中国对美贸易战，掀起大反攻了！

Group 1 - China has initiated an antitrust investigation against Qualcomm, highlighting its monopolistic position in the mobile chip market, where it dominates nearly all major players except for Apple, Huawei, and Samsung [2][6] - Qualcomm's business model involves charging a royalty based on the entire device price rather than just the technology used, leading to significant costs for Chinese smartphone manufacturers, which often struggle with low profit margins [4][6] - The investigation aims to address the perceived unfairness of Qualcomm profiting from the Chinese smartphone market while simultaneously benefiting from U.S. sanctions against Huawei [6] Group 2 - China has implemented comprehensive export controls on rare earth materials, mirroring U.S. strategies against Chinese chips, effectively creating a full supply chain blockade [7][11] - The export restrictions cover all aspects of rare earth production, including technology, equipment, and finished products, requiring Chinese permission for any overseas transactions [7] - This move is seen as a direct response to U.S. actions and aims to leverage China's position in the rare earth market [11] Group 3 - China has introduced a special port service fee for U.S. flagged vessels, as a retaliatory measure against similar fees imposed by the U.S. on Chinese ships, indicating a tit-for-tat approach in trade relations [9][11] - This fee applies to all U.S. registered ships docking at Chinese ports, reflecting a broader strategy of reciprocal economic measures [9] Group 4 - China's advancements in domestic chip technology, including breakthroughs in DUV lithography machines and ongoing development of EUV machines, are positioning the country to reduce reliance on foreign technology [11][12] - Chinese companies like Alibaba, Xiaomi, NIO, and XPeng are developing their own competitive chip products, indicating a significant shift in the domestic tech landscape [11] - The decreasing dependency on U.S. imports, with shifts towards other countries for energy and agricultural products, further strengthens China's negotiating position in trade [12]