BARTON International delivers the highest performance industrial garnet and mineral abrasives in the world. We offer blasting and waterjet abrasives that solve any challenge in waterjet cutting, surface preparation, grinding and polishing. Specifically developed for waterjet cutting, BARTON waterjet abrasives are as effective on thick steel or titanium as they are on composites, laminates, printed circuit boards, fiber-optic cables and other fragile materials. Our Mil-Spec and CARB-approved garnet blasting abrasives come in a variety of grades that perform across a range of applications, from pack rust on bridges and ship hulls to mill scale on new steel and projects with less-demanding profile requirements. Operators enjoy maximum productivity and low dusting for superior safety. Our four-tier abrasive product line offers different levels of value and performance: ADIRONDACK® Mined and milled in the USA, our world-renowned ADIRONDACK garnet is the most refined hard rock garnet abrasive in the world. Its ever-sharp crystalline structure makes it the fastest, cleanest, most precise blasting and waterjet cutting abrasive available. ALLTEK™ This globally sourced alluvial garnet abrasive combines superior blasting and waterjet cutting performance with economy. It’s perfect for jobs that don’t require the ultra-high performance of our ADIRONDACK garnet. FUSION® The newest product in our line of abrasives, FUSION is a custom blend of ALLTEK alluvial garnet and ECOTEK staurolite for a general-purpose abrasive that balances cutting consistency with cost. ECOTEK® STL This domestically produced waterjet cutting abrasive provides solid cutting performance for customers focused on material costs. Customers can get genuine OEM and OEM style waterjet parts and accessories shopping online marketplace at store.barton.com. For over 140 years, our family-owned company continues a legacy built on innovative solutions and the most knowledgeable teams in the industry.

S.M. Lorusso & Sons, Inc. is a building materials company based out of 331 WEST ST, Walpole, Massachusetts, United States.

The Reading Anthracite Company is a leading anthracite coal mining company and active supporter and innovator of alternative energy solutions. Regional and Domestic - Anthracite coal is a core energy, carbon and media solution to regional and national manufacturing industries, waste treatment & water filtration plants, and heating solutions for residential, commercial and institutional needs. The Reading Anthracite Company fuels the regional economy by providing hundreds of jobs directly and indirectly. Electricity and coal produced in Schuylkill County, Pennsylvania is Schuylkill County's single largest export and this energy industry represents the backbone of this region's rail infrastructure. Schuylkill County's power generation plants provide power annually to every home in this county and most of Berks County. This power is provided to over 400,000 people and over 165,000 homes. As a member of the Rich Family of Companies, the Reading Anthracite Company is a contributor to our national energy solutions, and is actively encouraging alternative energy projects, including wind, coal to liquids and biomass. Foreign & Overseas - The Reading Anthracite Company is an energy and media solutions partner to industries and municipalities around the world. From Europe to Asia, from the Canadian Provinces to the Caribbean/Latin American Basin and Southern Hemisphere, anthracite mined and delivered by the Reading Anthracite Company can meet the specification and volume for energy, carbon, and media supply for industrial scale use. With a convenient proximity to the major rail and seaport hubs, Reading Anthracite offers timely and efficient delivery capabilities.

T. L. EDWARDS, INC is a mining & metals company based out of 100 WALES AVE, Avon, Massachusetts, United States.

Established in 1986, AMCI Group (“AMCI”) is a privately held group that invests in and operates industrial businesses focused on natural resources, transportation, infrastructure, metals and energy. AMCI has invested over $1.7 billion in 40 industrial companies and has a current portfolio consisting of 21 companies located around the world with approximately 8,000 employees, over $6 billion in annual revenue and over $2 billion in annual EBITDA. AMCI is also the sponsor of two special purpose acquisition vehicles, AMCI Acquisition Corp and AMCI Acquisition Corp II. AMCI Acquisition Corp successfully completed its business combination with Advent Technologies on February 4, 2021. AMCI Acquisition Corp II priced its IPO on August 3, 2021 and is currently searching for a target.

Tresca Brothers Concrete, Sand, and Gravel Inc. is a family-owned and operated ready-mix concrete supplier that has been serving the greater Boston area for over 100 years. Tresca Brothers Concrete excels in supplying the highest quality ready-mix concrete, sand, and gravel to their customers. Tresca Brothers Sand And Gravel Inc. can be reached at PO BOX 189, Millis, Massachusetts, United States.

Agate focuses on challenging projects that involve groundwater control, structures in the tidal zone and marine elements. Agate has successfully completed more than 400 projects throughout New Jersey, Pennsylvania, Delaware and New York.

Martin Stone Quarries, Inc. is a family owned and operated business since 1953. We mine granite gneiss stone in Bechtelsville, Pa. Martin Stone Quarries also produces Martin Infield Mix, which is used on baseball and softball fields throughout the Mid Atlantic Region. We are so proud of our Martin Infield Mix, we put our name on it.

Benevento Companies is a fourth generation, family-owned and operated construction materials supplier. We operate an integrated aggregate, asphalt, ready mix concrete, and recycling business with locations in Wilmington and Georgetown, MA as well as Plaistow, Pembroke, and Loudon, NH. Benevento Companies was founded on a simple fundamental: an enduring commitment to customer service. Our experienced and talented team ensure we remain the most “easy-to-do-business with” company in our industry.

E. Tetz & Sons Inc. is a construction company based out of 63 Cemetery Rd, Middletown, NY, United States.

Rock of Ages, the country’s preeminent quarrier, manufacturer and distributor of high-quality, exquisitely designed memorials, has constantly evolved its memorial products to meet the needs, expectations and circumstances of its customers. Whether it has been listening and responding to the needs of individual families in remembering their loved ones, or listening and responding to the needs of American communities and institutions in honoring heroes or celebrating the life and times of our great nation, Rock of Ages has been the innovative leader in the memorialization industry for 125 years.

The only family owned and operated quarry in Lancaster County, PA. We have been mining limestone since 1937. The third generation of family continues to provide Lancaster and other surrounding counties with crushed stone, ready-mix concrete, and aglime.