China said it would tighten export controls for five key minerals, but industry watchers said the move by Beijing wouldn’t have significant consequences for U.S. business. The controls span tungsten,

China hits back at U.S. tariffs by restricting export of crucial metals: tungsten, tellurium, bismuth, molybdenum and indium.

China said on Tuesday it would restrict exports of five metals used in defence, clean energy and other industries in response to fresh U.S. tariffs, refraining from the outright export bans Beijing has previously used against Washington.