<p>➀ The Biden-Harris administration is investigating China's production of mature process semiconductors under the 301 trade law, citing national security threats and reducing U.S. dependence on these chips.</p><p>➁ The U.S. Trade Representative's office is initiating a 301 investigation to review China's targeting of mature semiconductors as a dominant position and its impact on the U.S. economy.</p><p>➂ The U.S. is investing in the entire semiconductor supply chain, including upstream materials like silicon carbide and wafers, with billions of dollars in private sector investments.</p>