Group 1: Event Details - Zhengzhou Coal Mining Machinery Group will participate in the "Sincere Communication, Delivering Value" online investor reception day on June 8, 2021 [1] - The event will be held from 16:00 to 17:20 and will be conducted remotely [1] - Investors can join the event via the "Panorama Roadshow" platform [1] Group 2: Attendees - The attendees include Mr. Jia Hao (General Manager), Mr. Zhang Haibin (Board Secretary), and Mr. Zhang Yichen (Head of Strategic Development Department) [1] - Attendance may be adjusted due to special circumstances [1] Group 3: Company Assurance - The Board of Directors guarantees that the announcement contains no false records, misleading statements, or major omissions [1] - The Board takes individual and joint responsibility for the truthfulness, accuracy, and completeness of the content [1]