THE STEPHAN SCHMIDT GROUP IS ONE OF THE WORLD'S LEADING MANUFACTURERS OF SPECIAL CLAY AND ADVANCED CLAY MINERALS. 20 pits, including 16 in Westerwald, Germany. Sales of circa 1.6 million tonnes/year. Large raw material reserves. Nine homogenisation plants. Covered storage area > 100, 000 t. Three grinding and processing plants with capacity of 350, 000 tonnes/year. One constituent granule production plant with capacity of 20, 000 tonnes/year. Three laboratories for research and development, quality control and customer services. The planned, extensive use of large clay deposits through regulated mining and strict production control in accordance with ISO 9001 has made the Stephan Schmidt Group one of the largest producers of ceramic and refractory raw materials and raw materials for fillers/additives, special construction materials and the green market.