China imposed sanctions on 20 US defence companies and 10 senior executives in response to the US's $11.1 billion weapons package for Taiwan. The sanctions freeze assets of the targeted firms and ban domestic cooperation with them, as well as prohibit sanctioned individuals from entering China. This action escalates tensions between China and the US over Taiwan's military support and reflects Beijing's strong opposition to foreign arms sales to the island. The sanctions took effect on December 26, 2025.