1. United States Mineral Products Co 83 Main St, Stanhope, NJ 07874 Coordinate: 40.90374,-74.70844 Phone: (973) 347-1875
2. Isolatek International 41 Furnace St, Stanhope, NJ 07874 Coordinate: 40.90006,-74.71267 Phone: (973) 347-1200