Hong Kong Sustainable Finance Taxonomy Phase 2B: What the Expanded Scope Could Mean for Businesses
HKMA's Phase 2B consultation prototype expands climate-mitigation activities from 25 to 39 and introduces 24 adaptation measures. Businesses can assess potential relevance to transition investment and financing, but the prototype is not final or effective.
The Hong Kong Monetary Authority (HKMA) has launched a public consultation on the Phase 2B prototype of the Hong Kong Taxonomy for Sustainable Finance. The consultation closes on 7 October 2026.
The taxonomy is intended to provide definitions and technical criteria for green and transition activities, supporting more informed financing decisions and reducing greenwashing risk. Phase 2B is currently a consultation prototype. It is not a final or effective classification standard, and an activity appearing in the prototype does not guarantee financing, certification or a lower cost of capital.
Climate-mitigation activities expand from 25 to 39
The Phase 2B prototype adds 10 economic activities. Together with the re-categorisation of selected Phase 2A activities, the total number of climate-mitigation economic activities increases from 25 to 39.
The wider scope includes enabling technologies and transition routes that may be relevant to businesses planning decarbonisation investment or discussing sustainable finance with banks and investors. Examples highlighted by the HKMA include:
- manufacturing and recycling of batteries;
- manufacturing of low-carbon technologies;
- transition pathways for air transport; and
- transition pathways for iron and steel.
The inclusion of an activity does not mean every project in that sector automatically qualifies. Technical criteria, project design, data and the final adopted framework will remain important.
Climate adaptation receives a more structured approach
Phase 2B introduces a process-based methodology for climate adaptation. Because physical climate risks vary by location and context, the proposed approach looks at whether measures make a substantial contribution to adaptation and whether they avoid maladaptation—actions that unintentionally transfer or increase risk elsewhere.
The prototype contains 24 adaptation measures:
- 11 whitelist measures, which the HKMA describes as having undergone rigorous assessment and being directly adoptable and deemed compliant with the taxonomy; and
- 13 non-whitelist measures, which would need assessment under the process-based approach.
The initial focus is shoreline protection and flood management, reflecting climate risks that are particularly relevant to Hong Kong's buildings, infrastructure, logistics sites and coastal assets.
What businesses can assess now
Businesses considering green or transition investment can use the consultation period to review whether the proposed framework may affect future financing discussions, project documentation or investment sequencing. Relevant questions include:
- whether planned activities appear within the expanded scope;
- which technical criteria and evidence may be difficult to apply in practice;
- whether transition plans distinguish current performance from intended improvements;
- whether climate-adaptation measures are linked to specific locations and risks; and
- whether public environmental claims can be supported without overstating taxonomy alignment.
This is not a DIY classification exercise. Businesses should avoid stating that a project is taxonomy-aligned, certified or guaranteed to receive green financing solely because a related sector appears in the prototype.
Why the consultation matters beyond financial institutions
Although the framework is a sustainable-finance tool, its definitions may influence how companies describe capital expenditure, transition pathways and adaptation projects to lenders and investors. Manufacturers, transport businesses, infrastructure operators, property owners and technology companies may therefore have a practical interest in whether the proposed criteria reflect real operating conditions.
Interested parties may submit comments to the HKMA by 7 October 2026. The most useful feedback is likely to address the clarity, feasibility and evidence requirements of the proposed framework rather than seeking a financing outcome for a particular company or project.
Scope and limitations
Phase 2B remains at the consultation/prototype stage. The consultation announcement does not confirm the final number of activities, the wording of the technical criteria, an implementation date, project eligibility, financing approval, pricing, certification or investment performance.
Source
Hong Kong Monetary Authority, “HKMA launches public consultation on Phase 2B prototype of Hong Kong Taxonomy for Sustainable Finance”, 7 September 2026: https://www.hkma.gov.hk/eng/news-and-media/press-releases/2026/09/20260907-3/
This article is provided for general business information only. It is not legal, financial, investment, banking, environmental, engineering, accounting, tax or other professional advice. It does not confirm taxonomy alignment, certification, funding approval, financing terms, environmental performance or commercial results.