Group 1 - The 7th China International New Materials Industry Expo (New Expo) commenced in Harbin, Heilongjiang Province, focusing on the integration of artificial intelligence and new materials industry [1][3] - The event features over 1,000 enterprises and institutions from more than 10 countries and regions, emphasizing "digital intelligence-driven" opportunities and "cooperation and win-win" future [1][3] - The expo spans three days and includes three exhibition areas: thematic, professional, and application exhibitions, showcasing over 4,000 innovative products and application scenarios in the new materials field [3] Group 2 - The thematic exhibition highlights innovative achievements in China's new materials sector during the 14th Five-Year Plan period, while the professional exhibition focuses on AI-enabled new materials [3] - The application exhibition demonstrates typical application scenarios of new materials in marine, land, and air fields [3] - Over 40 activities will be organized during the expo, discussing cutting-edge technologies and hot topics such as AI-driven material technology transformation and efficient utilization of non-food biomass resources [3]

Group 1 - The first International Low Altitude Economy Expo was held from July 23 to 26 at the National Exhibition and Convention Center in Shanghai, covering an area of 60,000 square meters and gathering nearly 300 exhibitors [1] - The expo focused on the development needs of low-altitude enterprises and the implementation of application scenarios, showcasing low-altitude infrastructure, manufacturing, and supporting services, as well as applications in low-altitude transportation, urban management, commercial integration, and personal consumption [1] - China Post has been involved in the drone industry since 2016 and began to layout its drone operations in 2019, establishing regular flight routes and accumulating industry application experience [1] Group 2 - China Post's drone logistics network is based on its postal network distribution and logistics business, implementing a "1+3+N" drone low-altitude transportation network system, focusing on rural express delivery, emergency support, medical cold chain, and general support [1] - The establishment of China Post Drone (Beijing) Co., Ltd. on December 18, 2024, introduced two products for emergency transportation of medical supplies and material transport in harsh environments [1] - The H100 hydrogen-powered drone from Qihydrogen (Shanghai) can carry 100 kilograms, features a dual 6kW air-cooled fuel cell system, and can start quickly in extreme cold conditions, making it suitable for various applications such as agricultural protection and fire inspection [1] Group 3 - The large-load unmanned helicopter introduced by United Aircraft can be widely applied in emergency communication, firefighting, logistics transportation, forest and grassland patrol, and power inspection [2] - The development of drones in various application scenarios is accompanied by the need for defensive countermeasures, which are essential for their regulated development [2] - The North Automatic Control Technology Research Institute of China Weapons presented a modular low-altitude defense detection command vehicle, capable of detecting radio signals and implementing interference and suppression, thus forming an integrated defense system [2]