This report summarizes insights on transparency and integrity in sustainable finance markets shared by regulators and business leaders at a series of webinars co-hosted by the Asian Development Bank and State Street Global Advisors in November 2021. It provides an overview of policy and market practice to enhance transparency and integrity in sustainable finance and to foster the market's development. The report covers three topics: (i) efforts to align taxonomies and standards across regions and to support transition finance, (ii) efforts of Asian investors to adopt and adapt to environmental, social, and governance (ESG) information disclosure and integrity requirements, and (iii) corporate perspectives on the practical benefits of enhancing ESG information disclosure and integrity.