SGI

  • From the Roof, to the Road, to the Dinner Table, Our Rocks Improve Lives.

    Headquartered in Hagerstown, MD, SGI is a leading mining and mineral processing company specializing in the development of roofing products, building materials, and soil amendments for agriculture.

    Products   About Us

 

  • 100

    years developing innovative solutions that solve problems

  • 600+

    employees nationwide

  • 16

    academic studies investigating the ability of SGI minerals to capture CO2

  • 2.1M+

    North American homes protected annually with asphalt roofing shingles using SGI granules

  • 22

    safety and environmental excellence awards earned

Over 90 Years Of Superior Service

Our Products

Our evolving product lines consistently exceed customer expectations and are made possible by the breakthroughs of scientists and technical specialists who merge industry best practices with innovative thought and sustainable leading-edge technologies.

Improving Lives With High-Quality Materials.

Our innovative thought and leading-edge technologies support the development of roofing products that protect homes; building materials that make roads and construction projects sound; and agricultural products that promote healthy soils.

Learn More