American Materials Company

U. S. Silica Company represents more than a century of mining and processing experience in industrial minerals. The company is a producer of grounded and ungrounded silica sand, kaolin clay, aplite and related industrial minerals. In 1987, Pennsylvania Glass Sand and Ottawa Silica Company merged, forming the present company. The union combined the marketing and production strength of two of North America s top silica companies. Headquartered in Berkeley Springs, W.Va., U. S. Silica Company is located along the East Coast and Midwest in cities such as Ottawa, Ill.

Martin Marietta Aggregates, based in Cayce, SC, is an American company and a leading supplier of aggregates and heavy building materials with operations spanning 28 states, Canada, the Bahamas, and the Caribbean islands. Dedicated teams at Martin Marietta supply the resources for the roads, sidewalks, and foundations on which communities thrive. With over 500 locations to serve customers, Martin Marietta offers a wide range of products including aggregates, cement, ready mixed concrete, and construction materials. Committed to sustainability and inclusion, the company values safety, environmental stewardship, employee well-being, and community welfare as core principles of its business agenda. Generated from the website

For over 40 years, Columbia Trucking has been a trusted name in the sand and gravel industry. We pride ourselves on delivering high-quality materials and exceptional service to meet all your construction and landscaping needs. Whether you're tackling a large-scale project or a small home improvement task, you can count on us for reliable, on-time deliveries and competitive pricing. Columbia Trucking – building the foundation for your success, one load at a time.