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| Knife River Corporation Produces and markets aggregates and construction materials in Alaska, Oregon and Hawaii, California and operates lignite coal mines in Montana and North Dakota. | |
| Chisholm Coal Company Wholly-owned subsidiary of Stelco, located in Kentucky. | ||
| Coal Trading Association (CTA) Develops and maintains industry standards for coal trading activity. | ||
| World Coal Institute A subsidiary of Black Hills Corporation engaged in mining and processing sub-bituminous coal in Wyoming. | ||
| The Coal Association of Canada A subsidiary of Black Hills Corporation engaged in mining and processing sub-bituminous coal in Wyoming. | ||
| Wyodak Resources Development Corporation A subsidiary of Black Hills Corporation engaged in mining and processing sub-bituminous coal in Wyoming. | ||
| arkoenergy.com B2B coal and coke trading portal, offering real-time and secured B2B exchange. | ||
| Coke of Coal Trading Directory EC Plaza's trading directory and business information site for coke, semi-coke and lignite from coal. | ||
| Coal Fuels Trading Directory EC Plaza's trading directory and business information site for coal briquettes, ovoids and similar solid fuels. | ||
| BPI Industries, Inc. Markets Anthracite in the United States. | ||
| Lorencito Coal Company Coal producer based in Colorado. | ||
| Resource Enterprises Royal Dutch/Shell's bitumen and coal division. | ||
| Port Waratah Coal Services (PWCS) Operates export coal handling operations at the port of Newcastle, New South Wales, Australia. | ||
| Gemco Valve: Coal valve Manufacturer of valves, airlocks, diverter Valves and retractable sleeves for solids processing industries. | ||
| Quaker Coal Company, Inc. Kentucky-based coal producer with surface and underground production in Eastern Kentucky, West Virginia, Ohio and Colorado. | ||
| Centralia Coal Sales Company Markets Anthracite in the United States. | ||
| BETWS Anthracite Producer and processor of anthracite products, including filter media and dried-graded anthracite. | ||
| Yanzhou Coal Mining Company Yanzhou Coal Mining Company Limited is engaged in underground mining, preparation and sales of coal. | ||
| PBS Coals Inc. Pennsylvania-based coal producer. | ||
| BNI Coal A wholly owned subsidiary of Minnesota Power, owns and operates the Center Mine near Center, N.D. | ||
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