In the latest escalation of trade tensions between the world’s two largest economies, China on Thursday announced export control measures targeting 28 U.S. companies and added 10 U.S. companies to a list of entities barred from doing business in China. The larger group of companies is made up primarily of firms active in defense contracting and includes Lockheed Martin and five of its subsidiaries; General Dynamics and three of its subsidiaries; three subsidiaries of Raytheon; one…
