The Chinese Academy of Sciences is the national academy for natural sciences of the People's Republic of China and its highest advisory body on science and technology. It operates 106 research institutes and two universities across China, employs over 71,000 full-time staff, and conducts research in multiple scientific fields while providing policy advice to the government. Headquartered at 52 Sanlihe Road, Xicheng District, Beijing, it was established in November 1949.