 In the late 1980s and early 1990s one of CK Tang's sons, Tang Wee Sung took control of the store.He went on to become chairman of the company in 2000 after his father’s death, and his appointment gave rise to changed operating policies, such as permitting the store to remain open on Sundays and introducing marketing strategies to increase consumer choice.In the late 1980s and early 1990s one of CK Tang's sons, Tang Wee Sung took control of the store.