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Westmoreland Coal Company is the oldest independent coal company in the United States. Westmoreland’s coal operations include sub-bituminous and lignite surface coal mining in the Western United States and Canada, an underground bituminous coal mine in Ohio, a char production facility, and a 50% interest in an activated carbon plant. Westmoreland also owns the general partner of and a majority interest in Westmoreland Resource Partners, LP, formerly Oxford Resource Partners, LP, a publicly-traded coal master limited partnership with six mining complexes. Its power operations include ownership of the two-unit ROVA coal-fired power plant in North Carolina.
Herkimer Diamond Mines Inc is a Herkimer, NY-based company in the Agriculture and Mining sector.
American Geotechnical is a Yorba Linda, CA-based company in the Agriculture and Mining sector.
Coad is a Athens, OH-based company in the Agriculture and Mining sector.
Tri State Cut Stone is a Frankfort, IL-based company in the Agriculture and Mining sector.