Saw Choo Theng was a prominent figure in the rubber industry, banking, and finance in Malaya and Singapore. He hailed from Wushan Village, Jinjiang, Fujian Provine, and was the second son of Saw Soon Choo. Born in 1902 in his hometown, he later migrated to Penang, where he studied at Penang Free School. He rose to prominence in the mid-1930s, amassing assets worth billions. Together with his brother Saw Seng Kew, Koh Pen Teng, and Ong Keng Seng, he co-founded Syn Thong & Co., a major rubber company. After World War II, the company was reorganized into Saw Seng Kew & Co. He was also instrumental in establishing Southern Banking Limited, which expanded its operations to Penang, Kuala Lumpur, and beyond. Additionally, he served as Chairman of United Malayan Banking Corporation. In the rubber plantation sector, Saw Choo Theng owned tens of thousands of acres of rubber estates and held the position of Chairman of the Rubber Trade Association of Penang. He also ventured into manufacturing and was Chairman of Singapore Battery Manufacturing Co. Ltd. Beyond his business ventures, Saw Choo Theng actively participated in social and community affairs. He served as a board member of the Penang Chinese Chamber of Commerce, President of the Federation of Chin Kang Association of Malaysia, Chairman of the Chin Kang Hoay Kuan in Penang, and Chairman of the Saw Khaw Lean (Heah) Chong Shu clan association in Malaya. He also presided over the Penang Chinese Swimming Club and held key positions in the Penang Old Frees Association and the Penang Free School Board of Trustees.