Hong Kong · ESG & climate disclosure advisory
GreenCo advises Hong Kong listed issuers and private companies on HKEX Appendix C2 reporting, IFRS S2-aligned climate disclosure, greenhouse gas accounting and board-level governance. Written by consultants, not generated. Over 80 listed clients since 2016.
Why companies move to us
Companies increasingly find that a paid engagement returns little more than an AI-generated opinion — fluent, confident, and impossible to defend when an investor asks a second question. GreenCo has held to international standards of professional expertise since 2016. We do not compete on price, and we do not outsource the thinking.
Start here
Hong Kong's climate disclosure rules phase in by issuer type. Find yours, and see what is mandatory, when, and where we would start.
Hang Seng Composite LargeCap Index constituent
Mandatory · FY beginning on or after 1 Jan 2026
Read moreMain Board, not a LargeCap Index constituent
Mandatory Scope 1 & 2 · comply-or-explain for the rest
Read moreListed on GEM
Mandatory Scope 1 & 2 · wider climate disclosure voluntary
Read moreNot listed, or preparing to list
No listing rule — but customers, banks and buyers are asking
Read moreServices
Most engagements begin with disclosure and expand outward — into climate, then governance, then the systems and people that keep it running.
Getting the report right, and making it stand up to scrutiny from regulators, investors and — increasingly — assurance providers.
Prepare sustainability disclosures that comply with the latest regulatory and investor expectations, including HKEX Appendix C2 and GRI.
Read moreCoreEnhance the credibility of sustainability information through robust internal controls, documentation and assurance preparedness.
Read moreThe area where Hong Kong requirements have tightened fastest, and where most boards find their existing risk processes were never built for it.
Build an organisation-wide climate governance and risk management framework aligned with IFRS S2 and leading international practices.
Read moreIFRS S2Assess the resilience of your business under different climate scenarios and evaluate potential financial implications.
Read moreScope 1-3Develop reliable greenhouse gas inventories and establish practical carbon reduction pathways across Scope 1, 2 and 3.
Read moreBoard and management level: deciding what matters, setting targets that can be met, and holding oversight a regulator recognises.
Empower boards and senior management to fulfil evolving ESG and climate governance responsibilities while strengthening long-term oversight.
Read moreBoard levelTranslate sustainability ambitions into measurable business strategies and performance targets.
Read moreBoard levelIdentify the ESG issues that matter most by engaging stakeholders and conducting structured materiality assessments aligned with international best practices.
Read moreWhat decides whether year two is easier than year one — systems that hold the data, and people who understand it.
Transform ESG data collection into an efficient, secure and auditable digital process, with a monitoring dashboard for oversight.
Read moreDigitalBuild ESG knowledge and organisational capability through practical training programmes tailored for boards, management and employees.
Read moreWho we help
A LargeCap issuer preparing mandatory Scope 3 disclosure and a family-owned supplier answering its first customer questionnaire need different work. We scope accordingly.
We support issuers in meeting increasingly complex ESG and climate disclosure requirements — through reporting, governance advisory, GHG accounting, climate risk assessment and sustainability strategy. More than 80 listed companies have engaged us since 2016.
Many Hong Kong businesses are now asked for ESG information by customers, banks and investors without any listing rule requiring it. We help establish practical ESG management that supports growth rather than adding overhead — starting from whatever is actually being asked of you.
How an engagement runs
A short call or live chat to establish your listing status, reporting year and what you already have. We come back with a defined scope and fee.
Data collection through our ESG data portal or your own templates, with site visits where the emissions data requires it.
Materiality, emissions calculation, climate risk and scenario work — and the gap analysis against what your rule set requires.
Bilingual report drafting, board briefing, and documentation kept in a form your auditor or assurance provider can follow.
Clients' recognition
Our consultants focus on tailored solutions rather than generic recommendations. Choosing the right ESG partner matters — this is a report your board signs.
The training was highly informative, to-the-point, practical and well-paced, giving our teams valuable insights and strategies to improve our approach to climate-related management.
Your team is very helpful and always responds promptly to any issue that arises during the reporting process, and has shown real professionalism in stakeholder engagement.
Throughout the process, the GreenCo team demonstrated deep expertise, professionalism and a strong commitment to delivering timely and accurate reports.
Insights
Published on our main site, alongside case references, regulatory updates and our full ESG glossary.
Questions we are asked most
Appendix C2 to the HKEX Listing Rules — the Environmental, Social and Governance Reporting Code. Part D of that Code sets out climate-related disclosure requirements aligned with IFRS S2, covering governance, strategy, risk management, and metrics and targets. It took effect for financial years beginning on or after 1 January 2025.
Not for everyone. Scope 1 and Scope 2 emissions are mandatory for all listed issuers for financial years beginning on or after 1 January 2025. The wider Part D climate disclosures, including Scope 3, become mandatory for Hang Seng Composite LargeCap Index constituents for financial years beginning on or after 1 January 2026. Other Main Board issuers report on a comply-or-explain basis, and GEM issuers voluntarily.
Not currently. The HKICPA issued HKFRS S1 and S2 fully aligned with the ISSB standards, but they are available for voluntary use unless and until a regulator requires them. The cross-government roadmap published in December 2024 sets out an intention for full adoption by listed and other significant publicly accountable entities no later than 2028. Requirements do change — we confirm the current position for your specific reporting year at scoping.
No. We use software for calculation and data handling, as any competent advisor does, but the analysis, judgement and drafting are done by consultants and reviewed by a second consultant. If you have received work elsewhere that read fluently but could not survive a follow-up question, that is the difference you are looking for.
Fees depend on scope: your rule set, number of entities and sites, emissions boundary, and how much of the data already exists. We quote a defined scope rather than an hourly estimate, and we do not compete on price alone. The fastest route to a number is the quotation request form, or a short live chat.
Yes. Our Hong Kong team works in both, and reports, board papers and training sessions can be delivered bilingually — which matters when the same content has to satisfy an English-language filing and a Chinese-speaking board.
Tell us your listing status and reporting year end. We come back with a defined scope, a fee and a realistic timeline — not a brochure.
