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UMC 6-K

United Microelectronics Corp (UMC)

6-K 2024-09-12 For: 2024-09-12
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Added on April 10, 2026

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

September 12, 2024

(Commission File Number: 001-15128)

United Microelectronics Corporation

(Translation of registrant’s name into English)

No. 3 Li-Hsin 2nd Road

Hsinchu 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: September 12, 2024

EXHIBIT INDEX

Exhibit Description
99 6K on 09/12/2024

EX-99

img239034952_0.jpg www.umc.com

Exhibit

Exhibit Description

99.1 Announcement on 2024/08/28: UMC will attend investor conferences on 2024/09/04

99.2 Announcement on 2024/09/12: Announcement of the change of Custodian bank for the Depositary Receipts (DR) program

99.3 Announcement on 2024/09/05: August Revenue

99.4 Announcement on 2024/09/10: the trading and pledge of UMC common shares by directors, executive officers and 10% shareholders of UMC

Exhibit 99.1

UMC will attend investor conferences on 2024/09/04

  1. Date of institutional investor conference: 2024/09/04

  2. Time of institutional investor conference: 09:00 AM

  3. Location of institutional investor conference: Grand Hyatt Taipei

  4. Outline of institutional investor conference:

The Company will attend the “Taiwan Corporate Day 2024”, held by Goldman Sachs.

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

Exhibit 99.2

Announcement of the change of Custodian bank for the Depositary Receipts (DR) program

  1. Date of occurrence of the event: 2024/09/12

  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: The company will change the Custodian bank for the DR program

  6. Countermeasures: N/A

  7. Any other matters that need to be specified (the information disclosure also meets the requirements of Article 7, subparagraph 9 of the Securities and Exchange Act Enforcement Rules, which brings forth a significant impact on shareholders rights or the price of the securities on public companies.):

Due to the business arrangement of our depositary bank, JPMorgan Chase Bank, N.A., the custodian bank will change from JPMorgan Chase Bank, Taipei Branch to Standard Chartered Bank (Taiwan) Limited, effective on September 16, 2024.

Exhibit 99.3

United Microelectronics Corporation

September 5, 2024

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 August 2024.

  • Sales volume (NT$ Thousand)
Period Items 2024 2023 Changes %
August Net sales 20,645,494 18,952,011 1,693,483 8.94%
Year-to-Date Net sales 152,973,760 148,521,784 4,451,976 3.00%
  • Funds lent to other parties (NT$ Thousand): None

  • Endorsements and guarantees (NT$ Thousand)

Balance as of period end Last Month<br><br>(actual amount provided) Limit of lending
UMC 8,915,412 160,100,720
Note: On February 22, 2017, March 7, 2018, October 24, 2018, July 24,2019, December 18, 2019, July 29, 2020, October 29, 2020, December 16, 2020, July 28, 2021, October 27, 2021, December 15, 2021, April 27, 2022, October 26, 2022, December 14, 2022, April 26, 2023, July 26, 2023, December 13, 2023, February 27, 2024 and July 31, 2024, the board of directors resolved to provide endorsement to USC(Xiamen)’s syndicated loan from banks for the amount up to CNY 1,972 million.

All values are in Japanese Yen.

  • Financial derivatives transactions:

a Not 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 1,020,480 0
Fair Value 0 0 3,397 0
Net profit (loss) from Fair Value 0 0 3,397 0
Written-off Trading
Contracts 0 0 645,038 0
Realized profit (loss) 0 0 8,130 0

Exhibit 99.4

United Microelectronics Corporation

For the month of August, 2024

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;

  • The trading of directors, executive officers and 10% shareholders
Title Name Number of shares as of July 31, 2024 Number of shares as of August 31, 2024 Changes
Executive Vice President<br><br>Senior Vice President<br><br>Vice President<br><br>Vice President<br><br>Vice President Ming Hsu<br><br>Oliver Chang<br><br>S F Tzou<br><br>Jerry CJ Hu<br><br>Y S Shen 5,488,000<br><br>2,872,589<br><br>1,259,108<br><br>2,468,000<br><br>1,128,000 5,333,000<br><br>2,816,589<br><br>1,129,108<br><br>2,466,000<br><br>968,000 (155,000)<br><br>(56,000)<br><br>(130,000)<br><br>(2,000)<br><br>(160,000)
  • The pledge and clear of pledge of UMC common shares by directors, executive officers and 10% shareholders:
Title Name Number of shares as of July 31, 2024 Number of shares as of August 31, 2024 Changes
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