美国关键矿产清单“扩容”，拟新增铜、硅、银、钾等六种矿产

Core Viewpoint - The U.S. Department of the Interior has proposed adding six minerals, including copper, silicon, silver, and potassium, to the 2025 critical minerals list, emphasizing their importance for the U.S. economy and national security [1][3][4]. Group 1: Proposed Additions - The six minerals proposed for addition are copper, potassium, silicon, silver, lead, and rhenium, which are deemed strategically significant for economic development and national security [4]. - Copper is highlighted as a key material for the electrical grid, transportation, and defense sectors, with increasing demand driven by the growth of data centers and artificial intelligence [3][4]. - Potassium is primarily used in fertilizer production, playing a crucial role in ensuring agricultural production safety [4]. Group 2: Policy Implications - The update of the critical minerals list is seen as a roadmap to reduce U.S. dependence on imports and expand domestic production, reflecting the government's focus on enhancing the security of critical resource supply chains [3][4]. - Resources listed as critical minerals will benefit from various policy advantages, including federal funding support and streamlined permitting processes, which will enhance the competitiveness of domestic companies due to tariffs on imported products [4]. Group 3: Exclusions and Adjustments - Metallurgical coal and uranium, despite being considered for inclusion, were not added to the draft list, although public comments are welcomed for potential future inclusion [5]. - Arsenic and tellurium are recommended for removal from the critical minerals list, with the final list subject to adjustments based on public feedback during the 30-day comment period [6].