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

The coal deposits on the Property are Carboniferous in age, being of the Pennsylvanian system. Seams and zones of economic significance typically range between 24 and 48 inches in thickness, with relatively little structural deformation. Regional structure is typically characterized by gently dipping strata to the northwest at 1.0 to 4.0 percent, averaging 3.0 percent.

Strata on the Property are of the Pennsylvanian-age New River and Pocahontas Formations of the Pottsville Series. The rock formations between the coal seams are characterized by large proportions of sandstone interspersed with shale units.

Seams mined or with remaining reserve or resource potential include, in stratigraphically ascending order the: Pocahontas 3, and 6 (in the Pocahontas Formation); and the Beckley and Sewell (in the New River Formation).

Mineralization
The generalized stratigraphic columnar section demonstrates the vertical relationship of the principal coal seams and rock formations on the Property.

Deposits
The coal produced at the Kepler complex is mainly a low-volatile, typically under 21 percent volatile matter bituminous coal. Some coal exhibits localized higher volatile zones of approximately 23 percent.

Due to the high value of these low-volatile coking coals, all of the seams have been extensively m ........

Eight underground mining areas were modeled and tested economically. Once the Resources were calculated, mine plans were created to project operating each resource area to depletion, with crews and equipment scheduled to move to subsequent mining areas as depletion occurs. Underground mine operations are projected to be exhausted in 2061. Individual mines lives range from 2 years to 23 years.

The Kepler Mining Complex currently operates one underground mine with a total of four (4) operating sections. All four continuous mining units operate at the Roadfork 52 Mine in the Pocahontas No. 3 Seam.

Each proposed Kepler mine is scheduled to operate one or two production sections with the Road Fork 52 mine operating four production sections. All sections are configured with dual continuous miners on each production section. The smaller single unit mines will operate in a walking super section configuration where only one continuous miner is operational at a given time. The Sewell West and P3 North Mines will operate as super section operations where both continuous miners are operational on a production section at a given time.

Road Fork 52
Road Fork 52 started production with a single mining unit in early 2020. Two additional mining units were added during calendar year 2020 from the Road Fork 51 operation. The fourth mining unit was added during the calendar year 2022. Access to the Pocahontas No. 3 Seam is gained by a newly constructed decl ........

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