borrower G Real estate activities 15 3
Borrower H Real estate activities 15 1
Borrower I Real estate activities 11 2
Borrower J Manufacturing 10 6
Borrower K Construction 10 10
Borrower L Manufacturing 9 9
Borrower M Professional, scientific and technical activities 9 9
Borrower N Real estate activities 9 0
Borrower O Manufacturing 8 2
Borrower P Construction 8 0
Borrower Q Construction 7 3
Borrower R Information and communications 7 1
Borrower S Wholesale and retail trade 7 3
Borrower T Wholesale and retail trade 7 7
— — 451 244
Table of Contents
3.4. Other Financial Information

See Exhibits 99.1 and 99.2 attached hereto for our consolidated and separate financial statements and relevant notes, which have been prepared in accordance with K-IFRS and reviewed by our independent auditors as stated in their review reports included therein. The review reports will also be available on our website at www.kbfg.com.

Table of Contents
4. Independent Public Accountants
4.1. Audit / Review Services
--- ---
(Unit: in millions of Won)
--- --- --- --- --- --- --- --- --- --- ---
Auditor Activity Agreed Per Contract Actual
Period Compensation Estimated<br>Hours Compensation Accrued<br>Hours
January 1 to September 30, 2025 Samil PricewaterhouseCoopers Quarterly, semi-annual and annual review & audit, review of internal accounting management system (including audit of internal control over financial reporting) 1,333 11,600 1,069 4,308
January 1 to December 31, 2024 Samil PricewaterhouseCoopers Quarterly, semi-annual and annual review & audit, review of internal accounting management system (including audit of internal control over financial reporting) 1,296 10,970 1,296 10,136
January 1 to December 31, 2023 Samil PricewaterhouseCoopers Quarterly, semi-annual and annual review & audit, review of internal accounting management system (including audit of internal control over financial reporting) 1,264 11,675 1,264 11,309
4.2. Public Company Accounting Oversight Board (“PCAOB”) Audit Services
--- ---
(Unit: in millions of Won)
--- --- --- --- --- ---
Period Auditor Activity Service Period Compensation
January 1 to September 30, 2025 Samil Pricewaterhouse<br><br><br>Coopers PCAOB audit of consolidated financial statements and internal control over financial reporting May 1, 2025 to<br>April 30, 2026 827
January 1 to December 31, 2024 Samil Pricewaterhouse<br><br><br>Coopers PCAOB audit of consolidated financial statements and internal control over financial reporting May 1, 2024 to<br>April 30, 2025 804
January 1 to <br>December 31, 2023 Samil Pricewaterhouse<br><br><br>Coopers PCAOB audit of consolidated financial statements and internal control over financial reporting May 1, 2023 to<br>April 30, 2024 784
4.3. Change in Auditor
--- ---

Pursuant to the Act on External Audit of Stock Companies and the related regulations thereunder, the Securities and Futures Commission under the Financial Services Commission had designated KPMG Samjong Accounting Corp. as the external auditor for the Company for the fiscal years ended December 31, 2020, 2021 and 2022. Following the end of KPMG Samjong Accounting Corp.’s designated period as the Company’s external auditor, the Company selected Samil PricewaterhouseCoopers to be its new external auditor for the fiscal years ending December 31, 2023, 2024 and 2025, in accordance with the criteria and processes set forth by relevant laws and regulations. Accordingly, the external auditor for the Company and its subsidiaries for the fiscal year ending December 31, 2025 continues to be Samil PricewaterhouseCoopers.

Table of Contents
5. Corporate Governance and Affiliated Companies
5.1. Board of Directors & Committees under the Board
--- ---

[Not required to be disclosed in quarterly reports]

5.2. Audit Committee

[Not required to be disclosed in quarterly reports]

5.3. Compensation to Directors

[Not required to be disclosed in quarterly reports]

5.4. Top 5 Highest-Paid Individuals

[Not required to be disclosed in quarterly reports]

5.5. Stock-based Compensation

[Not required to be disclosed in quarterly reports]

5.6. Affiliated Companies

[Not required to be disclosed in quarterly reports]

Table of Contents
6. Directors, Senior Management and Employees
6.1. Executive Directors
--- ---

As of September 30, 2025, we had one executive director. The name, position and the end of the term of our executive director and the number of shares of our common stock he owned as of September 30, 2025 are set forth below.

Name Date of Birth Position Common Shares Owned End of Term
Jong Hee Yang June 1961 Chairman & Chief Executive Officer 5,914 November 20, 2026
6.2. Non-standing Directors
--- ---

As of September 30, 2025, we had one non-standing director. The name, position and the end of the term of our non-standing director and the number of shares of our common stock he owned as of September 30, 2025 are set forth below.

Name Date of Birth Position Common Shares Owned End of Term^(1)^
Hwan Ju Lee October 1964 Non-standing Director 4,131 March 25, 2027
Note: (1)   The date designated as Mr. Hwan Ju Lee’s end of term is the<br>date of the annual general meeting of shareholders for fiscal year 2026, which is expected be held in March 2027.
--- ---
6.3. Non-executive Directors
--- ---

As of September 30, 2025, we had seven non-executive directors. The name, position and the end of the term of our non-executive directors and the number of shares of our common stock they respectively owned as of September 30, 2025 were as follows.

Name Date of Birth Position Common Shares Owned End of Term
Whajoon Cho February 1957 Non-executive Director — March 25, 2026
Jungsung Yeo April 1960 Non-executive Director — March 25, 2026
Jaehong Choi August 1962 Non-executive Director — March 25, 2026
Eun Young Chah October 1962 Non-executive Director — March 25, 2027
Myong-Hwal Lee May 1964 Non-executive Director — March 21, 2026
Sung—Yong Kim March 1966 Non-executive Director — March 25, 2026
Sun Yeop Kim November 1969 Non-executive Director — March 25, 2027
Table of Contents
6.4. Senior Management

Members of our senior management as of September 30, 2025 are as follows.

Name Date of Birth Position Common Shares<br>Owned^(1)^ End of Term
Jae Keun Lee May 1966 Senior Executive Vice President and Chief Business Officer of Global 2,119 December 31, 2025
Chang Kwon Lee November 1965 Senior Executive Vice President and Chief Digital Officer and Chief IT Officer 3,010 December 31, 2025
Dae Hwan Lim November 1965 Executive Vice President and Chief Compliance Officer 2,350 December 31, 2025
Young June Park November 1969 Senior Managing Director and Chief Strategy Officer 845 December 31, 2025
Bong Joong Kwon November 1969 Senior Managing Director and Head of the IR Division 3,363 December 31, 2025
Hong Sun Yum February 1971 Senior Managing Director and Chief Risk Management Officer 1,144 December 31, 2026
Hyo Ik Park January 1970 Senior Managing Director and Chief Business Officer of Insurance 1,450 December 31, 2025
Shin Dong Jeung January 1966 Senior Managing Director and Head of KB Research 1,056 December 31, 2025
Dae Hyun Cha January 1966 Senior Managing Director and Chief Officer of Audit Department 2,295 December 31, 2025
Young Gi Seo August 1965 Senior Managing Director and Vice Head of KB Research — December 31, 2026
Keoung Nam Kim August 1967 Managing Director and Head of the ESG Division 2,599 December 31, 2025
Sang Rok Na August 1972 Managing Director and Chief Financial Officer 1,373 December 31, 2025
Hyo Sung Jeon March 1971 Managing Director and Chief Human Resources Officer 2,075 December 31, 2025
Jin Young Park September 1972 Chief Public Relation Officer 2,625 December 31, 2025
Young Sei Park January 1968 Chief Consumer Protection Officer 2,087 December 31, 2025
Young Suh Cho February 1971 Head of the AI-Digital Division 2,000 December 31, 2025
Sang Won Oh December 1967 Head of the IT Division 1,272 December 31, 2025
Byoung Jip Kim April 1980 Head of the Financial AI Center 1 — December 31, 2025
Kyeong Jong Lee February 1978 Head of the Financial AI Center 2 — December 31, 2025
Hyun Jung Lee March 1977 Head of the Customer Experience Design Center 439 December 31, 2025
Byoung Ha Choi September 1972 Head of the Group Architecture Center 690 December 31, 2025
Joo Hyun Kim November 1970 Head of the Group Cloud Center 374 December 31, 2025
Myoung Hwa Park December 1969 Head of the Planning & Coordination Department 1,195 December 31, 2025
Note: (1)   The numbers of common shares owned are as of September 30, 2025<br>and includes those owned in the holder’s name under the employee stock ownership association’s account, and may differ from the number of shares owned as reported pursuant to Article 173 of the Financial Investment Services and Capital<br>Markets Act.
--- ---
Table of Contents

As of September, 2025, the following management also served as senior management at our subsidiaries.

Name Subsidiary Position Appointment Date
Hwan Ju Lee Kookmin Bank Chief Executive Officer January 2025
Keoung Nam Kim Kookmin Bank Managing Director, ESG Division July 2025
Jin Young Park Kookmin Bank Managing Director, Brand & PR Group January 2024
Young Sei Park Kookmin Bank Senior Executive Vice President, Consumer Protection Group January 2024
Young Suh Cho Kookmin Bank Senior Executive Vice President, AI/Data Innovation Division January 2025
Sang Won Oh Kookmin Bank Senior Executive Vice President, Tech Development Group January 2024
Byoung Jip Kim Kookmin Bank Managing Director, Head of the Financial AI Center 1 January 2025
Kyeong Jong Lee Kookmin Bank Managing Director, Head of the Financial AI Center 2 January 2025
Hyun Jung Lee Kookmin Bank Head of the Customer Experience Design Center January 2025
Byoung Ha Choi Kookmin Bank Head of the Tech Development Division January 2025
Joo Hyun Kim Kookmin Bank Head of the Cloud Platform Department February 2022
Myoung Hwa Park Kookmin Bank Head of the Planning & Coordination Department January 2025
Young June Park KB Securities Non-standing Director February 2025
Sang Rock Na KB Insurance Non-standing Director February 2025
Hyo Sung Jeon KB Kookmin Card Non-standing Director March 2025
Bong Joong Kwon KB Life Insurance Non-standing Director March 2025
Hyo Ik Park KB Asset Management Non-standing Director March 2025
6.5. Employees
--- ---

[Not required to be disclosed in quarterly reports]

7. Major Shareholders and Related Party Transactions
7.1. Major Shareholders
--- ---

[Not required to be disclosed in quarterly reports]

7.2. Changes in the Largest Shareholder
(Unit: shares, %)
--- --- --- --- --- --- --- ---
Name of Largest Shareholder Date of Change in Largest<br>Shareholder/<br>Date of Change in Number<br>of Shares Owned Number of Shares of<br>Common Stock^(1)^ Percentage of Total<br>Issued Shares^(2)^
Korean National Pension Service December 31, 2019 41,468,003 9.97
Korean National Pension Service February 1, 2020 41,462,588 ^(3)^ 9.97
Korean National Pension Service October 12, 2020 41,402,150 9.96
Korean National Pension Service December 31, 2020 41,287,280 9.93
Korean National Pension Service June 30, 2021 40,626,942 9.77
Korean National Pension Service December 31, 2021 37,626,516 9.05
Korean National Pension Service January 27, 2022 37,188,199 ^(4)^ 8.94
Korean National Pension Service March 31, 2022 36,008,504 8.73
Korean National Pension Service June 30, 2022 33,830,623 8.20
Korean National Pension Service September 30, 2022 32,594,691 7.97
Korean National Pension Service October 12, 2022 32,457,827 ^(5)^ 7.94
Korean National Pension Service December 31, 2022 32,499,151 7.95
Korean National Pension Service March 31, 2023 33,572,593 8.21
Korean National Pension Service June 30, 2023 33,183,590 8.22
Korean National Pension Service September 30, 2023 35,321,767 8.75
Korean National Pension Service October 6, 2023 35,273,578 8.74
Korean National Pension Service December 31, 2023 33,473,917 8.30
Korean National Pension Service February 29, 2024 33,704,092 8.35
Korean National Pension Service March 31, 2024 33,200,471 8.23
Korean National Pension Service June 30, 2024 33,326,122 8.26
Korean National Pension Service September 30, 2024 32,308,082 8.21
Korean National Pension Service December 31, 2024 33,095,691 8.41
Korean National Pension Service March 31, 2025 32,919,773 ^(6)^ 8.37
Korean National Pension Service June 30, 2025 33,064,648 ^(7)^ 8.40
Korean National Pension Service September 30, 2025 31,601,545 8.28
Table of Contents
Notes: (1)  Based on our shareholder registry as of the end of each applicable year unless specified<br>otherwise.
(2) Total number of shares of common stock issued as of the following dates:
--- ---
From October 19, 2016 to December 12, 2019: 418,111,537
---
From December 12, 2019 to February 14, 2022: 415,807,920
---
From February 14, 2022 to August 1, 2022: 412,352,494
---
From August 1, 2022 to April 4, 2023: 408,897,068
---
From April 4, 2023 to August 14, 2024: 403,511,072
---
From August 14, 2024 to May 15, 2025: 393,528,423
---
After May 15, 2025: 381,462,103
---
(3) Based on disclosure made by the Korean National Pension Service in a statement of acquisition filing on<br>February 7, 2020.
--- ---
(4) Based on disclosure made by the Korean National Pension Service in a statement of disposal filing on<br>February 4, 2022.
--- ---
(5) Based on disclosure made by the Korean National Pension Service in a statement of disposal filing on<br>November 2, 2022.
--- ---
(6) Based on the shareholder registry as of February 28, 2025.
--- ---
(7) Based on the shareholder registry as of May 12, 2025.
--- ---
7.3. Employee Stock Ownership Association
--- ---

[Not required to be disclosed in quarterly reports]

7.4. Investments in Affiliated Companies

[Not required to be disclosed in quarterly reports]

Table of Contents
7.5. Related Party Transactions
7.5.1. Purchase of capital securities issued by KB Securities Co., Ltd.
--- ---
(Unit: in billions of Won)
--- --- --- --- --- --- --- --- --- ---
Issuer Relationship Type Issue Amount Issue Date Interest Rate Maturity Date Use of Proceeds
KB Securities Co., Ltd. Subsidiary No. 1 Private Placement of Capital Securities in Won 200 March 31, 2022 4.300 % March 31, 2052<br> <br>(may be extended) Working capital
(Unit: in billions of Won)
--- --- --- --- --- --- --- --- --- ---
Issuer Relationship Type Issue Amount Issue Date Interest Rate Maturity Date Use of Proceeds
KB Securities Co., Ltd. Subsidiary No. 3 Private Placement of Capital Securities in Won 230 September 30, 2022 5.500 % September 30, 2052 (may be extended) Working capital
(Unit: in billions of Won)
--- --- --- --- --- --- --- --- --- ---
Issuer Relationship Type Issue Amount Issue Date Interest Rate Maturity Date Use of Proceeds
KB Securities Co., Ltd. Subsidiary No. 4 Private Placement of Capital Securities in Won 100 May 8, 2023 5.350 % May 8, 2053 <br>(may be extended) Working capital
7.5.2. Purchase of capital securities issued by KB Capital Co., Ltd.
--- ---
(Unit: in billions of Won)
--- --- --- --- --- --- --- --- --- ---
Issuer Relationship Type Issue Amount Issue Date Interest Rate Maturity Date Use of Proceeds
KB Capital Co., Ltd. Subsidiary No. 299 Private Placement of Capital Securities in Won 50 March 27, 2015 ^^ 7.840^^ %^(1)^ March 27, 2045 <br>(may be extended) Working capital
Note: (1) The interest rate has increased from its initial rate due to the<br>non-exercise of the call option.
--- ---
(Unit: in billions of Won)
--- --- --- --- --- --- --- --- --- ---
Issuer Relationship Type Issue Amount Issue Date Interest Rate Maturity Date Use of Proceeds
KB Capital Co., Ltd.. Subsidiary No. 320 Private Placement of Capital Securities in Won 50 September 24, 2015 ^^ 7.412^^ %^(1)^ September 24, 2045<br> <br>(may be<br>extended) Working capital
Note: (1) The interest rate has increased from its initial rate due to the<br>non-exercise of the call option.
--- ---
(Unit: in billions of Won)
--- --- --- --- --- --- --- --- --- ---
Issuer Relationship Type Issue Amount Issue Date Interest Rate Maturity Date Use of Proceeds
KB Capital Co., Ltd. Subsidiary No. 343 Private Placement of Capital Securities in Won 50 March 29, 2016 ^^ 6.305^^ %^(1)^ March 29, 2046 <br>(may be extended) Working capital
Note: (1) The interest rate has increased from its initial rate due to the<br>non-exercise of the call option.
--- ---
Table of Contents
(Unit: in billions of Won)
Issuer Relationship Type Issue Amount Issue Date Interest Rate Maturity Date Use of Proceeds
KB Capital Co., Ltd. Subsidiary No. 352 Private Placement of Capital Securities in Won 50 June 28, 2016 ^^ 6.466^^ %^(1)^ June 28, 2046<br> <br>(may be extended) Working capital
Note: (1) The interest rate has increased from its initial rate due to the<br>non-exercise of the call option.
--- ---
(Unit: in billions of Won)
--- --- --- --- --- --- --- --- --- ---
Issuer Relationship Type Issue Amount Issue Date Interest Rate Maturity Date Use of Proceeds
KB Capital Co., Ltd. Subsidiary No. 367 Private Placement of Capital Securities in Won 50 November 28,<br> <br>2016 ^^ 6.952^^ %^(1)^ November 28, 2046 <br>(may be extended) Working capital
Note: (1) The interest rate has increased from its initial rate due to the<br>non-exercise of the call option.
--- ---
(Unit: in billions of Won)
--- --- --- --- --- --- --- --- --- ---
Issuer Relationship Type Issue Amount Issue Date Interest Rate Maturity Date Use of Proceeds
KB Capital Co., Ltd. Subsidiary No. 378 Private Placement of Capital Securities in Won 50 April 27, 2017 ^^ 7.664^^ %^(1)^ April 27, 2047<br>(may be extended) Working capital
Note: (1) The interest rate has increased from its initial rate due to the<br>non-exercise of the call option.
--- ---
(Unit: in billions of Won)
--- --- --- --- --- --- --- --- --- ---
Issuer Relationship Type Issue Amount Issue Date Interest Rate Maturity Date Use of Proceeds
KB Capital Co., Ltd. Subsidiary No. 460 Private Placement of Capital Securities in Won 100 September 25, 2020 6.822 % September 25, 2050 <br>(may be extended) Working capital
(Unit: in billions of Won)
--- --- --- --- --- --- --- --- --- ---
Issuer Relationship Type Issue Amount Issue Date Interest Rate Maturity Date Use of Proceeds
KB Capital Co., Ltd. Subsidiary No. 486 Private Placement of Capital Securities in Won 100 February 17, 2022 4.495 % February 17, 2052 <br>(may be extended) Working capital
7.5.3. Purchase of capital securities issued by KB Real Estate Trust Co., Ltd.
--- ---
(Unit: in billions of Won)
--- --- --- --- --- --- --- --- --- ---
Issuer Relationship Type Issue Amount Issue Date Interest Rate Maturity Date Use of Proceeds
KB Real Estate Trust Co., Ltd. Subsidiary No. 1 Private Placement of Capital Securities in Won 150 June 27, 2024 7.800 % June 27, 2054 <br>(may be extended) Working capital
Table of Contents
7.5.4. Purchase of subordinated bonds issued by KB Savings Bank Co., Ltd.
(Unit: in billions of Won)
--- --- --- --- --- --- --- --- --- ---
Issuer Relationship Type Issue Amount Issue Date Interest Rate Maturity Date Use of Proceeds
KB Savings Bank Co., Ltd. Subsidiary No. 1 Subordinated Bonds in Won 70 June 25, 2021 1.600 % June 25, 2031 Working capital
7.5.5. Prepayments and Loans to Subsidiaries
--- ---
(Unit: in billions of Won)
--- --- --- --- --- --- --- --- ---
Name Relationship Account Loan Amount Current Balance Credit Offering Date Interest Rate Maturity Date
KB Investment Co., Ltd. Subsidiary Loans^(1)^ 40 40 July 13, 2018 3.166% July 10, 2026
Note: (1) Unsecured credit loans
--- ---
(Unit: in billions of Won)
--- --- --- --- --- --- --- --- ---
Name Relationship Account Loan Amount Current Balance Credit Offering Date Interest Rate Maturity Date
KB Investment Co., Ltd. Subsidiary Loans^(1)^ 70 70 March 8, 2019 3.165% March 6, 2026
Note: (1) Unsecured credit loans
--- ---
(Unit: in billions of Won)
--- --- --- --- --- --- --- ---
Name Relationship Account Loan Amount Current Balance Credit Offering Date Interest Rate Maturity Date
KB Investment Co., Ltd. Subsidiary Loans^(1)^ 30 30 March 9, 2020 3.165% March 6, 2026
Note: (1) Unsecured credit loans
--- ---
(Unit: in billions of Won)
--- --- --- --- --- --- --- --- ---
Name Relationship Account Loan Amount Current Balance Credit Offering Date Interest Rate Maturity Date
KB Investment Co., Ltd. Subsidiary Loans^(1)^ 30 30 July 13, 2020 3.166% July 10, 2026
Note: (1) Unsecured credit loans
--- ---
(Unit: in billions of Won)
--- --- --- --- --- --- --- --- ---
Name Relationship Account Loan Amount Current Balance Credit Offering Date Interest Rate Maturity Date
KB Investment Co., Ltd. Subsidiary Loans^(1)^ 70 70 December 20, 2021 2.858% December 19, 2025
Note: (1) Unsecured credit loans
--- ---
Table of Contents
(Unit: in billions of Won)
Name Relationship Account Loan Amount Current Balance Credit Offering Date Interest Rate Maturity Date
KB Investment Co., Ltd. Subsidiary Loans^(1)^ 60 60 July 13, 2022 3.166% July 10, 2026
Note: (1) Unsecured credit loans
--- ---
(Unit: in billions of Won)
--- --- --- --- --- --- --- --- ---
Name Relationship Account Loan Amount Current Balance Credit Offering Date Interest Rate Maturity Date
KB Investment Co., Ltd. Subsidiary Loans^(1)^ 50 50 July 13, 2023 3.166% July 10, 2026
Note: (1) Unsecured credit loans
--- ---
8. Internal Controls
--- ---

[Not required to be disclosed in quarterly reports]

Table of Contents

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

KB Financial Group Inc.
(Registrant)
Date: November 14, 2025 By: /s/ Sang Rok Na
(Signature)
Name: Sang Rok Na
Title: Managing Director and Chief Financial Officer

EX-99.1

Exhibit 99.1

KB Financial Group Inc. and Subsidiaries

Consolidated Interim Financial Statements

September 30, 2025 and 2024

(Unaudited)

KB Financial Group Inc. and Subsidiaries

Page(s)
Report on Review of Condensed Consolidated Interim Financial Statements 1-2
Consolidated Interim Financial Statements
Consolidated Interim Statements of Financial Position 3
Consolidated Interim Statements of Comprehensive Income 4-5
Consolidated Interim Statements of Changes in Equity 6
Consolidated Interim Statements of Cash Flows 7-8
Notes to the Consolidated Interim FinancialStatements 9-175

LOGO

Report on Review of Condensed Consolidated Interim Financial Statements

(English Translation of a Report Originally Issued in Korean)

To the Shareholders and the Board of Directors of

KBFinancial Group Inc.

Reviewed Financial Statements

We have reviewed the accompanying condensed consolidated interim financial statements of KB Financial Group Inc. and its subsidiaries (collectively referred to as the “Group”). These condensed consolidated interim financial statements consist of the consolidated interim statement of financial position of the Group as at September 30, 2025, and the related consolidated interim statements of comprehensive income for the three-month and nine-month periods ended September 30, 2025 and 2024, and consolidated interim statements of changes in equity and cash flows for the nine-month periods ended September 30, 2025 and 2024, and material accounting policy information and other selected explanatory notes, expressed in Korean Won.

Management’s Responsibility for the FinancialStatements

Management is responsible for the preparation and presentation of these condensed consolidated interim financial statements in accordance with International Financial Reporting Standards as adopted by the Republic of Korea (“Korean IFRS”) No. 1034 Interim Financial Reporting, and for such internal control as management determines is necessary to enable the preparation of condensed consolidated interim financial statements that are free from material misstatement, whether due to fraud or error.

Auditor’s Responsibility

Our responsibility is to express a conclusion on these condensed consolidated interim financial statements based on our review.

We conducted our review in accordance with quarterly or semi-annual review standards established by the Securities and Futures Commission of the Republic of Korea. A review of interim financial information consists of making inquiries, primarily of persons responsible for financial and accounting matters, and applying analytical and other review procedures. A review is substantially less in scope than an audit conducted in accordance with Korean Standards on Auditing and consequently does not enable us to obtain assurance that we would become aware of all significant matters that might be identified in an audit. Accordingly, we do not express an audit opinion.

Conclusion

Based on our review, nothing has come to our attention that causes us to believe the accompanying condensed consolidated interim financial statements are not prepared, in all material respects, in accordance with Korean IFRS No. 1034 Interim Financial Reporting.

1

Other Matters

We have audited the consolidated statement of financial position of the Group as at December 31, 2024, and the related consolidated statements of comprehensive income, changes in equity and cash flows for the year then ended, not presented herein, in accordance with Korean Standards on Auditing. We expressed an unqualified opinion on those financial statements in our audit report dated March 5, 2025. The consolidated statement of financial position as at December 31, 2024, presented herein for comparative purposes, is consistent, in all material respects, with the above audited statement of financial position as at December 31, 2024.

Review standards and their application in practice vary among countries. The procedures and practices used in the Republic of Korea to review such financial statements may differ from those generally accepted and applied in other countries.

/s/ Samil PricewaterhouseCoopers

Seoul, Korea

November 14, 2025

This report is effective as of November 14, 2025, the review report date. Certain subsequent events or circumstances, which may occur between the review report date and the time of reading this report, could have a material impact on the accompanying condensed consolidated interim financial statements and notes thereto. Accordingly, the readers of the review report should understand that there is a possibility that the above review report may have to be revised to reflect the impact of such subsequent events or circumstances, if any.

2

KB Financial Group Inc. and Subsidiaries

Consolidated Interim Statements of Financial Position

September 30, 2025 and December 31, 2024

(in millions of Korean won)

Notes September 30,2025(Unaudited) December 31,2024
Assets
Cash and due from financial institutions 4,6,7,30 ~~W~~ 25,270,758 ~~W~~ 29,869,111
Financial assets at fair value through profit or loss 4,6,11 92,901,015 79,450,093
Derivative financial assets 4,6,8 7,104,334 11,730,767
Loans measured at amortized cost 4,6,9,10 486,519,741 472,071,840
Financial investments 4,6,11 132,056,076 131,009,464
Investments in associates and joint ventures 1,126,828 947,390
Insurance contract assets 29 362,133 276,191
Reinsurance contract assets 29 1,604,303 1,497,147
Property and equipment 5,136,837 5,390,015
Investment property 2,882,692 3,759,176
Intangible assets 1,783,831 1,966,684
Net defined benefit assets 18 284,531 258,500
Current income tax assets 367,390 339,855
Deferred income tax assets 12,25 195,123 278,824
Assets held for sale 251,937 136,838
Other assets 4,6 38,215,673 18,863,637
Total assets ~~W~~ 796,063,202 ~~W~~ 757,845,532
Liabilities
Financial liabilities at fair value through profit or loss 4,6,13 ~~W~~ 10,344,311 ~~W~~ 10,720,231
Derivative financial liabilities 4,6,8 6,804,555 11,783,494
Deposits 4,6,14 448,711,993 435,687,897
Borrowings 4,6,15 68,790,018 68,077,012
Debentures 4,6,16 77,185,525 76,171,257
Insurance contract liabilities 29 59,014,074 55,863,701
Reinsurance contract liabilities 29 72,495 56,266
Provisions 17 862,025 927,632
Net defined benefit liabilities 18 89,425 100,187
Current income tax liabilities 748,196 530,720
Deferred income tax liabilities 12,25 1,592,468 1,682,292
Other liabilities 4,6 60,477,024 36,429,662
Total liabilities 734,692,109 698,030,351
Equity
Share capital 2,090,558 2,090,558
Hybrid securities 4,793,384 5,082,578
Capital surplus 16,623,244 16,646,734
Accumulated other comprehensive income 27 (450,598 ) 496,922
Retained earnings 37,992,091 34,808,220
Treasury shares (1,466,389 ) (1,236,060 )
Equity attributable to shareholders of the Parent Company 19 59,582,290 57,888,952
Non-controlling interests 1,788,803 1,926,229
Total equity 61,371,093 59,815,181
Total liabilities and equity ~~W~~ 796,063,202 ~~W~~ 757,845,532

The above consolidated interim statements of financial position should be read in conjunction with the accompanying notes.

3

KB Financial Group Inc. and Subsidiaries

Consolidated Interim Statements of Comprehensive Income

Three-Month and Nine-Month Periods Ended September 30, 2025 and 2024

(in millions of Korean won, except pershare amounts)

Notes 2025(Unaudited) 2024(Unaudited)
Three months Nine months Three months Nine months
Interest income ~~W~~ 7,194,969 ~~W~~ 21,934,543 ~~W~~ 7,637,675 ~~W~~ 22,862,563
Interest income from financial instruments at fair value through other comprehensive income and<br>amortized cost 6,826,223 20,831,343 7,267,464 21,740,172
Interest income from financial instruments at fair value through profit or loss 359,875 1,075,082 362,483 1,099,071
Insurance finance interest income 8,871 28,118 7,728 23,320
Interest expense (3,858,787 ) (12,229,670 ) (4,450,130 ) (13,278,780 )
Interest expense (3,485,314 ) (11,100,843 ) (4,082,095 ) (12,161,452 )
Insurance finance interest expense (373,473 ) (1,128,827 ) (368,035 ) (1,117,328 )
Net interest income 5,20 3,336,182 9,704,873 3,187,545 9,583,783
Fee and commission income 1,418,823 4,196,022 1,342,678 4,069,582
Fee and commission expense (432,426 ) (1,243,641 ) (399,974 ) (1,217,150 )
Net fee and commission income 5,21 986,397 2,952,381 942,704 2,852,432
Insurance income 3,143,341 9,287,755 2,913,077 8,490,605
Insurance income 2,941,450 8,676,712 2,783,901 8,222,722
Reinsurance income 201,891 611,043 129,176 267,883
Insurance expense (2,820,148 ) (8,114,673 ) (2,553,855 ) (7,096,315 )
Insurance service expense (2,608,011 ) (7,468,912 ) (2,334,278 ) (6,438,146 )
Reinsurance expense (212,137 ) (645,761 ) (219,577 ) (658,169 )
Net insurance income 5,29 323,193 1,173,082 359,222 1,394,290
Net gains on financial instruments at fair value through profit or loss 5,22 450,612 2,562,975 902,023 1,472,733
Other insurance finance expenses 5,29 (279,426 ) (692,717 ) 16,471 (353,183 )
Net other operating expenses 5,23 (465,013 ) (2,256,681 ) (893,719 ) (1,584,287 )
General and administrative expenses 5,18,24 (1,652,463 ) (5,007,724 ) (1,650,799 ) (4,872,926 )
Operating income before provision for credit losses 5 2,699,482 8,436,189 2,863,447 8,492,842
Provision for credit losses 5,7,9,10,17 (364,492 ) (1,675,200 ) (498,055 ) (1,479,143 )
Net operating income 5 2,334,990 6,760,989 2,365,392 7,013,699
Share of profit (loss) of investments in associates and joint ventures 5 5,413 15,674 2,770 657
Net other non-operating income (expenses) 5 (78,970 ) 134,517 (76,170 ) (955,038 )
Net non-operating income (expenses) (73,557 ) 150,191 (73,400 ) (954,381 )
Profit before income tax expense 5 2,261,433 6,911,180 2,291,992 6,059,318
Income tax expense 5,25 (606,205 ) (1,809,250 ) (690,181 ) (1,690,540 )
Profit for the period 5 1,655,228 5,101,930 1,601,811 4,368,778

(Continued)

4

KB Financial Group Inc. and Subsidiaries

Consolidated Interim Statements of Comprehensive Income

Three-Month and Nine-Month Periods Ended September 30, 2025 and 2024(cont’d)

(in millions of Koreanwon, except per share amounts)

Notes 2025(Unaudited) 2024(Unaudited)
Three months Nine months Three months Nine months
Items that will not be reclassified to profit or loss:
Remeasurements of net defined benefit liabilities ~~W~~ 20,773 19,983 ~~W~~ 5,330 17,081
Gains(losses) on equity securities at fair value through other comprehensive income (93,758 ) 119,525 19,540 (223,395 )
Fair value changes of financial liabilities designated at fair value through profit or loss due to<br>own credit risk 1,391 (9,316 ) 2,565 (8,318 )
(71,594 ) 130,192 27,435 (214,632 )
Items that may be reclassified subsequently to profit or loss:
Currency translation differences 163,891 (187,662 ) (138,222 ) 144,192
Gains(losses) on debt securities at fair value through other comprehensive income (432,281 ) (89,532 ) 1,378,954 1,281,217
Share of other comprehensive income (loss) of associates and joint ventures 5,865 3,537 362 276
Gains (losses) on cash flow hedging instruments 8 (33,499 ) (63,774 ) 36,602 5,420
Gains (losses) on hedging instruments of net investments in foreign operations 8 (54,036 ) 72,958 74,053 (17,166 )
Insurance finance income(expense) 29 253,968 (817,710 ) (1,555,997 ) (2,825,495 )
(96,092 ) (1,082,183 ) (204,248 ) (1,411,556 )
Other comprehensive income (loss) for the period, net of tax (167,686 ) (951,991 ) (176,813 ) (1,626,188 )
Total comprehensive income (loss) for the period ~~W~~ 1,487,542 ~~W~~ 4,149,939 ~~W~~ 1,424,998 ~~W~~ 2,742,590
Profit(loss) attributable to: 5
Shareholders of the Parent Company ~~W~~ 1,686,040 ~~W~~ 5,121,733 ~~W~~ 1,619,718 ~~W~~ 4,394,149
Non-controlling interests (30,812 ) (19,803 ) (17,907 ) (25,371 )
~~W~~ 1,655,228 ~~W~~ 5,101,930 ~~W~~ 1,601,811 ~~W~~ 4,368,778
Total comprehensive income (loss) for the period attributable to:
Shareholders of the Parent Company ~~W~~ 1,513,307 ~~W~~ 4,170,650 ~~W~~ 1,435,465 ~~W~~ 2,748,298
Non-controlling interests (25,765 ) (20,711 ) (10,467 ) (5,708 )
~~W~~ 1,487,542 ~~W~~ 4,149,939 ~~W~~ 1,424,998 ~~W~~ 2,742,590
Earnings per share (in Korean won) 28
Basic earnings per share ~~W~~ 4,498 ~~W~~ 13,531 ~~W~~ 4,144 ~~W~~ 11,165
Diluted earnings per share 4,458 13,403 4,105 11,031

The above consolidated interim statements of comprehensive income should be read in conjunction with the accompanying notes.

5

KB Financial Group Inc. and Subsidiaries

Consolidated Interim Statements of Changes in Equity

Nine-Month Periods Ended September 30, 2025 and2024

(in millions of Korean won)

Equity attributable to shareholders of the Parent Company
Sharecapital Hybridsecurities Capitalsurplus Accumulatedothercomprehensiveincome Retainedearnings Treasuryshares Non-controllinginterests Total<br>equity
Balance as of January 1, 2024 ~~W~~ 2,090,558 ~~W~~ 5,032,803 ~~W~~ 16,647,916 ~~W~~ 2,152,644 ~~W~~ 31,934,600 ~~W~~ (1,165,837 ) ~~W~~ 1,943,506 ~~W~~ 58,636,190
Comprehensive income for the period —
Profit for the period — — — — 4,394,149 — (25,371 ) 4,368,778
Remeasurements of net defined benefit liabilities — — — 16,705 — — 376 17,081
Currency translation differences — — — 126,026 — — 18,166 144,192
Gains (losses) on financial instruments at fair value through other comprehensive income and<br>transfer to retained earnings — — — 1,059,514 (2,796 ) — 1,104 1,057,822
Share of other comprehensive income of associates and joint ventures — — — 276 — — — 276
Losses on cash flow hedging instruments — — — 5,403 — — 17 5,420
Losses on hedging instruments of net investments in foreign operations — — — (17,166 ) — — — (17,166 )
Insurance finance expenses — — — (2,825,495 ) — — — (2,825,495 )
Fair value changes of financial liabilities designated at fair value through profit or loss due to<br>own credit risk — — — (8,318 ) — — — (8,318 )
Total comprehensive income for the period — — — (1,643,055 ) 4,391,353 — (5,708 ) 2,742,590
Transactions with shareholders
Annual dividends paid to shareholders of the Parent Company — — — — (587,006 ) — — (587,006 )
Quarterly dividends paid to shareholders of the Parent Company — — — — (600,085 ) — — (600,085 )
Issuance of hybrid securities — 399,059 — — — — 756,317 1,155,376
Dividends on hybrid securities — — — — (150,164 ) — (77,162 ) (227,326 )
Redemption of hybrid securities — (349,309 ) — — — — (659,867 ) (1,009,176 )
Acquisition of treasury shares — — — — — (490,679 ) — (490,679 )
Disposal of treasury shares — — 3,975 — — 234,600 — 238,575
Retirement of treasury shares — — — — (515,177 ) 515,177 — —
Ownership changes in subsidiaries — — — — — — 15,445 15,445
Others — — (33,991 ) — — — (11,014 ) (45,005 )
Total transactions with shareholders — 49,750 (30,016 ) — (1,852,432 ) 259,098 23,719 (1,549,881 )
Balance as of September 30, 2024 (Unaudited) ~~W~~ 2,090,558 ~~W~~ 5,082,553 ~~W~~ 16,617,900 ~~W~~ 509,589 ~~W~~ 34,473,521 ~~W~~ (906,739 ) ~~W~~ 1,961,517 ~~W~~ 59,828,899
Balance as of January 1, 2025 ~~W~~ 2,090,558 ~~W~~ 5,082,578 ~~W~~ 16,646,734 ~~W~~ 496,922 ~~W~~ 34,808,220 ~~W~~ (1,236,060 ) ~~W~~ 1,926,229 ~~W~~ 59,815,181
Comprehensive income for the period
Profit for the period — — — — 5,121,733 — (19,803 ) 5,101,930
Remeasurements of net defined benefit liabilities — — — 20,402 — — (419 ) 19,983
Currency translation differences — — — (187,312 ) — — (350 ) (187,662 )
Gains(losses) on financial instruments at fair value through other comprehensive income and<br>transfer to retained earnings — — — 33,622 (3,563 ) — (66 ) 29,993
Share of other comprehensive income of associates and joint ventures — — — 3,537 — — — 3,537
Losses on cash flow hedging instruments — — — (63,701 ) — — (73 ) (63,774 )
Gains on hedging instruments of net investments in foreign operations — — — 72,958 — — — 72,958
Insurance finance expenses — — — (817,710 ) — — — (817,710 )
Fair value changes of financial liabilities designated at fair value through profit or loss due to<br>own credit risk — — — (9,316 ) — — — (9,316 )
Total comprehensive income for the period — — — (947,520 ) 5,118,170 — (20,711 ) 4,149,939
Transactions with shareholders
Annual dividends paid to shareholders of the Parent Company — — — — (298,285 ) — — (298,285 )
Quarterly dividends paid to shareholders of the Parent Company — — — — (668,990 ) — — (668,990 )
Issuance of hybrid securities — 404,028 — — — — — 404,028
Dividends on hybrid securities — — — — (154,322 ) — (94,095 ) (248,417 )
Redemption of hybrid securities — (693,222 ) — — — — — (693,222 )
Acquisition of treasury shares — — — — — (1,044,851 ) — (1,044,851 )
Retirement of treasury shares — — — — (814,522 ) 814,522 — —
Ownership changes in subsidiaries — — (10,401 ) — — — (24,511 ) (34,912 )
Others — — (13,089 ) — 1,820 — 1,891 (9,378 )
Total transactions with shareholders — (289,194 ) (23,490 ) — (1,934,299 ) (230,329 ) (116,715 ) (2,594,027 )
Balance as of September 30, 2025 (Unaudited) ~~W~~ 2,090,558 ~~W~~ 4,793,384 ~~W~~ 16,623,244 ~~W~~ (450,598 ) ~~W~~ 37,992,091 ~~W~~ (1,466,389 ) ~~W~~ 1,788,803 ~~W~~ 61,371,093

The above consolidated interim statements of changes in equity should be read in conjunction with the accompanying notes.

6

KB Financial Group Inc. and Subsidiaries

Consolidated Interim Statements of Cash Flows

Nine-Month Periods Ended September 30, 2025 and 2024

(in millions of Korean won)

Notes 2025(Unaudited) 2024(Unaudited)
Cash flows from operating activities
Profit for the period ~~W~~ 5,101,930 ~~W~~ 4,368,778
Adjustment for non-cash items
Net gains on financial assets at fair value through profit or loss (1,482,971 ) (622,772 )
Net gains (losses) on derivative financial instruments for hedging purposes (14,629 ) 80,376
Provision for credit losses 1,675,200 1,479,143
Net gains (losses) on financial investments (151,299 ) 33,471
Share of profit (losses) of associates and joint ventures (15,674 ) (657 )
Depreciation and amortization expense 675,175 675,950
Other net gains (losses) on property and equipment/intangible assets (192,929 ) 114,330
Share-based payments 111,102 113,370
Post-employment benefits 142,908 134,553
Net interest expense (income) 241,897 (22,888 )
Losses on foreign currency translation 630,967 320,320
Insurance finance income (8,247,289 ) (8,306,230 )
Reinsurance finance expense 886,881 1,175,812
Other expenses 669,212 600,039
(5,071,449 ) (4,225,183 )
Changes in operating assets and liabilities
Financial asset at fair value through profit or loss (9,729,306 ) 1,113,034
Derivative financial instruments 31,760 (151,155 )
Loans measured at fair value through other comprehensive income (193,397 ) (294,656 )
Loans measured at amortized cost (17,154,927 ) (22,299,914 )
Current income tax assets (27,535 ) (70,840 )
Deferred income tax assets 78,989 122,322
Other assets (21,213,888 ) (6,898,416 )
Financial liabilities at fair value through profit or loss (1,023,966 ) (989,319 )
Deposits 12,749,087 16,218,279
Current income tax liabilities 217,477 262,835
Deferred income tax liabilities 187,387 414,743
Other liabilities 21,946,011 9,581,049
Insurance contract assets (85,942 ) (83,116 )
Reinsurance contract assets (995,670 ) (1,032,768 )
Insurance contract liabilities 10,280,984 9,077,250
Reinsurance contract liabilities 23,875 32,113
Investment contract liabilities 1,677,952 (138,234 )
(3,231,109 ) 4,863,207
Net cash inflow(outflow) from operating activities (3,200,628 ) 5,006,802

(Continued)

7

KB Financial Group Inc. and Subsidiaries

Consolidated Interim Statements of Cash Flows

Nine-Month Periods Ended September 30, 2025 and 2024(cont’d)

(in millions of Koreanwon)

Notes 2025(Unaudited) 2024(Unaudited)
Cash flows from investing activities
Net cash flows from derivative financial instruments for hedging purposes (100,143 ) (33,619 )
Disposal of financial asset at fair value through profit or loss 17,414,755 6,932,112
Acquisition of financial asset at fair value through profit or loss (19,698,102 ) (7,185,528 )
Disposal of financial investments 42,363,071 28,468,338
Acquisition of financial investments (42,576,141 ) (31,072,493 )
Disposal of investments in associates and joint ventures 221,558 82,274
Acquisition of investments in associates and joint ventures (385,240 ) (93,485 )
Disposal of property and equipment 62,314 4,856
Acquisition of property and equipment (219,349 ) (175,147 )
Disposal of investment property 763,052 —
Acquisition of investment property (183,504 ) —
Disposal of intangible assets 9,635 13,046
Acquisition of intangible assets (116,847 ) (184,883 )
Net cash flows from changes in ownership of subsidiaries 1,165,169 22,887
Others (23,431 ) (211,395 )
Net cash outflow from investing activities (1,303,203 ) (3,433,037 )
Cash flows from financing activities
Net cash flows from derivative financial instruments for Hedging purposes (199,200 ) (199,198 )
Net Increase (decrease) in borrowings 1,707,129 (5,768,403 )
Increase in debentures 48,223,497 32,062,925
Decrease in debentures (46,951,751 ) (30,104,715 )
Increase in other payables to trust accounts 1,236,046 544,993
Dividends paid (967,275 ) (1,187,092 )
Issuance of hybrid securities 404,028 399,059
Redemption of hybrid securities (695,000 ) (349,309 )
Dividends paid on hybrid securities (154,322 ) (150,164 )
Acquisition of treasury shares (1,044,851 ) (490,679 )
Redemption of principal elements of lease payments (274,810 ) (238,543 )
Decrease(increase) in non-controlling interests (95,270 ) 194,331
Others (275,331 ) (172,091 )
Net cash inflow (outflow) from financing activities 912,890 (5,458,886 )
Effect of exchange rate changes on cash and cash equivalents (132,742 ) 174,979
Net decrease in cash and cash equivalents (3,723,683 ) (3,710,142 )
Cash and cash equivalents at the beginning of the period 30 24,608,867 25,826,588
Cash and cash equivalents at the end of the period 30 ~~W~~ 20,885,184 22,116,446

The above consolidated interim statements of cash flows should be read in conjunction with the accompanying notes.

8

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

1. The Parent Company

KB Financial Group Inc. (the “Parent Company”) was incorporated on September 29, 2008, under the Financial Holding Companies Act of Korea. KB Financial Group Inc. and its subsidiaries (the “Group”) derive substantially all of their revenue and income from providing a broad range of banking and related financial services to consumers and corporations. The Parent Company’s main business purpose is to control subsidiaries that engage in the financial business or subsidiaries closely related to the financial business through the stock ownership. The Parent Company’s headquarter is located at 26, Gukjegeumyung-ro 8-gil, Yeongdeungpo-gu, Seoul. In 2011, Kookmin Bank spun off its credit card business segment and established a new separate credit card company, KB Kookmin Card Co., Ltd. and KB Investment & Securities Co., Ltd. merged with KB Futures Co., Ltd. The Group established KB Savings Bank Co., Ltd. in January 2012, acquired Yehansoul Savings Bank Co., Ltd. in September 2013, and KB Savings Bank Co., Ltd. merged with Yehansoul Savings Bank Co., Ltd. in January 2014. In March 2014, the Group acquired Woori Financial Co., Ltd. and changed the name to KB Capital Co., Ltd. Meanwhile, the Group included LIG Insurance Co., Ltd. as an associate and changed the name to KB Insurance Co., Ltd. in September 2015, and KB Insurance Co., Ltd. became one of the subsidiaries through a tender offer in May 2017. Also, the Group included Hyundai Securities Co., Ltd. as an associate in September 2016 and included as a subsidiary in October 2016 by comprehensive exchange of shares. Hyundai Securities Co., Ltd. merged with KB Investment & Securities Co., Ltd. in December 2016 and changed its name to KB Securities Co., Ltd. in January 2017. In August 2020, the Group acquired Prudential Life Insurance Company of Korea Ltd. which was classified as a subsidiary and the name was changed to KB Life Insurance Co., Ltd. in December 2022. Then in January 2023, it merged with another existing KB Life Insurance Co., Ltd. The Parent Company sold 100% shares of KB Credit Information Co., Ltd. to KB Kookmin Card Co., Ltd. on September 30, 2023.

The Parent Company’s share capital as of September 30, 2025, is ~~W~~ 2,090,558 million. The Parent Company has been listed on the Korea Exchange (“KRX”) since October 10, 2008, and on the New York Stock Exchange (“NYSE”) for its American Depositary Shares (“ADS”) since September 29, 2008. Number of shares authorized in its Articles of Incorporation is 1,000 million.

9

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

2. Basis of Preparation

2.1 Application of Korean IFRS

The Group maintains its accounting records in Korean won and prepares statutory consolidated financial statements in the Korean language (Hangul) in accordance with International Financial Reporting Standards as adopted by the Republic of Korea (“Korean IFRS”). The accompanying consolidated financial statements have been translated into English from the Korean language consolidated financial statements.

The consolidated financial statements of the Group have been prepared in accordance with Korean IFRS. Korean IFRS are the standards and related interpretations issued by the International Accounting Standards Board (“IASB”) that have been adopted by the Republic of Korea.

The preparation of the consolidated financial statements requires the use of certain critical accounting estimates. Management also needs to exercise judgment in applying the Group’s accounting policies. The areas that require a more complex and higher level of judgment or areas that require significant assumptions and estimations are disclosed in Note 2.4.

The Group’s condensed consolidated interim financial statements for the nine-month period ended September 30, 2025, have been prepared in accordance with Korean IFRS No.1034 Interim Financial Reporting and contain less information than is required in annual consolidated financial statements. Selected explanatory notes include descriptions of transactions or events that are significant in understanding change in financial position and financial performance of the Group since the end of the previous annual reporting period. These condensed consolidated interim financial statements have been prepared in accordance with Korean IFRS which is effective or early adopted as of September 30, 2025.

2.1.1 The Group has applied the following new and amended standards for the first time for its annual reporting period commencing January 1, 2025.

- Amendment of Korean IFRS No.1021 “The Effects of Changes inForeign Exchange Rates” and Korean IFRS No.1101 “First-time Adoption of International Financial Reporting Standards”—Lack of exchangeability

The amendments require the Group to determine a spot exchange rate when exchangeability is lacking, and to disclose information on the nature and financial effects of the currency not being exchangeable into the other currency, the spot exchange rate(s) used, the estimation process, and the risks to which the Group is exposed. These amendments do not have a significant impact on the financial statements.

10

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

2.1.2 The following are the accounting standards that have been established or announced but have not yet been implemented, which the Group has not applied

- Amendment of Korean IFRS No.1109 “Financial Instruments” and No.1107 “FinancialInstruments”

The amendments respond to recent questions arising in practice. This amendment will be applied to the financial statements for the accounting year beginning on or after January 1, 2026. These amendments do not have a significant impact on the financial statements.

- clarify the date of recognition and derecognition of some financial assets and liabilities, with a new exception<br>for some financial liabilities settled through an electronic cash transfer system;
- clarify and add further guidance for assessing whether a financial asset meets the solely payments of principal<br>and interest (SPPI) criterion;
--- ---
- add new disclosures for certain instruments with contractual terms that can change cash flows<br>
--- ---
- update the disclosures for equity instruments designated at fair value through other comprehensive income<br>(FVOCI).
--- ---

- Korean IFRS Accounting Standards Annual Improvements Volume 11

Korean IFRS Accounting Standards Annual Improvements Volume 11 will be effective for annual reporting periods beginning on or after January 1, 2026. These amendments do not have a significant impact on the financial statements.

• Korean IFRS No.1101 “First-time adoption of International Financial Reporting Standards”: Hedge<br>accounting by a first-time adopter
• Korean IFRS No.1107 “Financial Instruments: Disclosures”: Gain or loss on derecognition, Application<br>guidance
--- ---
• Korean IFRS No.1109 “Financial Instruments”: Derecognition of lease liabilities, Definition of<br>transaction price
--- ---
• Korean IFRS No.1110 “Consolidated Financial Statements”: Determination of a ‘de facto<br>agent’
--- ---
• Korean IFRS Bo.1007 “Statement of Cash Flows”: Cost method
--- ---

2.1.3 Restatement of financial statements for the nine-month period ended September 30, 2024 for the application of Insurance Contract accounting policy changes

In applying K-IFRS No. 1117, the Group has developed and applied its own accounting policies for areas where accounting treatment is not clearly defined. In order to provide more reliable and relevant information, the Group has changed some of these policies during the year ended December 31, 2024, and has retrospectively applied them to each prior reporting period presented in accordance with Korean IFRS No. 1008, “Accounting Policies, Changes in Accounting Estimates, and Errors”.

There is no effect on the statement of cash flows due to the change in accounting policy. The effects of applying the changes in accounting policies on the comprehensive income statement for the nine-month period ended September 30, 2024, and the financial position as of December 31, 2023, are as follows:

11

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

2.1.3.1 The condensed consolidated statement of comprehensive income for the nine-month period ended September 30, 2024

(In millions of Korean won) Before the effects<br>of change in<br>accounting policy After the effects<br>of change in<br>accounting policy Net increase<br>(decrease)
Interest income ~~W~~ 9,522,689 ~~W~~ 9,583,783 ~~W~~ 61,094
Insurance finance interest income 24,092 23,320 (772 )
Insurance finance interest expense (1,179,194 ) (1,117,328 ) 61,866
Net insurance income 1,372,729 1,394,290 21,561
Insurance income 8,479,376 8,490,605 11,229
Insurance income 8,211,493 8,222,722 11,229
Insurance expense (7,106,647 ) (7,096,315 ) 10,332
Insurance service expense (6,438,682 ) (6,438,146 ) 536
Reinsurance expense (667,965 ) (658,169 ) 9,796
Other insurance finance expenses (268,979 ) (353,183 ) (84,204 )
Net operating income 7,015,248 7,013,699 (1,549 )
Net non-operating expenses (954,381 ) (954,381 ) —
Profit before income tax expense 6,060,867 6,059,318 (1,549 )
Income tax expense (1,690,949 ) (1,690,540 ) 409
Profit for the period 4,369,918 4,368,778 (1,140 )
Other comprehensive income (loss), net of tax (1,783,331 ) (1,626,188 ) 157,143
Net Financial Income (Expense) of Insurance Contract Assets (Liabilities) (2,982,638 ) (2,825,495 ) 157,143
Total comprehensive income for the period ~~W~~ 2,586,587 ~~W~~ 2,742,590 ~~W~~ 156,003

12

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

2.1.3.2 The condensed consolidated statements of financial position as of December 31, 2023

(In millions of Korean won) Before the effects<br>of change in<br>accounting policy After the effects<br>of change in<br>accounting policy Net increase<br>(decrease)
Reinsurance contract assets ~~W~~ 1,655,168 ~~W~~ 1,642,432 ~~W~~ (12,736 )
Total assets 715,738,152 715,725,416 (12,736 )
Insurance contract liabilities 50,308,552 50,617,990 309,438
Deferred income tax liabilities 2,179,966 2,094,912 (85,054 )
Total liabilities 656,864,842 657,089,226 224,384
Accumulated other comprehensive income (loss) 2,295,165 2,152,644 (142,521 )
Retained earnings 32,029,199 31,934,600 (94,599 )
Total equity 58,873,310 58,636,190 (237,120 )
Total liabilities and equity ~~W~~ 715,738,152 ~~W~~ 715,725,416 ~~W~~ (12,736 )

2.2 Measurement Basis

The consolidated financial statements have been prepared based on the historical cost accounting model unless otherwise specified.

2.3 Functional and Presentation Currency

Items included in the financial statements of each entity of the Group are measured using the currency of the primary economic environment in which the entity operates (“functional currency”). The consolidated financial statements are presented in Korean won, which is the Parent Company‘s functional and presentation currency.

2.4 Critical Accounting Estimates

The Group applies accounting policies and uses judgements, accounting estimates and assumptions that may have a significant impact on the assets (liabilities) and incomes (expenses). Management’s estimates of outcomes may differ from actual outcomes if management’s estimates and assumptions based on management’s best judgment at the reporting date are different from the actual environment.

Estimates and underlying assumptions are continually evaluated, and changes in accounting estimates are recognized in the period in which the estimates are changed and in any future periods affected.

Uncertainties in estimates and assumptions with significant risks used in the preparation of these condensed consolidated interim financial statements are the same as those applied to the consolidated financial statements for the year ended December 31, 2024.

3. Material Accounting Policies

The material accounting policies and calculation methods applied in the preparation of these consolidated interim financial statements are the same as those applied to the consolidated financial statements for the year ended December 31, 2024, except for the impact of changes due to adopting new and amended standards and interpretations described in Note 2.1 and below paragraph.

13

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

4. Financial Risk Management

4.1 Summary

4.1.1 Overview of financial risk management policy

The financial risks that the Group is exposed to are credit risk, market risk, liquidity risk, operational risk, and others.

This note regarding financial risk management provides information about the risks that the Group is exposed to and about its objectives, policies, risk assessment and management procedures, and capital management. Additional quantitative information is disclosed throughout the consolidated financial statements.

The Group’s risk management system focuses on efficiently supporting long-term strategy and management decisions of the Group by increasing risk transparency, preventing risk transfer between subsidiaries and preemptive response to rapidly changing financial environments. Credit risk, market risk, operational risk, interest rate risk, insurance risk, liquidity risk, credit concentration risk, Strategic risk, reputational risk and foreign exchange settlement risk are recognized as the Group’s significant risks and measured and managed by quantifying them in the form of internal capital or Value at Risk (“VaR”) using statistical methods.

4.1.2 Risk management organization

4.1.2.1 Risk Management Committee

The Risk Management Committee, as the ultimate decision-making body, deals with risk-related issues, such as establishing risk management strategies in accordance with the strategic direction determined by the Board of Directors, determining the appropriate level of risk appetite, reviewing the level of risk and the status of risk management activities, approving the application of risk management systems, methodologies, and major improvements, and establishing and approving risk management policies and procedures to timely recognize, measure, monitor, and control risks arising from various transactions by the Group.

4.1.2.2 Risk Management Council

The Risk Management Council is responsible for consulting on matters delegated by the Risk Management Committee and requests for review by the Management Executive Committee, consulting on details of each subsidiary’s risk management policies and procedures, monitoring the Group’s risk management status, and establishing and implementing necessary measures.

4.1.2.3 Risk Management Department

The Risk Management Department performs the Group’s risk management detailed policies, procedures, and business processes, and is responsible for calculating the Group’s risk-weighted assets, monitoring and managing internal capital limits.

4.2 Credit Risk

4.2.1 Overview of credit risk

Credit risk is the risk of loss from the portfolio of assets held due to the counterparty’s default, breach of contract, and deterioration of credit quality. For risk management purposes, the Group manages all factors of credit risk exposure, such as default risk of individual borrowers, country risk, and risk of specific sectors in an integrated way.

14

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

4.2.2 Credit risk management

The Group measures the expected loss and internal capital for the assets subject to credit risk management, including on-balance and off-balance assets, and uses them as management indicators. The Group allocates and manages credit risk internal capital limits.

In addition, to prevent excessive concentration of exposures by borrower and industry, the total exposure limit at the Group level is introduced, applied, and managed to control the credit concentration risk.

All of the Kookmin Bank’s loan customers (individuals and corporates) are assigned a credit rating and managed by a comprehensive internal credit evaluation system. For individuals, the credit rating is evaluated by utilizing personal information, income and job information, asset information, and bank transaction information. For corporates, the credit rating is evaluated by analyzing and utilizing financial and non-financial information which measures current and future corporate value and ability to repay the debt. Also, the extent to which corporates have the ability to meet debt obligations is comprehensively considered.

The credit rating, once assigned, serves as the fundamental instrument in Kookmin Bank’s credit risk management, and is applied in a wide range of credit risk management processes, including credit approval, credit limit management, loan pricing, and assessment of allowances for credit losses. For corporates, Kookmin Bank conducts a regular credit evaluation at least once a year, and the review and supervision departments regularly validate the adequacy of credit ratings to manage credit risks.

KB Kookmin Card Co., Ltd.‘s credit scoring system is divided into Application Scoring System (“ASS”) and Behavior Scoring System (“BSS”). For applications that meet the eligibility criteria for card issuance, the card will be issued only if the ASS credit rating is above the standard. KB Kookmin Card Co., Ltd.‘s internal information, external information from the credit bureau company and others, and personal information on the application are used to calculate the ASS credit rating. The BSS, which is recalculated on a weekly basis, predicts the delinquency probability of cardholders, and utilizes it to monitor cardholders and portfolio risk.

In order to establish a credit risk management system, the Group manages credit risk by forming a separate risk management organization. In particular, independently of the Sales Group, the Credit Management & Analysis Group of Kookmin Bank, a subsidiary, is in charge of loan policy, loan system, credit rating, credit analysis, follow-up management, and corporate restructuring. The Risk Management Group of Kookmin Bank is responsible for establishing policies on credit risk management, measuring and limiting internal capital of credit risk, setting credit limits, credit review, and verification of credit rating models.

15

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

4.2.3 Maximum exposure to credit risk

The Group’s maximum exposures to credit risk without consideration of collateral values in relation to financial instruments other than equity securities as of September 30, 2025 and December 31, 2024, are as follows:

(In millions of Korean won) September 30, 2025 December 31, 2024
Financial assets
Due from financial institutions measured at amortized cost * ~~W~~ 22,711,250 ~~W~~ 27,790,121
Financial assets at fair value through profit or loss:
Due from financial institutions measured at fair value through profit or loss 367,442 218,357
Securities measured at fair value through profit or loss 85,738,862 73,768,636
Loans measured at fair value through profit or loss 899,906 1,187,763
Derivatives 7,104,334 11,730,767
Loans measured at amortized cost * 486,519,741 472,071,840
Financial investments:
Securities measured at fair value through other comprehensive income 91,882,354 88,735,996
Securities measured at amortized cost * 34,135,823 37,113,552
Loans measured at fair value through other comprehensive income 1,639,882 1,446,628
Other financial assets * 33,342,438 14,404,227
764,342,032 728,467,887
Off-balance sheet items
Acceptances and guarantees contracts 14,790,953 16,250,243
Financial guarantee contracts 5,244,693 6,674,740
Commitments 213,671,114 212,695,995
233,706,760 235,620,978
~~W~~ 998,048,792 ~~W~~ 964,088,865
* After netting of allowance
--- ---

4.2.4 Credit risk of loans

The Group maintains allowances for loan losses associated with credit risk of loans to manage its credit risk.

The Group assesses expected credit losses and recognizes loss allowances of financial assets at amortized cost and financial assets at fair value through other comprehensive income. Financial assets at fair value through profit or loss are excluded. Expected credit losses are a probability-weighted estimate of possible credit losses occurring in a certain range by reflecting reasonable and supportable information that is reasonably available at the end of the reporting period without undue cost or effort, including information about past events, current conditions, and forecasts of future economic conditions. The Group measures the expected credit losses of loans classified as financial assets at amortized cost, by deducting allowances for credit losses. The expected credit losses of loans classified as financial assets at fair value through other comprehensive income are presented in other comprehensive income in the consolidated financial statements.

16

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

4.2.4.1 Credit risk exposure

Credit qualities of loans as of September 30, 2025 and December 31, 2024, are as follows:

(In millions of Korean won)

September 30, 2025
12-monthexpected creditlosses Lifetime expected credit losses Not applyingexpectedcredit losses Total
Not impaired Impaired
Loans measured at amortized cost *
Corporate
Grade 1 ~~W~~ 148,260,570 ~~W~~ 10,377,273 ~~W~~ 2,258 ~~W~~ — ~~W~~ 158,640,101
Grade 2 74,910,440 12,221,356 8,065 — 87,139,861
Grade 3 3,994,158 5,533,663 20,890 — 9,548,711
Grade 4 828,540 1,978,371 37,288 — 2,844,199
Grade 5 22,484 670,547 3,017,029 — 3,710,060
228,016,192 30,781,210 3,085,530 — 261,882,932
Retail
Grade 1 180,611,901 5,423,248 4,168 — 186,039,317
Grade 2 7,546,759 4,416,780 35,046 — 11,998,585
Grade 3 4,211,630 1,495,211 25,228 — 5,732,069
Grade 4 384,564 821,837 68,774 — 1,275,175
Grade 5 54,187 850,282 1,254,171 — 2,158,640
192,809,041 13,007,358 1,387,387 — 207,203,786
Credit card
Grade 1 12,111,685 193,262 — — 12,304,947
Grade 2 5,135,358 568,889 — — 5,704,247
Grade 3 2,318,466 1,543,144 — — 3,861,610
Grade 4 11,894 418,782 — — 430,676
Grade 5 1,234 300,772 376,966 — 678,972
19,578,637 3,024,849 376,966 — 22,980,452
440,403,870 46,813,417 4,849,883 — 492,067,170
Loans measured at fair value through other comprehensive income
Corporate
Grade 1 1,590,746 — — — 1,590,746
Grade 2 49,136 — — — 49,136
Grade 3 — — — — —
Grade 4 — — — — —
Grade 5 — — — — —
1,639,882 — — — 1,639,882
1,639,882 — — — 1,639,882
~~W~~ 442,043,752 ~~W~~ 46,813,417 ~~W~~ 4,849,883 ~~W~~ — ~~W~~ 493,707,052

17

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

4.2.4.1 Credit risk exposure (cont’d)

(In millions of Korean won)

December 31, 2024
12-monthexpected creditlosses Lifetime expected credit losses Not applyingexpectedcredit losses Total
Not impaired Impaired
Loans measured at amortized cost *
Corporate
Grade 1 ~~W~~ 145,582,892 ~~W~~ 7,629,290 ~~W~~ 2,896 ~~W~~ — ~~W~~ 153,215,078
Grade 2 74,005,609 11,446,162 12,845 — 85,464,616
Grade 3 3,757,237 5,195,235 14,777 — 8,967,249
Grade 4 861,581 1,091,261 28,368 — 1,981,210
Grade 5 18,395 691,118 3,066,032 — 3,775,545
224,225,714 26,053,066 3,124,918 — 253,403,698
Retail
Grade 1 175,229,905 4,814,560 6,804 — 180,051,269
Grade 2 8,048,905 4,071,783 39,224 — 12,159,912
Grade 3 4,213,155 1,546,848 33,207 — 5,793,210
Grade 4 315,926 368,863 34,997 — 719,786
Grade 5 49,595 867,276 1,182,000 — 2,098,871
187,857,486 11,669,330 1,296,232 — 200,823,048
Credit card
Grade 1 11,554,106 195,328 — — 11,749,434
Grade 2 5,528,025 584,962 — — 6,112,987
Grade 3 2,575,397 1,640,995 — — 4,216,392
Grade 4 12,202 476,827 — — 489,029
Grade 5 1,068 320,083 589,481 — 910,632
19,670,798 3,218,195 589,481 — 23,478,474
431,753,998 40,940,591 5,010,631 — 477,705,220
Loans measured at fair value through other comprehensive income
Corporate
Grade 1 1,402,334 — — — 1,402,334
Grade 2 44,294 — — — 44,294
Grade 3 — — — — —
Grade 4 — — — — —
Grade 5 — — — — —
1,446,628 — — — 1,446,628
1,446,628 — — — 1,446,628
~~W~~ 433,200,626 ~~W~~ 40,940,591 ~~W~~ 5,010,631 ~~W~~ — ~~W~~ 479,151,848
* Before netting of allowance
--- ---

18

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

4.2.4.1 Credit risk exposure (cont’d)

Credit qualities of loans graded according to internal credit ratings as of September 30, 2025 and December 31, 2024, are as follows:

Range of probability of default (%) Retail Corporate
Grade 1 0.0 ~ 1.0 1 ~ 5 grade AAA ~ BBB+
Grade 2 1.0 ~ 5.0 6 ~ 8 grade BBB ~ BB
Grade 3 5.0 ~ 15.0 9 ~ 10 grade BB- ~ B
Grade 4 15.0 ~ 30.0 11 grade B- ~ CCC
Grade 5 30.0 ~ 12 grade or under CC or under

4.2.4.2 Quantification of the extent to which collateral and other credit enhancements mitigate credit risk of loans as of September 30, 2025 and December 31, 2024, are as follows:

(In millions of Korean won) September 30, 2025
12-monthexpected creditlosses Lifetime expected credit losses Total
Not impaired Impaired
Guarantees ~~W~~ 117,928,830 ~~W~~ 13,487,235 ~~W~~ 431,936 ~~W~~ 131,848,001
Deposits and savings 3,044,131 180,111 8,266 3,232,508
Property and equipment 15,166,658 986,786 230,660 16,384,104
Real estate 221,370,036 22,858,675 2,046,019 246,274,730
~~W~~ 357,509,655 ~~W~~ 37,512,807 ~~W~~ 2,716,881 ~~W~~ 397,739,343
(In millions of Korean won) December 31, 2024
--- --- --- --- --- --- --- --- --- --- ---
12-monthexpected creditlosses Lifetime expected credit losses Total
Not impaired Impaired
Guarantees ~~W~~ 120,868,541 ~~W~~ 8,349,217 ~~W~~ 498,290 ~~W~~ 129,716,048
Deposits and savings 2,792,768 127,130 11,704 2,931,602
Property and equipment 15,498,262 1,071,833 227,196 16,797,291
Real estate 214,770,163 21,195,798 2,167,580 238,133,541
~~W~~ 353,929,734 ~~W~~ 30,743,978 ~~W~~ 2,904,770 ~~W~~ 387,578,482

19

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

4.2.5 Credit risk of securities

Credit qualities of securities exposed to credit risk other than equity securities among financial investments as of September 30, 2025 and December 31, 2024, are as follows:

(In millions of Korean won)

September 30, 2025
12-monthexpected creditlosses Lifetime expected credit losses Not applyingexpected creditlosses Total
Not impaired Impaired
Securities measured at amortized cost *
Grade 1 ~~W~~ 30,652,953 ~~W~~ — ~~W~~ — ~~W~~ — ~~W~~ 30,652,953
Grade 2 3,492,507 — — — 3,492,507
Grade 3 7,013 — — — 7,013
Grade 4 — — — — —
Grade 5 — — — — —
34,152,473 — — — 34,152,473
Securities measured at fair value through other comprehensive income
Grade 1 85,887,569 — — — 85,887,569
Grade 2 5,994,785 — — — 5,994,785
Grade 3 — — — — —
Grade 4 — — — — —
Grade 5 — — — — —
91,882,354 — — — 91,882,354
~~W~~ 126,034,827 ~~W~~ — ~~W~~ — ~~W~~ — ~~W~~ 126,034,827

(In millions of Korean won)

December 31, 2024
12-monthexpected creditlosses Lifetime expected credit losses Not applyingexpected creditlosses Total
Not impaired Impaired
Securities measured at amortized cost *
Grade 1 ~~W~~ 33,733,935 ~~W~~ — ~~W~~ — ~~W~~ — ~~W~~ 33,733,935
Grade 2 3,396,100 — — — 3,396,100
Grade 3 913 — — — 913
Grade 4 — — — — —
Grade 5 — — — — —
37,130,948 — — — 37,130,948
Securities measured at fair value through other comprehensive income
Grade 1 81,797,910 — — — 81,797,910
Grade 2 6,933,807 — — — 6,933,807
Grade 3 4,279 — — — 4,279
Grade 4 — — — — —
Grade 5 — — — — —
88,735,996 — — — 88,735,996
~~W~~ 125,866,944 ~~W~~ — ~~W~~ — ~~W~~ — ~~W~~ 125,866,944
* Before netting of allowance
--- ---

20

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

4.2.5 Credit risk of securities (cont’d)

Credit qualities of securities other than equity securities, according to the credit ratings by external credit rating agencies as of September 30, 2025 and December 31, 2024 are as follows:

Credit<br><br><br>quality Domestic Foreign
KIS NICE P&I KAP FnPricing Inc. S&P Fitch-IBCA Moody’s
Grade 1 AA0 to AAA AA0 to AAA AA0 to AAA AA0 to AAA A- to AAA A- to AAA A3 to Aaa
Grade 2 A- to AA- A- to AA- A- to AA- A- to AA- BBB- to BBB+ BBB- to BBB+ Baa3 to Baa1
Grade 3 BBB0 to BBB+ BBB0 to BBB+ BBB0 to BBB+ BBB0 to BBB+ BB to BB+ BB to BB+ Ba2 to Ba1
Grade 4 BB0 to BBB- BB0 to BBB- BB0 to BBB- BB0 to BBB- B+ to BB- B+ to BB- B1 to Ba3
Grade 5 BB- or under BB- or under BB- or under BB- or under B or under B or under B2 or under

Credit qualities of debt securities denominated in Korean won are based on the lowest credit rating by the domestic credit rating agencies above, and those denominated in foreign currencies are based on the lowest credit rating by the foreign credit rating agencies above.

4.2.6 Credit risk of due from financial institutions

Credit qualities of due from financial institutions as of September 30, 2025 and December 31, 2024, are as follows:

(In millions of Korean won)

September 30, 2025
12-monthexpected creditlosses Lifetime expected credit losses Not applyingexpected creditlosses Total
Not impaired Impaired
Due from financial institutions measured at amortized cost *
Grade 1 ~~W~~ 20,867,049 ~~W~~ — ~~W~~ — ~~W~~ — ~~W~~ 20,867,049
Grade 2 904,314 — — — 904,314
Grade 3 27,985 — — — 27,985
Grade 4 38 — — — 38
Grade 5 913,523 — — — 913,523
~~W~~ 22,712,909 ~~W~~ — ~~W~~ — ~~W~~ — ~~W~~ 22,712,909

(In millions of Korean won)

December 31, 2024
12-monthexpected creditlosses Lifetime expected credit losses Not applyingexpected creditlosses Total
Not impaired Impaired
Due from financial institutions measured at amortized cost *
Grade 1 ~~W~~ 26,483,963 ~~W~~ — ~~W~~ — ~~W~~ — ~~W~~ 26,483,963
Grade 2 583,640 — — — 583,640
Grade 3 62,223 — — — 62,223
Grade 4 18 — — — 18
Grade 5 661,849 — — — 661,849
~~W~~ 27,791,693 ~~W~~ — ~~W~~ — ~~W~~ — ~~W~~ 27,791,693
* Before netting of allowance
--- ---

The classification criteria of the credit qualities of due from financial institutions as of September 30, 2025 and December 31, 2024, are the same as the criteria for securities other than equity securities.

21

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

4.2.7 Credit risk concentration analysis

4.2.7.1 Classifications of corporate loans by industry as of September 30, 2025 and December 31, 2024, are as follows:

(In millions of Korean won)

September 30, 2025
Loans % Allowances Carrying amount
Financial institutions ~~W~~ 31,069,657 11.75 ~~W~~ (304,941 ) ~~W~~ 30,764,716
Manufacturing 57,818,494 21.87 (565,555 ) 57,252,939
Service 117,404,904 44.41 (1,172,973 ) 116,231,931
Wholesale and retail 31,737,741 12.00 (538,505 ) 31,199,236
Construction 6,961,116 2.63 (255,048 ) 6,706,068
Public sector 2,683,019 1.01 (56,928 ) 2,626,091
Others 16,747,789 6.33 (309,924 ) 16,437,865
~~W~~ 264,422,720 100.00 ~~W~~ (3,203,874 ) ~~W~~ 261,218,846

(In millions of Korean won)

December 31, 2024
Loans % Allowances Carrying amount
Financial institutions ~~W~~ 29,395,390 11.48 ~~W~~ (258,612 ) ~~W~~ 29,136,778
Manufacturing 55,635,406 21.73 (602,712 ) 55,032,694
Service 113,938,671 44.50 (1,132,799 ) 112,805,872
Wholesale and retail 31,112,210 12.15 (552,209 ) 30,560,001
Construction 6,782,310 2.65 (279,959 ) 6,502,351
Public sector 2,460,655 0.96 (66,475 ) 2,394,180
Others 16,713,448 6.53 (276,057 ) 16,437,391
~~W~~ 256,038,090 100.00 ~~W~~ (3,168,823 ) ~~W~~ 252,869,267

4.2.7.2 Classifications of retail loans and credit card receivables as of September 30, 2025 and December 31, 2024, are as follows:

(In millions of Korean won)

September 30, 2025
Loans % Allowances Carrying amount
Housing loan ~~W~~ 110,913,322 48.18 ~~W~~ (301,268 ) ~~W~~ 110,612,054
General loan 96,290,464 41.84 (1,283,736 ) 95,006,728
Credit card 22,980,452 9.98 (758,551 ) 22,221,901
~~W~~ 230,184,238 100.00 ~~W~~ (2,343,555 ) ~~W~~ 227,840,683

(In millions of Korean won)

December 31, 2024
Loans % Allowances Carrying amount
Housing loan ~~W~~ 104,273,035 46.49 ~~W~~ (283,861 ) ~~W~~ 103,989,174
General loan 96,550,013 43.04 (1,303,956 ) 95,246,057
Credit card 23,478,474 10.47 (876,740 ) 22,601,734
~~W~~ 224,301,522 100.00 ~~W~~ (2,464,557 ) ~~W~~ 221,836,965

22

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

4.2.7.3 Classifications of due from financial institutions, securities other than equity securities, and derivative financial assets by industry as of September 30, 2025 and December 31, 2024, are as follows:

(In millions of Korean won) September 30, 2025
Amount % Allowances Carryingamount
Due from financial institutions measured at amortized cost
Government and government funded institutions ~~W~~ 264,368 1.16 ~~W~~ — ~~W~~ 264,368
Finance and insurance 22,448,538 98.84 (1,659 ) 22,446,879
Others 3 — — 3
22,712,909 100.00 (1,659 ) 22,711,250
Due from financial institutions measured at fair value through profit orloss
Finance and insurance 367,442 100.00 — 367,442
367,442 100.00 — 367,442
Securities measured at fair value through profit or loss
Government and government funded institutions 30,370,457 35.43 — 30,370,457
Finance and insurance 41,020,348 47.84 — 41,020,348
Others 14,348,057 16.73 — 14,348,057
85,738,862 100.00 — 85,738,862
Derivative financial assets
Government and government funded institutions 13,624 0.19 — 13,624
Finance and insurance 6,425,922 90.45 — 6,425,922
Others 664,788 9.36 — 664,788
7,104,334 100.00 — 7,104,334
Securities measured at fair value through other comprehensive income
Government and government funded institutions 55,191,271 60.07 — 55,191,271
Finance and insurance 24,754,729 26.94 — 24,754,729
Others 11,936,354 12.99 — 11,936,354
91,882,354 100.00 — 91,882,354
Securities measured at amortized cost
Government and government funded institutions 14,237,048 41.68 (1,182 ) 14,235,866
Finance and insurance 19,627,221 57.48 (15,084 ) 19,612,137
Others 288,204 0.84 (384 ) 287,820
34,152,473 100.00 (16,650 ) 34,135,823
~~W~~ 241,958,374 ~~W~~ (18,309 ) ~~W~~ 241,940,065

23

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

4.2.7.3 Classifications of due from financial institutions, securities other than equity securities, and derivative financial assets by industry as of September 30, 2025 and December 31, 2024, are as follows: (cont’d)

(In millions of Korean won) December 31, 2024
Amount % Allowances Carryingamount
Due from financial institutions measured at amortized cost
Finance and insurance ~~W~~ 27,791,693 100.00 ~~W~~ (1,572 ) ~~W~~ 27,790,121
27,791,693 100.00 (1,572 ) 27,790,121
Due from financial institutions measured at fair value through profit orloss
Finance and insurance 59,838 100.00 — 59,838
59,838 100.00 — 59,838
Securities measured at fair value through profit or loss
Government and government funded institutions 25,543,224 34.63 — 25,543,224
Finance and insurance 35,810,087 48.54 — 35,810,087
Others 12,415,325 16.83 — 12,415,325
73,768,636 100.00 — 73,768,636
Derivative financial assets
Government and government funded institutions 51,376 0.44 — 51,376
Finance and insurance 10,398,642 88.64 — 10,398,642
Others 1,280,749 10.92 — 1,280,749
11,730,767 100.00 — 11,730,767
Securities measured at fair value through other comprehensive income
Government and government funded institutions 49,417,230 55.69 — 49,417,230
Finance and insurance 27,374,090 30.85 — 27,374,090
Others 11,944,676 13.46 — 11,944,676
88,735,996 100.00 — 88,735,996
Securities measured at amortized cost
Government and government funded institutions 15,499,014 41.75 (787 ) 15,498,227
Finance and insurance 21,411,994 57.66 (16,228 ) 21,395,766
Others 219,940 0.59 (381 ) 219,559
37,130,948 100.00 (17,396 ) 37,113,552
~~W~~ 239,217,878 ~~W~~ (18,968 ) ~~W~~ 239,198,910

Due from financial institutions, financial instruments at fair value through profit or loss linked to gold price, and derivative financial instruments are mostly related to the finance and insurance industry with high credit ratings.

24

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

4.3 Liquidity Risk

4.3.1 Overview of liquidity risk

Liquidity risk is a risk that the Group becomes insolvent due to the mismatch between the inflow and outflow of funds, unexpected cash outflows, or a risk of loss due to financing funds at a high interest rate or disposing of securities at an unfavorable price due to lack of available funds. The Group manages its liquidity risk through analysis of the contractual maturity of interest-bearing assets and liabilities, assets and liabilities related to the other inflows and outflows of funds, and off-balance sheet items related to the inflows and outflows of funds such as currency derivative instruments and others.

4.3.2 Liquidity risk management and indicator

The liquidity risk is managed by risk management policies and liquidity risk management guidelines set forth in these policies that apply to all risk management policies and procedures that may arise throughout the overall business of the Group.

The Group calculates and manages liquidity ratio and others for all transactions and off-balance transactions related to liquidity, that affect the cash flows in Korean won and foreign currency funds raised and operated for the management of liquidity risks and periodically reports them to the Risk Management Committee.

4.3.3 Analysis of remaining contractual maturity of financial liabilities

The cash flows disclosed in the maturity analysis are undiscounted contractual amounts including principal and future interest payments; as such, amounts in the table below do not match with those in the consolidated statements of financial position which are based on discounted cash flows. The future interest payments for floating-rate liabilities are calculated on the assumption that the current interest rate is the same until maturity.

25

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

4.3.3.1 Remaining contractual maturity of financial liabilities other than derivatives held for cash flow hedge, and off-balance sheet items as of September 30, 2025 and December 31 2024, are as follows:

(In millions of Korean won) September 30, 2025
On demand Up to 1 month 1-3 months 3-12 months 1-5 years Over 5 years Total
Financial liabilities
Financial liabilities at fair value through profit or loss ^1^ ~~W~~ 2,787,170 ~~W~~ — ~~W~~ — ~~W~~ — ~~W~~ — ~~W~~ — ~~W~~ 2,787,170
Financial liabilities designated at fair value through profit or loss ^1^ 7,557,141 — — — — — 7,557,141
Derivatives held for trading ^1^ 6,553,352 — — — — — 6,553,352
Derivatives held for hedging ^2^ 42,083 6,062 20,866 48,603 27,502 (454 ) 144,662
Deposits ^3^ 197,924,327 41,669,866 67,283,893 120,444,334 28,448,635 1,245,972 457,017,027
Borrowings 12,164,491 19,898,358 8,442,329 19,106,202 9,120,688 1,185,227 69,917,295
Debentures 920 3,840,854 5,545,546 25,559,623 43,894,032 3,087,212 81,928,187
Lease liabilities 1,159 33,175 62,279 235,757 619,097 54,467 1,005,934
Other financial liabilities 131,420 44,374,710 209,566 722,884 1,146,508 185,974 46,771,062
~~W~~ 227,162,063 ~~W~~ 109,823,025 ~~W~~ 81,564,479 ~~W~~ 166,117,403 ~~W~~ 83,256,462 ~~W~~ 5,758,398 ~~W~~ 673,681,830
Off-balance sheet items
Commitments ^4^ ~~W~~ 213,671,114 ~~W~~ — ~~W~~ — ~~W~~ — ~~W~~ — ~~W~~ — ~~W~~ 213,671,114
Acceptances and guarantees contracts 14,790,953 — — — — — 14,790,953
Financial guarantee contracts ^5^ 5,244,693 — — — — — 5,244,693
~~W~~ 233,706,760 ~~W~~ — ~~W~~ — ~~W~~ — ~~W~~ — ~~W~~ — ~~W~~ 233,706,760

26

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

4.3.3.1 Remaining contractual maturity of financial liabilities other than derivatives held for cash flow hedge, and off-balance sheet items as of September 30, 2025 and December 31 2024, are as follows: (cont’d)

(In millions of Korean won) December 31, 2024
On demand Up to 1 month 1-3 months 3-12 months 1-5 years Over 5 years Total
Financial liabilities
Financial liabilities at fair value through profit or loss ^1^ ~~W~~ 2,717,732 ~~W~~ — ~~W~~ — ~~W~~ — ~~W~~ — ~~W~~ — ~~W~~ 2,717,732
Financial liabilities designated at fair value through profit or loss ^1^ 8,002,499 — — — — — 8,002,499
Derivatives held for trading ^1^ 11,409,695 — — — — — 11,409,695
Derivatives held for hedging ^2^ — 7,538 12,221 85,101 64,760 (3,206 ) 166,414
Deposits ^3^ 181,232,114 41,663,882 57,643,486 137,677,588 24,822,029 1,437,036 444,476,135
Borrowings 10,613,810 17,508,577 7,562,405 22,180,471 10,360,622 1,263,467 69,489,352
Debentures 1,113 4,138,143 6,683,638 21,458,905 42,772,744 5,955,515 81,010,058
Lease liabilities 196 30,683 56,903 227,390 606,547 122,502 1,044,221
Other financial liabilities 108,979 22,138,250 147,660 331,842 1,174,845 171,549 24,073,125
~~W~~ 214,086,138 ~~W~~ 85,487,073 ~~W~~ 72,106,313 ~~W~~ 181,961,297 ~~W~~ 79,801,547 ~~W~~ 8,946,863 ~~W~~ 642,389,231
Off-balance sheet items
Commitments ^4^ ~~W~~ 212,695,995 ~~W~~ — ~~W~~ — ~~W~~ — ~~W~~ — ~~W~~ — ~~W~~ 212,695,995
Acceptances and guarantees contracts 16,250,243 — — — — — 16,250,243
Financial guarantee contracts ^5^ 6,674,740 — — — — — 6,674,740
~~W~~ 235,620,978 ~~W~~ — ~~W~~ — ~~W~~ — ~~W~~ — ~~W~~ — ~~W~~ 235,620,978
^1^ Financial liabilities measured or designated at fair value through profit or loss and derivatives held for<br>trading are not managed by contractual maturity because they are expected to be traded or redeemed before maturity. Therefore, the carrying amounts of those financial instruments are included in the ‘On demand’ category.<br>
--- ---
^2^ Cash flows of derivatives held for hedging are shown at net amount of cash inflows and outflows by remaining<br>contractual maturity.
--- ---
^3^ Deposits that are contractually repayable on demand or on short notice are included in the ‘On<br>demand’ category.
--- ---
^4^ Commitments are included in the ‘On demand’ category because payments can be requested at any time.<br>
--- ---
^5^ Cash flows under financial guarantee contracts are classified based on the earliest period that the contract<br>can be executed.
--- ---

27

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

4.4 Market Risk

4.4.1 Concept

Market risk refers to risks that can result in losses due to changes in market factors such as interest rate, stock price, and foreign exchange rate, etc., which arise from securities, derivatives, and others. The most significant risks associated with trading positions are interest rate risk, currency risk, and additional risks include stock price risk. The non-trading position is also exposed to interest rate risk. The Group manages the market risks by dividing them into those arising from the trading position and those arising from the non-trading position.

4.4.2 Risk management

The Group sets and monitors internal capital limits for market risk and interest rate risk to manage the risks of trading and non-trading positions. In order to manage market risk efficiently, the Group maintains risk management systems and procedures such as trading policies and procedures, market risk management guidelines for trading positions, and interest rate risk management guidelines for non-trading positions. The entire process is carried out through consultation with the Risk Management Council and approval by the Risk Management Committee of the Group. However, insurance companies that are engaged in the insurance business are not subject to these guidelines and are monitored by setting internal capital limits for market risk and interest rate risk based on K-ICS.

In the case of Kookmin Bank, a major subsidiary, the Risk Management Council establishes and enforces overall market risk management policies for market risk management and decides to establish position limits, loss limits, VaR limits, and approves non-standard new products. In addition, the Market Risk Management Subcommittee, chaired by Chief Risk Officer (“CRO”), is a practical decision-making body for market risk management and determines position limits, loss limits, VaR limits, sensitivity limits, and scenario loss limits for each department of the business group.

Kookmin Bank’s Asset-Liability Management Committee (“ALCO”) determines interest rate and commission operating standards and Asset Liability Management (“ALM”) operation policies and enacts and revises relevant guidelines. The Risk Management Committee and the Risk Management Council monitor the establishment and enforcement of ALM risk management policies and enact and revise ALM risk management guidelines. Interest rate risk limits are set based on future asset and liability positions and expected interest rate volatility, which reflect annual business plans. The Financial Planning Department and the Risk Management Department regularly measure and monitor interest rate risk and report the status and limit of interest rate risk including changes in Economic Value of Equity (“ΔEVE”), changes in Net Interest Income (“ΔNII”), and duration gap to the ALCO and the Risk Management Council on a monthly basis, and to the Risk Management Committee on a quarterly basis. To ensure the adequacy of interest rate risk and liquidity risk management, the Risk Management Department assigns the limits, monitors and reviews the procedures and tasks of ALM operations conducted by the ALM department, and reports related matters to the management independently.

4.5 Operational Risk

4.5.1 Concept

Operational risk of the Group refers to the risk of loss that may occur due to improper or incorrect internal procedures, personnel, systems or external events. Operational risk management plays a role in enhancing the stability and soundness of financial institutions by managing the appropriate level of capital and supplementing the internal control system.

28

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

4.5.2 Risk management

The purpose of operational risk management is not only to comply with supervisory and regulatory requirements, but also to spread risk management culture, strengthen internal control, improve processes, and provide timely feedback to management and all employees. The Parent Company manages the Group’s overall operational risk, and each subsidiary establishes and implements operational risk management policies according to its own risk level and implements and operates related systems. The Group Risk Management Committee establishes and allocates risk capital of operational risk for each subsidiary, and subsidiaries manage operational risks at an appropriate level within the allocated risk capital.

5. Segment Information

5.1 Overall Segment Information and Business Segments

The Group classifies reporting segments based on the nature of the products and services provided, the type of customer, and the Group’s management organization.

Banking business Corporate banking Loans, deposit products, and other related financial services to large, small and medium-sized<br>enterprises and SOHOs
Retail banking Loans, deposit products, and other related financial services to individuals and<br>households
Other banking services Trading activities in securities and derivatives, funding, and other supporting<br>activities
Securities business Investment banking, brokerage services, and other supporting activities
Non-life insurance business Non-life insurance and other supporting activities
Credit card business Credit sale, cash advance, card loan, and other supporting activities
Life insurance business Life insurance and other supporting activities

29

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

5.1 Overall Segment Information and Business Segments (cont’d)

Financial information by business segments for the nine-month periods ended September 30, 2025 and 2024, are as follows:

(In millions of Korean won)
2025
Banking business Securities Non-lifeinsurance Credit card Lifeinsurance Others Consolidationadjustments Total
Corporatebanking Retailbanking Otherbankingservices Sub-total
Net operating revenues (expenses) from external customers ~~W~~ 3,449,313 ~~W~~ 2,928,660 ~~W~~ 1,974,115 ~~W~~ 8,352,088 ~~W~~ 1,619,567 ~~W~~ 1,060,705 ~~W~~ 1,440,697 ~~W~~ 304,854 ~~W~~ 666,002 ~~W~~ — ~~W~~ 13,443,913
Intersegment net operating revenues (expenses) 179,946 — (33,442 ) 146,504 (20,660 ) 98,536 (83,792 ) 40,823 449,119 (630,530 ) —
3,629,259 2,928,660 1,940,673 8,498,592 1,598,907 1,159,241 1,356,905 345,677 1,115,121 (630,530 ) 13,443,913
Net interest income (expenses) 4,394,080 2,653,418 839,893 7,887,391 489,171 (16,324 ) 1,217,697 (78,709 ) 445,599 (239,952 ) 9,704,873
Interest income 8,411,605 5,634,276 2,400,585 16,446,466 1,327,954 743,231 1,806,196 517,472 1,157,955 (64,731 ) 21,934,543
Interest expense (4,017,525 ) (2,980,858 ) (1,560,692 ) (8,559,075 ) (838,783 ) (759,555 ) (588,499 ) (596,181 ) (712,356 ) (175,221 ) (12,229,670 )
Net fee and commission income (expenses) 345,314 249,541 271,678 866,533 642,355 (28,716 ) 515,365 9,755 985,396 (38,307 ) 2,952,381
Fee and commission income 488,875 355,346 354,570 1,198,791 847,360 5,047 1,294,066 16,245 1,096,109 (261,596 ) 4,196,022
Fee and commission expense (143,561 ) (105,805 ) (82,892 ) (332,258 ) (205,005 ) (33,763 ) (778,701 ) (6,490 ) (110,713 ) 223,289 (1,243,641 )
Net insurance income — — — — — 751,437 5,204 358,312 — 58,129 1,173,082
Insurance income — — — — — 8,551,699 10,459 759,733 — (34,136 ) 9,287,755
Insurance expense — — — — — (7,800,262 ) (5,255 ) (401,421 ) — 92,265 (8,114,673 )
Net gains (losses) on financial instruments at fair value through profit or loss (18,829 ) — 761,906 743,077 383,141 412,425 1,299 824,146 370,482 (171,595 ) 2,562,975
Net other insurance finance income (expenses) — — — — — 3,486 — (696,203 ) — — (692,717 )
Net other operating income (expenses) (1,091,306 ) 25,701 67,196 (998,409 ) 84,240 36,933 (382,660 ) (71,624 ) (686,356 ) (238,805 ) (2,256,681 )

30

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

5.1 Overall Segment Information and Business Segments (cont’d)

(In millions of Korean won)
2025
Banking business Securities Non-lifeinsurance Credit card Lifeinsurance Others Consolidationadjustments Total
Corporatebanking Retailbanking Otherbankingservices Sub-total
General and administrative expenses ~~W~~ (1,371,304 ) ~~W~~ (1,304,503 ) ~~W~~ (597,078 ) ~~W~~ (3,272,885 ) ~~W~~ (795,268 ) ~~W~~ (111,979 ) ~~W~~ (432,110 ) ~~W~~ (116,596 ) ~~W~~ (373,341 ) ~~W~~ 94,455 ~~W~~ (5,007,724 )
Operating income (expenses) before provision for credit losses 2,257,955 1,624,157 1,343,595 5,225,707 803,639 1,047,262 924,795 229,081 741,780 (536,075 ) 8,436,189
Reversal (provision) of credit losses (530,689 ) (167,126 ) (8,706 ) (706,521 ) (141,305 ) (8,356 ) (547,841 ) (1,585 ) (270,265 ) 673 (1,675,200 )
Net operating income (expenses) 1,727,266 1,457,031 1,334,889 4,519,186 662,334 1,038,906 376,954 227,496 471,515 (535,402 ) 6,760,989
Share of profit (loss) of associates and joint ventures — — 8,166 8,166 (32,824 ) 2,319 813 (499 ) 6,103 31,596 15,674
Net other non-operating income (expenses) (8,452 ) — (28,722 ) (37,174 ) 38,828 2,159 (4,368 ) 6,177 156,173 (27,278 ) 134,517
Segment profit (loss) before income tax expense 1,718,814 1,457,031 1,314,333 4,490,178 668,338 1,043,384 373,399 233,174 633,791 (531,084 ) 6,911,180
Income tax benefit (expense) (441,371 ) (353,330 ) (350,309 ) (1,145,010 ) (170,010 ) (275,959 ) (91,740 ) (62,666 ) (98,420 ) 34,555 (1,809,250 )
Profit (loss) for the period ~~W~~ 1,277,443 ~~W~~ 1,103,701 ~~W~~ 964,024 ~~W~~ 3,345,168 ~~W~~ 498,328 ~~W~~ 767,425 ~~W~~ 281,659 ~~W~~ 170,508 ~~W~~ 535,371 ~~W~~ (496,529 ) ~~W~~ 5,101,930
Profit (loss) attributable to shareholders of the Parent Company 1,270,542 1,103,701 990,305 3,364,548 496,669 766,922 280,638 170,508 534,244 (491,796 ) 5,121,733
Profit (loss) attributable to non-controlling interests 6,901 — (26,281 ) (19,380 ) 1,659 503 1,021 — 1,127 (4,733 ) (19,803 )
Total assets * 244,360,466 181,339,678 157,074,563 582,774,707 75,785,814 43,474,860 30,481,956 36,173,123 67,858,932 (40,486,190 ) 796,063,202
Total liabilities * 218,834,406 215,598,036 108,727,459 543,159,901 68,770,172 37,854,787 24,922,900 33,312,677 28,523,675 (1,852,003 ) 734,692,109
* Assets and liabilities of the reporting segments are amounts before intersegment transactions.<br>
--- ---

31

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

5.1 Overall Segment Information and Business Segments (cont’d)

(In millions of Korean won)
2024
Banking business
Corporatebanking Retailbanking Otherbankingservices Sub-total Securities Non-lifeinsurance Credit card Lifeinsurance Others Consolidationadjustments Total
Net operating revenues (expenses) from external customers ~~W~~ 4,048,364 ~~W~~ 3,109,765 ~~W~~ 809,545 ~~W~~ 7,967,674 ~~W~~ 1,420,626 ~~W~~ 1,139,611 ~~W~~ 1,587,323 ~~W~~ 338,599 ~~W~~ 911,935 ~~W~~ — ~~W~~ 13,365,768
Intersegment net operating revenues (expenses) 99,197 — 200,222 299,419 41,339 (19,522 ) (56,828 ) 19,377 249,139 (532,924 ) —
4,147,561 3,109,765 1,009,767 8,267,093 1,461,965 1,120,089 1,530,495 357,976 1,161,074 (532,924 ) 13,365,768
Net interest income (expenses) 4,345,433 2,457,563 845,601 7,648,597 446,901 (39,921 ) 1,228,047 (109,020 ) 527,906 (118,727 ) 9,583,783
Interest income 9,116,422 5,816,676 2,518,290 17,451,388 1,325,861 666,286 1,824,633 477,954 1,195,617 (79,176 ) 22,862,563
Interest expense (4,770,989 ) (3,359,113 ) (1,672,689 ) (9,802,791 ) (878,960 ) (706,207 ) (596,586 ) (586,974 ) (667,711 ) (39,551 ) (13,278,780 )
Net fee and commission income (expenses) 312,743 190,569 331,428 834,740 551,502 (28,143 ) 583,253 5,928 939,186 (34,034 ) 2,852,432
Fee and commission income 449,474 297,656 409,059 1,156,189 723,441 6,135 1,363,405 12,039 1,067,903 (259,530 ) 4,069,582
Fee and commission expense (136,731 ) (107,087 ) (77,631 ) (321,449 ) (171,939 ) (34,278 ) (780,152 ) (6,111 ) (128,717 ) 225,496 (1,217,150 )
Net insurance income — — — — — 968,654 6,204 364,948 — 54,484 1,394,290
Insurance income — — — — — 7,778,028 13,509 726,599 — (27,531 ) 8,490,605
Insurance expense — — — — — (6,809,374 ) (7,305 ) (361,651 ) — 82,015 (7,096,315 )
Net gains (losses) on financial instruments at fair value through profit or loss 33,671 — 497,269 530,940 401,405 330,577 10,339 371,564 205,394 (377,486 ) 1,472,733
Net other insurance finance income (expenses) — — — — — (32,805 ) — (320,378 ) — — (353,183 )
Net other operating income (expenses) (544,286 ) 461,633 (664,531 ) (747,184 ) 62,157 (78,273 ) (297,348 ) 44,934 (511,412 ) (57,161 ) (1,584,287 )

32

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

5.1 Overall Segment Information and Business Segments (cont’d)

(In millions of Korean won)
2024
Banking business Securities Non-lifeinsurance Credit card Lifeinsurance Others Consolidationadjustments Total
Corporatebanking Retail<br>banking Otherbankingservices Sub-total
General and administrative expenses ~~W~~ (1,395,678 ) ~~W~~ (1,389,404 ) ~~W~~ (439,703 ) ~~W~~ (3,224,785 ) ~~W~~ (730,415 ) ~~W~~ (102,891 ) ~~W~~ (437,101 ) ~~W~~ (103,408 ) ~~W~~ (365,362 ) ~~W~~ 91,036 ~~W~~ (4,872,926 )
Operating income before provision for credit losses 2,751,883 1,720,361 570,064 5,042,308 731,550 1,017,198 1,093,394 254,568 795,712 (441,888 ) 8,492,842
Reversal (provision) of credit losses (436,904 ) (154,448 ) 1,193 (590,159 ) (1,699 ) 34 (614,892 ) (327 ) (280,283 ) 8,183 (1,479,143 )
Net operating income (expenses) 2,314,979 1,565,913 571,257 4,452,149 729,851 1,017,232 478,502 254,241 515,429 (433,705 ) 7,013,699
Share of profit (loss) of associates and joint ventures — — 7,318 7,318 (24,431 ) 1,654 864 (192 ) 2,440 13,004 657
Net other non-operating income (expenses) (54,650 ) — (831,518 ) (886,168 ) (698 ) (7,628 ) 12,991 7,256 (47,636 ) (33,155 ) (955,038 )
Segment profit (loss) before income tax expense 2,260,329 1,565,913 (252,943 ) 3,573,299 704,722 1,011,258 492,357 261,305 470,233 (453,856 ) 6,059,318
Income tax benefit (expense) (748,248 ) (413,401 ) 126,808 (1,034,841 ) (156,209 ) (270,601 ) (123,901 ) (67,129 ) (83,264 ) 45,405 (1,690,540 )
Profit (loss) for the period ~~W~~ 1,512,081 ~~W~~ 1,152,512 ~~W~~ (126,135 ) ~~W~~ 2,538,458 ~~W~~ 548,513 ~~W~~ 740,657 ~~W~~ 368,456 ~~W~~ 194,176 ~~W~~ 386,969 ~~W~~ (408,451 ) ~~W~~ 4,368,778
Profit (loss) attributable to shareholders of the Parent Company 1,499,338 1,152,512 (33,960 ) 2,617,890 546,790 740,172 370,383 194,176 385,106 (460,368 ) 4,394,149
Profit (loss) attributable to non-controlling interests 12,743 — (92,175 ) (79,432 ) 1,723 485 (1,927 ) — 1,863 51,917 (25,371 )
Total assets * 239,124,552 176,075,559 147,687,069 562,887,180 63,384,388 40,776,375 30,541,628 34,047,554 64,172,457 (37,964,050 ) 757,845,532
Total liabilities * 222,291,921 210,839,098 91,728,841 524,859,860 56,498,405 34,982,352 25,236,826 30,984,398 27,995,907 (2,527,397 ) 698,030,351
* Assets and liabilities of the reporting segments are amounts before intersegment transactions as of<br>December 31, 2024.
--- ---

33

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

5.2 Services and Geographical Segments

5.2.1 Services information

Net operating revenues from external customers by service for the nine-month periods ended September 30, 2025 and 2024, are as follows:

(In millions of Korean won)
2025 2024
Banking service ~~W~~ 8,352,088 ~~W~~ 7,967,674
Securities service 1,619,567 1,420,626
Non-life insurance service 1,060,705 1,139,611
Credit card service 1,440,697 1,587,323
Life insurance service 304,854 338,599
Others 666,002 911,935
~~W~~ 13,443,913 ~~W~~ 13,365,768

5.2.2 Geographical information

Geographical net operating revenues from external for the nine-month periods ended September 30, 2025 and 2024, and major non-current assets as of September 30, 2025 and December 31, 2024, are as follows:

(In millions of Korean won)
Net operating revenues<br>from external customers Major non-current assets
2025 2024 September 30,<br>2025 December 31,<br>2024
Domestic ~~W~~ 12,283,546 ~~W~~ 12,209,891 ~~W~~ 8,672,786 ~~W~~ 9,915,068
United States 54,002 110,915 32,389 35,576
New Zealand 1,157 9,841 655 829
China 113,776 146,111 23,174 22,271
Cambodia 530,368 426,354 95,445 101,879
United Kingdom 49,754 56,237 10,980 9,023
Indonesia 243,416 259,969 395,277 430,632
Others 167,894 146,450 31,091 35,746
Consolidation adjustments — — 541,563 564,851
~~W~~ 13,443,913 ~~W~~ 13,365,768 ~~W~~ 9,803,360 ~~W~~ 11,115,875

34

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

6. Financial Assets and Financial Liabilities

6.1 Classification and Fair Value of Financial Instruments

6.1.1 Carrying amount and fair value of financial assets and liabilities by category as of September 30, 2025 and December 31, 2024, are as follows:

(In millions of Korean won) September 30, 2025
Carrying amount Fair value
Financial assets
Cash and due from financial institutions ~~W~~ 25,270,758 ~~W~~ 25,270,758
Financial assets at fair value through profit or loss: 92,901,015 92,901,015
Due from financial institutions 66,191 66,191
Debt securities 85,738,862 85,738,862
Equity securities 5,894,805 5,894,805
Loans 899,906 899,906
Others 301,251 301,251
Derivatives held for trading 6,585,212 6,585,212
Derivatives held for hedging 519,122 519,122
Loans measured at amortized cost 486,519,741 488,595,476
Securities measured at amortized cost 34,135,823 33,790,544
Financial assets at fair value through other comprehensive income: 97,920,253 97,920,253
Debt securities 91,882,354 91,882,354
Equity securities 4,398,017 4,398,017
Loans 1,639,882 1,639,882
Other financial assets 33,342,438 33,342,438
~~W~~ 777,194,362 ~~W~~ 778,924,818
Financial liabilities
Financial liabilities at fair value through profit or loss ~~W~~ 2,787,170 ~~W~~ 2,787,170
Financial liabilities designated at fair value through profit or loss 7,557,141 7,557,141
Derivatives held for trading 6,553,352 6,553,352
Derivatives held for hedging 251,203 251,203
Deposits 448,711,993 449,054,955
Borrowings 68,790,018 68,800,344
Debentures 77,185,525 77,657,008
Other financial liabilities 57,725,427 57,725,427
~~W~~ 669,561,829 ~~W~~ 670,386,600

35

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

6.1.1 Carrying amount and fair value of financial assets and liabilities by category as of September 30, 2025 and December 31, 2024, are as follows: (cont’d)

(In millions of Korean won) December 31, 2024
Carrying amount Fair value
Financial assets
Cash and due from financial institutions ~~W~~ 29,869,111 ~~W~~ 29,869,335
Financial assets at fair value through profit or loss: 79,450,093 79,450,093
Due from financial institutions 59,838 59,838
Debt securities 73,768,636 73,768,636
Equity securities 4,275,337 4,275,337
Loans 1,187,763 1,187,763
Others 158,519 158,519
Derivatives held for trading 10,954,870 10,954,870
Derivatives held for hedging 775,897 775,897
Loans measured at amortized cost 472,071,840 473,234,273
Securities measured at amortized cost 37,113,552 36,572,012
Financial assets at fair value through other comprehensive income: 93,895,912 93,895,912
Debt securities 88,735,996 88,735,996
Equity securities 3,713,288 3,713,288
Loans 1,446,628 1,446,628
Other financial assets 14,404,227 14,404,227
~~W~~ 738,535,502 ~~W~~ 739,156,619
Financial liabilities
Financial liabilities at fair value through profit or loss ~~W~~ 2,717,732 ~~W~~ 2,717,732
Financial liabilities designated at fair value through profit or loss 8,002,499 8,002,499
Derivatives held for trading 11,409,695 11,409,695
Derivatives held for hedging 373,799 373,799
Deposits 435,687,897 435,991,820
Borrowings 68,077,012 68,046,196
Debentures 76,171,257 76,583,392
Other financial liabilities 33,594,883 33,594,883
~~W~~ 636,034,774 ~~W~~ 636,720,016

Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants. The Group discloses the fair value of each class of assets and liabilities in a way that permits it to be compared with its carrying amount at the end of each reporting period. The best evidence of fair value of financial instruments is a quoted price in an active market.

36

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

6.1.1 Carrying amount and fair value of financial assets and liabilities by category as of September 30, 2025 and December 31, 2024, are as follows: (cont’d)

Methods of determining fair value of financial instruments are as follows:

Cash and due from financial institutions Fair value of cash is same as carrying amount. Carrying amount of demand deposit and settlement deposit is a reasonable approximation of fair value because these financial instruments do not have a fixed maturity and are receivable<br>on demand. Fair value of general deposit is measured using Discounted Cash Flow (“DCF”) Model.
Securities Fair value of securities and others that are traded in an active market is determined using the quoted prices. If there is no quoted price, fair value is determined using external professional valuation institutions. The<br>institutions use one or more valuation techniques that are deemed appropriate considering the characteristics of the financial instruments among DCF Model, Free Cash Flow to Equity Model, Comparable Company Analysis, Dividend Discount Model, Risk<br>Adjusted Discount Rate Method, and Net Asset Value Method.
Loans Fair value of loans is determined using DCF Model discounting the expected cash flows, which are contractual cash flows adjusted by the expected prepayment rate, at an appropriate discount rate.
Derivatives and financial instruments at fair value through profit or loss Fair value of exchange traded derivatives is determined using quoted price in an active market, and fair value of OTC derivatives is determined using valuation techniques. The Group uses internally developed valuation models that<br>are widely used by market participants to determine fair value of plain vanilla OTC derivatives including options, interest rate swaps, and currency swaps, based on observable market parameters. However, some complex financial instruments are valued<br>using appropriate models developed from generally accepted market valuation models including Finite Difference Method (“FDM”), MonteCarlo Simulation, Black-Scholes Model, Hull-white Model, Closed Form, and Tree Model or valuation results<br>from independent external professional valuation institutions.
Deposits Carrying amount of demand deposits is a reasonable approximation of fair value because they do not have a fixed maturity and are payable on demand. Fair value of time deposits is determined using DCF Model discounting the expected<br>cash flows, which are contractual cash flows adjusted by the expected prepayment rate, at an appropriate discount rate.
Borrowings Carrying amount of overdrafts in foreign currency is a reasonable approximation of fair value because they do not have a fixed maturity and are payable on demand. Fair value of other borrowings is determined using DCF<br>Model.
Debentures Fair value is determined using valuation results of external professional valuation institutions, which are calculated using market inputs.
Other financial assets and other financial liabilities Carrying amount is a reasonable approximation of fair value because other financial assets and other financial liabilities are temporary accounts used for other various transactions and their maturities are relatively short or not<br>defined.

37

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

6.1.2 Fair value hierarchy

The Group believes that valuation techniques used for measuring the fair value of financial instruments are reasonable and that the fair value recognized in the consolidated statement of financial position is appropriate. However, the fair value of the financial instruments recognized in the consolidated statement of financial position may be different if other valuation techniques or assumptions are used. Additionally, as there are a variety of valuation techniques and assumptions used in measuring fair value, it may be difficult to reasonably compare the fair value with that of other financial institutions.

The Group classifies and discloses fair value of the financial instruments into the three fair value levels as follows:

Level 1: The fair values are based on quoted prices (unadjusted) in active markets for identical assets or liabilities that the entity can access at the measurement date.

Level 2: The fair values are based on inputs other than quoted prices included within Level 1 that are observable for the asset or liability, either directly or indirectly.

Level 3: The fair values are based on unobservable inputs for the asset or liability.

The fair value measurement is categorized in its entirety in the same level of the fair value hierarchy as the lowest level input that is significant to the entire measurement. If an observable input requires an adjustment using an unobservable input and that adjustment results in a significantly higher or lower fair value measurement, the resulting measurement would be categorized within Level 3 of the fair value hierarchy.

38

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

6.1.2.1 Fair value hierarchy of financial assets and liabilities at fair value in the consolidated statements of financial position

Fair value hierarchy of financial assets and liabilities at fair value in the consolidated statements of financial position as of September 30, 2025 and December 31, 2024, are as follows:

(In millions of Korean won) September 30, 2025
Fair value hierarchy Total
Level 1 Level 2 Level 3
Financial assets
Financial assets at fair value through profit or loss: ~~W~~ 32,611,396 ~~W~~ 39,377,841 ~~W~~ 20,911,778 ~~W~~ 92,901,015
Due from financial institutions — — 66,191 66,191
Debt securities 28,246,735 39,120,857 18,371,270 85,738,862
Equity securities 4,063,410 256,984 1,574,411 5,894,805
Loans — — 899,906 899,906
Others 301,251 — — 301,251
Derivatives held for trading 288,317 6,068,693 228,202 6,585,212
Derivatives held for hedging — 519,122 — 519,122
Financial assets at fair value through other comprehensive income: 47,393,900 48,814,693 1,711,660 97,920,253
Debt securities 46,761,324 45,121,030 — 91,882,354
Equity securities 632,576 2,053,781 1,711,660 4,398,017
Loans — 1,639,882 — 1,639,882
~~W~~ 80,293,613 ~~W~~ 94,780,349 ~~W~~ 22,851,640 ~~W~~ 197,925,602
Financial liabilities
Financial liabilities at fair value through profit or loss ~~W~~ 2,787,170 ~~W~~ — ~~W~~ — ~~W~~ 2,787,170
Financial liabilities designated at fair value through profit or loss 347,574 1,044,718 6,164,849 7,557,141
Derivatives held for trading 421,362 5,690,361 441,629 6,553,352
Derivatives held for hedging — 251,203 — 251,203
~~W~~ 3,556,106 ~~W~~ 6,986,282 ~~W~~ 6,606,478 ~~W~~ 17,148,866

39

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

6.1.2.1 Fair value hierarchy of financial assets and liabilities at fair value in the consolidated statements of financial position (cont’d)

(In millions of Korean won) December 31, 2024
Fair value hierarchy Total
Level 1 Level 2 Level 3
Financial assets
Financial assets at fair value through profit or loss: ~~W~~ 25,554,893 ~~W~~ 33,768,117 ~~W~~ 20,127,083 ~~W~~ 79,450,093
Due from financial institutions — — 59,838 59,838
Debt securities 22,775,948 33,630,189 17,362,499 73,768,636
Equity securities 2,620,426 137,928 1,516,983 4,275,337
Loans — — 1,187,763 1,187,763
Others 158,519 — — 158,519
Derivatives held for trading 20,637 10,682,718 251,515 10,954,870
Derivatives held for hedging — 775,897 — 775,897
Financial assets at fair value through other comprehensive income: 43,858,598 48,537,327 1,499,987 93,895,912
Debt securities 43,319,466 45,416,530 — 88,735,996
Equity securities 539,132 1,674,169 1,499,987 3,713,288
Loans — 1,446,628 — 1,446,628
~~W~~ 69,434,128 ~~W~~ 93,764,059 ~~W~~ 21,878,585 ~~W~~ 185,076,772
Financial liabilities
Financial liabilities at fair value through profit or loss ~~W~~ 2,717,732 ~~W~~ — ~~W~~ — ~~W~~ 2,717,732
Financial liabilities designated at fair value through profit or loss 300,489 1,529,492 6,172,518 8,002,499
Derivatives held for trading 353,074 10,458,585 598,036 11,409,695
Derivatives held for hedging — 373,799 — 373,799
~~W~~ 3,371,295 ~~W~~ 12,361,876 ~~W~~ 6,770,554 ~~W~~ 22,503,725

40

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

6.1.2.1 Fair value hierarchy of financial assets and liabilities at fair value in the consolidated statements of financial position (cont’d)

Valuation techniques and inputs of financial assets and liabilities classified as Level 2 and measured at fair value in the consolidated statements of financial position as of September 30, 2025 and December 31, 2024, are as follows:

(In millions of Korean won) September 30, 2025
Fair value Valuation techniques Inputs
Financial assets
Financial assets at fair value through profit or loss: ~~W~~ 39,377,841
Debt securities 39,120,857 DCF Model, Closed Form, Monte Carlo Simulation, Black-Scholes Model, Hull-white Model, Net Asset<br>Value Method, Binomial Model, and others Projected cash flow, Fair value of assets acquired, Dividend yield, Price of underlying asset,<br>Interest rate, Discount rate, Volatility, Correlation coefficient, and others
Equity securities 256,984 DCF Model Interest rate, Discount rate, and others
Derivatives held for trading 6,068,693 DCF Model, Closed Form, FDM, Monte Carlo Simulation, Black-Scholes Model, Hull-white Model, Option<br>Model, and others Price of underlying asset, Underlying asset index, Interest rate, Volatility, Foreign exchange<br>rate, Discount rate, and others
Derivatives held for hedging 519,122 DCF Model, Closed Form, FDM Projected cash flow, Discount rate, Volatility, Foreign exchange rate, Risk free interest rate, and<br>others
Financial assets at fair value through other comprehensive income: 48,814,693
Debt securities 45,121,030 DCF Model, Option Model Underlying asset index, Interest rate, Discount rate, and others
Equity securities 2,053,781 DCF Model Interest rate, Discount rate, and others
Loans 1,639,882 DCF Model Discount rate
~~W~~ 94,780,349
Financial liabilities
Financial liabilities designated at fair value through profit or loss ~~W~~ 1,044,718 DCF Model, Closed Form, Monte Carlo Simulation, Black-Scholes Model, Hull-white Model, and<br>others Price of underlying asset, Interest rate, Dividend yield, Volatility, Discount rate
Derivatives held for trading 5,690,361 DCF Model, Closed Form, Monte Carlo Simulation, Black-Scholes Model, Hull-white Model, and<br>others Price of underlying asset, Interest rate, Foreign exchange rate, Credit spread, Discount rate,<br>Volatility, and others
Derivatives held for hedging 251,203 DCF Model, Closed Form, FDM Projected cash flow, Discount rate, Volatility, Foreign exchange rate, Risk free interest rate, and<br>others
~~W~~ 6,986,282

41

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

6.1.2.1 Fair value hierarchy of financial assets and liabilities at fair value in the consolidated statements of financial position (cont’d)

(In millions of Korean won) December 31, 2024
Fair value Valuation techniques Inputs
Financial assets
Financial assets at fair value through profit or loss: ~~W~~ 33,768,117
Debt securities 33,630,189 DCF Model, Closed form fomula, MonteCarlo Simulation, Black-Scholes Model, Hull-white Model, Net<br>Asset Value Method, Binomial Model, and others Projected cash flow, Fair value of assets acquired, Dividend yield, Price of underlying asset,<br>Interest rate, Discount rate, Volatility, Correlation coefficient, and others
Equity securities 137,928 DCF Model Interest rate, Discount rate, and others
Derivatives held for trading 10,682,718 DCF Model, Closed form fomula, FDM, MonteCarlo Simulation, Black-Scholes Model, Hull-white Model,<br>Option Model, and others Price of underlying asset, Underlying asset index, Interest rate, Volatility, Foreign exchange<br>rate, Discount rate, and others
Derivatives held for hedging 775,897 DCF Model, Closed Form, FDM Projected cash flow, Discount rate, Forward foreign exchange rate, Volatility, Foreign exchange<br>rate, CRS interest rate, and others
Financial assets at fair value through other comprehensive income: 48,537,327
Debt securities 45,416,530 DCF Model, Option Model Underlying asset index, Interest rate, Discount rate
Equity securities 1,674,169 DCF Model Interest rate, Discount rate
Loans 1,446,628 DCF Model Discount rate
~~W~~ 93,764,059
Financial liabilities
Financial liabilities designated at fair value through profit or loss ~~W~~ 1,529,492 DCF Model, Closed form fomula, MonteCarlo Simulation, Black-Scholes Model, Hull-white Model, and<br>others Price of underlying asset, Interest rate, Dividend yield, Volatility, Discount rate
Derivatives held for trading 10,458,585 DCF Model, Closed form fomula, MonteCarlo Simulation, Black-Scholes Model, Hull-white Model, and<br>others Interest rate, Price of underlying asset, Foreign exchange rate, Credit spread, Discount rate,<br>Volatility, and others
Derivatives held for hedging 373,799 DCF Model, Closed Form, FDM Projected cash flow, Discount rate, Forward foreign exchange rate, Volatility, Foreign exchange<br>rate, Risk free interest rate, and others
~~W~~ 12,361,876

42

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

6.1.2.2 Fair value hierarchy of financial assets and liabilities whose fair value is disclosed

Fair value hierarchy of financial assets and liabilities whose fair value is disclosed as of September 30, 2025 and December 31, 2024, are as follows:

(In millions of Korean won) September 30, 2025
Fair value hierarchy Total
Level 1 Level 2 Level 3
Financial assets
Cash and due from financial institutions<br>^1^ ~~W~~ 2,779,289 ~~W~~ 19,595,255 ~~W~~ 2,896,214 ~~W~~ 25,270,758
Loans measured at amortized cost — 74,000 488,521,476 488,595,476
Securities measured at amortized cost<br>^2^ 3,637,809 30,116,299 36,436 33,790,544
Other financial assets ^2^ — — 33,342,438 33,342,438
~~W~~ 6,417,098 ~~W~~ 49,785,554 ~~W~~ 524,796,564 ~~W~~ 580,999,216
Financial liabilities
Deposits^1^ ~~W~~ — ~~W~~ 188,898,442 ~~W~~ 260,156,513 ~~W~~ 449,054,955
Borrowings^3^ — 3,537,097 65,263,247 68,800,344
Debentures — 68,436,228 9,220,780 77,657,008
Other financial liabilities ^2^ — — 57,725,427 57,725,427
~~W~~ — ~~W~~ 260,871,767 ~~W~~ 392,365,967 ~~W~~ 653,237,734
(In millions of Korean won) December 31, 2024
--- --- --- --- --- --- --- --- ---
Fair value hierarchy Total
Level 1 Level 2 Level 3
Financial assets
Cash and due from financial institutions<br>^1^ ~~W~~ 2,353,334 ~~W~~ 24,731,260 ~~W~~ 2,784,741 ~~W~~ 29,869,335
Loans measured at amortized cost — 106,823 473,127,450 473,234,273
Securities measured at amortized cost<br>^2^ 4,746,587 31,799,265 26,160 36,572,012
Other financial assets ^2^ — — 14,404,227 14,404,227
~~W~~ 7,099,921 ~~W~~ 56,637,348 ~~W~~ 490,342,578 ~~W~~ 554,079,847
Financial liabilities
Deposits^1^ ~~W~~ — ~~W~~ 174,567,804 ~~W~~ 261,424,016 ~~W~~ 435,991,820
Borrowings^3^ — 4,441,612 63,604,584 68,046,196
Debentures — 67,455,577 9,127,815 76,583,392
Other financial liabilities ^2^ — — 33,594,883 33,594,883
~~W~~ — ~~W~~ 246,464,993 ~~W~~ 367,751,298 ~~W~~ 614,216,291
^1^ The amounts included in Level 2 are the carrying amounts which are reasonable approximations of fair value.<br>
--- ---
^2^ The amounts included in Level 3 are the carrying amounts which are reasonable approximations of fair value.<br>
--- ---
^3^ Borrowings of ~~W~~ 8,884 million and ~~W~~ 15,155 million included in<br>Level 2 are the carrying amounts which are reasonable approximations of fair value as of September 30, 2025 and December 31, 2024, respectively.
--- ---

43

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

6.1.2.2 Fair value hierarchy of financial assets and liabilities whose fair value is disclosed (cont’d)

For financial assets and liabilities whose carrying amount is a reasonable approximation of fair value, valuation techniques and inputs are not disclosed.

Valuation techniques and inputs of financial assets and liabilities classified as Level 2, and whose fair value is disclosed as of September 30, 2025 and December 31, 2024, are as follows:

(In millions of Korean won) September 30, 2025
Fair value Valuation techniques Inputs
Financial assets
Loans measured at amortized cost ~~W~~ 74,000 DCF Model Discount rate
Securities measured at amortized cost 30,116,299 DCF Model,<br> <br>MonteCarlo Simulation Discount rate,<br>Interest rate
~~W~~ 30,190,299
Financial liabilities
Borrowings ~~W~~ 3,528,213 DCF Model Discount rate
Debentures 68,436,228 DCF Model Discount rate
~~W~~ 71,964,441
(In millions of Korean won) December 31, 2024
--- --- --- --- --- --- ---
Fair value Valuation techniques Inputs
Financial assets
Loans measured at amortized cost ~~W~~ 106,823 DCF Model Discount rate
Securities measured at amortized cost 31,799,265 DCF Model,<br> <br>MonteCarlo Simulation Discount rate,<br>Interest rate
~~W~~ 31,906,088
Financial liabilities
Borrowings ~~W~~ 4,426,457 DCF Model Discount rate
Debentures 67,455,577 DCF Model Discount rate
~~W~~ 71,882,034

44

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

6.1.2.2 Fair value hierarchy of financial assets and liabilities whose fair value is disclosed (cont’d)

Valuation techniques and inputs of financial assets and liabilities classified as Level 3, and whose fair value is disclosed as of September 30, 2025 and December 31, 2024 are as follows:

(In millions of Korean won) September 30, 2025
Fair value Valuationtechniques Inputs
Financial assets
Cash and due from financial institutions ~~W~~ 2,896,214 DCF Model Credit spread, Other spread, Interest rate, Discount rate
Loans measured at amortized cost 488,521,476 DCF Model Credit spread, Other spread, Prepayment rate, Interest rate, Discount rate, and<br>others
~~W~~ 491,417,690
Financial liabilities
Deposits ~~W~~ 260,156,513 DCF Model Other spread, Prepayment rate, Interest rate, Discount rate
Borrowings 65,263,247 DCF Model Other spread, Projected cash flow, Discount rate
Debentures 9,220,780 DCF Model Projected cash flow, Discount rate, and others
~~W~~ 334,640,540
(In millions of Korean won) December 31, 2024
--- --- --- --- --- ---
Fair value Valuationtechniques Inputs
Financial assets
Cash and due from financial institutions ~~W~~ 2,784,741 DCF Model Credit spread, Other spread, Interest rate, Discount rate
Loans measured at amortized cost 473,127,450 DCF Model Credit spread, Other spread, Prepayment rate, Interest rate, Discount rate, and<br>others
~~W~~ 475,912,191
Financial liabilities
Deposits ~~W~~ 261,424,016 DCF Model Other spread, Prepayment rate, Interest rate, Discount rate
Borrowings 63,604,584 DCF Model Other spread, Projected cash flow, Discount rate
Debentures 9,127,815 DCF Model Projected cash flow, Discount rate, and others
~~W~~ 334,156,415

6.2 Disclosure of Fair Value Hierarchy Level 3

6.2.1 Valuation policy and process of Level 3 fair value

The Group uses external, independent and qualified valuation service in addition to internal valuation models to determine the fair value of financial instruments at the end of every reporting period.

If the changes in situation and events which cause transfers between the fair value hierarchy level for a financial asset or liability occur, the Group’s policy is to recognize such transfers as having occurred at the beginning of the reporting period.

45

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

6.2.2 Changes in fair value (Level 3) measured using valuation technique based on unobservable inputs in the market

6.2.2.1 Changes in financial instruments classified as Level 3 of the fair value hierarchy for the nine-month periods ended September 30, 2025 and 2024, are as follows:

(In millions of Korean won) 2025
Financial assets at fair value through profit orloss Financialinvestments Financialliabilities atfair valuethrough profitor loss Netderivativefinancialinstruments
Due fromfinancialinstitutionsmeasuredat fairvaluethroughprofit orloss Securitiesmeasured atfair valuethrough profitor loss Loansmeasured atfair valuethrough profitor loss Equitysecuritiesmeasured atfair valuethrough othercomprehensiveincome Financialliabilitiesdesignated atfair valuethrough profitor loss Derivativesheld fortrading
Beginning ~~W~~ 59,838 ~~W~~ 18,879,482 ~~W~~ 1,187,764 ~~W~~ 1,499,987 ~~W~~ (6,172,518 ) ~~W~~ (346,521 )
Total gains or losses:
Profit or loss 6,353 138,186 9,322 — (328,400 ) 47,425
Other comprehensive income (loss) — (1 ) — 92,993 (10,068 ) —
Purchases — 3,773,365 2,366,998 169,476 — 11
Sales — (2,794,460 ) (2,664,178 ) (43,005 ) — (39 )
Issuances — — — — (1,918,748 ) (5,857 )
Settlements — — — — 2,264,885 95,964
Transfers into Level 3 * — 7,282 — — — —
Transfers out of Level 3 * — (58,173 ) — (7,791 ) — (4,410 )
Ending ~~W~~ 66,191 ~~W~~ 19,945,681 ~~W~~ 899,906 ~~W~~ 1,711,660 ~~W~~ (6,164,849 ) ~~W~~ (213,427 )

46

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

6.2.2.1 Changes in financial instruments classified as Level 3 of the fair value hierarchy for the nine-month periods ended September 30, 2025 and 2024, are as follows: (cont’d)

(In millions of Korean won) 2024
Financial assets at fair value through profit orloss Financialinvestments Financialliabilities atfair valuethrough profitor loss Netderivativefinancialinstruments
Due fromfinancialinstitutionsmeasuredat fairvaluethroughprofit orloss Securitiesmeasured atfair valuethrough profitor loss Loansmeasured atfair valuethroughprofit or loss Equitysecuritiesmeasured atfair valuethrough othercomprehensiveincome Financialliabilitiesdesignated atfair valuethrough profitor loss Derivativesheld fortrading
Beginning ~~W~~ 53,791 ~~W~~ 17,986,748 ~~W~~ 183,490 ~~W~~ 1,450,908 ~~W~~ (7,028,486 ) ~~W~~ (666,734 )
Total gains or losses:
Profit or loss 5,007 260,584 14,832 — (284,157 ) (59,008 )
Other comprehensive income (loss) — — — (142,787 ) (14,738 ) —
Purchases — 2,561,527 373,629 124,218 — 4,991
Sales — (2,458,596 ) (276,835 ) (49 ) — (4,993 )
Issuances — — — — (1,351,989 ) (1,881 )
Settlements — — — — 3,338,577 442,352
Transfers into Level 3 * — 6,696 242 — — —
Transfers out of Level 3 * — (16,882 ) — — — —
Ending ~~W~~ 58,798 ~~W~~ 18,340,077 ~~W~~ 295,358 ~~W~~ 1,432,290 ~~W~~ (5,340,793 ) ~~W~~ (285,273 )
* Transfers into or out of Level 3 of the fair value hierarchy occurred due to the change in the availability of<br>observable market data.
--- ---

47

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

6.2.2.2 In relation to changes in financial instruments classified as Level 3 of the fair value hierarchy, total gains or losses recognized in profit or loss for the period, and total gains or losses recognized in profit or loss from financial instruments held at the end of the reporting period for the nine-month periods ended September 30, 2025 and 2024, are as follows:

(In millions of Korean won)

2025 2024
Net gains(losses) onfinancialinstrumentsat fair valuethroughprofit or loss Net Otheroperatingincome(expenses) Net<br>interestincome Net gains(losses) onfinancialinstrumentsat fair valuethroughprofit or loss Net Otheroperatingincome<br>(expenses) Net<br>interestincome
Total gains (losses) recognized in profit or loss for the period ~~W~~ (20,538 ) ~~W~~ (106,576 ) ~~W~~ — ~~W~~ (170,275 ) ~~W~~ 107,533 ~~W~~ —
Total gains (losses) recognized in profit or loss from financial instruments held at the end of<br>the reporting period 126,494 (94,548 ) — (120,437 ) 97,906 —

48

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

6.2.3 Sensitivity analysis of changes in unobservable inputs

6.2.3.1 Information about fair value measurements using unobservable inputs as of September 30, 2025 and December 31, 2024, are as follows:

(In millions of Korean won) September 30, 2025
Fair value Valuation techniques Unobservable inputs Range ofunobservableinputs (%) Relationship of<br><br><br>unobservable inputs to fairvalue
Financial assets
Financial assets at fair value through profit or loss:
Due from financial institutions ~~W~~ 66,191 Hull-white Model Volatility 0.48 The higher the volatility, the higher the fair value fluctuation
Debt securities 18,371,270 DCF Model, Closed Form, FDM, Monte Carlo Simulation, Hull-white Model, Black-Scholes<br>Model, Option Model, Binomial Model, Net Asset Value Method, Milestone Method, Income Approach, Market Value Approach, and others Growth rate 1.00 ~ 3.00 The higher the growth rate, the higher the fair value
Volatility 0.48 ~ 51.10 The higher the volatility, the higher the fair value fluctuation
Discount rate 1.86 ~ 12.88 The lower the discount<br><br><br>rate, the higher the fair value
Stock index fluctuation rate 10.00 ~ 27.96 The higher the volatility, the higher the fair value fluctuation
Correlation coefficient -15.87 ~ 100.00 The higher the correlation coefficient, the higher the fair value fluctuation
Liquidation value -1.00 ~ 1.00 The higher the liquidation value, the higher the fair value
Recovery rate 40.00 The higher the recovery rate, the higher the fair value
Rate of real estate price fluctuation 0.00 The higher the sale price of real estate, the higher the fair value
Equity securities 1,574,411 Income Approach, Market Value Approach, Asset Value Approach, DCF Model, Comparable<br>Company Analysis, Risk Adjusted Discount Rate Method, Dividend Discount Model, Usage of Past Transactions, Binomial Model, and others Growth rate 0.00 ~ 1.00 The higher the growth rate, the higher the fair value
Discount rate 6.70 ~ 27.73 The lower the discount rate, the higher the fair value
Volatility 0.45 ~ 38.10 The higher the volatility, the higher the fair value fluctuation
Loans 899,906 DCF Model Default rate 0.00 The lower the default rate, the higher the fair value
Discount rate 8.44 The lower the discount<br><br><br>rate, the higher the fair value

49

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

6.2.3.1 Information about fair value measurements using unobservable inputs as of September 30, 2025 and December 31, 2024, are as follows: (cont’d)

(In millions of Korean won) September 30, 2025
Fair value Valuation techniques Unobservable inputs Range ofunobservableinputs (%) Relationship of<br><br><br>unobservable inputs to fairvalue
Derivatives held for trading:
Stock and index ~~W~~ 210,577 DCF Model, Closed Form, FDM, Monte Carlo Simulation, Hull-white Model, Black-Scholes<br>Model, Binomial Model, Net Asset Value Method Volatility of underlying asset 0.00 ~ 70.55 The higher the volatility, the higher the fair value fluctuation
Correlation coefficient 8.78 ~ 73.70 The higher the correlation coefficient, the higher the fair value fluctuation
Currency, interest rate, and others 17,625 DCF Model, Hull-white Model, Monte Carlo Simulation, Closed Form Correlation coefficient 0.50 The higher the correlation coefficient, the higher the fair value fluctuation
Financial assets at fair value through other comprehensive income:
Equity securities 1,711,660 DCF Model, Comparable Company Analysis, Risk Adjusted Discount Rate Method, IMV Model,<br>Income Approach, Net Asset Value Method, Market Value Approach, Tree model, Monte Carlo Simulation, and others Growth rate 0.00 ~ 1.00 The higher the growth rate, the higher the fair value
Discount rate 4.88 ~ 16.24 The lower the discount rate, the higher the fair value
Volatility 0.48 ~ 29.47 The higher the volatility, the higher the fair value fluctuation
Liquidation value 0.00 The higher the liquidation value, the higher the fair value
~~W~~ 22,851,640

50

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

6.2.3.1 Information about fair value measurements using unobservable inputs as of September 30, 2025 and December 31, 2024, are as follows: (cont’d)

(In millions of Korean won) September 30, 2025
Fair value Valuation techniques Unobservable inputs Range ofunobservableinputs (%) Relationship of<br><br><br>unobservable inputs to fairvalue
Financial liabilities
Financial liabilities designated at fair value through profit or loss:
Derivative-linked securities ~~W~~ 6,164,849 DCF Model, Closed Form, Monte Carlo Simulation, Black-Scholes Model, Hull-white Model,<br>Net Asset Value Method, and others Volatility of underlying asset 0.00 ~ 64.00 The higher the volatility, the higher the fair value fluctuation
Correlation coefficient -24.94 ~ 100.00 The higher the correlation coefficient, the higher the fair value fluctuation
Derivatives held for trading:
Stock and index 74,426 DCF Model, Closed Form, Monte Carlo Simulation, Black-Scholes Model, Hull-white Model,<br>Net Asset Value Method, and others Volatility of underlying asset 19.03 ~ 73.38 The higher the volatility, the higher the fair value fluctuation
Correlation coefficient 7.62 ~ 73.70 The higher the correlation coefficient, the higher the fair value fluctuation
Others 367,203 DCF Model, Hull-white Model, Monte Carlo Simulation, Closed Form Discount rate 2.96 The lower the discount rate, the higher the fair value
Volatility of underlying asset 0.00 ~ 23.04 The higher the volatility, the higher the fair value fluctuation
Correlation coefficient -24.94 ~ 100.00 The higher the correlation coefficient, the higher the fair value fluctuation
~~W~~ 6,606,478

51

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

6.2.3.1 Information about fair value measurements using unobservable inputs as of September 30, 2025 and December 31, 2024, are as follows: (cont’d)

(In millions of Korean won) December 31, 2024
Fair value Valuation techniques Unobservable inputs Range ofunobservableinputs (%) Relationship of<br><br><br>unobservable inputs to fairvalue
Financial assets
Financial assets at fair value through profit or loss:
Due from financial institutions ~~W~~ 59,838 Hull-white Model Volatility 0.46 ~ 0.62 The higher the volatility, the higher the fair value fluctuation
Debt securities 17,362,499 DCF Model, Closed Form, FDM, MonteCarlo Simulation, Hull-white Model, Black-Scholes<br>Model, Option Model, Binomial Model, Net Asset Value Method, Milestone Method, Income Approach, Market Value Approach, and others Growth rate 1.00 ~ 3.00 The higher the growth rate, the higher the fair value
Volatility 0.46 ~ 76.22 The higher the volatility, the higher the fair value fluctuation
Discount rate 0.00 ~ 15.53 The lower the discount rate, the higher the fair value
Stock index fluctuation rate 10.00 ~ 29.90 The higher the volatility, the higher the fair value fluctuation
Correlation coefficient 90.00 The higher the correlation coefficient, the higher the fair value fluctuation
Liquidation value -1.00 ~ 1.00 The higher the liquidation value, the higher the fair value
Recovery rate 40.00 The higher the recovery rate, the higher the fair value
Rate of real estate price fluctuation -1.00 ~ 1.00 The higher the sale price of real estate, the higher the fair value
Equity securities 1,516,983 Income Approach, Market Value Approach, Asset Value Approach, DCF Model, Comparable<br>Company Analysis, Risk Adjusted Discount Rate Method, Dividend Discount Model, Usage of Past Transactions, Binomial Model, and others Growth rate 0.00 ~ 1.00 The higher the growth rate, the higher the fair value
Discount rate 5.90 ~ 33.90 The lower the discount rate, the higher the fair value
Volatility 0.50 ~ 0.71 The higher the volatility, the higher the fair value fluctuation
Loans 1,187,763 DCF Model Discount rate 8.54 The lower the discount rate, the higher the fair value

52

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

6.2.3.1 Information about fair value measurements using unobservable inputs as of September 30, 2025 and December 31, 2024, are as follows: (cont’d)

(In millions of Korean won) December 31, 2024
Fair value Valuation techniques Unobservable inputs Range ofunobservableinputs (%) Relationship of<br><br><br>unobservable inputs to fairvalue
Derivatives held for trading:
Stock and index ~~W~~ 30,246 DCF Model, Closed Form, FDM, MonteCarlo Simulation, Hull-white Model, Black-Scholes<br>Model, Binomial Model, Net Asset Value Method Volatility of underlying asset 18.85 ~ 65.13 The higher the volatility, the higher the fair value fluctuation
Correlation coefficient -58.46 ~ 74.20 The higher the correlation coefficient, the higher the fair value fluctuation
Currency, interest rate, and others 221,269 DCF Model, Hull-white Model, MonteCarlo Simulation, Closed Form Volatility 0.57 ~ 25.22 The higher the volatility, the higher the fair value fluctuation
Correlation coefficient -58.46 ~ 100.00 The higher the correlation coefficient, the higher the fair value fluctuation
Financial assets at fair value through other comprehensive income:
Equity securities 1,499,987 DCF Model, Comparable Company Analysis, Risk Adjusted Discount Rate Method, IMV Model,<br>Income Approach, Net Asset Value Method, Market Approach, Tree Model, Monte Carlo Simulation, and others Growth rate 0.00 ~ 1.00 The higher the growth rate, the higher the fair value
Discount rate 6.01 ~ 16.00 The lower the discount rate, the higher the fair value
Volatility 0.50 ~ 31.79 The higher the volatility, the higher the fair value fluctuation
~~W~~ 21,878,585

53

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

6.2.3.1 Information about fair value measurements using unobservable inputs as of September 30, 2025 and December 31, 2024, are as follows: (cont’d)

(In millions of Korean won) December 31, 2024
Fair value Valuation techniques Unobservable inputs Range ofunobservableinputs (%) Relationship of<br><br><br>unobservable inputs to fairvalue
Financial liabilities
Financial liabilities designated at fair value through profit or loss:
Derivative-linked securities ~~W~~ 6,172,518 DCF Model, Closed Form, MonteCarlo Simulation, Black-Scholes Model, Hull-white Model,<br>Net Asset Value Method, and others Volatility of underlying asset 0.51 ~ 65.13 The higher the volatility, the higher the fair value fluctuation
Correlation coefficient -58.46 ~ 100.00 The higher the correlation coefficient, the higher the fair value fluctuation
Derivatives held for trading:
Stock and index 159,769 DCF Model, Closed Form, MonteCarlo Simulation, Hull-white Model, Black-Scholes Model,<br>Net Asset Value Method, and others Volatility of underlying asset 0.57 ~ 58.87 The higher the volatility, the higher the fair value fluctuation
Correlation coefficient -58.46 ~ 100.00 The higher the correlation coefficient, the higher the fair value fluctuation
Others 438,267 DCF Model, Hull-white Model, MonteCarlo Simulation, Closed Form Discount rate 3.70 ~ 3.74 The lower the discount rate, the higher the fair value
Volatility of underlying asset 0.51 ~ 57.61 The higher the volatility, the higher the fair value fluctuation
Correlation coefficient -26.22 ~ 100.00 The higher the correlation coefficient, the higher the fair value fluctuation
~~W~~ 6,770,554

54

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

6.2.3.2 Sensitivity analysis of changes in unobservable inputs

Sensitivity analysis of financial instruments is performed to measure favorable and unfavorable changes in fair value of financial instruments which are affected by unobservable parameters, using a statistical technique. When the fair value is affected by more than one input parameter, the amounts represent the most favorable or most unfavorable outcome. Level 3 financial instruments subject to sensitivity analysis are (a) equity-related derivatives, currency-related derivatives, and interest rate related derivatives whose fair value changes are recognized in profit or loss, (b) financial liabilities designated at fair value through profit or loss, and (c) due from financial institutions, debt securities (including beneficiary certificates), equity securities, and loans whose fair value changes are recognized in profit or loss or other comprehensive income or loss.

Results of the sensitivity analysis of changes in unobservable inputs as of September 30, 2025 and December 31, 2024, are as follows:

(In millions of Korean won) September 30, 2025
Profit or loss Other comprehensive<br>income or loss
Favorable<br>changes Unfavorable<br>changes Favorable<br>changes Unfavorable<br>changes
Financial assets
Financial assets at fair value through profit or loss: ^1^
Due from financial institutions 13 (13 ) — —
Debt securities ^4^ 104,260 (117,749 ) — —
Equity securities ^3^ 39,255 (24,647 ) — —
Loans ^5^ 5,200 (4,822 ) — —
Derivatives held for trading ^2^ 3,083 (3,591 ) — —
Financial assets at fair value through other comprehensive income:
Equity securities ^3^ — — 55,484 (37,728 )
~~W~~ 151,811 ~~W~~ (150,822 ) ~~W~~ 55,484 ~~W~~ (37,728 )
Financial liabilities
Financial liabilities designated at fair value through profit or loss ^1^ ~~W~~ 13,183 ~~W~~ (11,793 ) ~~W~~ — ~~W~~ —
Derivatives held for trading ^2^ 10,380 (10,822 ) — —
~~W~~ 23,563 ~~W~~ (22,615 ) ~~W~~ — ~~W~~ —

55

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

6.2.3.2 Sensitivity analysis of changes in unobservable inputs (cont’d)

(In millions of Korean won) December 31, 2024
Profit or loss Other comprehensive<br>income or loss
Favorable<br>changes Unfavorable<br>changes Favorable<br>changes Unfavorable<br>changes
Financial assets
Financial assets at fair value through profit or loss: ^1^
Due from financial institutions ~~W~~ 141 ~~W~~ (151 ) ~~W~~ — ~~W~~ —
Debt securities ^4^ 103,717 (102,842 ) — —
Equity securities ^3^ 35,920 (19,754 ) — —
Loans ^5^ 2,329 (2,119 ) — —
Derivatives held for trading ^2^ 14,878 (16,535 ) — —
Financial assets at fair value through other comprehensive income:
Equity securities ^3^ — — 57,795 (36,073 )
~~W~~ 156,985 ~~W~~ (141,401 ) ~~W~~ 57,795 ~~W~~ (36,073 )
Financial liabilities
Financial liabilities designated at fair value through profit or loss ^1^ ~~W~~ 16,840 ~~W~~ (16,760 ) ~~W~~ — ~~W~~ —
Derivatives held for trading ^2^ 22,119 (24,506 ) — —
~~W~~ 38,959 ~~W~~ (41,266 ) ~~W~~ — ~~W~~ —
^1^ For financial instruments at fair value through profit or loss, changes in fair value are calculated by<br>shifting principal unobservable input parameters such as discount rate, recovery rate, liquidation value, growth rate by ±1%p and volatility of underlying asset by ±1%p or ±10% and correlation coefficient by ±10%.<br>
--- ---
^2^ For derivative financial instruments, changes in fair value are calculated by shifting principal unobservable<br>input parameters such as price of underlying asset and volatility by ± 10%.
--- ---
^3^ For equity securities, changes in fair value are calculated by shifting principal unobservable input parameters<br>such as discount rate (-1%p~1%p) and growth rate (-1%p~1%p).
--- ---
^4^ For beneficiary certificates, it is practically impossible to analyze sensitivity of changes in unobservable<br>inputs. However, for beneficiary certificates whose underlying assets are real estates, changes in fair value are calculated by shifting rate of real estate price fluctuation by -1%p~1%p, and for beneficiary certificates whose underlying assets are<br>equity investments, changes in fair value are calculated by shifting principal unobservable input parameters such as liquidation value by -1%p~1%p and discount rate by -1%p~1%p.
--- ---
^5^ For loans, changes in fair value are calculated by shifting principal unobservable input parameters such as<br>discount rate by -1%p~1%p.
--- ---

56

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

6.2.4 Valuation gains and losses on transaction day

When the Group measures the fair value of OTC derivatives using inputs that are not based on observable market data, there could be a difference between the transaction price and the amount determined using that valuation technique. In these circumstances, the fair value of financial instruments is recognized as the transaction price, and the difference is not recognized in profit or loss but deferred and amortized using the straight-line method over the life of the financial instrument. When the fair value of the financial instruments is subsequently determined using observable market inputs, the remaining deferred amount is recognized in profit or loss.

Changes in deferred valuation gains and losses on transaction day for the nine-month periods ended September 30, 2025 and 2024, are as follows:

(In millions of Korean won) 2025 2024
Balance at the beginning of the period ~~W~~ 12,140 ~~W~~ 23,431
New transactions 61,199 47,496
Changes during the period (38,819 ) (53,013 )
Balance at the end of the period ~~W~~ 34,520 ~~W~~ 17,914

57

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

6.3 Carrying Amount of Financial Instruments by Category

Financial assets and liabilities are measured at fair value or amortized cost. Carrying amount of financial assets and liabilities by category as of September 30, 2025 and December 31, 2024, are as follows:

(In millions of Korean won)

September 30, 2025
Financialinstruments atfair valuethrough profitor loss Financialinstruments atfair valuethrough othercomprehensiveincome Financialinstrumentsdesignated atfair valuethrough othercomprehensiveincome Financialinstruments atamortized cost Derivativesheld forhedging Total
Financial assets
Cash and due from financial institutions ~~W~~ — ~~W~~ — ~~W~~ — ~~W~~ 25,270,758 ~~W~~ — ~~W~~ 25,270,758
Financial assets at fair value through profit or loss 92,901,015 — — — — 92,901,015
Derivative financial assets 6,585,212 — — — 519,122 7,104,334
Loans measured at amortized cost — — — 486,519,741 — 486,519,741
Financial investments — 93,522,236 4,398,017 34,135,823 — 132,056,076
Other financial assets — — — 33,342,438 — 33,342,438
~~W~~ 99,486,227 ~~W~~ 93,522,236 ~~W~~ 4,398,017 ~~W~~ 579,268,760 ~~W~~ 519,122 ~~W~~ 777,194,362

(In millions of Korean won)

September 30, 2025
Financialinstruments atfair valuethrough profitor loss Financialinstrumentsdesignated atfair valuethrough profitor loss Financialinstruments atamortized cost Derivativesheld forhedging Total
Financial liabilities
Financial liabilities at fair value through profit or loss ~~W~~ 2,787,170 ~~W~~ 7,557,141 ~~W~~ — ~~W~~ — ~~W~~ 10,344,311
Derivative financial liabilities 6,553,352 — — 251,203 6,804,555
Deposits — — 448,711,993 — 448,711,993
Borrowings — — 68,790,018 — 68,790,018
Debentures — — 77,185,525 — 77,185,525
Other financial liabilities * — — 57,725,427 — 57,725,427
~~W~~ 9,340,522 ~~W~~ 7,557,141 ~~W~~ 652,412,963 ~~W~~ 251,203 ~~W~~ 669,561,829

58

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

6.3 Carrying Amount of Financial Instruments by Category (cont’d)

(In millions of Korean won)

December 31, 2024
Financialinstruments atfair valuethrough profitor loss Financialinstruments atfair valuethrough othercomprehensiveincome Financialinstrumentsdesignated atfair valuethrough othercomprehensiveincome Financialinstruments atamortized cost Derivativesheld forhedging Total
Financial assets
Cash and due from financial institutions ~~W~~ — ~~W~~ — ~~W~~ — ~~W~~ 29,869,111 ~~W~~ — ~~W~~ 29,869,111
Financial assets at fair value through profit or loss 79,450,093 — — — — 79,450,093
Derivative financial assets 10,954,870 — — — 775,897 11,730,767
Loans measured at amortized cost — — — 472,071,840 — 472,071,840
Financial investments — 90,182,623 3,713,289 37,113,552 — 131,009,464
Other financial assets — — — 14,404,227 — 14,404,227
~~W~~ 90,404,963 ~~W~~ 90,182,623 ~~W~~ 3,713,289 ~~W~~ 553,458,730 ~~W~~ 775,897 ~~W~~ 738,535,502

(In millions of Korean won)

December 31, 2024
Financialinstruments atfair valuethrough profitor loss Financialinstrumentsdesignated atfair valuethrough profitor loss Financialinstruments atamortized cost Derivativesheld forhedging Total
Financial liabilities
Financial liabilities at fair value through profit or loss ~~W~~ 2,717,732 ~~W~~ 8,002,499 ~~W~~ — ~~W~~ — ~~W~~ 10,720,231
Derivative financial liabilities 11,409,695 — — 373,799 11,783,494
Deposits — — 435,687,897 — 435,687,897
Borrowings — — 68,077,012 — 68,077,012
Debentures — — 76,171,257 — 76,171,257
Other financial liabilities * — — 33,594,883 — 33,594,883
~~W~~ 14,127,427 ~~W~~ 8,002,499 ~~W~~ 613,531,049 ~~W~~ 373,799 ~~W~~ 636,034,774
* Other financial liabilities include lease liabilities that are not included in the category of financial<br>instruments measured at amortized cost.
--- ---

59

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

7. Due from Financial Institutions Measured at Amortized Cost

7.1 Details of due from financial institutions as of September 30, 2025 and December 31, 2024, are as follows:

(In millions of Korean won) Financial institutions Interest rate(%)<br>as of<br>September 30,2025 September 30,<br>2025 December 31,<br>2024
Due from financial institutions in Korean won Due from the Bank of Korea The Bank of Korea — ~~W~~ 7,063,080 ~~W~~ 11,635,481
Due from banks Hana Bank and others 0.00 ~ 4.16 3,338,822 3,342,114
Due from others Korea Securities Finance Corp., and others 0.00 ~ 3.46 1,269,763 1,473,585
11,671,665 16,451,180
Due from financial institutions in foreign currencies Due from banks in foreign currencies The Bank of Korea and others 0.00 ~ 3.93 7,540,751 7,767,797
Time deposits in foreign currencies BANK OF COMMUNICATIONS Co., Ltd. NEW YORK BRANCH and others 0.00 ~ 9.75 548,931 634,903
Due from others YUANTA BANK(TAIWAN) and others 0.00 ~ 6.50 2,951,562 2,937,813
11,041,244 11,340,513
~~W~~ 22,712,909 ~~W~~ 27,791,693
* Before netting of allowance
--- ---

7.2 Details of restricted due from financial institutions as of September 30, 2025 and December 31, 2024, are as follows:

(In millions of Korean won) Financial institutions September 30,<br>2025 December 31,2024 Reasons of restriction
Due from financial institutions in Korean won Due from the Bank of Korea The Bank of Korea ~~W~~ 7,063,080 ~~W~~ 11,635,481 Bank of Korea Act
Due from banks Hana Bank and others 127,293 106,500 Net settlement and others
Due from others Korea Securities Finance Corp., and others 821,514 1,254,615 Derivatives margin account and others
8,011,887 12,996,596
Due from financial institutions in foreign currencies Due from banks in foreign currencies The Bank of Korea and others 1,509,656 2,736,871 Bank of Korea Act and others
Time deposits in foreign currencies BANK OF COMMUNICATIONS Co., Ltd. NEW YORK BRANCH and others 79,951 98,264 Bank Act of the State of New York and others
Due from others YUANTA BANK(TAIWAN) and others 2,692,043 2,709,177 Derivatives margin account and others
4,281,650 5,544,312
~~W~~ 12,293,537 ~~W~~ 18,540,908
* Before netting of allowance
--- ---

60

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

7.3 Changes in allowances for credit losses of due from financial institutions for the nine-month periods ended September 30, 2025 and 2024, are as follows:

(In millions of Korean won) 2025
12-monthexpected creditlosses Lifetime expected credit losses
Non-impaired Impaired
Beginning ~~W~~ 1,572 ~~W~~ — ~~W~~ —
Transfer between stages:
Transfer to 12-month expected credit losses — — —
Transfer to lifetime expected credit losses — — —
Impairment — — —
Sales — — —
Provision for credit losses 148 — —
Others (61 ) — —
Ending ~~W~~ 1,659 ~~W~~ — ~~W~~ —
(In millions of Korean won) 2024
--- --- --- --- --- --- --- --- ---
12-monthexpected creditlosses Lifetime expected credit losses
Non-impaired Impaired
Beginning ~~W~~ 1,021 ~~W~~ — ~~W~~ —
Transfer between stages:
Transfer to 12-month expected credit losses — — —
Transfer to lifetime expected credit losses — — —
Impairment — — —
Sales — — —
Provision for credit losses 650 — —
Others 36 — —
Ending ~~W~~ 1,707 ~~W~~ — ~~W~~ —

61

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

8. Derivative Financial Instruments and Hedge Accounting

The Group’s derivative operations focus on addressing the needs of the Group’s corporate clients to hedge their risk exposure and hedging the Group’s risk exposure that results from such client contracts. The Group also engages in derivative trading activities to hedge the interest rate risk and currency risk arising from the Group’s own assets and liabilities. In addition, the Group engages in proprietary trading of derivatives within the predetermined transaction limit.

The Group provides and trades a range of derivative financial instruments, including:

• Interest rate swaps relating to interest rate risk in Korean won
• Cross-currency swaps, forwards, and options relating to currency risk
--- ---
• Stock index options linked with the Korea Composite Stock Price Index (“KOSPI”)<br>
--- ---

In particular, the Group applies fair value hedge accounting using interest rate swaps, currency forwards, and others to hedge the risk of changes in fair value due to the changes in interest rate and foreign exchange rate of structured debentures in Korean won, debentures in foreign currencies, structured deposits in foreign currencies, and others. The Group applies cash flow hedge accounting using interest rate swaps, currency swaps, and others to hedge the risk of changes in cash flows of floating rate debt securities in Korean won, borrowings in foreign currencies, group of loans measured at amortized cost, and others. In addition, the Group applies net investments in foreign operations hedge accounting by designating debentures in foreign currencies and cross currency forwards as hedging instruments to hedge the currency risk of net investments in foreign operations.

62

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

8.1 Details of derivative financial instruments held for trading as of September 30, 2025 and December 31, 2024, are as follows:

(In millions of Korean won)

September 30, 2025 December 31, 2024
Notional amount Assets Liabilities Notional amount Assets Liabilities
Interest rate
Forwards ~~W~~ 23,581,468 ~~W~~ 655,478 ~~W~~ 712,855 ~~W~~ 18,253,487 ~~W~~ 577,037 ~~W~~ 736,622
Futures* 6,319,429 2,715 382 6,388,783 1,178 5,407
Swaps 279,641,964 298,535 505,107 334,595,285 405,611 552,316
Options 6,588,000 143,935 113,809 7,108,100 152,220 146,648
316,130,861 1,100,663 1,332,153 366,345,655 1,136,046 1,440,993
Currency
Forwards 135,486,780 2,626,281 1,307,324 136,815,645 5,848,876 3,326,427
Futures* 1,164,409 444 172 723,795 1,694 234
Swaps 71,494,388 2,125,904 2,963,345 82,498,194 3,587,141 5,960,622
Options 1,926,402 6,572 10,204 1,999,773 23,808 25,374
210,071,979 4,759,201 4,281,045 222,037,407 9,461,519 9,312,657
Stock and index
Futures* 4,493,948 28,442 145,821 2,151,606 3,260 7,963
Swaps 5,024,204 344,161 304,814 4,963,174 278,278 156,825
Options 3,185,457 286,141 230,144 2,641,003 15,331 171,368
12,703,609 658,744 680,779 9,755,783 296,869 336,156
Credit
Swaps 5,806,080 33,237 23,802 4,797,110 37,123 27,397
5,806,080 33,237 23,802 4,797,110 37,123 27,397
Commodity
Futures* 93,217 2,667 396 42,764 1,191 1,012
Swaps 1,482,478 20,812 20,019 1,297,183 12,390 11,781
Options 132,558 2,770 2,816 292,290 3,018 3,130
1,708,253 26,249 23,231 1,632,237 16,599 15,923
Others 970,985 7,118 212,341 891,012 6,715 276,569
~~W~~ 547,391,767 ~~W~~ 6,585,212 ~~W~~ 6,553,351 ~~W~~ 605,459,204 ~~W~~ 10,954,871 ~~W~~ 11,409,695
* Gains or losses arising from daily mark-to-market futures are reflected in the margin accounts.<br>
--- ---

63

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

8.2 Average price conditions of future nominal cash flows by type of hedge accounting as of September 30, 2025 and December 31, 2024, are as follows:

(In millions of Korean won)
2 years 3 years 4 years 5 years Over<br>5 years Total
Fair value hedge
Nominal amount of the hedging instrument 4,073,450 ~~W~~ 452,564 ~~W~~ 151,383 ~~W~~ 865,608 ~~W~~ 1,549,038 ~~W~~ 604,929 ~~W~~ 7,696,972
Average price condition (%) 4.09 4.45 4.31 5.95 2.67 3.73 3.97
Average price condition (/KRW) 1,349.25 1,336.84 1,340.00 — — — 1,348.53
Average price condition (/KRW) 1,518.99 1,477.46 — — — — 1,506.75
Average price condition (AUD/KRW) 890.12 — — — — — 890.12
Average price condition (/KRW) 1,842.12 — — — — — 1,842.12
Cash flow hedge
Nominal amount of the hedging instrument 3,438,760 ~~W~~ 4,090,078 ~~W~~ 1,941,915 ~~W~~ 757,015 ~~W~~ 285,792 ~~W~~ — ~~W~~ 10,513,560
Average price condition (%) 3.82 4.32 4.31 3.32 3.12 — 4.12
Average price condition (/KRW) 1,268.11 1,437.15 1,350.22 1,353.74 1,159.20 — 1,300.13
Average price condition (/KRW) — 1,535.03 1,505.50 — — — 1,526.90
Average price condition (AUD/KRW) 896.73 932.60 — — — — 905.35
Hedge of net investments in foreign operations
Nominal amount of the hedging instrument 11,218 ~~W~~ 225,754 ~~W~~ — ~~W~~ — ~~W~~ — ~~W~~ — ~~W~~ 236,972
Average price condition (/KRW) 1,071.00 1,178.92 — — — — 1,173.81

All values are in US Dollars.

64

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

8.2 Average price conditions of future nominal cash flows by type of hedge accounting as of September 30, 2025 and December 31, 2024, are as follows: (cont’d)

(In millions of Korean won)
2 years 3 years 4 years 5 years Over<br>5 years Total
Fair value hedge
Nominal amount of the hedging instrument 5,071,561 ~~W~~ 1,674,709 ~~W~~ 444,487 ~~W~~ 189,448 ~~W~~ 941,835 ~~W~~ 1,998,080 ~~W~~ 10,320,120
Average price condition (%) 4.58 4.65 4.71 5.74 6.69 3.81 4.68
Average price condition (/KRW) 1,341.52 1,298.73 1,276.69 — — — 1,325.95
Average price condition (/KRW) 1,464.04 1,469.25 1,447.53 — — — 1,464.60
Average price condition (AUD/KRW) 891.13 885.60 — — — — 890.56
Average price condition (/KRW) 1,539.22 — — — — — 1,539.22
Cash flow hedge
Nominal amount of the hedging instrument 2,385,743 ~~W~~ 3,059,818 ~~W~~ 2,779,439 ~~W~~ 981,453 ~~W~~ 545,140 ~~W~~ — ~~W~~ 9,751,593
Average price condition (%) 3.05 4.14 4.98 4.91 3.71 — 4.43
Average price condition (/KRW) 1,228.80 1,250.67 1,331.02 1,254.81 1,373.85 — 1,282.82
Average price condition (/KRW) 1,374.73 1,501.00 — 1,392.00 — — 1,423.08
Average price condition (AUD/KRW) 851.50 889.00 932.60 — — — 885.25
Hedge of net investments in foreign operations
Nominal amount of the hedging instrument 15,876 ~~W~~ 236,670 ~~W~~ — ~~W~~ — ~~W~~ — ~~W~~ — ~~W~~ 252,546
Average price condition (/KRW) 1,071.00 1,178.91 — — — — 1,172.13

All values are in US Dollars.

65

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

8.3 Fair Value Hedge

8.3.1 Details of fair value hedged items as of September 30, 2025 and December 31, 2024 and changes in fair value for the nine-month periods ended September 30, 2025 and 2024, are as follows:

(In millions of Korean won) September 30, 2025 2025
Carrying amount Accumulated amount ofhedge adjustments Changes in<br>fair value
Assets Liabilities Assets Liabilities
Hedge accounting
Interest rate Debt securities in Korean won ~~W~~ 704,567 ~~W~~ — ~~W~~ (4,129 ) ~~W~~ — ~~W~~ 2,222
Debt securities in foreign currencies 1,365,825 — (2,264 ) — 34,812
Deposits in Korean won — 202,420 — 12,420 (9,180 )
Deposits in foreign currencies — 798,763 — (1,693 ) (5,913 )
Debentures in Korean won — 1,368,535 — (91,465 ) (17,600 )
Debentures<br>in foreign currencies — 789,516 — (23,760 ) (29,119 )
2,070,392 3,159,234 (6,393 ) (104,498 ) (24,778 )
Currency Debt securities in foreign currencies 1,586,966 — 318,380 — (65,730 )
1,586,966 — 318,380 — (65,730 )
~~W~~ 3,657,358 ~~W~~ 3,159,234 ~~W~~ 311,987 ~~W~~ (104,498 ) ~~W~~ (90,508 )

66

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

8.3.1 Details of fair value hedged items as of September 30, 2025 and December 31, 2024 and changes in fair value for the nine-month periods ended September 30, 2025 and 2024, are as follows: (cont’d)

(In millions of Korean won) December 31, 2024 2024
Carrying amount Accumulated amount ofhedge adjustments Changes in<br>fair value
Assets Liabilities Assets Liabilities
Hedge accounting
Interest rate Debt securities in Korean won ~~W~~ 2,062,063 ~~W~~ — ~~W~~ (15,065 ) ~~W~~ — ~~W~~ 23,303
Debt securities in foreign currencies 1,699,241 — (44,081 ) — 46,662
Deposits in Korean won — 246,258 — 6,258 (7,256 )
Deposits in foreign currencies — 301,107 — (7,593 ) (2,931 )
Debentures in Korean won — 2,320,923 — (109,077 ) (28,418 )
Debentures in foreign currencies — 1,523,883 — (63,717 ) (32,809 )
3,761,304 4,392,171 (59,146 ) (174,129 ) (1,449 )
Currency Debt securities in foreign currencies 1,798,273 — 301,740 — 68,392
1,798,273 — 301,740 — 68,392
~~W~~ 5,559,577 ~~W~~ 4,392,171 ~~W~~ 242,594 ~~W~~ (174,129 ) ~~W~~ 66,943

67

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

8.3.2 Details of derivative instruments designated as fair value hedge as of September 30, 2025 and December 31, 2024 and changes in fair value for the nine-month periods ended September 30, 2025 and 2024, are as follows:

(In millions of Korean won)
September 30, 2025 2025
Notionalamount Carrying amount Changes in<br>fair value
Assets Liabilities
Interest rate
Futures ~~W~~ 334,200 ~~W~~ — ~~W~~ — ~~W~~ 8,170
Swaps 5,138,359 85,400 25,700 16,218
5,472,559 85,400 25,700 24,388
Currency
Forwards 2,224,413 3,353 73,552 8,333
~~W~~ 7,696,972 ~~W~~ 88,753 ~~W~~ 99,252 ~~W~~ 32,721
December 31, 2024 2024
Notionalamount Carrying amount Changes in<br>fair value
Assets Liabilities
Interest rate
Futures ~~W~~ 720,000 ~~W~~ — ~~W~~ — ~~W~~ (4,675 )
Swaps 7,648,200 84,530 62,666 3,357
8,368,200 84,530 62,666 (1,318 )
Currency
Forwards 1,951,920 62 119,228 (61,356 )
~~W~~ 10,320,120 ~~W~~ 84,592 ~~W~~ 181,894 ~~W~~ (62,674 )

8.3.3 Details of hedge ineffectiveness recognized in profit or loss on derivative instruments designated as fair value hedge for the nine-month periods ended September 30, 2025 and 2024, are as follows:

(In millions of Korean won)
2025 2024
Hedge accounting
Interest rate ~~W~~ (390 ) ~~W~~ (5,989 )
Currency (57,397 ) 7,036
~~W~~ (57,787 ) ~~W~~ 1,047

8.3.4 Gains or losses on fair value hedging instruments and hedged items attributable to the hedged for the nine-month periods ended September 30, 2025 and 2024, are as follows:

(In millions of Korean won) 2025 2024
Gains (losses) on hedging instruments ~~W~~ 32,721 ~~W~~ (65,896 )
Gains (losses) on hedged items attributable to the hedged risk (98,169 ) 69,360
~~W~~ (65,448 ) ~~W~~ 3,464

68

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

8.4 Cash Flow Hedge

8.4.1 Details of cash flow hedged items as of September 30, 2025 and December 31, 2024 and changes in fair value for the nine-month periods ended September 30, 2025 and 2024, are as follows:

(In millions of Korean won)

Cash flow hedge reserve Changes in fair value
September 30,2025 December 31,<br>2024 2025 2024
Hedge accounting
Interest rate risk ~~W~~ 84,247 ~~W~~ 160,165 ~~W~~ 86,978 ~~W~~ 29,129
Currency risk (39,630 ) (51,847 ) 164,219 1,639
~~W~~ 44,617 ~~W~~ 108,318 ~~W~~ 251,197 ~~W~~ 30,768

8.4.2 Details of derivative instruments designated as cash flow hedge as of September 30, 2025 and December 31, 2024 and changes in fair value for the nine-month periods ended September 30, 2025 and 2024, are as follows:

(In millions of Koreanwon)

September 30, 2025 2025
Notionalamount Assets Liabilities Changes in<br>fair value
Interest rate
Forwards ~~W~~ 3,004,341 ~~W~~ 134,614 ~~W~~ 59,197 ~~W~~ (53,499 )
Swaps 2,918,961 24,037 14,252 (32,382 )
~~W~~ 5,923,302 ~~W~~ 158,651 ~~W~~ 73,449 ~~W~~ (85,881 )
Currency
Swaps 4,590,258 271,718 75,853 (180,929 )
~~W~~ 10,513,560 ~~W~~ 430,369 ~~W~~ 149,302 ~~W~~ (266,810 )

(In millions of Korean won)

December 31, 2024 2024
Notionalamount Assets Liabilities Changes in<br>fair value
Interest rate
Forwards ~~W~~ 1,705,449 ~~W~~ 179,580 ~~W~~ 8 ~~W~~ 50,396
Swaps 2,988,310 48,738 5,760 (44,153 )
~~W~~ 4,693,759 ~~W~~ 228,318 ~~W~~ 5,768 ~~W~~ 6,243
Currency
Swaps 5,057,834 462,986 181,828 25,392
~~W~~ 9,751,593 ~~W~~ 691,304 ~~W~~ 187,596 ~~W~~ 31,635

69

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

8.4.3 Gains or losses on cash flow hedging instruments and hedged items attributable to the hedged risk for the nine-month periods ended September 30, 2025 and 2024, are as follows:

(In millions of Korean won) 2025 2024
Gains (losses) on hedging instruments: ~~W~~ (266,810 ) ~~W~~ 31,635
Effective portion of gains (losses) on cash flow hedging instruments (recognized in other<br>comprehensive income or loss) (271,451 ) 34,923
Ineffective portion of gains on cash flow hedging instruments (recognized in profit or<br>loss) 4,641 (3,288 )

8.4.4 Amounts recognized in other comprehensive income (loss) and reclassified from equity to profit or loss related to derivative instruments designated as cash allow hedge for the nine-month periods ended September 30, 2025 and 2024, are as follows:

(In millions of Korean won) 2025 2024
Other comprehensive income (loss) ~~W~~ (271,451 ) ~~W~~ 34,923
Reclassification to profit or loss 184,832 (27,581 )
Income tax effect 22,845 (1,939 )
~~W~~ (63,774 ) ~~W~~ 5,403

8.5 Hedge of Net Investments in Foreign Operations

8.5.1 Details of net investments in foreign operations hedged items as of September 30, 2025 and December 31, 2024 and changes in fair value for the nine-month periods ended September 30, 2025 and 2024, are as follows:

(In millions of Korean won)

Foreign currency<br>translation reserve Changes in fair value
September 30,2025 December 31,<br>2024 2025 2024
Hedge accounting
Currency risk ~~W~~ (243,151 ) ~~W~~ (316,109 ) ~~W~~ (99,128 ) ~~W~~ 23,323

8.5.2 Details of financial instruments designated as hedge of net investments in foreign operations as of September 30, 2025 and December 31, 2024 and changes in fair value for the nine-month periods ended September 30, 2025 and 2024, are as follows:

(In millions of Korean won)

September 30, 2025 2025
Notionalamount Assets Liabilities Changes in<br>fair value
Currency
Forwards ~~W~~ 11,218 ~~W~~ — ~~W~~ 2,650 ~~W~~ 1,660
Debentures in foreign currencies 1,581,501 — 1,581,501 97,468
~~W~~ 1,592,719 ~~W~~ — ~~W~~ 1,584,151 ~~W~~ 99,128

70

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

8.5.2 Details of financial instruments designated as hedge of net investments in foreign operations as of September 30, 2025 and December 31, 2024 and changes in fair value for the nine-month periods ended September 30, 2025 and 2024, are as follows: (cont’d)

(In millions of Korean won)

December 31, 2024 2024
Notional<br>amount Assets Liabilities Changes in<br>fair value
Currency
Forwards ~~W~~ 15,876 ~~W~~ — ~~W~~ 4,309 ~~W~~ 2,622
Debentures in foreign currencies 2,077,155 — 2,077,155 (25,945 )
~~W~~ 2,093,031 ~~W~~ — ~~W~~ 2,081,464 ~~W~~ (23,323 )

8.5.3 Fair value of non-derivative financial instruments designated as hedge of net investments in foreign operations as of September 30, 2025 and December 31, 2024, are as follows:

(In millions of Korean won) September 30,<br>2025 December 31,<br>2024
Debentures in foreign currencies ~~W~~ 1,738,415 ~~W~~ 2,180,537

8.5.4 Gains or losses on net investments in foreign operations hedging instruments and hedged items attributable to the hedged risk for the nine-month periods ended September 30, 2025 and 2024, are as follows:

(In millions of Korean won) 2025 2024
Gains (losses) on hedging instruments: ~~W~~ 99,128 ~~W~~ (23,323 )
Effective portion of gains(losses) on hedge of net investments in foreign operations (recognized<br>in other comprehensive income or loss) 99,128 (23,323 )
Ineffective portion of losses on hedge of net investments in foreign operations (recognized in<br>profit or loss) — —

8.5.5 Effective portion of gains or losses on net investments in foreign operations hedging instruments recognized in other comprehensive income (loss) for the nine-month periods ended September 30, 2025 and 2024, are as follows:

(In millions of Korean won) 2025 2024
Other comprehensive loss ~~W~~ 99,128 ~~W~~ (23,323 )
Reclassification to profit or loss — —
Income tax effect (26,170 ) 6,157
~~W~~ 72,958 ~~W~~ (17,166 )

71

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

9. Loans Measured at Amortized Cost

9.1 Details of loans as of September 30, 2025 and December 31, 2024, are as follows:

(In millions of Korean won) September 30,<br>2025 December 31,<br>2024
Loans measured at amortized cost ~~W~~ 491,469,852 ~~W~~ 477,066,990
Deferred loan origination fees and costs 597,318 638,230
Less: Allowances for credit losses (5,547,429 ) (5,633,380 )
~~W~~ 486,519,741 ~~W~~ 472,071,840

9.2 Details of loans to banks as of September 30, 2025 and December 31, 2024, are as follows:

(In millions of Korean won) September 30,<br>2025 December 31,<br>2024
Loans measured at amortized cost ~~W~~ 8,885,293 ~~W~~ 9,830,773
Less: Allowances for credit losses (3,628 ) (31,158 )
~~W~~ 8,881,665 ~~W~~ 9,799,615

9.3 Details of loan types and customer types of loans to customers other than banks as of September 30, 2025 and December 31, 2024, are as follows:

(In millions of Korean won) September 30, 2025
Retail Corporate Credit card Total
Loans in Korean won ~~W~~ 193,981,265 ~~W~~ 212,517,666 ~~W~~ — ~~W~~ 406,498,931
Loans in foreign currencies 6,128,084 25,137,698 — 31,265,782
Domestic import usance bills — 3,934,040 — 3,934,040
Off-shore funding loans — 1,039,793 — 1,039,793
Call loans — 2,578,455 — 2,578,455
Bills bought in Korean won — 1,296 — 1,296
Bills bought in foreign currencies — 2,287,553 — 2,287,553
Guarantee payments under acceptances and guarantees — 8,240 — 8,240
Credit card receivables in Korean won — — 22,943,859 22,943,859
Credit card receivables in foreign currencies — — 36,593 36,593
Bonds purchased under repurchase agreements — 4,046,018 — 4,046,018
Privately placed bonds — 398,116 — 398,116
Factored receivables 451 67,116 — 67,567
Lease receivables 416,623 115,093 — 531,716
Loans for installment credit 6,677,363 866,555 — 7,543,918
207,203,786 252,997,639 22,980,452 483,181,877
Proportion (%) 42.88 52.36 4.76 100.00
Less: Allowances for credit losses (1,585,004 ) (3,200,246 ) (758,551 ) (5,543,801 )
~~W~~ 205,618,782 ~~W~~ 249,797,393 ~~W~~ 22,221,901 ~~W~~ 477,638,076

72

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

9.3 Details of loan types and customer types of loans to customers other than banks as of September 30, 2025 and December 31, 2024, are as follows: (cont’d)

(In millions of Korean won) December 31, 2024
Retail Corporate Credit card Total
Loans in Korean won ~~W~~ 188,109,614 ~~W~~ 203,391,791 ~~W~~ — ~~W~~ 391,501,405
Loans in foreign currencies 5,978,891 26,954,295 — 32,933,186
Domestic import usance bills — 3,790,808 — 3,790,808
Off-shore funding loans — 626,058 — 626,058
Bills bought in Korean won — 1,862 — 1,862
Bills bought in foreign currencies — 2,379,270 — 2,379,270
Guarantee payments under acceptances and guarantees — 16,930 — 16,930
Credit card receivables in Korean won — — 23,436,170 23,436,170
Credit card receivables in foreign currencies — — 42,304 42,304
Bonds purchased under repurchase agreements — 4,967,067 — 4,967,067
Privately placed bonds — 389,783 — 389,783
Factored receivables 7 62,602 — 62,609
Lease receivables 406,844 194,057 — 600,901
Loans for installment credit 6,327,692 798,402 — 7,126,094
200,823,048 243,572,925 23,478,474 467,874,447
Proportion (%) 42.92 52.06 5.02 100.00
Less: Allowances for credit losses (1,587,817 ) (3,137,665 ) (876,740 ) (5,602,222 )
~~W~~ 199,235,231 ~~W~~ 240,435,260 ~~W~~ 22,601,734 ~~W~~ 462,272,225

73

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

10. Allowances for Credit Losses

10.1 Changes in allowances for credit losses of loans measured at amortized cost for the nine-month periods ended September 30, 2025 and 2024, are as follows:

(In millions of Korean won) 2025
Retail Corporate Credit card
12-monthexpected<br>credit losses Lifetime expected creditlosses 12-monthexpectedcredit losses Lifetime expected creditlosses 12-monthexpectedcredit losses Lifetime expected creditlosses
Not<br>impaired Impaired Not<br>impaired Impaired Not<br>impaired Impaired
Beginning ~~W~~ 607,351 ~~W~~ 331,435 ~~W~~ 649,031 ~~W~~ 913,140 ~~W~~ 923,564 ~~W~~ 1,332,119 ~~W~~ 240,434 ~~W~~ 372,640 ~~W~~ 263,666
Transfer between stages:
Transfer to 12-month expected credit losses 131,934 (121,499 ) (10,435 ) 200,175 (194,810 ) (5,365 ) 44,991 (44,816 ) (175 )
Transfer to lifetime expected credit losses (115,311 ) 143,167 (27,856 ) (218,805 ) 274,440 (55,635 ) (33,531 ) 34,110 (579 )
Impairment (24,775 ) (79,773 ) 104,548 (21,423 ) (181,106 ) 202,529 (3,127 ) (10,673 ) 13,800
Write-offs — (1 ) (580,259 ) — (7 ) (443,879 ) — — (427,277 )
Sales (1,284 ) (1,988 ) (56,399 ) (68 ) (2,405 ) (144,221 ) (4,296 ) (63,689 ) (102,524 )
Provision (reversal) for credit losses<br>^1,2^ (22,213 ) 45,863 657,647 (9,781 ) 123,169 619,967 (24,876 ) 53,352 478,882
Others (exchange differences, etc.) (1,613 ) (1,016 ) (41,550 ) (9,394 ) (2,785 ) (95,545 ) (87 ) (68 ) (27,606 )
Ending ~~W~~ 574,089 ~~W~~ 316,188 ~~W~~ 694,727 ~~W~~ 853,844 ~~W~~ 940,060 ~~W~~ 1,409,970 ~~W~~ 219,508 ~~W~~ 340,856 ~~W~~ 198,187

74

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

10.1 Changes in allowances for credit losses of loans measured at amortized cost for the nine-month periods ended September 30, 2025 and 2024, are as follows: (cont’d)

(In millions of Korean won) 2024
Retail Corporate Credit card
12-monthexpected<br>credit losses Lifetime expected creditlosses 12-monthexpectedcredit losses Lifetime expected creditlosses 12-monthexpectedcredit losses Lifetime expected credit<br>losses
Not impaired Impaired Not<br>impaired Impaired Notimpaired Impaired
Beginning ~~W~~ 584,650 ~~W~~ 283,382 ~~W~~ 501,049 ~~W~~ 939,640 ~~W~~ 935,715 ~~W~~ 1,282,544 ~~W~~ 206,525 ~~W~~ 328,152 ~~W~~ 401,148
Transfer between stages:
Transfer to 12-month expected credit losses 112,608 (105,442 ) (7,166 ) 312,496 (272,404 ) (40,092 ) 55,747 (54,350 ) (1,397 )
Transfer to lifetime expected credit losses (89,467 ) 115,727 (26,260 ) (232,524 ) 269,188 (36,664 ) (26,353 ) 30,084 (3,731 )
Impairment (18,666 ) (73,152 ) 91,818 (53,513 ) (134,599 ) 188,112 (4,372 ) (28,969 ) 33,341
Write-offs — — (458,467 ) — (1 ) (363,960 ) — — (492,181 )
Sales (2,163 ) (1,217 ) (56,693 ) — (458 ) (82,342 ) — — —
Provision (reversal) for credit losses<br>^1,2^ 20,773 55,901 592,645 (85,320 ) 52,147 373,377 (3,066 ) 21,452 588,607
Others (exchange differences, etc.) 326 36 (4,126 ) (6,866 ) (173 ) (3,358 ) (15 ) 6 (156,545 )
Ending ~~W~~ 608,061 ~~W~~ 275,235 ~~W~~ 632,800 ~~W~~ 873,913 ~~W~~ 849,415 ~~W~~ 1,317,617 ~~W~~ 228,466 ~~W~~ 296,375 ~~W~~ 369,242
^1^ Provision for credit losses in the consolidated statements of comprehensive income also includes provision<br>(reversal) for credit losses of due from financial institutions (Note 7.3), provision (reversal) for credit losses of debt securities (Note 11.5), provision (reversal) for credit losses of unused commitments, acceptances and guarantees (Note 17.2),<br>provision (reversal) for credit losses of financial guarantee contracts (Note 17.3), and provision (reversal) for credit losses of other financial assets.
--- ---
^2^ Includes ~~W~~ 281,521 million and ~~W~~ 225,060 million of collections<br>from written-off loans for the nine-month periods ended September 30, 2025 and 2024, respectively.
--- ---

The amount of financial assets that the Group wrote off during the current year but is continuing recovery activities is ~~W~~ 1,432,524 million and ~~W~~ 1,314,609 million for the nine-month periods ended September 30, 2025 and 2024, respectively. Also, the Group manages the written-off loans that their legal extinctive prescriptions have not been completed, and that have not been collected. The balances of those loans are ~~W~~ 11,788,730 million and ~~W~~ 11,468,928 million as of September 30, 2025 and December 31, 2024, respectively.

75

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

10.2 Changes in gross carrying amount of loans for the nine-month periods ended September 30, 2025 and 2024, are as follows:

(In millions of Korean won) 2025
12-month<br>expected<br>credit losses Lifetime expected credit losses
Not impaired Impaired
Beginning ~~W~~ 431,753,998 ~~W~~ 40,940,591 ~~W~~ 5,010,631
Transfer between stages:
Transfer to 12-month expected credit losses 25,185,853 (25,128,455 ) (57,398 )
Transfer to lifetime expected credit losses (not impaired) (38,624,413 ) 39,703,778 (1,079,365 )
Transfer to lifetime expected credit losses (impaired) (783,450 ) (3,345,699 ) 4,129,149
Write-offs — (7 ) (1,451,416 )
Sales (791,952 ) (253,126 ) (1,198,596 )
Net increase (decrease)<br><br><br>(execution, repayment, and others) 23,663,834 (5,103,665 ) (503,122 )
Ending ~~W~~ 440,403,870 ~~W~~ 46,813,417 ~~W~~ 4,849,883
(In millions of Korean won) 2024
--- --- --- --- --- --- --- --- --- --- --- ---
12-month<br>expected<br>credit losses Lifetime expected credit losses
Not impaired Impaired
Beginning ~~W~~ 408,283,402 ~~W~~ 37,076,587 ~~W~~ 4,908,103
Transfer between stages:
Transfer to 12-month expected credit losses 24,011,315 (23,662,216 ) (349,099 )
Transfer to lifetime expected credit losses (not impaired) (30,937,842 ) 31,612,905 (675,063 )
Transfer to lifetime expected credit losses (impaired) (1,319,025 ) (2,767,186 ) 4,086,211
Write-offs — (1 ) (1,314,608 )
Sales (2,740,050 ) (81,609 ) (716,362 )
Net increase (decrease)<br><br><br>(execution, repayment, and others) 29,484,554 (2,743,704 ) (698,638 )
Ending ~~W~~ 426,782,354 ~~W~~ 39,434,776 ~~W~~ 5,240,544

76

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

11. Financial Assets at Fair Value through Profit or Loss and Financial Investments

11.1 Details of financial assets at fair value through profit or loss and financial investments as of September 30, 2025 and December 31, 2024, are as follows:

(In millions of Korean won) September 30,<br>2025 December 31,<br>2024
Financial assets at fair value through profit or loss
Debt securities:
Government and public bonds ~~W~~ 15,437,595 ~~W~~ 13,389,804
Financial bonds 15,642,289 11,601,280
Corporate bonds 7,871,210 7,323,299
Asset-backed securities 29,715 39,444
Beneficiary certificates 25,597,325 20,644,681
Derivative-linked securities 2,102,162 1,924,109
Other debt securities 19,058,566 18,846,019
Equity securities:
Stocks 5,525,013 3,964,021
Other equity securities 369,792 311,316
Loans:
Privately placed bonds 220,752 208,856
Other loans 679,154 978,907
Due from financial institutions:
Other due from financial institutions 66,191 59,838
Others 301,251 158,519
~~W~~ 92,901,015 ~~W~~ 79,450,093
Financial investments ****
Financial assets at fair value through other comprehensive income
Debt securities:
Government and public bonds ~~W~~ 41,934,778 ~~W~~ 38,108,213
Financial bonds 23,896,322 26,091,249
Corporate bonds 23,652,255 22,059,099
Asset-backed securities 2,206,985 2,366,140
Other debt securities 192,014 111,295
Equity securities:
Stocks 1,772,792 1,643,898
Equity investments 14,123 9,410
Other equity securities 2,611,102 2,059,980
Loans:
Privately placed bonds 1,639,882 1,446,628
97,920,253 93,895,912
Financial assets at amortized cost
Debt securities:
Government and public bonds 5,213,011 6,029,059
Financial bonds 13,068,267 12,761,712
Corporate bonds 8,239,469 8,946,009
Asset-backed securities 7,418,193 9,321,199
Other debt securities 213,533 72,969
Less: Allowances for credit losses (16,650 ) (17,396 )
34,135,823 37,113,552
~~W~~ 132,056,076 ~~W~~ 131,009,464

77

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

11.2 Dividend income from equity securities designated at fair value through other comprehensive income for the nine-month periods ended September 30, 2025 and 2024, are as follows:

(In millions of Korean won) 2025 2024
From the<br>equitysecuritiesderecognized From the<br>equity<br>securities<br>held From the<br>equitysecuritiesderecognized From the<br>equitysecurities<br>held
Equity securities measured at fair value through other comprehensive income:
Stocks Listed ~~W~~ 1,420 ~~W~~ 11,282 ~~W~~ — ~~W~~ 3,597
Unlisted — 19,602 — 19,723
Equity investments — 302 — —
Other equity securities 735 83,172 632 40,273
~~W~~ 2,155 ~~W~~ 114,358 ~~W~~ 632 ~~W~~ 63,593

11.3 Derecognized equity securities measured at fair value through other comprehensive income for the nine-month periods ended September 30, 2025 and 2024, are as follows:

(In millions of Korean won) 2025 2024
Disposal<br>price Accumulated othercomprehensiveincome (loss)<br>as of<br>disposal date Disposal<br>price Accumulated othercomprehensiveincome (loss)<br>as of<br>disposal date
Equity securities measured at fair value through other comprehensive income:
Stocks Listed ~~W~~ 31,700 ~~W~~ (5,683 ) ~~W~~ 8,054 ~~W~~ (5,586 )
Unlisted 3,446 609 — —
Other equity securities 176,243 232 131,788 1,788
~~W~~ 211,389 ~~W~~ (4,842 ) ~~W~~ 139,842 ~~W~~ (3,798 )

78

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

11.4 Provision (reversal) for credit losses of financial investments for the nine-month periods ended September 30, 2025 and 2024, are as follows:

(In millions of Korean won) 2025
Provision Reversal Total
Securities measured at fair value through other comprehensive income ~~W~~ 5,325 ~~W~~ (5,632 ) ~~W~~ (307 )
Loans measured at fair value through other comprehensive income 143 — 143
Securities measured at amortized cost 3,422 (4,092 ) (670 )
~~W~~ 8,890 ~~W~~ (9,724 ) ~~W~~ (834 )
(In millions of Korean won) 2024
Provision Reversal Total
Securities measured at fair value through other comprehensive income ~~W~~ 6,371 ~~W~~ (5,082 ) ~~W~~ 1,289
Loans measured at fair value through other comprehensive income 558 (174 ) 384
Securities measured at amortized cost 1,609 (2,374 ) (765 )
~~W~~ 8,538 ~~W~~ (7,630 ) ~~W~~ 908

11.5 Changes in allowances for credit losses of financial investments for the nine-month periods ended September 30, 2025 and 2024, are as follows:

(In millions of Korean won) 2025
12-month expected<br>credit losses Lifetime expected credit losses
Not impaired Impaired
Beginning ~~W~~ 43,031 ~~W~~ — ~~W~~ 82
Transfer between stages:
Transfer to 12-month expected credit losses — — —
Transfer to lifetime expected credit losses — — —
Sales (2,707 ) — —
Reversal for credit losses (833 ) — (1 )
Others (177 ) — —
Ending ~~W~~ 39,314 ~~W~~ — ~~W~~ 81
(In millions of Korean won) 2024
12-month expected<br>credit losses Lifetime expected credit losses
Not impaired Impaired
Beginning ~~W~~ 44,465 ~~W~~ — ~~W~~ 77
Transfer between stages:
Transfer to 12-month expected credit losses — — —
Transfer to lifetime expected credit losses — — —
Sales (1,584 ) — —
Provision for credit losses 903 — 5
Others 539 — —
Ending ~~W~~ 44,323 ~~W~~ — ~~W~~ 82

79

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

12. Deferred Income Tax Assets and Liabilities

Details of deferred income tax assets and liabilities as of September 30, 2025 and December 31, 2024, are as follows:

(In millions of Korean won) September 30, 2025
Assets Liabilities Net amount
Other provisions ~~W~~ 205,616 ~~W~~ — ~~W~~ 205,616
Allowances for credit losses 19,662 (2,587 ) 17,075
Impairment losses of property and equipment 16,525 (887 ) 15,638
Interest on equity-indexed deposits 174 — 174
Share-based payments 41,611 — 41,611
Provisions for acceptances and guarantees 14,217 (216 ) 14,001
Gains or losses on valuation of derivatives 180,462 (216,147 ) (35,685 )
Present value discount 10,766 (298 ) 10,468
Gains or losses on fair value hedge — (27,458 ) (27,458 )
Accrued interest — (236,480 ) (236,480 )
Deferred loan origination fees and costs 15,750 (190,776 ) (175,026 )
Advanced depreciation provision — (4,003 ) (4,003 )
Gains or losses on revaluation 312 (287,281 ) (286,969 )
Investments in subsidiaries and others 80,487 (247,947 ) (167,460 )
Gains or losses on valuation of security investment 470,643 (471,611 ) (968 )
Defined benefit liabilities 616,760 — 616,760
Accrued expenses 313,298 — 313,298
Retirement insurance expense — (620,972 ) (620,972 )
Adjustments to the prepaid contributions — (68,483 ) (68,483 )
Derivative-linked securities 19,612 (29,996 ) (10,384 )
Others * 1,236,839 (2,234,937 ) (998,098 )
3,242,734 (4,640,079 ) (1,397,345 )
Offsetting of deferred income tax assets and liabilities (3,047,611 ) 3,047,611 —
~~W~~ 195,123 ~~W~~ (1,592,468 ) ~~W~~ (1,397,345 )

80

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

12. Deferred Income Tax Assets and Liabilities (cont’d)

(In millions of Korean won) December 31, 2024
Assets Liabilities Net amount
Other provisions ~~W~~ 219,460 ~~W~~ — ~~W~~ 219,460
Allowances for credit losses 17,060 — 17,060
Impairment losses of property and equipment 10,543 (1,359 ) 9,184
Share-based payments 36,962 — 36,962
Provisions for acceptances and guarantees 16,172 (163 ) 16,009
Gains or losses on valuation of derivatives 296,164 (225,773 ) 70,391
Present value discount 11,952 (14 ) 11,938
Gains or losses on fair value hedge — (45,741 ) (45,741 )
Accrued interest 1,679 (262,437 ) (260,758 )
Deferred loan origination fees and costs 16,278 (189,207 ) (172,929 )
Advanced depreciation provision — (4,003 ) (4,003 )
Gains or losses on revaluation 313 (290,227 ) (289,914 )
Investments in subsidiaries and others 77,426 (248,692 ) (171,266 )
Gains or losses on valuation of security investment 489,018 (448,460 ) 40,558
Defined benefit liabilities 619,544 — 619,544
Accrued expenses 365,702 — 365,702
Retirement insurance expense — (590,749 ) (590,749 )
Adjustments to the prepaid contributions — (49,134 ) (49,134 )
Derivative-linked securities 6,883 (86,112 ) (79,229 )
Others * 1,244,462 (2,391,015 ) (1,146,553 )
3,429,618 (4,833,086 ) (1,403,468 )
Offsetting of deferred income tax assets and liabilities (3,150,794 ) 3,150,794 —
~~W~~ 278,824 ~~W~~ (1,682,292 ) ~~W~~ (1,403,468 )
* Includes Purchase Price Allocation (“PPA”) amount arising from the acquisition of KB Life Insurance<br>Co., Ltd. and KB Insurance Co., Ltd.
--- ---

81

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

13. Financial Liabilities at Fair Value through Profit or Loss

13.1 Details of financial liabilities at fair value through profit or loss and financial liabilities designated at fair value through profit or loss as of September 30, 2025 and December 31, 2024, are as follows:

(In millions of Korean won) September 30,<br>2025 December 31,  2024
Financial liabilities at fair value through profit or loss
Borrowed securities sold ~~W~~ 2,481,623 ~~W~~ 2,558,520
Others 305,547 159,212
2,787,170 2,717,732
Financial liabilities designated at fair value through profit or loss
Derivative-linked securities 7,557,141 8,002,499
7,557,141 8,002,499
~~W~~ 10,344,311 ~~W~~ 10,720,231

13.2 Difference between the amount contractually required to pay at maturity and carrying amount of financial liabilities designated at fair value through profit or loss as of September 30, 2025 and December 31, 2024 are as follows:

(In millions of Korean won) September 30,<br>2025 December 31,  2024
Amount contractually required to pay at maturity ~~W~~ 7,467,994 ~~W~~ 7,947,236
Carrying amount 7,557,141 8,002,499
Difference ~~W~~ (89,147 ) ~~W~~ (55,263 )

82

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

14. Deposits

Details of deposits as of September 30, 2025 and December 31, 2024 are as follows:

(In millions of Korean won) September 30,<br>2025 December 31,<br>2024
Demand deposits
Demand deposits in Korean won ~~W~~ 171,484,565 ~~W~~ 156,242,487
Demand deposits in foreign currencies 13,886,444 13,667,783
185,371,009 169,910,270
Time deposits
Time deposits in Korean won 218,113,808 221,342,787
Fair value adjustments of fair value hedged time deposits in Korean won 12,420 6,258
218,126,228 221,349,045
Time deposits in foreign currencies 26,207,462 28,299,460
Fair value adjustments of fair value hedged time deposits in foreign currencies (1,693 ) (7,593 )
26,205,769 28,291,867
244,331,997 249,640,912
Certificates of deposits 10,981,355 9,805,371
Investment contract liabilities 8,027,632 6,331,344
~~W~~ 448,711,993 ~~W~~ 435,687,897

83

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

15. Borrowings

15.1 Details of borrowings as of September 30, 2025 and December 31, 2024, are as follows:

(In millions of Korean won) September 30,<br>2025 December 31,<br>2024
General borrowings ~~W~~ 54,371,025 ~~W~~ 52,433,193
Bonds sold under repurchase agreements and others 11,845,794 12,803,106
Call money 2,573,199 2,840,713
~~W~~ 68,790,018 ~~W~~ 68,077,012

15.2 Details of general borrowings as of September 30, 2025 and December 31, 2024, are as follows:

(In millions of Korean won) Lenders Interest rate(%) as ofSeptember 30,2025 September 30,<br>2025 December 31,<br>2024
Borrowings in Korean won Borrowings from the Bank of Korea The Bank of Korea 1.00 ~~W~~ 7,152,396 ~~W~~ 4,618,026
Borrowings from the government SEMAS and others 0.00 ~ 3.50 2,471,270 2,409,409
Borrowings from banks Korea Development Bank and others 2.20 ~ 6.50 1,265,903 1,267,487
Borrowings from non-banking financial institutions Korea Securities Finance Corporation and others 0.48 ~ 6.50 2,793,961 3,014,113
Other borrowings KOSME and others 0.00 ~ 7.50 23,266,083 22,294,928
36,949,613 33,603,963
Borrowings in foreign currencies Due to banks Hana Bank and others — 8,884 15,155
Borrowings from banks CITICORP INTERNATIONAL LTD and others 0.00 ~ 10.50 14,156,100 15,914,710
Borrowings from other financial institutions The Export-Import Bank of Korea 4.75 ~ 4.93 5,749 6,027
Other borrowings THE BANK OF NEW YORK MELLON, HONG KONG and others 0.00  ~ 9.40 3,250,679 2,893,338
17,421,412 18,829,230
~~W~~ 54,371,025 ~~W~~ 52,433,193

84

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

16. Debentures

16.1 Details of debentures as of September 30, 2025 and December 31, 2024, are as follows:

(In millions of Korean won) Interest rate(%) as of<br>September 30,2025 September 30,<br>2025 December 31,<br>2024
Debentures in Korean won
Structured debentures 3.45 ~ 5.86 ~~W~~ 90,440 ~~W~~ 20,560
Subordinated fixed rate debentures 2.02 ~ 4.90 5,045,150 4,445,150
Fixed rate debentures 1.33 ~ 7.20 54,890,519 54,370,733
Floating rate debentures 2.56 ~ 5.20 1,849,500 1,250,000
61,875,609 60,086,443
Fair value adjustments of fair value hedged debentures in Korean won (90,973 ) (108,207 )
Less: Discount on debentures in Korean won (94,523 ) (57,075 )
61,690,113 59,921,161
Debentures in foreign currencies
Floating rate debentures 1.96 ~ 5.46 3,286,897 3,122,201
Fixed rate debentures 0.05 ~ 9.06 12,272,096 13,229,773
15,558,993 16,351,974
Fair value adjustments of fair value hedged debentures in foreign currencies (23,760 ) (63,717 )
Less: Discount on debentures in foreign currencies (39,821 ) (38,161 )
15,495,412 16,250,096
~~W~~ 77,185,525 ~~W~~ 76,171,257

85

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

17. Provisions

17.1 Details of provisions as of September 30, 2025 and December 31, 2024, are as follows:

(In millions of Korean won) September 30,<br>2025 December 31,<br>2024
Provisions for credit losses of unused loan commitments ~~W~~ 271,862 ~~W~~ 297,855
Provisions for credit losses of acceptances and guarantees 50,435 56,097
Provisions for credit losses of financial guarantee contracts 4,811 7,378
Provisions for restoration costs 179,536 180,590
Others 355,381 385,712
~~W~~ 862,025 ~~W~~ 927,632

17.2 Changes in provisions for credit losses of unused loan commitments, and acceptances and guarantees for the nine-month periods ended September 30, 2025 and 2024, are as follows:

(In millions of Korean won)
2025
Provisions for credit losses of<br>unused loan commitments Provisions for credit losses of<br>acceptances and guarantees
12-monthexpectedcredit losses Lifetime expected credit losses 12-monthexpectedcredit losses Lifetime expected credit losses
Not<br>impaired Impaired Not<br>impaired Impaired
Beginning ~~W~~ 216,995 ~~W~~ 78,975 ~~W~~ 1,885 ~~W~~ 39,465 ~~W~~ 2,487 ~~W~~ 14,145
Transfer between stages:
Transfer to 12-month expected credit losses 24,916 (24,808 ) (108 ) 116 (116 ) —
Transfer to lifetime expected credit losses (16,553 ) 18,388 (1,835 ) (826 ) 862 (36 )
Impairment (1,496 ) (3,177 ) 4,673 (48 ) (165 ) 213
Provision (reversal) for credit losses (29,027 ) 6,737 (2,448 ) (4,872 ) 3,541 (3,387 )
Others (exchange differences, etc.) (1,155 ) (84 ) (16 ) (769 ) (38 ) (137 )
Ending ~~W~~ 193,680 ~~W~~ 76,031 ~~W~~ 2,151 ~~W~~ 33,066 ~~W~~ 6,571 ~~W~~ 10,798

86

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

17.2 Changes in provisions for credit losses of unused loan commitments, and acceptances and guarantees for the nine-month periods ended September 30, 2025 and 2024, are as follows: (cont’d)

(In millions of Korean won)
2024
Provisions for credit losses of<br>unused loan commitments Provisions for credit losses of<br>acceptances and guarantees
12-monthexpectedcredit losses Lifetime expected credit losses 12-monthexpectedcredit losses Lifetime expected credit losses
Not<br>impaired Impaired Not<br>impaired Impaired
Beginning ~~W~~ 232,674 ~~W~~ 136,318 ~~W~~ 10,674 ~~W~~ 30,849 ~~W~~ 148,197 ~~W~~ 4,408
Transfer between stages:
Transfer to 12-month expected credit losses 42,064 (39,440 ) (2,624 ) 826 (826 ) —
Transfer to lifetime expected credit losses (16,985 ) 17,215 (230 ) (459 ) 459 —
Impairment (1,004 ) (2,967 ) 3,971 (52 ) (81 ) 133
Provision (reversal) for credit losses (38,792 ) 17,315 (2,508 ) 1,021 (9,291 ) 10,004
Others (exchange differences, etc.) (3,517 ) 615 — 363 1,851 48
Ending ~~W~~ 214,440 ~~W~~ 129,056 ~~W~~ 9,283 ~~W~~ 32,548 ~~W~~ 140,309 ~~W~~ 14,593

17.3 Changes in provisions for credit losses of financial guarantee contracts for the nine-month periods ended September 30, 2025 and 2024, are as follows:

(In millions of Korean won) 2025 2024
Beginning ~~W~~ 7,378 ~~W~~ 6,500
Provision (reversal) (937 ) 718
Others (1,630 ) —
Ending ~~W~~ 4,811 ~~W~~ 7,218

87

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

17.4 Changes in provisions for restoration costs for the nine-month periods ended September 30, 2025 and 2024, are as follows:

(In millions of Korean won) 2025 2024
Beginning ~~W~~ 180,590 ~~W~~ 155,214
Provision 7,279 5,997
Reversal (1,628 ) (842 )
Used (10,417 ) (3,487 )
Unwinding of discount 3,780 3,921
Effect of changes in discount rate (68 ) 33
Ending ~~W~~ 179,536 ~~W~~ 160,836

Provisions for restoration costs are the present value of estimated costs to be incurred for the restoration of the leased properties. The expenditure of the restoration cost will be incurred at the end of each lease contract, and the lease period is used to reasonably estimate the time of expenditure. Also, the average restoration expense based on actual three-year historical data and three-year historical average inflation rate are used to estimate the present value of estimated costs.

17.5 Changes in other provisions for the nine-month periods ended September 30, 2025 and 2024, are as follows:

(In millions of Korean won) 2025
Membershiprewardsprogram Dormantaccounts Litigations Others^1 2 3^ Total
Beginning^1 2 3^ ~~W~~ 73 ~~W~~ 3,153 ~~W~~ 156,214 ~~W~~ 226,272 ~~W~~ 385,712
Increase 77 10,707 14,445 103,307 128,536
Decrease (59 ) (9,085 ) (53,192 ) (95,552 ) (157,888 )
Others — — (977 ) (2 ) (979 )
Ending^1 2 3^ ~~W~~ 91 ~~W~~ 4,775 ~~W~~ 116,490 ~~W~~ 234,025 ~~W~~ 355,381
(In millions of Korean won) 2024
Membershiprewardsprogram Dormantaccounts Litigations Others Total
Beginning ~~W~~ 47 ~~W~~ 3,359 ~~W~~ 185,667 ~~W~~ 530,511 ~~W~~ 719,584
Increase 57 1,881 13,605 783,335 798,878
Decrease (38 ) (2,303 ) (54,916 ) (978,193 ) (1,035,450 )
Others — — 1,101 1 1,102
Ending ~~W~~ 66 ~~W~~ 2,937 ~~W~~ 145,457 ~~W~~ 335,654 ~~W~~ 484,114
^1^ Includes other provisions of ~~W~~ 9,337 million and ~~W~~ 17,064 million<br>related to the Livelihood finance support program as of September 30, 2025 and December 31, 2024, respectively
--- ---
^2^ Includes other provisions of ~~W~~ 33,170 million and ~~W~~ 55,182 million<br>related to the voluntary compensation for the performance of the Hang Seng China Enterprise Index as of September 30, 2025 and December 31, 2024, respectively.
--- ---
^3^ Includes other provisions of 97,120 million and 33,776 million related to completion-guaranteed land<br>trust projects of KB Real Estate Trust Co., Ltd. as of September 30, 2025 and December 31, 2024, respectively.
--- ---

88

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

18. Net Defined Benefit Liabilities (assets)

18.1 Defined Benefit Plan

The Group operates defined benefit plans which have the following characteristics:

• The Group has the obligation to pay the agreed benefits to all its current and former employees.<br>
• The Group assumes actuarial risk (that benefits will cost more than expected) and investment risk.<br>
--- ---

The net defined benefit liabilities recognized in the consolidated statement of financial position are calculated by the independent actuary in accordance with actuarial valuation method. The defined benefit obligation is calculated using the projected unit credit method. Assumptions based on market data and historical data such as discount rate, future salary increase rate, mortality, and consumer price index are used which are updated annually.

Actuarial assumptions may differ from actual results, due to changes in the market conditions, economic trends, and mortality trends which may affect net defined benefit liabilities and future payments. Actuarial gains and losses arising from changes in actuarial assumptions are recognized in the period incurred through other comprehensive income.

18.2 Details of net defined benefit liabilities (assets) as of September 30, 2025 and December 31, 2024, are as follows:

(In millions of Korean won) September 30,<br>2025 December 31,<br>2024
Present value of defined benefit obligation ~~W~~ 2,524,188 ~~W~~ 2,537,534
Fair value of plan assets (2,719,294 ) (2,695,847 )
Net defined benefit liabilities * ~~W~~ (195,106 ) ~~W~~ (158,313 )
* As of September 30, 2025, the net defined benefit asset of ~~W~~ 195,106 million is the<br>amount obtained by subtracting the net defined benefit liability of ~~W~~ 89,425 million from the net defined benefit asset of ~~W~~ 284,531 million. Similarly, as of December 31, 2024, the net defined benefit<br>asset of ~~W~~ 158,313 million is the amount obtained by subtracting the net defined benefit liability of ~~W~~ 100,187 million from the net defined benefit asset of ~~W~~ 258,500 million.<br>
--- ---

18.3 Details of post-employment benefits recognized in profit or loss for the nine-month periods ended September 30, 2025 and 2024, are as follows:

(In millions of Korean won) 2025 2024
Current service cost ~~W~~ 169,738 ~~W~~ 162,524
Past service cost 187 —
Net interest expense on net defined benefit liabilities (5,386 ) (10,181 )
Losses from retirement benefit settlement (104 ) —
Post-employment benefits * ~~W~~ 164,435 ~~W~~ 152,343
* Includes post-employment benefits amounting to ~~W~~ 18,746 million recognized as insurance<br>service expenses, ~~W~~ 2,740 million recognized as other operating expenses and ~~W~~ 59 million recognized as advanced payments for the nine-month period ended September 30, 2025 and ~~W~~<br>15,286 million recognized as insurance service expenses, ~~W~~ 2,470 million recognized as other operating expenses and ~~W~~ 34 million recognized as advanced payments for the nine-month period ended<br>September 30, 2024.
--- ---

89

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

19. Equity

19.1 Share Capital

19.1.1 Details of share capital as of September 30, 2025 and December 31, 2024, are as follows:

(In millions of Korean won and in number of shares) September 30,<br>2025 December 31,<br>2024
Type of share Ordinary share Ordinary share
Number of authorized shares 1,000,000,000 1,000,000,000
Par value per share (In Korean won) ~~W~~ 5,000 ~~W~~ 5,000
Number of issued shares 381,462,103 393,528,423
Share capital * ~~W~~ 2,090,558 ~~W~~ 2,090,558
* Due to the retirement of shares deducted through retained earnings, it is different from the total par value of<br>the shares issued.
--- ---

19.1.2 Changes in outstanding shares for the nine-month periods ended September 30, 2025 and 2024, are as follows:

(In number of shares) 2025 2024
Beginning 373,600,719 378,663,825
Increase — 5,000,000
Decrease (11,448,744 ) (6,448,135 )
Ending 362,151,975 377,215,690

90

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

19.2 Hybrid Securities

Details of hybrid securities classified as equity as of September 30, 2025 and December 31, 2024, are as follows:

(In millions of Korean won)

Hybrid<br><br><br>securities Issuance date Maturity Interest rate (%)<br>as of<br>September 30, 2025 September 30,<br>2025 December 31,<br>2024
Series 1-2 May 2, 2019 Perpetual bond 3.44 ~~W~~ 49,896 ~~W~~ 49,896
Series 2-1 * May 8, 2020 Perpetual bond 3.30 — 324,099
Series 2-2 May 8, 2020 Perpetual bond 3.43 74,812 74,812
Series 3-1 * Jul. 14, 2020 Perpetual bond 3.17 — 369,099
Series 3-2 Jul. 14, 2020 Perpetual bond 3.38 29,922 29,922
Series 4-1 Oct. 20, 2020 Perpetual bond 3.00 433,996 433,996
Series 4-2 Oct. 20, 2020 Perpetual bond 3.28 64,855 64,855
Series 5-1 Feb. 19, 2021 Perpetual bond 2.67 419,071 419,071
Series 5-2 Feb. 19, 2021 Perpetual bond 2.87 59,862 59,862
Series 5-3 Feb. 19, 2021 Perpetual bond 3.28 119,727 119,727
Series 6-1 May 28, 2021 Perpetual bond 3.20 165,563 165,563
Series 6-2 May 28, 2021 Perpetual bond 3.60 109,708 109,708
Series 7-1 Oct. 8, 2021 Perpetual bond 3.57 208,468 208,468
Series 7-2 Oct. 8, 2021 Perpetual bond 3.80 59,834 59,834
Series 8-1 Feb. 16, 2022 Perpetual bond 4.00 442,970 442,970
Series 8-2 Feb. 16, 2022 Perpetual bond 4.30 155,626 155,626
Series 9-1 May 12, 2022 Perpetual bond 4.68 478,829 478,829
Series 9-2 May 12, 2022 Perpetual bond 4.97 19,906 19,906
Series 10-1 Aug. 26, 2022 Perpetual bond 4.90 407,936 407,936
Series 10-2 Aug. 26, 2022 Perpetual bond 5.15 70,819 70,819
Series 10-3 Aug. 26, 2022 Perpetual bond 5.30 19,944 19,944
Series 11-1 Feb. 3, 2023 Perpetual bond 4.90 548,681 548,681
Series 11-2 Feb. 3, 2023 Perpetual bond 5.03 49,871 49,871
Series 12 Feb. 28, 2024 Perpetual bond 4.39 399,060 399,084
Series 13 Jan. 22, 2025 Perpetual bond 4.00 404,028 —
~~W~~ 4,793,384 ~~W~~ 5,082,578
* As a result of exercising the call options for the Parent Company’s write-down contingent convertible<br>bonds, the 2-1st and 3-1st series (~~W~~ 325,000 million and ~~W~~ 370,000 million, respectively) were fully redeemed before maturity on May 8 and July 14, 2025.
--- ---

The above hybrid securities are early redeemable by the Group after 5, 7 or 10 years from the issuance date. On the other hand, hybrid securities of ~~W~~ 1,065,613 million issued by Kookmin Bank, hybrid securities of ~~W~~ 232,672 million issued by KB Securities Co., Ltd., hybrid securities of ~~W~~ 49,800 million issued by KB Life Insurance Co., Ltd., hybrid securities of ~~W~~ 249,150 million issued by KB Kookmin Card Co., Ltd. and hybrid securities of ~~W~~ 19,993 million issued by KB Real Estate Trust. Co., Ltd. are recognized as non-controlling interests and are early redeemable after 5 years from the issuance date and each interest payment date thereafter.

91

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

19.3 Capital Surplus

Details of capital surplus as of September 30, 2025 and December 31, 2024, are as follows:

(In millions of Korean won) September 30,2025 December 31,<br>2024
Paid-in capital in excess of par value ~~W~~ 13,190,274 ~~W~~ 13,190,274
Losses on sales of treasury shares (477,358 ) (477,358 )
Other capital surplus 3,910,328 3,933,818
~~W~~ 16,623,244 ~~W~~ 16,646,734

19.4 Accumulated Other Comprehensive Income

Details of accumulated other comprehensive income as of September 30, 2025 and December 31, 2024, are as follows:

(In millions of Korean won) September 30,<br>2025 December 31,<br>2024
Remeasurements of net defined benefit liabilities ~~W~~ (226,839 ) ~~W~~ (247,241 )
Currency translation differences 621,777 809,089
Losses on financial instruments at fair value through other comprehensive income (1,485,368 ) (1,518,990 )
Share of other comprehensive loss of associates and joint ventures 384 (3,153 )
Gains on cash flow hedging instruments 44,617 108,318
Losses on hedging instruments of net investments in foreign operations (243,151 ) (316,109 )
Fair value changes of financial liabilities designated at fair value through profit or loss due to<br>own credit risk (26,630 ) (17,314 )
Insurance finance income 864,612 1,682,322
~~W~~ (450,598 ) ~~W~~ 496,922

92

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

19.5 Retained Earnings

19.5.1 Details of retained earnings as of September 30, 2025 and December 31, 2024, are as follows:

(In millions of Korean won) September 30,<br>2025 December 31,<br>2024
Legal reserves ^1^ ~~W~~ 1,436,869 ~~W~~ 1,219,810
Voluntary reserves 982,000 982,000
Unappropriated retained earnings ^2^ 35,573,222 32,606,410
~~W~~ 37,992,091 ~~W~~ 34,808,220
^1^ With respect to the allocation of net profit earned in a fiscal term, the Parent Company must set aside in its<br>legal reserve an amount equal to at least 10% of its profit after tax as reported in the financial statements, each time it pays dividends on its net profits earned until its legal reserve reaches the aggregate amount of its paid-in capital in<br>accordance with Article 53 of the Financial Holding Company Act. This reserve is not available for the payment of cash dividends, but may be transferred to share capital, or used to reduce accumulated deficit.
--- ---
^2^ The regulatory reserve for credit losses the Group appropriated in retained earnings is ~~W~~<br>4,298,625 million and ~~W~~ 4,370,051 million as of September 30, 2025 and December 31, 2024, respectively.
--- ---

19.5.2 Regulatory reserve for credit losses

Measurement and disclosure of regulatory reserve for credit losses are required in accordance with Articles 26 through 28 of Regulations on Supervision of Financial Holding Companies.

19.5.2.1 Details of regulatory reserve for credit losses as of September 30, 2025 and December 31, 2024, are as follows:

(In millions of Korean won) September 30,2025 December 31,2024
Regulatory reserve for credit losses attributable to:
Shareholders of the Parent Company ~~W~~ 4,298,625 ~~W~~ 4,370,051
Non-controlling interests 142,547 169,603
~~W~~ 4,441,172 ~~W~~ 4,539,654

93

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

19.5.2.2 Regulatory reserve for credit losses estimated to be appropriated and adjusted profit after provision of regulatory reserve for credit losses for the three-month and nine-month periods ended September 30, 2025 and 2024, are as follows:

(In millions of Korean won, except for per share amounts) 2025 2024
Three<br>months Nine<br>months Three<br>months Nine<br>months
Provision (reversal) of regulatory reserve for credit losses ~~W~~ 136,129 ~~W~~ (71,426 ) ~~W~~ (20,887 ) ~~W~~ (161,366 )
Adjusted profit after provision of regulatory reserve for credit losses ^1,2^ 1,498,908 5,038,838 1,590,971 4,405,350
Adjusted basic earnings per share after provision of regulatory reserve for credit losses ^1^ 4,124 13,725 4,199 11,590
Adjusted diluted earnings per share after provision of regulatory reserve for credit losses ^1^ 4,087 13,596 4,159 11,451
^1^ Adjusted profit after provision of regulatory reserve for credit losses is not based on Korean IFRS. It is<br>calculated by reflecting provision of regulatory reserve for credit losses before tax to the net profit attributable to shareholders of the Parent Company.
--- ---
^2^ After deducting dividends on hybrid securities
--- ---

19.6 Treasury Shares

Changes in treasury shares for the nine-month periods ended September 30, 2025 and 2024, are as follows:

(In millions of Korean won and in number ofshares) 2025
Beginning Acquisition Disposal Retirement Ending
Number of treasury shares 19,927,704 11,448,744 — (12,066,320 ) 19,310,128
Carrying amount ~~W~~ 1,236,060 ~~W~~ 1,044,851 ~~W~~ — ~~W~~ (814,522 ) ~~W~~ 1,466,389
2024
Beginning Acquisition Disposal Retirement Ending
Number of treasury shares * 24,847,247 6,448,135 (5,000,000 ) (9,982,649 ) 16,312,733
Carrying amount ~~W~~ 1,165,837 ~~W~~ 490,679 ~~W~~ (234,600 ) ~~W~~ (515,177 ) ~~W~~ 906,739
* 5 million treasury shares deposited at the Korea Securities Depository for the exchange of exchangeable<br>bonds were disposed on February 14, 2024, due to the exercise of exchange right.
--- ---

On May 15, 2025, the Parent Company retired 4,575,874 shares (~~W~~400,000 million), 1,089,097 shares (~~W~~100,000 million) and 6,401,349 shares (~~W~~520,000 million) of treasury shares, which were acquired in accordance with the resolutions of the Board of Directors on July 23, 2024, October 24, 2024, and February 5, 2025, respectively.

In addition, the Parent Company plans to retire 3,047,395 shares (~~W~~300,000 million) of treasury shares on January 15, 2026, which were acquired in accordance with the resolution of the Board of Directors on April 24, 2025, and to acquire treasury shares amounting to ~~W~~660,000 million through a trust agreement by January 9, 2026, in accordance with the resolution of the Board of Directors on July 24, 2025, which will be retired after the termination of the trust agreement.

94

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

20. Net Interest Income

Details of interest income, interest expense, and net interest income for the three-month and nine-month periods ended September 30, 2025 and 2024, are as follows:

(In millions of Korean won) 2025 2024
Three<br>months Nine<br>months Three<br>months Nine<br>months
Interest income
Due from financial institutions measured at fair value through profit or loss ~~W~~ 645 ~~W~~ 1,908 ~~W~~ 696 ~~W~~ 2,253
Securities measured at fair value through profit or loss 346,816 1,032,715 354,977 1,078,139
Loans measured at fair value through profit or loss 12,414 40,459 6,810 18,679
Securities measured at fair value through other comprehensive income 689,196 2,081,530 688,913 1,989,166
Loans measured at fair value through other comprehensive income 18,356 53,161 14,056 39,926
Due from financial institutions measured at amortized cost 89,790 267,257 92,805 298,557
Securities measured at amortized cost 271,887 830,045 313,932 935,648
Loans measured at amortized cost 5,592,186 17,101,629 6,014,733 18,032,354
Insurance finance income 8,871 28,118 7,728 23,320
Others 164,808 497,721 143,025 444,521
7,194,969 21,934,543 7,637,675 22,862,563
Interest expense
Deposits 2,184,535 6,942,763 2,614,728 7,809,463
Borrowings 521,149 1,647,020 654,345 1,939,012
Debentures 643,702 1,973,021 674,727 1,937,602
Insurance finance expense 373,473 1,128,827 368,035 1,117,328
Others 135,928 538,039 138,295 475,375
3,858,787 12,229,670 4,450,130 13,278,780
Net interest income ~~W~~ 3,336,182 ~~W~~ 9,704,873 ~~W~~ 3,187,545 ~~W~~ 9,583,783

95

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

21. Net Fee and Commission Income

Details of fee and commission income, fee and commission expense, and net fee and commission income for the three-month and nine-month periods ended September 30, 2025 and 2024, are as follows:

(In millions of Korean won) 2025 2024
Three<br>months Nine<br>months Three<br>months Nine<br>months
Fee and commission income
Banking activity fees ~~W~~ 50,643 ~~W~~ 148,311 ~~W~~ 47,252 ~~W~~ 141,780
Lending activity fees 22,634 76,850 28,211 87,001
Credit card and debit card related fees 389,523 1,157,816 417,239 1,243,309
Agent activity fees 61,040 202,214 62,142 169,110
Trust and other fiduciary fees 93,043 231,845 74,429 219,367
Fund management related fees 39,101 141,283 35,600 100,728
Acceptances and guarantees fees 15,028 61,629 20,729 71,760
Foreign currency related fees 118,767 323,978 91,791 259,211
Securities agency fees 49,020 119,599 32,731 92,599
Other business account commission on consignment 6,174 24,378 6,820 28,197
Commissions received on securities business 192,551 521,188 145,423 467,492
Lease fees 263,758 807,983 279,145 844,515
Others 117,541 378,948 101,166 344,513
1,418,823 4,196,022 1,342,678 4,069,582
Fee and commission expense
Trading activity related fees * 14,253 37,298 12,695 38,594
Lending activity fees 12,880 33,825 8,483 26,240
Credit card and debit card related fees 215,867 609,705 208,820 616,724
Outsourcing related fees 30,972 97,998 38,357 111,462
Foreign currency related fees 32,282 96,375 34,002 86,839
Others 126,172 368,440 97,617 337,291
432,426 1,243,641 399,974 1,217,150
Net fee and commission income ~~W~~ 986,397 ~~W~~ 2,952,381 ~~W~~ 942,704 ~~W~~ 2,852,432
* Fees from financial instruments at fair value through profit or loss
--- ---

96

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

22. Net Gains or Losses on Financial Instruments at Fair Value through Profit or Loss

22.1 Net Gains or Losses on Financial Instruments at Fair Value through Profit or Loss

Net gains or losses on financial instruments at fair value through profit or loss include dividend income, gains or losses arising from changes in fair value, and gains or losses arising from sales and redemptions. Details of net gains or losses on financial instruments at fair value through profit or loss for the three-month and nine-month periods ended September 30, 2025 and 2024, are as follows:

2025 2024
(In millions of Korean won) Three<br>months Nine<br>months Three<br>months Nine<br>months
Gains on financial instruments at fair value through profit or loss
Financial assets at fair value through profit or loss:
Debt securities ~~W~~ 862,591 ~~W~~ 3,151,911 ~~W~~ 1,005,843 ~~W~~ 2,809,517
Equity securities 624,701 1,598,851 48,126 595,686
1,487,292 4,750,762 1,053,969 3,405,203
Derivatives held for trading:
Interest rate 319,852 2,753,432 1,331,045 4,021,795
Currency (622,513 ) 8,068,348 (730,326 ) 8,988,357
Stock or stock index 808,095 2,019,105 807,460 1,916,448
Credit 16,438 54,761 14,908 48,286
Commodity 26,227 111,494 24,036 51,749
Others (17,946 ) 50,516 37,162 61,798
530,153 13,057,656 1,484,285 15,088,433
Financial liabilities at fair value through profit or loss 5,337 90,968 59,706 238,920
Other financial instruments (537 ) 1,138 698 749
2,022,245 17,900,524 2,598,658 18,733,305
Losses on financial instruments at fair value through profit or loss
Financial assets at fair value through profit or loss:
Debt securities 245,538 1,066,308 156,553 951,088
Equity securities 65,563 310,712 285,929 574,373
311,101 1,377,020 442,482 1,525,461
Derivatives held for trading:
Interest rate 171,296 2,661,509 1,737,886 4,194,193
Currency (400,180 ) 7,636,346 (1,273,773 ) 9,048,486
Stock or stock index 1,074,427 2,581,909 558,935 1,689,160
Credit 16,354 52,855 13,617 46,190
Commodity 19,046 94,703 21,481 44,873
Others 15,578 40,290 (20,603 ) 65,622
896,521 13,067,612 1,037,543 15,088,524
Financial liabilities at fair value through profit or loss 149,478 484,258 84,545 314,465
Other financial instruments (278 ) 1,470 691 854
1,356,822 14,930,360 1,565,261 16,929,304
Net gains on financial instruments at fair value through profit or loss ~~W~~ 665,423 ~~W~~ 2,970,164 ~~W~~ 1,033,397 ~~W~~ 1,804,001

97

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

22.2 Net Gains or Losses on Financial Instruments Designated at Fair Value through Profit or Loss

Net gains or losses on financial instruments designated at fair value through profit or loss include gains or losses arising from changes in fair value, and gains or losses arising from sales and redemptions. Details of net gains or losses on financial instruments designated at fair value through profit or loss for the three-month and nine-month periods ended September 30, 2025 and 2024, are as follows:

(In millions of Korean won) 2025 2024
Three<br>months Nine<br>months Three<br>months Nine<br>months
Gains on financial instruments designated at fair value through profit or loss
Financial liabilities designated at fair value through profit or loss ~~W~~ 7,862 ~~W~~ 103,136 ~~W~~ 38,517 ~~W~~ 233,821
7,862 103,136 38,517 233,821
Losses on financial instruments designated at fair value through profit or loss
Financial liabilities designated at fair value through profit or loss 222,673 510,325 169,891 565,089
222,673 510,325 169,891 565,089
Net losses on financial instruments designated at fair value through profit orloss ~~W~~ (214,811 ) ~~W~~ (407,189 ) ~~W~~ (131,374 ) ~~W~~ (331,268 )

98

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

23. Net Other Operating Income and Expenses

Details of other operating income and expenses for the three-month and nine-month periods ended September 30, 2025 and 2024, are as follows:

(In millions of Korean won) 2025 2024
Three<br>months Nine<br>months Three<br>months Nine<br>months
Other operating income ****
Gains on financial instruments at fair value through other comprehensive income:
Gains on redemption of financial instruments at fair value through other comprehensive<br>income ~~W~~ 817 ~~W~~ 1,530 ~~W~~ 4,438 ~~W~~ 8,354
Gains on disposal of financial instruments at fair value through other comprehensive<br>income 38,477 220,606 31,314 107,840
39,294 222,136 35,752 116,194
Gains on financial assets at amortized cost:
Gains on sale of loans measured at amortized cost 44,193 145,974 19,310 119,384
Gains on disposal of securities measured at amortized cost 175 931 224 589
44,368 146,905 19,534 119,973
Gains on hedge accounting (21,941 ) 220,030 24,038 259,914
Gains on foreign exchange transactions 867,978 4,068,306 666,610 3,228,744
Dividend income 36,384 116,513 20,191 64,224
Others 212,799 615,957 173,983 496,067
1,178,882 5,389,847 940,108 4,285,116
Other operating expenses
Losses on financial instruments at fair value through other comprehensive income:
Losses on redemption of financial instruments at fair value through other comprehensive<br>income (774 ) 3 27 60
Losses on disposal of financial instruments at fair value through other comprehensive<br>income 13,410 71,761 102,876 150,194
12,636 71,764 102,903 150,254
Losses on financial assets at amortized cost:
Losses on sale of loans measured at amortized cost 149,856 344,649 31,456 61,493
Losses on disposal of securities measured at amortized cost 4 4 — —
149,860 344,653 31,456 61,493
Losses on hedge accounting (15,069 ) 303,570 61,814 270,929
Losses on foreign exchanges transactions 649,850 4,328,107 874,126 2,982,707
Deposit insurance fee 155,141 463,336 147,862 439,663
Credit guarantee fund fee 104,830 306,185 95,226 267,009
Depreciation expenses of operating lease assets 163,984 497,302 175,350 530,259
Others 422,663 1,331,611 345,090 1,167,089
1,643,895 7,646,528 1,833,827 5,869,403
Net other operating expenses ~~W~~ (465,013 ) ~~W~~ (2,256,681 ) ~~W~~ (893,719 ) ~~W~~ (1,584,287 )

99

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

24. General and Administrative Expenses

24.1 Details of general and administrative expenses for the three-month and nine-month periods ended September 30, 2025 and 2024, are as follows:

(In millions of Korean won) 2025 2024
Threemonths Nine<br>months Three<br>months Nine<br>months
Expenses related to employee
Employee benefits - salaries ~~W~~ 698,241 ~~W~~ 2,105,037 ~~W~~ 696,636 ~~W~~ 2,011,917
Employee benefits - others 208,327 632,492 211,174 642,157
Post-employment benefits - defined benefit plans 48,089 142,890 43,837 134,553
Post-employment benefits - defined contribution plans 8,486 26,723 5,987 23,103
Termination benefits 999 3,862 432 3,162
Share-based payments 29,399 111,102 21,699 113,370
993,541 3,022,106 979,765 2,928,262
Depreciation and amortization 228,045 675,175 232,219 675,950
Other general and administrative expenses
Rental expense 23,414 71,683 23,079 66,640
Tax and dues 84,967 276,881 76,424 245,621
Communication 8,759 28,107 10,906 33,640
Electricity and utilities 13,112 36,476 14,113 37,270
Publication 1,703 4,583 1,826 5,359
Repairs and maintenance 15,191 34,240 10,453 30,534
Vehicle 5,057 14,326 4,729 13,454
Travel 3,653 11,002 3,747 12,483
Training 9,973 29,568 10,926 28,962
Service fees 57,569 167,983 63,280 174,123
Electronic data processing expenses 86,457 280,614 88,451 263,043
Advertising 59,995 154,873 59,430 152,029
Others 61,027 200,107 71,451 205,556
430,877 1,310,443 438,815 1,268,714
~~W~~ 1,652,463 ~~W~~ 5,007,724 ~~W~~ 1,650,799 ~~W~~ 4,872,926

100

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

24.2 Share-based Payments

24.2.1 Stock grants

The Group changed the scheme of share-based payments awarded to executives and employees from stock options to stock grants in November 2007. The stock grants award program is an incentive plan that sets, on grant date, the maximum number of shares that can be awarded. Actual shares to be granted is determined in accordance with achievement of pre-set performance targets over the vesting period.

24.2.1.1 Details of stock grants linked to long-term performance as of September 30, 2025, are as follows:

(In number of shares) Grant date Number of grantedshares ^1^ Vesting conditions ^2^
KB Financial Group Inc.
Series 38 Nov. 21, 2023 55,547 Services fulfillment, market performance<br>^3^ 35%, and non-market performance ^5^ 65%
Series 39 Jan. 1, 2024 47,839 Services fulfillment, market performance<br>^3^ 0~30%, and non-market performance ^4^ 70~100%
Series 40 Feb. 1, 2024 511 Services fulfillment, market performance<br>^3^ 30%, and non-market performance ^4^ 70%
Series 41 Apr. 6, 2024 6,450 Services fulfillment, market performance<br>^3^ 30%, and non-market performance ^4^ 70%
Series 43 Jan. 1, 2025 37,073 Services fulfillment, market performance<br>^3^ 30%, and non-market performance ^4^ 70%
Series 44 Apr. 7, 2025 5,540 Services fulfillment, market performance<br>^3^ 30%, and non-market performance ^4^ 70%
Deferred grant in 2015 1,063 Satisfied
Deferred grant in 2020 40 Satisfied
Deferred grant in 2022 13,239 Satisfied
Deferred grant in 2023 59,942 Satisfied
Deferred grant in 2024 25,541 Satisfied
252,785
Kookmin Bank
Series 96 Jan. 1, 2024 220,113 Services fulfillment, market performance ^3^<br>0~30%, and non-market performance ^4^ 70~100%<br> <br>Services<br>fulfillment, market performance ^3^ 30%, and non-market performance^6^ 70%
Series 97 Feb. 1, 2024 2,045 Services fulfillment, market performance ^3^<br>0~30%,<br> <br>and non-market performance ^4^ 70~100%
Series 98 Apr. 22, 2024 2,959 Services fulfillment, market performance ^3^<br>0~30%,<br> <br>and non-market performance ^4^ 70~100%
Series 99 Jul. 05, 2024 4,926 Services fulfillment, market performance ^3^<br>0~30%,<br> <br>and non-market performance ^4^ 70~100%
Series 101 Aug. 24, 2024 4,453 Services fulfillment, market performance ^3^<br>0~30%,<br> <br>and non-market performance ^4^ 70~100%
Series 102 Jan. 1, 2025 179,315 Services fulfillment, market performance ^3^<br>0~30%, and non-market performance ^4^ 70~100%<br> <br>Services<br>fulfillment, market performance ^3^ 30%, and non-market performance^6^ 70%
Series 103 Jan. 9, 2025 4,589 Services fulfillment, market performance<br>^3^ 0~30%, and non-market performance ^4^ 70~100%

101

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

24.2.1.1 Details of stock grants linked to long-term performance as of September 30, 2025, are as follows: (cont’d)

(In number of shares) Number of grantedshares ^1^ Vesting conditions ^2^
Deferred grant in 2022 29,628 Satisfied
Deferred grant in 2023 93,891 Satisfied
Deferred grant in 2024 118,288 Satisfied
660,207
Other subsidiaries
Stock granted in 2012 160 Services fulfillment,<br><br><br>market performance ^3^ 0~50%,<br><br><br>and non-market performance ^4^ 50~100%
Stock granted in 2013 219
Stock granted in 2014 1,028
Stock granted in 2015 1,155
Stock granted in 2017 3,955
Stock granted in 2018 11,044
Stock granted in 2019 13,255
Stock granted in 2020 25,783
Stock granted in 2021 18,692
Stock granted in 2022 79,498
Stock granted in 2023 119,878
Stock granted in 2024 453,356
Stock granted in 2025 253,600
981,623
1,894,615
^1^ Granted shares represent the total number of shares initially granted to executives and employees who have<br>residual shares as of September 30, 2025 (Deferred grants are residual shares vested as of September 30, 2025).
--- ---
^2^ Executives and employees were given the right of choice about the timing of the deferred payment (after the<br>date of retirement), payment ratio, and payment period. Accordingly, a certain percentage of the granted shares is deferred for up to five years after the date of retirement after the deferred grant has been confirmed.
--- ---
^3^ Relative TSR (Total Shareholder Return): [(Fair value at the end of the contract—Fair value at the<br>beginning of the contract) + (Total amount of dividend per share paid during the contract period)] / Fair value at the beginning of the contract.
--- ---
^4^ Performance results of company and employee
--- ---
^5^ EPS (Earnings Per Share), Asset Quality, HCROI (Human Capital Return On Investment), Non-bank segment profit<br>
--- ---
^6^ EPS, Asset Quality
--- ---

102

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

24.2.1.2 Details of stock grants linked to short-term performance as of September 30, 2025, are as follows:

(In number of shares) Estimated number of<br>vested shares * Vesting<br>conditions
KB Financial Group Inc.
Stock granted in 2015 541 Satisfied
Stock granted in 2016 1,558 Satisfied
Stock granted in 2020 78 Satisfied
Stock granted in 2022 14,653 Satisfied
Stock granted in 2023 27,960 Satisfied
Stock granted in 2024 23,462 Satisfied
Stock granted in 2025 12,671 Proportional to service period
Kookmin Bank
Stock granted in 2022 55,061 Satisfied
Stock granted in 2023 118,700 Satisfied
Stock granted in 2024 97,412 Satisfied
Stock granted in 2025 47,143 Proportional to service period
Other subsidiaries
Stock granted in 2015 1,289 Satisfied
Stock granted in 2016 7,290 Satisfied
Stock granted in 2017 20,121 Satisfied
Stock granted in 2018 51,583 Satisfied
Stock granted in 2019 41,130 Satisfied
Stock granted in 2020 48,423 Satisfied
Stock granted in 2021 81,625 Satisfied
Stock granted in 2022 202,086 Satisfied
Stock granted in 2023 409,430 Satisfied
Stock granted in 2024 421,073 Satisfied
Stock granted in 2025 74,653 Proportional to service period
1,757,942
* Executives and employees were given the right of choice about the timing of the deferred payment (after the<br>date of retirement), payment ratio, and payment period. Accordingly, a certain percentage of the granted shares is deferred for up to five years after the date of retirement after the deferred grant has been confirmed.
--- ---

24.2.1.3 The accrued expenses for share-based payments related to stock grants are ~~W~~ 346,754 million and ~~W~~ 295,867 million as of September 30, 2025 and December 31, 2024, respectively, and the compensation costs amounting to ~~W~~ 133,586 million and ~~W~~ 131,214 million were recognized for the nine-month periods ended September 30, 2025 and 2024, respectively.

103

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

24.2.2 Mileage stock

24.2.2.1 Details of mileage stock as of September 30, 2025, are as follows:

(In number of shares) Grant date Numberof granted shares ^1^ Expected exerciseperiod (years)^2^ Remainingshares^1^
Stock granted in 2020
Oct. 29, 2020 160 0.00~0.08 80
Nov. 6, 2020 45 0.00~0.10 26
Nov. 30, 2020 35 0.00~0.16 24
Dec. 2, 2020 57 0.00~0.17 20
Dec. 4, 2020 49 0.00~0.18 5
Dec. 30, 2020 88 0.00~0.25 25
Stock granted in 2021
Jan. 15, 2021 28,156 0.00~0.29 8,744
Apr. 5, 2021 89 0.00~0.51 53
Jul. 1, 2021 54 0.00~0.75 18
Jul. 2, 2021 11 0.00~0.75 11
Jul. 27, 2021 70 0.00~0.82 25
Nov. 1, 2021 71 0.00~1.08 53
Nov. 16, 2021 53 0.00~1.13 3
Dec. 3, 2021 91 0.00~1.17 39
Dec. 6, 2021 87 0.00~1.18 25
Dec. 30, 2021 76 0.00~1.25 38
Stock granted in 2022
Jan. 14, 2022 20,909 0.00~1.29 9,273
Apr. 4, 2022 65 0.00~1.51 33
Apr. 19, 2022 33 0.00~1.55 20
Aug. 03, 2022 62 0.00~1.84 6
Aug. 09, 2022 80 0.00~1.85 17
Oct. 19, 2022 55 0.00~2.05 5
Nov. 1, 2022 177 0.00~2.08 73
Dec. 1, 2022 49 0.00~2.17 48
Dec. 6, 2022 88 0.00~2.18 8
Dec. 12, 2022 114 0.00~2.20 48
Dec. 15, 2022 42 0.00~2.21 24
Dec. 30, 2022 114 0.00~2.25 25

104

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

24.2.2.1 Details of mileage stock as of September 30, 2025, are as follows: (cont’d)

(In number of shares) Grant date Numberof granted shares ^1^ Expected exerciseperiod (years)^2^ Remainingshares^1^
Stock granted in 2023
Jan. 9, 2023 23,071 0.00~2.27 8,375
Jan. 14, 2023 742 0.00~2.29 313
Mar. 27, 2023 58 0.00~2.48 42
Mar. 31, 2023 97 0.00~2.50 39
May 4, 2023 105 0.00~2.59 50
Jul. 3, 2023 63 0.00~2.75 21
Jul. 26, 2023 38 0.00~2.82 25
Jul. 31, 2023 220 0.00~2.83 68
Oct. 20, 2023 80 0.00~3.05 49
Nov. 1, 2023 78 0.00~3.08 39
Dec. 1, 2023 49 0.00~3.17 36
Dec. 13, 2023 115 0.00~3.20 29
Dec. 14, 2023 57 0.00~3.20 50
Dec. 27, 2023 19 0.00~3.24 19
Dec. 28, 2023 162 0.00~3.24 71
Dec. 29, 2023 95 0.00~3.24 76
Stock granted in 2024
Jan. 13, 2024 17,523 0.00~3.28 11,154
Jan. 31, 2024 297 0.00~3.33 215
Apr. 01, 2024 89 0.00~3.50 58
Jul. 01, 2024 38 0.00~3.75 38
Aug. 01, 2024 141 0.00~3.84 103
Sep. 02, 2024 14 0.00~3.92 8
Nov. 1, 2024 55 0.00~4.09 55
Dec. 4, 2024 26 0.00~4.18 26
Dec. 19, 2024 88 0.00~4.22 88
Dec. 30, 2024 73 0.00~4.25 72
Stock granted in 2025
Jan. 11, 2025 11,977 0.00~4.28 11,364
Feb. 6, 2025 162 0.00~4.35 162
Apr. 1, 2025 38 0.00~4.50 38
May 9, 2025 13 0.00~4.61 13
Jul. 1, 2025 18 0.00~4.75 18
106,581 51,483
^1^ Vested immediately at the grant date and assessed based on the stock price as of September 30, 2025<br>
--- ---
^2^ Mileage stock is exercisable for four years after one year from the grant date at the closing price of the end<br>of the previous month. However, mileage stock can be exercised at the closing price of the end of the previous month on the date of occurrence of retirement or transfer despite a one-year grace period.
--- ---

24.2.2.2 The accrued expenses for share-based payments related to mileage stock are ~~W~~ 5,946 million and ~~W~~ 5,067 million as of September 30, 2025 and December 31, 2024, respectively. The compensation costs amounting to ~~W~~ 2,793 million and ~~W~~ 2,993 million were recognized as expenses for the nine-month periods ended September 30, 2025 and 2024, respectively.

105

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

25. Income Tax Expense

25.1 Details of income tax expense for the nine-month periods ended September 30, 2025 and 2024, are as follows:

(In millions of Korean won) 2025 2024
Income tax payable
Current income tax expense ~~W~~ 1,633,376 ~~W~~ 1,151,437
Adjustments of income tax of prior years recognized in current tax (81,474 ) (7,698 )
1,551,902 1,143,739
Changes in deferred income tax assets and liabilities (6,123 ) (103,740 )
Income tax recognized directly in equity and others
Remeasurements of net defined benefit liabilities (7,525 ) (5,884 )
Currency translation differences 18,728 (6,587 )
Net gains or losses on financial assets at fair value through other comprehensive income (27,240 ) (371,561 )
Share of other comprehensive income or loss of associates and joint ventures (1,928 ) (130 )
Gains or losses on cash flow hedging instruments 22,845 (1,939 )
Gains or losses on hedging instruments of net investments in foreign operations (26,170 ) 6,157
Fair value changes of financial liabilities designated at fair value through profit or loss due to<br>own credit risk 3,336 2,984
Insurance finance income 293,309 1,013,492
275,355 636,532
Others (11,884 ) 14,009
Income tax expense ~~W~~ 1,809,250 ~~W~~ 1,690,540

26. Dividends

The annual dividends to the shareholders of the Parent company for the year ended December 31, 2024 amounting to ~~W~~ 298,285 million (~~W~~ 804 per share) were declared at the annual general shareholders’ meeting on March 26, 2025 and was paid on April 15, 2025.

In addition, the Board of Directors resolved on April 24, 2025 to declare a quarterly dividend of ~~W~~ 334,339 million (~~W~~ 912 per share) to shareholders of record as of May 12, 2025, which was paid on May 22, 2025. On July 24, 2025, the Board of Directors also resolved to declare a quarterly dividend of ~~W~~ 334,651 million (~~W~~ 920 per share) to shareholders of record as of August 11, 2025, which was paid on August 22, 2025.

Meanwhile, the annual dividends to the shareholders of the Company for the year ended December 31, 2023 and quarterly dividend paid in 2024 were ~~W~~ 587,006 million (~~W~~ 1,530 per share) and ~~W~~ 899,972 million, respectively.

106

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

27. Accumulated Other Comprehensive Income (Loss)

Changes in accumulated other comprehensive income (loss) for the nine-month periods ended September 30, 2025 and 2024, are as follows:

(In millions of Korean won) 2025
Beginning Changesexcept forreclassifi-cation Reclassificationto profit or loss Transfer<br>within equity Tax effect Ending
Remeasurements of net defined benefit liabilities ~~W~~ (247,241 ) ~~W~~ 27,927 ~~W~~ — ~~W~~ — ~~W~~ (7,525 ) ~~W~~ (226,839 )
Currency translation differences 809,089 (206,040 ) — — 18,728 621,777
Gains (losses) on financial instruments at fair value through other comprehensive income (1,518,990 ) 114,010 (58,853 ) 5,705 (27,240 ) (1,485,368 )
Share of other comprehensive loss of associates and joint ventures (3,153 ) 6,249 (784 ) — (1,928 ) 384
Gains (losses) on cash flow hedging instruments 108,318 (271,378 ) 184,832 — 22,845 44,617
Gains (losses) on hedging instruments of net investments in foreign operations (316,109 ) 99,128 — — (26,170 ) (243,151 )
Fair value changes of financial liabilities designated at fair value through profit or loss due to<br>own credit risk (17,314 ) (12,652 ) — — 3,336 (26,630 )
Finance gains or losses on insurance contract assets (liabilities) 1,682,322 (1,111,019 ) — — 293,309 864,612
~~W~~ 496,922 ~~W~~ (1,353,775 ) ~~W~~ 125,195 ~~W~~ 5,705 ~~W~~ 275,355 ~~W~~ (450,598 )

107

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

27. Accumulated Other Comprehensive Income (Loss) (cont’d)

Changes in accumulated other comprehensive income (loss) for the nine-month periods ended September 30, 2025 and 2024, are as follows: (cont’d)

(In millions of Korean won) 2024
Beginning Changes<br>except forreclassifi-cation Reclassificationto profit or loss Transfer<br>within equity Tax effect Ending
Remeasurements of net defined benefit liabilities ~~W~~ (161,295 ) ~~W~~ 22,589 ~~W~~ — ~~W~~ — ~~W~~ (5,884 ) ~~W~~ (144,590 )
Currency translation differences 261,752 132,613 — — (6,587 ) 387,778
Gains (losses) on financial instruments at fair value through other comprehensive income (2,735,499 ) 1,370,777 56,501 3,797 (371,561 ) (1,675,985 )
Share of other comprehensive loss of associates and joint ventures (3,318 ) 407 (1 ) — (130 ) (3,042 )
Gains (losses) on cash flow hedging instruments 73,555 34,923 (27,580 ) — (1,940 ) 78,958
Gains (losses) on hedging instruments of net investments in foreign operations (129,401 ) (23,323 ) — — 6,157 (146,567 )
Fair value changes of financial liabilities designated at fair value through profit or loss due to<br>own credit risk (11,800 ) (11,302 ) — — 2,984 (20,118 )
Finance gains or losses on insurance contract assets (liabilities) 4,858,650 (3,838,988 ) — — 1,013,493 2,033,155
~~W~~ 2,152,644 ~~W~~ (2,312,304 ) ~~W~~ 28,920 ~~W~~ 3,797 ~~W~~ 636,532 ~~W~~ 509,589

108

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

28. Earnings per Share

28.1 Basic Earnings per Share

Basic earnings per share is calculated by dividing profit attributable to ordinary equity holders of the Parent Company by the weighted average number of ordinary shares outstanding.

28.1.1 Weighted average number of ordinary shares outstanding

(In number of shares) 2025 2024
Three months Nine months Three months Nine months
Number of issued ordinary shares 381,462,103 381,462,103 393,528,423 393,528,423
Number of treasury shares * (19,310,128 ) (19,310,128 ) (16,312,733 ) (16,312,733 )
Weighted average number of ordinary shares outstanding 363,482,627 367,125,407 378,880,364 380,100,693
* The effective dates of treasury shares that were deducted through retirement for the nine-month periods ended<br>September 30, 2025 and 2024, are May 15, 2025 and August 14, 2024.
--- ---

28.1.2 Basic earnings per share

(In Korean won except for number of shares) 2025
Three months Nine months
Profit attributable to shareholders of the Parent Company ~~W~~ 1,686,040,148,505 ~~W~~ 5,121,733,114,398
Deduction: Dividends on hybrid securities (51,002,825,000 ) (154,320,975,000 )
Profit attributable to the ordinary equity holders of the Parent Company (A) 1,635,037,323,505 4,967,412,139,398
Weighted average number of ordinary shares outstanding (B) 363,482,627 367,125,407
Basic earnings per share (A/B) ~~W~~ 4,498 ~~W~~ 13,531
(In Korean won except for number of shares) 2024
--- --- --- --- --- --- ---
Three months Nine months
Profit attributable to shareholders of the Parent Company ~~W~~ 1,619,717,495,178 ~~W~~ 4,394,148,966,097
Deduction: Dividends on hybrid securities (49,634,075,000 ) (150,164,725,000 )
Profit attributable to the ordinary equity holders of the Parent Company (A) 1,570,083,420,178 4,243,984,241,097
Weighted average number of ordinary shares outstanding (B) 378,880,364 380,100,693
Basic earnings per share (A/B) ~~W~~ 4,144 ~~W~~ 11,165

109

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

28.2 Diluted Earnings per Share

Diluted earnings per share is calculated through increasing the weighted average number of ordinary shares outstanding by the weighted average number of additional ordinary shares that would have been outstanding assuming the conversion of all dilutive potential ordinary shares. The Group has dilutive potential ordinary shares such as stock grants and ordinary share exchange right of exchangeable bonds.

A calculation is done to determine the number of shares that could have been acquired at fair value (determined as the average market share price during the period) based on the monetary value of stock grants. The number of shares calculated above is compared with the number of shares that would have been issued assuming the settlement of stock grants.

Exchangeable bonds are included in potential ordinary shares from the exercisable date of the exchange right, and interest expense after tax for the period is added to profit for diluted earnings per share.

28.2.1 Adjusted profit for diluted earnings per share

(In Korean won) 2025
Three months Nine months
Profit attributable to shareholders of the Parent Company * ~~W~~ 1,635,037,323,505 ~~W~~ 4,967,412,139,398
Adjustments: Interest expense on exchangeable bonds — —
Adjusted profit for diluted earnings per share ~~W~~ 1,635,037,323,505 ~~W~~ 4,967,412,139,398
(In Korean won) 2024
Three months Nine months
Profit attributable to shareholders of the Parent Company * ~~W~~ 1,570,083,420,178 ~~W~~ 4,243,984,241,097
Adjustments: Interest expense on exchangeable bonds — 306,631,690
Adjusted profit for diluted earnings per share ~~W~~ 1,570,083,420,178 ~~W~~ 4,244,290,872,787
* The amount is after deducting dividends on hybrid securities.
--- ---

28.2.2 Weighted average number of ordinary shares outstanding for diluted earnings per share

(In number of shares) 2025 2024
Three months Nine months Three months Nine months
Weighted average number of ordinary shares outstanding 363,482,627 367,125,407 378,880,364 380,100,693
Adjustment:
Stock grants 3,282,194 3,487,746 3,633,208 3,848,545
Exchangeable bonds — — — 802,920
Adjusted weighted average number of ordinary shares outstanding for diluted earnings per<br>share 366,764,821 370,613,153 382,513,572 384,752,158

110

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

28.2.3 Diluted earnings per share

(In Korean won except for number of shares) 2025 2024
Three months Nine months Three months Nine months
Adjusted profit for diluted earnings per share ~~W~~ 1,635,037,323,505 ~~W~~ 4,967,412,139,398 ~~W~~ 1,570,083,420,178 ~~W~~ 4,244,290,872,787
Adjusted weighted average number of ordinary shares outstanding for diluted earnings per<br>share 366,764,821 370,613,153 382,513,572 384,752,158
Diluted earnings per share ~~W~~ 4,458 ~~W~~ 13,403 ~~W~~ 4,105 ~~W~~ 11,031

111

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

29. Insurance Contracts

29.1 Insurance Contracts Assets and Liabilities

29.1.1 Details of insurance contract assets and insurance contract liabilities as of September 30, 2025 and December 31, 2024, are as follows:

(In millions of Korean won)
September 30, 2025
Life insurance Non-life insurance
Death Health Pension Variables Compound Long-term General Automobile Overseas
Insurance contract assets ~~W~~ — ~~W~~ — ~~W~~ — ~~W~~ — ~~W~~ — ~~W~~ 328,198 ~~W~~ 33,935 ~~W~~ — ~~W~~ —
Insurance contract liabilities 15,730,314 617,779 7,912,180 7,088,561 — 23,818,951 1,544,577 2,161,253 140,459
Net insurance contract liabilities ~~W~~ 15,730,314 ~~W~~ 617,779 ~~W~~ 7,912,180 ~~W~~ 7,088,561 ~~W~~ — ~~W~~ 23,490,753 ~~W~~ 1,510,642 ~~W~~ 2,161,253 ~~W~~ 140,459
Reinsurance contract assets ~~W~~ 422 ~~W~~ 503 ~~W~~ — ~~W~~ — ~~W~~ 5,980 ~~W~~ 502,878 ~~W~~ 975,053 ~~W~~ 6,555 ~~W~~ 112,912
Reinsurance contract liabilities 20,983 16,188 — — — 41 35,283 — —
Net reinsurance contract assets (liabilities) ~~W~~ (20,561 ) ~~W~~ (15,685 ) ~~W~~ — ~~W~~ — ~~W~~ 5,980 ~~W~~ 502,837 ~~W~~ 939,770 ~~W~~ 6,555 ~~W~~ 112,912

112

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

29.1.1 Details of insurance contract assets and insurance contract liabilities as of September 30, 2025 and December 31, 2024, are as follows: (cont’d)

(In millions of Korean won)
December 31, 2024
Life insurance Non-life insurance
Death Health Pension Variables Compound Long-term General Automobile Overseas
Insurance contract assets ~~W~~ — ~~W~~ — ~~W~~ — ~~W~~ — ~~W~~ — ~~W~~ 265,762 ~~W~~ 10,429 ~~W~~ — ~~W~~ —
Insurance contract liabilities 14,687,315 579,725 7,431,564 6,644,117 — 22,838,534 1,327,191 2,145,366 209,889
Net insurance contract liabilities ~~W~~ 14,687,315 ~~W~~ 579,725 ~~W~~ 7,431,564 ~~W~~ 6,644,117 ~~W~~ — ~~W~~ 22,572,772 ~~W~~ 1,316,762 ~~W~~ 2,145,366 ~~W~~ 209,889
Reinsurance contract assets ~~W~~ 81 ~~W~~ — ~~W~~ — ~~W~~ — ~~W~~ 2,442 ~~W~~ 492,051 ~~W~~ 831,272 ~~W~~ 6,953 ~~W~~ 164,348
Reinsurance contract liabilities 18,022 16,265 — — — 122 21,857 — —
Net reinsurance contract assets (liabilities) ~~W~~ (17,941 ) ~~W~~ (16,265 ) ~~W~~ — ~~W~~ — ~~W~~ 2,442 ~~W~~ 491,929 ~~W~~ 809,415 ~~W~~ 6,953 ~~W~~ 164,348

113

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

29.2 Details of insurance service results for the nine-month periods ended September 30, 2025 and 2024, are as follows:

(In millions of Korean won) 2025
Life insurance Non-life insurance Total
Death Health Pension Variables Compound Long-term General Automobile Overseas
Insurance revenue:
Insurance contracts not applying the premium allocation approach:
Expected insurance claims and expenses ~~W~~ 197,040 ~~W~~ 27,241 ~~W~~ 41,362 ~~W~~ 64,849 ~~W~~ — ~~W~~ 3,718,899 ~~W~~ — ~~W~~ — ~~W~~ — ~~W~~ 4,049,391
Changes in risk adjustment due to release of risk 13,041 2,151 6,659 4,621 — 152,793 — — — 179,265
Changes in contractual service margin recognized in profit or loss for the services<br>provided 199,998 13,413 46,211 74,765 — 641,231 — — — 975,618
Recovery of insurance acquisition cash flows 24,541 3,295 24,883 8,558 — 199,613 — — — 260,890
Other insurance revenues (353 ) (284 ) (218 ) (439 ) — — — — — (1,294 )
~~W~~ 434,267 ~~W~~ 45,816 ~~W~~ 118,897 ~~W~~ 152,354 ~~W~~ — ~~W~~ 4,712,536 ~~W~~ — ~~W~~ — ~~W~~ — ~~W~~ 5,463,870
Insurance revenue for insurance contracts applying the premium allocation approach — — — — — — 1,054,810 2,113,235 44,797 3,212,842
Total insurance revenue ~~W~~ 434,267 ~~W~~ 45,816 ~~W~~ 118,897 ~~W~~ 152,354 ~~W~~ — ~~W~~ 4,712,536 ~~W~~ 1,054,810 ~~W~~ 2,113,235 ~~W~~ 44,797 ~~W~~ 8,676,712

114

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

29.2 Details of insurance service results for the nine-month periods ended September 30, 2025 and 2024, are as follows: (cont’d)

(In millions of Korean won) 2025
Life insurance Non-life insurance Total
Death Health Pension Variables Compound Long-term General Automobile Overseas
Insurance service expenses:
Incurred claims and expenses ~~W~~ (158,448 ) ~~W~~ (34,588 ) ~~W~~ (36,103 ) ~~W~~ (63,086 ) ~~W~~ — ~~W~~ (3,868,272 ) ~~W~~ (763,725 ) ~~W~~ (1,925,985 ) ~~W~~ (11,374 ) ~~W~~ (6,861,581 )
Amortization of insurance acquisition cash flows (24,541 ) (3,295 ) (24,883 ) (8,558 ) — (229,984 ) (119,299 ) (234,717 ) (2,152 ) (647,429 )
Changes in fulfilment cash flows relating to incurred claims 444 (1,469 ) (465 ) (1,225 ) — 110,768 (75,423 ) 16,045 — 48,675
Losses on onerous contracts and reversals (3,640 ) (2,781 ) (17,969 ) 12,985 — (5,478 ) (1,021 ) — — (17,904 )
Other insurance service expenses (4 ) 1,580 10,274 (2,523 ) — — — — — 9,327
Insurance service expenses for insurance contracts not applying the premium allocation<br>approach (186,189 ) (40,553 ) (69,146 ) (62,407 ) — (3,992,966 ) — — — (4,351,261 )
Insurance service expenses for insurance contracts applying the premium allocation<br>approach — — — — — — (959,468 ) (2,144,657 ) (13,526 ) (3,117,651 )
Total insurance service expenses ~~W~~ (186,189 ) ~~W~~ (40,553 ) ~~W~~ (69,146 ) ~~W~~ (62,407 ) ~~W~~ — ~~W~~ (3,992,966 ) ~~W~~ (959,468 ) ~~W~~ (2,144,657 ) ~~W~~ (13,526 ) ~~W~~ (7,468,912 )
Reinsurance income:
Recovery of incurred reinsurance claims and expenses 843 1,640 — — 2,295 151,696 346,362 918 24,647 528,401
Changes in fulfilment cash flows relating to incurred claims 2,648 320 — — (248 ) (1,005 ) 82,514 1,194 — 85,423
Recognition and reversal of loss-recovery component 67 126 — — 94 (3,222 ) 154 — — (2,781 )
Reinsurance income for reinsurance contracts not applying the premium allocation approach 3,558 2,086 — — 2,141 145,973 — — — 153,758
Reinsurance income for reinsurance contracts applying the premium allocation approach — — — — — 1,496 429,030 2,112 24,647 457,285
Total reinsurance income ~~W~~ 3,558 ~~W~~ 2,086 ~~W~~ — ~~W~~ — ~~W~~ 2,141 ~~W~~ 147,469 ~~W~~ 429,030 ~~W~~ 2,112 ~~W~~ 24,647 ~~W~~ 611,043

115

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

29.2 Details of insurance service results for the nine-month periods ended September 30, 2025 and 2024, are as follows: (cont’d)

(In millions of Korean won) 2025
Life insurance Non-life insurance Total
Death Health Pension Variables Compound Long-term General Automobile Overseas
Reinsurance expense:
Reinsurance contracts not applying the premium allocation approach:
Expected recovery of incurred claims and expenses ~~W~~ (1,085 ) ~~W~~ (1,541 ) ~~W~~ — ~~W~~ — ~~W~~ (1,575 ) ~~W~~ (128,322 ) ~~W~~ — ~~W~~ — ~~W~~ — ~~W~~ (132,523 )
Changes in risk adjustment due to release of risk (152 ) (121 ) — — (124 ) (6,423 ) — — — (6,820 )
Changes in Contractual service margin recognized in profit or loss for the services<br>received (1,235 ) (564 ) — — (1,642 ) (2,547 ) — — — (5,988 )
Experience adjustments on reinsurance premiums for current and past service (348 ) 1,073 — — 292 (4,036 ) — — — (3,019 )
Other reinsurance expenses 30 14 — — 19 — — — — 63
~~W~~ (2,790 ) ~~W~~ (1,139 ) ~~W~~ — ~~W~~ — ~~W~~ (3,030 ) ~~W~~ (141,328 ) ~~W~~ — ~~W~~ — ~~W~~ — ~~W~~ (148,287 )
Reinsurance expenses for reinsurance contracts applying the premium allocation approach — — — — — (1,030 ) (433,451 ) (5,300 ) (57,693 ) (497,474 )
Total reinsurance expense (2,790 ) (1,139 ) — — (3,030 ) (142,358 ) (433,451 ) (5,300 ) (57,693 ) (645,761 )
Total insurance service result ~~W~~ 248,846 ~~W~~ 6,210 ~~W~~ 49,751 ~~W~~ 89,947 ~~W~~ (889 ) ~~W~~ 724,681 ~~W~~ 90,921 ~~W~~ (34,610 ) ~~W~~ (1,775) ~~W~~ 1,173,082

116

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

29.2 Details of insurance service results for the nine-month periods ended September 30, 2025 and 2024, are as follows: (cont’d)

(In millions of Korean won) 2024
Life insurance Non-life insurance Total
Death Health Pension Variables Compound Long-term General Automobile Overseas
Insurance revenue:
Insurance contracts not applying the premium allocation approach:
Expected insurance claims and expenses ~~W~~ 198,378 ~~W~~ 26,315 ~~W~~ 31,412 ~~W~~ 68,792 ~~W~~ — ~~W~~ 3,395,550 ~~W~~ — ~~W~~ — ~~W~~ — ~~W~~ 3,720,447
Changes in risk adjustment due to release of risk 13,574 2,015 5,173 4,311 — 133,361 — — — 158,434
Changes in Contractual service margin recognized in profit or loss for the services<br>provided 201,091 13,288 39,414 76,789 — 644,869 — — — 975,451
Recovery of insurance acquisition cash flows 21,675 2,543 13,410 8,073 — 158,237 — — — 203,938
Other insurance revenues (2,413 ) (418 ) (458 ) (407 ) — — — — — (3,696 )
~~W~~ 432,305 ~~W~~ 43,743 ~~W~~ 88,951 ~~W~~ 157,558 ~~W~~ — ~~W~~ 4,332,017 ~~W~~ — ~~W~~ — ~~W~~ — ~~W~~ 5,054,574
Insurance revenue for insurance contracts applying the premium allocation approach — — — — — — 1,017,106 2,109,818 41,224 3,168,148
Total insurance revenue ~~W~~ 432,305 ~~W~~ 43,743 ~~W~~ 88,951 ~~W~~ 157,558 ~~W~~ — ~~W~~ 4,332,017 ~~W~~ 1,017,106 ~~W~~ 2,109,818 ~~W~~ 41,224 ~~W~~ 8,222,722

117

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

29.2 Details of insurance service results for the nine-month periods ended September 30, 2025 and 2024, are as follows: (cont’d)

(In millions of Korean won) 2024
Life insurance Non-life insurance Total
Death Health Pension Variables Compound Long-term General Automobile Overseas
Insurance service expenses:
Incurred claims and expenses ~~W~~ (154,036 ) ~~W~~ (25,266 ) ~~W~~ (23,038 ) ~~W~~ (62,155 ) ~~W~~ — ~~W~~ (3,385,370 ) ~~W~~ (612,195 ) ~~W~~ (1,863,960 ) ~~W~~ 2,878 ~~W~~ (6,123,142 )
Amortization of insurance acquisition cash flows (21,675 ) (2,543 ) (13,410 ) (8,073 ) — (164,919 ) (108,171 ) (241,033 ) (2,361 ) (562,185 )
Changes in fulfilment cash flows relating to incurred claims (8,249 ) (366 ) (2,146 ) (1,881 ) — 179,793 92,281 41,719 — 301,151
Losses on onerous contracts and reversals (973 ) 4,291 (1,317 ) 616 — (50,000 ) (814 ) — — (48,197 )
Other insurance service expenses (6 ) (648 ) (3,050 ) (2,069 ) — — — — — (5,773 )
Insurance service expenses for insurance contracts not applying the premium allocation<br>approach (184,939 ) (24,532 ) (42,961 ) (73,562 ) — (3,420,496 ) — — — (3,746,490 )
Insurance service expenses for insurance contracts applying the premium allocation<br>approach — — — — — — (628,899 ) (2,063,274 ) 517 (2,691,656 )
Total insurance service expenses ~~W~~ (184,939 ) ~~W~~ (24,532 ) ~~W~~ (42,961 ) ~~W~~ (73,562 ) ~~W~~ — ~~W~~ (3,420,496 ) ~~W~~ (628,899 ) ~~W~~ (2,063,274 ) ~~W~~ 517 ~~W~~ (6,438,146 )
Reinsurance income:
Recovery of incurred reinsurance claims and expenses 725 1,258 — — 2,594 101,328 209,182 148 27,190 342,425
Changes in fulfilment cash flows relating to incurred claims 603 102 — — (575 ) (21,095 ) (60,702 ) 246 — (81,421 )
Recognition and reversal of loss-recovery component 176 (60 ) — — (1,472 ) 7,971 264 — — 6,879
Reinsurance income for reinsurance contracts not applying the premium allocation approach 1,504 1,300 — — 547 88,408 — — — 91,759
Reinsurance income for reinsurance contracts applying the premium allocation approach — — — — — (204 ) 148,744 394 27,190 176,124
Total reinsurance income ~~W~~ 1,504 ~~W~~ 1,300 ~~W~~ — ~~W~~ — ~~W~~ 547 ~~W~~ 88,204 ~~W~~ 148,744 ~~W~~ 394 ~~W~~ 27,190 ~~W~~ 267,883

118

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

29.2 Details of insurance service results for the nine-month periods ended September 30, 2025 and 2024, are as follows: (cont’d)

(In millions of Korean won) 2024
Life insurance Non-life insurance Total
Death Health Pension Variables Compound Long-term General Automobile Overseas
Reinsurance expense:
Reinsurance contracts not applying the premium allocation approach:
Expected recovery of incurred claims and expenses ~~W~~ (905 ) ~~W~~ (1,415 ) ~~W~~ — ~~W~~ — ~~W~~ (844 ) ~~W~~ (139,950 ) ~~W~~ — ~~W~~ — ~~W~~ — ~~W~~ (143,114 )
Changes in risk adjustment due to release of risk (127 ) (65 ) — — (28 ) (6,928 ) — — — (7,148 )
Changes in contractual service margin recognized in profit or loss for the services<br>received (1,316 ) 72 — — (187 ) 1,481 — — — 50
Experience adjustments on reinsurance premiums for current and past service — — — — — 14,373 — — — 14,373
Other reinsurance expenses 17 13 — — 323 — — — — 353
~~W~~ (2,331 ) ~~W~~ (1,395 ) ~~W~~ — ~~W~~ — ~~W~~ (736 ) ~~W~~ (131,024 ) ~~W~~ — ~~W~~ — ~~W~~ — ~~W~~ (135,486 )
Reinsurance expenses for reinsurance contracts applying the premium allocation approach — — — — — (1,308 ) (444,923 ) (5,763 ) (70,689 ) (522,683 )
Total reinsurance expense (2,331 ) (1,395 ) — — (736 ) (132,332 ) (444,923 ) (5,763 ) (70,689 ) (658,169 )
Total insurance service result ~~W~~ 246,539 ~~W~~ 19,116 ~~W~~ 45,990 ~~W~~ 83,996 ~~W~~ (189 ) ~~W~~ 867,393 ~~W~~ 92,028 ~~W~~ 41,175 ~~W~~ (1,758) ~~W~~ 1,394,290

119

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

29.3 Details of insurance finance income and expenses for the nine-month periods ended September 30, 2025 and 2024, are as follows:

(In millions of Korean won) 2025
Life insurance Non-life insurance Total
Retirement Variables Others Long-term General andAutomobile Overseas Others
Investment income (expenses)
Investment income (expenses) recognized in profit or loss:
Net Interest Income (Expense) ~~W~~ 10,601 ~~W~~ 65,772 ~~W~~ 433,716 ~~W~~ 462,000 ~~W~~ 108,228 ~~W~~ 5,099 ~~W~~ (33,939 ) ~~W~~ 1,051,477
Dividend income 357 19,111 14,477 10,665 13,620 4 20,034 78,268
Gain (loss) on valuation and disposal of securities 849 630,089 (15,066 ) 93,484 57,284 411 22,402 789,453
Gain (loss) on valuation and disposal of loans and other receivables — — — (10,570 ) 4,360 — (2,331 ) (8,541 )
Gain (loss) related to derivatives 841 12,676 27,269 34,553 50,807 — (5,947 ) 120,199
Gain (loss) related to investments in subsidiaries — — (498 ) (361 ) — — — (859 )
Foreign exchange gain (loss) (1,597 ) (38,315 ) (67,092 ) (62,168 ) (70,797 ) 138 5,012 (234,819 )
Other investment income (loss) (15,807 ) 24,022 70,591 (64,964 ) 238,832 (498 ) (5,509 ) 246,667
(4,756 ) 713,355 463,397 462,639 402,334 5,154 (278 ) 2,041,845
Investment income (expenses) recognized in other comprehensive income 2,602 — 56,736 (204,802 ) 25,392 1,011 36,604 (82,457 )
Total investment income (expenses) (2,154 ) 713,355 520,133 257,837 427,726 6,165 36,326 1,959,388

120

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

29.3 Details of insurance finance income and expenses for the nine-month periods ended September 30, 2025 and 2024, are as follows: (cont’d)

(In millions of Korean won) 2025
Life insurance Non-life insurance Total
Retirement Variables Others Long-term General andAutomobile Overseas Others
Insurance finance income (expenses)
Insurance finance income (expenses) recognized in profit or loss:
Net Interest Income (Expense) ~~W~~ — ~~W~~ (572 ) ~~W~~ (567,834 ) ~~W~~ (526,028 ) ~~W~~ (23,701 ) ~~W~~ — ~~W~~ — ~~W~~ (1,118,135 )
Effect of changes in discount rates and financial assumptions — — 272 — — — — 272
Effect of exchange rate fluctuations — 4,668 12,593 — 15,262 — — 32,523
Changes in the fair value of the underlying assets of insurance contract with direct participation<br>features — (713,745 ) — — — — — (713,745 )
Other insurance finance income (expenses) — — — (2,344 ) (359 ) 328 — (2,375 )
— (709,649 ) (554,969 ) (528,372 ) (8,798 ) 328 — (1,801,460 )
Insurance finance income (expenses) recognized in other comprehensive income — (40 ) (391,791 ) (723,247 ) (6,361 ) — — (1,121,439 )
Total insurance finance income (expenses) ~~W~~ — ~~W~~ (709,689 ) ~~W~~ (946,760 ) ~~W~~ (1,251,619 ) ~~W~~ (15,159 ) ~~W~~ 328 ~~W~~ — ~~W~~ (2,922,899 )

121

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

29.3 Details of insurance finance income and expenses for the nine-month periods ended September 30, 2025 and 2024, are as follows: (cont’d)

(In millions of Korean won) 2025
Life insurance Non-life insurance Total
Retirement Variables Others Long-term General andAutomobile Overseas Others
Reinsurance finance income (expenses)
Reinsurance finance income (expenses) recognized in profit or loss:
Net Interest Income (Expense) ~~W~~ — ~~W~~ — ~~W~~ (776 ) ~~W~~ 12,277 ~~W~~ 5,925 ~~W~~ — ~~W~~ — ~~W~~ 17,426
Effect of changes in discount rates and financial assumptions — — — — — — — —
Effect of exchange rate fluctuations — — 19 — (20,609 ) — — (20,590 )
Other reinsurance finance income (expenses) — — (10 ) 3,210 7,800 198 — 11,198
— — (767 ) 15,487 (6,884 ) 198 — 8,034
Reinsurance finance income (expenses) recognized in other comprehensive income — — 4,488 (544 ) 6,476 — — 10,420
Total reinsurance finance income (expenses) ~~W~~ — ~~W~~ — ~~W~~ 3,721 ~~W~~ 14,943 ~~W~~ (408 ) ~~W~~ 198 ~~W~~ — ~~W~~ 18,454
Total ~~W~~ (2,154 ) ~~W~~ 3,666 ~~W~~ (422,906 ) ~~W~~ (978,839 ) ~~W~~ 412,159 ~~W~~ 6,691 ~~W~~ 36,326 ~~W~~ (945,057 )

122

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

29.3 Details of insurance finance income and expenses for the nine-month periods ended September 30, 2025 and 2024, are as follows: (cont’d)

(In millions of Korean won) 2024
Life insurance Non-life insurance Total
Retirement Variables Others Long-term General andAutomobile Overseas Others
Investment income (expenses)
Investment income (expenses) recognized in profit or loss:
Net Interest Income (Expense) ~~W~~ 10,575 ~~W~~ 60,828 ~~W~~ 399,141 ~~W~~ 429,829 ~~W~~ 98,807 ~~W~~ 4,389 ~~W~~ (17,249 ) ~~W~~ 986,320
Dividend income — 18,431 9,299 8,418 12,076 7 2,396 50,627
Gain (loss) on valuation and disposal of securities 4,734 212,183 23,173 (17,129 ) 7,599 (232 ) 1,260 231,588
Gain (loss) on valuation and disposal of loans and other receivables — — — 547 (862 ) — (435 ) (750 )
Gain (loss) related to derivatives (2,080 ) (13,543 ) (60,220 ) (68,471 ) (63,493 ) — — (207,807 )
Gain (loss) related to investments in subsidiaries — — (192 ) (703 ) — — — (895 )
Foreign exchange gain (loss) 1,085 19,905 45,091 51,707 38,375 (61 ) — 156,102
Other investment income (loss) (19,228 ) 26,002 69,597 (56,861 ) 219,745 (759 ) 13,803 252,299
(4,914 ) 323,806 485,889 347,337 312,247 3,344 (225 ) 1,467,484
Investment income (expenses) recognized in other comprehensive income 7,802 — 715,493 638,349 56,512 1,006 55,364 1,474,526
Total investment income (expenses) 2,888 323,806 1,201,382 985,686 368,759 4,350 55,139 2,942,010

123

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

29.3 Details of insurance finance income and expenses for the nine-month periods ended September 30, 2025 and 2024, are as follows: (cont’d)

(In millions of Korean won) 2024
Life insurance Non-life insurance Total
Retirement Variables Others Long-term General andAutomobile Overseas Others
Insurance finance income (expenses)
Insurance finance income (expenses) recognized in profit or loss:
Net Interest Income (Expense) ~~W~~ — ~~W~~ (850 ) ~~W~~ (554,062 ) ~~W~~ (547,657 ) ~~W~~ (3,152 ) ~~W~~ — ~~W~~ — ~~W~~ (1,105,721 )
Effect of changes in discount rates and financial assumptions — — (1,686 ) — — — — (1,686 )
Effect of exchange rate fluctuations — (2,532 ) (4,940 ) — (12,645 ) — — (20,117 )
Changes in the fair value of the underlying assets of insurance contract with direct participation<br>features — (311,201 ) — — — — — (311,201 )
Other insurance finance income (expenses) — — — (2,732 ) (1,151 ) (133 ) — (4,016 )
— (314,583 ) (560,688 ) (550,389 ) (16,948 ) (133 ) — (1,442,741 )
Insurance finance income (expenses) recognized in other comprehensive income — (117 ) (1,926,365 ) (1,939,916 ) (2,192 ) — — (3,868,590 )
Total insurance finance income (expenses) ~~W~~ — ~~W~~ (314,700 ) ~~W~~ (2,487,053 ) ~~W~~ (2,490,305 ) ~~W~~ (19,140 ) ~~W~~ (133 ) ~~W~~ — ~~W~~ (5,311,331 )

124

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

29.3 Details of insurance finance income and expenses for the nine-month periods ended September 30, 2025 and 2024, are as follows: (cont’d)

(In millions of Korean won) 2024
Life insurance Non-life insurance Total
Retirement Variables Others Long-term General andAutomobile Overseas Others
Reinsurance finance income (expenses)
Reinsurance finance income (expenses) recognized in profit or loss:
Net Interest Income (Expense) ~~W~~ — ~~W~~ — ~~W~~ (769 ) ~~W~~ 11,072 ~~W~~ 1,410 ~~W~~ — ~~W~~ — ~~W~~ 11,713
Effect of changes in discount rates and financial assumptions — — — — — — — —
Effect of exchange rate fluctuations — — (18 ) — 5,979 — — 5,961
Other reinsurance finance income (expenses) — — — (1,504 ) (20,480 ) (140 ) — (22,124 )
— — (787 ) 9,568 (13,091 ) (140 ) — (4,450 )
Reinsurance finance income (expenses) recognized in other comprehensive income — — (4,476 ) 29,373 3,126 — — 28,023
Total reinsurance finance income (expenses) ~~W~~ — ~~W~~ — ~~W~~ (5,263 ) ~~W~~ 38,941 ~~W~~ (9,965 ) ~~W~~ (140 ) ~~W~~ — ~~W~~ 23,573
Total ~~W~~ 2,888 ~~W~~ 9,106 ~~W~~ (1,290,934 ) ~~W~~ (1,465,678 ) ~~W~~ 339,654 ~~W~~ 4,077 ~~W~~ 55,139 ~~W~~ (2,345,748 )

125

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

30. Statements of Cash Flows

30.1 Details of cash and cash equivalents as of September 30, 2025 and December 31, 2024, are as follows:

(In millions of Korean won) September 30,2025 December 31,2024
Cash ~~W~~ 2,356,400 ~~W~~ 1,954,624
Checks issued by other banks 203,109 124,366
Due from the Bank of Korea 8,572,737 14,372,352
Due from other financial institutions 14,138,512 13,417,769
25,270,758 29,869,111
Due from financial institutions measured at fair value through profit or loss 66,190 59,838
25,336,948 29,928,949
Deduction:
Restricted due from financial institutions* (3,661,044 ) (4,338,818 )
Due from financial institutions with original maturities over three months (790,720 ) (981,264 )
(4,451,764 ) (5,320,082 )
~~W~~ 20,885,184 ~~W~~ 24,608,867
* Items meeting the definition of cash are excluded.
--- ---

30.2 Cash inflows and outflows from income tax, interest, and dividends for the nine-month periods ended September 30, 2025 and 2024, are as follows:

(In millions of Korean won) Activities 2025 2024
Income tax paid Operating ~~W~~ 600,746 ~~W~~ 784,241
Interest received Operating 21,787,861 22,736,549
Interest paid Operating 10,034,394 10,926,039
Dividends received Operating 435,239 331,481
Dividends paid Financing 1,119,777 1,337,256

126

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

31. Contingent Liabilities and Commitments

31.1 Details of acceptances and guarantees as of September 30, 2025 and December 31, 2024, are as follows:

(In millions of Korean won) September 30,2025 December 31,2024
Confirmed acceptances and guarantees
Confirmed acceptances and guarantees in Korean won:
Acceptances and guarantees for KB purchasing loan ~~W~~ 111,767 ~~W~~ 152,129
Others 967,738 900,237
1,079,505 1,052,366
Confirmed acceptances and guarantees in foreign currencies:
Acceptances of letter of credit 320,234 331,423
Letter of guarantees 64,354 45,274
Bid bond 9,372 12,782
Performance bond 1,942,564 1,927,572
Refund guarantees 3,330,169 4,644,429
Others 4,127,207 4,594,667
9,793,900 11,556,147
Financial guarantee contracts:
Acceptances and guarantees for mortgage 24,093 20,790
Overseas debt guarantees 387,688 588,019
International financing guarantees in foreign currencies 698,131 842,838
Others 252,323 —
1,362,235 1,451,647
12,235,640 14,060,160
Unconfirmed acceptances and guarantees
Guarantees of letter of credit 2,416,906 2,268,081
Refund guarantees 1,500,642 1,373,649
3,917,548 3,641,730
~~W~~ 16,153,188 ~~W~~ 17,701,890

127

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

31.2 Details of commitments as of September 30, 2025 and December 31, 2024, are as follows:

(In millions of Korean won) September 30,2025 December 31,2024
Commitments
Corporate loan commitments ~~W~~ 56,129,998 ~~W~~ 57,510,280
Retail loan commitments 59,044,522 59,100,288
Credit line of credit cards 89,223,604 87,204,864
Purchase of other securities 9,272,990 8,880,563
213,671,114 212,695,995
Financial guarantee contracts
Credit line 3,029,600 4,747,946
Purchase of securities 852,858 475,147
3,882,458 5,223,093
~~W~~ 217,553,572 ~~W~~ 217,919,088

31.3 Other Matters

a) The Group has 122 pending lawsuits as a plaintiff (excluding simple lawsuits related to the collection or management of loans), with aggregate claims amount of ~~W~~ 1,746,141 million, and 367 pending lawsuits as a defendant (excluding simple lawsuits related to the collection or management of loans) with aggregate claims amount of ~~W~~ 1,384,708 million, which arose in the normal course of the business, as of September 30, 2025. Details of major pending lawsuits in which the Group is a defendant are as follows:

(In number of cases, in millions of Korean won)
Company Lawsuits No. ofcases Amount Description of the lawsuits Status of the lawsuits
Kookmin Bank Request for a return of redemption amount 1 ~~W~~ 58,907 Kookmin Bank invested the assets entrusted by OO Invest Trust Management in the Fairfield Sentry Limited and Fairfield Sentry Limited<br>reinvested the assets in Bernard L. Madoff Investment Securities LLC managed by Bernard Madoff. (Bernard L. Madoff Investment Securities LLC is in the liquidation process due to Ponzi scheme fraud-related losses.)<br><br><br><br> <br>Bankruptcy trustee of Bernard L. Madoff Investment Securities LLC filed a lawsuit<br>against Kookmin Bank seeking to return the amount of redemptions received by Kookmin Bank through Fairfield Sentry Limited. Application for dismissal by the defendant has been denied, and further proceedings are scheduled. [Related litigation is pending at the New<br>York Southern District Federal Bankruptcy Court (10-3777)]<br> <br><br><br><br>The financial impact on Kookmin Bank is not significant because the likelihood of winning the lawsuit is high

128

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

31.3 Other Matters (cont’d)

(In number of cases, in millions of Korean won)
Company Lawsuits No. ofcases Amount Description of the lawsuits Status of the lawsuits
Kookmin Bank Expropriation of long-term leasehold rights 1 ~~W~~ 350,550 Kookmin Bank invested assets entrusted by OO Asset Management Co., Ltd. in loans that are directly or indirectly collateralized by long-term<br>leasehold rights of the building and the land (hereinafter referred to as “the real estate in this case”) of Union Station in Washington, D.C., the United States.<br> <br><br><br><br>The Plaintiff, who is the operator of the railway facility, filed this lawsuit against those concerned with the real estate in this case, including Kookmin<br>Bank, to expropriate the real estate in this case and determine indemnity.<br> <br><br><br><br>ø  Stakeholders in the real estate in this case: USI<br>– Holder of the real estate in this case USSM – 100% shareholder of USI at the time the lawsuit was filed KB Kookmin Bank – As the trustee of the relevant fund, invested the fund assets in USI and USSM (loans) and acquired senior<br>liens over the real estate in this case, as well as a pledge on 100% of USI’s shares held by USSM. On February 5,2025, the Plaintiff, Kookmin Bank, and USI entered into a settlement agreement, excluding USSM from the defendant, in which the<br>fund agreed to receive a settlement amount of USD 505,000,000 and resolve the dispute.<br> <br><br><br><br>On February 6, 2025, the Plaintiff, Kookmin Bank, and USI jointly submitted a motion to exclude USSM from the defendant and a petition for judgment in<br>accordance with the terms of the settlement to the court.<br> <br><br> <br>On March 5,2025, the court<br>ruled to exclude USSM from the defendant.<br> <br>On March 6, 2025, USSM filed a preliminary appeal.<br><br><br>On March 7, 2025, the court issued a stipulated judgment in accordance with the settlement agreement.<br><br><br><br> <br>The appeal trial is in progress.<br><br><br><br> <br>This lawsuit is related to a fund managed by Kookmin Bank, so the financial impact on<br>Kookmin Bank’s proprietary assets is not significant. However, in the case of a loss in an appeal after the fund assets are distributed, the settlement amount or any loss from a separate lawsuit may be subject to recovery.

129

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

31.3 Other Matters (cont’d)

(In number of cases, in millions of Korean won)
Company Lawsuits No. ofcases Amount Description of the lawsuits Status of the lawsuits
Kookmin Bank Return of unjust enrichment 1 153,182 As MTS Bank, which was trading with Kookmin Bank through a foreign exchange account, was listed on the SDN (Specifically Designated<br>Nationals) list of the Office of Foreign Assets Control (OFAC) under the U.S. Treasury Department, Kookmin Bank froze the foreign currency account in the name of MTS Bank.<br> <br><br><br><br>Accordingly, MTS Bank filed a lawsuit seeking the return of the account balance to the Moscow City Commercial Court in Russia. Responding to local court trial schedule.<br> <br>Due<br>to compliance with U.S. OFAC regulations, it is difficult to easily predict the likelihood of winning the lawsuit being processed in the Russian courts. However, the lawsuit amount can be covered by the balance in the plaintiff’s account, and<br>a financial impact equivalent to the delayed interest is anticipated for the bank.
Claim for damages 1 97,278 PT Bank KB Indonesia Tbk. requested an auction of TMJ’s shares in order to collect the loan to TMJ (a distressed company); NKLI won the<br>auction and then received a loan from the bank for the purpose of purchasing TMJ shares. NKLI’s intention was to take control over TMJ and launch mining business; however, NKLI was unable to take control and launch the business due to legal<br>disputes with the bankruptcy trustee of TMJ and court-appointed mine management company, and also lost a lawsuit against the mine management company.<br> <br><br><br><br>As a result, NKLI filed a legal suit to PT Bank KB Indonesia Tbk. stating that the bank’s recommendation to purchase TMJ’s shares was inappropriate<br>since the bank did not intentionally share the legal issues and associated risks thereof. The third trial is in progress and will work with the legal representative to actively respond.

130

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

31.3 Other Matters (cont’d)

(In number of cases, in millions of Korean won)
Company Lawsuits No. ofcases Amount Description of the lawsuits Status of the lawsuits
KB Securities Co., Ltd. Request for the return of unjust enrichment and transaction amount (Australian fund) 3 59,927 As an investment broker for a private fund that lends money to a corporation (borrower) investing in Australian disability apartment rental business, KB Securities Co., Ltd. brokered investments of ~~W~~ 326,500<br>million in trust products and funds to individual and institutional investors. However, due to the local Australian borrower’s breach of contract, the fund management was suspended, and related to this, a lawsuit was filed against KB<br>Securities Co., Ltd. for the return of unjust enrichment and transaction amount. No. 1 case: The third trial is in progress (The first trial: On February 7, 2023, a ruling was made to pay the principal investment of<br>~~W~~ 29,800 million and the delayed interest on it. The second trial: On January 29, 2024, the conclusion was different; a ruling was made to pay the principal investment of ~~W~~ 12,000 million and the delayed<br>interest on it.)<br> <br><br> <br>No. 2 case: The second trial is in progress (The first trial: On<br>February 14, 2024, a ruling was made to pay the principal investment of ~~W~~ 12,200 million and the delayed interest on it.)<br> <br><br><br><br>No. 3 case: The second trial is in progress (The first trial: On October 26, 2023, a ruling was made to pay the remaining principal and interest of<br>~~W~~ 8,460 million and the delayed interest on the principal of ~~W~~ 8,290 million. The second trial: On January 16, 2025, a ruling was made to return ~~W~~ 4,400 million, which is a<br>portion of the ~~W~~ 8,070 million paid in the first trial.)

Meanwhile, the Group has recognized a provision for litigation amounting to ~~W~~ 116,490 million in the financial statements in relation to the pending lawsuit in which it is a defendant as of September 30, 2025 (Note 17.5).

131

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

31.3 Other Matters (cont’d)

b) As of September 30, 2025, there are a total of 11 pending lawsuits related to the wage peak system, amounting to ~~W~~ 39,008 million. This includes 7 cases for Kookmin Bank with a total claim amount of ~~W~~ 37,944 million, 1 case for KB Securities Co., Ltd. with a claim amount of ~~W~~ 415 million, 1 case for KB Life Insurance Co., Ltd. with a claim amount of ~~W~~ 61 million, 1 case for KB Capital Co., Ltd. with a claim amount of ~~W~~ 388 million and 1 case for KB Asset Management Co., Ltd. with a claim amount of ~~W~~ 200 million. The amount and timing of potential outflows of resources are currently unpredictable.

c) KB Real Estate Trust Co., Ltd. is carrying out the completion guarantee management-type land trust project (16 cases, including Busan Gyeong Bo Industrial Development Co., Ltd.), that bears responsibility for the completion guarantee when the construction company fails to fulfill responsibility for the completion guarantee and bears responsibility for compensating for damages to lending financial institutions as of September 30, 2025. The total credit line of PF loan related to the completion guarantee management-type land trust project is ~~W~~ 1,422,200 million, and the used credit line is ~~W~~ 1,009,400 million, including accrued interest, as of September 30, 2025. In this regard, the Group recognized a provision of ~~W~~ 5,600 million as of the end of the current interim period to reflect the expected losses associated with the trust accounts arising from the fulfillment of its completion guarantee obligations.

In addition, with respect to potential indemnification liabilities that may arise upon failure to fulfill such obligations, the Group recognized an additional provision of ~~W~~ 91,500 million as of the end of the current interim period to reflect the expected losses.

At the end of the current interim period, there are a total of 12 cases for which the completion guarantee obligations have not been fulfilled within the deadline (1 cases under construction and 11 cases completed). The project finance (PF) loan commitment limit for these cases amounts to ~~W~~ 1,090,100 million, and the outstanding balance, including accrued interest, is ~~W~~ 867,300 million.

Among these, a total of six projects (1 case under construction and 5 cases completed) are currently under litigation, with eight pending cases totaling ~~W~~ 116,800 million in dispute. The PF (project finance) loan commitment limit for these projects amounts to ~~W~~ 528,100 million, and the outstanding balance, including accrued interest, is ~~W~~ 285,200 million.

132

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

31.3 Other Matters (cont’d)

d) During 2024, the Financial Supervisory Service conducted a regular inspection of the operations of the holding company and its subsidiaries, Kookmin Bank and KB Life Insurance Co., Ltd. The results of the inspection and any required actions will be notified in the future.

e) Kookmin Bank and KB Securities Co., Ltd. is currently under investigation by the Fair Trade Commission regarding the possibility of unfair joint actions by financial institutions. It is impossible to predict the outcome of the investigation.

f) As of September 30, 2025, KB Securities Co., Ltd. is undergoing a tax audit by the tax authorities, which is expected to be completed during the fourth quarter of 2025. It is impossible to predict the outcome of the tax audit.

g) As of September 30, 2025, KB PRASAC BANK PLC. is undergoing a tax audit by the tax authorities. Currently, the impact on KB PRASAC BANK PLC. cannot be predicted.

h) On April 7, 2023, Kookmin Bank entered into a new share subscription agreement with STIC Eugene Star Holdings Inc.(hereinafter referred to as “STIC”), under which STIC will acquire 31,900,000,000 shares at a price of IDR 3.19 trillion, of which Kookmin Bank’s subsidiary, PT Bank KB Indonesia Tbk, will issue. As a result of the agreement, Kookmin Bank will hold a call option to purchase the shares held by the STIC, starting from 2 years and 6 months after the date of acquisition, for a period of 6 months. If Kookmin Bank does not exercise the call option during the designated period, STIC will have the right to sell the acquired shares back to Kookmin Bank, also known as holding a put option right, within 1 year after the expiration of the call option period.

i) As of September 30, 2025, KB Real Estate Trust Co., Ltd. may lend ~~W~~ 2,792,000 million to the trust accounts, which is part of the total project cost related to borrowing-type land trust contracts (including maintenance projects). Whether or not KB Real Estate Trust Co., Ltd. will lend to a trust account is not an unconditional payment obligation, and the lending is conducted with consideration of all matters such as the cash flow plan of its own account and trust business.

133

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

32. Subsidiaries

32.1 Details of major consolidated subsidiaries as of September 30, 2025, are as follows:

Investor Investee Ownership(%) Location Date offinancialstatements Industry
KB Financial Group Inc. Kookmin Bank 100.00 Korea Sep. 30 Banking and foreign exchange transaction
KB Kookmin Card Co., Ltd. 100.00 Korea Sep. 30 Credit card and installment financing
KB Asset Management Co., Ltd. 100.00 Korea Sep. 30 Collective investment and advisory
KB Capital Co., Ltd. 100.00 Korea Sep. 30 Financial Leasing
KB Savings Bank Co., Ltd. 100.00 Korea Sep. 30 Savings banking
KB Real Estate Trust Co., Ltd. 100.00 Korea Sep. 30 Real estate trust management
KB Investment Co., Ltd. 100.00 Korea Sep. 30 Capital investment
KB Data System Co., Ltd. 100.00 Korea Sep. 30 Software advisory, development, and supply
KB Securities Co., Ltd. 100.00 Korea Sep. 30 Financial investment
KB Insurance Co., Ltd. 100.00 Korea Sep. 30 Non-life insurance
KB Life Insurance Co., Ltd. 100.00 Korea Sep. 30 Life insurance
Kookmin Bank KB PRASAC BANK PLC. 100.00 Cambodia Sep. 30 Banking and foreign exchange transaction
Kookmin Bank China Ltd. 100.00 China Sep. 30 Banking and foreign exchange transaction
KB Microfinance Myanmar Co., Ltd. 100.00 Myanmar Sep. 30 Microfinance services
PT Bank KB Bukopin<br><br><br>Syariah^5^ 95.92 Indonesia Sep. 30 Banking
PT KB Bukopin Finance^6^ 99.24 Indonesia Sep. 30 Installment financing
KB Bank Myanmar Co., Ltd. 100.00 Myanmar Sep. 30 Banking and foreign exchange transaction
KB FUND PARTNERS Co., Ltd. 100.00 Korea Sep. 30 Other financial services

134

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

32.1 Details of major consolidated subsidiaries as of September 30, 2025, are as follows: (cont’d)

Investor Investee Ownership(%) Location Date offinancialstatements Industry
Kookmin Bank, KB Kookmin Card Co., Ltd., KB Securities Co., Ltd., KB Insurance Co., Ltd., KB<br>Capital Co., Ltd. PT Bank KB Indonesia Tbk.^7^ 67.57 ^1^ Indonesia Sep. 30 Banking and foreign exchange transaction
KB Securities Co., Ltd. KBFG Securities America Inc. 100.00 United<br>States Sep. 30 Investment advisory and securities trading
KB Securities Hong Kong Ltd. 100.00 China Sep. 30 Investment advisory and securities trading
KB Securities Vietnam Joint Stock Company 99.81 Vietnam Sep. 30 Investment advisory and securities trading
KB FINA COMPANY LIMITED^8^ 100.00 Vietnam Sep. 30 Investment advisory and securities trading
PT KB VALBURY SEKURITAS 65.00 Indonesia Sep. 30 Investment advisory and securities trading
KB Insurance Co., Ltd. Leading Insurance Services, Inc. 100.00 United<br>States Sep. 30 Management service
KBFG Insurance(China) Co., Ltd. 100.00 China Sep. 30 Non-life insurance
PT. KB Insurance Indonesia 70.00 Indonesia Sep. 30 Non-life insurance
KB Claims Survey & Adjusting 100.00 Korea Sep. 30 Claim service
KB Sonbo CNS 100.00 Korea Sep. 30 Management service
KB Healthcare Co., Ltd. 100.00 Korea Sep. 30 Information and communication
KB Life Insurance Co., Ltd. KB Life Partners Co., Ltd. 100.00 Korea Sep. 30 Insurance agent
KB Golden Life Care Co., Ltd. 100.00 Korea Sep. 30 Service
KB Kookmin Card Co., Ltd. KB Credit Information Co., Ltd. 100.00 Korea Sep. 30 Collection of receivables or credit investigation
KB Daehan Specialized Bank Plc.^3^ 97.50 Cambodia Sep. 30 Specialized Credit Finance
PT. KB Finansia Multi Finance 85.00 Indonesia Sep. 30 Specialized Credit Finance
KB J Capital Co., Ltd. 77.40 Thailand Sep. 30 Specialized Credit Finance
KB Capital Co., Ltd. PT Sunindo Kookmin Best Finance 85.00 Indonesia Sep. 30 Auto Installment finance
KB Fintech Co., Ltd.^4^ 95.95 Korea Sep. 30 E-commerce

135

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

32.1 Details of major consolidated subsidiaries as of September 30, 2025, are as follows: (cont’d)

Investor Investee Ownership(%) Location Date offinancialstatements Industry
KB Kookmin Card Co., Ltd., KB Capital Co., Ltd. KB KOLAO Leasing Co., Ltd. 80.00 Laos Sep. 30 Auto Installment finance
Kookmin Bank, KB Data System Co., Ltd. PT KB Data Systems Indonesia 100.00 Indonesia Sep. 30 Service
KB Asset Management Co., Ltd. KBAM Shanghai Advisory Services Co., Ltd. 100.00 China Sep. 30 General advisory
PT KB Valbury Capital Management ^2^ 70.00 Indonesia Sep. 30 Collective investment
KB Asset Management Singapore PTE. LTD. 100.00 Singapore Sep. 30 Collective investment
^1^ Among the ownership in PT Bank KB Indonesia Tbk., 0.05% (100,000,000 shares) is no-voting shares with<br>no-dividends.
--- ---
^2^ In January 2024, PT Valbury Capital Management was changed from a subsidiary of KB Securities Co., Ltd. to a<br>subsidiary of KB Asset Management Co., Ltd., and its name was changed to PT KB Valbury Asset Management during the second quarter.
--- ---
^3^ KB DAEHAN SPECIALIZED BANK PLC. (merging entity) merged with i-Finance Leasing PLC.(merged entity) on<br>December 19, 2024.
--- ---
^4^ On October 14, 2024, Teamwink Co., Ltd. changed its name to KB Fintech Co., Ltd.
--- ---
^5^ During the third quarter of 2025, PT Bank Syariah Bukopin changed its name to PT Bank KB Bukopin Syariah.<br>
--- ---
^6^ During the third quarter of 2025, PT Bukopin Finance changed its name to PT KB Bukopin Finance.<br>
--- ---
^7^ During the third quarter of 2025, PT Bank KB Bukopin,Tbk. changed its name to PT Bank KB Indonesia,Tbk.<br>
--- ---
^8^ During the third quarter of 2025, KB FINA Joint Stock Company changed its name to KB FINA COMPANY LIMITED.<br>
--- ---

32.2 Details of consolidated structured entities as of September 30, 2025, are as follows:

Consolidated structured entities Reasons for consolidation
Trusts Kookmin Bank (development trust) and 10 others The Group controls the trust because it has power to determine management performance of the trust and is significantly exposed to variable returns that absorb losses through the guarantees of payment of principal, or payment of<br>principal and fixed rate of return.
Asset-backed securitization Taejon Samho The First Co., Ltd. and 78 others The Group controls these investees because it has power over relevant activities in the event of default, is significantly exposed to variable returns by providing lines of credit or ABCP purchase commitments or acquiring<br>subordinated debt and has ability to affect those returns through its power.
Investment funds and others KB Global Platform Fund No. 2 and 229 others Funds are consolidated if the Group, as a collective investor or operating manager (member), etc., can manage fund assets on behalf of other investors or dismiss the collective investor and operating manager, and is substantially<br>exposed to significant variable returns or has such rights.

136

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

If the Group holds more than half of the ownership interests but does not have the power over relevant activities of structured entities in accordance with agreements with trust and other related parties, those structured entities are excluded from the consolidation.

32.3 Condensed financial information of major subsidiaries as of September 30, 2025 and December 31, 2024 and for the nine-month periods ended September 30, 2025 and 2024, are as follows:

(In millions of Korean won)

September 30, 2025 Nine-month periods ended September 30, 2025
Assets Liabilities Equity Operatingrevenue Profit (loss)attributable toshareholders ofthe ParentCompany Total compre-hensive income(loss) attributableto shareholdersof the ParentCompany
Kookmin Bank ^1^ ~~W~~ 582,774,707 ~~W~~ 543,159,901 ~~W~~ 39,614,806 ~~W~~ 31,425,703 ~~W~~ 3,364,548 ~~W~~ 3,275,347
KB Securities Co., Ltd. ^1,2^ 75,785,814 68,770,173 7,015,641 8,943,973 496,669 489,967
KB Insurance Co., Ltd. ^1,2^ 43,474,860 37,854,788 5,620,072 10,373,918 766,922 126,019
KB Kookmin Card Co., Ltd.^1^ 30,481,956 24,922,900 5,559,056 3,253,613 280,638 273,548
KB Life Insurance Co., Ltd.^1,2^ 36,173,123 33,312,677 2,860,446 2,415,649 170,508 (70,616 )
KB Asset Management Co., Ltd. ^1^ 479,167 107,987 371,180 243,953 96,733 95,825
KB Capital Co., Ltd. ^1,2^ 18,229,871 15,592,381 2,637,490 2,024,401 194,480 196,800
KB Real Estate Trust Co., Ltd. 1,169,344 711,597 457,747 152,392 (17,883 ) (17,876 )
KB Savings Bank Co., Ltd. 2,480,956 2,301,086 179,870 152,397 (2,522 ) (2,543 )
KB Investment Co., Ltd. ^1^ 1,529,767 1,234,602 295,165 137,578 11,240 11,225
KB Data System Co., Ltd. ^1^ 80,900 51,730 29,170 214,109 7,117 7,119

137

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

32.3 Condensed financial information of major subsidiaries as of September 30, 2025 and December 31, 2024 and for the nine-month periods ended September 30, 2025 and 2024, are as follows: (cont’d)

(In millions of Korean won)

December 31, 2024 Nine-month periods ended September 30, 2024
Assets Liabilities Equity Operatingrevenue Profit (loss)attributable toshareholdersof the ParentCompany Total compre-hensive income(loss) attributableto shareholdersof the ParentCompany
Kookmin Bank^1^ ~~W~~ 562,887,180 ~~W~~ 524,859,860 ~~W~~ 38,027,320 ~~W~~ 34,096,985 ~~W~~ 2,617,890 ~~W~~ 2,667,867
KB Securities Co., Ltd. ^1,2^ 63,384,389 56,498,405 6,885,984 7,985,764 546,790 555,443
KB Insurance Co., Ltd. ^1,2^ 40,776,375 34,982,351 5,794,024 9,314,738 740,172 (30,463 )
KB Kookmin Card Co., Ltd.^1^ 30,541,628 25,236,827 5,304,801 3,302,592 370,383 382,618
KB Life Insurance Co., Ltd.^1,2^ 34,047,554 30,984,400 3,063,154 1,985,714 194,176 (914,275 )
KB Asset Management Co., Ltd. ^1^ 414,942 120,224 294,718 187,445 58,522 58,826
KB Capital Co., Ltd. ^1,2^ 18,115,495 15,654,177 2,461,318 1,910,827 195,663 199,782
KB Real Estate Trust Co., Ltd. 1,113,466 627,898 485,568 106,098 (86,139 ) (86,146 )
KB Savings Bank Co., Ltd. 2,575,739 2,393,523 182,216 175,801 708 656
KB Investment Co., Ltd. ^1^ 1,529,823 1,245,883 283,940 130,059 9,238 9,238
KB Data System Co., Ltd. ^1^ 62,270 40,219 22,051 177,231 1,834 2,016
^1^ Financial information is based on its consolidated financial statements.
--- ---
^2^ Includes fair value adjustments arising from the acquisition.
--- ---

138

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

32.4 The Characteristics of Risks Associated with Consolidated Structured Entities

The terms of contractual arrangements to provide financial support to consolidated structured entities are as follows:

32.4.1 The Group has provided payment guarantees of ~~W~~ 3,923,602 million to KB D TOWER 1ST LLC and other consolidated structured entities

32.4.2 The Group has provided capital commitment to 79 consolidated structured entities including KB Sinansan Line Private Special Asset Fund (SOC). The unexecuted amount of the capital commitment is ~~W~~ 2,079,395 million. Based on the capital commitment, the Group is subject to increase its investment upon the request of the asset management company or the additional agreement among investors.

32.4.3 The Group has provided the guarantees of payment of principal, or principal and fixed rate of return in case the operating results of the trusts are less than the guaranteed principal, or principal and fixed rate of return.

32.5 Changes in Subsidiaries

32.5.1 Subsidiaries newly included in consolidation for the nine-month period ended September 30, 2025, are as follows:

Company Reasons of obtaining control
iM Asset General Private Securities Investment Trust NO. 55 and 13 others Holding a majority ownership interests
KB Great On 1st. LLC and 27 others. Has power over relevant activities in the event of default and is exposed to significant variable<br>returns by providing lines of credit or ABCP purchase commitments or acquiring subordinated debt
KB HL Infra Private Special Asset Fund 1(FoFs) and 31 others. Holds the power to determine the operation of the funds and is exposed to variable returns by<br>holding significant amount of ownership interests

32.5.2 Subsidiaries excluded from consolidation for the nine-month period ended September 30, 2025, are as follows:

Company Reasons of losing control
Able Eunhwasam 2nd Co., Ltd. and 23 others. Termination of the commitments
KB High-Tech Company Investment Fund and 13 others. Liquidation
Black Sapphire Holdings Co., Ltd. Disposal
KB RISE Global AI Value Chain ETF MoaDream Securities Fund (FoFs) and 17 others. Decrease in ownership interests to less than majority

139

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

33. Related Party Transactions

According to Korean IFRS No. 1024, the Group includes investments in associates, key management personnel (including family members), and post-employment benefit plans of the Group and its related party companies in the scope of related parties. The Group discloses balances (receivables and payables) and other amounts arising from transactions with related parties in the notes to the consolidated financial statements.

33.1 Details of significant profit or loss arising from transactions with related parties for the nine-month periods ended September 30, 2025 and 2024, are as follows:

(In millions of Korean won)

2025 2024
Associates and joint ventures
Balhae Infrastructure Company Fee and commission income ~~W~~ 4,728 ~~W~~ 3,906
Korea Credit Bureau Co., Ltd. Interest expense 5 —
Fee and commission income 507 550
Fee and commission expense 8,978 7,337
Insurance income 3 3
Reversal of credit losses — 2
Other operating expenses 7 9
Incheon Bridge Co., Ltd. Interest income 6,658 10,435
Interest expense 658 746
Fee and commission income 34 25
Fee and commission expense 10 7
Insurance income 189 165
Gains on financial instruments at fair value through profit or loss — 1,281
Losses on financial instruments at fair value through profit or loss 75 —
Reversal of credit losses 3 4
Provision for credit losses 1 —
Aju Good Technology Venture Fund Interest expense — 3
Star-Lord General Investors Private Real Estate Investment Company No. 10 Insurance income 72 90
Interest income 4,080 4,449
Interest expense 533 225
Provision for credit losses 1 —
General and administrative expenses 8,758 6,979
Other income 917 —
Other expense 59 —
Food Factory Co., Ltd. Interest income 37 307
Interest expense 1 1
Insurance income 3 2
Losses on financial instruments at fair value through profit or loss — 238
Provision for credit losses 1 —
POSCO-KB Shipbuilding Fund Fee and commission income (34 ) —
Big Dipper Co., Ltd. Fee and commission expense 201 193
Reversal of credit losses 2 —
KB-TS Technology Venture Private Equity Fund Fee and commission income 127 132
KB-SJ Tourism Venture Fund Fee and commission income 279 243

140

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

33.1 Details of significant profit or loss arising from transactions with related parties for the nine-month periods ended September 30, 2025 and 2024, are as follows: (cont’d)

(In millions of Korean won)

2025 2024
Banksalad Co., Ltd. Gains on financial instruments at fair value through profit or loss ~~W~~ 443 ~~W~~ —
Losses on financial instruments at fair value through profit or loss — 5,417
Fee and commission income 45 27
Fee and commission expense — 4
Bioprotect Ltd. Gains on financial instruments at fair value through profit or loss — 511
Losses on financial instruments at fair value through profit or loss 366 —
RMGP Bio-Pharma Investment Fund, L.P. Fee and commission income 21 32
Gains on financial instruments at fair value through profit or loss — 489
Losses on financial instruments at fair value through profit or loss 3,547 519
RMGP Bio-Pharma Investment, L.P. Gains on financial instruments at fair value through profit or loss — 2
Losses on financial instruments at fair value through profit or loss 2 —
KB-MDI Centauri Fund LP Fee and commission income 294 330
Gains on financial instruments at fair value through profit or loss 203 1,470
Losses on financial instruments at fair value through profit or loss 1,575 1,000
Hibiscus Fund LP Fee and commission income 206 571
Gains on financial instruments at fair value through profit or loss 1,155 861
Losses on financial instruments at fair value through profit or loss 380 —
RMG-KB BP Management Ltd. Gains on financial instruments at fair value through profit or loss — 15
Losses on financial instruments at fair value through profit or loss 28 —
RMG-KB BioAccess Fund L.P. Fee and commission income 264 252
Gains on financial instruments at fair value through profit or loss — 200
Losses on financial instruments at fair value through profit or loss 1,361 810
S&E Bio Co., Ltd. Interest income 56 25
Interest expense 6 11
Provision for credit losses — 17
Contents First Inc. Interest income 290 384
Interest expense 10 27
Fee and commission income — 1
Losses on financial instruments at fair value through profit or loss 98 —
Provision for credit losses 13 5
Reversal of credit losses — 1

141

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

33.1 Details of significant profit or loss arising from transactions with related parties for the nine-month periods ended September 30, 2025 and 2024, are as follows: (cont’d)

(In millions of Korean won)

2025 2024
Pin Therapeutics Inc. Interest expense ~~W~~ 122 ~~W~~ 44
Provision for credit losses — 13
Reversal of credit losses 1 —
Wyatt Corp. * Interest income — 378
Gains on financial instruments at fair value through profit or loss 1,152 2,739
Insurance income 40 103
KB-Brain KOSDAQ Scale-up New Technology Business Investment Fund * Interest expense — 4
Spark Biopharma Inc. Interest expense 55 259
Provision for credit losses — 13
Reversal of credit losses 1 —
Gains on financial instruments at fair value through profit or loss 173 —
Losses on financial instruments at fair value through profit or loss 69 —
Skydigital Inc. Fee and commission income 2 1
SO-MYUNG Recycling Co., Ltd. Insurance income — 1
KB No.21 Special Purpose Acquisition Company * Gains on financial instruments at fair value through profit or loss — 282
Interest expense (1 ) 57
KB No.22 Special Purpose Acquisition Company * Interest expense — 1
KB No.25 Special Purpose Acquisition Company Interest expense 28 40
Gains on financial instruments at fair value through profit or loss 34 359
KB No.26 Special Purpose Acquisition Company * Interest expense (29 ) 42
Losses on financial instruments at fair value through profit or loss — 32
KB No.27 Special Purpose Acquisition Company Interest expense 107 120
Gains on financial instruments at fair value through profit or loss 295 —
Losses on financial instruments at fair value through profit or loss — 17
KB No.28 Special Purpose Acquisition Company * Interest expense 9 32
Fee and commission income — 175
Gains on financial instruments at fair value through profit or loss — 1,151
Losses on financial instruments at fair value through profit or loss 798 —
KB No.29 Special Purpose Acquisition Company Fee and commission income — 210
Gains on financial instruments at fair value through profit or loss 94 1,608
Interest expense 39 29

142

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

33.1 Details of significant profit or loss arising from transactions with related parties for the nine-month periods ended September 30, 2025 and 2024, are as follows: (cont’d)

(In millions of Korean won)

2025 2024
KB No.30 Special Purpose Acquisition Company Interest expense ~~W~~ 28 ~~W~~ 10
Fee and commission income — 175
Gains on financial instruments at fair value through profit or loss 17 1,511
KB No.31 Special Purpose Acquisition Company Gains on financial instruments at fair value through profit or loss 126 —
Interest expense 38 —
KB No.33 Special Purpose Acquisition Company Interest expense 13 —
Gains on financial instruments at fair value through profit or loss 2,076 —
KB SPROTT Renewable Private Equity Fund No.1 Fee and commission income 58 212
KB-Stonebridge Secondary Private Equity Fund Fee and commission income 231 303
COSES GT Co., Ltd. * Gains on financial instruments at fair value through profit or loss — 20
TeamSparta Inc. * Fee and commission income 3 54
Interest expense 87 116
Newavel Co., Ltd. Fee and commission income 1 —
SuperNGine Co., Ltd. Interest income 26 32
Provision for credit losses — 36
Reversal of credit losses 19 —
Desilo Inc. Interest income 11 11
Turing Co., Ltd. Interest expense — 29
Interest income 31 55
Reversal of credit losses — 7
ZIPDOC Inc. * Losses on financial instruments at fair value through profit or loss — 1,209
Grinergy Co., Ltd. Gains on financial instruments at fair value through profit or loss 307 516
Losses on financial instruments at fair value through profit or loss — 216
Reversal of credit losses 2 —
Chabot Mobility Co., Ltd. * Fee and commission income 1 1
Interest expense 5 —
Fee and commission expense 1,109 1,867
Gains on financial instruments at fair value through profit or loss — 417
Wemade Connect Co., Ltd. Insurance income 4 1
Interest expense 120 222
Reversal of credit losses 4 —
Provision for credit losses — 21
Gains on financial instruments at fair value through profit or loss 1,492 —
Losses on financial instruments at fair value through profit or loss — 4,562

143

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

33.1 Details of significant profit or loss arising from transactions with related parties for the nine-month periods ended September 30, 2025 and 2024, are as follows: (cont’d)

(In millions of Korean won)

2025 2024
TMAP Mobility Co., Ltd. Interest expense ~~W~~ 1,737 ~~W~~ 2,177
Fee and commission income 2 5
Fee and commission expense 612 890
Provision for credit losses — 3
Insurance income 1,370 271
Nextrade Co., Ltd. Fee and commission income 2 —
Interest expense 565 2,038
WJ Private Equity Fund No.1 Fee and commission income 5 5
UPRISE, Inc. Gains on financial instruments at fair value through profit or loss 104 —
Losses on financial instruments at fair value through profit or loss 95 4,056
Channel Corporation Interest expense — 10
Losses on financial instruments at fair value through profit or loss 280 —
Gains on financial instruments at fair value through profit or loss 7,673 2,266
CWhy Inc. * Insurance income — 6
CellinCells Co., Ltd. * Provision for credit losses 1 4
KB Social Impact Investment Fund Fee and commission income 150 200
KB-UTC Inno-Tech Venture Fund Fee and commission income 105 192
KB-SP Private Equity Fund IV * Fee and commission income 63 —
KB-NAU Special Situation Corporate Restructuring Private Equity Fund Fee and commission income 602 469
2020 KB Fintech Renaissance Fund Fee and commission income 70 110
KB Material and Parts No.1 PEF * Fee and commission income — 175
FineKB Private Equity Fund No.1 Fee and commission income 330 425
Gains on financial instruments at fair value through profit or loss 32 32
Interest expense 1 —
Paramark KB Fund No.1 Fee and commission income 97 86
KB-Badgers Future Mobility ESG Fund No.1 Fee and commission income 941 973
Gains on financial instruments at fair value through profit or loss 1 1
KB-KTB Technology Venture Fund Fee and commission income 297 276
Bluepointpartners Inc. Gains on financial instruments at fair value through profit or loss — 30
Losses on financial instruments at fair value through profit or loss 20 —
KB-Solidus Global Healthcare Fund Fee and commission income 855 17
Gains on financial instruments at fair value through profit or loss 5,300 700

144

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

33.1 Details of significant profit or loss arising from transactions with related parties for the nine-month periods ended September 30, 2025 and 2024, are as follows: (cont’d)

(In millions of Korean won)

2025 2024
ASSEMBLE CORPORATION Interest income ~~W~~ 100 ~~W~~ 84
Fee and commission income 1 1
Insurance income 1 1
Reversal of credit losses 13 21
KB Cape No.1 Private Equity Fund * Fee and commission income — 37
Gains on financial instruments at fair value through profit or loss — 82
KB-GeneN Medical Venture Fund No.1 Fee and commission income 66 66
KB-BridgePole Venture Investment Fund No.2 Fee and commission income 79 79
KB-Kyobo New Mobility Power Fund * Fee and commission income — 59
KB Co-Investment Private Equity Fund No.1 Fee and commission income 1,442 1,102
KB-NP Green ESG New Technology Venture Capital Fund Fee and commission income 779 868
KB-FT Green Growth 1st Technology Investment Association Fee and commission income 101 102
Interest expense — 12
Spoonlabs Co., Ltd. * Losses on financial instruments at fair value through profit or loss — 1,316
Gushcloud Talent Agency Gains on financial instruments at fair value through profit or loss — 228
KB-SUSUNG 1st Investment Fund Fee and commission income 112 144
KB-SUSUNG 2nd Investment Fund Fee and commission income 115 39
Seokwang T&I Co., Ltd Insurance income 1 1
3D Interactive Co., Ltd. Fee and commission income — 1
Reversal of credit losses 1 —
Bigwave Robotics Corp. Fee and commission income — 1
Interest expense (5 ) 2
Provision for credit losses 10 —
Gains on financial instruments at fair value through profit or loss 1,368 —
U-KB Credit No.1S Private Equity Fee and commission income 724 724
KY Global Cell & Gene Private Equity Fund 2nd * Interest expense — -38
KB-SOLIDUS Healthcare Investment Fund Fee and commission income 640 572
AKK Robotech Valueup New Technology Investment Fund * Fee and commission income 235 70
New Daegu Busan Expressway Co., Ltd. Interest income 346 2,070
Reversal of credit losses 1 4
Interest expense 1,623 3,048
Insurance income 312 171

145

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

33.1 Details of significant profit or loss arising from transactions with related parties for the nine-month periods ended September 30, 2025 and 202, are as follows: (cont’d)

(In millions of Korean won)

2025 2024
AIM FUTURE, Inc. Interest income ~~W~~ 31 ~~W~~ 33
Interest expense — 48
Provision for credit losses 1 3
ADP Holdings Co., Ltd. Interest expense 43 44
ADPGREEN Interest expense 75 12
Provision for credit losses — 12
Reversal of credit losses 6 —
Insurance income 129 29
KB-CJ Venture Fund 1st Fee and commission income 112 42
OKXE Inc. Gains on financial instruments at fair value through profit or loss — 1,412
Ascent Global Fund III LP Gains on financial instruments at fair value through profit or loss — 54
Losses on financial instruments at fair value through profit or loss 291 —
Elev8-Capital Fund I Gains on financial instruments at fair value through profit or loss — 612
Losses on financial instruments at fair value through profit or loss 1,800 —
H Energy Co., Ltd * Gains on financial instruments at fair value through profit or loss — 3,106
XL8 INC. Gains on financial instruments at fair value through profit or loss — 398
Losses on financial instruments at fair value through profit or loss 454 —
SDT Inc. Interest expense — 13
Losses on financial instruments at fair value through profit or loss 334 17
DYNE MEDICAL GROUP Inc. Interest income 44 1
Interest expense 32 95
Insurance income 3 3
Provision for credit losses 2 14
Reversal of credit losses 1 —
Bitgoeul Cheomdan Green 1st Co., Ltd. Interest expense 1 1
Logpresso Inc. Interest expense 1 3
Onheal Co., Ltd. Interest expense — (20 )
TriOar Inc. Interest expense 78 190
Blinkers Inc. * Losses on financial instruments at fair value through profit or loss — 508
KB-VEP Contact Fund Fee and commission income 45 29
SD Speed Co.,Ltd. Insurance income 1 —
Xpanner Inc. Insurance income 1 —
Gains on financial instruments at fair value through profit or loss 573 —
Losses on financial instruments at fair value through profit or loss 453 —
KB-Cyrus Tourism Venture Fund Fee and commission income 253 —

146

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

33.1 Details of significant profit or loss arising from transactions with related parties for the nine-month periods ended September 30, 2025 and 2024, are as follows: (cont’d)

(In millions of Korean won)

2025 2024
FineKB Private Equity Fund No.2 Fee and commission income ~~W~~ 104 ~~W~~ —
GCSM Holdings Limited Gains on financial instruments at fair value through profit or loss 459 —
Losses on financial instruments at fair value through profit or loss 735 —
MitoImmune Therapeutics Losses on financial instruments at fair value through profit or loss 1,574 —
KB Rejuvenation Fund Fee and commission income 112 —
Allra Fintech Corp. Provision for credit losses 1 —
Interest expense 4 —
Yeoulhyulgangho Interest expense 5 —
E&I Holdings * Fee and commission income 3,446 —
KB-IMM New Star Real Estate Private Fund I Fee and commission income 317 —
Xenohelix Co., Ltd. Interest income 20 —
Provision for credit losses 8 —
Koru Pharma Co., Ltd. Insurance income 2 —
Interest expense 1 —
WhaTap Laps Inc. Gains on financial instruments at fair value through profit or loss 222 —
Interest expense 80 —
Streami Inc. Gains on financial instruments at fair value through profit or loss 283 —
IMBiologics Corp. Provision for credit losses 1 —
Gains on financial instruments at fair value through profit or loss 6,186 —
KB-LB Middle Market Enterprises Innovation Private Equity Fund Fee and commission income 897 —
Semicolon Susong REITs Co., Ltd. Fee and commission income 4,793 —
Interest income 342 —
Insurance income 12 —
Provision for credit losses 5 —
KB-Novus Genesis Private Equity Fund Fee and commission income 60 —
Novorex Inc. Interest expense 4 —
Provision for credit losses 8 —
KB No.32 Special Purpose Acquisition Company Interest expense 23 —
Al Spera Inc. Interest expense 26 —
Aldaver Interest expense 18 —
ANTIGRAVITY Interest income 2 —
Provision for credit losses 1 —
enParticle Co., Ltd Interest expense 2 —
Emocog Inc. Interest expense 46 —
Lemontree Inc. Interest expense 1 —
Fee and commission income 126 —
Fee and commission expense 38 —
Provision for credit losses 2 —

147

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

33.1 Details of significant profit or loss arising from transactions with related parties for the nine-month periods ended September 30, 2025 and 2024, are as follows: (cont’d)

(In millions of Korean won)

2025 2024
Aculys Pharma, Inc. Losses on financial instruments at fair value through profit or loss ~~W~~ 520 ~~W~~ —
K-1 23th yeoksam Real Estate Investment Trust company Itd Insurance income 2 —
AIM-KB-DOUBLE Connected Future Investment Fund Fee and commission income 12 —
Others —
Retirement pension Fee and commission income 1,124 1,296
Interest expense ~~W~~ 20 ~~W~~ 40
* Excluded from the Group’s related party as at September 30, 2025.
--- ---

148

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

33.2 Details of significant outstanding balances of receivables and payables arising from transactions with related parties as of September 30, 2025 and December 31, 2024, are as follows:

(In millions of Korean won) September 30,<br>2025 December 31,<br>2024
Associates and joint ventures
Balhae Infrastructure Company Other assets ~~W~~ 1,702 ~~W~~ 1,431
Korea Credit Bureau Co., Ltd. Loans measured at amortized cost (gross amount) 39 36
Deposits 8,933 40,570
Insurance liabilities 2 1
Other liabilities 3 —
Incheon Bridge Co., Ltd. Financial assets at fair value through profit or loss 35,336 35,411
Loans measured at amortized cost (gross amount) 62,141 70,012
Allowances for credit losses 29 31
Other assets 310 389
Deposits 63,458 43,867
Provisions 40 40
Insurance liabilities 186 89
Other liabilities 325 442
Jungdo Co., Ltd. Deposits 4 4
Aju Good Technology Venture Fund Deposits 39 1,809
Star-Lord General Investors Private Real Estate Investment Company No.10 Loans measured at amortized cost (gross amount) 149,523 149,898
Allowances for credit losses 6 5
Property and equipment 30,739 4,356
Other assets 8,335 8,860
Insurance liabilities 51 35
Other liabilities 30,492 5,107
WJ Private Equity Fund No.1 Other assets 2 2
Deposits 38 46
RAND Bio Science Co., Ltd. * Deposits — 4
Food Factory Co., Ltd. Loans measured at amortized cost (gross amount) 1,994 1,764
Allowances for credit losses 2 1
Other assets 12 4
Deposits 851 907
Insurance liabilities 5 8
Other liabilities 1 1
Big Dipper Co., Ltd. Loans measured at amortized cost (gross amount) 30 43
Allowances for credit losses 1 3
Deposits 44 123
Other liabilities 10 8
KB-KDBC Pre-IPO New Technology Business Investment Fund Deposits 250 39
Iwon Alloy Co., Ltd. Deposits — 2

149

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

33.2 Details of significant outstanding balances of receivables and payables arising from transactions with related parties as of September 30, 2025 and December 31, 2024, are as follows: (cont’d)

(In millions of Korean won) September 30,<br>2025 December 31,<br>2024
RMGP Bio-Pharma Investment Fund, L.P. Financial assets at fair value through profit or loss ~~W~~ 2,796 ~~W~~ 7,205
Other liabilities 10 3
RMGP Bio-Pharma Investment, L.P. Financial assets at fair value through profit or loss 21 25
Wyatt Corp. * Financial assets at fair value through profit or loss — 3,000
Deposits — 1
Insurance liabilities — 78
Skydigital Inc. Deposits 10 30
Banksalad Co., Ltd. Financial assets at fair value through profit or loss 2,501 2,059
Spark Biopharma Inc. Financial assets at fair value through profit or loss 4,738 4,634
Loans measured at amortized cost (gross amount) 10 15
Deposits 1,557 4,759
Other liabilities 5 22
Allowances for credit losses 5 7
Provisions 7 6
UPRISE, Inc. Financial assets at fair value through profit or loss 1,826 1,817
Stratio, Inc. Financial assets at fair value through profit or loss 1,000 1,000
HonestAl Co., LTD. Financial assets at fair value through profit or loss 442 442
CellinCells Co., Ltd. * Financial assets at fair value through profit or loss — 2,000
Loans measured at amortized cost (gross amount) 2 1
Allowances for credit losses 1 —
Deposits — 13
Provisions 2 1
Channel Corporation Financial assets at fair value through profit or loss 14,300 20,141
Deposits — 6
KB No.21 Special Purpose Acquisition Company * Financial assets at fair value through profit or loss — 3,122
Deposits — 2,247
Other liabilities — 36
KB No.25 Special Purpose Acquisition Company Financial assets at fair value through profit or loss 1,884 1,850
Deposits 1,593 1,545
Other liabilities 11 39
KB No.26 Special Purpose Acquisition Company * Financial assets at fair value through profit or loss — 2,150
Deposits — 1,763
Other liabilities — 31

150

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

33.2 Details of significant outstanding balances of receivables and payables arising from transactions with related parties as of September 30, 2025 and December 31, 2024, are as follows: (cont’d)

(In millions of Korean won) September 30,<br>2025 December 31,<br>2024
KB No.27 Special Purpose Acquisition Company Financial assets at fair value through profit or loss ~~W~~ 6,172 ~~W~~ 5,877
Deposits 4,680 4,613
Other liabilities 13 55
KB No.28 Special Purpose Acquisition Company * Financial assets at fair value through profit or loss 1,315 2,113
Deposits — 1,910
Other liabilities — 45
KB No.29 Special Purpose Acquisition Company Financial assets at fair value through profit or loss 3,109 3,015
Deposits 2,352 2,338
Other liabilities 24 43
KB No.30 Special Purpose Acquisition Company Financial assets at fair value through profit or loss 2,852 2,835
Deposits 1,792 1,786
Other liabilities 7 20
KB No.31 Special Purpose Acquisition Company Financial assets at fair value through profit or loss 4,427 4,301
Deposits 2,272 2,352
Other liabilities 50 13
KB No.32 Special Purpose Acquisition Company Deposits 2,332 —
Other liabilities 23 —
KB No.33 Special Purpose Acquisition Company Financial assets at fair value through profit or loss 4,166 —
Deposits 2,849 —
Other liabilities 13 —
MitoImmune Therapeutics Financial assets at fair value through profit or loss — 1,574
KB-Solidus Global Healthcare Fund Other assets 855 —
Bioprotect Ltd. Financial assets at fair value through profit or loss 5,299 4,628
ASSEMBLE CORPORATION Financial assets at fair value through profit or loss 4,000 4,000
Loans measured at amortized cost (gross amount) 1,950 2,021
Allowances for credit losses 31 43
Other assets 7 11
Deposits 18 18
Other liabilities 1 1
Provisions — 1
Insurance liabilities 1 1
SO-MYUNG Recycling Co., Ltd. Insurance liabilities 1 1
Go2joy Co., Ltd. Financial assets at fair value through profit or loss 1,200 1,200

151

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

33.2 Details of significant outstanding balances of receivables and payables arising from transactions with related parties as of September 30, 2025 and December 31, 2024, are as follows: (cont’d)

(In millions of Korean won) September 30,<br>2025 December 31,<br>2024
S&E Bio Co., Ltd. Financial assets at fair value through profit or loss ~~W~~ 4,000 ~~W~~ 4,000
Loans measured at amortized cost (gross amount) 2,017 2,016
Other assets 3 3
Deposits 663 772
Other liabilities 3 3
Allowances for credit losses 15 15
Provisions 1 2
Bluepointpartners Inc. Financial assets at fair value through profit or loss 1,616 1,636
4N Inc. Deposits — 4
Xenohelix Co., Ltd. Financial assets at fair value through profit or loss 3,100 3,100
Loans measured at amortized cost (gross amount) 552 4
Allowances for credit losses 8 —
Other assets 1 —
Deposits 305 302
Contents First Inc. Financial assets at fair value through profit or loss 13,115 13,213
Loans measured at amortized cost (gross amount) 10,073 10,065
Allowances for credit losses 25 12
Other assets 2 3
Deposits 2 729
Other liabilities 4 4
KB-MDI Centauri Fund LP Financial assets at fair value through profit or loss 15,863 21,058
2020 KB Fintech Renaissance Fund Other assets 11 37
OKXE Inc. Financial assets at fair value through profit or loss 2,722 2,722
Newavel Co., Ltd. Loans measured at amortized cost (gross amount) — 20
Deposits 1 —
Pin Therapeutics Inc. Loans measured at amortized cost (gross amount) 17 29
Financial assets at fair value through profit or loss 7,000 7,000
Deposits 2,045 11,133
Other liabilities 8 117
Allowances for credit losses 2 3
Provisions 1 —
IMBiologics Corp. Loans measured at amortized cost (gross amount) 1 2
Financial assets at fair value through profit or loss 6,986 7,000
Provisions 1 —

152

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

33.2 Details of significant outstanding balances of receivables and payables arising from transactions with related parties as of September 30, 2025 and December 31, 2024, are as follows: (cont’d)

(In millions of Korean won) September 30,<br>2025 December 31,<br>2024
SuperNGine Co., Ltd. Loans measured at amortized cost (gross amount) ~~W~~ 252 ~~W~~ 482
Deposits 76 217
Allowances for credit losses 21 39
Other assets 1 1
Financial assets at fair value through profit or loss 1,996 1,996
Desilo Inc. Financial assets at fair value through profit or loss 3,168 3,168
Loans measured at amortized cost (gross amount) 300 300
Allowances for credit losses 5 5
Deposits 3 3
Turing Co., Ltd. Financial assets at fair value through profit or loss 3,000 3,000
Loans measured at amortized cost (gross amount) 900 900
Allowances for credit losses 6 6
Other assets 2 2
Deposits 64 819
Kukka Co., Ltd. * Financial assets at fair value through profit or loss — 2,490
Insurance liabilities — 1
ZIPDOC Inc. * Deposits — 1
TeamSparta Inc. * Loans measured at amortized cost (gross amount) — 5
Financial assets at fair value through profit or loss — 4,001
Provisions — 1
Deposits — 18,635
Other liabilities — 34
Chabot Mobility Co., Ltd. * Financial assets at fair value through profit or loss — 2,580
Deposits — 631
Wemade Connect Co., Ltd. Financial assets at fair value through profit or loss 8,959 7,466
Loans measured at amortized cost (gross amount) 55 29
Allowances for credit losses 17 9
Provisions 2 14
Deposits 3,445 5,465
Insurance liabilities — 4
Other liabilities 21 38
Nextrade Co., Ltd. Loans measured at amortized cost (gross amount) 56 —
Deposits 15,972 15,281
Other liabilities 2,144 1,579

153

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

33.2 Details of significant outstanding balances of receivables and payables arising from transactions with related parties as of September 30, 2025 and December 31, 2024, are as follows: (cont’d)

(In millions of Korean won) September 30,<br>2025 December 31,<br>2024
TMAP Mobility Co., Ltd. Loans measured at amortized cost (gross amount) ~~W~~ 72 ~~W~~ 73
Allowances for credit losses 1 1
Deposits 1 100,010
Insurance liabilities — 235
Other liabilities 13 548
Provisions 5 5
FutureConnect Co., Ltd. * Financial assets at fair value through profit or loss — 1,499
Grinergy Co., Ltd. Loans measured at amortized cost (gross amount) 2 1
Financial assets at fair value through profit or loss 7,961 —
Provisions — 2
Allowances for credit losses 1 —
NexThera Co., Ltd. Financial assets at fair value through profit or loss 3,000 3,000
FineKB Private Equity Fund No.1 Other assets 110 144
Deposits 1,000 —
Other liabilities 1 —
Paramark KB Fund No.1 Other liabilities 13 45
KB-Badgers Future Mobility ESG Fund No.1 Other liabilities 312 —
KB Social Impact Investment Fund Other assets 150 250
Checkmate Therapeutics Inc. Financial assets at fair value through profit or loss 3,200 3,200
Insurance liabilities 2 3
Hibiscus Fund LP Financial assets at fair value through profit or loss 15,492 14,717
Other assets 222 210
RMG-KB BioAccess Fund L.P. Financial assets at fair value through profit or loss 12,625 9,379
Other assets 88 —
RMG-KB BP Management Ltd. Financial assets at fair value through profit or loss 438 344
KB Co-Investment Private Equity Fund No.1 Other assets 500 302
Spoonlabs Co., Ltd. * Financial assets at fair value through profit or loss — 15,006
Neuroptika Inc. Financial assets at fair value through profit or loss 5,879 5,879
Bitgoeul Cheomdan Green 1st Co., Ltd. Deposits 1,247 1,239

154

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

33.2 Details of significant outstanding balances of receivables and payables arising from transactions with related parties as of September 30, 2025 and December 31, 2024, are as follows: (cont’d)

(In millions of Korean won) September 30,<br>2025 December 31,<br>2024
Bigwave Robotics Corp. Loans measured at amortized cost (gross amount) ~~W~~ 86 ~~W~~ 39
Allowances for credit losses 10 —
Financial assets at fair value through profit or loss 4,118 2,750
Deposits 212 501
Other liabilities — 6
3D Interactive Co., Ltd. Loans measured at amortized cost (gross amount) — 6
Provisions — 2
Financial assets at fair value through profit or loss 2,300 2,300
Deposits 90 1,779
XL8 INC. Financial assets at fair value through profit or loss 5,416 5,869
Elev8-Capital Fund I Financial assets at fair value through profit or loss 14,450 16,250
New Daegu Busan Expressway Co., Ltd. Loans measured at amortized cost (gross amount) 9 24,264
Allowances for credit losses 3 4
Other assets — 22
Provisions 1 —
Deposits 84,201 150,007
Other liabilities 51 1,928
Insurance liabilities 128 22
AIM FUTURE, Inc. Financial assets at fair value through profit or loss 2,000 2,000
Loans measured at amortized cost (gross amount) 909 908
Allowances for credit losses 5 5
Other assets 1 1
Deposits 381 760
Novorex Inc. Financial assets at fair value through profit or loss 4,000 2,000
Loans measured at amortized cost (gross amount) 19 8
Allowances for credit losses 6 —
Provisions 2 —
Deposits 246 6
Seokwang T&I Co., Ltd Insurance liabilities 1 2
ADP Holdings Co., Ltd. Deposits 2,058 2,058
Other liabilities 5 7

155

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

33.2 Details of significant outstanding balances of receivables and payables arising from transactions with related parties as of September 30, 2025 and December 31, 2024, are as follows: (cont’d)

(In millions of Korean won) September 30,<br>2025 December 31,<br>2024
ADPGREEN Loans measured at amortized cost (gross amount) ~~W~~ 33 ~~W~~ 25
Deposits 4,695 1,802
Other liabilities 41 8
Allowances for credit losses 4 8
Provisions — 3
Insurance liabilities 134 101
Logpresso Inc. Financial assets at fair value through profit or loss 3,000 3,000
Loans measured at amortized cost (gross amount) 38 31
Deposits 74 457
Onheal Co., Ltd. Financial assets at fair value through profit or loss 10,000 10,000
Deposits 1 5,001
Ascent Global Fund III LP Financial assets at fair value through profit or loss 3,476 3,767
DYNE MEDICAL GROUP Inc. Financial assets at fair value through profit or loss 3,001 3,001
Loans measured at amortized cost (gross amount) 2,040 2,022
Allowances for credit losses 17 16
Provisions 5 6
Other assets 1 1
Deposits 311 3,813
Other liabilities 6 23
Insurance liabilities 2 1
TriOar Inc. Financial assets at fair value through profit or loss 5,000 3,000
Loans measured at amortized cost (gross amount) 20 16
Deposits 5,811 6,054
Other liabilities 41 73
Coxwave Co., Ltd. Financial assets at fair value through profit or loss 3,000 3,000
SDT Inc. Financial assets at fair value through profit or loss 3,839 3,105
Yeoulhyulgangho Financial assets at fair value through profit or loss 500 500
Deposits 906 456
Other liabilities 3 —
KB-VEP Contact Fund Other assets 15 15
Xpanner Inc. Financial assets at fair value through profit or loss 9,793 9,673
Insurance liabilities 3 1

156

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

33.2 Details of significant outstanding balances of receivables and payables arising from transactions with related parties as of September 30, 2025 and December 31, 2024, are as follows: (cont’d)

(In millions of Korean won) September 30,<br>2025 December 31,<br>2024
SD Speed Co.,Ltd. Insurance liabilities ~~W~~ 1 ~~W~~ 1
Allra Fintech Corp. Loans measured at amortized cost (gross amount) 15 —
Allowances for credit losses 2 —
Deposits 383 1,671
Other liabilities — 1
Provisions 2 2
GCSM Holdings Limited Financial assets at fair value through profit or loss 9,231 9,506
KB Rejuvenation Fund Other assets 38 3
Qoala * Financial assets at fair value through profit or loss — 6,554
FineKB Private Equity Fund No.2 Other assets 70 35
Koru Pharma Co., Ltd. Financial assets at fair value through profit or loss 7,890 —
Deposits 109 —
Insurance liabilities 8 —
Aldaver Financial assets at fair value through profit or loss 2,000 —
Deposits 817 —
Other liabilities 4 —
ANTIGRAVITY Financial assets at fair value through profit or loss 900 —
Loans measured at amortized cost (gross amount) 43 —
Allowances for credit losses 1 —
Deposits 126 —
HyperAccel Co., Ltd. Financial assets at fair value through profit or loss 8,500 —
enParticle Co., Ltd Financial assets at fair value through profit or loss 2,000 —
Deposits 2,109 —
Other liabilities 1 —
ALL ROUND DOCTORS Inc. Financial assets at fair value through profit or loss 2,000 —
Emocog Inc. Financial assets at fair value through profit or loss 4,000 —
Deposits 3,138 —
GAME TALES Financial assets at fair value through profit or loss 3,000 —
Streami Inc. Financial assets at fair value through profit or loss 2,754 —

157

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

33.2 Details of significant outstanding balances of receivables and payables arising from transactions with related parties as of September 30, 2025 and December 31, 2024, are as follows: (cont’d)

(In millions of Korean won) September 30,<br>2025 December 31,<br>2024
Lemontree Inc. Financial assets at fair value through profit or loss ~~W~~ 999 ~~W~~ —
Deposits 449 —
Provisions 2 —
WhaTap Laps Inc. Financial assets at fair value through profit or loss 6,370 —
Deposits 2,939 —
Other liabilities 55 —
Semicolon Susong REITs Co., Ltd. Loans measured at amortized cost (gross amount) 24,920 —
Allowances for credit losses 5 —
Other assets 173 —
Insurance liabilities 17 —
Aculys Pharma, Inc. Financial assets at fair value through profit or loss 13,564 —
ByL Financial assets at fair value through profit or loss 14,967 —
Deposits 5,000 —
eRoun & company Co., Ltd Deposits 800 —
K-1 23th yeoksam Real Estate Investment Trust company Itd Insurance liabilities 6 —
Key management personnel
Key management personnel Loans measured at amortized cost (gross amount) 8,384 7,125
Allowances for credit losses 17 3
Other assets 7 8
Deposits 13,445 15,365
Provisions 1 1
Insurance liabilities 2,903 2,308
Other liabilities 396 555
Others
Retirement pension Other assets 1,093 739
Other liabilities 779 1,215
* Excluded from the Group’s related party as at September 30, 2025, therefore, the remaining<br>outstanding balances with those entities are not disclosed.
--- ---

158

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

33.3 Details of significant lending transactions with related parties for the nine-month periods ended September 30, 2025 and 2024, are as follows:

(In millions of Korean won) 2025
Beginning Loan Collection Ending
Associates and joint ventures
Korea Credit Bureau Co., Ltd. ~~W~~ 36 ~~W~~ 39 ~~W~~ (36 ) ~~W~~ 39
Incheon Bridge Co., Ltd. 105,423 16 (7,962 ) 97,477
Star-Lord General Investors Private Real Estate Investment Company No.10 149,898 150,000 (150,375 ) 149,523
Food Factory Co., Ltd. 1,764 510 (280 ) 1,994
Big Dipper Co., Ltd. 43 30 (43 ) 30
RMGP Bio-Pharma Investment Fund, L.P. 7,205 — (4,409 ) 2,796
RMGP Bio-Pharma Investment, L.P. 25 — (4 ) 21
Wyatt Corp. * 3,000 — (3,000 ) —
Banksalad Co., Ltd. 2,059 442 — 2,501
UPRISE, Inc. 1,817 9 — 1,826
Stratio, Inc. 1,000 — — 1,000
HonestAl Co., LTD. 442 — — 442
CellinCells Co., Ltd. * 2,001 2 (2,001 ) 2
KB No.21 Special Purpose Acquisition Company * 3,122 — (3,122 ) —
KB No.25 Special Purpose Acquisition Company 1,850 34 — 1,884
KB No.26 Special Purpose Acquisition Company * 2,150 — (2,150 ) —
KB No.27 Special Purpose Acquisition Company 5,877 295 — 6,172
KB No.28 Special Purpose Acquisition Company * 2,113 — (798 ) 1,315
KB No.29 Special Purpose Acquisition Company 3,015 94 — 3,109
KB No.30 Special Purpose Acquisition Company 2,835 17 — 2,852
KB No.31 Special Purpose Acquisition Company 4,301 126 — 4,427
KB No.33 Special Purpose Acquisition Company — 4,166 — 4,166
Channel Corporation 20,141 — (5,841 ) 14,300
MitoImmune Therapeutics 1,574 — (1,574 ) —
Bioprotect Ltd. 4,628 671 — 5,299
ASSEMBLE CORPORATION 6,021 — (71 ) 5,950
Go2joy Co., Ltd. 1,200 — — 1,200
S&E Bio Co., Ltd. 6,016 17 (16 ) 6,017
Bluepointpartners Inc. 1,636 — (20 ) 1,616
Xenohelix Co., Ltd. 3,104 552 (4 ) 3,652
Contents First Inc. 23,278 73 (163 ) 23,188
KB-MDI Centauri Fund LP 21,058 — (5,195 ) 15,863
OKXE Inc. 2,722 — — 2,722

159

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

33.3 Details of significant lending transactions with related parties for the nine-month periods ended September 30, 2025 and 2024, are as follows: (cont’d)

(In millions of Korean won) 2025
Beginning Loan Collection Ending
Checkmate Therapeutics Inc. ~~W~~ 3,200 ~~W~~ — ~~W~~ — ~~W~~ 3,200
Newavel Co., Ltd. 20 — (20 ) —
IMBiologics Corp. 7,002 1 (16 ) 6,987
Spark Biopharma Inc. 4,649 114 (15 ) 4,748
Pin Therapeutics Inc. 7,029 17 (29 ) 7,017
Hibiscus Fund LP 14,717 775 — 15,492
SuperNGine Co., Ltd. 2,478 2 (232 ) 2,248
Desilo Inc. 3,468 — — 3,468
RMG-KB BioAccess Fund L.P. 9,379 3,246 — 12,625
RMG-KB BP Management Ltd. 344 94 — 438
Turing Co., Ltd. 3,900 — — 3,900
Kukka Co., Ltd. * 2,490 — (2,490 ) —
Grinergy Co., Ltd. 1 7,963 — 7,964
NexThera Co., Ltd. 3,000 — — 3,000
Chabot Mobility Co., Ltd. * 2,580 — (2,580 ) —
TeamSparta Inc. * 4,006 — (4,006 ) —
FutureConnect Co., Ltd. * 1,499 — (1,499 ) —
Wemade Connect Co., Ltd. 7,495 1,548 (29 ) 9,014
TMAP Mobility Co., Ltd. 73 72 (73 ) 72
Spoonlabs Co., Ltd. * 15,006 — (15,006 ) —
Neuroptika Inc. 5,879 — — 5,879
Bigwave Robotics Corp. 2,789 1,454 (39 ) 4,204
3D Interactive Co., Ltd. 2,306 — (6 ) 2,300
XL8 INC. 5,869 1 (454 ) 5,416
Elev8-Capital Fund I 16,250 — (1,800 ) 14,450
AIM FUTURE, Inc. 2,908 9 (8 ) 2,909
New Daegu Busan Expressway Co., Ltd. 24,264 12 (24,267 ) 9
Novorex Inc. 2,008 2,019 (8 ) 4,019
Logpresso Inc. 3,031 38 (31 ) 3,038
Onheal Co., Ltd. 10,000 — — 10,000
Ascent Global Fund III LP 3,767 — (291 ) 3,476
DYNE MEDICAL GROUP Inc. 5,023 40 (22 ) 5,041
TriOar Inc. 3,016 2,020 (16 ) 5,020
Coxwave Co., Ltd. 3,000 — — 3,000
SDT Inc. 3,105 734 — 3,839
Yeoulhyulgangho 500 — — 500
ADPGREEN 25 33 (25 ) 33
Xpanner Inc. 9,673 120 — 9,793
GCSM Holdings Limited 9,506 — (275 ) 9,231
Qoala * 6,554 — (6,554 ) —
Allra Fintech Corp. — 15 (1 ) 14
Koru Pharma Co., Ltd. — 7,890 — 7,890
ANTIGRAVITY — 946 (3 ) 943
Semicolon Susong REITs Co., Ltd. — 25,000 (80 ) 24,920

160

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

33.3 Details of significant lending transactions with related parties for the nine-month periods ended September 30, 2025 and 2024, are as follows: (cont’d)

(In millions of Korean won) 2025
Beginning Loan Collection Ending
WhaTap Laps Inc. ~~W~~ — ~~W~~ 6,370 ~~W~~ — ~~W~~ 6,370
Lemontree Inc. — 999 — 999
GAME TALES — 3,000 — 3,000
Streami Inc. — 2,754 — 2,754
HyperAccel Co., Ltd. — 8,500 — 8,500
Aldaver — 2,000 — 2,000
enParticle Co., Ltd — 2,000 — 2,000
ALL ROUND DOCTORS Inc. — 2,000 — 2,000
Emocog Inc. — 4,000 — 4,000
Aculys Pharma, Inc. — 13,564 — 13,564
ByL — 14,967 — 14,967
Nextrade Co., Ltd. — 56 — 56
Key management personnel 7,125 5,461 (4,202 ) 8,384

161

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

33.3 Details of significant lending transactions with related parties for the nine-month periods ended September 30, 2025 and 2024, are as follows: (cont’d)

(In millions of Korean won) 2024
Beginning Loan Collection Ending
Associates and joint ventures
Korea Credit Bureau Co., Ltd. ~~W~~ 37 ~~W~~ 35 ~~W~~ (37 ) ~~W~~ 35
Incheon Bridge Co., Ltd. 113,794 15 (6,606) 107,203
Star-Lord General Investors Private Real Estate Investment Company No.10 149,590 229 — 149,819
KB Cape No.1 Private Equity Fund 1,935 — (1,935 ) —
RAND Bio Science Co., Ltd. * 1 — (1 ) —
Food Factory Co., Ltd. 2,875 7 (1,063 ) 1,819
Big Dipper Co., Ltd. 14 30 (14 ) 30
RMGP Bio-Pharma Investment Fund, L.P. 5,938 1,198 — 7,136
RMGP Bio-Pharma Investment, L.P. 20 3 — 23
Wyatt Corp. * 6,000 — (3,000 ) 3,000
Banksalad Co., Ltd. 9,148 — (7,017 ) 2,131
UPRISE, Inc. 5,710 — (4,056 ) 1,654
Stratio, Inc. 1,000 — — 1,000
HonestAl Co., LTD. 3,999 — — 3,999
CellinCells Co., Ltd. * 2,003 2 (3 ) 2,002
KB No.21 Special Purpose Acquisition Company * 2,987 281 — 3,268
KB No.22 Special Purpose Acquisition Company * 2,985 — (2,985 ) —
KB No.25 Special Purpose Acquisition Company 2,025 359 — 2,384
KB No.26 Special Purpose Acquisition Company * 2,204 — (31 ) 2,173
KB No.27 Special Purpose Acquisition Company 6,054 — (17 ) 6,037
KB No.28 Special Purpose Acquisition Company * — 2,146 — 2,146
KB No.29 Special Purpose Acquisition Company — 3,098 — 3,098
KB No.30 Special Purpose Acquisition Company — 2,901 — 2,901
KB No.31 Special Purpose Acquisition Company — 2,190 — 2,190
COSES GT Co., Ltd. * 1 — (1 ) —
Channel Corporation 16,906 2,266 — 19,172
MitoImmune Therapeutics 7,000 — — 7,000
Bioprotect Ltd. 4,474 511 — 4,985
ASSEMBLE CORPORATION 6,155 3 (155 ) 6,003
Go2joy Co., Ltd. 1,200 — — 1,200
S&E Bio Co., Ltd. 4,013 2,011 (13 ) 6,011
Bluepointpartners Inc. 1,874 29 — 1,903
Xenohelix Co., Ltd. 3,100 — — 3,100

162

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

33.3 Details of significant lending transactions with related parties for the nine-month periods ended September 30, 2024 and 2023, are as follows: (cont’d)

(In millions of Korean won) 2024
Beginning Loan Collection Ending
Contents First Inc. ~~W~~ 17,642 ~~W~~ 1,066 ~~W~~ (1,365 ) ~~W~~ 17,343
KB-MDI Centauri Fund LP 18,993 470 — 19,463
OKXE Inc. 800 1,412 — 2,212
Checkmate Therapeutics Inc. 3,200 — — 3,200
Newavel Co., Ltd. 3,013 10 (13 ) 3,010
IMBiologics Corp. 7,005 2 (5 ) 7,002
Spark Biopharma Inc. 7,467 10 (17 ) 7,460
Pin Therapeutics Inc. 5,011 2,034 (11 ) 7,034
Hibiscus Fund LP 12,915 861 — 13,776
SuperNGine Co., Ltd. 2,599 3 (123 ) 2,479
Desilo Inc. 3,468 — — 3,468
RMG-KB BioAccess Fund L.P. 5,036 2,961 — 7,997
RMG-KB BP Management Ltd. 174 115 — 289
IGGYMOB Co., Ltd. 5,007 2 (7 ) 5,002
Turing Co., Ltd. 4,901 — (1,001 ) 3,900
Kukka Co., Ltd. * 2,490 — — 2,490
ZIPDOC Inc. * 2,000 — (1,209 ) 791
Gushcloud Talent Agency 3,688 — (3,688 ) —
Grinergy Co., Ltd. 6,486 299 — 6,785
NexThera Co., Ltd. 3,000 — — 3,000
Chabot Mobility Co., Ltd. * 2,000 417 — 2,417
TeamSparta Inc. * 4,308 384 (307 ) 4,385
FutureConnect Co., Ltd. * 1,499 — — 1,499
Wemade Connect Co., Ltd. 12,337 66 (4,607 ) 7,796
TMAP Mobility Co., Ltd. 106 57 (106 ) 57
Spoonlabs Co., Ltd. * 19,506 — (4,906 ) 14,600
Neuroptika Inc. 5,879 — — 5,879
Bigwave Robotics Corp. 2,781 37 (31 ) 2,787
Blinkers Inc. * 999 — (999 ) —
3D Interactive Co., Ltd. 2,342 3 (42 ) 2,303
XL8 INC. 5,148 399 — 5,547
Elev8-Capital Fund I 6,656 7,435 — 14,091
AIM FUTURE, Inc. 2,900 8 — 2,908
New Daegu Busan Expressway Co., Ltd. 72,742 17 (36,379 ) 36,380
Novorex Inc. 2,000 22 — 2,022
Logpresso Inc. — 3,026 — 3,026
Onheal Co., Ltd. — 10,000 — 10,000
Ascent Global Fund III LP — 3,560 — 3,560
DYNE MEDICAL GROUP Inc. — 5,045 — 5,045
TriOar Inc. — 3,007 — 3,007
Coxwave Co., Ltd. — 3,000 — 3,000
SDT Inc. — 2,561 — 2,561
Yeoulhyulgangho — 500 — 500
ADPGREEN — 26 — 26
Xpanner Inc. — 9,673 — 9,673
Key management personnel 5,490 5,901 (3,721 ) 7,670
* Excluded from the Group’s related party as at September 30, 2025.
--- ---

163

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

33.4 Details of significant borrowing transactions with related parties for nine-month periods ended September 30, 2025 and 2024, are as follows:

(In millions of Korean won) 2025
Beginning Borrowing Repayment Others ^1^ Ending
Associates and joint ventures
Korea Credit Bureau Co., Ltd. ~~W~~ 40,570 ~~W~~ 1,000 ~~W~~ — ~~W~~ (32,637 ) ~~W~~ 8,933
Incheon Bridge Co., Ltd. 43,867 66,100 (39,500 ) (7,009 ) 63,458
Jungdo Co., Ltd. 4 — — — 4
Iwon Alloy Co., Ltd. 2 — — (2 ) —
Skydigital Inc. 30 — — (20 ) 10
Aju Good Technology Venture Fund 1,809 — — (1,770 ) 39
KB-KDBC Pre-IPO New Technology Business Investment Fund 39 — — 211 250
WJ Private Equity Fund No.1 46 — — (8 ) 38
KB No.21 Special Purpose Acquisition Company^2^ 2,247 — (2,115 ) (132 ) —
KB No.25 Special Purpose Acquisition Company 1,545 1,500 (1,545 ) 93 1,593
KB No.26 Special Purpose Acquisition Company^2^ 1,763 — (110 ) (1,653 ) —
KB No.27 Special Purpose Acquisition Company 4,613 4,600 (4,532 ) (1 ) 4,680
KB No.28 Special Purpose Acquisition Company^2^ 1,910 — — (1,910 ) —
KB No.29 Special Purpose Acquisition Company 2,338 2,148 (2,100 ) (34 ) 2,352
KB No.30 Special Purpose Acquisition Company 1,786 1,535 (1,500 ) (29 ) 1,792
KB No.31 Special Purpose Acquisition Company 2,352 — — (80 ) 2,272
KB No.32 Special Purpose Acquisition Company — 2,000 — 332 2,332
KB No.33 Special Purpose Acquisition Company — 2,400 — 449 2,849
RAND Bio Science Co., Ltd.^2^ 4 — — (4 ) —
Food Factory Co., Ltd. 907 — — (56 ) 851
Big Dipper Co., Ltd. 123 — — (79 ) 44
Wyatt Corp.^2^ 1 — — (1 ) —
CellinCells Co., Ltd.^2^ 13 — — (13 ) —
ASSEMBLE CORPORATION 18 — — — 18
S&E Bio Co., Ltd. 772 1,180 (730 ) (559 ) 663
4N Inc. 4 — — (4 ) —
Contents First Inc. 729 — — (727 ) 2
Newavel Co., Ltd. — — — 1 1
Pin Therapeutics Inc. 11,133 2,000 (10,000 ) (1,088 ) 2,045
Spark Biopharma Inc. 4,759 7,600 (10,449 ) (353 ) 1,557
SuperNGine Co., Ltd. 217 — — (141 ) 76

164

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

33.4 Details of significant borrowing transactions with related parties for the nine-month periods ended September 30, 2025 and 2024, are as follows: (cont’d)

(In millions of Korean won) 2025
Beginning Borrowing Repayment Others ^1^ Ending
Desilo Inc. ~~W~~ 3 ~~W~~ — ~~W~~ — ~~W~~ — ~~W~~ 3
Turing Co., Ltd. 819 — — (755 ) 64
TMAP Mobility Co., Ltd. 100,010 244,626 (345,241 ) 606 1
Nextrade Co., Ltd. 15,281 — — 691 15,972
ZIPDOC Inc.^2^ 1 — — (1 ) —
TeamSparta Inc.^2^ 18,635 — — (18,635 ) —
Chabot Mobility Co., Ltd.^2^ 631 — — (631 ) —
Wemade Connect Co., Ltd. 5,465 7,051 (9,000 ) (71 ) 3,445
Channel Corporation 6 — — (6 ) —
Bitgoeul Cheomdan Green 1st Co., Ltd. 1,239 — — 8 1,247
Bigwave Robotics Corp. 501 — (501 ) 212 212
3D Interactive Co., Ltd. 1,779 — — (1,689 ) 90
AIM FUTURE, Inc. 760 — — (379 ) 381
New Daegu Busan Expressway Co., Ltd. 150,007 61,000 (130,500 ) 3,694 84,201
Novorex Inc. 6 — — 240 246
Xenohelix Co., Ltd. 302 — — 3 305
ADP Holdings Co., Ltd. 2,058 10,236 (10,235 ) (1 ) 2,058
ADPGREEN 1,802 7,800 (4,950 ) 43 4,695
Logpresso Inc. 457 874 (974 ) (283 ) 74
DYNE MEDICAL GROUP Inc. 3,813 3,300 (5,800 ) (1,002 ) 311
Onheal Co., Ltd. 5,001 — — (5,000 ) 1
TriOar Inc. 6,054 4,000 (5,000 ) 757 5,811
Yeoulhyulgangho 456 1,360 (860 ) (50 ) 906
Allra Fintech Corp. 1,671 2,000 (3,000 ) (288 ) 383
Koru Pharma Co., Ltd. — 200 (100 ) 9 109
Emocog Inc. — 3,000 (3,000 ) 3,138 3,138
WhaTap Laps Inc. — — — 2,939 2,939
Aldaver — 817 (815 ) 815 817
Lemontree Inc. — — — 449 449
enParticle Co., Ltd — — — 2,109 2,109
ANTIGRAVITY — — — 126 126
ByL — — — 5,000 5,000
eRoun & company Co., Ltd — — — 800 800
FineKB Private Equity Fund No.1 — 1,000 — — 1,000
Key management personnel 15,365 22,146 (22,758 ) (1,308 ) 13,445

165

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

33.4 Details of significant borrowing transactions with related parties for the nine-month periods ended September 30, 2025 and 2024, are as follows: (cont’d)

(In millions of Korean won) 2024
Beginning Borrowing Repayment Others ^1^ Ending
Associates and joint ventures
Korea Credit Bureau Co., Ltd. ~~W~~ 17,003 ~~W~~ — ~~W~~ — ~~W~~ (14,245 ) ~~W~~ 2,758
Incheon Bridge Co., Ltd. 40,992 72,000 (60,800 ) (4,194 ) 47,998
Jungdo Co., Ltd. 4 — — — 4
Dae-A Leisure Co., Ltd. 150 — — (150 ) —
Iwon Alloy Co., Ltd. 1 — — 2 3
Computerlife Co., Ltd. — — — 4 4
Skydigital Inc. 65 — — (56 ) 9
Aju Good Technology Venture Fund 1,202 — — (754 ) 448
KB-KDBC Pre-IPO New Technology Business Investment Fund 46 — — 512 558
KB-Brain KOSDAQ Scale-up New Technology Business Investment Fund^2^ — — — 1 1
WJ Private Equity Fund No.1 103 — — (55 ) 48
KB No.21 Special Purpose Acquisition Company^2^ 2,261 2,115 (2,050 ) (61 ) 2,265
KB No.22 Special Purpose Acquisition Company^2^ 1,848 — — (1,848 ) —
KB No.25 Special Purpose Acquisition Company 1,586 1,545 (1,500 ) (83 ) 1,548
KB No.26 Special Purpose Acquisition Company^2^ 1,761 1,724 (1,670 ) (50 ) 1,765
KB No.27 Special Purpose Acquisition Company 4,497 4,532 (4,390 ) (26 ) 4,613
KB No.28 Special Purpose Acquisition Company^2^ — 1,890 — 63 1,953
KB No.29 Special Purpose Acquisition Company — 2,100 — 246 2,346
KB No.30 Special Purpose Acquisition Company — 1,500 — 294 1,794
KB No.31 Special Purpose Acquisition Company — 2,000 — — 2,000
RAND Bio Science Co., Ltd.^2^ 4 — — (3 ) 1
Food Factory Co., Ltd. 629 — — 374 1,003
Big Dipper Co., Ltd. 40 — — 5 45
Wyatt Corp.^2^ 1 — — — 1
CellinCells Co., Ltd.^2^ 37 — — 24 61
COSES GT Co., Ltd.^2^ 1 — — (1 ) —
ASSEMBLE CORPORATION 78 — — (78 ) —
S&E Bio Co., Ltd. 2,342 990 (500 ) (757 ) 2,075
4N Inc. 49 — — (49 ) —

166

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

33.4 Details of significant borrowing transactions with related parties for the nine-month periods ended September 30, 2025 and 2024, are as follows: (cont’d)

(In millions of Korean won) 2024
Beginning Borrowing Repayment Others ^1^ Ending
Contents First Inc. ~~W~~ 1,072 ~~W~~ — ~~W~~ — ~~W~~ (250 ) ~~W~~ 822
Newavel Co., Ltd. 46 — — (30 ) 16
Pin Therapeutics Inc. 265 14,000 — (56 ) 14,209
Spark Biopharma Inc. 11,419 26,308 (34,156 ) 3,079 6,650
SuperNGine Co., Ltd. 69 — — 33 102
Desilo Inc. 3 — — 1 4
Turing Co., Ltd. 1,726 1,000 (1,700 ) 394 1,420
IGGYMOB Co., Ltd. — — — 18 18
TMAP Mobility Co., Ltd. 80,016 260,000 (240,000 ) (7 ) 100,009
KY Global Cell & Gene Private Equity Fund 2nd^2^ 3,790 2,910 (308 ) (6,392 ) —
Nextrade Co., Ltd. 56,203 6,000 (17,200 ) 49 45,052
Kukka Co., Ltd.^2^ — — — 4 4
ZIPDOC Inc.^2^ 181 — — (151 ) 30
TeamSparta Inc.^2^ 7,672 3,000 (4,000 ) 9,089 15,761
Chabot Mobility Co., Ltd.^2^ 164 — — 125 289
Wemade Connect Co., Ltd. 8,843 19,942 (23,500 ) 58 5,343
Channel Corporation 2,030 — (2,000 ) (25 ) 5
Bitgoeul Cheomdan Green 1st Co., Ltd. 833 — — 512 1,345
KB-FT Green Growth 1st Technology Investment Association 700 — (700 ) — —
Bigwave Robotics Corp. 4 501 — (4 ) 501
3D Interactive Co., Ltd. 1,501 — — (691 ) 810
AIM FUTURE, Inc. 3,393 1,000 (4,000 ) 1,215 1,608
New Daegu Busan Expressway Co., Ltd. 146,169 104,500 (93,932 ) (8,382 ) 148,355
Novorex Inc. 7 — — (1 ) 6
Xenohelix Co., Ltd. 904 — — (879 ) 25
ADP Holdings Co., Ltd. — 4,037 (2,003 ) — 2,034
ADPGREEN — 9,401 (7,801 ) 243 1,843
Logpresso Inc. — 100 (200 ) 930 830
DYNE MEDICAL GROUP Inc. — 2,650 (5,300 ) 8,163 5,513
TriOar Inc. — 3,500 (6,000 ) 9,617 7,117
Yeoulhyulgangho — — — 640 640
SDT Inc. — — (1,000 ) 1,000 —
Allra Fintech Corp. — 8,000 (8,000 ) 8,739 8,739
Key management personnel 15,902 18,698 (13,778 ) (4,635 ) 16,187
^1^ Transactions between related parties, such as settlements arising from operating activities and deposits, are<br>expressed in net amount.
--- ---
^2^ Excluded from the Group’s related party as at September 30, 2025.
--- ---

167

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

33.5 Details of significant investment and withdrawal transactions with related parties for the nine-month periods ended September 30, 2025 and 2024, are as follows:

(In millions of Korean won) 2025 2024
Equityinvestmentand others Withdrawaland others Equityinvestmentand others Withdrawaland others
Balhae Infrastructure Company ~~W~~ — ~~W~~ 9,321 ~~W~~ — ~~W~~ 6,350
POSCO-KB Shipbuilding Fund — 250 — —
KB-KDBC Pre-IPO New Technology Business Investment Fund — 2,800 — —
KB-SJ Tourism Venture Fund — 190 — 4,030
Korea Credit Bureau Co., Ltd. — 90 — 90
KB-UTC Inno-Tech Venture Fund — 3,786 — 338
KB-Solidus Global Healthcare Fund 5,300 — — 700
KB-Stonebridge Secondary Private Equity Fund — 4,956 — 697
KB SPROTT Renewable Private Equity Fund No.1 — 8,309 — 6,331
KB-NAU Special Situation Corporate Restructuring Private Equity Fund 3,634 3,918 2,184 4,779
2020 KB Fintech Renaissance Fund — 165 — —
KB Material and Parts No.1 PEF * — — — 3,400
KB-TS Technology Venture Private Equity Fund 45 — — 2,464
KB-Brain KOSDAQ Scale-up New Technology Business Investment Fund * — — — 2,825
Aju Good Technology Venture Fund — 780 — 2,120
G payment Joint Stock Company — 330 — 247
KB-KTB Technology Venture Fund — 233 5,600 —
KB-SOLIDUS Healthcare Investment Fund 3,138 — — —
Paramark KB Fund No.1 4,890 — 4,125 —
FineKB Private Equity Fund No.1 — 6,625 6,790 1,500
FineKB Private Equity Fund No.2 — — 500 250
KB No.21 Special Purpose Acquisition Company * — 10 — —
KB No.22 Special Purpose Acquisition Company * — — — 10
KB No.26 Special Purpose Acquisition Company * — 5 — —
KB No.29 Special Purpose Acquisition Company — — 10 —
KB No.30 Special Purpose Acquisition Company — — 10 —
KB No.31 Special Purpose Acquisition Company — — 10 —
KB No.32 Special Purpose Acquisition Company 10 — — —
KB-BridgePole Venture Investment Fund * — — — 136
JS Private Equity Fund No.3 — — — 755
Star-Lord General Investors Private Real Estate Investment Company No.10 — — — (358 )
KB Co-Investment Private Equity Fund No.1 3,980 698 9,131 3,173
POSITIVE Sobujang Venture Fund No.1 * — 879 — 400
History 2022 Fintech Fund * — 2,000 — —
KB-NP Green ESG New Technology Venture Capital Fund 9,450 — 15,450 —
KB-Badgers Future Mobility ESG Fund No.1 1,350 205 9,954 —
Lakewood-AVES Fund No.1 * — — — 2,000

168

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

33.5 Details of significant investment and withdrawal transactions with related parties for the nine-month periods ended September 30, 2025 and 2024, are as follows (cont’d):

(In millions of Korean won) 2025 2024
Equityinvestmentand others Withdrawaland others Equityinvestmentand others Withdrawaland others
Bitgoeul Cheomdan Green 1st Co., Ltd. ~~W~~ — ~~W~~ — ~~W~~ 152 ~~W~~ —
KB-SUSUNG 1st Investment Fund — 855 — 679
KB-SUSUNG 2nd Investment Fund — — 2,000 —
Friend 55 New Technology Business Investment Fund * — — — 1,200
DSIP-Pharos Bioenergy Fund * — — — 1,600
Shinhan-Eco Venture Fund 2nd 25 98 225 —
2023 JB Newtech No.2 Fund * — 1,406 — —
U-KB Credit No.1S Private Equity — 371 68 —
KB No.28 Special Purpose Acquisition Company * — 5 5 —
Timefolio Athleisure Investment Fund — — 4,000 —
COMPA Global Scale-Up Fund No.3 — — 1,000 —
AKK Robotech Valueup New Technology Investment Fund * — 1,000 1,000 —
YG MCE PROJECT NO.1 Fund — 1,500 1,500 —
THE CHAEUL FUND NO.1 * — 1,000 — —
IMM global Secondary 1-1 Equity Private Fund 756 162 2,499 —
Elohim-Bilanx aerospace No.1 Fund — — 2,000 —
KB-CJ Venture Fund 1st — — 1,800 —
HI YG Win-win Fund No.2 — — 2,000 —
KB-VEP Contact Fund — — 395 47
Reboot Private Equity Fund — — 7,000 —
LIB Material Investment Fund — 3,221 4,098 —
NOVORSEC-SJG Consumer Secondary Fund * — 1,700 1,700 —
Allra Fintech Corp. 93 — 8,532 —
KB Global Commerce Private Equity Investment Fund * — — — 7,000
KB-SBI Global Strategic Capital Fund 7,672 — — —
KB-Cyrus Tourism Venture Fund 1,000 — — —
KB-IMM New Star Real Estate Private Fund I 17,808 2,033 — —
VIG Private Equity Fund V-3 1,632 319 — —
KOENTEC Co. Ltd. * — 107,428 — —
E&I Holdings * 27,300 27,300 — —
KB-LB Middle Market Enterprises Innovation Private Equity Fund 8,140 55 — —
YG Al Industrial Automation Solutions FUND 2,000 — — —
KB-Novus Genesis Private Equity Fund 2,300 — — —
KB No.33 Special Purpose Acquisition Company 10 — — —
Semicolon Susong REITs Co., Ltd. 88,258 857 — —
Smart Korea KB Future9-Sejong Venture Fund 2,000 7 — —
DAYLI Fountainhead Blind Private Equity Fund II 750 — — —
Meritz-Hyundai Investment Real Estate Strategy No.1 Private Equity Fund 86,176 — — —
K-1 23th yeoksam Real Estate Investment Trust company Itd — 15,000 — —
MM Korea Beauty Co-Invest Private Equity Fund 50,000 — — —

169

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

33.5 Details of significant investment and withdrawal transactions with related parties for the nine-month periods ended September 30, 2025 and 2024, are as follows (cont’d):

(In millions of Korean won) 2025 2024
Equityinvestmentand others Withdrawaland others Equityinvestmentand others Withdrawaland others
ATP TP VC Fund No.1 ~~W~~ 2,000 ~~W~~ — ~~W~~ — ~~W~~ —
AIM-KB-DOUBLE Connected Future Investment Fund 1,000 — — —
KB-SP Private Equity Fund IV * — 2,495 — —
KB-IMM New Star Real Estate Private Fund II 992 — — —
* Excluded from the Group’s related party as at September 30, 2025.
--- ---

170

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

33.6 Unused commitments provided to related parties as of September 30, 2025 and December 31, 2024, are as follows:

(In millions of Korean won or in a US Dollar or Malaysian ringgit or the Indonesian Rupiah) September 30,<br>2025 December 31,<br>2024
Associates and joint ventures
Balhae Infrastructure Company Purchase of securities ~~W~~ 6,154 ~~W~~ 6,154
Korea Credit Bureau Co., Ltd. Unused lines of credit for credit card 561 565
Incheon Bridge Co., Ltd. Loan commitments in Korean won 20,000 20,000
Unused lines of credit for credit card 84 88
TeamSparta Inc. * Loan commitments in Korean won — 1,000
Unused lines of credit for credit card — 696
3D Interactive Co., Ltd. Unused lines of credit for credit card 24 44
Food Factory Co., Ltd. Unused lines of credit for credit card 50 50
Lemontree Inc. Loan commitments in Korean won 450 —
CellinCells Co., Ltd. * Unused lines of credit for credit card — 11
RAND Bio Science Co., Ltd. * Unused lines of credit for credit card — 25
Big Dipper Co., Ltd. Unused lines of credit for credit card 14 12
ASSEMBLE CORPORATION Unused lines of credit for credit card 15 29
COSES GT Co., Ltd. * Unused lines of credit for credit card — 12
Spark Biopharma Inc. Unused lines of credit for credit card 40 35
Newavel Co., Ltd. Unused lines of credit for credit card — 10
IMBiologics Corp. Unused lines of credit for credit card 10 21
SuperNGine Co., Ltd. Unused lines of credit for credit card 38 38
IGGYMOB Co., Ltd. Unused lines of credit for credit card 0 50
Pin Therapeutics Inc. Unused lines of credit for credit card 33 21
Grinergy Co., Ltd. Unused lines of credit for credit card 4 9
S&E Bio Co., Ltd. Unused lines of credit for credit card 33 34
Wemade Connect Co., Ltd. Unused lines of credit for credit card 15 121
TMAP Mobility Co., Ltd. Unused lines of credit for credit card 744 744
Contents First Inc. Unused lines of credit for credit card 27 35
Allra Fintech Corp. Unused lines of credit for credit card 35 49
Bigwave Robotics Corp. Unused lines of credit for credit card 14 61
New Daegu Busan Expressway Co., Ltd. Unused lines of credit for credit card 9 4
AIM FUTURE, Inc. Unused lines of credit for credit card 34 35
Novorex Inc. Unused lines of credit for credit card 17 28
Xenohelix Co., Ltd. Unused lines of credit for credit card 8 6
ADPGREEN Unused lines of credit for credit card 16 25
Logpresso Inc. Unused lines of credit for credit card 22 29
DYNE MEDICAL GROUP Inc. Unused lines of credit for credit card 110 135
TriOar Inc. Unused lines of credit for credit card 30 34

171

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

33.6 Unused commitments provided to related parties as of September 30, 2025 and December 31, 2024, are as follows: (cont’d)

(In millions of Korean won or in a US Dollar or the Indonesian Rupiah) September 30,<br>2025 December 31,<br>2024
Nextrade Co., Ltd. Unused lines of credit for credit card ~~W~~ 44 ~~W~~ —
Aldaver Unused lines of credit for credit card 10 —
ANTIGRAVITY Unused lines of credit for credit card 3 —
KB-CJ Venture Fund 1st Purchase of securities 4,200 4,200
KB-Stonebridge Secondary Private Equity Fund Purchase of securities 173 173
KB-NAU Special Situation Corporate Restructuring Private Equity Fund Purchase of securities 924 4,524
All Together Korea Fund No.2 (Stock-FoFs) Purchase of securities 990,000 990,000
KB-SOLIDUS Healthcare Investment Fund Purchase of securities 20,884 23,569
KB Co-Investment Private Equity Fund No.1 Purchase of securities 506 4,393
KB-Badgers Future Mobility ESG Fund No.1 Purchase of securities 25,569 26,920
KB-NP Green ESG New Technology Venture Capital Fund Purchase of securities 1,050 9,750
FineKB Private Equity Fund No.1 Purchase of securities 2,335 2,335
KB-Solidus Global Healthcare Fund Commitments on loss absorption priority 4,500 4,500
Paramark KB Fund No.1 Purchase of securities 870 6,360
Smart Korea KB Future9-Sejong Venture Fund Purchase of securities — 2,000
Shinhan-Eco Venture Fund 2nd Purchase of securities 425 450
U-KB Credit No.1S Private Equity Purchase of securities 35,700 35,700
KB-Cyrus Tourism Venture Fund Purchase of securities 3,000 4,000
KB-SBI Global Strategic Capital Fund Purchase of securities 48,030 55,702
KB-IMM New Star Real Estate Private Fund I Purchase of securities 2,4633 42,442
VIG Private Equity Fund V-3 Purchase of securities 7,050 8,364

172

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

33.6 Unused commitments provided to related parties as of September 30, 2025 and December 31, 2024, are as follows: (cont’d)

(In millions of Korean won or in a US Dollar or the Indonesian Rupiah) September 30,<br>2025 December 31,<br>2024
IMM global Secondary 1-1 Equity Private Fund Purchase of securities ~~W~~ 10,600 ~~W~~ —
KB-LB Middle Market Enterprises Innovation Private Equity Fund Purchase of securities 18,074 —
DAYLI Fountainhead Blind Private Equity Fund II Purchase of securities 49,250 —
KB-IMM New Star Real Estate Private Fund II Purchase of securities 61,008 —
Meritz-Hyundai Investment Real Estate Strategy No.1 Private Equity Fund Purchase of securities 63,823 —
RMGP Bio-Pharma Investment Fund, L.P. Purchase of securities USD 2,693,142 USD 2,693,142
RMGP Bio-Pharma Investment, L.P. Purchase of securities USD 8,470 USD 8,470
RMG-KB BP Management Ltd. Purchase of securities USD 469,365 USD 556,617
RMG-KB BioAccess Fund L.P. Purchase of securities USD 17,803,849 USD 21,113,820
Elev8-Capital Fund I Purchase of securities IDR 1,787,096,277 IDR 1,787,096,277
Ascent Global Fund III LP Purchase of securities USD 22,437,479 USD 32,437,479
Key management personnel
Key management personnel Loan commitments in Korean won 1,994 3,011
* Excluded from the Group’s related party as at September 30, 2025.
--- ---

173

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

33.7 Details of compensation to key management personnel for the nine-month periods ended September 30, 2025 and 2024, are as follows:

(In millions of Korean won) 2025
Short-termemployeebenefits Post-employmentbenefits Share-basedpayments Total
Registered directors (executive) ~~W~~ 5,215 ~~W~~ 785 ~~W~~ 12,718 ~~W~~ 18,718
Registered directors (non-executive) 767 — — 767
Non-registered directors 10,772 462 20,820 32,054
~~W~~ 16,754 ~~W~~ 1,247 ~~W~~ 33,538 ~~W~~ 51,539
(In millions of Korean won) 2024
Short-termemployeebenefits Post-employmentbenefits Share-basedpayments Total
Registered directors (executive) ~~W~~ 5,227 ~~W~~ 750 ~~W~~ 10,784 ~~W~~ 16,761
Registered directors (non-executive) 799 — — 799
Non-registered directors 13,230 381 22,074 35,685
~~W~~ 19,256 ~~W~~ 1,131 ~~W~~ 32,858 ~~W~~ 53,245

174

KB Financial Group Inc. and Subsidiaries

Notes to the Consolidated Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

33.8 Details of collateral provided by related parties as of September 30, 2025 and December 31, 2024, are as follows:

(In millions of Korean won) Assets held<br><br><br>as collateral September 30,<br>2025 December 31,2024
Key management personnel Time deposits and others ~~W~~ 692 ~~W~~ 1,437
Real estate 7,895 8,092

As of September 30, 2025, Incheon Bridge Co., Ltd., a related party of the Group, provides fund management account, civil engineering works insurance, and management and operations rights as senior collateral amounting to ~~W~~ 611,000 million to the project financing group consisting of the Group and 5 other institutions, and as subordinated collateral amounting to ~~W~~ 384,800 million to subordinated debt holders consisting of the Group and 2 other institutions. Also, it provides certificate of credit guarantee amounting to ~~W~~ 400,000 million as collateral to the project financing group consisting of the Group and 5 other institutions.

34. Events After the ReportingPeriod

On October 30, 2025, the Board of Directors declared a quarterly dividend of ~~W~~ 930 per share, with a record date of November 14, 2025. The Group’s financial statements as at September 30, 2025, do not reflect this dividend payable.

175

EX-99.2

Exhibit 99.2

KB Financial Group Inc.

Separate Interim Financial Statements

September 30, 2025 and 2024

(Unaudited)

KB Financial Group Inc.

Page(s)
Report on Review of Condensed Separate Interim Financial Statements 1-2
Separate Interim Financial Statements
Separate Interim Statements of Financial Position 3
Separate Interim Statements of Comprehensive Income 4
Separate Interim Statements of Changes in Equity 5
Separate Interim Statements of Cash Flows 6
Notes to the Separate Interim FinancialStatements 7-50

LOGO

Report on Review of Condensed Separate Interim Financial Statements

(English Translation of a Report Originally Issued in Korean)

To the Shareholders and the Board of Directors of

KB Financial Group Inc.

Reviewed Financial Statements

We have reviewed the accompanying condensed separate interim financial statements of KB Financial Group Inc. (the “Company”). These condensed separate interim financial statements consist of the separate interim statement of financial position of the Company as at September 30, 2025, and the related separate interim statements of comprehensive income for the three-month and nine-month periods ended September 30, 2025 and 2024, and separate interim statements of changes in equity and cash flows for the nine-month periods ended September 30, 2025 and 2024, and material accounting policy information and other selected explanatory notes, expressed in Korean Won.

Management’s Responsibility for the Financial Statements

Management is responsible for the preparation and presentation of these condensed separate interim financial statements in accordance with International Financial Reporting Standards as adopted by the Republic of Korea (“Korean IFRS”) No. 1034 Interim Financial Reporting, and for such internal control as management determines is necessary to enable the preparation of condensed separate interim financial statements that are free from material misstatement, whether due to fraud or error.

Auditor’sResponsibility

Our responsibility is to express a conclusion on these condensed separate interim financial statements based on our review.

We conducted our review in accordance with quarterly or semi-annual review standards established by the Securities and Futures Commission of the Republic of Korea. A review of interim financial information consists of making inquiries, primarily of persons responsible for financial and accounting matters, and applying analytical and other review procedures. A review is substantially less in scope than an audit conducted in accordance with Korean Standards on Auditing and consequently does not enable us to obtain assurance that we would become aware of all significant matters that might be identified in an audit. Accordingly, we do not express an audit opinion.

Conclusion

Based on our review, nothing has come to our attention that causes us to believe the accompanying condensed separate interim financial statements are not prepared, in all material respects, in accordance with Korean IFRS No. 1034 Interim FinancialReporting.

1

Other Matters

We have audited the separate statement of financial position of the Company as at December 31, 2024, and the related separate statements of comprehensive income, changes in equity and cash flows for the year then ended, not presented herein, in accordance with Korean Standards on Auditing. We expressed an unqualified opinion on those financial statements in our audit report dated March 5, 2025. The separate statement of financial position as at December 31, 2024, presented herein for comparative purposes, is consistent, in all material respects, with the above audited statement of financial position as at December 31, 2024.

Review standards and their application in practice vary among countries. The procedures and practices used in the Republic of Korea to review such financial statements may differ from those generally accepted and applied in other countries.

/s/ Samil PricewaterhouseCoopers

Seoul, Korea

November 14, 2025

This report is effective as of November 14, 2025, the review report date. Certain subsequent events or circumstances, which may occur between the review report date and the time of reading this report, could have a material impact on the accompanying condensed separate interim financial statements and notes thereto. Accordingly, the readers of the review report should understand that there is a possibility that the above review report may have to be revised to reflect the impact of such subsequent events or circumstances, if any.

2

KB Financial Group Inc.

Separate Interim Statements of Financial Position

September 30, 2025 and December 31,2024

(In millions of Korean won)

Notes September 30,2025(Unaudited) December 31,2024
Assets
Cash and due from financial institutions 4,5,6,23 ~~W~~ 633,461 ~~W~~ 398,391
Financial assets at fair value through profit or loss 4,5,7 1,359,345 1,243,471
Loans measured at amortized cost 4,5,8 568,581 359,054
Investments in subsidiaries 9 26,867,817 26,867,817
Property and equipment 2,870 2,800
Intangible assets 13,027 14,497
Net defined benefit assets 13 1,773 2,902
Deferred income tax assets 10 3,586 5,257
Other assets 4,5 1,274,389 912,634
Total assets ~~W~~ 30,724,849 ~~W~~ 29,806,823
Liabilities
Borrowings 4,5,11 250,000 965,000
Debentures 4,5,12 4,370,039 2,962,032
Current income tax liabilities 691,965 502,705
Other liabilities 4,5 619,142 388,528
Total liabilities 5,931,146 4,818,265
Equity 14
Share capital 2,090,558 2,090,558
Hybrid securities 4,793,174 5,082,359
Capital surplus 14,741,159 14,754,475
Accumulated other comprehensive loss (8,184 ) (8,316 )
Retained earnings 4,643,385 4,305,542
Treasury shares (1,466,389 ) (1,236,060 )
Total equity 24,793,703 24,988,558
Total liabilities and equity ~~W~~ 30,724,849 ~~W~~ 29,806,823

The above separate interim statements of financial position should be read in conjunction with the accompanying notes.

3

KB Financial Group Inc.

Separate Interim Statements of Comprehensive Income

Three-Month and Nine-Month Periods Ended September 30, 2025 and 2024

(In millions of Korean won, except pershare amounts)

Notes 2025(Unaudited) 2024(Unaudited)
Three months Nine months Three months Nine months
Interest income ~~W~~ 8,220 ~~W~~ 24,296 ~~W~~ 10,045 ~~W~~ 32,408
Interest income from financial instruments at amortized cost 7,483 21,701 9,331 30,291
Interest income from financial instruments at fair value through profit or loss 737 2,595 714 2,117
Interest expense (28,343 ) (87,248 ) (25,387 ) (73,787 )
Net interest expense 16 (20,123 ) (62,952 ) (15,342 ) (41,379 )
Fee and commission income 483 1,473 387 1,381
Fee and commission expense (1,959 ) (6,292 ) (1,580 ) (6,140 )
Net fee and commission expense 17 (1,476 ) (4,819 ) (1,193 ) (4,759 )
Net gains (losses) on financial instruments at fair value through profit or loss 18 18,240 66,152 26,821 70,155
Net other operating income 19 — 2,355,586 — 2,243,250
General and administrative expenses 20 (23,127 ) (73,460 ) (21,845 ) (69,875 )
Operating income before provision for credit losses (26,486 ) 2,280,507 (11,559 ) 2,197,392
Provision for credit losses 32 26 470 125
Net operating income (26,454 ) 2,280,533 (11,089 ) 2,197,517
Net non-operating income (expense) 308 201 281 202
Profit before tax (26,146 ) 2,280,734 (10,808 ) 2,197,719
Income tax benefit (expense) 21 (191 ) (6,772 ) 278 1,810
Profit for the period (26,337 ) 2,273,962 (10,530 ) 2,199,529
Items that will not be reclassified to profit or loss:
Remeasurements of net defined benefit liabilities 107 132 27 63
Other comprehensive income(loss) for the period, net of tax 107 132 27 63
Total comprehensive income for the period ~~W~~ (26,230 ) ~~W~~ 2,274,094 ~~W~~ (10,503 ) ~~W~~ 2,199,592
Earnings per share 22
Basic earnings per share ~~W~~ (213 ) ~~W~~ 5,774 ~~W~~ (159 ) ~~W~~ 5,392
Diluted earnings per share (211 ) 5,719 (157 ) 5,327

The above separate interim statements of comprehensive income should be read in conjunction with the accompanying notes.

4

KB Financial Group Inc.

Separate Interim Statements of Changes in Equity

Nine-Month Periods Ended September 30, 2025 and2024

(In millions of Korean won)

Share<br>capital Hybridsecurities Capital<br>surplus Accumulatedothercomprehensiveincome Retainedearnings Treasuryshares Total<br>equity
Balance as of January 1, 2024 ~~W~~ 2,090,558 ~~W~~ 5,032,518 ~~W~~ 14,754,747 ~~W~~ (6,809 ) ~~W~~ 4,336,898 ~~W~~ (1,165,837 ) ~~W~~ 25,042,075
Comprehensive income for the period
Profit for the period — — — — 2,199,529 — 2,199,529
Remeasurements of net defined benefit liabilities — — — 63 — — 63
Total comprehensive income for the period — — — 63 2,199,529 — 2,199,592
Transactions with shareholders
Annual dividends — — — — (587,006 ) — (587,006 )
Quarterly dividends — — — — (600,086 ) — (600,086 )
Acquisition of treasury shares — — — — — (490,679 ) (490,679 )
Disposal of treasury shares — — 3,975 — — 234,600 238,575
Retirement of treasury shares — — — — (515,177 ) 515,177 —
Consideration for exchange right of exchangeable bonds — — (11,933 ) — — — (11,933 )
Issuance of hybrid securities — 399,045 — — — — 399,045
Redemption of hybrid securities — (349,204 ) — — — — (349,204 )
Dividends on hybrid securities — — — — (150,165 ) — (150,165 )
Others — — (17,391 ) — — — (17,391 )
Total transactions with shareholders — 49,841 (25,349 ) — (1,852,434 ) 259,098 (1,568,844 )
Balance as of September 30, 2024 (Unaudited) ~~W~~ 2,090,558 ~~W~~ 5,082,359 ~~W~~ 14,729,398 ~~W~~ (6,746 ) ~~W~~ 4,683,993 ~~W~~ (906,739 ) ~~W~~ 25,672,823
Balance as of January 1, 2025 ~~W~~ 2,090,558 ~~W~~ 5,082,359 ~~W~~ 14,754,475 ~~W~~ (8,316 ) ~~W~~ 4,305,542 ~~W~~ (1,236,060 ) ~~W~~ 24,988,558
Comprehensive income for the period
Profit for the period — — — — 2,273,962 — 2,273,962
Remeasurements of net defined benefit liabilities — — — 132 — — 132
Total comprehensive income for the period — — — 132 2,273,962 — 2,274,094
Transactions with shareholders
Annual dividends — — — — (298,285 ) — (298,285 )
Quarterly dividends — — — — (668,990 ) — (668,990 )
Acquisition of treasury shares — — — — — (1,044,851 ) (1,044,851 )
Retirement of treasury shares — — — — (814,522 ) 814,522 —
Issuance of hybrid securities — 404,013 — — — — 404,013
Redemption of hybrid securities — (693,198 ) — — — — (693,198 )
Dividends on hybrid securities — — — — (154,322 ) — (154,322 )
Others — — (13,316 ) — — — (13,316 )
Total transactions with shareholders — (289,185 ) (13,316 ) — (1,936,119 ) (230,329 ) (2,468,949 )
Balance as of September 30, 2025 (Unaudited) ~~W~~ 2,090,558 4,793,174 14,741,159 (8,184 ) 4,643,385 (1,466,389 ) 24,793,703

The above separate interim statements of changes in equity should be read in conjunction with the accompanying notes.

5

KB Financial Group Inc.

Separate Interim Statements of Cash Flows

Nine-MonthPeriods Ended September 30, 2025 and 2024

(In millions of Korean won)

Notes 2025(Unaudited) 2024(Unaudited)
Cash flows from operating activities
Profit for the period ~~W~~ 2,273,962 ~~W~~ 2,199,529
Adjustment for non-cash items
Depreciation and amortization expense 4,120 4,325
Provision for credit losses (26 ) (125 )
Share-based payments 14,111 11,729
Net interest expense 11,899 14,435
Valuation losses (gains) on financial assets at fair value through profit or loss (14,498 ) (26,358 )
Net other income (expense) 1,250 1,839
16,856 5,845
Changes in operating assets and liabilities
Due from financial institutions 40,000 60,000
Deferred income tax assets 1,623 (1,810 )
Other assets 572,893 260,232
Other liabilities (556,855 ) (287,347 )
57,661 31,075
Net cash inflow from operating activities 2,348,479 2,236,449
Cash flows from investing activities
Acquisition of financial assets at fair value through profit or loss (100,029 ) (150,000 )
Disposal of financial assets at fair value through profit of loss — 316,080
Acquisition of Subsidiaries — (150,000 )
Increase in loans measured at amortized cost (219,500 ) (105,000 )
Decrease in loans measured at amortized cost 10,000 155,000
Acquisition of property and equipment (785 ) (609 )
Acquisition of intangible assets (498 ) (700 )
Disposal of intangible assets 134 —
Net increase in guarantee deposits paid 3,646 1,597
Net cash inflow(outflow) from investing activities (307,032 ) 66,368
Cash flows from financing activities
Increase in borrowings 250,000 965,000
Decrease in debentures (965,000 ) (100,000 )
Increase in debentures 2,006,470 —
Decrease in debentures (600,000 ) (925,000 )
Redemption of principal of lease liabilities (442 ) (443 )
Dividends paid to shareholders (967,275 ) (1,187,092 )
Acquisition of treasury shares (1,044,851 ) (490,679 )
Issuance of hybrid securities 404,013 399,045
Redemption of hybrid securities (695,000 ) (349,204 )
Dividends paid on hybrid securities (154,322 ) (150,164 )
Other financing activities 30 (786 )
Net cash outflow from financing activities (1,766,377 ) (1,839,323 )
Net increase in cash and cash equivalents 275,070 463,494
Cash and cash equivalents at the beginning of the period 23 318,388 116,334
Cash and cash equivalents at the end of the period 23 ~~W~~ 593,458 ~~W~~ 579,828

The above separate interim statements of cash flows should be read in conjunction with the accompanying notes.

6

KB Financial Group Inc.

Notes to the Separate Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

1. The Company

KB Financial Group Inc. (the “Company”) was incorporated on September 29, 2008, under the Financial Holding Companies Act of Korea, through stock transfers from the former shareholders of Kookmin Bank, KB Investment & Securities Co., Ltd., KB Asset Management Co., Ltd., KB Real Estate Trust Co., Ltd., KB Investment Co., Ltd., KB Futures Co., Ltd., KB Credit Information Co., Ltd., and KB Data Systems Co., Ltd., and the Company’s main business purpose is to control subsidiaries that engage in the financial business or subsidiaries closely related to the financial business through the stock ownership. The headquarter is located at 26, Gukjegeumyung-ro 8-gil, Yeongdeungpo-gu, Seoul. The Company’s share capital as of September 30, 2025, is ~~W~~ 2,090,558 million. In 2011, Kookmin Bank spun off its credit card business segment and established a new separate credit card company, KB Kookmin Card Co., Ltd., and KB Investment & Securities Co., Ltd. merged with KB Futures Co., Ltd. The Company established KB Savings Bank Co., Ltd. in January 2012, acquired Yehansoul Savings Bank Co., Ltd. in September 2013, and KB Savings Bank Co., Ltd. merged with Yehansoul Savings Bank Co., Ltd. in January 2014. In March 2014, the Company acquired Woori Financial Co., Ltd. and changed its name to KB Capital Co., Ltd. Meanwhile, the Company included LIG Insurance Co., Ltd. as an associate and changed its name to KB Insurance Co., Ltd. in June 2015, and KB Insurance Co., Ltd. became one of the subsidiaries through a tender offer in May 2017. Also, the Company included Hyundai Securities Co., Ltd. as an associate in June 2016 and included it as a subsidiary in October 2016 by comprehensive exchange of shares. Hyundai Securities Co., Ltd. merged with KB Investment & Securities Co., Ltd. in December 2016 and changed its name to KB Securities Co., Ltd. in January 2017. In August 2020, the Company and subsidiaries (the “Group”) acquired Prudential Life Insurance Company of Korea Ltd. which was classified as a subsidiary and the name was changed to KB Life Insurance Co., Ltd. in December 2022. Then in January 2023, it merged with another existing KB Life Insurance Co., Ltd. The Company sold 100% of the shares of KB Credit Information Co., Ltd. to KB Kookmin Card Co., Ltd. on June 30, 2023.

The Company has been listed on the Korea Exchange (“KRX”) since October 10, 2008, and on the New York Stock Exchange (“NYSE”) for its American Depositary Shares (“ADS”) since September 29, 2008. The number of shares authorized in its Articles of Incorporation is 1,000 million.

2. Basis of Preparation

2.1 Application of KoreanIFRS

The Company maintains its accounting records in Korean won and prepares statutory financial statements in the Korean language (Hangul) in accordance with International Financial Reporting Standards as adopted by the Republic of Korea (“Korean IFRS”). The accompanying separate financial statements have been translated into English from the Korean language separate financial statements.

The separate financial statements of the Company have been prepared in accordance with Korean IFRS. Korean IFRS are the standards and related interpretations issued by the International Accounting Standards Board (“IASB”) that have been adopted by the Republic of Korea.

The preparation of separate financial statements requires the use of certain critical accounting estimates. Management also needs to exercise judgment in applying the Company’s accounting policies. The areas that require more complex and higher level of judgment or areas that require significant assumptions and estimates are disclosed in Note 2.4.

The separate financial statements have been prepared in accordance with Korean IFRS No.1027 Separate Financial Statements.

7

KB Financial Group Inc.

Notes to the Separate Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

2.1 Application of Korean IFRS (cont’d)

The Company’s condensed separate interim financial statements for the nine-month period ended September 30, 2025, have been prepared in accordance with Korean IFRS No.1034 Interim Financial Reporting and contain less information than is required in annual separate financial statements. Selected explanatory notes include descriptions of transactions or events that are significant in understanding changes in the financial position and financial performance of the Company since the end of the previous annual reporting period. These separate interim financial statements have been prepared in accordance with Korean IFRS that is effective or early adopted as of September 30, 2025.

2.1.1 The Company has applied the following new and amended standards for the first time for its annual reporting period commencing on January 1, 2025.

- Amendment of Korean IFRS No.1021 “The Effects of Changes in Foreign Exchange Rates” and KoreanIFRS No.1101 “First-time Adoption of International Financial Reporting Standards” - Lack of exchangeability

The amendments require the Company to determine a spot exchange rate when exchangeability is lacking, and to disclose information on the nature and financial effects of the currency not being exchangeable into another currency, the spot exchange rate(s) used, the estimation process, and the risks to which the Company is exposed. These amendments do not have a significant impact on the financial statements.

2.1.2 The following are the accounting standards that have been established or announced but have not yet been implemented, which the Company has not applied

- Amendment of Korean IFRS No.1109 “Financial Instruments” and No.1107 “FinancialInstruments”

The amendments respond to recent questions arising in practice. These amendment will be applied to the financial statements for the accounting year beginning on or after January 1, 2026. These amendments do not have a significant impact on the financial statements.

- clarify the date of recognition and derecognition of some financial assets and liabilities, with a new exception<br>for some financial liabilities settled through an electronic cash transfer system;
- clarify and add further guidance for assessing whether a financial asset meets the solely payments of principal<br>and interest (SPPI) criterion;
--- ---
- add new disclosures for certain instruments with contractual terms that can change cash flows; and<br>
--- ---
- update the disclosures for equity instruments designated at fair value through other comprehensive income<br>(FVOCI).
--- ---
- Korean IFRS Accounting Standards Annual Improvements Volume 11
--- ---

Korean IFRS Accounting Standards Annual Improvements Volume 11 will be effective for annual reporting periods beginning on or after January 1, 2026. These amendments do not have a significant impact on the financial statements.

• Korean IFRS No.1101 “First-time adoption of International Financial Reporting Standards”: Hedge<br>accounting by a first-time adopter
• Korean IFRS No.1107 “Financial Instruments: Disclosures”: Gain or loss on derecognition, Application<br>guidance
--- ---
• Korean IFRS No.1109 “Financial Instruments”: Derecognition of lease liabilities, Definition of<br>transaction price
--- ---
• Korean IFRS No.1110 “Consolidated Financial Statements”: Determination of a ‘de facto<br>agent’
--- ---
• Korean IFRS No.1007 “Statement of Cash Flows”: Cost method
--- ---

8

KB Financial Group Inc.

Notes to the Separate Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

2.2 Measurement Basis

The separate financial statements have been prepared under the historical cost convention unless otherwise specified.

2.3 Functional and Presentation Currency

Items included in the separate financial statements of the Company are measured using the currency of the primary economic environment in which the Company operates (“functional currency”). The separate financial statements are presented in Korean won, which is the Company’s functional and presentation currency.

2.4 Critical Accounting Estimates

The Company applies accounting policies and uses judgements, accounting estimates, and assumptions that may have a significant impact on the assets (liabilities) and incomes (expenses) in preparing the separate financial statements. Management’s estimates of outcomes may differ from actual outcomes if management’s estimates and assumptions based on management’s best judgment are different from the actual environment.

Estimates and underlying assumptions are continually evaluated, and changes in accounting estimates are recognized in the period in which the estimates are changed and in any future periods affected.

Uncertainties in estimates and assumptions with significant risks used in the preparation of these condensed separate interim financial statements are the same as 2024 financial statements, except for the method of estimating income tax expense.

3. Material Accounting Policies

The material accounting policies and calculation methods applied in the preparation of these condensed separate interim financial statements are the same as those applied to the separate financial statements for the year ended December 31, 2024, except for the impact of changes due to adopting new and amended standards and interpretations, as described in Note 2.1 and below paragraph.

The Company is subject to Pillar 2 income taxes, and has applied the temporary exemption provision regarding the recognition and disclosure of deferred taxes related to the Pillar 2 rules.

Income tax expense for the interim period is measured by applying the expected average annual income tax rate applicable on expected total annual income.

9

KB Financial Group Inc.

Notes to the Separate Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

4. Financial Risk Management

4.1 Summary

4.1.1 Overview of financial risk management policy

The financial risks that the Company is exposed to are credit risk, market risk, liquidity risk and others.

This note regarding financial risk management provides information about the risks that the Company is exposed to and about its objectives, policies, risk assessment and management procedures, and capital management. Additional quantitative information is disclosed throughout the separate financial statements.

The Company’s risk management system focuses on efficiently supporting long-term strategy and management decisions of the Company by increasing risk transparency, preventing risk transfer between subsidiaries and preemptive response to rapidly changing financial environments. Credit risk, market risk, liquidity risk, operational risk, interest rate risk, insurance risk, credit concentration risk, strategy risk, reputation risk and foreign exchange settlement risk are recognized as significant risks.

4.1.2 Risk management organization

4.1.2.1 Risk Management Committee

The Risk Management Committee, as the ultimate decision-making body, deals with risk-related issues, such as establishing risk management strategies in accordance with the strategic direction determined by the Board of Directors, determining the affordable level of risk appetite, reviewing the level of risk and the status of risk management activities, approving the application of risk management systems, methodologies, and major improvements, and establishing and approving risk management policies and procedures to timely recognize, measure, monitor, and control risks arising from various transactions by the Group.

4.1.2.2 Risk Management Council

The Risk Management Council is responsible for consulting on matters delegated by the Risk Management Committee and requests for review by the Group Management Executive Committee, consulting on details of each subsidiary’s risk management policies and procedures, monitoring the Group’s risk management status, and establishing and implementing necessary measures.

4.1.2.3 Risk Management Department

The Risk Management Department performs the Company’s risk management detailed policies, procedures, and business processes, and is responsible for calculating the Group’s risk-weighted assets, monitoring and managing internal capital limits.

10

KB Financial Group Inc.

Notes to the Separate Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

4.2 Credit Risk

4.2.1 Overview of credit risk

Credit risk is the risk of loss from a portfolio of assets held due to a counterparty’s default, breach of contract, and deterioration in credit quality. For risk management purposes, the Company considers the default risk of individual borrowers.

4.2.2 Credit risk management

The Company measures the expected losses on assets subject to credit risk management and uses them as a management indicator.

4.2.3 Maximum exposure to credit risk

The Company’s maximum exposures to credit risk without consideration of collateral values in relation to financial instruments other than equity securities as of September 30, 2025 and December 31, 2024, are as follows:

(In millions of Korean won) September 30,<br>2025 December 31,2024
Due from financial institutions ~~W~~ 633,461 ~~W~~ 398,391
Loans measured at amortized cost * 568,581 359,054
Loans measured at fair value through profit or loss 55,260 53,952
Other financial assets * 50,402 48,614
~~W~~ 1,307,704 ~~W~~ 860,011
* After netting of allowance
--- ---

4.2.4 Credit risk of loans

The Company maintains allowances for loan losses associated with credit risk of loans to manage its credit risk.

The Company assesses expected credit losses and recognizes loss allowances of financial assets at amortized cost and financial assets at fair value through other comprehensive income. Financial assets at fair value through profit or loss are excluded. Expected credit losses are probability-weighted estimate of possible credit losses occurring within a certain range by reflecting reasonable and supportable information that is reasonably available at the end of the reporting period without undue cost or effort, including information about past events, current conditions, and forecasts of future economic conditions. The Company measures the expected credit losses on loans classified as financial assets at amortized cost, by deducting allowances for credit losses. The expected credit losses on loans classified as financial assets at fair value through other comprehensive income are presented in other comprehensive income in the financial statements.

11

KB Financial Group Inc.

Notes to the Separate Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

4.2.4 Credit risk of loans (cont’d)

Credit qualities of loans measured at amortized cost as of September 30, 2025 and December 31 2024, are classified as follows:

(In millions of Korean won)

September 30, 2025
12-monthexpectedcredit losses Lifetime expected credit losses Not applyingexpectedcredit losses Total
Not impaired Impaired
Loans measured at amortized cost *
Corporate
Grade 1 ~~W~~ 569,500 ~~W~~ — ~~W~~ — ~~W~~ — ~~W~~ 569,500
Grade 2 — — — — —
Grade 3 — — — — —
Grade 4 — — — — —
Grade 5 — — — — —
~~W~~ 569,500 ~~W~~ — ~~W~~ — ~~W~~ — ~~W~~ 569,500

(In millions of Korean won)

December 31, 2024
12-monthexpectedcredit losses Lifetime expected credit losses Not applyingexpectedcredit losses Total
Not impaired Impaired
Loans measured at amortized cost *
Corporate
Grade 1 ~~W~~ 360,000 ~~W~~ — ~~W~~ — ~~W~~ — ~~W~~ 360,000
Grade 2 — — — — —
Grade 3 — — — — —
Grade 4 — — — — —
Grade 5 — — — — —
~~W~~ 360,000 ~~W~~ — ~~W~~ — ~~W~~ — ~~W~~ 360,000
* Before netting of allowance
--- ---

Credit qualities of loans graded according to the probability of default as of September 30, 2025 and December 31 2024, are as follows:

Range of probability of default (%)
Grade 1 0.0 ~ 1.0
Grade 2 1.0 ~ 5.0
Grade 3 5.0 ~ 15.0
Grade 4 15.0 ~ 30.0
Grade 5 30.0 ~

12

KB Financial Group Inc.

Notes to the Separate Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

4.2.5 Credit risk of due from financial institutions

Credit qualities of due from financial institutions as of September 30, 2025, and December 31, 2024, are as follows:

(In millions of Korean won)

September 30, 2025
12-monthexpectedcredit losses Lifetime expected credit losses Not applyingexpectedcredit losses Total
Not impaired Impaired
Due from financial institutions measured at amortized cost
Grade 1 ~~W~~ 633,461 ~~W~~ — ~~W~~ — ~~W~~ — ~~W~~ 633,461
Grade 2 — — — — —
Grade 3 — — — — —
Grade 4 — — — — —
Grade 5 — — — — —
~~W~~ 633,461 ~~W~~ — ~~W~~ — ~~W~~ — ~~W~~ 633,461

(In millions of Korean won)

December 31, 2024
12-monthexpectedcredit losses Lifetime expected credit losses Not applyingexpectedcredit losses Total
Not impaired Impaired
Due from financial institutions measured at amortized cost
Grade 1 ~~W~~ 398,391 ~~W~~ — ~~W~~ — ~~W~~ — ~~W~~ 398,391
Grade 2 — — — — —
Grade 3 — — — — —
Grade 4 — — — — —
Grade 5 — — — — —
~~W~~ 398,391 ~~W~~ — ~~W~~ — ~~W~~ — ~~W~~ 398,391

13

KB Financial Group Inc.

Notes to the Separate Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

4.2.6 Credit risk concentration analysis

4.2.6.1 Classifications of corporate loans by industry as of September 30, 2025, and December 31, 2024, are as follows:

(In millions of Korean won) September 30, 2025
Corporate loans * % Allowances Carrying amount
Financial institutions ~~W~~ 624,760 100.00 ~~W~~ (919 ) ~~W~~ 623,841
(In millions of Korean won) December 31, 2024
Corporate loans * % Allowances Carrying amount
Financial institutions ~~W~~ 413,952 100.00 ~~W~~ (946 ) ~~W~~ 413,006
* Amount includes loans measured at fair value through profit or loss and amortized cost.
--- ---

4.2.6.2 Classifications of due from financial institutions by industry as of September 30, 2025, and December 31 2024, are as follows:

(In millions of Korean won) September 30, 2025
Amount % Allowances Carrying amount
Due from financial institutions measured at amortized cost
Financial institutions ~~W~~ 633,461 100.00 ~~W~~ — ~~W~~ 633,461
(In millions of Korean won) December 31, 2024
Amount % Allowances Carrying amount
Due from financial institutions measured at amortized cost
Financial institutions ~~W~~ 398,391 100.00 ~~W~~ — ~~W~~ 398,391

14

KB Financial Group Inc.

Notes to the Separate Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

4.3 Liquidity Risk

4.3.1 Overview of liquidity risk

Liquidity risk is the risk that the Company becomes insolvent due to the mismatch between the inflow and outflow of funds, unexpected cash outflows, or a risk of loss due to financing funds at a high interest rate or disposing of securities at an unfavorable price due to lack of available funds. The Company manages its liquidity risk through analysis of the contractual maturity of all financial assets and liabilities and discloses in six categories such as on demand, less than one month, between one month to three months, between three months to one year, between one year to five years, and over five years.

4.3.2. Liquidity risk management

The liquidity risk is managed through risk management policies and liquidity risk management guidelines set forth in these policies that apply to all risk management policies and procedures that may arise throughout the overall business of the Company.

4.3.3. Analysis of remaining contractual maturity of financial liabilities

The cash flows disclosed in the maturity analysis are undiscounted contractual amounts including principal and future interest payments; as such, amounts in the table below do not match with those in the statements of financial position which are based on discounted cash flows(DCFs). The future interest payments for floating-rate liabilities are calculated on the assumption that the current interest rate is the same until maturity.

Remaining contractual maturity of financial liabilities as of September 30, 2025 and December 31, 2024, are as follows:

(In millions of Korean won) September 30, 2025
On Demand Up to 1 month 1-3 months 3-12 months 1-5 years Over 5 years Total
Financial liabilities
Borrowings ~~W~~ — ~~W~~ 250,000 ~~W~~ — ~~W~~ — ~~W~~ — ~~W~~ — ~~W~~ 250,000
Debentures — 90,923 17,285 591,076 3,737,585 236,277 4,673,146
Lease liabilities — 52 96 386 371 — 905
Other financial liabilities — 19,026 15,987 — — — 35,013
~~W~~ — ~~W~~ 360,001 ~~W~~ 33,368 ~~W~~ 591,462 ~~W~~ 3,737,956 ~~W~~ 236,277 ~~W~~ 4,959,064
(In millions of Korean won) December 31, 2024
On Demand Up to 1 month 1-3 months 3-12 months 1-5 years Over 5 years Total
Financial liabilities
Borrowings ~~W~~ — ~~W~~ — ~~W~~ 365,000 ~~W~~ 600,000 ~~W~~ — ~~W~~ — ~~W~~ 965,000
Debentures — 105,451 13,009 626,993 1,662,628 774,560 3,182,641
Lease liabilities — 48 91 362 375 — 876
Other financial liabilities — 2,088 462 — — — 2,550
~~W~~ — ~~W~~ 107,587 ~~W~~ 378,562 ~~W~~ 1,227,355 ~~W~~ 1,663,003 ~~W~~ 774,560 ~~W~~ 4,151,067

15

KB Financial Group Inc.

Notes to the Separate Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

4.4 Market Risk

4.4.1 Concept

Market risk refers to risks that can result in losses due to changes in market factors such as interest rate, stock price, and foreign exchange rate, etc. The Company manages the market risks by dividing them into those arising from the trading position and those arising from the non-trading position.

4.4.2 Trading position

In accordance with Financial Holding Companies Act, the Company’s main business is to control financial companies or companies closely related to the financial service. And the Company cannot perform any other business other than managing activities as a holding company, therefore there is no risk of trading position.

4.4.3 Non-trading position

Non-trading position refers to the part except trading position, and the main risk the Company is managing is interest rate risk.

4.4.3.1 Interest rate risk

(a) Definition of interest rate risk

Interest rate risk refers to the risk of changes in the value (fair value) of the items in the statement of financial position due to changes in interest rate and the risk of changes in cash flows related to interest income and interest expense arising from investment and financing activities.

(b) Observation method and management indicator on interest rate risk

The main objective of interest rate risk management is to protect the value changes from interest rate fluctuations. In addition to the Interest Rate Risk in the Banking Book (“IRRBB”) standard methodology required for disclosure to measure interest rate risk.

16

KB Financial Group Inc.

Notes to the Separate Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

5. Financial Assets and Financial Liabilities

5.1 Classification and Fair Value of Financial Instruments

5.1.1 Carrying amount and fair value of financial assets and liabilities by category as of September 30, 2025 and December 31, 2024, are as follows:

(In millions of Korean won) September 30, 2025
Carrying amount Fair value
Financial assets
Financial assets at fair value through profit or loss
Hybrid securities ~~W~~ 1,203,365 ~~W~~ 1,203,365
Beneficiary certificates 100,720 100,720
Loans 55,260 55,260
Financial assets at amortized cost
Due from financial institutions 633,461 633,461
Loans 568,581 568,581
Other financial assets 50,402 50,402
~~W~~ 2,611,789 ~~W~~ 2,611,789
Financial liabilities
Financial liabilities at amortized cost
Borrowings ~~W~~ 250,000 ~~W~~ 250,000
Debentures 4,370,039 4,350,472
Other financial liabilities 49,668 49,668
~~W~~ 4,669,707 ~~W~~ 4,650,140
(In millions of Korean won) December 31, 2024
Carrying amount Fair value
Financial assets
Financial assets at fair value through profit or loss
Hybrid securities ~~W~~ 1,189,519 ~~W~~ 1,189,519
Loans 53,952 53,952
Financial assets at amortized cost
Due from financial institutions 398,391 398,391
Loans 359,054 359,054
Other financial assets 48,614 48,614
~~W~~ 2,049,530 ~~W~~ 2,049,530
Financial liabilities
Financial liabilities at amortized cost
Borrowings ~~W~~ 965,000 ~~W~~ 965,000
Debentures 2,962,032 2,906,349
Other financial liabilities 11,402 11,402
~~W~~ 3,938,434 ~~W~~ 3,882,751

Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants. The Company discloses the fair value of each class of assets and liabilities in a way that permits it to be compared with its carrying amount at the end of each reporting period. The best evidence of fair value of financial instruments is quoted price in an active market.

17

KB Financial Group Inc.

Notes to the Separate Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

5.1.1 Carrying amount and fair value of financial assets and liabilities by category as of September 30, 2025 and December 31, 2024, are as follows: (cont’d)

Methods of determining fair value of financial instruments are as follows:

Cash and due from financial institutions Fair value of cash is same as carrying amount. Carrying amount of demand deposit and settlement deposit is a reasonable approximation of fair value because these financial instruments do not have a fixed maturity and are receivable<br>on demand. Fair value of general deposit is measured using DCF Model.
Securities Fair value of financial instruments that are quoted in an active market is determined using the quoted prices. If there is no quoted price, fair value is determined using external professional valuation institutions. The<br>institutions use one or more valuation techniques that are deemed appropriate considering the characteristics of the financial instruments among DCF Model, Imputed Market Value Model, Free Cash Flow to Equity Model, Dividend Discount Model, Risk<br>Adjusted Discount Rate Method, and Net Asset Value Method.
Derivatives Fair value of exchange traded derivatives is determined using quoted price in an active market, and fair value of OTC derivatives is determined using valuation techniques. The Company uses internally developed valuation models that<br>are widely used by market participants to determine fair value of plain vanilla OTC derivatives including options, interest rate swaps, and currency swaps, based on observable market parameters. However, some complex financial instruments are valued<br>using appropriate models developed from generally accepted market valuation models including the Finite Difference Method (“FDM”), and the MonteCarlo Simulation or valuation results from independent external professional valuation<br>institution.
Loans Fair value of loans is determined using DCF model discounting the expected cash flows, which are contractual cash flows adjusted by the expected prepayment rate, at an appropriate discount rate.
Borrowings DCF model is used to determine the fair value of borrowings, but in the case of short-term maturity, carrying amount is a reasonable approximation of fair value.
Debentures Fair value is determined by using valuation results of external professional valuation institutions, which are calculated using market inputs.
Other financial assets and other financial liabilities Carrying amount is a reasonable approximation of fair value because other financial assets and other financial liabilities are temporary accounts used for other various transactions and their maturities are either relatively short<br>or not defined.

18

KB Financial Group Inc.

Notes to the Separate Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

5.1.2 Fair value hierarchy

The Company believes that valuation techniques used for measuring the fair value of financial instruments are reasonable and that the fair value recognized in the statements of financial position is appropriate. However, the fair value of the financial instruments recognized in the statements of financial position may be different if other valuation techniques or assumptions are used. Additionally, as there are a variety of valuation techniques and assumptions used in measuring fair value, it may be difficult to reasonably compare the fair value with that of other financial institutions.

The Company classifies and discloses fair value of the financial instruments into the three fair value levels as follows:

Level 1: The fair values are based on quoted prices (unadjusted) in active markets for identical assets or liabilities that the entity can access at the measurement date.
Level 2: The fair values are based on inputs other than quoted prices included within Level 1 that are observable for the asset or liability, either directly or indirectly.
Level 3: The fair values are based on unobservable inputs for the asset or liability.

The fair value measurement is categorized in its entirety in the same level of the fair value hierarchy as the lowest level input that is significant to the entire measurement. If an observable input requires an adjustment using an unobservable input and that adjustment results in a significantly higher or lower fair value measurement, the resulting measurement would be categorized within Level 3 of the fair value hierarchy.

5.1.2.1 Fair value hierarchy of financial assets and liabilities at fair value in the statements of financial position

Fair value hierarchy of financial assets at fair value in the statements of financial position as of September 30, 2025 and December 31, 2024, is as follows:

(In millions of Korean won) September 30, 2025
Fair value hierarchy Total
Level 1 Level 2 Level 3
Financial assets
Financial assets at fair value through profit or loss:
Hybrid securities ~~W~~ — ~~W~~ — ~~W~~ 1,203,365 ~~W~~ 1,203,365
Beneficiary certificates 100,720 — — 100,720
Loans — 55,260 — 55,260
~~W~~ 100,720 ~~W~~ 55,260 ~~W~~ 1,203,365 ~~W~~ 1,359,345
(In millions of Korean won) December 31, 2024
Fair value hierarchy Total
Level 1 Level 2 Level 3
Financial assets
Financial assets at fair value through profit or loss:
Hybrid securities ~~W~~ — ~~W~~ — ~~W~~ 1,189,519 ~~W~~ 1,189,519
Loans — 53,952 — 53,952
~~W~~ — ~~W~~ 53,952 ~~W~~ 1,189,519 ~~W~~ 1,243,471

19

KB Financial Group Inc.

Notes to the Separate Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

5.1.2.1 Fair value hierarchy of financial assets and liabilities at fair value in the statements of financial position (cont’d)

Valuation techniques and inputs of financial assets and liabilities classified as Level 2 and measured at fair value in the statements of financial position as of September 30, 2025 and December 31, 2024, are as follows:

(In millions of Korean won) September 30, 2025
Fair value Valuation<br>techniques Inputs
Financial assets
Financial assets at fair value through profit or loss:
Loans ~~W~~ 55,260 DCF model Interest rate,<br> <br>Discount<br>rate, etc.
(In millions of Korean won) December 31, 2024
Fair value Valuation<br>techniques Inputs
Financial assets
Financial assets at fair value through profit or loss:
Loans ~~W~~ 53,952 DCF model Interest rate,<br> <br>Discount<br>rate, etc.

5.1.2.2 Fair value hierarchy of financial assets and liabilities whose fair value is disclosed

Fair value hierarchy of financial assets and liabilities whose fair value is disclosed as of September 30, 2025 and December 31, 2024, is as follows:

September 30, 2025
(In millions of Korean won) Fair value hierarchy
Level 1 Level 2 Level 3 Total
Financial assets
Cash and due from financial institutions<br>^1^ ~~W~~ — ~~W~~ 633,461 ~~W~~ — ~~W~~ 633,461
Loans measured at amortized cost ^2^ — — 568,581 568,581
Other financial assets ^3^ — — 50,402 50,402
~~W~~ — ~~W~~ 633,461 ~~W~~ 618,983 ~~W~~ 1,252,444
Financial liabilities
Borrowings ^4^ ~~W~~ — ~~W~~ 250,000 ~~W~~ — ~~W~~ 250,000
Debentures — 4,350,472 — 4,350,472
Other financial liabilities ^3^ — — 49,668 49,668
~~W~~ — ~~W~~ 4,600,472 ~~W~~ 49,668 ~~W~~ 4,650,140

20

KB Financial Group Inc.

Notes to the Separate Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

5.1.2.2 Fair value hierarchy of financial assets and liabilities whose fair value is disclosed (cont’d)

December 31, 2024
(In millions of Korean won) Fair value hierarchy
Level 1 Level 2 Level 3 Total
Financial assets
Cash and due from financial institutions<br>^1^ ~~W~~ — ~~W~~ 398,391 ~~W~~ — ~~W~~ 398,391
Loans measured at amortized cost ^2^ — — 359,054 359,054
Other financial assets ^3^ — — 48,614 48,614
~~W~~ — ~~W~~ 398,391 ~~W~~ 407,668 ~~W~~ 806,059
Financial liabilities
Borrowings ^4^ ~~W~~ — ~~W~~ 965,000 ~~W~~ — ~~W~~ 965,000
Debentures — 2,906,349 — 2,906,349
Other financial liabilities ^3^ — — 11,402 11,402
~~W~~ — ~~W~~ 3,871,349 ~~W~~ 11,402 ~~W~~ 3,882,751
^1^ Because due from financial institutions classified as Level 2 are deposits on demand and with remaining<br>maturities of less than one year, carrying amounts are reasonable approximations of fair values.
--- ---
^2^ Because loans measured at amortized cost classified as Level 3 are loans with residual maturity of less<br>than one year, carrying amounts are reasonable approximations of fair values.
--- ---
^3^ For other financial assets and other financial liabilities classified as Level 3, carrying amounts are<br>reasonable approximations of fair values.
--- ---
^4^ For borrowings classified as Level 2, carrying amount is reasonable approximations of fair value.<br>
--- ---

Financial assets and liabilities whose carrying amount is a reasonable approximation of fair value, valuation techniques and inputs are not disclosed.

Valuation techniques and inputs of financial assets and liabilities classified as Level 2, and whose fair value is disclosed as of September 30, 2025 and December 31, 2024, are as follows:

(In millions of Korean won) Fair value Valuationtechniques Inputs
September 30,<br>2025 December 31,2024
Financial liabilities
Debentures ~~W~~ 4,350,472 ~~W~~ 2,906,349 DCF model Discount rate

5.2 Disclosure of Fair Value Hierarchy Level 3

5.2.1 Valuation policy and process of Level 3 fair value

The Company uses external, independent and qualified valuation service to determine the fair value of financial instruments at the end of every reporting period.

21

KB Financial Group Inc.

Notes to the Separate Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

5.2.2 Changes in fair value (Level 3) measured using valuation technique based on unobservable inputs in the market

5.2.2.1 Changes in financial instruments classified as Level 3 of the fair value hierarchy for the nine-month periods ended September 30, 2025 and 2024, are as follows:

(In millions of Korean won) 2025 2024
Financial assets at fairvalue<br>through profit or loss Financial assets at fairvalue<br>through profit or loss
Beginning ~~W~~ 1,189,519 ~~W~~ 1,011,363
Total gains or losses:
- Profit or loss 13,846 23,504
- Other comprehensive income — —
Purchases — 150,000
Sales — —
Issues — —
Settlements — —
Transfers into Level 3 — —
Transfers out of Level 3 — —
Ending ~~W~~ 1,203,365 ~~W~~ 1,184,867

5.2.2.2 In relation to changes in financial instruments classified as Level 3 of the fair value hierarchy, total gains or losses recognized in profit or loss for the period, and total gains or losses recognized in profit or loss from financial instruments held at the end of the reporting period for the nine-month periods ended September 30, 2025 and 2024, are as follows:

(In millions of Korean won) 2025 2024
Gains onfinancialinstrumentsat fair valuethroughprofit or loss Otheroperatingincome Netinterestincome Gains onfinancialinstrumentsat fair valuethroughprofit or loss Otheroperatingincome Netinterestincome
Total gains included in profit or loss for the period ~~W~~ 13,846 ~~W~~ — ~~W~~ — ~~W~~ 23,504 ~~W~~ — ~~W~~ —
Total gains for the period included in profit or loss for financial instruments held at the end of<br>the reporting period ~~W~~ 13,846 ~~W~~ — ~~W~~ — ~~W~~ 23,504 ~~W~~ — ~~W~~ —

22

KB Financial Group Inc.

Notes to the Separate Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

5.2.3 Sensitivity analysis of changes in unobservable inputs

5.2.3.1 Information about fair value measurements using unobservable inputs as of September 30, 2025 and December 31, 2024, is as follows:

(In millions of Korean won) September 30, 2025
Fair value Valuationtechniques Inputs Unobservableinputs Range ofunobservableinputs (%) Relationshipofunobservableinputs tofairvalue
Financial assets
Financial assets at fair value through profit or loss:
Hybrid securities ~~W~~1,203,365 Hull and White Model, MonteCarlo Simulation Matrix YTM, Additional spread by grade, Risk spread of company, Valid credit rating,<br>Disclosed information of securities, Estimated volatility of Interest rate Discount rate 2.68 ~ 8.43 The lower the discount rate, the higher the fair value
Volatility of interest rate 0.48 ~ 0.52 The higher the volatility, the higher the fair value fluctuation
(In millions of Korean won) December 31, 2024
Fair value Valuationtechniques Inputs Unobservableinputs Range ofunobservableinputs (%) Relationshipofunobservableinputs tofairvalue
Financial assets
Financial assets at fair value through profit or loss:
Hybrid securities ~~W~~1,189,519 Hull and White Model, MonteCarlo Simulation Matrix YTM, Additional spread by grade, Risk spread of company, Valid credit rating,<br>Disclosed information of securities, Estimated volatility of Interest rate Discount rate 3.41 ~ 8.45 The lower the discount rate, the higher the fair value
Volatility of interest rate 0.56 ~ 0.73 The higher the volatility, the higher the fair value fluctuation

23

KB Financial Group Inc.

Notes to the Separate Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

5.2.3.2 Sensitivity analysis of changes in unobservable inputs

Sensitivity analysis of financial instruments is performed to measure favorable and unfavorable changes in fair value of financial instruments which are affected by unobservable parameters, using a statistical technique. When the fair value is affected by more than one input parameter, the amounts represent the most favorable or most unfavorable outcome. There are hybrid securities whose fair value changes are recognized in profit or loss.

Results of the sensitivity analysis of changes in unobservable inputs as of September 30, 2025 and December 31, 2024, are as follows:

(In millions of Korean won) September 30, 2025
Profit or loss Other comprehensive<br>income or loss
Favorablechanges Unfavorablechanges Favorablechanges Unfavorablechanges
Financial assets
Financial assets at fair value through profit or loss:
Hybrid securities * ~~W~~ 9,175 ~~W~~ (8,882 ) ~~W~~ — ~~W~~ —
* The changes in fair value are calculated by increasing or decreasing discount rates (2.68% ~ 8.43%) by 1%p,<br>which are principal unobservable input parameters.
--- ---
(In millions of Korean won) December 31, 2024
--- --- --- --- --- --- --- --- --- ---
Profit or loss Other comprehensive<br>income or loss
Favorablechanges Unfavorablechanges Favorablechanges Unfavorablechanges
Financial assets
Financial assets at fair value through profit or loss:
Hybrid securities * ~~W~~ 7,351 ~~W~~ (7,227 ) ~~W~~ — ~~W~~ —
* The changes in fair value are calculated by increasing or decreasing discount rates (3.41% ~ 8.45%) by 1%p,<br>which are principal unobservable input parameters.
--- ---

24

KB Financial Group Inc.

Notes to the Separate Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

6. Due from Financial Institutions

6.1 Details of due from financial institutions as of September 30, 2025 and December 31, 2024, are as follows:

(In millions of Korean won) Financial Institution Interest rate (%)<br><br><br>as of<br><br><br>September 30,2025 September 30,<br>2025 December 31,2024
Due from financial institutions in Korean won Due from banks Kookmin Bank 0.00 ~ 1.20 ~~W~~ 335,106 ~~W~~ 316,781
KB Savings Bank Co., Ltd. 2.20 ~ 2.40 80,057 80,000
Shinhan Bank 2.50 218,298 —
Standard Chartered Bank — — 1,610
~~W~~ 633,461 ~~W~~ 398,391

6.2 Details of restricted due from financial institution as of September 30, 2025 and December 31, 2024, are as follows:

(In millions of Korean won) Financial Institution September 30,2025 December 31,2024 Reasons of restriction
Due from financial institutions in Korean won Kookmin<br>Bank ~~W~~ 3 ~~W~~ 3 Pledged as collateral for the overdraft account

7. Financial Assets at Fair Value through Profit or Loss

Details of financial assets at fair value through profit or loss as of September 30, 2025 and December 31, 2024, are as follows:

(In millions of Korean won) September 30,<br>2025 December 31,2024
Financial assets at fair value through profit or loss:
Hybrid securities ~~W~~ 1,203,365 ~~W~~ 1,189,519
Beneficiary certificates 100,720 —
Loans 55,260 53,952
~~W~~ 1,359,345 ~~W~~ 1,243,471

25

KB Financial Group Inc.

Notes to the Separate Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

8. Loans Measured at Amortized Cost

Details of loans measured at amortized cost as of September 30, 2025 and December 31, 2024, are as follows:

(In millions of Korean won) September 30,<br>2025 December 31,2024
Loans measured at amortized cost ~~W~~ 569,500 ~~W~~ 360,000
Less: Allowances for loan losses (919 ) (946 )
~~W~~ 568,581 ~~W~~ 359,054

9. Investments in Subsidiaries

9.1 Details of subsidiaries as of September 30, 2025, are as follows:

Name of subsidiaries Industry Location
Kookmin Bank Banking and foreign exchange transaction Korea
KB Securities Co., Ltd. Financial investment Korea
KB Insurance Co., Ltd. Non-life insurance Korea
KB Kookmin Card Co., Ltd. Credit card and installment financial business Korea
KB Life Insurance Co., Ltd. Life insurance Korea
KB Asset Management Co., Ltd. Investment advisory and investment trust Korea
KB Capital Co., Ltd. Financial leasing Korea
KB Real Estate Trust Co., Ltd. Real estate trust management Korea
KB Savings Bank Co., Ltd. Savings banking Korea
KB Investment Co., Ltd. Capital investment Korea
KB Data System Co., Ltd. System software, development and supply Korea

9.2 Details of investments in subsidiaries as of September 30, 2025 and December 31, 2024, are as follows:

(In millions of Korean won, except for shares) As of September 30, 2025 Carrying amount
Name of subsidiaries Number of issuedshares Ownership<br>(%) September 30,<br>2025 December 31,2024
Kookmin Bank 404,379,116 100.00 ~~W~~ 14,821,721 ~~W~~ 14,821,721
KB Securities Co., Ltd. 298,620,424 100.00 3,342,391 3,342,391
KB Insurance Co., Ltd. 66,500,000 100.00 2,375,430 2,375,430
KB Kookmin Card Co., Ltd. 92,000,000 100.00 1,953,175 1,953,175
KB Life Insurance Co., Ltd. 16,201,518 100.00 2,795,367 2,795,367
KB Asset Management Co., Ltd. 7,667,550 100.00 96,312 96,312
KB Capital Co., Ltd. 32,175,147 100.00 873,811 873,811
KB Real Estate Trust Co., Ltd.* 21,616,085 100.00 271,553 271,553
KB Savings Bank Co., Ltd. 8,001,912 100.00 176,813 176,813
KB Investment Co., Ltd. 22,525,328 100.00 154,910 154,910
KB Data System Co., Ltd. 800,000 100.00 6,334 6,334
~~W~~ 26,867,817 ~~W~~ 26,867,817
* Investment in subsidiaries increased by ~~W~~ 150,000 million due to the issuance of shares<br>by KB Real Estate Trust Co., Ltd. during the twelve-month period ended December 31, 2024.
--- ---

26

KB Financial Group Inc.

Notes to the Separate Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

10. Deferred Income Tax Assets and Liabilities

Details of deferred income tax assets and liabilities as September 30, 2025 and December 31, 2024, are as follows:

(In millions of Korean won) September 30, 2025
Assets Liabilities Net amount
Share-based payments ~~W~~ 8,057 ~~W~~ — ~~W~~ 8,057
Membership rights 242 — 242
Defined benefit obligation 2,717 — 2,717
Plan assets — (2,717 ) (2,717 )
Short-term employee benefits 1,276 — 1,276
Losses on valuation of financial assets at fair value through profit or loss — (6,351 ) (6,351 )
Others 1,064 (702 ) 362
13,356 (9,770 ) 3,586
Offsetting of deferred tax assets and liabilities (9,770 ) 9,770 —
~~W~~ 3,586 ~~W~~ — ~~W~~ 3,586
(In millions of Korean won) December 31, 2024
--- --- --- --- --- --- --- --- --- ---
Assets Liabilities Net amount
Share-based payments ~~W~~ 6,682 ~~W~~ — ~~W~~ 6,682
Membership rights 226 — 226
Defined benefit obligation 2,855 — 2,855
Plan assets — (2,855 ) (2,855 )
Short-term employee benefits 363 — 363
Gains or losses on valuation of financial assets at fair value through profit or loss — (2,513 ) (2,513 )
Others 1,203 (704 ) 499
11,329 (6,072 ) 5,257
Offsetting of deferred tax assets and liabilities (6,072 ) 6,072 —
~~W~~ 5,257 ~~W~~ — ~~W~~ 5,257

27

KB Financial Group Inc.

Notes to the Separate Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

11. Borrowings

11.1 Details of borrowings as of September 30, 2025 and December 31, 2024, are as follows:

(In millions of Korean won) September 30,<br>2025 December 31,<br>2024
Borrowings ~~W~~ 250,000 ~~W~~ 965,000

11.2 Details of borrowings as of September 30, 2025 and December 31, 2024, are as follows:

(In millions of Korean won) Lenders Borrowing date Maturity date Interest rate(%) as ofSeptember 30,2025 September 30,<br>2025 December 31,<br>2024
Borrowings in Korean won Other borrowings KIWOOM SECURITIES co., Ltd. Feb. 20, 2024 Feb. 18, 2025 — ~~W~~ — ~~W~~ 200,000
Other borrowings HANYANG SECURITIES co., Ltd. Feb. 21, 2024 Feb. 19, 2025 — — 65,000
Other borrowings SK SECURITIES co., Ltd. Mar. 21, 2024 Mar. 20, 2025 — — 100,000
Other borrowings KIWOOM SECURITIES co., Ltd. Apr. 25, 2024 Apr. 24, 2025 — — 100,000
Other borrowings KIWOOM SECURITIES co., Ltd. May 29, 2024 May 28, 2025 — — 100,000
Other borrowings SK SECURITIES co., Ltd. Jun. 26, 2024 Jun. 25, 2025 — — 200,000
Other borrowings KIWOOM SECURITIES co., Ltd. Jul. 29, 2024 Jul. 28, 2025 — — 200,000
Other borrowings KIWOOM SECURITIES co., Ltd. Sep. 15, 2025 Nov. 17, 2025 2.65 250,000 —
~~W~~ 250,000 ~~W~~ 965,000

11.3 Maturities of borrowings as of September 30, 2025 and December 31, 2024, are as follows:

(In millions of Korean won) September 30, 2025
Up to<br>3 months 3~6<br>months 6~12<br>months 1~3<br>years Over<br>3 years Total
Borrowings in Korean won ~~W~~ 250,000 ~~W~~ — ~~W~~ — ~~W~~ — ~~W~~ — ~~W~~ 250,000
December 31, 2024
Up to<br>3 months 3~6<br>months 6~12<br>months 1~3<br>years Over<br>3 years Total
Borrowings in Korean won ~~W~~ 365,000 ~~W~~ 400,000 ~~W~~ 200,000 ~~W~~ — ~~W~~ — ~~W~~ 965,000

28

KB Financial Group Inc.

Notes to the Separate Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

12. Debentures

12.1 Details of debentures as of September 30, 2025 and December 31, 2024, are as follows:

(In millions of Korean won) Issuance date Maturity date Interest rate (%)<br>as of<br>September 30, 2025 September 30,<br>2025 December 31,<br>2024
Unguaranteed debentures No.15-3 May 12, 2016 May 12, 2026 2.01 ~~W~~ 200,000 ~~W~~ 200,000
Unguaranteed debentures No.18-3 Jul. 25, 2016 Jul. 25, 2026 1.69 80,000 80,000
Unguaranteed debentures No.19-3 Aug. 25, 2016 Aug. 25, 2026 1.69 120,000 120,000
Unguaranteed debentures No.25-4 May 24, 2017 May 24, 2027 2.62 80,000 80,000
Unguaranteed debentures No.28-3 Aug. 30, 2017 Aug. 30, 2027 2.60 60,000 60,000
Unguaranteed debentures No.31-3 Feb. 28, 2018 Feb. 28, 2028 3.02 60,000 60,000
Unguaranteed debentures No.32-3 Apr. 6, 2018 Apr. 6, 2028 2.86 20,000 20,000
Unguaranteed debentures No.33-2 Jun. 12, 2018 Jun. 12, 2028 2.92 30,000 30,000
Unguaranteed debentures No.34-3 Jul. 25, 2018 Jul. 25, 2025 2.71 — 20,000
Unguaranteed debentures No.34-4 Jul. 25, 2018 Jul. 25, 2028 2.76 20,000 20,000
Unguaranteed debentures No.36-3 Feb. 22, 2019 Feb. 22, 2029 2.22 60,000 60,000
Unguaranteed debentures No.37-2 Mar. 15, 2019 Mar. 15, 2029 2.16 70,000 70,000
Unguaranteed debentures No.38-1 Jun. 19, 2019 Jun. 19, 2026 1.73 80,000 80,000
Unguaranteed debentures No.38-2 Jun. 19, 2019 Jun. 19, 2029 1.77 120,000 120,000
Unguaranteed debentures No.39-2 Oct. 15, 2019 Oct. 15, 2029 1.67 40,000 40,000
Unguaranteed debentures No.40-2 Dec. 4, 2019 Dec. 4, 2029 1.87 30,000 30,000
Unguaranteed debentures No.41-2 Jan. 16, 2020 Jan. 16, 2025 1.74 — 100,000
Unguaranteed debentures No.41-3 Jan. 16, 2020 Jan. 16, 2030 1.88 40,000 40,000
Subordinated debentures No.1-1 Feb. 18, 2020 Feb. 18, 2030 2.21 370,000 370,000
Subordinated debentures No.1-2 Feb. 18, 2020 Feb. 18, 2035 2.26 30,000 30,000
Unguaranteed debentures No.42-1 May 13, 2020 May 13, 2025 1.59 — 130,000
Unguaranteed debentures No.42-2 May 13, 2020 May 13, 2030 1.78 70,000 70,000
Unguaranteed debentures No.43-2 Jun. 16, 2020 Jun. 16, 2025 1.44 — 110,000
Unguaranteed debentures No.43-3 Jun. 16, 2020 Jun. 16, 2030 1.63 50,000 50,000
Unguaranteed debentures No.44-4 Aug. 11, 2020 Aug. 11, 2027 1.39 20,000 20,000
Unguaranteed debentures No.46-2 Jan. 14, 2021 Jan. 14, 2026 1.43 30,000 30,000
Unguaranteed debentures No.46-3 Jan. 14, 2021 Jan. 14, 2028 1.62 10,000 10,000
Unguaranteed debentures No.46-4 Jan. 14, 2021 Jan. 14, 2031 1.84 100,000 100,000
Unguaranteed debentures No.48-2 Jun. 16, 2022 Jun. 16, 2025 4.27 — 240,000
Unguaranteed debentures No.48-3 Jun. 16, 2022 Jun. 16, 2027 4.34 80,000 80,000
Unguaranteed debentures No.48-4 Jun. 16, 2022 Jun. 16, 2032 4.40 95,000 95,000
Unguaranteed debentures No.49-1 Oct. 31, 2024 Oct. 31, 2025 3.31 80,000 80,000
Unguaranteed debentures No.49-2 Oct. 31, 2024 Oct. 31, 2026 3.30 220,000 220,000
Unguaranteed debentures No.49-3 Oct. 31, 2024 Oct. 31, 2027 3.28 100,000 100,000
Unguaranteed debentures No.50-1 Jan. 24, 2025 Jan. 22, 2027 2.92 200,000 —
Unguaranteed debentures No.50-2 Jan. 24, 2025 Jan. 24, 2028 2.92 100,000 —
Unguaranteed debentures No.51-1 Feb. 25, 2025 Feb. 25, 2027 2.86 50,000 —
Unguaranteed debentures No.51-2 Feb. 25, 2025 Feb. 25, 2028 2.92 250,000 —
Unguaranteed debentures No.52-1 Mar. 24, 2025 Mar. 24, 2027 2.85 60,000 —
Unguaranteed debentures No.52-2 Mar. 24, 2025 Mar. 24, 2028 2.87 170,000 —
Unguaranteed debentures No.53-1 Apr. 28, 2025 Apr. 28, 2027 2.66 130,000 —
Unguaranteed debentures No.53-2 Apr. 28, 2025 Apr. 28, 2028 2.67 220,000 —
Unguaranteed debentures No.54-1 May 26, 2025 May 26, 2027 2.58 100,000 —
Unguaranteed debentures No.54-2 May 26, 2025 May 26, 2028 2.63 200,000 —
Unguaranteed debentures No.55-1 Jul.21, 2025 Jul.21, 2027 2.61 100,000 —
Unguaranteed debentures No.55-2 Jul.21, 2025 Jul.21, 2028 2.68 130,000 —
Unguaranteed debentures No.56 Aug.11, 2025 Aug.11, 2028 2.61 300,000 —
4,375,000 2,965,000
Less: Bond Discounts (4,961 ) (2,968 )
~~W~~ 4,370,039 ~~W~~ 2,962,032

29

KB Financial Group Inc.

Notes to the Separate Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

12.2 Maturities of debentures as of September 30, 2025 and December 31, 2024, are as follows:

(In millions of Korean won) September 30, 2025
Up to<br>3 months 3~6<br>months 6~12<br>months 1~3<br>years Over<br>3 years Total
Debentures in Korean won ~~W~~ 80,000 ~~W~~ 30,000 ~~W~~ 480,000 ~~W~~ 2,710,000 ~~W~~ 1,075,000 ~~W~~ 4,375,000
(In millions of Korean won) December 31, 2024
--- --- --- --- --- --- --- --- --- --- --- --- ---
Up to<br>3 months 3~6<br>months 6~12<br>months 1~3<br>years Over<br>3 years Total
Debentures in Korean won ~~W~~ 100,000 ~~W~~ 480,000 ~~W~~ 100,000 ~~W~~ 1,070,000 ~~W~~ 1,215,000 ~~W~~ 2,965,000

12.3 Changes in debentures based on par value for the nine-month periods ended September 30, 2025 and 2024, are as follows:

(In millions of Korean won) 2025
Beginning Issue Repayment Ending
Debentures in Korean won ~~W~~ 2,965,000 ~~W~~ 2,010,000 ~~W~~ (600,000 ) ~~W~~ 4,375,000
(In millions of Korean won) 2024
--- --- --- --- --- --- --- --- --- ---
Beginning Issue Repayment Ending
Debentures in Korean won(*) ~~W~~ 3,880,000 ~~W~~ — ~~W~~ (1,165,000 ) ~~W~~ 2,715,000
* Exchangeable bonds amounting to 240,000 million were redeemed on February 14, 2024, due to the<br>exercise of exchange right.
--- ---

30

KB Financial Group Inc.

Notes to the Separate Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

13. Net Defined Benefit Liabilities (Assets)

13.1 Defined Benefit Plan

The Company operates defined benefit plans which have the following characteristics:

- The Company has the obligation to pay the agreed benefits to all its current and former employees.<br>
- The Company assumes actuarial risk (that benefits will cost more than expected) and investment risk.<br>
--- ---

The net defined benefit liabilities recognized in the statements of financial position are calculated in accordance with actuarial valuation method using assumptions based on market data and historical data such as discount rate, future salary increase rate, and mortality. Actuarial assumptions may differ from actual results, due to changes in the market conditions, economic trends, and mortality trends.

13.2 Details of the net defined benefit liabilities (assets) as of September 30, 2025 and December 31, 2024, are as follows:

(In millions of Korean won) September 30,<br>2025 December 31,2024
Present value of defined benefit obligation ~~W~~ 22,080 ~~W~~ 21,597
Fair value of plan assets (23,853 ) (24,499 )
Net defined benefit liabilities (assets) ~~W~~ (1,773 ) ~~W~~ (2,902 )

13.3 Details of post-employment benefits recognized in profit or loss for the nine-month periods ended September 30, 2025 and 2024, are as follows:

(In millions of Korean won) 2025 2024
Current service cost ~~W~~ 1,424 ~~W~~ 1,354
Net interest expense (income) on net defined benefit liabilities (78 ) (118 )
Post-employment benefits (*) ~~W~~ 1,346 ~~W~~ 1,236
(*) The gains or losses related to the defined benefit pension plan are fully included in general administrative<br>expenses.
--- ---

31

KB Financial Group Inc.

Notes to the Separate Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

14. Equity

14.1 Share Capital

14.1.1 Details of share capital as of September 30, 2025 and December 31, 2024, are as follows:

(In millions of Korean won) September 30,<br>2025 December 31,<br>2024
Type of share Ordinary share Ordinary share
Number of authorized shares 1,000,000,000 1,000,000,000
Par value per share (in Korean won) ~~W~~ 5,000 ~~W~~ 5,000
Number of issued shares 381,462,103 393,528,423
Share capital * ~~W~~ 2,090,558 ~~W~~ 2,090,558
* Due to the retirement of shares deducted through retained earnings, it is different from the total par value of<br>the shares issued.
--- ---

14.1.2 Changes in shares for the nine-month periods ended September 30, 2025 and 2024, are as follows:

(In number of shares) 2025 2024
Beginning 373,600,719 378,663,825
Increase — 5,000,000
Decrease (11,448,744 ) (6,448,135 )
Ending 362,151,975 377,215,690

32

KB Financial Group Inc.

Notes to the Separate Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

14.2 Hybrid Securities

Details of hybrid securities classified as equity as of September 30, 2025 and December 31, 2024, are as follows:

(In millions of Korean won)

Hybrid securities Issuance date Maturity Interest rate (%)<br>as of<br>September 30, 2025 September 30,<br>2025 December 31,<br>2024
The 1-2^nd^ May 2, 2019 Perpetual bond 3.44 49,881 49,881
The 2-1^st^* May 8, 2020 Perpetual bond 3.30 — 324,099
The 2-2^nd^ May 8, 2020 Perpetual bond 3.43 74,812 74,812
The<br>3-1^st^* Jul. 14, 2020 Perpetual bond 3.17 — 369,099
The 3-2^nd^ Jul. 14, 2020 Perpetual bond 3.38 29,922 29,922
The 4-1^st^ Oct. 20, 2020 Perpetual bond 3.00 433,918 433,918
The 4-2^nd^ Oct. 20, 2020 Perpetual bond 3.28 64,843 64,843
The 5-1^st^ Feb. 19, 2021 Perpetual bond 2.67 419,056 419,056
The 5-2^nd^ Feb. 19, 2021 Perpetual bond 2.87 59,862 59,862
The 5-3^rd^ Feb. 19, 2021 Perpetual bond 3.28 119,727 119,727
The 6-1^st^ May 28, 2021 Perpetual bond 3.20 165,563 165,563
The 6-2^nd^ May 28, 2021 Perpetual bond 3.60 109,708 109,708
The 7-1^st^ Oct. 8, 2021 Perpetual bond 3.57 208,453 208,453
The 7-2^nd^ Oct. 8, 2021 Perpetual bond 3.80 59,834 59,834
The 8-1^st^ Feb. 16, 2022 Perpetual bond 4.00 442,955 442,955
The 8-2^nd^ Feb. 16, 2022 Perpetual bond 4.30 155,626 155,626
The 9-1^st^ May 12, 2022 Perpetual bond 4.68 478,814 478,814
The 9-2^nd^ May 12, 2022 Perpetual bond 4.97 19,906 19,906
The 10-1^st^ Aug. 26, 2022 Perpetual bond 4.90 407,936 407,936
The 10-2^nd^ Aug. 26, 2022 Perpetual bond 5.15 70,819 70,819
The 10-3^rd^ Aug. 26, 2022 Perpetual bond 5.30 19,944 19,944
The 11-1^st^ Feb. 3, 2023 Perpetual bond 4.90 548,666 548,666
The 11-2^nd^ Feb. 3, 2023 Perpetual bond 5.03 49,871 49,871
The 12^th^ Feb. 28, 2024 Perpetual bond 4.39 399,045 399,045
The 13^th^ Jan. 22, 2025 Perpetual bond 4.00 404,013 —
~~W~~ 4,793,174 ~~W~~ 5,082,359
* The 2-1 and 3-1 Subordinated<br>Contingent Capital Securities of KB Financial Group, amounting to ~~W~~325,000 million and ~~W~~370,000 million, respectively, were fully redeemed through the exercise of call options on May 8, 2025 and<br>July 14, 2025.
--- ---

The above hybrid securities are early redeemable by the Company after 5 or 7 or 10 years from the issuance date.

33

KB Financial Group Inc.

Notes to the Separate Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

14.3 Capital Surplus

Details of capital surplus as of September 30, 2025 and December 31, 2024, are as follows:

(In millions of Korean won) September 30,<br>2025 December 31,<br>2024
Paid-in capital in excess of par value ~~W~~ 13,190,275 ~~W~~ 13,190,275
Other capital surplus 1,460,263 1,473,579
Gains on sales of treasury shares 90,621 90,621
~~W~~ 14,741,159 ~~W~~ 14,754,475

14.4 Accumulated Other Comprehensive Income (Loss)

Details of accumulated other comprehensive income (loss) as of September 30, 2025 and December 31, 2024, are as follows:

(In millions of Korean won) September 30,<br>2025 December 31,<br>2024
Remeasurements of net defined benefit liabilities ~~W~~ (8,184 ) ~~W~~ (8,316 )

14.5 Retained Earnings

14.5.1 Details of retained earnings as of September 30, 2025 and December 31, 2024, are as follows:

(In millions of Korean won) September 30,<br>2025 December 31,<br>2024
Legal reserves (*) ~~W~~ 1,436,869 ~~W~~ 1,219,810
Voluntary reserves 982,000 982,000
Regulatory reserve for credit losses 5,411 4,061
Unappropriated retained earnings 2,219,105 2,099,671
~~W~~ 4,643,385 ~~W~~ 4,305,542

(*) With respect to the allocation of net profit earned in a fiscal term, the Company must set aside in its legal reserve an amount equal to at least 10% of its profit after tax as reported in the financial statements, each time it pays dividends on its net profits earned until its legal reserve reaches the aggregate amount of its share capital in accordance with Article 53 of the Financial Holding Company Act. The reserve is not available for the payment of cash dividends, but may be transferred to share capital, or used to reduce accumulated deficit.

34

KB Financial Group Inc.

Notes to the Separate Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

14.5.2 Regulatory reserve for credit losses

Measurement and disclosure of regulatory reserve for credit losses are required in accordance with Articles 26 through 28 of the Regulations on Supervision of Financial Holding Companies.

14.5.2.1 Details of regulatory reserve for credit losses as of September 30, 2025 and December 31, 2024, are as follows:

(In millions of Korean won) September 30,2025 December 31,2024
Amounts before appropriation ~~W~~ 5,411 ~~W~~ 4,061
Amounts estimated to be appropriated (reversed) 2,964 1,350
~~W~~ 8,375 ~~W~~ 5,411

14.5.2.2 Regulatory reserve for credit losses estimated to be appropriated (reversed) and adjusted profit after provision (reversal) of regulatory reserve for credit losses for the three-month and nine-month periods ended September 30, 2025 and 2024, are as follows:

(In millions of Korean won, except for per share amounts) 2025 2024
Threemonths Ninemonths Threemonths Ninemonths
Regulatory reserve for credit losses estimated to be appropriated (reversed) ~~W~~ 2,714 ~~W~~ 2,964 ~~W~~ 273 ~~W~~ 1,107
Adjusted profit (loss) after provision (reversal) of regulatory reserve for credit losses ^1,2^ (80,053 ) 2,116,676 (60,437 ) 2,048,258
Adjusted basic earnings (loss) per share after provision (reversal) of regulatory reserve for<br>credit losses ^1^ (220 ) 5,766 (160 ) 5,389
Adjusted diluted earnings (loss) per share after provision (reversal) of regulatory reserve for<br>credit losses ^1^ (218 ) 5,711 (158 ) 5,324
^1^ Adjusted profit (loss) after provision (reversal) of regulatory reserve for credit losses is not based on<br>Korean IFRS. It is calculated by reflecting provision (reversal) of regulatory reserve for credit losses before tax to the net profit for the period.
--- ---
^2^ After deducting dividends on hybrid securities
--- ---

35

KB Financial Group Inc.

Notes to the Separate Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

14.6 Treasury Shares

Changes in treasury shares for the nine-month periods ended September 30, 2025 and 2024, are as follows:

(In millions of Korean won except for number of shares)

2025
Beginning Acquisition Disposal Retirement Ending
Number of treasury shares 19,927,704 11,448,744 — (12,066,320 ) 19,310,128
Carrying amount ~~W~~ 1,236,060 ~~W~~ 1,044,851 ~~W~~ — ~~W~~ (814,522 ) ~~W~~ 1,466,389
2024
Beginning Acquisition Disposal Retirement Ending
Number of treasury shares * 24,847,247 6,448,135 (5,000,000 ) (9,982,649 ) 16,312,733
Carrying amount ~~W~~ 1,165,837 ~~W~~ 490,679 ~~W~~ (234,600 ) ~~W~~ (515,177 ) ~~W~~ 906,739
* 5 million treasury shares deposited at the Korea Securities Depository for the exchange of exchangeable<br>bonds were disposed of on February 14, 2024, due to the exercise of exchange right.
--- ---

On May 15, 2025, the Company retired 4,575,874 shares (~~W~~400,000 million), 1,089,097 shares (~~W~~100,000 million) and 6,401,349 shares (~~W~~520,000 million) of treasury shares, which were acquired in accordance with the resolutions of the Board of Directors on July 23, 2024, October 24, 2024, and February 5, 2025, respectively.

In addition, the Company plans to retire 3,047,395 shares (~~W~~300,000 million) of treasury shares on January 15, 2026, which were acquired in accordance with the resolution of the Board of Directors on April 24, 2025, and to acquire treasury shares amounting to ~~W~~660,000 million through a trust agreement by January 9, 2026, in accordance with the resolution of the Board of Directors on July 24, 2025, which will be retired after the termination of the trust agreement.

15. Dividends

The annual dividends to the shareholders of the Company for the year ended December 31, 2024 amounting to ~~W~~ 298,285 million (~~W~~ 804 per share) were declared at the annual general shareholders’ meeting on March 26, 2025 and were paid on April 15, 2025.

In addition, the Board of Directors resolved on April 24, 2025 to declare a quarterly dividend of ~~W~~334,339 million (~~W~~912 per share) to shareholders of record as of May 12, 2025, which was paid on May 22, 2025. On July 24, 2025, the Board of Directors also resolved to declare a quarterly dividend of ~~W~~334,651 million (~~W~~920 per share) to shareholders of record as of August 11, 2025, which was paid on August 22, 2025. Meanwhile, the annual dividends to the shareholders of the Company for the year ended December 31, 2023 and the quarterly dividend paid in 2024 were ~~W~~ 587,006 million (~~W~~ 1,530 per share) and ~~W~~ 899,972 million, respectively.

36

KB Financial Group Inc.

Notes to the Separate Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

16. Net Interest Expense

Details of interest income, interest expense, and net interest expense for the three-month and nine-month periods ended September 30, 2025 and 2024, are as follows:

(In millions of Korean won) 2025 2024
Three months Nine months Three months Nine months
Interest income
Due from financial institutions ~~W~~ 1,851 ~~W~~ 10,489 ~~W~~ 4,174 ~~W~~ 14,099
Loans measured at amortized cost 5,370 10,347 4,801 14,207
Loans measured at fair value through profit or loss 737 2,595 714 2,117
Others 262 865 356 1,985
8,220 24,296 10,045 32,408
Interest expense
Borrowings 802 12,581 8,610 16,414
Debentures 27,534 74,642 16,766 57,340
Others 7 25 11 33
28,343 87,248 25,387 73,787
Net interest expense ~~W~~ (20,123 ) ~~W~~ (62,952 ) ~~W~~ (15,342 ) ~~W~~ (41,379 )

17. Net Fee and Commission Expense

Details of fee and commission income, fee and commission expense, and net fee and commission expense for the three-month and nine-month periods ended September 30, 2025 and 2024, are as follows:

(In millions of Korean won) 2025 2024
Three months Nine months Three months Nine months
Fee and commission income
Fees earned in Korean won ~~W~~ 483 ~~W~~ 1,473 ~~W~~ 387 ~~W~~ 1,381
Fee and commission expense
Fees paid in Korean won 1,844 5,931 1,434 5,811
Fees paid in foreign currency 115 361 146 329
1,959 6,292 1,580 6,140
Net fee and commission expense ~~W~~ (1,476 ) ~~W~~ (4,819 ) ~~W~~ (1,193 ) ~~W~~ (4,759 )

37

KB Financial Group Inc.

Notes to the Separate Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

18. Net Gains or Losses on Financial Instruments at Fair value through Profit or Loss

Net gains or losses on financial instruments at fair value through profit or loss include dividend income, gains or losses arising from changes in fair value, and gains or losses arising from sales and redemptions.

Details of net gains or losses on financial assets at fair value through profit or loss for the three-month and nine-month periods ended September 30, 2025 and 2024, are as follows:

(In millions of Korean won) 2025 2024
Three months Nine months Three months Nine months
Gains on financial instruments at fair value through profit or loss
Dividend income from financial assets at fair value through profit or loss ~~W~~ 16,754 ~~W~~ 49,778 ~~W~~ 16,642 ~~W~~ 43,648
Gains on valuation of financial assets at fair value through profit or loss 1,527 14,539 10,179 26,359
Gains on disposal of financial assets at fair value through profit or loss — 1,033 — 148
Other income from financial assets at fair value through profit or loss — 1,001 — —
18,281 66,351 26,821 70,155
Losses on financial instruments at fair value through profit or loss
Losses on valuation of financial assets at fair value through profit or loss 41 41 — —
Losses on disposal of financial assets at fair value through profit or loss — 158 — —
41 199 — —
Net gains on financial instruments at fair value through profit or loss ~~W~~ 18,240 ~~W~~ 66,152 ~~W~~ 26,821 ~~W~~ 70,155

38

KB Financial Group Inc.

Notes to the Separate Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

19. Net Other Operating Income and Expenses

Details of other operating income and expenses for the three-month and nine-month periods ended September 30, 2025 and 2024, are as follows:

(In millions of Korean won) 2025 2024
Three months Nine months Three months Nine months
Other operating income
Dividend income from subsidiaries ~~W~~ — ~~W~~ 2,355,586 ~~W~~ — ~~W~~ 2,243,250
— 2,355,586 — 2,243,250
Net other operating income ~~W~~ — ~~W~~ 2,355,586 ~~W~~ — ~~W~~ 2,243,250

20. General and Administrative Expenses

20.1 Details of general and administrative expenses for the three-month and nine-month periods ended September 30, 2025 and 2024, are as follows:

(In millions of Korean won) 2025 2024
Three months Nine months Three months Nine months
Expenses related to employee
Employee benefits - salaries ~~W~~ 7,982 ~~W~~ 24,092 ~~W~~ 8,416 ~~W~~ 25,657
Employee benefits - others 1,660 3,774 1,112 3,450
Post-employment benefits - defined benefit plans 449 1,346 409 1,236
Post-employment benefits - defined contribution plans — — — 4
Share-based payments 3,460 14,111 2,783 11,729
13,551 43,323 12,720 42,076
Depreciation and amortization 1,321 4,120 1,410 4,325
Other general and administrative expenses
Travel 430 1,127 158 528
Communications 257 719 222 796
Tax and dues 146 566 50 400
Publication 87 224 71 230
Rental expense 550 1,662 592 1,729
Vehicle 34 85 39 99
Service fees 3,874 13,604 3,912 11,667
Advertising 171 575 40 547
Training 335 783 392 867
Others 2,371 6,672 2,239 6,611
8,255 26,017 7,715 23,474
~~W~~ 23,127 ~~W~~ 73,460 ~~W~~ 21,845 ~~W~~ 69,875

39

KB Financial Group Inc.

Notes to the Separate Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

20.2 Share-based Payments

Share-based payments plans for executives and employees of the Company and its subsidiaries as of September 30, 2025, are as follows:

20.2.1 Stock grants linked to long-term performance

(In number of shares) Grant date Number of grantedshares ^1^ Vesting conditions ^2^
KB Financial Group Inc.
Series 38 Nov. 21, 2023 55,547 Services fulfillment, market performance ^3^ 35%, and<br>non-market performance ^5^ 65%
Series 39 Jan. 1, 2024 47,839 Services fulfillment, market performance ^3^ 0~30%, and<br>non-market performance ^4^ 70~100%
Series 40 Feb. 1, 2024 511 Services fulfillment, market performance ^3^ 30%, and<br>non-market performance ^4^ 70%
Series 41 Apr. 6, 2024 6,450 Services fulfillment, market performance ^3^ 30%, and<br>non-market performance ^4^ 70%
Series 43 Jan. 1, 2025 37,073 Services fulfillment, market performance ^3^ 30%, and<br>non-market performance ^4^ 70%
Series 44 Apr. 7, 2025 5,540 Services fulfillment, market performance ^3^ 30%, and<br>non-market performance ^4^ 70%
Deferred grant in 2015 1,063 Satisfied
Deferred grant in 2020 40 Satisfied
Deferred grant in 2022 13,239 Satisfied
Deferred grant in 2023 59,942 Satisfied
Deferred grant in 2024 25,541 Satisfied
252,785
Kookmin Bank
Series 96 Jan. 1, 2024 220,113 Services fulfillment, market performance ^3^ 0~30%,<br>and<br>non-market performance ^4^ 70~100%<br> <br>Services<br>fulfillment, market performance ^3^ 30%, and<br>non-market performance ^6^ 70%
Series 97 Feb. 1, 2024 2,045 Services fulfillment, market performance ^3^ 0~30%, and<br>non-market performance ^4^ 70~100%
Series 98 Apr. 22, 2024 2,959 Services fulfillment, market performance ^3^ 0~30%, and<br>non-market performance ^4^ 70~100%
Series 99 Jul. 5, 2024 4,926 Services fulfillment, market performance ^3^ 0~30%, and<br>non-market performance ^4^ 70~100%
Series 101 Aug. 24, 2024 4,453 Services fulfillment, market performance ^3^ 0~30%, and<br>non-market performance ^4^ 70~100%
Series 102 Jan. 1, 2025 179,315 Services fulfillment, market performance ^3^ 0~30%,<br>and<br>non-market performance ^4^ 70~100%<br> <br>Services<br>fulfillment, market performance ^3^ 30%, and<br>non-market performance ^6^ 70%
Series 103 Jan. 9, 2025 4,589 Services fulfillment, market performance ^3^ 0~30%, and<br>non-market performance ^4^ 70~100%
Deferred grant in 2022 29,628 Satisfied
Deferred grant in 2023 93,891 Satisfied
Deferred grant in 2024 118,288 Satisfied
660,207

40

KB Financial Group Inc.

Notes to the Separate Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

20.2.1 Stock grants linked to long-term performance (cont’d)

(In number of shares) Grant date Number of grantedshares ^1^ Vesting conditions ^2^
Other subsidiaries
Stock granted in 2012 160
Stock granted in 2013 219
Stock granted in 2014 1,028
Stock granted in 2015 1,155
Stock granted in 2017 3,955
Stock granted in 2018 11,044
Stock granted in 2019 13,255
Stock granted in 2020 25,783 Services fulfillment,
Stock granted in 2021 18,692 market performance ^3^ 0~50%, and
Stock granted in 2022 79,498 non-market performance ^4^ 50~100%
Stock granted in 2023 119,878
Stock granted in 2024 453,356
Stock granted in 2025 253,600
981,623
1,894,615
^1^ Granted shares represent the total number of shares initially granted to executives and employees who have<br>residual shares as of September 30, 2025 (Deferred grants are residual shares vested as of September 30, 2025).
--- ---
^2^ Executives and employees were given the right of choice about the timing of the deferred payment (after the<br>date of retirement), payment ratio, and payment period. Accordingly, a certain percentage of the granted shares is deferred for up to five years after the date of retirement after the deferred grant has been confirmed.
--- ---
^3^ Relative TSR (Total Shareholder Return): [(Fair value at the end of the contract - Fair value at the beginning<br>of the contract) + (Total amount of dividend per share paid during the contract period)] / Fair value at the beginning of the contract
--- ---
^4^ Performance results of company and employee
--- ---
^5^ EPS (Earnings Per Share), Asset Quality, HCROI (Human Capital Return On Investment), and Non-bank segment profit
--- ---
^6^ EPS, Asset Quality
--- ---

The stock grant linked to long-term performance is an incentive plan that sets, on grant date, the maximum number of shares that can be awarded. The actual number of shares to be granted is determined in accordance with achievement of pre-set performance targets over the vesting period.

41

KB Financial Group Inc.

Notes to the Separate Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

20.2.2 Stock grants linked to short-term performance

(In number of shares) Estimated number of vestedshares * Vesting<br><br><br>conditions
KB Financial Group Inc.
Stock granted in 2015 541 Satisfied
Stock granted in 2016 1,558 Satisfied
Stock granted in 2020 78 Satisfied
Stock granted in 2022 14,653 Satisfied
Stock granted in 2023 27,960 Satisfied
Stock granted in 2024 23,462 Satisfied
Stock granted in 2025 12,671 Proportional to service period
Kookmin Bank
Stock granted in 2022 55,061 Satisfied
Stock granted in 2023 118,700 Satisfied
Stock granted in 2024 97,412 Satisfied
Stock granted in 2025 47,143 Proportional to service period
Other subsidiaries
Stock granted in 2015 1,289 Satisfied
Stock granted in 2016 7,290 Satisfied
Stock granted in 2017 20,121 Satisfied
Stock granted in 2018 51,583 Satisfied
Stock granted in 2019 41,130 Satisfied
Stock granted in 2020 48,423 Satisfied
Stock granted in 2021 81,625 Satisfied
Stock granted in 2022 202,086 Satisfied
Stock granted in 2023 409,430 Satisfied
Stock granted in 2024 421,073 Satisfied
Stock granted in 2025 74,653 Proportional to service period
1,757,942
* Executives and employees were given the right of choice about the timing of the deferred payment (after the<br>date of retirement), payment ratio, and payment period. Accordingly, a certain percentage of the granted shares is deferred for up to five years after the date of retirement after the deferred grant has been confirmed.
--- ---

Share-based payments arrangement for the subsidiaries was transferred to the Company in 2010, and the related compensation cost paid to the executives and employees of the subsidiaries is reimbursed by the subsidiaries. The accrued expenses for share-based payments as of September 30, 2025 and December 31, 2024, are ~~W~~ 346,754 million and ~~W~~ 295,867 million, respectively, and the receivables to be reimbursed by the subsidiaries for the compensation costs as of September 30, 2025 and December 31, 2024, are ~~W~~ 316,234 million and ~~W~~ 270,558 million, respectively. Compensation costs from share-based payments amounting to ~~W~~ 14,111 million and ~~W~~ 11,729 million were recognized for the nine-month periods ended September 30, 2025 and 2024, respectively.

42

KB Financial Group Inc.

Notes to the Separate Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

21. Income Tax Benefit (Expense)

Details of income tax benefit (expense) for the nine-month periods ended September 30, 2025 and 2024, are as follows:

(In millions of Korean won) 2025 2024
Income tax payable ~~W~~ — ~~W~~ —
Changes in deferred tax assets and liabilities (1,671 ) 1,599
Origination and reversal of temporary differences (1,671 ) 1,599
Income tax recognized directly in equity 47 211
Remeasurements of net defined benefit liabilities 47 22
Consideration for exchange right of exchangeable bonds — 189
Others (5,148 ) —
Income tax benefit (expense) ~~W~~ (6,772 ) ~~W~~ 1,810

22. Earnings per Share

22.1 Basic Earnings per Share

Basic earnings per share is calculated from the earnings attributable to ordinary shares.

22.1.1 Weighted average number of ordinary shares outstanding

(In number of shares) 2025 2024
Three months Nine months Three months Nine months
Number of issued ordinary shares 381,462,103 381,462,103 393,528,423 393,528,423
Number of treasury shares* (19,310,128 ) (19,310,128 ) (16,312,733 ) (16,312,733 )
Weighted average number of ordinary shares outstanding 363,482,627 367,125,407 378,880,364 380,100,693
* The effective dates of treasury shares that were deducted through retirement for the nine-month periods ended<br>September 30, 2025 and 2024, are May 15, 2025 and August 14, 2024.
--- ---

22.1.2 Basic earnings per share

(In Korean won except for number of shares) 2025
Three months Nine months
Profit (loss) for the period ~~W~~ (26,337,306,488 ) ~~W~~ 2,273,961,667,905
Deduction: Dividends on hybrid securities (51,002,825,000 ) (154,320,975,000 )
Profit (loss) attributable to the ordinary equity holders (A) (77,340,131,488 ) 2,119,640,692,905
Weighted average number of ordinary shares outstanding (B) 363,482,627 367,125,407
Basic earnings (loss) per share (A/B) ~~W~~ (213 ) ~~W~~ 5,774
(In Korean won except for number of shares) 2024
Three months Nine months
Profit (loss) for the period ~~W~~ (10,529,942,287 ) ~~W~~ 2,199,528,961,923
Deduction: Dividends on hybrid securities (49,634,075,000 ) (150,164,725,000 )
Profit (loss) attributable to the ordinary equity holders (A) (60,164,017,287 ) 2,049,364,236,923
Weighted average number of ordinary shares outstanding (B) 378,880,364 380,100,693
Basic earnings (loss) per share (A/B) ~~W~~ (159 ) ~~W~~ 5,392

43

KB Financial Group Inc.

Notes to the Separate Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

22.2 Diluted Earnings per Share

Diluted earnings per share is calculated through increasing the weighted average number of ordinary shares outstanding by the weighted average number of additional ordinary shares that would have been outstanding assuming the conversion of all dilutive potential ordinary shares. The Company has dilutive potential ordinary shares such as stock grants and ordinary share exchange right of exchangeable bonds.

A calculation is done to determine the number of shares that could have been acquired at fair value (determined as the average market share price for the year) based on the monetary value of stock grants. The number of shares calculated above is compared with the number of shares that would have been issued assuming the settlement of stock grants.

Exchangeable bonds are included in potential ordinary shares from the exercisable date of the exchange right, and interest expense after tax for the period is added to profit for diluted earnings per share.

22.2.1 Adjusted profit for diluted earnings per share

(In Korean won) 2025
Three months Nine months
Profit (loss) attributable to the ordinary equity holders * ~~W~~ (77,340,131,488 ) ~~W~~ 2,119,640,692,905
Adjustment:
Interest expense on exchangeable bonds — —
Adjusted profit (loss) for diluted earnings (loss) per share ~~W~~ (77,340,131,488 ) ~~W~~ 2,119,640,692,905
(In Korean won) 2024
--- --- --- --- --- ---
Three months Nine months
Profit (loss) attributable to the ordinary equity holders * ~~W~~ (60,164,017,287 ) ~~W~~ 2,049,364,236,923
Adjustment:
Interest expense on exchangeable bonds — 306,631,690
Adjusted profit (loss) for diluted earnings (loss) per share ~~W~~ (60,164,017,287 ) ~~W~~ 2,049,670,868,613
* The amount is after deducting dividends on hybrid securities.
--- ---

22.2.2 Weighted average number of ordinary shares outstanding for diluted earnings per share

(In number of shares) 2025 2024
Three months Nine months Three months Nine months
Weighted average number of ordinary shares outstanding 363,482,627 367,125,407 378,880,364 380,100,693
Adjustment:
Stock grants 3,282,194 3,487,746 3,633,208 3,848,545
Exchangeable bonds — — — 802,920
Adjusted weighted average number of ordinary shares outstanding for diluted earnings per<br>share 366,764,821 370,613,153 382,513,572 384,752,158

44

KB Financial Group Inc.

Notes to the Separate Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

22.2.3 Diluted earnings per share

(In Korean won except for number of shares) 2025
Three months Nine months
Adjusted profit (loss) for diluted earnings (loss) per share ~~W~~ (77,340,131,488 ) ~~W~~ 2,119,640,692,905
Adjusted weighted average number of ordinary shares outstanding for diluted earnings per<br>share 366,764,821 370,613,153
Diluted earnings (loss) per share ~~W~~ (211 ) ~~W~~ 5,719
(In Korean won except for number of shares) 2024
--- --- --- --- --- ---
Three months Nine months
Adjusted profit (loss) for diluted earnings (loss) per share ~~W~~ (60,164,017,287 ) ~~W~~ 2,049,670,868,613
Adjusted weighted average number of ordinary shares outstanding for diluted earnings (loss) per<br>share 382,513,572 384,752,158
Diluted earnings (loss) per share ~~W~~ (157 ) ~~W~~ 5,327

23. Statement of Cash Flows

23.1 Details of cash and cash equivalents as of September 30, 2025 and December 31, 2024, are as follows:

(In millions of Korean won) September 30,<br>2025 December 31,<br>2024
Due from financial institutions ~~W~~ 633,461 ~~W~~ 398,391
Deduction:
Restricted due from financial institutions (3 ) (3 )
Due from financial institutions with original maturities over three months (40,000 ) (80,000 )
(40,003 ) (80,003 )
~~W~~ 593,458 ~~W~~ 318,388

23.2 Cash inflows and outflows from income tax, interest, and dividends for the nine-month periods ended September 30, 2025 and 2024, are as follows:

(In millions of Korean won) Activity 2025 2024
Income tax paid Operating ~~W~~ 5,482 ~~W~~ 5,741
Interest received Operating 22,147 28,522
Interest paid Operating 68,512 93,419
Dividends received Operating 2,405,508 2,292,312
Dividends paid Financing 1,121,596 1,337,256

45

KB Financial Group Inc.

Notes to the Separate Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

24. Contingent Liabilities and Commitments

24.1 Commitments made with financial institutions as of September 30, 2025 and December 31, 2024, are as follows:

(In millions of Korean won) September 30, 2025 December 31, 2024
Amount ofcommitments Amount<br>borrowed Amount ofcommitments Amountborrowed
General loan Hana Bank ~~W~~ 200,000 ~~W~~ — ~~W~~ 200,000 ~~W~~ —
General loan Shinhan Bank 200,000 — 200,000 —
General loan NongHyup Bank ~~W~~ 300,000 — ~~W~~ 300,000 ~~W~~ —

24.2 Other Matters (including litigation)

The Company has no ongoing lawsuits in which it is a defendant as of September 30, 2025.

25. Related Party Transactions

According to Korean IFRS No.1024, the Company includes subsidiaries and key management personnel (including family members) in the scope of related parties. The Company discloses balances (receivables and payables) and other amounts arising from transactions with related parties in the notes to the financial statements. Refer to Note 9 for details of subsidiaries. Key management personnel include the executives of the Company, their close family members, and the companies where the executives and/or their close family members have control or joint control.

25.1 Details of significant profit or loss arising from transactions with related parties for the nine-month periods ended September 30, 2025 and 2024 are as follows:

(In millions of Korean won)
Subsidiaries Profit or loss 2025 2024
Kookmin Bank Interest income ~~W~~ 9,580 ~~W~~ 10,524
Fee and commission income 886 981
Net other operating income ^1^ 1,625,579 1,467,896
General and administrative expenses 9,538 8,781
KB Securities Co., Ltd. Interest expense 66 —
Fee and commission income 51 70
Net gains on financial assets at fair value through profit or loss 26,225 34,879
Net other operating income ^1^ 280,000 150,000
General and administrative expenses 851 544
KB Insurance Co., Ltd. Fee and commission income 53 75
General and administrative expenses 1,720 1,313
Net other operating income ^1^ 299,982 249,974
KB Kookmin Card Co., Ltd. Fee and commission income 18 17
Net other operating income ^1^ — 185,380
General and administrative expenses 1,014 289
Net non-operating income 3 3
KB Life Insurance Co., Ltd. Fee and commission income 12 27
Net other operating income ^1^ 130,000 150,000

46

KB Financial Group Inc.

Notes to the Separate Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

25.1 Details of significant profit or loss arising from transactions with related parties for the nine-month periods ended September 30, 2025 and 2024 are as follows: (cont’d)

(In millions of Korean won)
Subsidiaries Profit or loss 2025 2024
General and administrative expenses ~~W~~ 638 ~~W~~ 745
KB Asset Management Co., Ltd. Net other operating income ^1^ 20,000 40,000
General and administrative expenses 125 58
KB Capital Co., Ltd Interest income — 3,708
Fee and commission income 10 9
Net gains on financial assets at fair value through profit or loss 26,901 26,832
General and administrative expenses 101 91
Provision for credit losses — 10
KB Real Estate Trust. Co., Ltd. Interest income — 3,148
Net gains on financial assets at fair value through profit or loss 10,498 5,441
General and administrative expenses 164 22
Provision for credit losses — (133 )
KB Savings Bank Co., Ltd. Interest income 2,811 3,820
Fee and commission income 1 1
Net gains on financial assets at fair value through profit or loss (38 ) 2,855
KB Investment Co., Ltd. Interest income 7,697 7,206
Provision for credit losses (26 ) (1 )
KB Data Systems Co., Ltd. General and administrative expenses 2,435 2,887
^1^ Net other operating income includes dividend income from subsidiaries.
--- ---

25.2 Details of significant outstanding balances of receivables and payables arising from transactions with related parties as of September 30, 2025 and December 31, 2024, are as follows:

(In millions of Korean won)
Subsidiaries Assets or liabilities September 30,<br>2025 December 31,2024
Kookmin Bank Cash and due from financial institutions ~~W~~ 335,106 ~~W~~ 316,781
Other assets 915,102 468,023
Other liabilities 7,522 20
Property and equipment 434 237
KB Securities Co., Ltd. Financial assets at fair value through profit or loss 547,008 540,683
Other assets 116,876 100,494
Other liabilities 72,219 —
KB Insurance Co., Ltd. Other assets 38,597 143,520
Other liabilities 61,567 46
KB Kookmin Card Co., Ltd. Other assets 79,746 78,634
Other liabilities 2,307 895
KB Life Insurance Co., Ltd. Other assets 14,217 14,235
Other liabilities 81,492 69,132
KB Asset Management Co., Ltd. Other assets 35,135 25,549
Other liabilities 125 —
KB Capital Co., Ltd. Financial assets at fair value through profit or loss 501,251 495,454
Other assets 40,709 48,285
Other liabilities 106 11

47

KB Financial Group Inc.

Notes to the Separate Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

25.2 Details of significant outstanding balances of receivables and payables arising from transactions with related parties as of September 30, 2025 and December 31, 2024, are as follows: (cont’d)

(In millions of Korean won)
Subsidiaries Assets or liabilities September 30,<br>2025 December 31,2024
KB Real Estate Trust Co., Ltd. Financial assets at fair value through profit or loss ~~W~~ 155,105 ~~W~~ 153,382
Other assets 11,744 4,431
Other liabilities 164 —
KB Savings Bank Co., Ltd. Cash and due from financial institutions 80,057 80,000
Financial assets at fair value through profit or loss 55,259 53,951
Other assets 3,820 3,960
Other liabilities 491 808
KB Investment Co., Ltd. Loans measured at amortized cost (gross amount) 350,000 360,000
Allowances for credit losses 919 946
Other assets 9,027 6,794
Other liabilities — 1,244
KB Data Systems Co., Ltd. Property and equipment — 76
Intangible assets 371 427
Other assets 5,261 4,274
Other liabilities 236 250

25.3 Right-of-use assets and lease liabilities with related parties as of September 30, 2025 and December 31, 2024, are as follows:

(In millions of Korean won) September 30,<br>2025 December 31,2024
Subsidiary Kookmin Bank Right-of-use assets ~~W~~ 434 ~~W~~ 237

25.4 Credit card commitments provided from related parties as of September 30, 2025 and December 31, 2024, are as follows:

(In millions of Korean won) September 30,<br>2025 December 31,2024
Subsidiary KB Kookmin Card Co., Ltd. Lines of credit for<br>credit card ~~W~~ 3,000 ~~W~~ 3,000

25.5 Share transactions with related parties for the nine-month periods ended September 30, 2025 and 2024, are as follows:

(In millions of Korean won) 2025 2024
Subsidiary KB Real Estate Trust Co., Ltd. Acquisition of hybrid securities ~~W~~ — ~~W~~ 150,000
KB Real Estate Trust Co., Ltd. Issuance of ordinary shares ~~W~~ — ~~W~~ 150,000

48

KB Financial Group Inc.

Notes to the Separate Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

25.6 Details of significant lending transactions with related parties for the nine-month periods ended September 30, 2025 and 2024, are as follows:

(In millions of Korean won) 2025
Beginning Loan Collection Ending
Subsidiary KB Investment Co., Ltd. ~~W~~ 360,000 ~~W~~ — ~~W~~ (10,000 ) ~~W~~ 350,000
KB Savings Bank Co., Ltd. ^1^ ~~W~~ 70,000 — — ~~W~~ 70,000
(In millions of Korean won) 2024
Beginning Loan Collection Ending
Subsidiary KB Investment Co., Ltd. ~~W~~ 360,000 ~~W~~ — ~~W~~ — ~~W~~ 360,000
KB Capital Co., Ltd. 200,000 — — 200,000
KB Savings Bank Co., Ltd. ^1^ 70,000 — — 70,000
KB Real Estate Trust Co., Ltd. ~~W~~ 50,000 105,000 (155,000 ) ~~W~~ —
^1^ Par value of subordinated bond issued by KB Savings Bank Co., Ltd. The difference between par value and fair<br>value at the acquisition date was accounted for as investments in subsidiaries.
--- ---

25.7 Details of compensation to key management personnel for the nine-month periods ended September 30, 2025 and 2024, are as follows:

(In millions of Korean won) 2025
Short-term<br>employeebenefits Post-employmentbenefits Share-basedpayments Total
Registered directors<br><br><br>(executive) ~~W~~ 875 ~~W~~ 31 ~~W~~ 3,569 ~~W~~ 4,475
Registered directors<br><br><br>(non-executive) 517 — — 517
Non-registered directors 4,188 180 10,542 14,910
~~W~~ 5,580 ~~W~~ 211 ~~W~~ 14,111 ~~W~~ 19,902
(In millions of Korean won) 2024
Short-term<br>employeebenefits Post-employmentbenefits Share-basedpayments Total
Registered directors (executive) ~~W~~ 696 ~~W~~ — ~~W~~ 2,654 ~~W~~ 3,350
Registered directors<br><br><br>(non-executive) 510 — — 510
Non-registered directors 4,016 41 9,075 13,132
~~W~~ 5,222 ~~W~~ 41 ~~W~~ 11,729 ~~W~~ 16,992

49

KB Financial Group Inc.

Notes to the Separate Interim Financial Statements

September 30, 2025 and 2024 (Unaudited), and December 31, 2024

26. Events After the Reporting Period

According to the resolution of the Board of Directors on October 30, 2025, a quarterly dividend of ~~W~~930 per share with a record date of November 14, 2025, was declared. The Company’s financial statements as of September 30, 2025, do not reflect this dividend payable.

50

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