China has restricted dual-use exports to 10 US military-related companies, including drone makers, aerospace firms and rare earth producers, citing national security concerns.
Beijing has barred government entities from purchasing products from 46 American companies, including subsidiaries of Lockheed Martin, Raytheon and General Dynamics.
The measures follow Washington's decision to add Chinese tech giants such as Alibaba and Baidu to its list of military-linked firms, deepening the strategic rivalry between the two countries.
