R ichard Chang is the vice chairman of ASE Technology Holding (Advanced Semiconductor Engineering), the world's largest provider of independent semiconductor manufacturing services in assembly and test. He runs the company alongside his brother, Jason Chang, who serves as chairman. The brothers have been instrumental in building ASE into a critical partner for the global electronics industry, packaging chips for major tech firms like Apple and Qualcomm.

In addition to his role in the semiconductor sector, Richard Chang is a significant investor in real estate. Along with his brother, he is a main backer of Sino Horizon, a real estate developer with properties in mainland China. His wealth is derived from his stakes in these major enterprises, reflecting a diversified portfolio that spans high-tech manufacturing and property development.