隧道股份(600820.SH)控股股东累计增持公司2%股份

Group 1 - The core point of the article is that Tunnel Corporation (600820.SH) has completed a share buyback plan initiated by its controlling shareholder, Shanghai Urban Construction Group [1] - The controlling shareholder increased its stake by acquiring a total of 62.8818 million A-shares, which represents 2% of the company's total share capital [1] - The total amount spent on the share buyback was approximately RMB 399 million, excluding transaction fees [1]