GCSS is a licensed assurance provider for sustainability reports from AcountAbility UK. With the expertise and experience of preparing sustainability reports, the assurers had gained in depth knowledge on the sustainability data management. This helps in understanding the mechanics behind the disclosures and how credible are in the internal process.


  1. Conducting External Assurance for Sustainability Reports based on AcountAbility principles 
  2. Recommendations for improvement of Sustainability Reports


  1. Managing External Assurance for Sustainability Reports
  2. Sustainability Reporting Assurance Professional