The U.S. unveiled a established of visa and export restrictions focusing on Chinese point out-owned businesses and their executives involved in advancing Beijing’s territorial claims in the contested South China Sea, a new challenge to China involving the strategic waters.

Wednesday’s steps by the Point out and Commerce departments use to a array of point out-owned enterprises, such as units of China Communications Development Co., a main contractor for Chinese leader Xi Jinping’s Belt and Street initiative to produce infrastructure and…