Coastal Treated Products Company Subsidiary of Coastal Forest Resources Company Sister companies include Coastal Plywood Comp ... any, Coastal Forest Products, LLC, Coastal Timberland Co. Operating four treating plants in Weldon, NC, Oxford, PA, Belington, WV and Havana, FL Offering preservative treated lumber/plywood/timbers and fire retardant treated lumber/plywood/timbers throughout the eastern U.S. read more