Adamant Holding Company took part in the 11th St. Petersburg Builders Congress held on 6 December 2013 in Lenexpo Exhibition Complex. The St. Petersburg Builders Congress is one of the main events in the life of the city’s investment and industrial complex. The Congress is held annually with the participation of representatives from Federal and St. Petersburg authorities, about one thousand managers from the leading enterprises and organizations in the building industry and self-regulated city organizations.