en.Wedoany.com Reported - Boguslavets LLC (part of the Zolotoy Aktiv group) plans to introduce a refractory ore roasting process at its Malo-Tarynsky deposit in the Yakutia region and double the annual capacity of the gold processing plant (ZIF) at the site from its current level to 600,000 tons. The company has issued a tender for the development of preliminary design and construction documentation for "ore heat treatment and subsequent processing of calcine in a ZIF with an annual capacity of 600,000 tons." According to the tender requirements, the contractor must develop the main process plan, and, under the organization of the district administration, conduct public discussions of the preliminary environmental impact assessment (EIA) materials and design documentation, ultimately obtaining a positive conclusion from the state environmental review.
Explaining the reason for introducing the roasting process, the company stated that ore from the Zeleny and Golubichny sections is highly refractory to traditional gravity and cyanidation processes. Therefore, prior to cyanide leaching, the raw ore requires pre-roasting to destroy gold-bearing sulfides and passivate (remove) natural adsorbents. Previously, Boguslavets had issued a tender for the development of a feasibility study (FS) for permanent exploration conditions and the calculation of C1 and C2 category reserves for the Golubichny and Zeleny deposits.
The Malo-Tarynsky gold-silver deposit is located in the Oymyakonsky District of Yakutia, specifically 70 km south of the town of Ust-Nera and 50 km from the village of Oymyakon. Boguslavets has held a license (YAKU 03656 BR) for geological study, exploration, and extraction of bedrock gold and silver at this deposit (within the Tarynsky ore field) since September 2013. At the time the license was obtained, the state balance sheet recorded open-pit reserves of: 12.54 tons of gold in C2 category with an average grade of 4.148 g/t; and 517 kg of gold in C2 zab. category. Forecast resources were: 38 tons of gold in P1 category, 70 tons of gold in P2 category (grade 9.3 g/t), and 2,717 kg of silver in P1 category (grade 0.87 g/t). These reserve figures were reassessed at the end of 2021. Currently, according to the company's website, its resource potential is approximately 32 tons of gold. The enterprise has already mined the Maly Taryn and Yakutskoye deposits and is conducting geological exploration work at the Polyarnik section.
In 2022, Boguslavets commissioned a mining and processing complex with an annual capacity of 300,000 tons of ore at the Maly Taryn deposit. In 2025, the enterprise generated revenue of 2.9 billion rubles, 6.09 times higher than the previous year, and its net loss decreased by 68% year-on-year to 403.9 million rubles.
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