与乌签署矿产协议的背后，美国挖空心思寻找关键矿源

Group 1 - The U.S. has a long-term reliance on imports for critical mineral resources, which has led to increased resource acquisition costs for related manufacturing due to "reciprocal tariffs" [1] - A new agreement has been signed between Ukraine and the U.S. to establish the U.S.-Ukraine Reconstruction Investment Fund, aimed at investing in mining, oil, gas projects, and related infrastructure [1] - Ukraine holds a significant position in the global mineral resource supply chain, with over 8,000 identified mineral deposits and 22 out of 50 critical minerals listed by the U.S. [2] Group 2 - The U.S. Department of Energy has included 50 types of mineral products in its critical minerals list for 2023, with a significant portion of these being heavily reliant on imports [2] - A trade investigation has been initiated by the Trump administration to assess the impact of imported critical minerals on national security, which may lead to the imposition of tariffs [3]