Tunnel Corporation: Controlling shareholder increases stake by 2.00%

Tunnel Corporation Announcement: The controlling shareholder, Shanghai Urban Construction Co., Ltd., has increased its holdings of the company's A shares through centralized bidding from May 16, 2025 to September 12, 2025, with a total of 62.8818 million shares, accounting for 2.00% of the total share capital of the company. The amount of the increase is 399 million yuan, and the shareholding ratio has increased from 30.49% to 32.49%. The increase plan has been completed.