Mason, OH 45040
KOST USA is a manufacturer and supplier of Diesel Exhaust Fluid and a full line of Antifreeze products under the DefendAL name. With our state of the art full service lab we can analyze your sample and make a recommendation for your vehicle. KOST USA is currently constructing an 115,000 sq ft. facility which will improve our bottling and private label ability. The new facility will contain 7 blenders ranging from 20,000 to 30,000 gallons and daily output of 150,000 plus gallons.