https://www.reuters.com/article/us-usa-russia-sanctions-tech/sanctions-blamed-as-silicon-valley-firms-wont-ship-some-kit-to-russia-idUSKBN1KH1TC

Two Silicon Valley firms have stopped shipping some electronic components to Russian customers even though they are not on the list of firms subject to U.S. sanctions, according to sources who work in the sector and a document seen by Reuters.