ThreeArc Mining LLC

ThreeArc Mining LLC is a privately held Russian rare-earth and rare-metals developer behind the Tomtor (Tomtorskoye) deposit in the Sakha Republic (Yakutia), regarded as one of the world’s top niobium and rare-earth projects. Situated about 110 km east of the village of Ebelyakh, Tomtor hosts high-grade niobium and light rare-earth mineralization. ThreeArc Mining LLC, linked to Russian businessman Alexander Nesis, organized the project through subsidiaries including Vostok Engineering (mining and logistics), the Krasnokamensk leaching and metallurgical plant and RedZem Technology for light rare-earth separation. Plans called for roughly 14,000 tonnes of ferroniobium and 16,000 tonnes of rare-earth oxides per year, a volume capable of supplying a significant portion of global rare-earth oxide demand. Russian oil major Rosneft subsequently moved to take full control of project operator Vostok Engineering, reflecting state-aligned consolidation of this strategically important Siberian rare-earth and niobium resource.

This is a duplicate of the ThreeArc Mining record, which is the main record for the company.