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United Microelectronics Corp 6-K, filed Apr 28, 2021

United Microelectronics Corp (UMC)

6-K 2021-04-28 For: 2021-04-28
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Added on April 10, 2026

About this 6-K

United Microelectronics Corp filed this 6-K on April 28, 2021.

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

REPORT OF FOREIGN ISSUER

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

OF THE SECURITIES EXCHANGE ACT OF 1934

April 28, 2021

(Commission File Number: 001-15128)

United Microelectronics Corporation

(Translation of registrant’s name into English)

No.3 Li Hsin Road II

Science Park

Hsinchu, Taiwan, R.O.C.

(Address of principal executive office)

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

Form 20-F  ☒      Form 40-F  ☐

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101 (b) (1): ☐

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101 (b) (7): ☐

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, thereto duly authorized.

United Microelectronics Corporation
By: Chitung Liu
Name: Chitung Liu
Title: CFO

Date: April 28, 2021

EXHIBIT INDEX

Exhibit Description
99 6K on 04/28/2021

3

umc-ex99_7.htm

                                                                        www.umc.com

Exhibit

Exhibit            Description

99.1                 Announcement on 2021/04/12: To announce related materials on acquisition of machinery and equipment

99.2                 Announcement on 2021/04/13: Supplement to the unsecured straight corporate bond issuance authorized by the Board of Director resolution passed on February 24th, 2021

99.3                 Announcement on 2021/04/14: UMC will convene Q1 2021 Investor Conference

99.4                 Announcement on 2021/04/23: To announce related materials on acquisition of machinery and equipment

99.5                 Announcement on 2021/04/28: Announcement of board meeting approved the consolidated financial statements for the first quarter of 2021

99.6                 Announcement on 2021/04/28: The board meeting approved capital budget execution

99.7                 Announcement on 2021/04/28: The Board of Directors Approved the Cancellation of Restricted Shares to Employees Stock Awards

99.8                 Announcement on 2021/04/28: The Board of Directors resolved to release the managerial officer from non-competition restrictions

99.9                 Announcement on 2021/04/28: UMC’s donation to National Tsing Hua University

99.10               Announcement on 2021/04/28: The board of directors approved the investment in TGVest Asia Partners II(Taiwan), L.P.

99.11               Announcement on 2021/04/28: UMC announced its operating results for the first quarter of 2021

99.12               Announcement on 2021/04/28: The Board of Directors resolved to issue the unsecured zero coupon euro exchangeable bonds

99.13               Announcement on 2021/04/07: March Revenue

99.14               Announcement on 2021/04/15: the trading and pledge of UMC common shares by directors, executive officers and 10% shareholders of UMC

Exhibit 99.1

To announce related materials on acquisition of machinery and equipment

  1. Name and nature of the underlying asset (e.g., land located at Sublot XX, Lot XX, North District, Taichung City): Machinery and equipment

  2. Date of occurrence of the event: 2021/03/19~2021/04/12

  3. Transaction unit amount (e.g. XX square meters, equivalent to XX ping), unit price, and total transaction price:

Transaction volume: one batch;

average unit price: NT$1,212,820,850;

total transaction price: NT$1,212,820,850

  1. Trading counterparty and its relationship with the Company (if the trading counterparty is a natural person and furthermore is not a related party of the Company, the name of the trading counterparty is not required to be disclosed):

LAM RESEARCH INTERNATIONAL SARL; non-related party transaction

  1. Where the trading counterparty is a related party, announcement shall also be made of the reason for choosing the related party as trading counterparty and the identity of the previous owner, its relationship with the Company and the trading counterparty, and the previous date and monetary amount of transfer: NA

  2. Where an owner of the underlying assets within the past five years has been a related party of the Company, the announcement shall also include the date and price of acquisition and disposal by the related party, and its relationship with the Company at the time of the transaction: NA

  3. Projected gain (or loss) through disposal (not applicable for acquisition of assets; those with deferral should provide a table explaining recognition): NA

  4. Terms of delivery or payment (including payment period and monetary amount), restrictive covenants in the contract, and other important terms and conditions: Base on purchase order payment term

  5. The manner of deciding on this transaction (such as invitation to tender, price comparison, or price negotiation), the reference basis for the decision on price, and the decision-making unit:

transaction: price negotiation;

the reference basis for the decision on price: market price;

the decision-making department: the Selection Meeting

  1. Name of the professional appraisal firm or company and its appraisal price: NA

  2. Name of the professional appraiser: NA

  3. Practice certificate number of the professional appraiser: NA

  4. The appraisal report has a limited price, specific price, or special price: NA

  5. An appraisal report has not yet been obtained: NA

  6. Reason for an appraisal report not being obtained: NA

  7. Reason for any significant discrepancy with the appraisal reports and opinion of the CPA: NA

  8. Name of the CPA firm: NA

  9. Name of the CPA: NA

  10. Practice certificate number of the CPA: NA

  11. Broker and broker’s fee: None

  12. Concrete purpose or use of the acquisition or disposal: For production

  13. Any dissenting opinions of directors to the present transaction: NA

  14. Whether the counterparty of the current transaction is a related party: No

  15. Date of the board of directors’ resolution: NA

  16. Date of ratification by supervisors or approval by the audit committee: NA

  17. The transaction is to acquire a real property or right-of-use asset from a related party: NA

  18. The price assessed in accordance with the Article 16 of the Regulations Governing the Acquisition and Disposal of Assets by Public Companies: NA

  19. Where the above assessed price is lower than the transaction price, the price assessed in accordance with the Article 17 of the same regulations: NA

  20. Any other matters that need to be specified: None

Exhibit 99.2

Supplement to the unsecured straight corporate bond issuance authorized by the Board of Director resolution passed on February 24th, 2021

  1. Date of the board of directors’ resolution: NA

  2. Name [issue no.__ of (secured, unsecured) corporate bonds of ___________ (company)]:

United Microelectronics Corporation 1st unsecured straight corporate bond issuance in 2021

  1. Total amount issued: NT$9,600 million; 5-year bond for NT$5,500 million, 7-year bond for NT$2,000 million and 10-year bond for NT$2,100 million

  2. Face value per bond: NT$1 million each

  3. Issue price: At par

  4. Issuance period: 5 years, 7 years and 10 years

  5. Coupon rate: Fixed rate, 0.57% p.a., 0.63% p.a. and 0.68% p.a. for 5-year, 7-year and 10-year bond respectively

  6. Types, names, monetary values and stipulations of collaterals: N/A

  7. Use of the funds raised by the offering and utilization plan:

purchase of equipment and environmental protection related expenditures

  1. Underwriting method: Public offering through underwriters

  2. Trustees of the corporate bonds: CTBC Bank Co., Ltd

  3. Underwriter or agent: Yuanta Securities Co., Ltd as the lead underwriter

  4. Guarantor(s) for the issuance: None

  5. Agent for payment of the principal and interest: CTBC Bank Co., Ltd

  6. Certifying institution: None

  7. Where convertible into shares, the rules for conversion: N/A

  8. Sell-back conditions: None

  9. Buyback conditions: None

  10. Reference date for any additional share exchange, stock swap, or subscription: N/A

  11. Possible dilution of equity in case of any additional share exchange, stock swap, or subscription: N/A

  12. Any other matters that need to be specified: None

Exhibit 99.3

UMC will convene Q1 2021 Investor Conference

  1. Date of institutional investor conference: 2021/04/28

  2. Time of institutional investor conference:17:00

  3. Location of institutional investor conference: Online teleconference

  4. Outline of institutional investor conference:

UMC Q1 2021 Financial and Operating Results

  1. Any other matters that need to be specified: None

Exhibit 99.4

To announce related materials on acquisition of machinery and equipment

  1. Name and nature of the underlying asset (e.g., land located at Sublot XX, Lot XX, North District, Taichung City): Machinery and equipment

  2. Date of occurrence of the event: 2021/03/16~2021/04/23

  3. Transaction unit amount (e.g. XX square meters, equivalent to XX ping), unit price, and total transaction price:

Transaction volume: one batch;

average unit price: NT$1,485,885,781;

total transaction price: NT$1,485,885,781

  1. Trading counterparty and its relationship with the Company (if the trading counterparty is a natural person and furthermore is not a related party of the Company, the name of the trading counterparty is not required to be disclosed):

Applied Materials South East Asia Pte. Ltd.; non-related party transaction

  1. Where the trading counterparty is a related party, announcement shall also be made of the reason for choosing the related party as trading counterparty and the identity of the previous owner, its relationship with the Company and the trading counterparty, and the previous date and monetary amount of transfer: NA

  2. Where an owner of the underlying assets within the past five years has been a related party of the Company, the announcement shall also include the date and price of acquisition and disposal by the related party, and its relationship with the Company at the time of the transaction: NA

  3. Projected gain (or loss) through disposal (not applicable for acquisition of assets; those with deferral should provide a table explaining recognition): NA

  4. Terms of delivery or payment (including payment period and monetary amount), restrictive covenants in the contract, and other important terms and conditions: Base on purchase order payment term

  5. The manner of deciding on this transaction (such as invitation to tender, price comparison, or price negotiation), the reference basis for the decision on price, and the decision-making unit:

transaction: price negotiation;

the reference basis for the decision on price: market price;

the decision-making department: the Selection Meeting

  1. Name of the professional appraisal firm or company and its appraisal price: NA

  2. Name of the professional appraiser: NA

  3. Practice certificate number of the professional appraiser: NA

  4. The appraisal report has a limited price, specific price, or special price: NA

  5. An appraisal report has not yet been obtained: NA

  6. Reason for an appraisal report not being obtained: NA

  7. Reason for any significant discrepancy with the appraisal reports and opinion of the CPA: NA

  8. Name of the CPA firm: NA

  9. Name of the CPA: NA

  10. Practice certificate number of the CPA: NA

  11. Broker and broker’s fee: None

  12. Concrete purpose or use of the acquisition or disposal: For production

  13. Any dissenting opinions of directors to the present transaction: NA

  14. Whether the counterparty of the current transaction is a related party: No

  15. Date of the board of directors’ resolution: NA

  16. Date of ratification by supervisors or approval by the audit committee: NA

  17. The transaction is to acquire a real property or right-of-use asset from a related party: NA

  18. The price assessed in accordance with the Article 16 of the Regulations Governing the Acquisition and Disposal of Assets by Public Companies: NA

  19. Where the above assessed price is lower than the transaction price, the price assessed in accordance with the Article 17 of the same regulations: NA

  20. Any other matters that need to be specified: None

Exhibit 99.5

Announcement of board meeting approved the consolidated financial statements for the first quarter of 2021

  1. Date of the financial reports submitted to the board of directors or approved by the board of directors: 2021/04/28

  2. Date of the financial reports approved by the audit committee: 2021/04/28

  3. Start and end dates of financial reports of the reporting period (XXXX/XX/XX~XXXX/XX/XX): 2021/01/01~2021/03/31

  4. Operating revenue accumulated from 1/1 to end of the period (thousand NTD): 47,097,012

  5. Gross profit (loss) from operations accumulated from 1/1 to end of the period (thousand NTD): 12,494,302

  6. Net operating income (loss) accumulated from 1/1 to end of the period (thousand NTD): 7,621,747

  7. Profit (loss) before tax accumulated from 1/1 to end of the period (thousand NTD): 10,983,069

  8. Profit (loss) accumulated from 1/1 to end of the period (thousand NTD): 9,888,898

  9. Profit (loss) during the period attributable to owners of parent accumulated from 1/1 to end of the period (thousand NTD): 10,427,915

  10. Basic earnings (loss) per share accumulated from 1/1 to end of the period (NTD): 0.85

  11. Total assets end of the period (thousand NTD): 394,262,154

  12. Total liabilities end of the period (thousand NTD): 144,589,394

  13. Equity attributable to owners of parent end of the period (thousand NTD): 249,577,370

  14. Any other matters that need to be specified: NA

Exhibit 99.6

The board meeting approved capital budget execution

  1. Date of the resolution of the board of directors or shareholders meeting: 2021/04/28

  2. Content of the investment plan: capital budget execution

  3. Projected monetary amount of the investment: NTD105,864 million

  4. Projected date of the investment: by capital budget plan

  5. Source of capital funds: working capital

  6. Specific purpose: capacity deployment

  7. Any other matters that need to be specified: none

Exhibit 99.7

The Board of Directors Approved the Cancellation of Restricted Shares to Employees Stock Awards

  1. Date of the board of directors’ resolution: 2021/04/28

  2. Reason for capital reduction: The Restricted shares to employees will be returned to the Company and cancelled due to non-fulfillment of the vesting conditions.

  3. Amount of capital reduction: NT$4,000,000

  4. Cancelled shares: 400,000 shares

  5. Capital reduction percentage: 0.0032%

  6. Share capital after capital reduction: NT$124,220,014,930

  7. Scheduled date of the shareholders meeting: N/A

  8. Estimated no. of listed common shares after issuance of new shares upon capital reduction: N/A

  9. Estimated ratio of listed common shares after issuance of new shares upon capital reduction to outstanding common shares: N/A

  10. Please explain any countermeasures for lower circulation in shareholding if the aforesaid estimated no. of listed common shares upon capital reduction does not reach 60 million and the percentage does not reach 25%: N/A

  11. The record date for capital reduction: 2021/04/28

  12. Any other matters that need to be specified: None

Exhibit 99.8

The Board of Directors resolved to release the managerial officer from non-competition restrictions

  1. Date of the board of directors’ resolution: 2021/04/28

  2. Name and title of the managerial officer with permission to engage in competitive conduct:

Chitung Liu, Senior Vice President & CFO

  1. Items of competitive conduct in which the officer is permitted to engage:

Chairman, United Semiconductor (Xiamen) Co., Ltd.

  1. Period of permission to engage in the competitive conduct:

Same as the period of employment

  1. Circumstances of the resolution (please describe the results of voting in accordance with Article 32 of the Company Act): Approved

  2. If the permitted competitive conduct belongs to the operator of a mainland China area enterprise, the name and title of the managerial officer (if it is not the operator of a mainland China area enterprise, please enter “N/A” below): Chitung Liu, Senior Vice President & CFO

  3. Company name of the mainland China area enterprise and the officer’s position in the enterprise: Chairman, United Semiconductor (Xiamen) Co., Ltd.

  4. Address of the mainland China area enterprise:

No. 899, Wan Jia Chun Road, Xiang An, Xiamen, Fujian, P.R. China

  1. Operations of the mainland China area enterprise: Sales and manufacturing of integrated circuits

  2. Impact on the company’s finance and business: None

  3. If the managerial officer has invested in the mainland China area enterprise, the monetary amount of the investment and the officer’s shareholding ratio: None

  4. Any other matters that need to be specified: None

Exhibit 99.9

UMC’s donation to National Tsing Hua University

  1. Date of occurrence of the event: 2021/04/28

  2. Reason for the donation: For the renovation of Chun-Shan Concert Hall-United Microelectronics Corporation Hall and Liu Chung-Laung Memorial Hall

  3. Total amount of the donation: NT$130 million

  4. Counterparty to the donation: National Tsing Hua University

  5. Relationship with the Company: None

  6. Name and resume of independent director(s) that expressed an objection or qualified opinion: None

  7. Objection or qualified opinion by the aforementioned independent director(s): None

  8. Any other matters that need to be specified: None

Exhibit 99.10

The board of directors approved the investment in TGVest Asia Partners II(Taiwan), L.P.

  1. Name and nature of the underlying assets (if preferred shares, the terms and conditions of issuance shall also be indicated, e.g., dividend yield, etc.): TGVest Asia Partners II(Taiwan), L.P.

  2. Date of occurrence of the event: 2021/04/28

  3. Amount, unit price, and total monetary amount of the transaction:

Unit Price: N/A (due to the nature of Private Equity Fund)

Total monetary amount: No more than NT$1,200,000,000

  1. Trading counterparty and its relationship with the Company (if the trading counterparty is a natural person and furthermore is not a related party of the Company, the name of the trading counterparty is not required to be disclosed): N/A

  2. Where the trading counterparty is a related party, announcement shall also be made of the reason for choosing the related party as trading counterparty and the identity of the previous owner, its relationship with the Company and the trading counterparty, and the previous date and monetary amount of transfer: N/A

  3. Where an owner of the underlying assets within the past five years has been a related party of the Company, the announcement shall also include the date and price of acquisition and disposal by the related party, and its relationship with the Company at the time of the transaction: N/A

  4. Matters related to the current disposal of creditors' rights (including types of collaterals of the disposed creditor’s rights; if creditor’s rights over a related party, announcement shall be made of the name of the related party and the book amount of the creditor's rights, currently being disposed of, over such related party): N/A

  5. Profit or loss from the disposal (not applicable in cases of acquisition of securities) (those with deferral should provide a table explaining recognition): N/A

  6. Terms of delivery or payment (including payment period and monetary amount), restrictive covenants in the contract, and other important terms and conditions:

According to Limited Partnership Agreement. Capital contributions by capital call notices.

  1. The manner of deciding on this transaction (such as invitation to tender, price comparison, or price negotiation), the reference basis for the decision on price, and the decision-making unit: Based on the Board of Directors’ resolution.

  2. Net worth per share of the Company’s underlying securities acquired or disposed of: N/A

  3. Cumulative no. of shares held (including the current transaction), their monetary amount, shareholding percentage, and status of any restriction of rights (e.g., pledges), as of the present moment:

Cumulative volume: N/A; Monetary amount: No more than NTD1,200,000,000;

Percentage of holdings: N/A; Status of any restriction of rights: None

  1. Current ratio of securities investment (including the current trade, as listed in article 3 of Regulations Governing the Acquisition and Disposal of Assets by Public Companies) to the total assets and equity attributable to owners of the parent as shown in the most recent financial statement and working capital as shown in the most recent financial statement as of the present:

Ratio of total assets: 38.28%;

Ratio of shareholder’s equity: 51.80%;

Working capital as shown in the most recent financial statement: NTD 93,345,963,000

  1. Broker and broker’s fee: None

  2. Concrete purpose or use of the acquisition or disposal: Long term investment

  3. Any dissenting opinions of directors to the present transaction: None

  4. Whether the counterparty of the current transaction is a related party: No

  5. Date of the board of directors’ resolution: 2021/04/28

  6. Date of ratification by supervisors or approval by the Audit Committee: 2021/04/28

  7. Whether the CPA issued an unreasonable opinion regarding the current transaction: No

  8. Name of the CPA firm: Kau Wei CPAs Firm

  9. Name of the CPA: Wenching Tsai

  10. Practice certificate number of the CPA: Tai Cai Zheng Deng (Six) Zi No. 1494

  11. Whether the transaction involved in change of business model: No

  12. Details on change of business model: N/A

  13. Details on transactions with the counterparty for the past year and the expected coming year: None

  14. Source of funds: Disposable funds of the company

  15. Any other matters that need to be specified: None

Exhibit 99.11

UMC announced its operating results for the first quarter of 2021

  1. Date of occurrence of the event: 2021/04/28

  2. Company name: UNITED MICROELECTRONICS CORPORATION

  3. Relationship to the Company (please enter “head office” or “subsidiaries”): head office

  4. Reciprocal shareholding ratios: N/A

  5. Cause of occurrence:

UMC Reports First Quarter 2021 Results

UMC announces partnership with customers for NT$100 billion capacity expansion at Fab 12A P6

First Quarter 2021 Overview:

‧Revenue: NT$47.10 billion (US$1.65 billion)

‧Gross margin: 26.5%; Operating margin: 16.2%

‧Revenue from 28nm: 20%

‧Capacity utilization rate: 100%

‧Net income attributable to stockholders of the parent: NT$10.43 billion (US$366 million)

‧Earnings per share: NT$0.85; earnings per ADS: US$0.149

United Microelectronics Corporation (NYSE: UMC; TWSE: 2303) (“UMC” or “The Company”), a leading global semiconductor foundry, today announced its consolidated operating results for the first quarter of 2021.

First quarter consolidated revenue was NT$47.10 billion, which increased 4.0% QoQ from NT$45.30 billion in 4Q20. Compared to a year ago, 1Q21 revenue was up 11.4% YoY from NT$42.27 billion in 1Q20. Consolidated gross margin for 1Q21 was 26.5%. Net income attributable to the stockholders of the parent was NT$10.43 billion, with earnings per ordinary share of NT$0.85.

Jason Wang, co-president of UMC, said, “Amid the semiconductor component shortage, we are working with our customers, suppliers and partners to alleviate the capacity tightness across the supply chain. In Q1, robust wafer demand led to full utilization in our manufacturing sites, bringing overall wafer shipments to 2.37 million 8-inch equivalents. For the quarter, our gross profit grew 15.2% QoQ to NT$12.49 billion which partly reflected higher contribution from our 28nm technologies. During the first quarter, we continued to see an increase in 28nm wafer shipments driven by strong wafer demand associated with digital TV, set top box and connectivity chips designed into smartphones. As a result, 28nm revenue grew 18% QoQ, representing 20% of our wafer business. Furthermore, we have started to ship 22nm products to fulfill consumer demand, leading to the recognition of 22nm wafer revenue in 1Q21. We foresee a significant pick up in 22nm product tape outs that will increase our 22/28nm product pipeline, optimize overall product mix and enhance UMC’s foundry share.”

Co-president Wang continued, “Looking into the second quarter, market demand will continue to outpace supply which will lift wafer shipments and blended ASP in USD. Recent market dynamics have provided us and our customers an opportunity to reinforce our capex strategy within our ROI boundary, while trying to alleviate the long term capacity constraint in the supply chain. Therefore, our Board of Directors has approved an investment plan which will expand the capacity at UMC Fab 12A capacity Phase 6 (P6) in Taiwan’s Tainan Science Park through an innovative, win-win partnership model with several leading global customers. The P6 expansion is scheduled for production in the second quarter of 2023, with total investment for the project earmarked at NT$100 billion. In addition to UMC’s previously announced 2021 CAPEX of US$1.5 billion, the bulk of which is allocated towards equipment for the company’s Fab 12A P5 site adjacent to P6, total UMC investment in the Tainan Science Park will reach approximately NT$150 billion over the next three years. The P6 program is supported by a multi-year product alignment between UMC and the involved customers that includes a loading protection mechanism that will ensure the P6 capacity is maintained at a healthy loading level. We look forward to leveraging our No. 1 worldwide foundry market position in multiple areas such as 28nm OLED driver IC production, so we may further strengthen UMC’s semiconductor industry relevance and capture new market opportunities down the road.”

Second Quarter 2021 Outlook & Guidance

‧Wafer Shipments: To increase by approximately 2%

‧ASP in USD: To increase by 3-4%

‧Gross Profit Margin: To challenge 30%

‧Capacity Utilization: 100%

‧2021 CAPEX: US$2.3 billion

  1. Countermeasures: N/A

  2. Any other matters that need to be specified: N/A

Exhibit 99.12

The Board of Directors resolved to issue the unsecured zero coupon euro exchangeable bonds

  1. Date of the board of directors’ resolution: 2021/04/28

  2. Name [issue no.__ of (secured, unsecured) corporate bonds of ___________ (company)]: United Microelectronics Corporation unsecured zero coupon euro exchangeable bonds

  3. Total amount issued: no more than US$600 million

  4. Face value per bond: temporarily set at US$200,000 each or any integral multiple thereof

  5. Issue price: at par

  6. Issuance period: temporarily set at five years

  7. Coupon rate: temporarily set at 0%

  8. Types, names, monetary values and stipulations of collaterals: N/A

  9. Use of the funds raised by the offering and utilization plan: funding for purchasing machinery and equipment

  10. Underwriting method: the UMC Chairman is authorized to determine according to the market situation

  11. Trustees of the corporate bonds: the UMC Chairman is authorized to determine according to the market situation

  12. Underwriter or agent: the UMC Chairman is authorized to determine according to the market situation

  13. Guarantor(s) for the issuance: N/A

  14. Agent for payment of the principal and interest: the UMC Chairman is authorized to determine according to the market situation

  15. Certifying institution: the UMC Chairman is authorized to determine according to the market situation

  16. Where convertible into shares, the rules for conversion: the UMC Chairman is authorized to determine according to the market situation

  17. Sell-back conditions: the UMC Chairman is authorized to determine according to the market situation

  18. Buyback conditions: the UMC Chairman is authorized to determine according to the market situation

  19. Reference date for any additional share exchange, stock swap, or subscription: N/A

  20. Possible dilution of equity in case of any additional share exchange, stock swap, or subscription:

The exchanged securities of the unsecured zero coupon euro exchangeable bonds are the common shares of Novatek Microelectronics Corp. held by the Company. There will be no dilution effect to the original shareholders’ equity.

  1. Any other matters that need to be specified:

The unsecured zero coupon euro exchangeable bonds will be offered and issued after the effective registration with the Securities and Futures Bureau, Financial Supervisory Commission. Additional announcement will be made thereafter when terms and conditions are materialized.

Exhibit 99.13

United Microelectronics Corporation

April 7, 2021

This is to report the changes or status of 1) Sales volume, 2) Funds lent to other parties, 3) Endorsements and guarantees, and 4) Financial derivative transactions for the period of March 2021.

1) Sales volume (NT$ Thousand)
Period Items 2021 2020 Changes %
--- --- --- --- --- ---
March Net sales 16,619,555 14,570,408 2,049,147 14.06%
Year-to-Date Net sales 47,097,012 42,267,847 4,829,165 11.43%
2) Funds lent to other parties (NT$ Thousand)
--- ---
Balance as of period end Last Month<br><br><br>(actual amount provided) Limit of lending
--- --- ---
UMC 4,799,100 23,565,975
Note: On December 16, 2020, the board of directors resolved to lend funds to USC(Xiamen) for the amount up to US 170 million. The actual amount lent to USC(Xiamen) as of March 31, 2021 was US 0 million.

All values are in US Dollars.

3) Endorsements and guarantees (NT$ Thousand)
Balance as of period end Last Month<br><br><br>(actual amount provided) Limit of lending
--- --- ---
UMC 18,896,712 106,046,886
Note: On February 22, 2017, March 7, 2018, October 24, 2018, July 24,2019, December 18, 2019, July 29, 2020, October 29, 2020 and December 16, 2020, the board of directors resolved to provide endorsement to USC(Xiamen)’s syndicated loan from banks for the amount up to US 373 million and CNY 1,969 million.

All values are in US Dollars.

4) Financial derivatives transactions :

aNot under hedging accounting: NT$ thousand

UMC

Financial instruments Option Forwards IRS
Put Call
Deposit Paid 0 0 0 0
Royalty Income (Paid) 0 0 0 0
Unwritten-off Trading
Contracts 0 0 1,367,040 0
Fair Value 0 0 (19,653) 0
Net profit (loss) from Fair Value 0 0 (19,712) 0
Written-off Trading
Contracts 0 0 8,685,102 0
Realized profit (loss) 0 0 5,318 0

Exhibit 99.14

United Microelectronics Corporation

For the month of March, 2021

This is to report 1) the trading of directors, executive officers and 10% shareholders of United Microelectronics Corporation (“UMC”) (NYSE: UMC); 2) the pledge and clear of pledge of UMC common shares by directors, executive officers and 10% shareholders of UMC;

1) The trading of directors, executive officers and 10% shareholders
Title Name Number of shares as of February 28, 2021 Number of shares as of March 31, 2021 Changes
--- --- --- --- ---
Senior Vice President<br><br><br>Vice President<br><br><br>Vice President<br><br><br>Associate Vice President Oliver Chang<br><br><br>Francia Hsu<br><br><br>Eric Chen<br><br><br>Johnson Liu 1,420,589<br><br><br>1,291,000<br><br><br>1,505,000<br><br><br>536,413 1,311,589<br><br><br>1,266,000<br><br><br>1,465,000<br><br><br>511,413 (109,000)<br><br><br>(25,000)<br><br><br>(40,000)<br><br><br>(25,000)
2) The pledge and clear of pledge of UMC common shares by directors, executive officers and 10% shareholders:
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Title Name Number of shares as of February 28, 2021 Number of shares as of March 31, 2021 Changes
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Vice President Steven S Liu 470,000 1,000,000 530,000