Businesses need to stiffen their efforts to ensure that who they are transacting with – including intermediary financial institutions through which funds may pass – are not subject to newly imposed sanctions on Russia, experts have said. Stacy Keen, Michael Finn and Hinesh Shah of Pinsent Masons were commenting after the UK and US governments announced fresh sanctions on Russia on Tuesday. EU officials are expected to finalise a further package of sanctions at a meeting on Tuesday afternoon.