Mr. Mai studied at Tsing Hua College in Peking, China in 1910-1917. Then he went to the United States where he received an Bachelor of Arts degree from Beloit College, Wis. in 1919 and a Master of Arts degree from the University of Chicago the same year. Also he was a graduate student at Columbia University during 1919-1920.
Tso-heng Mai worked in Harriman National Bank, New York. Then he returned to China in 1921 and became assistant manager of the Hankow branch of the Industrial and Commercial Bank. He was transferred shortly to Hongkong in a like capacity and became manager of that branch in 1922, at the same time occupying the managership of the Fu Tien Bank. After that he was promoted to assistant general managership of the Industrial and Commercial Bank in 1923. He also worked as general manager of the China Trust Company.