United Microelectronics CORP 6-K Filing
Ticker: UMC · Form: 6-K · Filed: Dec 17, 2025 · CIK: 1033767
Sentiment: neutral
Filing Stats: 191 words · 1 min read · ~1 pages · Grade level 12.3 · Accepted 2025-12-17 06:08:43
Filing Documents
- 6k_on_12172025.htm (6-K) — 25KB
- umc-ex99.htm (EX-99) — 20KB
- img239034952_0.jpg (GRAPHIC) — 6KB
- 0001193125-25-321620.txt ( ) — 55KB
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 17, 2025 2 EXHIBIT INDEX Exhibit Description 99 6K on 12/17/2025 3