BEIJING, Dec. 24, 2024 /PRNewswire/ -- Morgan Stanley Capital International (MSCI), an international authoritative indexing organization, has recently upgraded the MSCI ESG (Environmental, Social, and Governance) rating of Guotai Junan Securities Co., Ltd. (Guotai Junan, 601211.SH) to AAA by virtue of the firm's leading practice and outstanding performance in ESG.