Flat Rock Bagging has formed partnerships with a number of manufacturers across the United States. These companies were specifically chosen for the high quality, environmentally-friendly products they produce - 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.
  
  
• Putt Inc/Michigan Bark
  For over 20 years, Putt, Inc has been dedicated to providing quality service in the waste wood disposal and recycling business. Flat Rock Bagging is proud to be a distributor of Michigan Bark's high quality Nature's Mate premium bagged mulches products.
  
  
• Compost Soil Technologies
  Compost Soil Technologies is one of Michigan's leading producers of compost, 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.