About Us

Calumite Company, LLC, a member of the Levy Group of Companies, manufactures and sells Calumite Slag – an essential, slag-based raw material that is utilized in the manufacture of container and float glass. Slag, a co-product of the steelmaking process, offers an environmentally friendly resource for the glassmaking industry that improves furnace efficiencies, reduces energy costs, and improves quality in both types of glass.

In addition to Calumite Slag , the company also sells Melite-40, an iron aluminum silicate used as a source of iron in amber glass. The company also distributes Gypsum (calcium sulfate), Iron Pyrites, and Iron Chromite to the glass-making industry.