Tan Tew Han obtained Bachelor of Science （Honors） degree from University of Singapore in 1971 and Master of Business Administration degree from University of British Columbia， Canada in 1979.
Mr. Tan started his banking career 23 years ago and has since held a number of senior posts in various foreign banks. Before his career in the banking industry， Mr. Tan was with the Administrative Service of the Singapore Civil Service. Mr. Tan joined the Overseas Union Bank （“OUB”） in 1987 and was seconded to International Bank of Singapore Limited （a then wholly-owned subsidiary of OUB） as Head of Corporate Banking and the Overseas Department. Mr. Tan was subsequently appointed as Senior Vice President of Investment Banking and Corporate Finance Division in 1992. In 1999， Mr. Tan was promoted to the position of Executive Vice President， in charge of overseeing Fund Management， Corporate Finance/Syndications and Trustee & Custodian Services. Mr. Tan retired from OUB in 2001 and was appointed to the Board of Asia Water Technology as Independent Director on 24 January 2005. Mr Tan retired from OUB in 2001. Mr Tan Tew Han is an Independent Director of Full Apex （Holdings） Limited.
