 The aftermath of the war saw the continued expansion of the Bank, and in 1964, Oversea-Chinese Banking Corporation of Singapore (OCBC Bank) under the stewardship of Tan Chin Tuan (its then Chairman and Managing Director) acquired a 52% majority stake in Kwong Lee Bank from the Lam family.In 1973, Kwong Lee Bank opened another branch in Bintangor.In late 1977, Yang Amat Mulia Tunku Osman Ibni Tunku Temenggong Ahmad, a member of the royal family from the State of Johor, came in as a shareholder of the bank and acquired 30% of its share capital from both OCBC Bank and the Lam family.