UMC Files 6-K Report, Confirms 20-F Filing
Ticker: UMC · Form: 6-K · Filed: Oct 29, 2025 · CIK: 1033767
Sentiment: neutral
Topics: regulatory-filing, foreign-issuer, sec-compliance
TL;DR
UMC filed a 6-K, confirming it's a foreign issuer reporting under 20-F. Standard stuff.
AI Summary
United Microelectronics Corporation (UMC) filed a Form 6-K on October 29, 2025. The filing is a report of a foreign issuer and indicates that UMC files its annual reports under Form 20-F. The company's principal executive office is located at No. 3 Li-Hsin 2nd Road, Hsinchu Science Park, Hsinchu, Taiwan, R.O.C.
Why It Matters
This filing confirms UMC's reporting status with the SEC and provides its primary business address, which is important for investors tracking the company's regulatory compliance.
Risk Assessment
Risk Level: low — This filing is a routine administrative report and does not contain new financial or operational information that would typically indicate a change in risk.
Key Players & Entities
- United Microelectronics Corporation (company) — Registrant
- 001-15128 (company) — SEC File Number
- October 29, 2025 (date) — Filing Date
- Form 20-F (document) — Annual Report Form
- Form 6-K (document) — Report Type
FAQ
What is the primary purpose of this Form 6-K filing?
This Form 6-K is a report of a foreign issuer pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934.
Which form does United Microelectronics Corporation use for its annual reports?
United Microelectronics Corporation files its annual reports under cover of Form 20-F.
What is the principal executive office address for United Microelectronics Corporation?
The principal executive office is located at No. 3 Li-Hsin 2nd Road, Hsinchu Science Park, Hsinchu, Taiwan, R.O.C.
When was this Form 6-K filed?
This Form 6-K was filed on October 29, 2025.
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 2025-10-29 06:00:45
Filing Documents
- 6k_on_10292025.htm (6-K) — 25KB
- umc-ex99.htm (EX-99) — 36KB
- img239034952_0.jpg (GRAPHIC) — 6KB
- 0001193125-25-254520.txt ( ) — 72KB
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: October 29, 2025 2 EXHIBIT INDEX Exhibit Description 99 6K on 10/29/2025 3