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U.S. Silica Holdings Inc. is a global performance materials company and is a member of the Russell 2000. The company is a leading producer of commercial silica used in the oil and gas industry and in a wide range of industrial applications. Over its 123-year history, U.S. Silica has developed core competencies in mining, processing, logistics and materials science that enable it to produce and cost-effectively deliver more than 600 diversified products to customers across our end markets. U.S. Silica`s wholly-owned subsidiaries include EP Minerals and SandBox Logistics™. EP Minerals is an industry leader in the production of products derived from diatomaceous earth, perlite, engineered clays and non-activated clays. SandBox Logistics™ is a state-of-the-art leader in proppant storage, handling and well-site delivery, and is dedicated to making proppant logistics cleaner, safer and more efficient. The company has 27 operating mines and processing facilities and two additional exploration stage properties across the United States and is headquartered in Katy, Texas.
Herco Inc is a Newcomerstown, OH-based company in the Agriculture and Mining sector.
Tri State Cut Stone is a Frankfort, IL-based company in the Agriculture and Mining sector.
Gatos Silver, Inc. is a U.S.-based precious metals production, development and exploration company with the objective of becoming a premier silver producer. We are currently focused on the production and continued development of the Cerro Los Gatos Mine and the further exploration and development of the Los Gatos District. The Cerro Los Gatos Mine, located within the Los Gatos District, Chihuahua, Mexico, consists of a 2,500 tpd polymetallic mine and processing facility that commenced production on September 1, 2019.
Minerals Technologies Inc. is a resource- and technology-based 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 has four reportable segments: Performance Materials, Specialty Minerals, Refractories and Energy Services. Our vision is to be the preeminent value-added minerals company globally with leadership positions in our key markets, product lines and regions. We are achieving this vision through our geographic expansion initiatives, robust new product development pipeline and acquisitions. While executing on our strategy, we are also focused on deepening our high-performance culture, strengthening our sustainability efforts and advancing closer to an injury-free workplace. It is our people, our culture of continuous improvement, our values and our customer-focus that make the difference for our business and have enabled our success. MTI is a dynamic team of more than 3,600 people with a clear understanding of our mission, vision, strategy and objectives. MTI`s core values – people, excellence, honesty, customer focus and accountability – guide our work. All of our employees uphold these values to make us a leading supplier of value-added mineral products and innovative solutions. We also recognize the importance of a diverse and inclusive workplace where all employees can contribute, thrive and advance. We have heightened our focus on diversity and inclusion through the creation of a dedicated Global Inclusion Council that will be responsible for determining the overall global diversity and inclusion strategy across MTI.