Theodor Stephan KG was established by Theodor Stephan Sr. in 1902 in Essen. It was involved in the operation of sand quarries for foundry applications, the processing of blast furnace slag for road construction, and the trading of mineral products for the construction industry. In 1979, we acquired the "Augusta" deposit in Oberbrechen/Taunus, where raw china clay is extracted for use in non-ceramic products. Today, the company is run by the third and fourth generation by Iris Loh-Stephan and Arndt Nikolaus Loh. Our aim is to expand the mines and to alter our portfolio of raw materials and processing options to meet our customers' needs. In this process, we only and exclusively work in accordance with legal requirements and safety regulations, serving both the environment and our employees. We are certified to ISO EN 9001: 2015 and are participants in the ÖKOPROFIT project of the state of North Rhine-Westphalia.
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