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Yonsei University Commerce, Bachelor
Seoul National University High S
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Sorin Information Technology
Chang was born in 1946 as the second son of Chang Byung-hee, honorary chairman and cofounder of YoungPoong Industry.
He is the current chairman of YoungPoong Corp., which has been a major exporter of zinc concentrate since it was founded by his father and former chairman Choi Ky-ho.
The second generation of founders still coexist under one roof although each family is focusing on their own areas: Changs on the Youngpoong holding company and electronics; and Chois on the non-ferrous metal company Korea Zinc Co.
He married Kim Hye-kyeong, daughter of former Finance Minister Kim Se-ryeon, and has two sons and a daughter. The elder son Se-joon is the CEO of YoungPoong Electronics.