United Microelectronics Corporation Form 6-K: Report of foreign private issuer
Filings on SEC EDGAR, newest first; amendments sit with their base form. Values are as filed.
- 2021-12-27: Form 6-K; Period of report 2021-12-27; Description 6-K; Document umc-6k_20211227.htm.
- 2021-11-26: Form 6-K; Period of report 2021-11-26; Description 6-K; Document umc-6k_20211126.htm.
- 2021-11-17: Form 6-K; Period of report 2021-09-30; Description FORM 6-K; Document umcfs3q21_6k.htm.
- 2021-10-27: Form 6-K; Period of report 2021-10-27; Description 6-K; Document umc-6k_20211027.htm.