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
November 20, 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: November 20, 2025
EXHIBIT INDEX
| Exhibit | Description |
|---|---|
| 99.1 | 6K on 11/20/2025 |
EX-99.1
www.umc.com
Exhibit
Exhibit Description
99.1 Announcement on 2025/11/18: UMC will attend investor conferences on 2025/11/24
Exhibit 99.1
UMC will attend investor conferences on 2025/11/24
Date of institutional investor conference: 2025/11/24
Time of institutional investor conference: 09:00 AM
Location of institutional investor conference: Mandarin Oriental Taipei
Outline of institutional investor conference:
The Company will attend the “2025 Taiwan Corporate Day”, held by Citi.
- Any other matters that need to be specified: None