大中矿业：公司的金属锂电池材料项目分三期建设，预计2025年完成金属锂电池新材料研发、小试、中试

Core Viewpoint - The company is investing 1 billion yuan in a lithium metal battery project, leveraging its mining resources and confidence in the new energy sector's future [2]. Group 1: Investment and Project Details - The company is investing 1 billion yuan to develop lithium metal battery materials, which is an extension of its main product, lithium carbonate [2]. - The project will be executed in three phases, with the first phase focusing on research and development, expected to be completed by 2025 [2]. Group 2: Industry Context - The investment is based on a thorough analysis of the global lithium industry chain and the company's strong belief in the prospects of the new energy sector [2].