Prof Choo served as the Chairman of M1 Limited and CEO of Keppel Corporation. He is currently a Board Member of National Research Foundation, Prime Minister’s Office, and a member of Science and Engineering Research Council Board of A*STAR. He is also the Chairman of National University of Singapore (NUS) Centre for Maritime Studies, Chairman of the Board of Governors of Raffles Institution, a Management Board member of Institute for Engineering Leadership at NUS, and a member of Singapore University of Technology and Design’s Board of Trustees.

In July 2014, Mr Choo was appointed by NUS as Provost’s Chair and Professor (Practice) in the Department of Civil and Environmental Engineering, Faculty of Engineering and Department of Management and Organisation, NUS Business School.

Mr Choo was conferred the Public Service Star Award (BBM) in August 2004, The Meritorious Service Medal in 2008 and NTUC Medal of Commendation (Gold) Award in May 2007.