Board of Directors



Mr. Sim Guan Seng

Independent Non-Executive Chairman

Mr. Sim Guan Seng was appointed as Lead Independent Director of our Company on 06 July 2019. He is currently the Chairman of the Audit Committee and a member of the Nominating Committee. 

Mr. Sim has over three decades of experience in accounting and auditing related fields. He started his career in 1983 at Arthur Anderson as an auditor, then he joined GK Goh Stockbrokers (S) Pte Ltd as an operations manager in 1987. In 1992, he established a sole proprietorship to practise as a public accountant and merged his practice with Baker Tilly TFW in 2004. He was the Managing Partner of Baker Tilly TFW from 2010 to 2019. He is currently a partner of Baker Tilly TFW LLP.

Mr. Sim has a Bachelor of Accountancy from the National University of Singapore. He is also a practicing member of the Institute of Singapore Chartered Accountants and a certified internal auditor (as conferred by the Institute of Internal Auditors).


Mr. Poh Kok Hong

Executive Director

Mr. Poh Kok Hong was appointed as Executive Director and CEO of Darco Water Technologies Ltd on 1 July 2019. Mr. Poh has over 20 years of experience working in military and commercial aviation industry. In the past 10 years, he has worked in various multi-billion dollars multi-national corporations; such as StandardAero, NORDAM and Goodrich. Mr. Poh has extensive regional experience managing business operations in key growth countries in Asia. 


Mr. Poh has a Bachelor of Science in Aerospace Engineering and a Master of Science in Aerospace Engineering with Minor in Electrical Engineering from Mississippi State University, USA. 


Mr. Zhao Yong Chang

Executive Director

Mr. Zhao Yong Chang was appointed as Executive Director on 30 June 2021. Mr. Zhao is a veteran in the water and environmental business. During his 30 years professional experience, he was involved in the proposal, design, construction, commissioning, and operation of various projects and plants. As Chief Operating Officer, Mr. Zhao is responsible for supervising the group’s operation in terms of project sales and execution. Mr. Zhao also takes the lead in the development of new investment projects for the Group. In addition, he assists the CEO in the formation of the Group’s policies. 


Mr. Zhao holds a Bachelor’s degree from Tsinghua University and a Master’s degree from National University of Singapore. Mr. Zhao contributes to the steady growth of the Group by leveraging on his extensive networks in China, Singapore and other ASEAN countries. 



Ms. Gn Jong Yuh Gwendolyn

Independent Director

MS. GN JONG YUH GWENDOLYN was appointed as the Independent Director of our Company on 02 May 2019. She is currently the Chairman of the Nominating Committee and a member of the Audit and Remuneration Committee.

Ms Gn has more than 20 years’ experience as a Corporate Lawyer, specialising in corporate finance and capital markets in Singapore and the Asian region. Ms Gn is currently an Equity Partner in ShookLin & Bok LLP where she actively advises both Main Board and Catalist listed companies, SMEs, MNCs and financial institutions on areas of fund raising, IPOs / RTOs / dual listings, mergers and acquisitions, corporate structuring and corporate governance. Ms Gn graduated with LLB Hons (Second Upper) from the National University of Singapore in 1994 and was called to the Singapore bar as an Advocate and Solicitor in 1995. Ms Gn is a winner of the International Law Office and Lexology Client Choice Award 2014 in Singapore for Capital Markets and has been recognised as a leading capital markets and corporate finance lawyer in Asialaw Leading Lawyers. She has been named as an expert in Euromoney’s Guide to the World’s Leading Women in Business Law and World’s Leading Capital Markets Lawyers.


Mdm. Joanna Ong Joo Mien

Independent Director

Mdm. Joanna Ong Joo Mien was appointed as an Independent Director of our Company on 2nd May 2019. She is currently the Chair of the Remuneration Committee and a member of the Audit Committee and Nominating Committee. Mdm. Ong has more than 25 years of experience in accounting and financial management.

Joanna is currently the Director of J.Ong Business Services, a corporate services consulting firm, which specialises in providing finance services and management strategy to SMEs in Singapore.

 Prior to establishing her consultancy firm, Joanna was the Vice-President of Finance under the consumer market group in StarHub Limited (listed in SGX-ST).

Prior to StarHub, she has worked for more than 10 years with Singapore Cable Vision Ltd. She started her career with Price Waterhouse CPA before joining Singapore CableVison Ltd.

Joanna has a Bachelor of Accountancy from the National University of Singapore. She is a member of both the Institute of Singapore Chartered Accountants (ISCA) and Singapore Institute of Directors.

 She is currently an Independent director and chair of the audit committee at Asian Pay Television Trust (listed business trust in SGX-ST).


Mr. Kong Chee Keong

Independent Director

Mr. Kong Chee Keong was appointed as an Independent Director of our Company on 06 July 2019. He is currently a member of the Audit Committee, Nominating Committee, and Remuneration Committee. Mr Kong is a Chartered Accountant with more than 25 years of experience in corporate strategy development, private equity investment and financial accounting.

Mr. Kong is the Managing Director of a boutique corporate advisory company, Penvest Co Pte Ltd, serving both private and public listed companies in sectors such as healthcare and renewable energy. He currently serves on the board of a SGX Catalist listed JEP Holdings Limited as an independent director and Audit Committee Chairman.

Mr. Kong holds a Master of Business Administration from Manchester Business School and a Bachelor of Accountancy (Hons) from the National University of Singapore. He is a full member of the Institute of Singapore Chartered Accountants.