Hong Kong’s Role as a Global Offshore Renminbi Hub: What Business Owners Need to Know in 2025

Hong Kong is the world’s pre-eminent offshore renminbi (RMB) hub, a status that directly affects the compliance and operational landscape for any company registered in the city. As of December 2024, the Hong Kong Monetary Authority (HKMA) reported that offshore RMB deposits in Hong Kong stood at approximately RMB 1.1 trillion, representing over 70% of global offshore RMB deposits. For business owners, this means that engaging in RMB-denominated trade, investment, or financing in Hong Kong is not merely an option but a structural feature of the jurisdiction — and one that carries specific regulatory obligations under the Companies Ordinance (Cap. 622) and related legislation.

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Why Hong Kong Became the Offshore RMB Centre

Hong Kong’s dominance as an offshore RMB hub is the result of deliberate policy design by the Central Government of the People’s Republic of China and the Hong Kong Special Administrative Region (HKSAR) Government, combined with the city’s existing strengths as an international financial centre. The key enabler was the establishment of the RMB Clearing Agreement in 2003, which allowed Hong Kong banks to offer RMB deposit, exchange, and remittance services. This was followed by the launch of the RMB Trade Settlement Pilot Scheme in 2009, which permitted Hong Kong companies to settle cross-border trade transactions in RMB.

The Hong Kong Monetary Authority (HKMA) has stated:

"Hong Kong is the world’s largest offshore renminbi (RMB) hub, with the most extensive and diversified pool of RMB liquidity outside the Mainland. The city’s RMB real-time gross settlement (RTGS) system operates around the clock, processing over RMB 1.5 trillion in daily turnover."

This infrastructure means that a Hong Kong company can open RMB-denominated bank accounts, issue RMB bonds (known as "dim sum bonds"), access RMB-denominated loans, and invest in RMB-denominated securities — all without leaving the jurisdiction. For businesses that trade with Mainland China, this eliminates the need to convert currencies through third-party jurisdictions, reducing transaction costs and settlement risk.

The Regulatory Framework Governing RMB Activities in Hong Kong

Any Hong Kong company engaging in RMB-denominated activities must comply with a specific set of regulations that differ from those governing HKD or foreign currency transactions. The primary regulatory bodies are the HKMA (for banking and payment systems), the Securities and Futures Commission (SFC) (for securities and investment products), and the Companies Registry (CR) (for corporate record-keeping and disclosure).

Under the Banking Ordinance (Cap. 155), only licensed banks in Hong Kong may accept RMB deposits from the public. However, a Hong Kong company can hold RMB in a current or savings account at any licensed bank that offers RMB services. The HKMA imposes a daily conversion limit for individuals (RMB 20,000 per person per day), but there is no statutory limit for corporate entities, though individual banks may set their own internal limits based on risk assessment.

For companies that issue RMB-denominated bonds or other securities, the Companies (Winding Up and Miscellaneous Provisions) Ordinance (Cap. 32) and the Securities and Futures Ordinance (Cap. 571) require disclosure of the currency denomination in offering documents and annual returns. The Companies Ordinance (Cap. 622) requires that all financial statements filed with the Companies Registry be denominated in HKD unless the company has obtained specific approval from the Registrar to use a different reporting currency. This is a critical compliance point: if your company conducts significant RMB business, you may need to maintain dual-currency accounting records — one set in RMB for internal management and one set in HKD for statutory filing.

HSIC Code Implications for RMB-Focused Businesses

When registering a company in Hong Kong, you must select a primary business activity from the Hong Kong Standard Industrial Classification (HSIC) Version 2.0, maintained by the Census and Statistics Department. For businesses that operate as an offshore RMB hub — for example, by providing RMB trade settlement services, RMB-denominated lending, or RMB investment advisory — the appropriate HSIC codes are found in Section K (Financial and Insurance Activities).

Relevant HSIC codes include:

• HSIC 64199 — Other monetary intermediation (for companies that facilitate RMB-denominated lending or deposit-taking outside the scope of licensed banking)
• HSIC 64999 — Other financial service activities, except insurance and pension funding (for RMB trade settlement and payment processing services)
• HSIC 66199 — Other activities auxiliary to financial service activities (for RMB clearing and settlement support services)
• HSIC 66300 — Fund management activities (for companies managing RMB-denominated investment funds)

Selecting the correct HSIC code is not merely an administrative formality. The Inland Revenue Department (IRD) uses HSIC codes to assess a company’s business profile for tax audit purposes. A company that engages in RMB-related financial services but registers under a non-financial HSIC code (e.g., HSIC 82990 — Other business support service activities) may trigger an IRD inquiry or face penalties for incorrect classification under the Business Registration Ordinance (Cap. 310).

Practical Compliance Obligations for RMB-Active Companies

If your Hong Kong company holds RMB deposits, issues RMB instruments, or provides RMB-denominated services, you must ensure the following compliance measures are in place:

1. Statutory Records in HKD: As noted, the Companies Ordinance (Cap. 622, Section 373) requires that financial statements filed with the Companies Registry be prepared in HKD. If your internal books are kept in RMB, you must maintain a reconciliation schedule showing the HKD equivalent at the exchange rate prevailing on the balance sheet date. The IRD accepts financial statements in foreign currencies for tax filing purposes, but the Companies Registry does not — so dual-currency records are essential.

2. Business Registration Renewal: When renewing your Business Registration Certificate annually, you must confirm that your business activities remain consistent with the HSIC code originally declared. If your company has expanded into RMB-related services since incorporation, you must file a Notification of Change of Business Particulars (Form IRC 3111A) with the IRD within one month of the change.

3. Anti-Money Laundering (AML) Compliance: The Anti-Money Laundering and Counter-Terrorist Financing Ordinance (Cap. 615) applies to any company that engages in "designated non-financial businesses and professions" (DNFBPs), which includes money service operators and certain financial intermediaries. If your company provides RMB remittance or currency exchange services, you must register with the Customs and Excise Department as a Money Service Operator and implement customer due diligence procedures.

4. Tax Filing Considerations: The IRD taxes profits that arise in or are derived from Hong Kong. For a company that earns income from RMB-denominated transactions, the source of profits analysis follows the same principles as for HKD transactions. However, foreign exchange gains or losses on RMB holdings must be reported separately in the tax return. The IRD’s Departmental Interpretation and Practice Notes (DIPN) No. 21 provides guidance on the tax treatment of foreign exchange differences.

The Dim Sum Bond Market and Corporate Opportunities

One of the most significant advantages of Hong Kong’s offshore RMB hub status is the ability to issue "dim sum bonds" — RMB-denominated bonds issued in Hong Kong but outside Mainland China. As of 2024, the cumulative issuance of dim sum bonds exceeded RMB 2.5 trillion, according to data from the HKMA.

For a Hong Kong company, issuing dim sum bonds can provide access to a deep pool of RMB liquidity at competitive interest rates, often lower than onshore RMB borrowing costs. However, the issuance process is regulated by the SFC under the Securities and Futures Ordinance (Cap. 571) and the Companies (Winding Up and Miscellaneous Provisions) Ordinance (Cap. 32) . Key requirements include:

• Publishing a prospectus that complies with the SFC’s Code on Unlisted Structured Investment Products
• Appointing a lead arranger that is a licensed corporation under the SFC
• Filing the prospectus with the Companies Registry within seven days of issuance

Companies that issue dim sum bonds must also update their HSIC code if the issuance constitutes a material change in business activity. For example, a manufacturing company that issues RMB bonds to fund expansion would not need to change its HSIC code, but a company that establishes a dedicated RMB bond issuance platform as a separate line of business would need to add HSIC 64999 — Other financial service activities.

Future Developments and Business Implications

The HKSAR Government and the Central Government have announced several initiatives to deepen Hong Kong’s offshore RMB market. The Mutual Access Scheme between Hong Kong and Mainland bond markets, launched in 2017 and expanded in 2023, now allows offshore investors to trade RMB-denominated bonds in both directions. The Cross-Boundary Wealth Management Connect Scheme, introduced in 2021 and expanded in 2024, permits residents of the Greater Bay Area to invest in RMB-denominated wealth management products distributed by Hong Kong banks.

For business owners, these developments mean that the range of RMB-denominated financial products available in Hong Kong will continue to expand. Companies that maintain RMB bank accounts and RMB-denominated investment portfolios will benefit from greater liquidity and more competitive pricing.

However, regulatory complexity will also increase. The HKMA and SFC have signalled that they will enhance supervision of offshore RMB activities, particularly in areas such as cross-border data flow and anti-money laundering. Companies should expect more frequent compliance audits if they engage in high-volume RMB transactions.

Practical Takeaway

Hong Kong’s role as the global offshore RMB hub is not a static fact but an evolving regulatory and commercial reality. For any company registered in Hong Kong that deals with Mainland China — whether through trade, investment, or financing — understanding the compliance obligations arising from RMB-denominated activities is essential. The key steps are: (1) verify that your HSIC code accurately reflects your RMB-related business activities; (2) maintain dual-currency accounting records for statutory filing purposes; and (3) ensure that any RMB-denominated securities issuance complies with SFC and Companies Registry requirements.

If you are unsure which HSIC code applies to your company’s RMB-related operations, use the HSIC Code Finder at /hsic-finder to identify the correct classification and avoid compliance penalties.