Kung Yan-sum

Dr. Kung Yan-sum, (born in 1943 in Shanghai), is the younger brother of Nina Wang, the former Asia's richest woman and the late chairman of Chinachem Group, one of the biggest privately held property developer in Hong Kong. He is a doctor and he has a private clinic in Hong Kong Garden, Tsing Lung Tau, Tsuen Wan.

Since his sister's death in 2007, he has been temporarily in charge of managing Chinachem Group and as the chairman of the Chinachem Charitable Foundation. He is representing Chinachem Group to fight a legal battle against Tony Chan Chun Chuen, a Feng shui master who claimed he was the sole beneficiary of Nina's fortune.