OGK Group (United Mining Contractor) – Russian unique full-cycle service company that offers a comprehensive approach to exploitation of solid mineral deposits (SMD) at all stages: carries out all kinds of exploration drilling, blasting and blast hole drilling, underground development, loading and hauling of rock. The company is a contractor of the leading Russian mining companies. OGK Group operates in Russia and abroad. It is in the top drilling companies in the global core drilling market based on 2021 results, according to competent international magazine “Coring Magazine”.