Rusolovo won an auction for the right to use a subsoil area of alluvial gold and tin sands of the Mleluveem River in the Chaunsky District of the Chukotka Autonomous District. Balance reserves of the site amount to 893 kg of placer gold of C1 category and 58 tons of tin. Inferred resources of tin by category P1 at the site amount to 677 tons. Cost of the license is ₽40.33 million. Term of use of the subsoil plot is 15 years.