Group 1 - The 25th China International Industry Fair (CIIF 2025) will be held from September 23 to 27, 2025, at the National Exhibition and Convention Center in Shanghai [1][19] - CIIF 2025 will feature nine specialized exhibitions, including CNC Machine Tools and Metal Processing, Industrial Automation, Robotics, Smart Energy, New Generation Information Technology and Applications, Future Mobility, Green Low-Carbon, Technological Innovation, and New Materials Industry [2] Group 2 - Pre-registration for attendees is now open, allowing individuals to receive a free ticket worth 50 yuan [2] - The pre-registration process includes options for both individual and group visitors, with specific deadlines for registration [9][14] - Group visitors can manage member information through a management panel and must bring valid identification for entry [15][18]