Personal information
Date of birth: 4 January 1969    
Place of birth: Schwäbisch Hall, Germany 

Education

Studied business administration with a focus on technology at the University of Stuttgart    

Degree: postgraduate degree in business administration (Diplom-Kaufmann) with a focus on technology

Doctorate (Dr rer.pol.) from the University of Stuttgart
 

Career history
1997
Senior consultant at Horváth & Partners GmbH, Stuttgart

1999
Principal and authorised signatory (Prokurist) at Horváth & Partner AG, Zurich, Switzerland; from 2000 also Head of the Automotive Industries Competence Center, Horváth & Partner, for Germany, Austria and Switzerland (DACH region)

2002
Head of Corporate Controlling at AUDI AG, Ingolstadt

2005
Head of Corporate Strategy at AUDI AG, Ingolstadt

2007
Head of Business in China at AUDI AG, Ingolstadt

2009
President of AUDI CHINA Enterprise Mgmt. Co. Ltd., Beijing, PR China; from 2013: also Executive Vice President for China at AUDI AG, Ingolstadt

2015
Member of the Board of Management with responsibility for marketing and sales at AUDI AG, Ingolstadt

Since 2018
Senior advisor at Horváth & Partners Automotive Competence Center, Munich

Summary of relevant activities alongside the Supervisory Board membership:
Dr Dietmar Voggenreiter’s main occupation is management consultant.

Personal information

Date of birth: 7 December 1959
Place of birth: Miltenberg, Germany

Education
Studied economics at Philipps University, Marburg, Germany
Degree: ‘Diplom’ (postgraduate-level degree) in Economics 

Post-graduate studies in computer science, Marburg

Career history
1986
Neckermann Versand AG, Frankfurt, Germany
Marketing planner/customer information systems

1987
Technology advisory service of the Confederation of German Trade Unions (North Rhine-Westphalia), with the following functions:
Advisor, Head of Training, Head of Labour and Economics, and member and Chair of the Works Council
Trade union representative of the ver.di trade union on the Supervisory Board of Stadtwerke Düsseldorf AG 

2008
IG Metall Cologne-Leverkusen branch, Cologne
Trade union secretary 

2013 
Trade union representative on the Supervisory Board of DEUTZ AG

Personal information

Date of birth: 10 June 1978
Place of birth: Karlsruhe, Germany

Education
Studied law at the University of Bonn
Degree: doctorate in law (Dr jur) from the University of Bonn

Career history
2007
Lawyer with the international law firm Freshfields Bruckhaus Deringer LLP, Cologne, spending almost a year at the firm’s Brussels office and ten months on secondment in the legal affairs department of an international energy company

2016
Corporate lawyer at DEUTZ AG, Cologne

2017
Corporate lawyer and General Counsel at DEUTZ AG, Cologne 

2018
Senior managers’ representative on the Supervisory Board, DEUTZ AG, Cologne
Chairman of the Senior Managers Committee of DEUTZ AG, Cologne

Personal data
Date of birth: March 1, 1960
Place of birth: Frankenberg/Eder

Education
University of Giessen
Degree: Engineering

Career History
1985 – 1991
Head of Operations, Continental plant Korbach

1990 – 1992
Production Manager, Bicycle Tires and Tubes, Vehicle Replacement Tires, Continental Korbach Plant

1992 – 1996
Managing Director JV, Continental/Vittoria Tyres Thailand

1996 – 2001
Key Account Management ASIA, 2-Wheel Tires Continental, Bangkok/Thailand

2001 – 2006
Business Unit Manager 2-Wheel Tires Continental, Korbach

2006 – 2014
Vice President Independent Aftermarket and Managing Director, Continental Aftermarket GmbH, Frankfurt

2014 – 2021
Senior Vice President ZF Division
Aftermarket & Global Executive Team ZF AG, Schweinfurt & Friedrichshafen

Since 2022
Self-employed management consultant

Overview of significant activities in addition to the Supervisory Board mandate:
Mr. Helmut Ernst works full-time as an independent management consultant.

Personal data
Date of birth: February 16, 1975
Place of birth: Essen

Education
Université catholique de Louvain (UCL), Belgium
Degree: MA (DES), Financial Economics

University of Kent, Canterbury, United Kingdom
Degree: BA (Hons), European Economics with Econometrics

Université de la Réunion, France
Degree: BA (Lic.), Finance and International Economics

Career History

1999
Consultant / Assistant Manager at KPMG,
Frankfurt am Main

2001
Project Manager / Vice President in the area of European Business Development and Finance at Winterthur Insurance, Wiesbaden

2004
Senior Project Manager, Corporate Department Mergers & Acquisitions, ThyssenKrupp Services, Düsseldorf

2007
Chief Financial Officer, thyssenKrupp Xervon Sweden, Stockholm, Sweden

2009
Chief Financial Officer, thyssenkrupp Elevator, Regional Center RUESA (Russia, Eastern Countries, Switzerland, Austria), Vienna, Austria

2014
Chief Financial Officer, Coperion, Stuttgart

2017
Chief Financial Officer, Klöckner Metals France, Paris, France

2018
Head of Corporate Controlling & Development / Mergers & Acquisitions, Klöckner & Co, Duisburg

Since 2020
Chief Financial Officer, Alba Services / Interzeron Group, Berlin

Overview of significant activities in addition to the Supervisory Board mandate:
Ms. Melanie Freytag’s full-time position is as Chief Financial Officer of Interzero Group, Berlin.

Personal information
Date of birth: 15 January 1962   
Place of birth: Frankfurt/Main, Germany

Grew up in Asunción, Paraguay (South America) – completed a baccalaureate in humanities and sciences; obtained a German university entrance qualification (Abitur) in Hamburg, Germany

Education
Studied business economics at Goethe University Frankfurt and at the University of Hohenheim in Stuttgart
Degree: ‘Diplom’ (postgraduate-level degree) in Business Economics

Career history
1987      
Auditing assistant/senior consultant at Dr. Lipfert GmbH, Wirtschaftsprüfungsgesellschaft/Steuerberatungsgesellschaft, Stuttgart

1991  
Qualified as a tax advisor

1994 
Qualified as an auditor

1995  
Director of own audit and management consultancy business, cooperating with KPMG, Wirtschaftsprüfungsgesellschaft, Buenos Aires, Argentina

1998  
Moved abroad to Mexico City, Mexico

2001 - 2015
Engagement leader and authorized signatory (Prokuristin) in Audit & Assurance at PricewaterhouseCoopers AG, Wirtschaftsprüfungsgesellschaft, Stuttgart
 

2015 - 2022
Member of the Supervisory Board and of the Audit Committee of HOCHTIEF Aktiengesellschaft, Essen (publicly listed)

2016 - 2018
Supported the Climate Governance Initiative of the World Economic Forum in Davos with the development of the Principles for Effective Climate Governance

2018 - 2023
Member of the Supervisory Board, chairwoman of the Audit Committee, and member of the Nominations Committee of CEWE Stiftung & Co. KGaA, Oldenburg (publicly listed)

2022 - 2023
Deputy chairwomen of the Supervisory Board and chairwomen of the Audit Committee of NEMETSCHEK SE, Munich (publicly listed)

Since 2015   
Director of own audit, tax advice, and management consultancy business in Leonberg

Since 2020
Honorary member of the Advisory Board of FEA – Financial Experts Association e.V., Berlin

Summary of relevant activities alongside the Supervisory Board membership:
Ms. Patricia Geibel-Conrad, certified auditor and tax advisor, acts as an independent supervisory board member and operates her own audit, tax advice, and management consultancy business.

Personal data
Date of birth: December 30, 1982
Place of birth: Ulm, Germany

Education
Apprenticeship as an automotive electrician

Career history
2004 – 2006
Management of the gastronomic family business

2006 – 2019      
Employee on the 91X series, and temporary activity in the DPS team, DEUTZ AG, Ulm

2014 – 2018      
Member of the Works Council of DEUTZ AG at the plant in Ulm

2019 – 2022      
Deputy Chairman of the Works Council of DEUTZ AG at the plant in Ulm

2022 – today      
Chairman of the Works Council of DEUTZ AG at the plant in Ulm

2023                     
Employee representative on the Supervisory Board of DEUTZ AG, Cologne

Personal data
Date of birth: July 3, 1967      
Place of birth: Cologne, Germany

Education 
Apprenticeship as plasterer

Professional career
1987
Employee at Autohaus Fleischhauer Audi/VW, Cologne

1989
Employee in the assembly department, Klöckner-Humboldt-DEUTZ (today DEUTZ AG), Cologne

1995
Employee in the test field; qualification in the field of engine technology and test processes in shift work, DEUTZ AG, Cologne

2018 – today
Member of the Works Council of DEUTZ AG, Cologne
Committee work: personnel, time management, REFA / MTM, family and career, works committee

2023
Employee representative on the Supervisory Board of DEUTZ AG, Cologne

Personal information       
Date of birth: 17 October 1957        
Place of birth: Schönau

Education 
Studied mechanical engineering at the University of Stuttgart, specialising in control systems and thermal turbomachinery      
Degree: Doctorate in Engineering (Dr Ing) from the University of Stuttgart

Career history
1989
Bosch Diesel Systems, group leader, measurement technology and tolerance issues

1993
Bosch Diesel Systems, group leader/head of department, development of distributor injection pumps          

1997          
Bosch Diesel Systems, system area manager, time-controlled single pump systems

2001                      
Bosch Diesel Systems, business unit manager, injection systems for commercial vehicles

2007          
General Manager of Bosch Automotive Diesel Systems Co. Ltd, Wuxi, China

2011          
Executive Vice President of Bosch Diesel Systems with responsibility for development

2014          
Executive Vice President of Bosch Diesel Systems with responsibility for the business unit injection systems for commercial vehicles & off road

Since 2018
Freelance management consultant 
Supervisory Board Chairman of Bosch Engineering GmbH, Abstatt, Germany
Supervisory Board Chairman of ITK Engineering GmbH, Rülzheim, Germany
Vice Chairman Weifu High Technology Group, Wuxi, China (until May 2021)

Summary of relevant activities alongside the Supervisory Board membership:
In addition to his work as a freelance management consultant, Dr Ing Rudolf Maier currently serves as chairman of the Supervisory Board of Bosch Engineering GmbH, Abstatt, Germany, as well as chairman of the Supervisory Board of ITK Engineering GmbH, Rülzheim, Germany.

Personal data
Date of birth: May 5, 1960
Place of birth: Munich

Education
Technical University of Munich, Mechanical Engineering
Degree: Intermediate diploma

HM University of Applied Sciences Munich, Electrical Engineering
Degree: Diploma

Career History
1992 – 1998
Engineer, MAN Nutzfahrzeuge AG

1999 – 2006
Head of Department, Electronic Systems, MAN Nutzfahrzeuge AG

2006 – 2008
Managing Director of the Heavy Trucks Business Unit, MAN Nutzfahrzeuge AG

2008 – 2015
Management Board member responsible for Strategy & Portfolio Development, Research & Development Trucks, Buses, Powertrains (CTO) (from 2009) and Purchasing (from 2010), MAN Nutzfahrzeuge AG

Since 2016
Self-employed management consultant

Overview of significant activities in addition to the Supervisory Board mandate:
Mr. Bernd Maierhofer currently performs his duties as a member of the Supervisory Board of VOSS Automotive GmbH, Wipperfürth, in addition to his full-time occupation as an independent management consultant.

Personal data
Date of birth: March 13, 1966
Place of birth: Cologne

Education
1984 Apprenticeship as office clerk at Klöckner-Humboldt-DEUTZ (today DEUTZ AG), Cologne

Professional career
1987 – 2016
Clerk in Order Management Spare Parts, DEUTZ AG, Cologne 

2016 – Today 
Released member of the Works Council of DEUTZ AG, Cologne
Focus: Human resources, digitalization and data protection
Other committees: Health management, occupational health and safety committee, appeals committee for appeals on performance appraisal and grouping

Since 2023
Employee representative on the Supervisory Board of DEUTZ AG, Cologne