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 21, 2026
(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 21, 2026
EXHIBIT INDEX
| Exhibit | Description |
|---|---|
| 99.1 | 6K on 04/21/2026 |
EX-99.1
www.umc.com
Exhibit
Exhibit Description
99.1 Announcement on 2026/04/21: Announcement of the Company’s Board Meeting Date of Q1, 2026 Consolidated Financial Report
Exhibit 99.1
Announcement of the Company's Board Meeting Date of Q1, 2026 Consolidated Financial Report
Date of a notice of the board of directors meeting is issued: 2026/04/21
Expected date of the board of directors meeting is convened: 2026/04/29
Expected year and quarter of the financial reports or the annual self-assessed financial information submitted to the board of directors or approved by the board of directors:
Q1, 2026 Consolidated Financial Report
- Any other matters that need to be specified: None