Company profile Corporate Management

Chairman, board member since 2017, term expires 2027, nationality: German

Prof. Dr. Uwe Hack, born in 1962, is a graduate in business administration. After graduation and teaching at Manchester Business School, he began his professional career with Deutsche Bank in Frankfurt in 1992. After several positions in Deutsche Bank’s investment banking, he joined the management of Deutsche Bank Region Southwest in 1999, where he was responsible for the corporate finance department. From 2001 to 2005 he was CFO of schlott group AG and joined Grenke Group in 2005. There he was the Group’s CFO and from 2009 CEO of Grenke Bank AG. Since 2012 he has been Professor for International Finance and Accounting at Furtwangen University and Vice Dean of the Faculty of Economics. In addition to his teaching activities at the university, he is involved in technology-based business models and is active as an expert consultant for VC companies.

Prof. Dr. Uwe Hack is a member of the following statutory supervisory boards and comparable national and international corporate supervisory bodies:

• Supervisory board member, abcfinance GmbH, Cologne
• Supervisory board member, abcbank GmbH, Cologne
• LAWO AG, Rastatt (Chairman)
• LAWO Holding AG, Rastatt (Chairman)

Vice chairman, board member since 2014, term expires 2027, nationality: German

Professor Dr-Ing. Wilhelm Jaroni, born in 1951, completed his training as a draftsman before studying nuclear engineering in Essen and mechanical engineering/energy technology at RWTH Aachen University. After obtaining his doctorate and various activities at universities, research institutions and in industry, he joined Thyssen Group as plant manager at Thyssen Industrie AG. After a change to the business segment joining technologies of Thyssen Stahl AG in 1992, he served as Managing Director of ThyssenKrupp Joining Technology AG, Duisburg, from 1996 and as member of the Executive Board of ThyssenKrupp Stahl AG from 2002. From 2009 until his retirement in 2012, he was responsible for production, subsidiaries and R & D at ThyssenKrupp Steel Europe. He is a member of the Academy of Sciences and Honorary Professor at the TU Dresden since 2011.

Professor Dr-Ing. Wilhelm Jaroni does not hold any positions in any other statutory supervisory boards or comparable national and international corporate supervisory bodies.

Employee representative, board member since 2012, term expires 2025, nationality: German

Ms Elena Günzler, born in 1964, studied mathematics at Lomonosov Moscow State University. Ms Günzler worked for the Academy of Sciences of the German Democratic Republic from 1989 to 1991. From 1991 to 2010 she was employed at PSI subsidiary GSI mbH (from 2008, PSI Production GmbH), and in 2011 became an employee of PSI Automotive & Industry GmbH (formerly PSIPENTA Software Systems GmbH). Her main areas of responsibility include programming, implementation, consulting, training and project management for projects involving the use of sequencing and controlling as well as technical coordination in the area of Manufacturing Execution Systems.

Employee representative, board member since 2015, term expires 2025, nationality: German

Mr Uwe Seidel, born in 1966, studied chemistry in Duisburg. From 1993 to 1997 he worked for the Faculty of Chemistry at the University of Duisburg-Essen. From 1997 to 1999 he was employed at Shimadzu Europa GmbH as developer in the software design department. From 1999 until 2000, when the unit was acquired by PSI AG, he worked as developer and technical project manager at debis Systemhaus. His main areas of responsibility include programming, consulting and training in the areas software integration, PSIcomcentre and gas network simulation.

Board member since 2024, term expires 2027, nationality: German

Dr. Patrick Wittenberg, born in 1981, studied and completed his doctorate at the Faculty of Electrical Engineering and Information Technology at RWTH Aachen University. In 2012, he began his work as a Technical Center Metering Consultant at RWE Rhein-Ruhr Netzservice and then held various expert and management positions for around 6 years at Westnetz GmbH, RWE AG and innogy SE for around six years. From 2018, he was Managing Director of wesernetz Bremen GmbH before returning to Westnetz GmbH in autumn of 2021 as Managing Director for Special Technology and Digitalization to Westnetz GmbH. Since June 1, 2024, he has been Chief Technology Officer and Chairman of the Management Board of E.DIS AG.

Dr. Wittenberg is a member of the following statutory supervisory boards and comparable national and international corporate supervisory bodies:

• Stadtwerke Barth GmbH, Barth (Vice Chairman)
• Stadtwerke Ribnitz-Damgarten GmbH, Ribnitz-Damgarten (Vice Chairman)
• Stadtwerke Energie und Wasser Potsdam GmbH, Potsdam
• Stadtwerke Brandenburg an der Havel GmbH, Brandenburg an der Havel
• Netzgesellschaft Schwerin mbH, Schwerin (Vice Chairman)
• SWS Energie GmbH, Stralsund (Vice Chairman)
• Stadtwerke Wismar GmbH, Wismar (Vice Chairman)