Tranche Update on NanJing Research Institute of Surveying, Mapping & Geotechnical Investigation, Co.Ltd's Equity Buyback Plan announced on May 23, 2023.

From July 1, 2023 to September 30, 2023, the company has repurchased 1,340,294 shares, representing 0.92% for CNY 20.98 million. With this, the company has completed the repurchase of 1,340,294 shares, representing 0.92% for CNY 20.98 million under the buyback announced on May 23, 2023.