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
October 27, 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: October 27, 2025
EXHIBIT INDEX
| Exhibit | Description |
|---|---|
| 99.1 | 6K on 10/27/2025 |
EX-99.1
www.umc.com
Exhibit
Exhibit Description
99.1 Announcement on 2025/10/21: Represent major subsidiary United Semiconductor (Xiamen) Co., Ltd. to announce the Board Resolution to Convene a 2025 Extraordinary Shareholders’ Meeting
Exhibit 99.1
Represent major subsidiary United Semiconductor (Xiamen) Co., Ltd. to announce the Board Resolution to Convene a 2025 Extraordinary Shareholders’ Meeting
Date of the board of directors' resolution: 2025/10/27
Special shareholders meeting date: 2025/10/28
Special shareholders meeting location: No.899 Wan Jia Chun Road, Xiang’an District, Xiamen, Fujian Province, China
Cause for convening the meeting (1) Reported matters: None
Cause for convening the meeting (2) Acknowledged matters: None
Cause for convening the meeting (3) Matters for Discussion: Amend the Company’s “Asset Acquisition and Disposal Procedures”
Cause for convening the meeting (4) Election matters: None
Cause for convening the meeting (5) Other Proposals: None
Cause for convening the meeting (6) Extemporary Motions: None
Book closure starting date: NA
Book closure ending date: NA
Any other matters that need to be specified: None