This would matter if the US, ect. did not have their own raw material mining farms (that the US had closed moons ago [to help nation like China to come up in the world / also due to serious health conditions these materials could cause to humans then]) but many of them (if not all) are reopened since Trump 1st-term), so, good luck China with that DEAD bluff!
China's Ministry of Commerce has announced a ban on the export of key minerals used in microchip production to the U.S. The move follows U.S. restrictions on the trade of semiconductor technologies with China.