Base year
A historical year against which future performance, emissions, energy use or other ESG metrics are compared.
Key Matters and Considerations in ESG
A credible base year supports target tracking. Companies should explain recalculations after acquisitions, divestments, methodology changes or material data corrections.
About GreenCo
GreenCo is a professional ESG advisory firm accredited with ISO 9001 in the Provision of ESG/Sustainability Reporting, Sustainability and Climate Disclosures and GHG Accounting Advisory Services. Established in 2016, we were born to tackle ESG and climate risk management challenges. GreenCo has a professional team consists of talents with multiple backgrounds with
- PhD
- Practitioner Member of the Institute of Sustainability and Environmental Professionals (ISEP)
- CFA (the CFA Institute) and Certificate in ESG Investing
- EFFAS Certified ESG Analyst (CESGA)
- GRI Certified Sustainability Professional
- Certified Public Accountant (for assurance in accordance with ISAE 3000)
- Member of Global Association of Risk Professionals
- Master’s degree in envirnomental science
GreenCo has solid track record in ESG advisory for over 60 listed companies in Hong Kong, Mainland China, Singapore and Korea, covering all industries under the Hang Seng Industry Classification System.


