Tranche Update on Hangzhou Zhongtai Cryogenic Technology Corporation's Equity Buyback Plan announced on March 19, 2024.

From March 19, 2024 to March 31, 2024, the company has repurchased 954,500 shares, representing 0.25% for CNY 12.77 million. With this, the company has completed the repurchase of 954,500 shares, representing 0.25% for CNY 12.77 million under the buyback announced on March 19, 2024.