China has enacted export controls targeting 10 US defense and rare-earth companies and procurement restrictions affecting 46 US firms, effective Monday, citing national security and response to US actions. Supported claims identify specific firms including Lockheed Martin, Raytheon, Oshkosh Defense, and Boeing's defense division, with exemptions for companies holding US investments in China. Lower-quality reports reference a US blacklist expansion that includes Alibaba, Baidu, and BYD.