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Management and Supervisory Board

Herrenknecht AG's Board of Management and Supervisory Board introduce themselves

Dr.-Ing. E.h. Martin Herrenknecht

Chairman of the Board of Management

Martin Herrenknecht (born in 1942) is company founder and name giver, driving force and Chairman of the Board of Management of Herrenknecht AG. After completing his degree, the graduate engineer (FH) began his career as a design engineer in Switzerland. This was followed by several positions, some lasting several years, as project and design engineering manager in Canada and Germany. From 1971 to 1975, Martin Herrenknecht worked again in Switzerland as director of the mechanical engineering service at the Seelisberg Tunnel with "Big John", the world's largest tunnel boring machine at the time. In 1975 he founded the Martin Herrenknecht Engineering Service Company, then in 1977 the limited company Herrenknecht GmbH, whose Managing Director he remained until it became a stock joint company. Martin Herrenknecht is responsible for Group Strategy, Business Development, Group Marketing & Communications, Internal Audit and Mergers and Acquisitions. Martin Herrenknecht has received numerous prestigious awards and honors, including an honorary doctorate (Dr.-Ing. E.h.) from the Carolo-Wilhelmina Technical University of Braunschweig (Brunswick), the Order of Merit of the Federal Republic of Germany, entry into the Handelsblatt Hall of Fame of German Entrepreneurship, the Lifetime Achievement Award of the International Tunnelling and Underground Space Association (ITA) as well as the Werner von Siemens Ring for his outstanding lifetime achievement as an inventor and entrepreneur. Martin Herrenknecht is married and has three children.


Dipl.-Wirtsch.-Ing. Michael Sprang

Vice Chairman of the Board of Management and CFO

Since the beginning of 2017 Michael Sprang (born in 1978) has been Vice Chairman of the Board of Management of Herrenknecht AG and Chief Financial Officer (CFO) responsible for central Group units. Previously the graduate industrial engineer worked in various positions within the company Herrenknecht, including as CFO for the commercial management of the Group's Business Unit Traffic Tunnelling. Michael Sprang studied industrial engineering at the University of Karlsruhe and then majored in Finance at the University of Zurich. He began his professional career in 2005 at Siemens Management Consulting, part of Siemens AG. In 2010 he joined the Herrenknecht Group as assistant to the Chairman of the Board of Management, Dr.-Ing. E.h. Martin Herrenknecht. Michael Sprang lives with his family in Freiburg.


Betriebswirt (VWA) Kurt Stiefel

Member of the Board of Management

Kurt Stiefel (born in 1956) has been responsible as CFO for Finance and the central commercial units since Herrenknecht became a joint stock company in 1998 until 2016. He will focus on the Legal, Human Resources and IT Group departments until the end of 2017 as a member of the Board of Management. The banker and business economist (VWA) joined Herrenknecht in 1982 and just one year later he took over the commercial management of the Herrenknecht GmbH as it was then. Kurt Stiefel is married and has two children.


Dipl.-Ing. (FH) Günter Richter

Member of the Board of Management

Günter Richter (born in 1960) is the Board of Management member responsible for the Group's Business Unit Traffic Tunnelling as well as the Business Unit Group Brands. The graduate engineer joined Herrenknecht in 1985 after receiving his mechanical engineering degree from the Offenburg University of Applied Sciences. After positions in design engineering and field service, from early 1990 the graduate engineer (FH) worked in project management, where he quickly took on increasing management responsibility. In 2004 he was entrusted with the technical management of the Business Unit Traffic Tunnelling, from 2006 he was a member of the Traffic Tunnelling Executive Board. In 2006, as a part-time student, he completed his EMBA at the University of St. Gallen (Switzerland). Günter Richter is married and has two children.


Dipl.-Ing. (FH) Ulrich Schaffhauser

Member of the Board of Management

In the Board of Management of the Herrenknecht Group Ulrich Schaffhauser (born in 1964) is responsible for three Business Units: Utility Tunnelling, Mining and Exploration. He joined Herrenknecht in 1992 as a design engineer after completing his degree in mechanical engineering at the Offenburg University of Applied Sciences. Since then the graduate engineer (FH) has held various management positions in the Business Unit Utility Tunnelling, including as Head of Production and from 2011 as Chairman of the Executive Board. Ulrich Schaffhauser lives with his family in Friesenheim.


The Supervisory Board of Herrenknecht AG

Mr. Hans-Jörg Vetter (Chairman)
Mr. Dr. Gerhard Schröder (Vice Chairman)
Mr. Peter Teuscher (Vice Chairman)
Mr. Dr. Christian Holzherr
Mr. Prof. Dr. Christian Rödl (not on the photo)
Mr. Prof. Dr. Michael Süß (not on the photo)
Ms. Dr. Karin Bäppler (Employee Representative)
Ms. Eva-Maria Bauer (Employee Representative)
Mr. Rainer Hammerschmidt (Employee Representative)
Mr. Hartmut Kaiser (Employee Representative)
Mr. Jürgen Roth (Employee Representative)
Mr. Dirk Wilhelm (Employee Representative)

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