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South-Korea-ISSBKSSB Standards No. 1 and No. 2 finalized 26 February 2026 (voluntary application available). FSC final roadmap announced 8 July 2026: mandatory from 2028 (FY2027) for large KOSPI-listed companies; FSCMA and rule amendments pending

Local adoption of IFRS S1 / S2 (ISSB Standards)

South Korea · Korea Sustainability Standards Board (KSSB) of the Korea Accounting Institute, with the Financial Services Commission (FSC) determining application by listed entities

Korea's KSSB finalized KSSB Standards No. 1 and No. 2, based on IFRS S1 and S2, on 26 February 2026. The FSC's final roadmap of 8 July 2026 makes sustainability disclosure part of statutory business reports under the FSCMA from 2028 (FY2027) for KOSPI companies with consolidated assets of KRW 10 trillion or more, widening to KRW 5 trillion in 2029, with a three-year liability safe harbor, third-party verification from 2030 and Scope 3 deferred to 2031 or later.

Category
ISSB-aligned sustainability disclosure
Enforcement
Mandatory under the announced roadmap once FSCMA and related rules are amended; voluntary until then
Effective date
Filing from 2028 for FY2027: KOSPI-listed companies with total consolidated assets of KRW 10 trillion or more. From 2029: threshold lowered to KRW 5 trillion. From 2030: authorities to consider lowering it to KRW 2 trillion after reviewing 2028 to 2029 practice. Third-party verification from 2030. Scope 3 deferred to 2031 (KRW 10 trillion or more), 2032 (KRW 5 trillion or more) and 2033 (KRW 2 trillion or more).
Covered entities
KOSPI-listed companies, phased by total consolidated assets (KRW 10 trillion, then KRW 5 trillion, possibly KRW 2 trillion), reporting on a consolidated basis. FSC estimates 291 companies (including affiliates) in 2028 and 3,171 in 2029. Other listed companies may disclose voluntarily through KRX using KSSB standards. SMEs that are not high emitters are exempt from Scope 3.
Notes
KSSB standards (Korean only): https://www.kasb.or.kr/front/board/sstnb_stndrList.do?tab=B. FSC said authorities will seek to revise the relevant rules in 2026 and amend the FSCMA for verification; track these. First-year relief lets companies exclude affiliates below 10 percent of both consolidated assets and sales. IFRS Foundation snapshot for Korea is still dated 12 June 2025.

Sources

Related regulations

KR-EPR

Act on the Promotion of Saving and Recycling of Resources (Resource Recycling Act, Article 16); Act on Resource Circulation of Electrical and Electronic Equipment and Vehicles

South Korea · Ministry of Climate, Energy and Environment (MCEE, formerly Ministry of Environment); Korea Environment Corporation (K-eco) administers the EPR system
In force

South Korea was one of the first non-EU countries to adopt EPR. Under Article 16 of the Resource Recycling Act, producers and importers of packaging and listed products must meet annual mandatory recycling rates set by the Minister of Climate, Energy and Environment, and those that fall short pay recycling charges administered by the Korea Environment Corporation. From 2026 the EEE regime covers all electrical and electronic equipment rather than a fixed list of 50 items.

Enforcement
Mandatory
Effective date
EPR system launched 1 January 2003; EEE and ELV Act effective 1 January 2008; EEE EPR extended from 50 listed items to all electrical and electronic equipment from 1 January 2026, with listed exclusions
Covered entities
Manufacturers and importers of packaging (paper packs, metal cans, glass bottles, synthetic resin packaging) and of listed products (including lubricants, batteries, tires, fluorescent lamps and certain synthetic resin products) above sales thresholds; from 2026, manufacturers and importers of all electrical and electronic equipment, except excluded categories such as large industrial equipment and military goods and except manufacturers with sales under KRW 1 billion and importers under KRW 300 million
Primary source ↗Verified 2026-09-23
Effective. Group 1 has reported since financial years beginning 1 January 2025 and Group 2 since financial years beginning 1 July 2026. Treasury is consulting on changes to reduce reporting costs (closes 2 October 2026).

Australia has adopted ISSB-aligned sustainability standards. AASB S2 (climate) is mandatory for entities within Chapter 2M of the Corporations Act and is phased in across three groups from 2025 to 2027. AASB S1 (general sustainability) is voluntary. ASIC administers the regime and has published guidance in RG 280.

Enforcement
AASB S1: voluntary. AASB S2: mandatory under Corporations Act 2001 for in-scope entities.
Effective date
Financial years beginning on or after 1 January 2025 (Group 1), 1 July 2026 (Group 2) and 1 July 2027 (Group 3). AASB S2025-1 amendments apply to annual periods beginning on or after 1 January 2027, with early application permitted.
Covered entities
Entities that must prepare annual financial reports under Chapter 2M of the Corporations Act and meet a s292A threshold. Group 1: at least two of consolidated revenue of AUD 500m or more, consolidated gross assets of AUD 1bn or more, and 500 or more employees; or NGER registered corporations in groups that meet the s13(1)(a) NGER threshold. Group 2: at least two of revenue of AUD 200m or more, assets of AUD 500m or more, and 250 or more employees; all other NGER registered corporations; and registered schemes, RSEs and retail CCIVs with assets of AUD 5bn or more. Group 3: at least two of revenue of AUD 50m or more, assets of AUD 25m or more, and 100 or more employees.
UK-SRS

UK Sustainability Reporting Standards (UK SRS S1 and UK SRS S2)

United Kingdom · UK Government (Department for Business, Innovation, Science and Trade, renamed from DBT in July 2026) / FRC; FCA for listed-entity application
Final standards published 25 February 2026 for voluntary use; FCA consultation CP26/5 closed 20 March 2026; FCA policy statement expected autumn 2026 (not published as of 23 September 2026)

UK SRS S1 and S2 are the UK government's endorsed versions of IFRS S1 and S2, published on 25 February 2026 for voluntary use. Voluntary users can apply the Scope 3 and non-climate reliefs with no time limit. The FCA has consulted on listing rules that would make UK SRS S2 climate reporting mandatory for listed companies, with Scope 3 emissions and UK SRS S1 non-climate reporting on a comply-or-explain basis.

Enforcement
Voluntary at publication. FCA proposes mandatory UK SRS S2 for listed issuers (Scope 3 and broader sustainability on comply-or-explain).
Effective date
Voluntary use: no effective date (entities apply the standards when they choose). FCA proposal, subject to the final policy statement: rules in force 1 January 2027 for accounting periods beginning on or after 1 January 2027; using the transitional reliefs, Scope 3 reporting from periods beginning on or after 1 January 2028 and UK SRS S1 non-climate reporting from periods beginning on or after 1 January 2029.
Covered entities
Any entity (voluntary). The FCA proposal covers issuers in the commercial companies (UKLR 6), non-equity and non-voting equity shares (UKLR 16), transition (UKLR 22), secondary listing (UKLR 14) and depositary receipts (UKLR 15) categories. No mandate yet for unlisted companies.
Canada-CSDS

CSDS 1 and CSDS 2 – Canadian Sustainability Disclosure Standards

Canada · Canadian Sustainability Standards Board (CSSB), under FRAS Canada
Final standards published (voluntary); CSA mandatory rule paused since April 2025 (no resumption found); CSDS 2 GHG emissions amendments proposed April 2026

CSSB issued final CSDS 1 and CSDS 2 on 18 December 2024, aligned with IFRS S1 and S2 with extra transition reliefs. The standards are voluntary. The CSA paused its mandatory climate disclosure rulemaking on 23 April 2025. In April 2026 the CSSB proposed CSDS 2 amendments matching the ISSB's IFRS S2 amendments: limiting Scope 3 Category 15 to financed emissions, allowing an industry classification other than GICS, and allowing other GHG measurement methods or GWP values where a jurisdictional authority or exchange requires them.

Enforcement
Voluntary
Effective date
Standards effective for annual reporting periods beginning on or after 1 January 2025, for entities that choose to apply them (with transition reliefs). Voluntary; no mandatory reporting date exists.
Covered entities
Any Canadian entity (voluntary). CSA paused work on mandatory rule citing global developments.
Japan-SSBJ

SSBJ Sustainability Disclosure Standards (Application, General, Climate)

Japan · Sustainability Standards Board of Japan (SSBJ)
Final standards published 5 March 2025; mandatory under the FSA's Cabinet Office Order amendment promulgated 20 February 2026, first cohort from the fiscal year ending March 2027

SSBJ published its Application, General and Climate Standards on 5 March 2025, and the SSBJ and ISSB confirm they are functionally aligned with IFRS S1 and S2. The FSA amended the Cabinet Office Order on Disclosure of Corporate Affairs on 20 February 2026 to require SSBJ-based disclosures in Annual Securities Reports for large Prime Market companies from the fiscal year ending March 2027, with third-party assurance one year later.

Enforcement
Mandatory for Tokyo Stock Exchange Prime Market companies, phased by market cap, through Annual Securities Reports under the Cabinet Office Order on Disclosure of Corporate Affairs. Voluntary for other entities.
Effective date
Voluntary for annual periods ending on or after 5 March 2025. Mandatory for Prime Market companies by average market cap (average of the last five fiscal year-ends): ¥3 trillion or more from the fiscal year ending March 2027; ¥1 trillion or more from the fiscal year ending March 2028; ¥500 billion or more from the fiscal year ending March 2029. Timing for other Prime Market companies to be decided later. Mandatory assurance starts one year after each cohort's first mandatory year.
Covered entities
Tokyo Stock Exchange Prime Market companies with average market capitalization of ¥500 billion or more, in three cohorts (¥3 trillion, ¥1 trillion, ¥500 billion). Timing for other Prime Market companies not yet set.
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.