Malad City Companies

Hess Perlite began mining and expansion operations back in 1965 doing business as Idaho Minerals. Expansion was initially done in a small facility next to the mine. A larger facility was later built in nearby Malad City where they had access to a rail spur. The perlite expansion facilities were later…

Hess Pumice Products is a mining & processing operation specializing in the extraction and refining of the world’s purest commercial deposit of white pumice. In continual operation since 1958, we’re the largest producer of processed pumice on the planet.  Pumice Products for Industry:…