Choy Kam Lok & family was born in Hong Kong. Chairman of United Laboratories, a Hong Kong-based pharmaceutical manufacturer with factories in China. Thai-born Choy's family roots trace back to Jieyang in Guangdong Province. Founded United Laboratories Limited in Hong Kong in 1990. United said in January that China's State Food and Drug Administration had approved three insulin products for sale in the country, bringing the total number of United products that can be sold in the mainland to five. Choy is active socially as a member of the Guangdong Political Consultative Conference, the All-China Federation of Returned Overseas Chinese, and the China Overseas Friendship Association. He is also the honorary president of the Shenyang Medical University and Wuhan Tongji Pharmaceutical University.