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How do I register an overseas company in Hong Kong (Part 16, registered non-Hong Kong company)?

An overseas company that establishes a place of business in Hong Kong must register with the Companies Registry within one month on Form NN1. You file certified copies of its constitution, incorporation certificate and latest accounts, plus the business registration notice. The fee is HK$1,545 online or HK$1,720 on paper.

When Within one month after setting up a place of business in Hong Kong (s.776, Part 16 of Cap. 622). Failing to apply is an offence for the company, its responsible persons and any agent who permits it: a fine of HK$50,000 plus HK$1,000 for each day it continues.

What to file

  • Form NN1 with the company name, principal place of business in Hong Kong, particulars of directors and secretary, and the authorised representative.
  • Certified copies (certified by a person listed in s.775, such as a notary, lawyer, accountant or company officer) of the constitution (charter, statutes or memorandum and articles).
  • Certificate of incorporation or equivalent.
  • Latest published accounts.
  • IRBR2 (Notice to Business Registration Office).
  • Certified English or Chinese translations where documents are in another language.

Authorised representative Someone who can accept service of process in Hong Kong: an individual resident in Hong Kong, a firm of solicitors, a solicitor corporation, or a CPA firm or corporate practice.

Fees HK$1,545 online or HK$1,720 hard copy. If the business is not already registered, the business registration fee and levy are also payable with IRBR2.

Identification Since 27 December 2023, the 8-digit business registration number identifies the company.

Afterwards The company has ongoing filing duties such as an annual return; see the next question.

A branch is not a separate legal entity from the overseas parent.

  • Companies Ordinance (Cap. 622), s.775
  • Companies Ordinance (Cap. 622), s.776
  • Companies Ordinance (Cap. 622), s.777

Sources

Applies to 2026 · Last reviewed 29 October 2026

General information for business owners, not legal, tax or professional advice. Rules change, so check the sources or ask a licensed professional before you act.

    How do I register an overseas company in Hong Kong (Part 16, registered non-Hong Kong company)? | OCTIS