STEC(600820) 快讯·2025-05-16 08:28Core Viewpoint - The controlling shareholder, Chengjian Group, plans to increase its stake in Tunnel Corporation (600820) by investing between 250 million to 500 million yuan, representing up to 2% of the total share capital, by May 15, 2026 [1] Summary by Relevant Sections - Shareholding Increase Plan - Chengjian Group intends to acquire shares through various methods including centralized bidding, block trading, and asset management plans [1] - The total investment amount will not be less than 250 million yuan and not exceed 500 million yuan [1] - The increase in shareholding will not trigger a mandatory tender offer and will not change the controlling shareholder or actual controller of the company [1] - Funding Sources - The funds for this share acquisition will come from the group's own funds and/or self-raised funds [1] - Market Conditions and Risks - The implementation of the shareholding increase plan may be affected by changes in capital market conditions or other risk factors [1]