从EDA软件解禁到稀土博弈：中美科技战的攻守转换

Group 1: EDA Software Market and Regulations - The U.S. Department of Commerce has lifted the requirement for Synopsys, Cadence, and Siemens to apply for government licenses when conducting business in China, following a previous ban imposed on May 23, 2025 [1] - By 2024, the global market shares for these EDA companies are projected to be 31%, 30%, and 13% respectively [1] - The lifting of the ban is linked to a framework established on June 27, 2025, where China agreed to review export applications for controlled items, leading to the U.S. canceling corresponding restrictions [1] Group 2: Rare Earth Elements and Strategic Importance - Rare earth elements consist of 17 metals and are crucial for over 200 commercial, high-tech, and military products, with China dominating the heavy rare earth separation sector [3][5] - China controls approximately 80% of the global rare earth refining capacity and produces 99% of the world's heavy rare earth elements [5] - The strategic value of rare earths has led China to implement export controls on key materials, which are essential for various industries [3][5] Group 3: U.S. Rare Earth Supply Chain Challenges - The U.S. has historically relied on outsourcing for rare earth production, leading to a significant dependency on China [6][7] - Recent U.S. initiatives aim to rebuild the domestic rare earth supply chain, with an estimated cost in the thousands of billions [7] - The U.S. Department of Defense has set a goal to establish a domestic supply chain for rare earths by 2027, covering all critical nodes from mining to magnet manufacturing [7] Group 4: Global Competition and Alternatives - Countries are investing resources to find alternatives to Chinese rare earths, but the transition will take years [9] - The EU has announced new mineral projects to diversify raw material sources, including rare earths, but faces environmental concerns and lengthy approval processes [9] - The trend of nationalizing key mineral resources is emerging in South America and Africa, as governments seek to maintain control over their mineral wealth [9]