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).

Genesis Energy, L.P. (NYSE: GEL) is a publicly traded diversified midstream energy master limited partnership headquartered in Houston, Texas. As a flexible and responsive supply and logistics company, our custom solutions allow us to move product to market in the most efficient and cost-effective manner, while maintaining our strong cultural focus on safety and reliability. Through our four divisions: offshore pipeline transportation, chemicals, onshore facilities and transportation and marine transportation, we provide an integrated suite of services to integrated oil companies, large independent oil and gas or refinery companies and large industrial and commercial enterprises. We are primarily located in Texas, Louisiana, Arkansas, Mississippi, Alabama, Florida, Wyoming and the Gulf of Mexico.

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.

Magris Talc is the leading fully integrated North American Talc producer with a 100+ year operating history. Our products are used globally by leading, blue-chip organizations, to enhance performance in a variety of industrial applications in key markets including polymers, paints & coatings, pharmaceutical, building products and more. Leading Supplier of Critical Inputs: We are the leading supplier of talc products in North America. Our products increase performance, reduce weight, control emissions and displace harmful chemicals in a variety of industries including automotive, building products, agriculture, pharmaceutical and more. Continuous Innovation: We understand the complex demands of customers. Our research & development experts help develop solutions by designing new products, technologies & processes. Health, Safety & Environmental: Safety is our most important value, and we believe that everyone should go home safe & healthy everyday. At Magris Talc, we utilize best in class safety management programs which help us to target continuous improvement in our safety performance & culture. Approach to Sustainability: We define the performance of our organization based on a strong health & safety leadership & culture, and on industry-best environmental practices. We also prioritize building and maintaining relationships with the communities that are critical to sustain our mission. We operate responsibly, respecting our employees, communities, and the environment. Across our operations, we ensure that we enhance everyday lives, and communities at large, to create a lower carbon world. We continuously invest in technologies that reduce our overall footprint, and in communities that help sustain our mission. Community: Magris’s core values are rooted in the relationships we strive to build with our communities. We define these communities to include our employees, contractors, suppliers, local communities, & others who may be impacted by our activities

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

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.

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.