Tranche Update on Hangzhou Huaguang Advanced Welding Materials Co.,Ltd.'s Equity Buyback Plan announced on November 10, 2022.

From November 9, 2022 to June 30, 2023, the company has repurchased 405,800 shares, representing 0.47% for CNY 6.94 million. With this, the company has completed the repurchase of 405,800 shares, representing 0.47% for CNY 6.94 million under the buyback announced on November 10, 2022.