Company Profile
Specialty Granules LLC
Company Overview
With over 90 years of superior service, Specialty Granules (“SGI”) is a leading aggregates and mining company supplying specialized products to the North American building materials industry. Headquartered in Hagerstown, Maryland, SGI has four production plants strategically located nation-wide. SGI maintains a commitment to service based on an in-depth understanding of customers’ needs and an ability to translate that knowledge into innovative products.