United Microelectronics Corp 6-K, filed Oct 13, 2026
United Microelectronics Corp (UMC)
About this 6-K
United Microelectronics Corp filed this 6-K on October 13, 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
October 13, 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 |
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By: |
Chitung Liu |
Name: |
Chitung Liu |
Title: |
CFO |
Date: October 13, 2026
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www.umc.com
Exhibit
Exhibit Description
99.1 Announcement on 2026/10/07: To clarify news reported by Chinatimes on October 6, 2026
99.2 Announcement on 2026/10/13: UMC will convene Q3 2026 Investor Conference
Exhibit 99.1
To clarify news reported by Chinatimes on October 6, 2026
1. Date of occurrence of the event: 2026/10/07
2. Company name: UNITED MICROELECTRONICS CORP.
3. Relationship with the Company (please enter “the company itself” or “subsidiaries”): the company itself
4. Reciprocal shareholding percentage: N/A
5. Name of the reporting media: Chinatimes
6. Content of the report:
「...UMC’s 2026 revenue is estimated to grow by nearly 21% year on year, with profit expected to increase by approximately 133%...」
7. Cause of occurrence:
The Company does not comment on speculative reports or market rumors. Regarding the Company’s financial and operating results, please refer to the public notice on MOPS.
8. Countermeasures: None
9. Any other matters that need to be specified: None
Exhibit 99.2
UMC will convene Q3 2026 Investor Conference
1. Date of institutional investor conference: 2026/10/28
2. Time of institutional investor conference: 17:00
3. Location of institutional investor conference: Online teleconference
4. Outline of institutional investor conference: UMC Q3 2026 Financial and Operating Results
5. Any other matters that need to be specified: None