ProjectStölting Service Group GmbH erected a new multifunctional building on the premises of the former Graf Bismarck Mine in Gelsenkirchen. Besides the Stölting headquarters, having most of the space, the ground floor of the building houses restaurants which face the forecourt of the port and, in the upper floors, there are some flats. Extensive wall and ceiling smoothing and coating works of a total of about 20,000 sqm from November 2017 to May 2018: Floor coating and joint sealing works to the same extent.