The Shanghai Stock Exchange and China Securities Index Co., Ltd. have revised the compilation plan for the Shanghai Composite Index series.

Upon study, the Shanghai Stock Exchange and China Securities Index Co., Ltd. have decided to revise the compilation schemes for certain SSE series composite indices. The revisions include: adding a weight cap rule that the weight of a single constituent shall not exceed 15%; and adjusting the exclusion timing for risk-warning securities from "the next trading day after the second Friday of the month following the implementation date of the risk warning" to "the next trading day after the second Friday of the month following the announcement date of the risk warning." The remaining parts of the index compilation schemes remain unchanged. The revisions to the compilation schemes of the above indices and their derivative indices will be implemented on October 26, 2026.