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HongKong-HKEX-ClimateEffective (phased)

HKEX New Climate Requirements (Appendix C2)

Hong Kong · Hong Kong Exchanges and Clearing (HKEX)

HKEX listing rules require all Main Board issuers to disclose climate information aligned with IFRS S2 on a comply-or-explain basis from 1 January 2025, with mandatory application for Hang Seng Composite LargeCap constituents from 1 January 2026. Some elements differ from IFRS S2 (e.g., scope of consolidation, industry-based metrics).

Category
Listing rule – climate disclosure
Enforcement
Comply-or-explain for all Main Board issuers from 1 January 2025. Mandatory for Hang Seng Composite LargeCap Index constituents from 1 January 2026.
Effective date
1 January 2025 (comply-or-explain); 1 January 2026 (mandatory for HSCI LargeCap)
Covered entities
All HKEX Main Board issuers (comply-or-explain); HSCI LargeCap constituents (mandatory)
Notes
Distinct regime from HKICPA HKFRS S1/S2. HKEX rule applies via listing requirements, not accounting standards.

Sources

Verified 2026-04-30

Related regulations

HongKong-HKFRS

HKFRS S1 and HKFRS S2 – Hong Kong Sustainability Disclosure Standards

Hong Kong · Hong Kong Institute of Certified Public Accountants (HKICPA)
Adopted (effective 1 August 2025; voluntary use until mandated by relevant authority)

HKICPA published HKFRS S1 and HKFRS S2 on 12 December 2024, fully aligned with IFRS S1 and S2. The Hong Kong SAR Government's December 2024 Roadmap sets out the phased path to mandatory adoption for publicly accountable entities.

Enforcement
Voluntary at HKICPA level. The Hong Kong SAR Government's roadmap (10 December 2024) sets out phased mandatory adoption for publicly accountable entities.
Effective date
Annual reporting periods beginning on or after 1 August 2025
Covered entities
Any Hong Kong entity (voluntary). Mandatory phased rollout per government roadmap.
Primary source ↗IFRS Foundation profile ↗Verified 2026-04-30