The Hong Kong Monetary Authority has published Phase 2A of the Hong Kong Taxonomy for Sustainable Finance, alongside a consultation report, updating its framework for classifying economic activities that contribute to green and sustainable development. Phase 2A reflects refinements made to a prototype consulted on in September 2025, following Phase 1 released in May 2024. The updated taxonomy expands coverage, adds transition elements and a climate change adaptation category, and includes enhancements intended to improve clarity and practicality. Feedback was received from banks, professional associations, asset managers, corporates, non-government organisations, think tanks, the public sector and other respondents, who generally supported the expanded scope and the new elements. The HKMA described the taxonomy as a living document and confirmed that development of the next phase is underway, to be informed by market developments, government policies, industry priorities and technological advances.