Larpen Metallurgical Service is the leading supplier of graphite products and carbon additives throughout North America. Larpen is annually selling over 75,000 tons per year of our graphite and carbon additives to the foundry and steel industry. With our growing line of GRAPH-HEX products we provide a reliable product that produces excellent results. LMS also supplies low sulfur petroleum cokes, silicon carbide, and other related materials. Larpens GRAPH-HEX products are available worldwide through any of our convenient locations and are currently being sold in over twenty countries. As an ISO 9001:2015 certified company, we continually work to provide consistent and quality products to meet our customers needs.