SUEK uses open-pit and underground mining to produce brown, hard and coking coal.
of our coal mined by open pits
We operate 14 open pits, comprising eight hard coal and six brown coal deposits. Open-pit mining is the most efficient method of production in shallow deposits. It can extract all the coal within an area and fully recover very thick seams. Some of our open pits extract seams of 30 metres or more. Many of our open pits have been improved in recent years to increase output and efficiency.
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of our coal comes from underground mines
We operate 12 underground mines in Siberia and far-eastern Russia. Most of our mines extract seams of two to five metre thickness and all are accessed via inclines driven from the surface. Coal is typically transported from working areas to the surface by belt conveyor with only one mine using a shaft winder. Modern, fully mechanised longwall methods are used throughout. Increased production from longwall faces has required improved roadheaders and bolter miners to speed up development.