China is going after Boeing, America’s biggest exporter, in its trade war with the U.S. Beijing has told Chinese airlines not to place new orders for Boeing jets and is requiring carriers to seek approval before taking delivery of aircraft they have already ordered,

China has ordered its airlines not to take any further deliveries of Boeing jets in response to the U.S. decision to impose 145% tariffs on Chinese goods, Bloomberg News reported on Tuesday, citing people familiar with the matter.

China’s Juneyao Airlines Co. is delaying delivery of a Boeing Co. widebody aircraft, according to people familiar with the matter, highlighting how the escalating trade war between Washington and Beijing is driving up the price of big-ticket goods.