Announcement on the Revision of the Compilation Scheme of the Shanghai Stock Exchange Smart Home Index.

To further enhance the investability of the index, the Shanghai Stock Exchange and China Securities Index Co., Ltd. have decided to revise the compilation scheme of the SSE Smart Home Index. The revision includes: adding new investability screening rules, i.e., the average daily trading volume ranking in the top 90% of the sample space in the past year; revising the sample selection method, i.e., selecting the top 50 securities with the highest average total market value in the past year from smart home theme securities such as smart home terminal devices, component applications, and home smartification and whole-house interconnection within the sample space that meets the investability screening conditions; revising the weighting method to free float market capitalization weighting, with individual weights of home appliances and home industry samples not exceeding 10%, and other industry individual sample weights not exceeding 3%; adding a new regular adjustment proportion limit, i.e., generally not exceeding 20% of the sample size for each adjustment. The rest of the index compilation scheme remains unchanged. The revision of the above compilation scheme will be implemented on June 15, 2026.