5. Leonid Mikheson
Mikhelson is a partner in natural gas producer Novatek and petrochemical business Sibur with Gennady Timchenko. He began his career as a foreman for a construction business in Russia’s Tyumen region, where he was working on a gas pipeline.
Mikhelson and his business partner, Gennady Timchenko, a billionaire with deep links to Russian President Vladimir Putin, began talks in 2010 to buy Sibur, Russia’s largest petrochemical company. Mikhelson owns around 60% of the corporation. Networth $29.2Billion