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Aurubis AG is listed on the stock exchange and is the largest copper producer in Europe and the largest copper recycler worldwide.
Water Remediation Technology is a Arvada, CO-based company in the Agriculture and Mining sector.
Alpha Natural Resources is a large American producer of metallurgical and thermal coal. It also provides services relating to equipment repairs, road construction and logistics (terminals). It doesn't produce all of the coal it sells, some is purchased and resold. Alpha operates in Virginia, West Virginia, Kentucky, Wyoming, Utah, Illinois, Tennessee, and Pennsylvania.
Red River Coal Company is a Norton, VA-based company in the Agriculture and Mining sector.
Greig Filters Inc is a Lafayette, LA-based company in the Agriculture and Mining sector.