美国卡内基国际和平基金会:《保障美国关键矿产供应研究报告》

Core Argument - The article emphasizes that the U.S. cannot achieve mineral independence solely through domestic mining efforts, highlighting the structural challenges in the supply chain for critical minerals essential for modern economy and national security [3][4][13]. Domestic Supply Challenges - Even in the most optimistic growth scenarios, by 2035, U.S. domestic production will only meet the projected demand for zinc and molybdenum, while significant reliance on imports will remain for copper, graphite, lithium, silver, nickel, and manganese [3][4]. - The U.S. is projected to have a 62% dependency on copper imports and a staggering 282% shortfall in lithium supply by 2035, indicating fundamental flaws in a purely domestic mining strategy [3][4]. - Geological limitations and high production costs hinder the U.S. from becoming self-sufficient in critical minerals, with existing copper production costs exceeding the global average by 8% [3][4][6]. Processing and Refining Bottlenecks - The U.S. faces significant capacity gaps in the midstream processing of minerals, particularly in copper smelting, where competition from China has severely impacted Western firms' profitability [4][6]. - Current U.S. smelting capacity is insufficient to process all domestically mined ores, necessitating reliance on foreign processing, particularly in China [6][7]. Policy and Strategic Recommendations - The article advocates for a mixed strategy combining "onshoring" and "friendshoring" to build a resilient and diversified global supply chain for critical minerals [8][9]. - A coherent national strategy is essential, moving beyond tariffs and fragmented subsidies to establish a public-private partnership that fosters innovation and competitiveness in the mining sector [11][12]. - The report suggests implementing a price guarantee mechanism, such as "Contract for Difference," to provide price certainty for high-cost domestic mining projects, thereby attracting private investment [12]. Priority Minerals and International Cooperation - Nickel and cobalt are identified as critical for high-performance batteries, with Australia and Canada being reliable partners for supply [10]. - Lithium, graphite, and manganese are highlighted as essential materials for battery manufacturing, necessitating strategic partnerships with countries like Australia, Canada, and those in South America [14]. - The U.S. must establish stable supply relationships with traditional silver-producing countries in Latin America to meet the increasing demand from the solar industry [14].