开滦股份：关于参加2025年河北辖区上市公司投资者网上集体接待日暨2025年半年报集体业绩说明会的公告

Group 1 - The company, Kaitai Co., announced its participation in the "2025 Hebei Listed Companies Investor Online Collective Reception Day and 2025 Semi-Annual Report Collective Performance Briefing" [2] - The event is scheduled to take place on September 15, 2025 [2]