From Bank of Singapore website;

Bank of Singapore is a wholly owned subsidiary of OCBC Bank, Southeast Asia’s second largest bank. Headquartered in Singapore, Bank of Singapore operates from a strong and open economy. We are one of the fastest growing private banks in Asia, offering a structured and consistent approach - an open architecture product platform with robust research capabilities to deliver a total risk-based solution customised to each client’s needs. As we are strategically positioned to serve our clients across the globe with our network of offices, they also enjoy access to our parent company’s full suite of investment and commercial banking solutions such as financing, insurance and brokerage services.