Group 1 - The Shanghai Composite Index opened high and the CSI 300 Automotive Parts Index reported 5840.02 points [1] - The CSI 300 Automotive Parts Index has decreased by 1.55% in the past month, increased by 3.91% in the past three months, and has declined by 7.92% year-to-date [1] - The CSI 300 Index categorizes its 300 sample stocks into 11 primary industries, 35 secondary industries, over 90 tertiary industries, and more than 200 quaternary industries [1] Group 2 - The CSI 300 Automotive Parts Index has a market share distribution of 88.41% from the Shanghai Stock Exchange and 11.59% from the Shenzhen Stock Exchange [1] - Within the CSI 300 Automotive Parts Index, the industry composition includes 58.02% for automotive interior and exterior parts, 15.87% for automotive system components, 14.52% for tires, and 11.59% for automotive electronics [1] - The index sample is adjusted biannually, with adjustments occurring on the next trading day after the second Friday of June and December [2]