Coal mining in the depositions in Rostov oblast is one of the most actively growing areas of mining and energy industries of the region.

Historically, this region has rich and extensive deposits of unique high-quality anthracite, which constitutes 90% of all explored deposits of mineral resources of solid fuels. The quality of the anthracite coal, extracted here, is considered to be one of the best in the world and is referred to as super anthracite.

Coal, with which E.CONNECT works, belongs to the highest level of the coal metamorphism and is metaanthracite. Volatile matter content of metaanthracite is equal to or less than 2%. In other words, the fixed carbon is equal to or greater than 98%.