Tranche Update on Ningbo Changhong Polymer Scientific and Technical Inc.'s Equity Buyback Plan announced on September 5, 2023.

From September 4, 2023 to September 30, 2023, the company has repurchased 692,500 shares, representing 0.11% for CNY 10 million. With this, the company has completed the repurchase of 692,500 shares, representing 0.11% for CNY 10 million under the buyback announced on September 5, 2023.