The Toshtuozek mine is one of the largest cobalt mines in Russia. The mine is located in Altai Republic. The mine has reserves amounting to 33 million tonnes of ore grading 0.15% cobalt, 0.6% copper, 0.75% tungsten and 2.11 million oz of gold.
- "Toshtuozek mine". Imperial Mining. 2012. Retrieved 2013-07-07.