In recent years, with the rapid increase in the number of ESG/TCFD reports disclosed by enterprises, stakeholders have become increasingly concerned about the quality, reliability, and authenticity of ESG/TCFD report content. Major stock exchanges, the U.S. SEC, and EU regulatory bodies have set requirements or made recommendations regarding the quality of sustainability information disclosure by listed enterprises. They suggest that enterprises ensure the reliability of their ESG/TCFD information through 3rd assurance. Conducting ESG/TCFD report verification can enhance the credibility and transparency of information and data reports. The AA1000 Assurance Standard, developed by Accountability, aims to provide organizations with effective verification and social accountability management tools and standards. It is the world's first verification standard for ESG/TCFD reports and has a wide range of applications.