The notice from the U.S. Trade Representative’s office said tariffs on Chinese-made solar wafers and polysilicon will rise to 50% from 25% and duties on certain tungsten products will increase

Tariffs on solar wafers and polysilicon will rise to 50%, while certain tungsten products will see a 25% increase.

A day after US President Joe Biden warned that Donald Trump’s plan for higher tariffs would be a “major mistake”, his own administration has levied costly new tariffs on imports of critical materials from China.