Konstantin Nikolaev Konstantin Nikolaev Konstantin Nikolaev () is a billionaire Russian businessman who is a co-owner of and , the largest private rail operator in Russia, CIS, and the Baltic states. He is a major investor in American Ethane and serves on its board. Late July 2018, his net worth was estimated at $1.2 billion. He allegedly is a financial supporter of Maria Butina. Through Igor Levitin, Alexey Mordashov, Arkady Rotenberg, Gennady Timchenko, and Alexander Voloshin, Konstantin Nikolaev is a partner and close associate of numerous persons in Vladimir Putin's inner circle. In 1996, Nikolaev, Nikita Mishin, Andrei Filatov, and Alexey Mordashov
Rotenberg (hills) the north, Herzberg am Harz to the northeast, Bad Lauterberg to the east, Duderstadt to the south, Göttingen to the southwest and Northeim to the northwest. According to the official classification of natural regions of Germany the ridge belongs to the landscape unit of the Eichsfeld Basin in the Weser-Leine Uplands. The Rotenberg is surrounded by the following other ranges: the Harz Mountains to the north and, somewhat further away, the Ohm Hills to the southeast and the Göttingen Forest to the southwest. The Rotenberg hills lie on the watershed between the Oder and Beber rivers in the north and