UMC 6-K
United Microelectronics Corp (UMC)
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 10, 2025
(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: April 10, 2025
EXHIBIT INDEX
| Exhibit | Description | |
|---|---|---|
| 99 | 6K on 04/10/2025 |
EX-99
www.umc.com
Exhibit
Exhibit Description
99.1 Announcement on 2025/04/09: UMC will convene Q1 2025 Investor Conference
99.2 Announcement on 2025/04/08: March Revenue
99.3 Announcement on 2025/04/09: the trading and pledge of UMC common shares by directors, executive officers and 10% shareholders of UMC
Exhibit 99.1
UMC will convene Q1 2025 Investor Conference
Date of institutional investor conference: 2025/04/23
Time of institutional investor conference: 17:00
Location of institutional investor conference: Online teleconference
Outline of institutional investor conference: UMC Q1 2025 Financial and Operating Results
Any other matters that need to be specified: None
Exhibit 99.2
United Microelectronics Corporation
April 8, 2025
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 2025.
- Sales volume (NT$ Thousand)
| Period | Items | 2025 | 2024 | Changes | % |
|---|---|---|---|---|---|
| March | Net sales | 19,858,647 | 18,167,134 | 1,691,513 | 9.31% |
| Year-to-Date | Net sales | 57,858,957 | 54,632,099 | 3,226,858 | 5.91% |
Funds lent to other parties (NT$ Thousand): None
Endorsements and guarantees (NT$ Thousand)
| Balance as of period end | This Month<br><br>(actual amount provided) | Last Month<br><br>(actual amount provided) | Limit of lending |
|---|---|---|---|
| UMC | 6,494,544 | 6,408,864 | 170,067,776 |
| 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 ,July 31, 2024, December 18, 2024 and February 26, 2025, the board of directors resolved to provide endorsement to USC(Xiamen)’s syndicated loan from banks for the amount up to CNY¥ 1,428 million. |
- 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 | 795,120 | 0 | |||
| Fair Value | 0 | 0 | (5,277) | 0 | |||
| Net profit (loss) from Fair Value | 0 | 0 | (4,240) | 0 | |||
| Written-off Trading | |||||||
| Contracts | 0 | 0 | 2,101,860 | 0 | |||
| Realized profit (loss) | 0 | 0 | (5,400) | 0 |
Exhibit 99.3
United Microelectronics Corporation
For the month of March, 2025
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 February 28, 2025 | Number of shares as of March 31, 2025 | Changes |
|---|---|---|---|---|
| Vice President<br><br>Vice President<br><br>Vice President<br><br>Vice President<br><br>Vice President<br><br>Vice President | S F Tzou<br><br>Jerry CJ Hu<br><br>Y S Shen<br><br>Francia Hsu<br><br>Mindy Lin<br><br>Eric Chen | 1,225,308<br><br>3,036,200<br><br>1,326,200<br><br>1,528,200<br><br>2,830,125<br><br>1,686,200 | 1,065,308<br><br>2,936,200<br><br>406,200<br><br>978,200<br><br>2,815,125<br><br>1,426,200 | (160,000)<br><br>(100,000)<br><br>(920,000)<br><br>(550,000)<br><br>(15,000)<br><br>(260,000) |
- The pledge and clear of pledge of UMC common shares by directors, executive officers and 10% shareholders:
| Title | Name | Number of shares as of February 28, 2025 | Number of shares as of March 31, 2025 | Changes |
|---|---|---|---|---|
| - | - | - | - | - |