He was Managing Partner of Hin Giap, the largest rubber exporter in Penang, and one of the biggest employers of labour of Malaya in 1931;[8] Chairman of Amalgamated Amusements (1932–1937); Chairman of Lam Seng Cheong (Ipoh); Chairman of Synn Cheong and Company (Taiping); Director of Khiam Seng Trading Company (Ipoh); Director of Kim Hin Company; and owner of Heah Joo Seang Rubber Estates.[5] He was also the Proprietor of the Wembley Dance Hall, Penang.