Benson Puah (President)

Benson (ACS 1964 – 1975) is currently the CEO of both The Esplanade Co Ltd and the National Arts Council. He sits on numerous boards and committees, among them the chair of the Association of Asia Pacific Performing Arts Centres and the immediate Past Chair of the New York-based Performing Arts Society for the Performing Arts. For his contributions to the arts in Singapore, he was presented with the title Chevalier in the Ordre des Arts et des Lettres by the French government. Benson serves as Vice-Chair of both the ACS Board of Governors and Board of Management, ACS (Independent).

Cheo Chai Hong (1st Vice President)

Chai Hong (ACS Class of 1968) is Executive Vice President, Head Corporate Planning and International Strategy. He holds a Bachelor of Business Administration (Hons) from the University of Singapore and has more than 30 years of experience in corporate banking, relationship management and credit approval. He is currently an OBA representative on the
ACS BOG and chairs the Sports Sub-Committee of the ACS OBA Management Committee; he is also the current Honorary Secretary of the Singapore Rugby Union. Chai Hong is married
to Elaine, an old girl from MGS.

Lock Wai Han (2nd Vice President)

Wai Han is the Chief Corporate Officer in CapitaMalls Asia. Prior to this, he spent 21 years in the civil service where he held key positions such as Commissioner Immigration & Checkpoints Authority, Director Criminal Investigations Department in the Singapore Police Force and Deputy Secretary (Information and the Arts). He schooled in ACPS, ACSS and ACJC (Class of 85), and subsequently in Cambridge and Stanford Graduate School of Business. Wai Han is married to Mapel and they have 2 boys studying in ACS (Primary).

Chandra Mohan Rethnam (Honorary Secretary)

Chandra is an equity partner in the law firm, Rajah & Tann LLP. A true blue ACSian - ACPS (1974), ACS (1978) and ACJC (1980), he has been a member of the ACS OBA since 1991, holding the position of Honorary Secretary from 1995 to 2005 and from 2007 to date. Chandra did his first law degree in NUS and subsequently his LLM in the University of Cambridge. He also serves on the ACS Board of Governors and the Board of ACS (International).

Rayson Seow (Assistant Honorary Secretary)

Rayson (ACS Class of 75) is a Financial Services Manager with Prudential where he leads a team of financial consultants. A devout Christian and avid footballer, he organises outreach events through football for the Christian Sports Club, the Bible Society and the Methodist Welfare Services. Rayson is married with 2 children, aged 21 and 15. His son is studying in ACS (Barker Road).

Lim Jen Howe (Honorary Treasurer)

Jen Howe is a partner of Thong & Lim, a local accounting and auditing company. He schooled in ACS, from ACPS right through to ACSS (‘O’ Level Class of 69 and ‘A’ Level Class of 71), and has been actively involved in the ACS OBA since the early 1990s. Jen Howe is an ACS OBA representative on the ACS Board of Governors. He also served on the ACS (Independent) Board of Management since 1993, and stepped down only this year.

Lim Tat (Assistant Honorary Treasurer)

Tat (ACJC Class of 81) holds an MBA/LLM and MSc (Construction Law and Arbitration) and is currently the managing partner of Aequitas Law LLP, a Singapore law firm with a niche practice. He spent 12 glorious years in the ACS family of schools, from primary right through to junior college. In school, he actively participated and represented ACS in gymnastics, scouts, Christian fellowship and choir. Tat is married to Angeline and they have 2 boys and a girl. Needless to say, both boys are in ACS.

Mervin Lim (Committee Member)
Mervyn (Pre-U Class of 76), the CFO and Executive Director of Solar Silicon Resources Group, is no newcomer to the ACS OBA as he has served on the committee before. An ACS thoroughbred, he enjoyed the final years of pre-university education in ACS Barker Road before this was replaced by ACJC. Mervyn is married to Serena, an old girl from MGS; they have three boys - Shaun (11) the youngest is studying in ACS (Primary) while his brothers Mark (16) and Nicholas (14) are in the Singapore American School.

Joy-Marie Toh (Committee Member)

Joy-Marie Toh (ACJC Class of 1991) is humbled by the privilege to serve ACS. She is a 5th generation ACSian and her
grandfather was the late Mr. Chen Jan Jee, former ACS OBA president from 1955-57. A graduate from Smith College in Northampton, Massachusetts, USA with a BA in Economics and International Relations from Smith College in Northampton, Massachusetts, USA, Joy-Marie has had extensive experience in the financial world and was previously an Executive Director of Goldman, Sachs & Co. in Hong Kong. She is married to banker Kanad Virk and is now a full-time mother of 3.

Timothy Chew (Committee Member)

Timothy (ACS Pre-U Class of 62) is ACS through and through, from Primary and Secondary schools to Pre-University, and continuing to be of service to the Alma Mater. He has sat on various ACS boards, including the ACS Board of Governors, and is probably the ACS OBA Committee’s longest serving member. An Associate of the Chartered Insurance Institute, he owns an insurance agency. Timothy is married to Pauline and they have two grown up children.

Oon Jin Gee (Committee Member)

A two-time Olympian, Jin Gee is a grateful beneficiary of an ACS education (ACPS, ACSS & ACJC (Class of 1985). He is strategic vendor manager with a mulitnational infocomm organization and also volunteers with the Singapore National
Olympic Council, Singapore Swimming Association and Anti-Doping Singapore Board. He and his wife, Li-Min, have two sons, Darren and Colin, who are presently studying in ACS. In his spare time, Jin Gee displays musical prowess in his ability to tune a radio!

Michael Koh (Committee Member)

A leading proponent in the field of heritage promotion and conservation, Michael oversees 10 museums and heritage institutions in Singapore as CEO of the National Heritage Board (NHB). Prior to the NHB, Michael was the Director of Urban Planning and Design at the Urban Redevelopment Authority. A product of ACJS, ACSS and ACJC (Class of 79), he holds a B. A. (Arts Studies) and a B. Architecture (Honours) from the National University of Singapore, and a Master of Design Studies from Harvard University. Michael is married with two children and one son is currently studying in ACS (Junior).

Ong Tek Khoan (Co-opted Member)

As Managing Director of Templeton Asset Management, Tek Khoan helps to oversee the management of assets invested across emerging markets. A true-blue ACSian – ACPS, ACSS and ACJC (Class of 79) - he went on to Imperial College, London where he graduated with BSC (Eng) Honours and MSc degrees in 1984 and 1985 respectively. In 1993, he also earned a MBA with Distinction degree from Wharton School, University of Pennsylvania. Tek Khoan is married to Yew Khuan
and his two sons are studying in ACS (Primary).

Phang Kien Yip (Co-opted Member)

Kien Yip is the founder of Bronco Media House, a TV and film production company in Singapore. Prior to this, he was with a multi-national company as a research engineer before he ventured out to pursue his passion for film making 12 years ago. He schooled in ACPS, ACSS and ACJC (Class of 1985) before furthering his studies at Nanyang Technological University; he also obtained his Masters from the National University of Singapore. Kien Yip is married to Geraldine.

David Tan Hsien Yung (Co-opted Member)

David (ACJS Class of 1990, ACS Class of 1994 and ACJC Class of 1996) is a Family Physician in a government polyclinic. A graduate from medical school in NUS, he is also involved in undergraduate and postgraduate medical education. David hopes to contribute to the ACS OBA Management Committee and he hopes to see more of the younger ACSians connected through the various portals. He is married to his secondary school sweetheart and they have two daughters.

Colin Chen (Co-opted Member)

Colin has been in the financial services industry since he graduated from the University of Canberra. He held various roles at Union Bank Switzerland, Bank of America and the Bank of Tokyo Mitsubishi UFJ. Ltd before joining DBS Bank Ltd recently to head Structured Debt Solutions, a part of the Treasury and Markets Division. A true-blue ACSian (ACJS, ACSS and ACJC), Colin represented the School Badminton Team from Primary 4 to Junior College. He is married to Kok Peng who is teaching at Methodist Girls’ School.