The US has broadened its sanctions on Russia, including targeting China-based companies selling semiconductors to Moscow, as part of an effort to cut funding for the war in Ukraine.
Semiconductors have been found in a wide array of Russian equipment, from drones to radios, missiles and armoured vehicles, recovered from the battlefield, Ukrainian officials say.
The US Treasury said it is raising "the risk of secondary sanctions for foreign financial institutions that deal with Russia's war economy", effectively threating to revoke Moscow's access to the US financial system.
It also said it is moving to restrict Russia's ability to use certain US software and IT services and, alongside the State Department, targeting more than 300 individuals and entities in Russia and across Asia, Europe and Africa.
In addition, the Commerce Department said it is targeting shell companies in Hong Kong for diverting semiconductors to Russia, taking steps that would affect nearly $100m of high-priority items for Moscow including chips.
Dmytro Kuleba, Ukraine's foreign minster, welcomed the sanctions.
"We particularly applaud tough measures against Russia's defence-industrial base and its access to technology and resources abroad," he wrote on X.
"Any entity assisting Russia in the production of weapons must be subjected to the most intense pressure."
