Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16]:
SEC Accession No. 0001193125-25-209921
Filing Date
2025-09-22
Accepted
2025-09-22 06:23:35
Documents
3
Period of Report
2025-09-22

Document Format Files

Seq Description Document Type Size
1 6-K 6k_on_09222025.htm 6-K 25858
2 EX-99.1 umc-ex99_1.htm EX-99.1 22040
3 GRAPHIC img208044986_0.jpg GRAPHIC 6606
  Complete submission text file 0001193125-25-209921.txt   58187
Mailing Address 8F, NO.68, SEC. 1, NEIHU RD., TAIPEI F5 11493
Business Address 8F, NO.68, SEC. 1, NEIHU RD., TAIPEI F5 11493 886-2-2658-9168
UNITED MICROELECTRONICS CORP (Filer) CIK: 0001033767 (see all company filings)

EIN.: 000000000 | State of Incorp.: F5 | Fiscal Year End: 1231
Type: 6-K | Act: 34 | File No.: 001-15128 | Film No.: 251328354
SIC: 3674 Semiconductors & Related Devices
(CF Office: 04 Manufacturing)