United Microelectronics Corporation Form 20-F: Annual report of foreign private issuer
Filings on SEC EDGAR, newest first; amendments sit with their base form. Values are as filed.
- 2026-04-30: Form 20-F; Period of report 2025-12-31; Description FORM 20-F; Document d91630d20f.htm.
- 2025-04-24: Form 20-F; Period of report 2024-12-31; Description FORM 20-F; Document d846836d20f.htm.
- 2024-04-25: Form 20-F; Period of report 2023-12-31; Description FORM 20-F; Document d448612d20f.htm.
- 2023-04-27: Form 20-F; Period of report 2022-12-31; Description FORM 20-F; Document d389572d20f.htm.
| Filed | Form | Period of report | Description | Document |
|---|---|---|---|---|
| 2026-04-30 | 20-F | 2025-12-31 | FORM 20-F | d91630d20f.htm |
| 2025-04-24 | 20-F | 2024-12-31 | FORM 20-F | d846836d20f.htm |
| 2024-04-25 | 20-F | 2023-12-31 | FORM 20-F | d448612d20f.htm |
| 2023-04-27 | 20-F | 2022-12-31 | FORM 20-F | d389572d20f.htm |
| 2022-04-28 | 20-F | 2021-12-31 | FORM 20-F | d168667d20f.htm |
| 2021-04-29 | 20-F | 2020-12-31 | 20-F | umc-20f_20201231.htm |
| 2020-04-28 | 20-F | 2019-12-31 | FORM 20-F | d820941d20f.htm |
| 2019-04-25 | 20-F | 2018-12-31 | FORM 20-F | d603585d20f.htm |
| 2018-04-26 | 20-F | 2017-12-31 | FORM 20-F | d484523d20f.htm |
| 2017-04-13 | 20-F | 2016-12-31 | FORM 20-F | d280541d20f.htm |
| 2016-04-18 | 20-F | 2015-12-31 | FORM 20-F | d168513d20f.htm |
| 2015-04-21 | 20-F | 2014-12-31 | FORM 20-F | d910283d20f.htm |
| 2014-04-18 | 20-F | 2013-12-31 | FORM 20-F | d705385d20f.htm |
| 2013-04-26 | 20-F | 2012-12-31 | FORM 20-F | d525083d20f.htm |
| 2012-04-26 | 20-F | 2011-12-31 | FORM 20-F | d338301d20f.htm |
| 2011-04-29 | 20-F | 2010-12-31 | FORM 20-F | c15862e20vf.htm |
| 2010-04-30 | 20-F | 2009-12-31 | FORM 20-F | d20f.htm |
| 2009-05-08 | 20-F | 2008-12-31 | FORM 20-F | c84283e20vf.htm |
| 2008-05-02 | 20-F | 2007-12-31 | UNITED MICROELECTRONICS CORPORATION | h02077e20vf.htm |
| 2007-05-09 | 20-F | 2006-12-31 | FORM 20-F | d20f.htm |
| 2006-06-26 | 20-F | 2005-12-31 | FORM 20-F | d20f.htm |
| 2005-06-29 | 20-F | 2004-12-31 | FORM 20-F | d20f.htm |
| 2004-06-17 | 20-F | 2003-12-31 | FORM 20-F | d20f.htm |
| 2003-06-25 | 20-F | 2002-12-31 | FORM 20-F | d20f.htm |
| 2002-06-13 | 20-F | 2001-12-31 | AUTO-GENERATED PAPER DOCUMENT | 9999999997-02-034947.paper |