China, which supplies the vast majority of the world’s humanoid robots, has suddenly been cut off from its largest export market as the US government moves to curb its reliance on foreign technology.

Citing security and economic reasons, the U.S. FCC has moved to ban foreign humanoid robots as well as quadruped robots from the American market.

The Trump administration on Tuesday banned imports of new Chinese-made humanoid and quadruped robots, as well as connected power inverters, in a move aimed...