| UMC 2Q 2025 Financial Results
| July 30, 2025 |
| UMC Wins Two Honors at the 2025 Asia Responsible Enterprise AwardsCo-President SC Chien Recognized as a Responsible Business Leader
| June 30, 2025 |
| UMC Shareholders Approve NT$2.85 Cash Dividend at Annual Shareholders’ Meeting
| May 28, 2025 |
| UMC Achieves Highest Corporate Governance Ranking among Taiwan Listed Companies for 11th Consecutive Year
| April 30, 2025 |
| UMC Files Form 20-F for 2024 with US Securities and Exchange Commission
| April 24, 2025 |
| UMC 1Q 2025 Financial Results
| April 23, 2025 |
| UMC Unveils New Fab Expansion in Singapore in Grand Opening CeremonyNew 22nm fab to be one of the most advanced semiconductor manufacturing facilities in Singapore and is set to create approximately 700 new jobs
| April 01, 2025 |
| UMC Board of Directors Announces Proposals for its Annual Shareholders Meeting
| February 26, 2025 |
| UMC Ranks Top 1% in the Semiconductor Industry in S&P Global Sustainability Yearbook 2025
| February 14, 2025 |
| UMC Recognized with Double ‘A’ score for Climate Change and Water Security Leadership in CDP A List for Three Consecutive Years
| February 10, 2025 |
| Response to Recent Taiwan Earthquake
| January 21, 2025 |
| UMC 4Q 2024 Financial Results
| January 21, 2025 |