School Advisory Committee (SAC)

Chairman - Mr Lawrence Lim Class of 1989

Mr Lawrence Lim is currently the General Manager of EIOS 99 Pte Ltd.  He was Singapore’s Chief of Artillery from 2014 to 2016 and successfully organised the State Funeral Procession for Singapore’s founding Prime Minister, Mr Lee Kuan Yew (March 2015); as well as the Opening and Closing Ceremonies of the 28^th SEA Games held in Singapore (June 2015). During his 25-years with the Singapore Armed Forces (SAF), Lawrence developed complex Enterprise-level HR processes and systems to transform HR structures and delivered best-in-class results for the organisation. He also won the 2006 Defence Technology Award (Research & Development) for successfully developing and operationalising the world’s first heli-portable lightweight howitzer for the SAF, the Pegasus.

Lawrence’s passion in people also saw him coaching and mentoring leaders in government organisations, MNCs and start-ups for timely leadership succession and organisational transformation. In recognition of his contributions, Lawrence won the Leading CEO Award from the Singapore HR Institute (SHRI) in September 2014, and was awarded the Singapore SOKA Association Goodwill Award in 2015 for his leadership in the 28th SEA Games.  After his retirement from the SAF in 2016, Lawrence published his book “From Doing to Dreaming – The Four Practices of Leadership”. He is a regular speaker on the topic of leadership and appeared in TEDx in April 2018.  Lawrence holds a Master’s degree from the Imperial College of London, the Naval Postgraduate School, the Royal Canadian Defence College and the Massachusetts Institute of Technology (MIT). He has very fond memories of GESS, in particular of his form teacher, Mrs Cheong Peck Yoke, who made a significant impact on his life, to which he is forever grateful.

Vice-Chairman - Mr Chiu Wu Hong Class of 1984

Mr Chiu Wu Hong is a tax partner and also leads the Private Enterprise business in KPMG Singapore.  He has a Bachelor of Business Degree (major in Accounting) from the University of Tasmania.  He is a fellow member of CPA Australia and member of Singapore Chartered Tax Professionals.  He is married with 2 daughters and his hobbies include reading, listening to music and travelling.  His most memorable teacher is Mr Lim Choon Beng who was very passionate in his work and always willing to go the extra mile to help the weaker students.  Mr Chiu hopes GESS will be a top school and produce students who do not only excel in their studies but also have a heart to give back to the society.

Member - Dr Wong Keng Mun Class of 1987

Dr. Wong Keng Mun is the Chairman of T32 Dental Group and lectures internationally on a frequent basis, including at his alma mater the University of Washington, USA and the National University of Singapore. He plays an active role in pushing the digital movement in dentistry, launching Dontia Education, a training academy dedicated to the teaching of digital implant and restorative dentistry, and Dontia Digital Innovations, a cutting-edge digital dental laboratory. As an avid believer in the value of life-long learning and constant improvement, he continually strives to evolve his dental practice. He is married with two daughters and, to this day, fondly reminisces his time at GESS, which imparted him with both knowledge and important principles of compassion and respect. Dr. Wong hopes current and future GESSIANs will be able to share the love he has for learning and find GESS the place where they nurture not only their minds, but also their hearts.

Member - Mr Muhamad Imaduddien Bin Abd Karim Class of 1993

Mr Muhamad Imaduddien is a Legal Officer with the Ministry of Defence. He is married with 1 child and his hobbies include playing badminton and volunteering. His most memorable teachers are Ms Catherine Ng and Ms Mah Lai Heng. He recalls fondly of how Ms Ng ignited his interest in playing a number of sports at the inter-class and eventually, at the zone and national level. He will also be forever grateful to Ms Mah as he would not have passed his ‘E’ Maths and Chemistry exams without her patience and guidance. Mr Imaduddien wishes for the students of GESS to remember that learning is not something that happens only in school but is something that can and should happen all the time. He also hopes that they continue to ask “why?”

Member - Mr Samuel Ang Class of 1982

Mr Samuel Ang is a senior advisor to the government of various countries on innovation,  national strategies for technology development, industry transformation, and startup ecosystems across Asia. He plays a key role in shaping innovation policies, fostering research-driven enterprises, and accelerating economic growth in emerging markets. He is also deeply involved in social and economic development initiatives and regularly speaks at international conferences on innovation, sustainability, and industry transformation. With expertise in technology, open innovation, and economic strategy, he actively bridges research, business, and policy to drive meaningful impact.

Samuel holds a Bachelor of Electrical Engineering from NUS and a Master of Business Administration from HU. Reflecting on his formative years, he credits Mr Lim Choon Beng (NCC – discipline and leadership) and Mdm Foo (Geography – fostering curiosity about the world) as his most memorable teachers. Beyond his professional commitments, Samuel enjoys sailing, walking, and reading. Married with three children, he remains deeply connected to his alma mater, inspiring Gessians to embrace resilience, adaptability, and lifelong learning—sailing "Onward" like the Chinese junk featured in the GESS crest.

Member - Ms Lee Siow Hwee Class of 1995

Ms Lee Siow Hwee is the Deputy Director (Operations Development and Planning) of People's Association (PA). She has served in PA for 23 years in various appointments, including a secondment stint as the Executive Director of Consumers Association of Singapore (CASE). She holds a Bachelor of Science (Psychology) degree from the University of Southern Queensland. A mother of two, Ms Lee finds joy in simple moments spent with her children. Her most memorable teacher and friend was the late Mr Kho Cher Chong, who, besides Chinese language, taught her important values in life. For the past decades, she and her friends had continued the tradition of their annual Chinese New Year gathering at his place. She believes in creating an environment at GESS where every student can discover their strengths and develop the skills needed to navigate today's fast-changing world with confidence and purpose.

Member - Mr Sam Liew Class of 1989

Mr Sam Liew is the Director and CEO, NCS. Sam is also Board Director on Gardens by the Bay. He also serves on the Board of Singapore Management University’s School of Computing and Information Systems and is Deputy Chairman of Singapore Polytechnic’s School of computing.  In addition, he serves as Council Member on Singapore’s IT Standards Committee. Sam has been conferred a Fellow by Singapore Computer Society. For his work with the community, Sam has been awarded the Executive of the Year - Non-profit or Government Organizations in the Singapore Business Review (SBR) Management Excellence Awards 2024.

Sam has several memorable teachers, including Mr Andrew David Monkman, who taught Sam the finer skills of Drama and Debating in the English Literary Drama and Debating Society (ELDDS).  Another teacher that Sam remembers fondly is Cikgu Yusof, who was his coach in the GESS Soccer Team.

Member - Mr Ervin Yeo

Ervin works in the real estate sector, and recently relocated home to Singapore after a stint in Shanghai with his wife and daughter. While he is not an alumni of GESS, he greatly appreciates the opportunity to serve on the School Advisory Committee. Education can change the trajectory of many lives, and he hopes that the whole GESS community can work together to give our students a well-rounded education both in and outside the classroom.