Flat Rock Bagging has formed partnerships with a number of manufacturers across the United States. These companies were specifically chosen for their high quality, environmentally-friendly products  - many which are manufactured from recycled materials.

  • Harsco Minerals
    Harsco Minerals is the United States largest manufacturer of slag abrasives sold under the well-known BLACK BEAUTY® coal slag product name.  Flat Rock Bagging is pleased to be an exclusive distributor of BLACK BEAUTY® products for the Midwest.
  • Morton Salt Inc.
    For more than 160 years, Morton Salt has served as a symbol of excellence and a trusted authority on salt. Today, Morton Salt, Inc. remains a leading salt producer in North America.
  • Compost Soil Technologies
    Compost Soil Technologies is one of Michigan’s leading producers of composts, soils, and recycled wood products.  CST compost soils are packaged under the SPURT™ logo and distributed exclusively through Flat Rock Bagging.
  • U.S. Silica Company
    As one of North America’s leading producer of industrial sands, U. S. Silica Company represents more than a century of mining and processing expertise.  We carry many high quality commercial sands and aggregates produced by U.S. Silica.