Summary:
The Property lies in the Central Appalachian Coal basin in the Appalachian Plateau physiographic province.
Coronado mines several coal seamswithin the Kanawha formaon. The seams are asfollows: Upper Clarion Rider, Clarion, Lower Clarion, Upper Stockton, Lower Stockton, Upper Coalburg, Lower Coalburg, Lower Dorothy, Chilton-A, Chilton, Buffalo Creek, Upper Winifrede, Lower Winifrede, Upper Cedar Grove, Middle Cedar Grove, Lower Cedar Grove, Upper Powellton, Lower Powellton, Eagle, No. 2 Gas and Lower War Eagle seams demonstrate mining potenal on this property.
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 is a coal-bearing sequence of sandstones, siltstones, shales, and mudstones with minor occurrences of siderite, limestone and flint clay.
In 2024, Logan had two active surface mines and four active underground mines. Limited surface mining occurred in a few seams of both the Buffalo Creek South and Toney Fork areas. The four underground mines include the Eagle No. 1, Muddy Bridge, Lower War Eagle and Powellton No. 1 Mines.
The active Toney Fork surface mine has historically mined multiple seams including the Upper Clarion Rider, Upper Clarion, Lower Clarion, Upper Stockton, Lower Stockton, Upper Coalburg, Lower Coalburg, Lower Dorothy, Chilton-A, Buffalo Creek and Upper Winifrede, Lower Winifrede seams.
Future surface mine reserve production at Logan is anticipated to focus on those seams having the best opportunity for sale into the metallurgical coal markets, namely the Lower Coalburg seam and below. In addition, from underground reserve production, the Powellton No. 1 Mine is projected to access and extract Upper Powellton seam, and through outcrop access. Lower Powellton seam extraction is projected in an area not overmined by the Upper Powellton. The Eagle No. 1 and Muddy Bridge Mines are projected to extract the No. 2 Gas seam. The Lower War Eagle mine is projected to extract the Lower War Eagle seam.
Deposits
The coal produced at Logan Mine complex is typically high-volatile (typically 28 percent or greater volatile matter content) bituminous coal. Quality varies with distance from the cropline, so some seams will be shipped into both the thermal and metallurgical markets depending on mining method and ultimate quality. Saleable product from the surface operations is projected to be sold primarily into the metallurgical coal market; however, some production is planned to be sold into the thermal coal market due to quality limitations. Underground coal is sold almost exclusively into the metallurgical markets.