Group 1 - The market interest in metal-air batteries is increasing due to supportive policies, with several companies in the supply chain disclosing their developments [1][2] - Metal-air batteries utilize reactive metals like zinc, magnesium, and aluminum as anodes, with air electrodes as cathodes, and include types such as zinc-air, magnesium-air, and aluminum-air batteries [1] - Wuxi Xian Dao Intelligent Equipment Co., Ltd. announced its technical layout in the air battery field and encouraged stakeholders to follow future updates [1] - Shenzhen Xinyuan Material Technology Co., Ltd. highlighted its expertise in separator technology, which is crucial for metal-air batteries, and its focus on advanced material research [1] - Guangzhou Penghui Energy Technology Co., Ltd. mentioned its long-standing experience in battery manufacturing and its commitment to developing metal-air batteries among other types [1] Group 2 - National policies, including the "Action Plan for Promoting the Development of Automotive Power Battery Industry" and the "14th Five-Year Plan for New Energy Storage Development," have identified metal-air batteries as a key research direction [2] - The core competitiveness of metal-air batteries lies in their high theoretical energy density and low material costs, utilizing abundant metals like aluminum and zinc [2] - Metal-air batteries are considered safe and environmentally friendly due to their use of aqueous electrolytes, making them less flammable and suitable for applications requiring lightweight and long-range capabilities [2] - The long-term development outlook for metal-air batteries is optimistic, driven by growing demand in the new energy and storage sectors [2]