C hang Chung-Hsing is a Taiwanese billionaire and the founder of Largan Precision, a world-leading manufacturer of miniature plastic camera lenses for smartphones and other electronic devices. With a background in molding technology, he founded the company in 1987 and, with incredible technical focus, built it into a dominant and indispensable player in the global technology supply chain.

Largan Precision is renowned for its technological superiority in designing and producing the tiny, high-performance optical lenses that are critical components in modern high-end smartphones. The company is a key supplier to Apple for its iPhone cameras, a relationship that has been a major driver of its growth and profitability. Chang's relentless focus on research and development has allowed Largan to maintain its technological edge and command high-profit margins. He has passed on the roles of CEO and chairman to his handpicked successors but remains the company's largest shareholder and guiding spirit.