The China Securities CCB Leading Science and Technology Innovation (Yangtze River Delta) Index, prepared in cooperation with the Shanghai Stock Exchange, China Securities Index Company and China Construction Bank, was officially released. Based on CCB's science and technology innovation evaluation index system, 50 representative listed company securities with strong scientific and technological innovation capabilities and good growth were selected from the Yangtze River Delta region's science and technology innovation-themed listed companies as an index sample to reflect the overall performance of listed company securities with both representative scientific and technological innovation characteristics and growth characteristics in the Yangtze River Delta region. Industry insiders said that the index is an important step for the capital market to cooperate with commercial banks to promote high-quality development. It will help guide the accumulation of social capital to high-quality listed technology companies through indexed investment to help listed technology companies to finance and provide high-level technological self-reliance and self-improvement to support the integration of science and innovation and the development of new quality productivity in the Yangtze River Delta.