Sergey Kasyanenko & family

Sergey Kasyanenko cofounded Orimi, Russia's largest producer of tea and roasted coffee.

Orimi was founded in 1994 as the Orimi Trade company, which ran wholesale trade of flour, sugar and tea.

The company would become a major player in the Russian tea market, eventually launching its own tea packaging production.

Most of his fortune is cash, thanks to $1.5 billion of Orimi dividends paid over more than a decade.