The Chinese Academy of Sciences (CAS) is the main organization in charge of the construction and operation of China's major research facilities. These facilities, known as "Large Research Infrastructures", are designed to address some of the most pressing scientific challenges facing humanity today. With state-of-the-art equipment and world-class scientists, these facilities help push the boundaries of human knowledge and understanding, paving the way for new discoveries and innovations that will shape the future of science and technology.