HIGH-CALCIUM LIMESTONE

Pennsy Supply is one of the few producers of high-calcium limestone, also known as calcium carbonate, in the mid-Atlantic region. Pennsy recently invested in a new grinding mill system as well as an upgrade to the stone plant at its Hummelstown quarry to produce high-quality calcium carbonate from 87 to 97 percent, but primarily produces grades in the low-to-mid 90s.

High-calcium limestone serves a wide variety of products and industries, including:

  • Asphalt roofing industry
  • Industrial fillers market
  • Power utility market
  • Animal feed market
  • Processed foods such as cookies, crackers and cereal
  • Pharmaceutical products such as aspirin, antacids and toothpaste
  • And much more