Nvidia Corp.’s shares were tumbling in after-hours trading Tuesday, after the chip giant disclosed in a regulatory filing that it expects to include charges of up to $5.5 billion in its fiscal first quarter related to licensing of its chips to the Chinese market.

Nvidia said it is set to take a $5.5 billion first-quarter charge after the U.S. limited exports of its artificial intelligence (AI) chips to China. The news, the latest salvo in an escalating trade war between Washington and Beijing,

Nvidia on Tuesday said it would take $5.5 billion in charges after the U.S. government limited exports of its H20 artificial intelligence chip to China, a key market for one of its most popular chips.

Separate warnings by the chipmaking giant and the chairman of the Federal Reserve about the impact of White House policies contributed to another sell-off on Wall Street.

U.S. stocks fell Wednesday after Nvidia warned new restrictions on exports to China will chisel billions of dollars off its results, while companies around the world said President Donald Trump’s trade war is clouding forecasts for how they and the economy will do this year.