AMCOL International Corporation is now Minerals Technologies Inc. Please see press release for more details http://bit.ly/1nhseyL New York-based Minerals Technologies Inc. is a resource- and technology-based growth company that develops, produces and markets worldwide a broad range of specialty mineral, mineral-based and synthetic mineral products and related systems and services. The company recorded sales of $1.02 billion in 2013. *********************************************************************************************************************************** Founded in 1927, AMCOL International Corporation is a leading producer and marketer of diverse specialty materials with a core expertise in minerals and polymer science. Through four business segments: Performance Materials, Construction Technologies, Energy Services, and Transportation and Logistics, AMCOL creates solutions that enhance the quality, efficiency and sustainability of our customers’ products and services in a growing global marketplace. Holding more than 375 worldwide patents, our focus on research and development empowers us to be industry leaders. Technical expertise coupled with unparalleled customer relationships, supported by more than 2,400 employees in over 26 countries makes us trusted partners in major end markets. Headquartered in Hoffman Estates, Illinois, AMCOL International Corporation is a publicly owned company traded under the symbol ACO (NYSE).

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.

Stone Quest was founded in 1998, with a vision to build a business where people can bring architectural stone projects to life. With our vast knowledge of materials and our buying power we were an overnight success, which now has emerged Stone Quest into an industry leader. We knew that we can provide people with quality materials and a high level of manufacturing for their projects needs. Serving New York, New Jersey and the Tri-state area for over 18 years, Stone Quest has gained a reputable reputation for reliable and honest service. Now we are recognized as one of the largest sources of Limestone and natural stone for Exterior and Interior projects. Catering to the architectural and design business Stone Quest recently opened up a New York showroom located at 48 West 22nd Street New York, NY 10010 in the heart of Chelsea for our clients to have another stomping ground to provide exceptional service for the A&D community and showcase some of our beautiful work. Stone Quest also has expanded their manufacturing facilities this year, with a new 75,000 sqft facility located at 271 Adelphia Road, Howell, NJ 07731 to provide more selection and fabrication services to our clients and get projects out faster and more proficient. Our passion for natural stone and service to our clients goes unprecedented in every project. The mission of StoneQuest is to provide excellent service and end to end buying for our clients. We are not only an importer of natural stone; we are also a manufacturer. Being a one-stop shop is what makes us truly unique. There is no need to do all the leg work of finding material and then getting a fabricator. We can provide shop drawing and precise measurements of every job.

Family Owned, New England Based, Paving Contractor and Construction Material Producer Massachusetts Locations: Dracut, Ipswich, Marlborough, Merrimac New Hampshire Locations: Amherst, Hooksett, Hudson, Keene, Rochester

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.

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.

Haynes Construction Company, celebrating over 60 years in business, is a second generation firm founded in 1962. HCC has been providing general contracting and construction management services for many repeat clients and establishing strong working relationships with new clients in both the private and public sectors. HCC subcontracts all trades while managing the entire project ourselves. We are well recognized for our work in the academic, institutional, residential, criminal justice, healthcare, infrastructure and retail markets. But most importantly is our commitment and history of building affordable housing for nonprofit groups with more than 7000 units completed. At Haynes Construction Company we extend our services throughout the entire state of Connecticut including Seymour, New Haven, Southbury, Middletown, Hartford, Farmington, Fairfield, Manchester, New London, Newtown, Hamden as well as cities throughout Litchfield, Tolland and Windham Counties.