China said on Tuesday that it would begin banning the export of several rare minerals to the United States, an escalation of the tech war between the world’s two biggest powers. The move comes a day after the Biden administration tightened Chinese access to advanced American technology.
The ban signals Beijing’s willingness to engage in supply chain warfare by blocking the export of important components used to make valuable products, like weaponry and semiconductors.
Sales of gallium, germanium, antimony and so-called superhard materials to the United States would be halted immediately on the grounds that they have dual military and civilian uses, China’s Ministry of Commerce said. The export of graphite would also be subject to stricter review.
China is central to many global supply chains, but it generally refrained from clamping down on its own exports during the first Trump administration, preferring instead to take more limited actions like buying soybeans from Brazil instead of the United States. But senior Chinese officials are worried that President-elect Donald J. Trump plans more stringent policies during his coming term in office.
Mr. Trump has promised to put hefty tariffs on goods from China and further sever the trading relationship between the countries. The move on Tuesday — one of the most aggressive steps China has taken to counter increasingly restrictive policies from the U.S. government — could foreshadow more economic conflict as Mr. Trump enters the White House.
China produces nearly all the world’s supply of critical minerals needed to make advanced technologies such as semiconductors. Beijing has been tightening its grip on the materials to retaliate for clampdowns on American technology exports to China over the past two years.
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