Tranche Update on Jiangsu Sidike New Materials Science & Technology Co., Ltd.'s Equity Buyback Plan announced on September 15, 2023.

From October 1, 2023 to December 31, 2023, the company has repurchased 1,843,471 shares, representing 0.41% for CNY 29.99 million. With this, the company has completed the repurchase of 1,843,471 shares, representing 0.41% for CNY 29.99 million under the buyback announced on September 15, 2023.