Over the years, he carefully taught selected students. Sum Nung contributed in training many students who have helped to preserve and disseminate their style throughout the world. Among which are; Felix Leong, Sum Jee, Cheung Chut (Cheung Bo’s son), Kwok Jin Fen, Leung King-chiu (Leung Dai Chiu), Dong Chuen Kam, Ngo Lui Kay, Kwok Wah Ping, Lee Chi Yiu, Wong Wah (Tom Wong).