The investment firm founded by Jacob Rees-Mogg has links to a billionaire Russian sanctioned last week by Boris Johnson.
Putin ally Gennady Timchenko, the boss of energy and transport giant Volga Group, was in the first wave of Russians targeted by the PM as Vladimir Putin began the invasion of Ukraine.
But he is also a director of the firm Novatek invested in by the company Somerset Capital Management the Brexit Opportunities minister got an estimated £600,000 in dividends from last year.