Dragon produces one of the finest quality aggregates available in the state of Maine at our Thomaston facility, meeting all ASTM C-33 specifications governing quality aggregates. In addition, our stone conforms to the most stringent requirements of ASTM C-227, "Potential Reactivity Test of Cement-Aggregate Combinations," in preventing ASR (alkali-silica reactivity), a must in the production of quality concrete. While Dragon specializes in concrete aggregate production, we have the ability to accommodate most specialty orders.