October 2026 Global Regulatory Brief: CSRD, climate reporting and digital green bonds

The financial sector continues to face new rules and government expectations as part of the broader effort to aid the green transition. The following green finance policy developments represent a sample of wider regulatory and policy coverage available to Bloomberg Terminal customers. Run REGS <GO> to find out more or contact your Bloomberg representative to learn more:

• Japan: Committee advances transition finance framework
• EU: Revised CSRD sustainability reporting framework advances
• New Zealand: XRB consults on ISSB-aligned climate reporting
• Hong Kong: HKSAR Government issues HK$20bn digital green bonds

Japan advances transition finance framework

Overview:
The committee recently highlighted growth in Japan’s transition finance market, developments in transition-focused financial instruments and evolving standards across the EU, Canada, South Korea and international organizations. Members discussed developments including the proposed Transition category under the Sustainable Finance Disclosure Regulation (SFDR), transition finance subsidy programs and international cooperation through the Asia Zero Emission Community (AZEC). The discussion also covered financing for hard-to-abate industries, ASEAN developments and potential revisions to Japan’s transition finance framework.

Context:
Japan launched the Transition Finance Environment Development Study Group in 2021 to develop domestic guidance aligned with international frameworks such as ICMA’s Climate Transition Finance Handbook and to support financing for the transition of hard-to-abate sectors. At its 14th meeting, the committee reviewed domestic and international developments in transition finance and continued discussions on revisions to the Climate Transition Finance Basic Guidelines, taking into account developments in international standards, market practices, taxonomies and disclosure frameworks. 

Key takeaways:

• Japan’s transition finance market continues expanding, with cumulative domestic fundraising reaching approximately ¥3.72 trillion since 2021.
• The committee is reviewing updates to Japan’s Climate Transition Finance Basic Guidelines to reflect evolving international practices.
• Members view the transition category under the EU SFDR review as a potential source of broader investment opportunities.
• Concerns remain regarding exclusion criteria, particularly the treatment of coal-related activities under proposed European regulations.
• The committee discussed the role of transition finance subsidy programs in supporting company transition strategies and financing frameworks. 
• Participants called for greater disclosure and promotion of successful transition finance case studies and market examples.
• ASEAN developments should receive greater attention due to growing sustainable finance, disclosure, and taxonomy initiatives.
• The committee discussed the role of transition finance in supporting decarbonization pathways for hard-to-abate industries. 
• The committee discussed Japan’s Climate Transition (CT) government bonds and Green Transformation (GX) initiatives in the context of domestic transition finance. 
• The committee noted developments in international frameworks relating to transition plans, disclosures, external verification and safeguards against greenwashing. 

Next steps:
The committee will continue discussions on revisions to Japan’s Climate Transition Finance Basic Guidelines, taking into account developments in international transition finance frameworks and markets. Discussions are also expected to cover transition finance case studies and cooperation through ASEAN and AZEC initiatives.

EU advances revised CSRD sustainability reporting framework

Overview:
The EU has taken further steps towards implementing its revised Corporate Sustainability Reporting Directive (CSRD) framework, with the revised European Sustainability Reporting Standards (ESRS) and a voluntary reporting standard now published in the Official Journal – see ESRS text here and V-ESRS text here.

Separately, EFRAG has released a draft XBRL taxonomy reflecting the revised ESRS for consultation, providing the technical basis for the future digital reporting of sustainability disclosures. See revised XBRL standards here and consultation form here.

Context:
The developments form part of the EU’s wider simplification of corporate sustainability reporting under the Omnibus I package. The revised ESRS replace the existing standards and will become mandatory for financial years beginning on or after January 1, 2027, while EFRAG is developing the accompanying digital taxonomy ahead of its planned submission to ESMA and the European Commission.

Key takeaways:

• Revised ESRS: Commission Delegated Regulation (EU) 2026/1563 replaces the existing ESRS with the revised, simplified standards. The Regulation enters into force on November 10, 2026 and the revised standards apply to financial years beginning on or after January 1, 2027, with the first reports expected in 2028.
• 2026 reporting transition: Companies within CSRD scope for financial years beginning in 2026 may use the existing ESRS, apply the existing standards together with specified reliefs from the new Regulation, or adopt the revised ESRS in full. Sustainability statements must clearly identify which approach has been used.
• Voluntary reporting: Commission Delegated Regulation (EU) 2026/1560 establishes a voluntary sustainability reporting standard for companies outside mandatory CSRD scope. It enters into force on September 24, 2026. For financial years beginning on or after January 1, 2027, the Regulation also limits the sustainability information that CSRD-reporting companies may request from value-chain undertakings with an average of 1,000 employees or fewer, subject to specified exceptions. 
• Digital reporting taxonomy: EFRAG’s draft XBRL taxonomy translates the revised ESRS datapoints into the technical structure needed for machine-readable sustainability reporting. It replaces EFRAG’s August 2024 taxonomy and aligns with the draft list of revised ESRS datapoints released in August 2026.
• Digital tagging not yet mandatory: CSRD digital reporting is expected to be implemented through the European Single Electronic Format (ESEF), under a regulatory framework to be proposed by ESMA and adopted by the European Commission. Until that framework is established, digital tagging of ESRS sustainability disclosures is not mandatory.

Next steps:
The revised ESRS enter into force on November 10, 2026, and apply to financial years beginning on or after January 1, 2027. EFRAG’s consultation on the draft ESRS XBRL taxonomy closes November 11, 2026, with the final taxonomy planned for submission to ESMA and the European Commission by the end of 2026. ESMA and the Commission will subsequently establish the regulatory framework for mandatory digital tagging of CSRD sustainability disclosures.

XRB consults on transition to ISSB-aligned climate reporting standard

New Zealand’s XRB is consulting on a draft roadmap to replace domestic climate standards with an IFRS S2-aligned standard, with mandatory application proposed for reporting periods beginning on or after January 1, 2033, and earlier voluntary adoption planned. 

Context:
The External Reporting Board (XRB) of New Zealand has issued a public consultation on its draft climate reporting roadmap. The proposal outlines plans to replace current domestic reporting requirements (NZ CS) with a new standard, NZ IFRS S2, which adopts the International Sustainability Standards Board (ISSB) IFRS S2 standard alongside climate-relevant components of IFRS S1.

Key takeaways:

• International alignment and scope: According to the XRB, the proposed shift is intended to enhance international comparability and streamline reporting for entities operating across multiple jurisdictions. Adopting IFRS S2 narrows the reporting scope to focus specifically on climate-related risks and opportunities affecting an entity’s financial prospects, while requiring adherence to the GHG Protocol Corporate Standard.
• Trans-Tasman harmonization: The XRB is seeking feedback on how to align with Australia’s AASB S2 framework. Options under review include whether to make the ISSB’s 77 industry-based metrics optional or delete mandatory references (mirroring Australia’s interim stance), and how to approach scenario analysis requirements regarding temperature targets and the number of scenarios.
• Locally relevant modifications: Technical adjustments are proposed to align with New Zealand’s Financial Markets Conduct Act (FMC Act), such as maintaining limited assurance requirements over GHG emissions disclosures and ensuring the reporting entity boundary matches financial statements. The XRB noted that a high threshold, described as a “compelling reason,” would apply to substantive deviations from IFRS S2. 
• Transition mechanics: The XRB proposes omitting general first-time ISSB transition reliefs (such as Scope 3 disclosure deferrals), given that domestic climate reporting entities (CREs) have already applied NZ CS for three years. However, comparative information from prior NZ CS reporting will not need to be restated.

Next steps:

• Consultation period: Stakeholder feedback on the draft roadmap closes on September 30, 2026.
• Exposure draft consultation: Following feedback analysis, the XRB plans to run an accelerated consultation process on an Exposure Draft (ED NZ IFRS S2).
• Early adoption window: The XRB targets issuing the finalized NZ IFRS S2 standard to allow voluntary early adoption for financial years starting on or after October 1, 2026.
• Mandatory application: Mandatory compliance for all covered climate reporting entities will take effect for reporting periods starting on or after January 1, 2033.

HKSAR Government issues HK$20bn digital green bonds

The HKSAR Government priced its fourth digital green bond offering, raising approximately HK$20 billion equivalent in a multi-currency transaction that the Government described as the largest digital bond issuance globally to date. 

Context:
The Hong Kong SAR Government announced the successful pricing of its multi-currency digital green bonds under the Sustainable Bond Program. According to the Government, the transaction attracted global demand, with subscription ratios ranging from 1.3 to 11.3 times across the respective tranches. 

Key takeaways: 

• Tranche breakdown: The offering comprises HKD 5.5 billion (2-year at 3.80%), RMB 7.5 billion (5-year at 1.65%), USD 200 million (3-year at 5.023%), and EUR 450 million (4-year at 3.734%).
• Credit ratings & governing law: The bonds are rated AA-/Aa3/AA+ by Fitch, Moody’s, and S&P (matching the issuer’s sovereign rating) and are governed by Hong Kong law with a T+1 settlement cycle.
• Tokenized deposit settlement: The HKD tranche integrated tokenized deposits powered by EnsembleTX into its primary issuance settlement process. This creates a multi-rail structure operating alongside traditional settlement rails and tokenized central bank money.
• Data standards adoption: The issuance adopted ICMA’s Bond Data Taxonomy (BDT) Version 2.0, using machine-readable formatting for key economic terms and dates. 
• Infrastructure & ESG certification: Clearing and settlement are managed through the HKMA’s Central Moneymarkets Unit (CMU) linked to Euroclear and Clearstream, using HSBC Orion as the digital asset platform. Proceeds will fund eligible green projects under the Government’s Green Bond Framework, supported by an SPO from Vigeo Eiris and certification from the HKQAA.

Next steps:
The HKSAR Government intends to issue tokenized bonds on a regular basis to expand technological use cases. The issuance forms part of initiatives set out in the Digital Asset Policy Statement 2.0 and the 2026 Policy Address relating to the development of tokenized financial assets and digital debt instruments.