Karl-Heinz Petzinka
…2004, Petzinka took over as chairman of the management of the real estate company THS Wohnen with headquarters in the converted Zeche Nordstern in Gelsenkirchen. Petzinka left the company in November 2011. In 2007, Petzina was appointed as one of four program directors of the Ruhr.2010 project for the Ruhr being…