Tranche Update on Beijing Sanlian Hope Shin-Gosen Technical Service Co., Ltd.'s Equity Buyback Plan announced on March 3, 2021.

From April 1, 2021 to May 31, 2021, the company has repurchased 883,300 shares, representing 0.28% for CNY 14.28 million. With this, the company has completed the repurchase of 4,121,581 shares, representing 1.28% for CNY 60.27 million under the buyback announced on March 3, 2021.