Hong Kong Monetary Authority

The Hong Kong Monetary Authority (HKMA) is Hong Kong's monetary and banking authority. Established in 1993, it manages the Exchange Fund, operates the linked exchange-rate system, supervises authorised institutions and supports financial infrastructure. The Financial Secretary sets the monetary-policy objective; the Monetary Authority implements it.

Currency defence

The Hong Kong dollar operates through currency-board arrangements centred on a linked rate of HKD 7.80 per United States dollar, with convertibility undertakings at 7.75 and 7.85. Exchange Fund assets support the monetary base. Exchange-rate stability relies on convertibility undertakings and automatic interest-rate adjustment. When inflows trigger the strong-side undertaking, HKMA sales of Hong Kong dollars expand the Aggregate Balance and tend to reduce Hong Kong dollar interest rates; HKMA purchases under the weak-side undertaking have the opposite effect.

In August 1998 the authorities bought Hong Kong equities and futures during the Asian financial crisis to counter a combined currency and equity attack. HKMA's contemporary annual report establishes the intervention and its rationale. The episode was exceptional and does not make equity purchase an ordinary currency-board tool.

Sanctions and payment infrastructure

HKMA's August 2020 circular distinguishes United Nations sanctions implemented in Hong Kong law from unilateral foreign sanctions, which do not themselves create Hong Kong legal obligations. The circular asks banks to assess legal, business and commercial risks and treat customers fairly. This is a description of that guidance, not clearance for a particular transaction under current foreign or Hong Kong law. A bank’s customer decision should not automatically be attributed to an HKMA order.

HKMA has also participated in Project mBridge on cross-border central-bank digital currency infrastructure. The Bank for International Settlements records minimum viable product status in mid-2024 and its October 2024 announcement that it was handing the project to the partners. Its project record now classifies the BIS project as concluded, so mBridge should not be described as currently BIS-led. The same record describes real-value pilots and transactions subject to jurisdictional preparedness. These milestones do not establish universal availability, clearance for particular transfers or a completed replacement for dollar clearing.

The institution's statecraft significance lies in defending monetary stability while managing exposure to competing legal and payment systems. Claims that HKMA can immunise banks from foreign secondary effects, or that mBridge proves de-dollarisation, exceed the evidence.

See also

Hong Kong market counter-intervention against the double play (1998) · Currency-peg attack · Hong Kong Autonomy Act (2020) · Dollar-clearing denial · mBridge · Economic statecraft

Sources

• Hong Kong Department of Justice, Exchange Fund Ordinance, Cap. 66, ss. 3, 5A and 5B, consolidated version dated 19 September 2019 in the current legislation dataset, downloaded 3 November 2026.
• Hong Kong Department of Justice, Banking Ordinance, Cap. 155, ss. 7 and 16, consolidated version dated 17 September 2026 in the same current legislation dataset, downloaded 3 November 2026.
• HKMA, 'Functions and Responsibilities in Monetary and Financial Affairs' (27 June 2003).
• HKMA, Annual Report 1998, Monetary Stability, p. 38.
• HKMA, Annual Report 2025, About the HKMA, pp. 37-38.
• HKMA, 'How Does the LERS Work?', revised 22 October 2025, checked 3 November 2026.
• HKMA, Financial Sanctions Circular (8 August 2020), pp. 1-2; full text checked 23 October 2026.
• Bank for International Settlements, Annual Report 2024/25 (2025), p. 119; full report source checked 23 October 2026.
• Bank for International Settlements, 'Project mBridge', institutional project record checked 3 November 2026.