CONSOL Energy Inc. (NYSE: CEIX) is a Canonsburg-based producer and exporter of high-Btu bituminous thermal and crossover metallurgical coal. It owns and operates some of the most productive longwall mining operations in the Northern Appalachian Basin. Our flagship operation is the Pennsylvania Mining Complex, which has the capacity to produce approximately 28.5 million tons of coal per year and is comprised of 3 large-scale underground mines: Bailey, Enlow Fork, and Harvey. The company also owns and operates the CONSOL Marine Terminal, which is located in the port of Baltimore and has a throughput capacity of approximately 15 million tons per year. In addition to the ~767 million reserve tons associated with the Pennsylvania Mining Complex, the company also controls approximately 1.6 billion tons of greenfield thermal and metallurgical coal reserves located in the major coal-producing basins of the eastern United States.

American Consolidated Natural Resources and its subsidiary companies employ and manage nearly 4,000 employees and currently manages 7 active coal mines. American Consolidated Natural Resources operates 9 underground longwall mining systems and 25 continuous mining units. We operate 10 coal transloading facilities and 5 mining and equipment factory and fabrication facilities. American Consolidated Natural Resources will manage the productions of over 49 million tons of coal per year. American Consolidated Natural Resources manages and controls over 4 billion tons of coal reserves. Our coal reserves total more than 6 billion tons of high heat, high quality coal in close proximity to our customers. Most importantly, American Consolidated Natural Resources operates among the safest underground coal mines in the world. This production and reserve base allows American Consolidated Natural Resources to provide electric utility customers with low cost, reliable, and high-quality coal supplies. ACNR is providing a bright future for you and your family by securing long-term employment opportunities throughout our mining operations.

Covia is a leading provider of minerals and material solutions for the Industrial and Energy markets. We offer customers a broad array of high-quality products, distinctive technical capabilities and the industry’s most comprehensive and accessible distribution network. We have a strong legacy built on a spirit of partnership – with each other, our customers and our communities – because we believe it creates the best ideas, products and outcomes. Partnership attracts great people and helps them excel while fueling innovation and prosperity for all our stakeholders. Our scale and capabilities complement our extensive product portfolio, serving the diverse and complex needs of our customers in the foundry, building products, ceramics, coatings and polymers, water filtration, glass, and sports and recreation markets. Our solutions serve the diverse and complex needs of customers in the oil and gas market. Covia’s market-driven insights and value-added offerings, including an unparalleled selection of proppants to enhance well productivity, allow us to address all well environments and to solve a range of down-hole challenges faced by our customers. Our ability to deliver the right product, to the right place, at the right time, is unmatched. Just as strong is our commitment to building partnerships that help our customers succeed.

Rosebud Mining is a mining & metals company based out of 192 Theater Rd, Kittanning, Pennsylvania, United States.

Founded in 1860, Carmeuse is a global manufacturer of lime, limestone and mineral-based products used in a variety of industrial, construction, soil improvement applications, and benefits the environment by providing cleaner air and safer water. Carmeuse and its subsidiaries also offer equipment and services to optimize our customers’ processes, improve safety, and provide reliable supply. With headquarters located in Louvain-la-Neuve (Belgium), the Carmeuse Group has approximately 5,300 employees and serves over 13,000 customers annually through a global network of 90 plants and 60 limestone quarries. Turnover in 2022 was €1.8 billion.

NORTHSHORE MINING COMPANY is a mining & metals company based out of 200 PUBLIC SQ, Cleveland, Ohio, United States.

Cleveland-Cliffs is the largest flat-rolled steel producer in North America. Founded in 1847 as a mine operator, Cliffs also is the largest manufacturer of iron ore pellets in North America. The Company is vertically integrated from mined raw materials, direct reduced iron, and ferrous scrap to primary steelmaking and downstream finishing, stamping, tooling, and tubing. We are the largest supplier of steel to the automotive industry in North America and serve a diverse range of other markets due to our comprehensive offering of flat-rolled steel products. Headquartered in Cleveland, Ohio, Cleveland-Cliffs employs approximately 27,000 people across its operations in the United States and Canada.

Borroughs is a leader in the designing and manufacturing of storage systems. Borroughs designs and manufactures systems for industrial applications, automotive service & parts centers, warehouses and distribution/fulfillment centers, libraries, and beyond. We help our customers achieve their goals in terms of efficiency, productivity, security and cost. Our project management capabilities are second to none, and we have a dedicated team of Technical Support associates that will make sure every detail is covered.

Robindale Energy & Associated Companies is a major Pennsylvania-based employer, providing good-paying jobs for more than 500 employees and contractors. The company annually contributes in excess of $100 million in economic impact to the state’s economy. Its work in restoring abandoned waste coal sites and cleaning up waterways is priceless to the environment and has saved taxpayers millions of dollars in clean up efforts that would have otherwise had to be paid for with tax dollars. Waste coal reclaimed by Robindale Energy & Associated Companies helps fuel three Pennsylvania-based generating plants, with hundreds more employees working at those plants. Robindale Energy & Associated Companies is a major supporter of charitable activities in the community it serves and annually contributes to worthwhile endeavors and activities. Contributions from Robindale Energy & Associated Companies have helped fund park improvements and clean-ups. Over the past decade, Robindale Energy & Associated Companies has donated to local charities and provided matching funds to meet goals set by the company’s leadership.

We’ve stood for quality, service, and value for over 100 years. The National Lime and Stone Company is a privately held, family-centered company made strong by over a century of continuous operation. That’s why we're preferred by customers and are one of the largest and most trusted sources of crushed stone, sand and gravel, and mineral products in the country. In addition to supplying products that support our nation’s infrastructure and basic industries, we produce significant quantities of specialty dolomite and calcium-based minerals for the glass and steel industries — and we're the largest supplier of dolomitic float glass stone in the nation. While we're proud to offer some of the highest quality limestone products in the region, our greatest resource is our employees. National employees are limestone experts and, for decades, have been some of the most knowledgeable professionals in the aggregates and minerals industries. We strive to provide outstanding customer service and the technical support to ensure that our top-notch products are delivered when and where they're needed. National is a 100% American company, founded on fair business and sound environmental practices. We strive to exceed our customers’ expectations in every way by delivering innovative, high-quality products at competitive prices.

Cleveland-Cliffs is the largest flat-rolled steel producer in North America. Founded in 1847 as a mine operator, Cliffs also is the largest manufacturer of iron ore pellets in North America. The Company is vertically integrated from mined raw materials, direct reduced iron, and ferrous scrap to primary steelmaking and downstream finishing, stamping, tooling, and tubing. We are the largest supplier of steel to the automotive industry in North America and serve a diverse range of other markets due to our comprehensive offering of flat-rolled steel products. Headquartered in Cleveland, Ohio, Cleveland-Cliffs employs approximately 27,000 people across its operations in the United States and Canada.

Thompson Creek Metals Company Inc. was a North American mining company. (copper, gold and molybdenum.) Thompson Creek Metals Company are now owned by Centerra Gold Inc.