Background and career
Jason Chang Chien-Sheng (Chinese: 張虔生; pinyin: Zhāng Qiánshēng; born 18 January 1944) is a Taiwanese-Singaporean billionaire business executive who is the chairman of Taiwan-based Advanced Semiconductor Engineering (ASE). On the Forbes 2024 list of the world's billionaires, he was ranked #417 with a net worth of US$6.6 billion. In September 2015, Chang received a Semiconductor Equipment and Materials International SEMI Award, which recognized his "significant achievements in the development and commercialization of copper wire in the IC assembly process".
Jason Chang's hometown is Wenzhou. Chang has three children: Danielle, Rutherford, and Madeline, who pursued creative careers, inspired by their mother, Ching Ping Chang, an artistic interior designer.
In December 2013, Chang issued a public apology for water pollution caused by untreated wastewater issuing from an ASE plant in southern Taiwan, following a TW$600,000 (US$20,300) fine imposed earlier that month from Kaohsiung City Government. Chang received honorary doctorates from National Sun Yat-sen University in Taiwan in November 2018, and National Cheng Kung University in Taiwan in July 2022.
Sources
Net-worth figure: Celebrity Net Worth (October 2026), in USD. Biography and career facts: the person's Wikipedia article and linked reporting. Snapshot date for all StarWorth figures: 28 October 2026.
