Core Viewpoint - A new lithium resource acquisition path is emerging from the aluminum industry in China, referred to as the "fourth lithium extraction route," which aims to reduce reliance on imported lithium resources and address technical challenges faced by the aluminum industry [1][2]. Group 1: Trends and Changes - China is facing dual pressures in the new energy and traditional industrial sectors, becoming the world's largest lithium consumer, accounting for approximately 45% of global consumption [3]. - However, domestic lithium resource reserves only account for 6% of global totals, leading to a high dependency on imports, projected to be 72.4% in 2024 [4]. - This contradiction between being a "demand country" and a "resource-poor country" poses significant challenges to supply chain security [5]. Group 2: Industry Collaboration - As the largest aluminum producer globally, China is also troubled by lithium elements, as many bauxite ores naturally contain lithium [6]. - In traditional alumina production processes, lithium can accumulate in electrolytic cells, causing operational issues when concentrations exceed 7%, leading to increased energy consumption and equipment wear [7]. - The urgent demand for lithium in the new energy sector, combined with the aluminum industry's need to remove lithium, has fostered cross-industry collaboration, transforming lithium from an "industrial burden" to a "new energy resource" [7]. Group 3: Participating Companies and Technical Paths - Chinese alumina companies and technology firms are accelerating the industrialization of lithium extraction from bauxite along two main technical paths [8]. - The first path involves extracting lithium directly from sodium aluminate solution, with projects like that of Luoyang Xin'an New Energy Co., which aims to produce 8,500 tons of battery-grade lithium carbonate annually [9][11]. - The second path focuses on recovering lithium from solid waste generated during aluminum electrolysis, with a collaboration between Suotong Development and Northeast University achieving over 85% lithium recovery from spent aluminum electrolyte [12][13]. - This technology not only provides low-carbon lithium resources for the new energy sector but also enhances the efficiency of aluminum electrolysis, reducing energy consumption and extending equipment lifespan [13]. Group 4: Future Outlook - As these technologies mature and are promoted, extracting lithium from aluminum by-products is transitioning from theory to practice, opening a new domestic lithium resource acquisition avenue for China [14].