Mr Ong Sim Ho > Drew & Napier LLC > Singapore, Singapore > Lawyer Profile

Drew & Napier LLC

Work Department

Tax & Private Client Services


Director, Tax & Private Client Services


Sim Ho began his tax law career with the Inland Revenue Authority of Singapore where he advised the Authority principally on Corporate Income Tax, Goods and Services Tax, and tax treaty negotiations.

Sim Ho is dual-qualified as a lawyer and Chartered Accountant. He is a barrister of England and Wales, called by Lincoln’s Inn, and an Advocate & Solicitor of the Supreme Court of Singapore. He is a Fellow Chartered Accountant in Singapore, member of the Singapore Institute of Directors, an Accredited Tax Advisor for Income Tax and GST of the Singapore Institute of Accredited Tax Professionals, an Alumni Advisory Board member at the Nanyang Business School, NTU, and a member of the Valuation Review Board. Sim Ho also sits on the boards of AIA Singapore Pte Ltd.

Sim Ho’s forte lies in the truly multi-disciplinary approach that he brings to his cases. His approach incorporates legal, finance, risk governance, and accounting perspectives. Sim Ho is also well recognised by clients and peers for his critical and rigorous legal analysis and conceptual thinking towards problem solving. During the past 20 years, he has built a substantive practice-focus in tax litigation and dispute resolution. He also has expertise in oil and gas matters. Clients appreciate his willingness to make judgment calls when it comes to grey areas, as well as his extensive industry experience and commercial perspective.


English, Chinese


  • Member, Law Society of Singapore
  • Member, Singapore Academy of Law
  • Member, Singapore Institute of Directors
  • Member, Alumni Advisory Board at the Nanyang Business School, NTU
  • Member, Valuation Review Board
  • Fellow Chartered Accountant, Singapore
  • Principal Examiner, Taxation, Foreign Practitioners Examination, Singapore Institute of Legal Studies
  • Member, Board of Directors of AIA Singapore Pte Ltd


  • LL.B. (Hons) (London) (1993)
  • B.Acc (Hons), Nanyang Technological University of Singapore (1993)
  • Barrister-at-law, Lincoln’s Inn
  • Advocate & Solicitor of the Supreme Court of Singapore
  • Accredited Tax Advisor for Income Tax and GST of the Singapore Institute of Accredited Tax Professionals
  • Fellow Chartered Accountant, Singapore

Lawyer Rankings

Singapore > Projects and energy: local firms

The projects, energy and infrastructure group at Drew & Napier LLC is headed by Jimmy Yim and leverages on the strengths of multi-disciplinary resources within the firm such as dispute resolution, M&A and project finance. The team’s contentious and non-contentious specialists work on projects involving power and energy, telecommunications, transportation, waste disposal and construction. Ong Sim Ho is an expert in oil and gas matters, with a focus on work surrounding national oil companies. Mahesh Rai represents clients in energy and infrastructure work while Renu Menon is experienced in syndicated and bilateral lending.

Singapore > Private wealth and family law – local firms

Drew & Napier LLC has continued to develop its presence in advising foreign clients on family trust and family office structures in Singapore. The firm has a number of experienced tax specialists and makes use of its strong connections to China and Indonesia. The team has advised on a series of new trust products and the migration of trusts to Singapore. Ong Sim Ho is an experienced tax specialist with a major emphasis on private wealth planning and private client work, while Seah Ching Ling is an emerging talent in this field. Randolph Khoo is a leading name in private client disputes and family wealth cases.

Singapore > Tax: local firms

(Leading individuals)

Ong Sim HoDrew & Napier LLC

Drew & Napier LLC covers the spectrum of tax law advisory work in Singapore, including corporate tax, enterprise tax risk management and private wealth planning. The firm’s particular strength is tax litigation and it represents clients before tax tribunals and the Supreme Court, in matters related to goods and services tax, property tax and stamp duties. Ong Ken Loon’s fortes area cross-border issues, handling tax disputes with the IRAS and representing clients in appeals to the tax tribunals and Singapore courts. She leads the team that includes Ong Sim Ho, who is dual-qualified as a lawyer and chartered accountant, as well as a barrister of England and Wales, and an advocate and solicitor of the Supreme Court of Singapore.