東亞銀行
In November 1918, Li co-founded the Bank of East Asia with Fung Ping-shan, Kan Tung-po and his brother Li Koon-chun. Li Tse-fong became the bank's assistant manager, manager and later life director. He was also director of the China Emporium, China Provident Co., Ltd., Green Island Cement Co., Ltd., A. S. Watson Co, Ltd. and various public companies.