Beijing —

Beijing announced a swath of measures against the United States and its firms on Wednesday, in what it described as retaliation against recent moves by Washington targeting Chinese companies.

The tit-for-tat sanctions come weeks ahead of an expected summit between Chinese leader Xi Jinping and President Donald Trump in the US next month, as the world’s two largest economies struggle to maintain what they’ve called “constructive strategic stability” amid an intensifying tech rivalry.

China’s Ministry of Commerce announced it was sanctioning seven American entities, including a biotech and a resource analytics firm, and tightening export controls on drones to the US.

It also launched a national security investigation into imported office equipment with foreign system software, and suspended certain factory tracking inspection collaboration with the US.