Chipmos Technologies Inc. (IMOS)
Who runs Chipmos Technologies Inc.
Officers and directors as they report to the SEC on Forms 3, 4 and 5, named as filedShih-Jye Cheng has run ChipMOS from the start: he has been a director and its president since July 1997 and its chairman since June 2003, after heading the back-end operation of Mosel, one of its founding partners, from 1992 to 1997. Two executive vice presidents, both named in July 2020, rose inside the company: Vincent Hsu, vice president of its LCDD production group since March 2012 (LCDD is the filing's short name for display panel driver assembly and testing), and D.Y. Tsai, vice president of its Q.R.A. center from June 2014 to June 2020, who also chairs and runs ChipMOS Shanghai. Silvia Su, with the group since 2000, has been vice president of finance and accounting since July 2018 and a director since July 2021. 12345678
The board has nine directors, five of them independent. Two represent Siliconware Precision Industries, the largest shareholder with 11.20% of the shares in March 2026: Kun-Yi Chien, its chief administration officer, and David Chang, one of its vice presidents. The independent directors include Jyh-Chau Wang, director and chairman of Innolux Corporation from June 2020 to May 2025, and two electrical engineering professors at National Cheng Kung University, Yeong-Her Wang and Hong-Tzer Yang. All eleven directors and officers on the SEC's insider record filed their first reports there in March 2026. 91011121314151617
On February 28, 2026 the company counted 5,823 full-time employees, against 5,747 at the end of 2025: 3,173 in general operations, 1,647 in engineering, 651 in research and development and 124 in sales, administration and finance. Nearly all of them work at its two production groups in Taiwan, 2,237 in Hsinchu and 3,580 in southern Taiwan; two people staff Shanghai and four the United States. A third of the workforce, 33%, are foreign workers on government work permits. No collective bargaining agreement covers its employees, and it reports no strikes or work stoppages. 18192021
Sources (21)
| Name | Title as filed | First filing | Latest filing | Sales, 12 months |
|---|---|---|---|---|
| Cheng Shih Jye | President | Mar 2026 | Mar 16, 2026 | none |
| Hsu Yuan-Feng | Executive Vice President | Mar 2026 | Mar 13, 2026 | none |
| Su Yu-Chiao | Vice President | Mar 2026 | Mar 13, 2026 | none |
| Tsai Teng-Yueh | Executive Vice President | Mar 2026 | Mar 13, 2026 | none |
| Name | Role | First filing | Latest filing | Sales, 12 months |
|---|---|---|---|---|
| Chang Pao-Hsin | director | Mar 2026 | Mar 13, 2026 | none |
| Chien Kun-Yi | director | Mar 2026 | Mar 13, 2026 | none |
| Lin Fu-Chen | director | Mar 2026 | Mar 13, 2026 | none |
| Tang Yuh-Fong | director | Mar 2026 | Mar 13, 2026 | none |
| Wang Jyh-Chau | director | Mar 2026 | Mar 13, 2026 | none |
| Wang Yeong-Her | director | Mar 2026 | Mar 13, 2026 | none |
| Yang Hong-Tzer | director | Mar 2026 | Mar 13, 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.