The founder of aluminium giant Rusal was alleged to have breached an undertaking to the court in a lawsuit brought by former Russian finance minister Vladimir Chernukhin over a joint venture to develop real estate in Moscow.

Chernukhin said Deripaska was in contempt by allowing EN+ Group, which owns a 57% stake in Rusal, to relocate from Jersey to Russia in response to U.S. sanctions. But Judge Mark Pelling ruled on Wednesday that Chernukhin had not proved his case against Deripaska.

(Reporting by Sam Tobin, editing by Sarah Young)