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[China Securities Index Co., Ltd. issued an announcement on the revision of the compilation scheme of the SSE Hong Kong Stock Connect Index] After research, the Shanghai Stock Exchange and China Securities Index Co., Ltd. have decided to revise the compilation scheme of the SSE Hong Kong Stock Connect Index. The revisions include: (1) The sample space is revised to: "Hong Kong Stock Connect securities announced by the Shanghai Stock Exchange and screened according to the following conditions: securities listed for less than 1 year are excluded unless the total market capitalization of the securities is among the top 10 in the corresponding market or the securities of the same company in the mainland market have been listed for more than 1 year; securities with an average daily turnover of less than HK$5 million in the past year are excluded; the median daily turnover rate of each month is calculated as the monthly turnover rate, and securities with an average monthly turnover rate of less than 0.1% in the past 12 months or the past 3 months are excluded unless the average daily turnover of the securities in the past year is greater than HK$50 million"; (2) The index calculation rules are revised to: "Adjusted market capitalization = ∑(Securities price × Adjusted share capital × Weighting factor × Exchange rate). For the calculation methods of exchange rate, adjusted share capital, and divisor correction, please refer to the Calculation and Maintenance Details. The weighting factor is between 0 and 1 so that the weight of a single sample does not exceed 10%. "; (3) The regular adjustment rule is revised to: "The index sample is adjusted once a quarter, and the sample adjustment implementation time is the next trading day after the second Friday of March, June, September and December each year. The weighting factor is adjusted with the regular sample adjustment, and the adjustment time is the same as the implementation time of the regular index sample adjustment. Before the next regular adjustment date, the weighting factor is generally fixed"; (4) The temporary adjustment rule is revised to: "The index will be temporarily adjusted under special circumstances. When a sample is delisted, it will be removed from the index sample. The handling of sample companies undergoing acquisition, merger, split, etc., shall be handled in accordance with the Calculation and Maintenance Details. When the scope of Hong Kong Stock Connect changes and the index sample no longer meets the qualification for interconnection, it will be removed accordingly."