Alex van der Zwaan, an attorney, is accused of lying to investigators about his interactions with Rick Gates - the former Donald Trump campaign official and longtime associate of Paul Manafort who is also facing criminal charges in the special counsel's investigation - and an unidentified individual referred to in charging papers as "Person A".
Van Der Zwaan will admit that he wasn't truthful about his dealings with Rick Gates, Manafort's deputy, who is also charged and has been in negotiations about cooperating with prosecutors. The September conversations also involved a person dubbed by Mueller as "Person A", according to the court documents.
Zwaan -who according to the Kyiv Post is based in London and is the son-in-law of Russian oligarch German Khan - spoke to investigators on November 3, just a few days after Mueller's indictments against Manafort and Gates became public, the court documents said.
He was speaking with investigators about his work with worldwide law firm Skadden Arps in 2012, when Manafort arranged for the firm to be hired by the Ukrainian Minister of Justice to prepare a report on the trial of Yulia Tymoshenko.
Van Der Zwaan is the son of Russian oligarch German Khan.
The team of Special Counsel Robert Mueller, pictured here on June 21, 2017, has charged Alex Van Der Zwaan with allegedly lying to federal agents. The firm was employed by the Ukraine Ministry of Justice to compile a report about the trial of former Ukrainian Prime Minister Yulia Tymoshenko.
Gates met Manafort almost three decades ago while he was an intern at Black, Manafort, Stone, Kelly - one of the most powerful lobbying firms in DC.
Mueller is investigating Russian election interference and links between the Trump campaign and Russia.
Yanukovych was ousted from the presidency in 2014 amid widespread protests against his Russia-friendly positions and his decision to back out of a deal that would have promoted closer ties between Ukraine and the West, and distanced it from Russian Federation. They have both pleaded not guilty.
The new charge was announced Tuesday, just days after Mueller brought charges against 13 Russian nationals accused of interfering in the 2016 presidential election.