United Microelectronic Corp. (UMC)
Who runs United Microelectronic Corp.
Officers and directors as they report to the SEC on Forms 3, 4 and 5, named as filedJason Wang became chief executive in 2026. He joined UMC in 2008 as vice president of corporate marketing, ran UMC Group (USA), its North American arm, from 2009 to 2014, and became co-president in 2017, overseeing strategy, sales and customer engineering; before UMC he spent 18 years at Trident Microsystems. Stan Hung, who joined in 1991 and was once chief financial officer, is chairman and chief strategic officer. Ming Hsu, who joined in 2003, is president and chief operating officer. Chitung Liu, a managing director of UBS before he joined in 2001, is chief financial officer, and TS Wu, who joined in 1990, runs the fabs worldwide as a senior vice president. 123456
The chief executive and the president sit on the board as representatives of two of UMC's own shareholders, Silicon Integrated Systems and Hsun Chieh Investment, which hold 2.12% and 3.51% of its shares; UMC in turn owns 17.99% of Silicon Integrated Systems and 36.49% of Hsun Chieh. Six independent directors sit beside them, among them Lih J. Chen, the lead independent director and a former president of National Tsing Hua University, and Jyuo-Min Shyu, a former minister of science and technology and president of the Industrial Technology Research Institute. The insider record this site holds begins only in 2026: ten of the eleven people on it first filed on the same day in March, so it shows nothing yet of their tenure. 1478910111213
At the end of 2025 UMC counted 19,097 employees: 12,337 engineers, 5,924 technicians and 836 administrative staff, most of them working in Taiwan. Of these, 1,591 were research and development professionals. No employees are covered by collective bargaining agreements. Employees share in the profits under the articles of incorporation; for 2025 the board proposed a cash bonus of NT$3,438.3 million, in New Taiwan dollars. 14151617
Sources (17)
| Name | Title as filed | First filing | Latest filing | Sales, 12 months |
|---|---|---|---|---|
| Lin Jen-Tsung | Vice President | May 2026 | Sep 22, 2026 | 1 · $1.6M |
| Yen Hung-Yu | CHRO & VP | Sep 2026 | Sep 18, 2026 | none |
| Liu Chitung | CFO & SVP | Mar 2026 | Sep 17, 2026 | 3 · $523M |
| Hu Che-Jen | Vice President | May 2026 | Jun 30, 2026 | 1 · $1.7M |
| Chen Ming-Tsung | Vice President | May 2026 | May 7, 2026 | none |
| Cheng Tzyy-Ming | Vice President | May 2026 | May 7, 2026 | none |
| Chuang Yu-Chih | Vice President | May 2026 | May 7, 2026 | none |
| Hsu Shih-Chieh | Vice President | May 2026 | May 7, 2026 | none |
| Hsu Shu-Fen | Vice President | May 2026 | May 7, 2026 | none |
| Kuo Lin-Wu | Vice President | May 2026 | May 7, 2026 | none |
| Lin Ming-Yu | Vice President | May 2026 | May 7, 2026 | none |
| Liu Shih-Wei | Vice President | May 2026 | May 7, 2026 | none |
| Lu Chia-Ao | Vice President | May 2026 | May 7, 2026 | none |
| Shen Ying-Sheng | Vice President | May 2026 | May 7, 2026 | none |
| Tan Wen Yi | Vice President | May 2026 | May 7, 2026 | none |
| Tzou Shih-Fang | Vice President | May 2026 | May 7, 2026 | none |
| Chang Oliver | SVP | May 2026 | May 7, 2026 | none |
| Chen Jin-Shuang | CHRO & VP | May 2026 | May 7, 2026 | none |
| Hung Kuei-Chun | SVP | May 2026 | May 7, 2026 | none |
| Liao Ching Yu | General Counsel & VP | May 2026 | May 7, 2026 | none |
| Wu Chung-Hsien | CISO & SVP | May 2026 | May 7, 2026 | none |
| Wang Jason Shi | Chief Executive Officer | Mar 2026 | Mar 18, 2026 | none |
| Hung Chia-Tsung | Chairman & CSO | Mar 2026 | Mar 18, 2026 | none |
| Hsu Ming-Chih | President & COO | Mar 2026 | Mar 18, 2026 | none |
| Name | Role | First filing | Latest filing | Sales, 12 months |
|---|---|---|---|---|
| Chen Lih-Juann | director | Mar 2026 | Mar 18, 2026 | none |
| Hsu Wen Hsin | director | Mar 2026 | Mar 18, 2026 | none |
| Shiu Kuang-Si | director | Mar 2026 | Mar 18, 2026 | none |
| Shyu Jyuo-Min | director | Mar 2026 | Mar 18, 2026 | none |
| Wang Su-Lin | director | Mar 2026 | Mar 18, 2026 | none |
| Wu Ling-Ling | director | Mar 2026 | Mar 18, 2026 | none |
A person is listed as reporting now after a filing in the last fifteen months. The record shows when someone last filed; it does not say why they stopped. Each name links to the filings on sec.gov.