Logan produces primarily High-Vol Met coal (HVA HCC and HVB HCC), mined from various seams of the Kanawha Formation, most of which are situated below drainage; however, several Met coal seams are situated above drainage. Logan also produces thermal coal from upper portions of the Kanawha Formation.

The Property lies in the Central Appalachian Coal basin in the Appalachian Plateau physiographic province.

The coal deposits in the eastern USA are the oldest and most extensively developed coal deposits in the country. The coal deposits on the Properties are Carboniferous in age, being of the Pennsylvanian system. Overall, these Carboniferous coals contain two-fifths of the USA’s bituminous coal deposits and extend over 1,448 kilometers from northern Alabama to Pennsylvania and are part of what is known as the Appalachian Basin. The Appalachian Basin is more than 402 kilometers wide and, in some portions, contains over 60 coal seams of varying economic significance.

Seams of economic significance typically range between 0.3 meters and 1.8 meters in thickness, with relatively little structural deformation. Regional structure is typically characterized by gently dipping strata to the northwest at less than one percent.

The coal-bearing formation of interest at Logan is the lower section of the Allegheny Formation and the Kanawha Formation, which comprise a major portion of the exposed ridges. The Formation are a coal bearing sequence of sa ........

Most of Logan’s Met coal production is attributable to its four active underground mines, Winifrede, Lower War Eagle, Eagle No. 1 and Muddy Bridge, each of which uses the room and pillar mining method. The North Fork Winifrede mine utilizes one continuous miner section to extract coal from the Upper Winifrede seam, which is situated above drainage throughout the property and accessed by drift entry. The Lower War Eagle mine utilizes two continuous miner super sections to extract coal from the Lower War Eagle seam, which is situated below drainage throughout the property and accessed by slope. The Eagle No. 1 mine utilizes three continuous miner super sections to extract coal from the No. 2 Gas
seam, which is situated above drainage throughout the property and accessed by drift entry. The Muddy Bridge mine utilizes two continuous miner super sections to extract coal from the No. 2 Gas seam, which is situated above drainage throughout the property and accessed by drift entry.

A majority of the sections of the active underground mines at Logan are configured as full super sections, with two continuous miners per section. Each section also has two or four roof bolters, three or six shuttle cars and two scoops. From the continuous miner at the production face, the shuttle cars haul extracted coal to a feeder breaker, which transfers raw coal to a conveyor belt for transport to a surface stockpile holding area. A shared overland conveyor carries raw coal from the L ........

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