The Chinese Academy of Sciences (CAS) is the national research institution of the People's Republic of China. Established in 1949, it focuses on advancing scientific knowledge and technology across various fields, including natural sciences, engineering, and social sciences. CAS plays a crucial role in China's scientific development and innovation. CAS comprises multiple research institutes, universities, and laboratories, facilitating collaboration among scientists. It also promotes international cooperation in research and education. The academy is instrumental in addressing global challenges, such as climate change and public health, through its extensive research programs and initiatives.