MOSCOW, August 2. /TASS/. The aggregate wealth of Russia’s 27 dollar billionaires grew by $10.14 billion in January-August 2017, Bloomberg said.

Of the 27 Russian dollar billionaires, 21 increased their wealth. Alexei Mordashov, the main shareholder of Severstal and Russia’s richest person with wealth estimated at $17.3 billion, earned $354 million in the reported period. Norilsk Nickel board chairman Vladimir Potanin earned $16.6 million, bringing his fortune to $16.6 billion. Renova group chief Viktor Vekselberg earned $1.34 billion, but remained third with wealth estimated at $15.6 billion.

Among other billionaires who added vast sums to their fortune are steel tycoon Vladimir Lisin (earned $1.82 billion), USM Holdings shareholder Alisher Usmanov (earned $1.77 billion) and president of Rusal and En+ Group Oleg Deripaska (earned $1.76 billion).

The biggest losses in the first seven months of 2017 were sustained by Novatek chief Leonid Mikhelson (lost $2.09 billion), Volga Group founder and owner Gennady Timchenko (lost $1.92 billion) and Lukoil president Vagit Alekperov (lost $1.13 billion).

Mordashov topped the Forbes list of Russia’s richest persons on Monday, July 31. His fortune was estimated at $16.8 billion.