+852 3427 2328

+852 3427 2328

About Us

Your Best Partner To Business Success

Normsun's mission is becoming

YOUR PARTNER TO BUSINESS SUCCESS”.


We provides ONE-STOP professional services and tailor-made advice to help meet your business objectives.

20+ Years of Services

We have over 20 years of experience in providing company secretarial, accounting, auditing and other professional services. 

Numerous Business Partners

We collaborate with numerous business partners to provide comprehensive services.

Global Expertise

Our business coverage reaches most of the Asia Pacific together with parts of Europe, North America and the Middle East.

Member of Allinial Global Association

Through the Transfer of Excellence program, we have access to the experiences and knowledge pools of all 248 firms within the Allinal Global Association.

Our Global Expertise

Our business coverage reaches most of the Asia Pacific and parts of Europe, North America and the Middle East.


With our accumulated global experiences, we ensure that our advice helps you drive competitive advantages.

Our Founder — Tim C.O. Koo

Our founder, Tim C.O. Koo, has worked in one of the Big Four international audit firm for nearly ten years with profound audit and assurance experiences for various locally-listed companies and multinational groups from a wide range of industries. Besides, he possesses extensive experiences in internal control reviews for multinational clients located in different cities, including Hong Kong, Macau, Shanghai, Beijing, Japan, Korea, Singapore and the Philippines. Recently, he is also active in providing consultancy services for US based subsidiaries in Hong Kong and the Asia Pacific on meeting the requirements of the Sarbanes Oxley Act.


At present, Tim C.O. Koo possesses the following professional qualifications and memberships:


  • Fellow, The Hong Kong Institute of Certified Public Accountants (FCPA (Practising))
  • Fellow, The Association of Chartered Certified Accountants (UK) (FCCA)
  • Fellow, The Taxation Institute of Hong Kong (FTIHK)
  • Associate, The Institute of Chartered Accountants in England and Wales (ACA)
  • Member, The Society of Chinese Accountants and Auditors (MSCA)
  • Member, Hong Kong General Chamber of Commerce
  • Member, The Hong Kong Institute of Directors
  • Certified Tax Advisor (CTA)
  • BBA (Hons) in Accounting & Finance, The University of Hong Kong

Want to know more about our service?

Please leave your contact information below. We will contact you within 1 work day.

Company name*

If you don't have a company, please type N/A.

Required field!
Name* Required field!
Email* Required field!
Phone* Required field!
Please select* Required field!
Message Required field!

We won't send trash message.

View Details
- +
Sold Out