GHG Accounting Is Entering a New Era: How GHG Protocol and ISO Standards Are Evolving
In 2026, the GHG Protocol and the ISO will combine their corporate carbon accounting standards into a single, harmonized global standard.
Hong Kong, Singapore, Shanghai

In 2026, the GHG Protocol and the ISO will combine their corporate carbon accounting standards into a single, harmonized global standard.
The International Auditing and Assurance Standards Board (IAASB)'s International Standard on Sustainability Assurance (ISSA) 5000 is set to become effective for sustainability assurance engagements for periods beginning on or after 15 December 2026. The next challenge in ESG reporting may not be disclosure — but evidence.
Singapore’s sustainability landscape has shifted from voluntary storytelling to rigorous, audit-ready compliance. To help organizations cut through the noise, GreenCo ESG Singapore has officially launched a dedicated resource hub: the Singapore Sustainability Guide.
On 14 April 2023, the Stock Exchange of Hong Kong Limited (“the Exchange”) under the Hong Kong Exchanges and Clearing Limited (“HKEX”) published a consultation paper seeking market feedback on proposals to enhance climate-related disclosures under the Environmental, Social and Governance (“ESG”) framework. The Exchange proposes to mandate all issuers to make climate-related disclosures in their ESG reports, and introduce new climate-related disclosures aligned with the International Sustainability Standards Board (“ISSB”) Climate Standard. With the proposed effective date of 1 January 2024, the interim provisions (shorter or simpler version) of certain disclosures are proposed for the first two reporting years following the effective day.
GreenCo has recently launched a brand-new ESG advisory package for companies planning an IPO, in which it supports all IPO applicants looking for compliance and excellence in ESG management with recommended planning and preparation measures.
GreenCo has introduced new digital assessment and management tools to respond to the megatrend of sustainable funds.
GRI announced the launch of GRI 306: Waste 2020, the first globally applicable tool for organisations to report and communicate on their waste impacts. GRI 306: Waste 2020 reflects global best practices on waste management and will be effective for reports and other materials published on or after 1 January 2022.
With increasing awareness of social and population health impacts private sectors have, Robert Wood Johnson Foundation (RWJF) and the Global Reporting Initiative (GRI) have been working on a project named Culture of Health for Business (COH4B), aiming to push the companies to think differently on how they can affect the population health and society, through exploring business practices that have discrete health and business impacts.