Russia-based mining and metal company Mechel PAO will double its equipment infrastructure investment in 2022 as it seeks to increase output and cut costs across its operations.

Speaking during a review of its 2021 equipment upgrades, Oleg Korzhov, Mechel PAO's chief executive officer, said it would invest 8 billion roubles ($US111 million) in 2022.

Korzhov said the company is faced with a "strategic task" to restore stripping pace and increase mining and washing volumes.

Its next investment plans would enable the company to "reduce outages caused by repairs" and boost output at Irkutsk, Yakutia, and Kuzbass facilities.

"Considering steady demand and favorable price trends on commodity markets that we see over the past several quarters, it is very important for us to ensure production growth," Korzhov commented.

In 2021, Mechal PAO's mining facilities received 270 equipment units, including more than 80 large-scale machines and assembly units.

The company's biggest revamp was at its Southern Kuzbass Coal Company, which received more than 100 new equipment units.

The Korshunov Mining Plant received 90 equipment units, including heavy-duty trucks, excavators and a boring rig, as well as new hydro separators.