Polymetal International posted a 26% rise in third-quarter output, driven by new processing capacity.
The company said it achieved record production of 470 Koz of gold equivalent following the full ramp up of its Svetloye heap leach operation and Mayskoye oxide ore processing.
Albazino and Varvara also achieved record quarterly production levels, it said.
In the first nine months of 2017, the company produced 1,028 Koz of gold equivlanet, a 15% increase over the previous year.
It stuck to its full-year production guidance of 1.55 Moz, rising to 1.7 Moz for the 2019 financial year.