FTA: Deripaska, a metals tycoon and close friend and ally of Putin, remains sanctioned, meaning no American may conduct business dealings with him directly or indirectly. He has come under scrutiny in the United States for his ties to the Kremlin as well as to Paul Manafort, who served as President Donald Trump’s campaign chairman and has since been convicted of a range of federal crimes in connection with special counsel Robert Mueller’s Russia probe.