SMS group has developed its own primary smelting technology, the so-called BlueSmelter. The BlueSmelter is an innovative bath smelting technology, which processes primary raw materials for nonferrous metals production, such as copper concentrate and other ores to produce zinc, lead, tin, and other metals. The BlueSmelter was designed to process a wide range of copper and precious metals containing secondary raw materials, with a focus on low qualities and high organic content but with significant monetary value.