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.

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.

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.

Established in 1934, the East Fairfield Coal Co. (EFCC) began in East Fairfield, Ohio and is now located in North Lima, Ohio. The company mines and sells several different minerals including coal, limestone and clay.

Allegheny Mineral is western Pennsylvania’s largest limestone construction aggregate, calcium carbonate-based industrial mineral filler, and aglime producer. Founded in 1941, Allegheny Mineral remains a third-generation, privately owned, family-operated business with strong community roots and a focus on environmentally responsible aggregate mining. With 6 strategic locations employing 200 individuals, Allegheny Mineral enjoys a strong presence in Pennsylvania, Ohio, and West Virginia. We recognize the value of strong customer support and relationships and are proud to live in the communities in which we work. And, we’re pleased to say our familiarity with the surrounding community enhances our ability to give customers the attention and resources they need to complete successful projects.

Amerikohl Minining Inc. is a mining & metals company based out of United States.

Filtech Inc. based in Western Pennsylvania, provides a complete line of filtration equipment and replacement filter elements. Our filtration applications include air, compressed air, dust collection, gas, hydraulic and liquid filtration. We are dedicated to providing excellent consulting and engineering solutions to assist with difficult applications. Filtech also specializes in servicing, testing, and providing certifications for hoods, cleanrooms, and containment systems. For over 50 years, Filtech has proudly support Western Pennsylvania, Ohio, West Virginia, and Maryland areas with all their filtration and testing needs.

H&K Group, Inc. (H&K) is a family of vertically integrated companies serving the heavy civil contracting and construction materials sectors with over 80 operations throughout eastern Pennsylvania, New Jersey and Delaware. We provide: heavy civil construction services – site & land development, transportation & structures, water & wastewater, design-build & value engineering, demolition, emergency response, construction materials – crushed stone, sand & gravel, asphalt, ready-mix and precast concrete and high quality building materials – manufactured concrete block, biosoils, landscape materials and more. While embracing the legacy of “H&K” as our founders envisioned it, our new generation of family leadership is committed to refining our corporate goals and focusing intently on the future. With contemporary vision, strategy and a keen eye on technology and innovation, we continue to pioneer new processes and set new industry standards that consistently exceed our client’s most demanding project expectations. Here at H&K, we live and work by a value system that places accountability, quality and integrity above all business practices and principals. In so doing, we have built a company culture that creates exceptional products and services while remaining socially responsible, ethical and fair in all that we do. By operating in this manner we have created a code of trust in our customers, clients, employees, and the communities in which we operate that is unrivaled in our industry. Though large in capability, strength, experience and value, we are unique in our ability to remain hands-on, engaged and local in the way we conduct business at H&K. This, we believe, is the H&K difference. We welcome the opportunity to provide our credentials, qualifications, and project experience to you.

The Rosemont Project is an open-pit copper/molybdenum/silver porphyry/skarn deposit located in Arizona. It is expected to be one of the largest copper producers in the United States, accounting for approximately 10% of total U.S. copper production. In July 2014, Hudbay Minerals acquired Rosemont Copper Company. Since that time, much work has been completed at Rosemont including exploration drilling, production of an NI43-101 technical report, engineering on the plant and open pit for the Project and environmental permitting.