Shanghai Silicon Industry announced that as of December 15, 2025, directors and senior management increased their holdings of the company's shares by a total of 229,700 shares through centralized bidding, accounting for 0.0072% of the company's total share capital. The total amount of increase in holdings was RMB 4.6892 million. The implementation of this holdings increase plan has not yet been completed, and the entities that increase their holdings will continue to increase their holdings of the company during the implementation period of the holdings increase plan in accordance with the relevant holdings increase plan.

Shanghai Silicon Industry announced that as of December 15, 2025, directors and senior management increased their holdings of the company's shares by a total of 229,700 shares through centralized bidding, accounting for 0.0072% of the company's total share capital. The total amount of increase in holdings was RMB 4.6892 million. The implementation of this holdings increase plan has not yet been completed, and the entities that increase their holdings will continue to increase their holdings of the company during the implementation period of the holdings increase plan in accordance with the relevant holdings increase plan.