Boris Romanovich Rotenberg Boris Romanovich Rotenberg Boris Romanovich Rotenberg (, born in Leningrad on 3 January 1957) is a Russian business man and oligarch. He is co-owner (with his brother Arkady Rotenberg) of the SGM (StroyGazMontazh) group, the largest construction company for gas pipelines and electrical power supply lines in Russia. He was listed by Forbes as Russia's 69th wealthiest person in 2016 with a net worth of $1.07 billion. He is considered a close confidant of president Vladimir Putin. Rotenberg was very involved in martial arts between 1968 and 1978, particularly judo. He trained alongside Vladimir Putin and won several awards for
Arkady Kobyakov he enrolled in the Nizhny Novgorod choral chapel of boys (now Nizhny Novgorod choral College. L. K. Sivukhina), where he learned the rudiments of music on piano. The grandmother played an important role in the education of Arkady — she instilled in him a love for music, learned to accept life for what it is, and treat everything philosophically. When Arkady was still a child, his mother left the family, leaving him with his father, and in the future showed no interest in the fate of Arkady. His musical education Arkady to finish was not to be. Because of his