Through the official website of China Association for Science and Technology (CAST), there is an affiliation relationship between CAST and Chinese Han Guozhi. Zhonghan Guozhi is a wholly-owned operational supervisory unit of the China Association for Science and Technology (CAST), which is mainly dedicated to the investment and construction of new infrastructure big data centers, urban intelligent rail transit, new energy, new materials, distributed photovoltaic, 5G smart city development, investment and upgrading of scientific and technological industrial parks, and industrial funds and industrial import projects.