[Revision of the compilation plan of the SSE Hong Kong Stock Connect Index: Securities with an average daily trading volume of less than HK$5 million in the past year are excluded from the sample] On November 4, the Shanghai Stock Exchange and China Securities Index Co., Ltd. announced that after research, the Shanghai Stock Exchange and China Securities Index Co., Ltd. decided to revise the compilation plan of the SSE Hong Kong Stock Connect Index. The revisions include: (1) The sample space is revised to: "Southbound trading securities announced by the Shanghai Stock Exchange are screened under the following conditions: securities that have been listed for less than one year are excluded, unless the total market value of the securities is among the top 10 in the corresponding market or the securities of the same company have been listed on the mainland market for one year; the daily average in the past year is excluded Securities with a transaction amount of less than HK$5 million; calculate the monthly median daily turnover rate as the monthly turnover rate, and exclude securities with an average monthly turnover rate of less than 0.1% in the past 12 months or the past 3 months, unless the average daily transaction amount of the security in the past year is greater than HK$50 million." (2) The index calculation rules are revised to: "Adjusted market capitalization = ∑ (security price × adjusted share capital × weight factor × exchange rate). For the calculation method of exchange rate, adjusted share capital, and divisor correction method, please refer to the calculation and maintenance details. The weight factor is between 0 and 1, so that the weight of a single sample does not exceed 10%."; (3) The regular adjustment rules are revised to: "Index samples are adjusted once every quarter, and the sample adjustment implementation time is the next trading day of the second Friday in March, June, September, and December each year. The weight factor is adjusted with the regular adjustment of the sample, and the adjustment time is the same as the implementation time of the regular adjustment of the index sample. Before the next regular adjustment day, the weight factor is generally fixed." (4) The temporary adjustment rules are revised to: "Temporary adjustments will be made to the index under special circumstances. When a sample is delisted, it will be removed from the index sample. The handling of acquisitions, mergers, spin-offs, etc. of sample companies shall be handled with reference to the calculation and maintenance rules. When the scope of Hong Kong Stock Connect changes and the index sample no longer meets the qualifications for interconnection, it will be removed accordingly." In order to ensure the smooth transition of index samples, the revised temporary adjustment rules of the index compilation plan will be implemented from the date of this announcement, and other rules will be implemented from December 14, 2026. During this period, only the revised temporary adjustment rules will be implemented for index sample adjustments; in regular adjustments, the existing sample space and securities in the sample that do not meet the revised listing time-related rules will be retained.