UMC Files 6-K Report with SEC
Ticker: UMC · Form: 6-K · Filed: Dec 4, 2025 · CIK: 1033767
| Field | Detail |
|---|---|
| Company | United Microelectronics Corp (UMC) |
| Form Type | 6-K |
| Filed Date | Dec 4, 2025 |
| Risk Level | low |
| Pages | 1 |
| Reading Time | 1 min |
| Sentiment | neutral |
Sentiment: neutral
Topics: 6-K, foreign-issuer, sec-filing
TL;DR
UMC filed a 6-K, standard foreign issuer report. Nothing major, just housekeeping.
AI Summary
United Microelectronics Corporation filed a Form 6-K on December 4, 2025, to report information as a foreign issuer. The filing indicates the company is subject to the requirements of the Securities Exchange Act of 1934 and will file annual reports under Form 20-F. The principal executive office is located in Hsinchu, Taiwan.
Why It Matters
This filing is a routine disclosure for foreign issuers, providing transparency on their reporting obligations and corporate information to the SEC and investors.
Risk Assessment
Risk Level: low — This is a routine administrative filing by a foreign issuer and does not contain new financial or operational information that would typically impact risk.
Key Players & Entities
- United Microelectronics Corporation (company) — Filer of the report
- 001-15128 (company) — SEC File Number
- December 4, 2025 (date) — Filing date
- Form 20-F (document) — Annual report form
- Hsinchu, Taiwan (location) — Principal executive office location
FAQ
What type of filing is this Form 6-K?
This Form 6-K is a Report of Foreign Issuer Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934.
Which annual report form does United Microelectronics Corporation file?
United Microelectronics Corporation files its annual reports under cover of Form 20-F.
What is the filing date of this report?
The filing date of this report is December 4, 2025.
Where is the principal executive office of United Microelectronics Corporation located?
The principal executive office is located at No. 3 Li-Hsin 2nd Road, Hsinchu Science Park, Hsinchu, Taiwan, R.O.C.
What is the SEC File Number for United Microelectronics Corporation?
The SEC File Number for United Microelectronics Corporation is 001-15128.
Filing Stats: 191 words · 1 min read · ~1 pages · Grade level 12.3 · Accepted 2025-12-04 06:16:39
Filing Documents
- 6k_on_12042025.htm (6-K) — 25KB
- umc-ex99.htm (EX-99) — 55KB
- img239034952_0.jpg (GRAPHIC) — 6KB
- 0001193125-25-307415.txt ( ) — 91KB
SIGNATURES
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: December 4, 2025 2 EXHIBIT INDEX Exhibit Description 99 6K on 12/04/2025 3