Coindesk provides a response by BitRiver:

*The firm and 10 of its subsidiaries were added to OFAC's list of designated nationals subject to sanctions.*
https://www.coindesk.com/policy/2022/04/21/bitriver-calls-ofac-sanctions-unfair-anti-competitive-move-to-benefit-us-miners/

BTCMiner

247bf84fda

In January, Vladimir Putin stated that Russia has distinct advantages when it comes to bitcoin mining as it relates to the energy surplus and climate conditions provided to them. The U.S Treasury agrees with the Russian president, stating “Russia has a comparative advantage in crypto mining due to energy resources and a cold climate.”

U.S Treasury Sanctions Russian Bitcoin Miners

https://bitcoinmagazine.com/markets/us-treasury-sanctions-russian-bitcoin-miners

bitcoin

Treasure department sanctions russian bitcoin miners

2big2fail

Another article on this topic:

> In January, Vladimir Putin stated that Russia has distinct advantages when it comes to bitcoin mining as it relates to the energy surplus and climate conditions provided to them. The U.S Treasury agrees with the Russian president, stating “Russia has a comparative advantage in crypto mining due to energy resources and a cold climate.”

*U.S Treasury Sanctions Russian Bitcoin Miners*
https://bitcoinmagazine.com/markets/us-treasury-sanctions-russian-bitcoin-miners