281100Manufacture of engines and turbines (except aircraft, motor vehicle and motorcycle engines)
引擎及渦輪機的製造(飛行器、 汽車及電單車引擎除外)
IRD business nature helper
Business Registration wording for this activity
The business nature on your Business Registration Certificate is limited to 60 English characters printed over two 30-character lines, and 30 Chinese characters. Test your wording below.
56/60 charactersFits the certificate
9/30 characters
Certificate preview
Business Registration Certificate
商業登記證 (layout preview)
Nature of business 業務性質
The IRD prints the English business nature across two lines of 30 characters. Text that cannot break cleanly at a word boundary gets wrapped or truncated on the printed certificate.
Compliance and incorporation playbook
Licences and regulatory approvals
No sector-specific licence is mapped to this classification. Standard incorporation, business registration and the general compliance calendar below still apply, and premises-based or product-based permits can apply case by case. Emerhub confirms the exact licensing position during scoping.
Offshore profits claim feasibility
MediumWhile manufacturing engines and turbines can be conducted in Hong Kong, the nature of the business often requires local facilities and labor. Contracts are typically negotiated locally, making it less likely to qualify for offshore treatment.
Profits Tax Return deadlines under the Block Extension Scheme
With Emerhub as your tax representative, the filing deadline for the Profits Tax Return (BIR51) extends far beyond the standard one month, depending on your accounting year-end. A 31 December year-end extends the filing to August of the following year.
| Year-end | IRD code | Without representative | With Emerhub as tax rep |
|---|---|---|---|
| 1 April to 30 November | N | Within 1 month of return issue | No block extension: early May of the following year |
| 1 December to 31 December | D | Within 1 month of return issue | Mid-August of the following year |
| 1 January to 31 March | M | Within 1 month of return issue | Mid-November of the same year |
Inland Revenue Department, Block Extension SchemeVerified 2026-07-14
Standing compliance calendar
These obligations apply to every Hong Kong company regardless of industry. Each fact links to its primary government source.
Two-tiered profits tax
Incorporated businesses pay 8.25% profits tax on the first HKD 2 million of assessable profits and 16.5% on the remainder. Only one entity within a group can elect the two-tiered rates.
Inland Revenue DepartmentVerified 2026-07-14
Annual Return (Form NAR1)
A private company delivers its Annual Return to the Companies Registry within 42 days of each anniversary of incorporation. Emerhub prepares and files the NAR1 as part of company secretary service, so the deadline never reaches your calendar.
Companies RegistryVerified 2026-07-14
Business Registration Certificate renewal
Every business carries a valid Business Registration Certificate from the Inland Revenue Department, renewed on a 1-year or 3-year cycle. Emerhub handles the renewal filing and keeps the certificate current.
Inland Revenue DepartmentVerified 2026-07-14
Significant Controllers Register
Every Hong Kong company keeps a Significant Controllers Register identifying persons with more than 25% ownership or control, available for law-enforcement inspection at its registered office. A designated representative must be appointed; Emerhub acts as designated representative for client companies.
Companies RegistryVerified 2026-07-14
Company secretary requirement
Every Hong Kong company appoints a company secretary resident in Hong Kong. A corporate secretary must hold a Trust or Company Service Provider (TCSP) licence. Emerhub is a licensed TCSP and acts as company secretary for client companies.
Companies RegistryVerified 2026-07-14
MPF enrolment for employees
Employers enrol every Hong Kong employee aged 18 to 64 employed for 60 days or more in an MPF scheme. Employer and employee each contribute 5% of relevant income, capped at HKD 1,500 per month each. Emerhub administers MPF enrolment and monthly contributions under its payroll service.
Mandatory Provident Fund Schemes AuthorityVerified 2026-07-14
Annual audit with SME reporting exemption
Every Hong Kong company files audited financial statements; there is no small-company audit exemption as in Singapore. Small private companies meeting any two of revenue at or below HKD 100 million, assets at or below HKD 100 million, or 100 or fewer employees qualify for the reporting exemption and prepare simplified accounts under the SME Financial Reporting Standard, which lowers audit preparation cost. Emerhub structures client accounts under the reporting exemption wherever the criteria are met.
Companies Ordinance (Cap. 622), s.359Verified 2026-07-14
This classification includes
- boiler turbine sets, manufacturing 鍋爐渦輪機組的製造
- engines and turbines, manufacturing 引擎及渦輪的製造
- inlet and exhaust valves of internal combustion engines, manufacturing 內燃機進氣門及排氣閥的製造
- internal combustion piston engines, manufacturing 活塞內燃引擎的製造
- pistons, piston rings, carburetors and such for all internal combustion engines, diesel engines etc., manufacturing 所有內燃機、柴油引擎用的活塞、活塞環、汽化器及類似零件等的製造
- starting motors and generators for internal combustion engines, manufacturing 內燃引擎用啟動摩打及發電機的製造
- turbine generator sets, manufacturing 渦輪發電機組的製造
Classified elsewhere
These activities look similar but belong under different codes.
- electricity generator, manufacturing 發電機的製造
- motor vehicle, aircraft or motorcycle propulsion engines, manufacturing 汽車、飛行器或電單車推進引擎的製造
- turbojets and turbo propellers, manufacturing 渦輪噴氣發動機及渦輪推進器的製造
Frequently asked questions
Do I need a specific license for manufacturing?
Yes, you may need to obtain relevant manufacturing licenses depending on the type of engines or turbines produced.
How is my business classified for tax purposes?
Your business will be classified under the manufacturing sector, which may affect tax obligations and incentives.
What are the operational requirements for this activity?
You must comply with local regulations, including safety standards, environmental laws, and employment regulations.
Incorporate in Hong Kong
Starting a manufacture of engines and turbines (except aircraft, motor vehicle and motorcycle engines) business in Hong Kong?
Emerhub incorporates your company, registers the business nature above with the IRD, files every licence application, and runs your company secretary and compliance calendar. You provide the documents; Emerhub handles every government interaction.
Start incorporation with Emerhub