Independent Consultant
Member of the following committees: Mediation Committee, Nominating Committee, Personnel Committee
- Year of Birth: 1964
- Citizenship: German
- Initial Order: 2026
- Term: until 2028
Education | |
1983 – 1988 | Diploma in Mechanical Engineering, Technical University of Munich (TUM) |
1988 – 1991 | Doctoral Studies in Mechanical Engineering, Technical University of Munich (TUM) |
1992 – 1993 | Postdoctoral Researcher (Alexander von Humboldt Fellowship), University of California in Berkeley |
Professional Career | |
1993 – 1998 | Consultant and Project Manager, McKinsey & Co., Inc. |
1998 – 2003 | Partner, McKinsey & Co., Inc. |
2003 – 2004 | Vice President, Procurement Strategy, BMW |
2004 – 2007 | Senior Vice President, Procurement of Production Materials, BMW |
2007 – 2014 | Executive Vice President, Procurement, Airbus |
2015 – 2019 | Executive Board Member and President (from 01/2017), German Aerospace Industries Association (BDLI) |
2015 – 2019 | Chief Procurement Officer, Airbus Group, and Chairman of the Management Board, Airbus Operations GmbH (Germany) |
2021 – 2024 | Chief Executive Officer (CEO) and Chairman of the Board, Diehl Group |
Other Mandates
Membership in supervisory boards and comparable regulatory bodies of unlisted companies:
- Member of the Supervisory Board of Otto Fuchs Verwaltungs SE and Advisory Council of Otto Fuchs KG (since 2025)
- Member of the Supervisory Board of MEYER WERFT GmbH (since 2025; Chairman until 12/2025)
Previously:
- Member of the Advisory Council of Diehl Stiftung & Co. KG (until 2025)
- CEO and Chairman of the Board, Diehl Group (until 2024)
- Member and Deputy Chairman of the Supervisory Board of MT Aerospace AG (until 2024)
Membership in supervisory boards and comparable regulatory bodies of listed companies:
- Member (Independent Director) of the Board of Directors of Aequs Limited, India (since 2020).
Previously:
- None.
Other than listed above, Dr. Klaus Richter has not been a member of any administrative, management or supervisory body of any other company or partnership outside the group within the last five years.
Managing Director of IG Metall Rheine
Member of the following committees: -
- Year of Birth: 1968
- Citizenship: German
- Initial Order: 2026
- Term: until 2031
Education | |
1984 | Intermediate School Certificate |
1985-1987 | Advanced Technical College Entrance Qualification, specializing in Business Administration |
1987 -1990 | Apprenticeship as an Industrial Management Assistant |
Professional Career | |
1990 – 1991 | Commercial Clerk in Financial Accounting |
1992 – 2006 | Administrative Assistant at IG Metall, Osnabrück |
2006 – 2007 | Trainee Programme at IG Metall |
2007 – 2008 | Political Secretary at IG Metall, Osnabrück |
2008 – 2017 | Political Secretary at IG Metall, Rheine |
2017 – 2021 | Treasurer and Managing Director at IG Metall, Rheine |
2022 – present | 1. Authorised Representative, Treasurer and Managing Director of IG Metall Rheine |
Other Mandates
Membership in supervisory boards and comparable regulatory bodies of unlisted companies:
- Member of the Supervisory Board of Schmitz Cargobull AG
Previously: None.
Membership in supervisory boards and comparable regulatory bodies of listed companies: None.
Other than listed above, Karin Hageböck has not been a member of any administrative, management or supervisory body of any other company or partnership outside the group within the last five years.
Chief Executive Officer of KNDS Deutschland GmbH & Co. KG
Member of the following committees: -
- Year of Birth: 1976
- Citizenship: German
- Initial Order: 2024
- Term: until 2028
Education | |
1999 | Dipl. Ing. Electrical Engineering, Baden-Wuerttemberg Cooperative State University |
Professional Career | |
1999 – 2008 | Various positions in quality and purchasing at Mercedes Benz AG |
2008 – 2011 | Head of Quality Engineering Center at Mercedes Benz |
2011 – 2014 | Head of localization project Mercedes-Benz Beijing and plant logistics |
2014 – 2017 | Division Manager Supply Chain Mercedes-Benz S-/E-Klasse and plant Sindelfingen, Stuttgart |
2018 | Head of Production Network Components and Structural Parts Casting/ Forging Mercedes-Benz PKW, Stuttgart |
2019 – 2023 | Head of Production Europe/Africa and Start-up factory of Mercedes Benz AG PKW, Sindelfingen |
2023 – 2025 | Chief Operating Officer at KNDS Deutschland GmbH & Co. KG, Munich |
Since 2023 | Chief Executive Officer at KNDS Deutschland GmbH & Co. KG, Munich |
Other Mandates
Membership in supervisory boards and comparable regulatory bodies of unlisted companies:
- Chief Executive Officer of KNDS Deutschland GmbH & Co. KG
Previously:
- Chief Operating Officer of KNDS Deutschland GmbH & Co. KG (2023 to 2025)
- Chairman of the Supervisory of Mercedes-Benz Manufacturing Hungary Kft. (2021 to 2023)
Membership in supervisory boards and comparable regulatory bodies of listed companies:
- None.
Previously:
- Non-Executive Director of Mercedes-Benz South Africa Ltd. (2019 to 2023)
Other than listed above, Florian Hohenwarter has not been a member of any administrative, management or supervisory body of any other company or partnership outside the group within the last five years.
Full-time works council member at RENK GmbH
Member of the following committees: -
- Year of Birth: 1979
- Citizenship: German
- Initial Order: 2026
- Term: until 2031
Education | |
2002 - 2007 | Diploma Engineer (University of Applied Sciences) in Mechanical Engineering and Production Engineering |
Professional Career | |
2007 - 2010 | Test Bench Engineer – Marine and Industrial Sector at RENK, Augsburg |
2011 – 2024 | Manager in Quality, Environmental, Occupational Health & Safety Management at RENK, Augsburg |
2025 – present | Full-time works council member at RENK, Augsburg |
Other Mandates
Membership in supervisory boards and comparable regulatory bodies of unlisted companies: None.
Previously: None.
Membership in supervisory boards and comparable regulatory bodies of listed companies: None.
Previously: None.
Other than listed above, Frank Klopfer has not been a member of any administrative, management or supervisory body of any other company or partnership outside the group within the last five years.
Head of Operational Accounting of RENK Group AG / RENK GmbH / RENK Test System GmbH
Head of Commercial Order Processing, RENK GmbH, Augsburg / RENK Test System GmbH
Member of the Following Committees: -
- Year of Birth: 1976
- Citizenship: German
- Initial Order: 2023
- Term: until 2031
Education | |
2001 | Commercial degree (Diplom-Kauffrau), University of Augsburg |
2001 | Bachelor of Science in Business Administration, University of Augsburg |
Professional Career | |
2002 – 2006 | Accountant in the accounting and taxation division, Deloitte & Touche GmbH, Augsburg |
2006 - 2008 | Senior Accountant in the accounting and taxation division, Deloitte & Touche GmbH, München |
2008 – 2013 | Chief Accountant, RENK Test System GmbH, Augsburg |
2013 - 2016 | Head of Accounting & Controlling, RENK Test System GmbH, Augsburg |
2016 - 2020 | Director of Commercial Management, |
2020 - 2022 | Head of Finance Department, RENK GmbH (until 2021 RENK AG), Augsburg |
2022 - 2023 | Head of Corporate Accounting, RENK Group, Augsburg |
since 2023 | Head of Operational Accounting of RENK Group AG / RENK GmbH / RENK Test System GmbH |
Other Mandates
Membership in supervisory boards and comparable regulatory bodies of unlisted companies:
- None.
Membership in supervisory boards and comparable regulatory bodies of listed companies:
- None.
Other than listed above, Adela Lieb has not been a member of any administrative, management or supervisory body of any other company or partnership outside the group within the last five years.
Independent consultant and supervisory board member
Member of the Following Committees: Audit Committee, Nomination Committee
- Year of Birth: 1984
- Citizenship: German/Austrian
- Initial Order: 2023
- Term: until 2028
Education | |
2006 – 2009 | Bachelor of Arts at Business Administration, Baden-Wuerttemberg Cooperative State University and Bachelor of Arts at International Management, Open University London |
2013 – 2015 | Chartered Financial Analyst®, CFA Institute |
Professional Career | |
2009 – 2010 | Financial Group Controller at Voith GmbH, Heidenheim |
2011 – 2013 | Senior Associate at KPMG AG, Frankfurt & Stuttgart |
2014 – 2018 | Portfolio Monitoring & Development Professional at Westpark Management, Frankfurt |
2018 – 2025 | Investment Advisory Professional at Triton, Frankfurt |
Other Mandates
Membership in supervisory boards and comparable regulatory bodies of unlisted companies:
- None.
Previously:
- Advisory Board Member of Talis Management Holding GmbH, Heidenheim, Germany (until 2023)
Membership in supervisory boards and comparable regulatory bodies of listed companies:
- None.
Other than listed above, Johannes Meier has not been a member of any administrative, management or supervisory body of any other company or partnership outside the Group within the last five years.
Full-time works council member at RENK GmbH
Member of the following committees: -
- Year of Birth: 1971
- Citizenship: Portuguese
- Initial Order: 2026
- Term: until 2031
Education | |
1987 - 1990 | Apprenticeship as a lathe operator at RENK |
Professional Career | |
1990 - 2012 | Boring Machine Operator in Housing Production at RENK AG, Augsburg |
2012 - 2026 | Machining Technician in the M&I Division at RENK GmbH, Augsburg |
2018 – 2026 | Works council member at RENK GmbH, Augsburg |
2026 - present | Full-time works council member at RENK GmbH, Augsburg |
Other Mandates
Membership in supervisory boards and comparable regulatory bodies of unlisted companies: None.
Previously: None.
Membership in supervisory boards and comparable regulatory bodies of listed companies: None.
Previously: None.
Other than listed above, José Moreira has not been a member of any administrative, management or supervisory body of any other company or partnership outside the group within the last five years.
Independent management consultant
Member of the following Committees of the Supervisory Board: Human Resources Committee (Chair), Nomination Committee (Chair)
- Year of Birth: 1972
- Citizenship: German
- Initial Order: 2024
- Term: until 2028
Education | |
1991 – 1996 | Diplom Kauffrau (FH), apprenticeship in Business Administration, University of Technology and Economics Dresden, Germany |
2001 | PED Program for Executive Development, IMD, Lausanne, Switzerland |
Professional Career | |
1996 – 1999 | Senior Consultant Audit, Arthur Andersen Wirtschaftsprüfungsgesellschaft mbH, Munich, Germany |
1999 – 2002 | Senior Associate, UBS Capital GmbH, Munich, Germany |
2002 – 2012 | Partner, BC Partner Beteiligungsberatung GmbH, Hamburg, Germany |
2008 – 2013 | Advisory Board Member, SGB-SMIT Group, Regensburg, Germany |
2010 – 2020 | Member of the Supervisory Board / Member of the Audit Committee, Brenntag SE, Essen, Germany |
2013 – 2014 | Member of the Board of Managers and Advisor to the shareholders, VAT Group AG, Switzerland |
2015 – 2023 | Independent Management Consultant, Hamburg, Germany |
2015 – 2023 | Member of the Supervisory Board / Member of the Audit Committee / Member of the Investment Committee, Jenoptik AG, Jena, Germany |
2017 – 2023 | Member of the Supervisory Board, Lufthansa Technik AG, Hamburg, Germany |
2018 – 2020 | Member of the Supervisory Board / Member of the Audit Committee, Franz Haniel & Cie. GmbH, Duisburg, Germany |
2020 – 2023 | Chair of the Supervisory Board / Chair of the Human Resources Committee / Member of the Audit Committee, Franz Haniel & Cie. GmbH, Duisburg, Germany |
2020 – 2023 | Chair of the Supervisory Board / Chair of the Transformation & ESG Committee / Chair of the Nomination & Remuneration Committee, Brenntag SE, Essen, Germany |
2023 – 2024 | Managing Director, Kühne Holding AG, Schweiz |
Other Mandates
Membership in supervisory boards and comparable regulatory bodies of unlisted companies:
- Member of the Advisory Board and Chair of the Risk and Audit Committee of Engel & Völkers Holding GmbH, Hamburg, Germany
- Member of the Supervisory Board of Weidmüller Holding AG & Co. KG, Detmold, Germany
Previously:
- Chair of the Supervisory Board and of the Human Resources Committee as well as Member of the Audit Committee of Franz Haniel & Cie. GmbH, Duisburg, Germany (until 2023)
- Member of the Supervisory Board of Lufthansa Technik AG, Hamburg, Germany (until 2023)
Membership in supervisory boards and comparable regulatory bodies of listed companies:
- None.
Previously:
- Chair of the Supervisory Board, of the Transformation and ESG Committee and of the Nomination and Remuneration Committee of Brenntag SE, Essen, Germany (until 2023)
- Member of the Supervisory Board, of the Audit Committee as well as Investment Committee of Jenoptik AG, Jena, Germany (until 2023)
Other than listed above, Doreen Nowotne has not been a member of any administrative, management or supervisory body of any other company or partnership outside the Group within the last five years.
Joint Works Council Chairman of RENK GmbH, Works Council Chairman of RENK GmbH, Augsburg, Works Council Chairman of RENK Test System GmbH
Member of the Following Committees: Audit Committee, Mediation Committee, Personnel Committee
- Year of Birth: 1966
- Citizenship: German
- Initial Order: 2023
- Term: until 2031
Education | |
1981 – 1985 | Machinist Apprenticeship at RENK AG, Augsburg |
Professional Career | |
1985 – 2014 | CNC Operator at RENK AG, Augsburg |
1998 – 2014 | Member of the Works Council at RENK AG, Augsburg |
2014 – 2018 | Deputy Works Council Chairman at RENK AG and RENK Test System GmbH, Augsburg |
since 2018 | Works Council Chairman at RENK GmbH (formerly RENK AG) and RENK Test System GmbH, Augsburg |
Other Mandates
Membership in supervisory boards and comparable regulatory bodies of unlisted companies:
- None.
Membership in supervisory boards and comparable regulatory bodies of listed companies:
- None.
Other than listed above, Klaus Refle has not been a member of any administrative, management or supervisory body of any other company or partnership outside the Group within the last five years.
Second Authorised Representative and Managing Director of IG Metall Augsburg
Member of the following committees: Audit Committee, Personnel Committee, Mediation Committee
- Year of Birth: 1987
- Citizenship: German
- Initial Order: 2026
- Term: until 2031
Education | |
2004 – 2008 | Electronics Technician for Devices and Systems (IHK) at OSRAM GmbH, Augsburg |
2015 – 2018 | Electronics Technician for Devices and Systems (IHK) at OSRAM GmbH, Augsburg |
2018 – 2019 | Master of Laws (LL.M.) in Business Law, Technische Hochschule Nürnberg (LL.M.) |
Professional Career | |
2008 – 2015 | Electronics Technician in Mechanical Engineering, Production Planner, and Works Council Assistant at OSRAM GmbH, Augsburg |
2019 – 2024 | Business Lawyer and Staff Unit Manager in the General Secretariat of Co-Determination at MAN Truck & Bus SE, München |
2024 – 2025 | Advisor to the Chair of the Works Council at RENK GmbH, Augsburg |
2025 - present | Second Authorised Representative and Managing Director at IG Metall, Augsburg |
Other Mandates
Membership in supervisory boards and comparable regulatory bodies of unlisted companies:
- KUKA SE & Co. KGaA
- Valeo Schalter und Sensoren GmbH
Previously: None.
Membership in supervisory boards and comparable regulatory bodies of listed companies: None.
Previously: None.
Other than listed above, Matti Riedlinger has not been a member of any administrative, management or supervisory body of any other company or partnership outside the group within the last five years.
Member of the Supervisory Board and Chair of the Audit Committee of INNIO Jenbacher GmbH & Co OG, Jenbach, Austria and
Member of the Supervisory Board and Chair of the Audit Committee of technotrans SE, Sassenberg, Germany
Member of the Supervisory Board of testo SE, Titisee/Neustadt, Germany
as well as
Senior Advisor at Advent International GmbH, Frankfurt am Main, Germany
Member of the following Committees of the Supervisory Board: Audit Committee (Chair)
- Year of Birth: 1969
- Citizenship: German
- Initial Order: 2024
- Term: until 2028
Education | |
1989 – 1994 | Degree in Business Administration, University of Augsburg |
1992 – 1993 | Executive Education / M.B.A., University of Dayton/ Ohio |
Professional Career | |
1995 – 2002 | Various positions in finance and Controlling, Volkswagen AG/ SEAT S.A. |
2002 – 2006 | Head of the General Secretariat of the CEO of Volkswagen AG, Wolfsburg |
2007 – 2010 | Chair of the Board of Managers at AutoVision GmbH, Wolfsburg |
2010 – 2014 | Managing Director, |
2014 – 2018 | Member of Board of Managers at Zumtobel Group AG, Dornbirn |
2019 – 2021 | Member of Board of Managers at Ceconomy AG, Düsseldorf |
2023 – 2024 | Member of Board of Managers (interim activity)/ Senior Advisor Aurelius, |
Other Mandates
Membership in supervisory boards and comparable regulatory bodies of unlisted companies:
- Supervisory Board and Chair of the Audit Committee of INNIO Jenbacher GmbH & Co OG, Jenbach, Austria (since 2022)
- Independent Senior Advisor at Advent International (since 2022)
- Supervisory Board of testo SE, Titisee/ Neustadt, Germany (since June 2025)
Previously:
- Supervisory Board and Chair of the Audit Committee of Vivantes - Netzwerk für Gesundheit GmbH, Berlin (2014 – 2020)
- Advisory Board of carmeq GmbH (2007 – 2009)
Membership in supervisory boards and comparable regulatory bodies of listed companies:
- Supervisory Board and Chair of the Audit Committee of technotrans SE, Sassenberg, Germany (since May 2025)
Previously:
- Board of Directors and Chair of the Audit Committee of u-blox AG, Thalwil, Switzerland (2022-2025)
- Supervisory Board and Chair of the Audit Committee of Leoni AG, Nuremberg, Germany (2022 – 2023)
- Board of Directors and Chair of the Audit Committee of Swiss Steel Group AG, Lucerne, Switzerland (2020 – 2022)
- Supervisory Board of Schweizer Electronic AG, Rottweil, Germany (2016 – 2019)
- Supervisory Board of Extessy AG (2007 – 2009)
Other than listed above, Karin Sonnenmoser has not been a member of any administrative, management or supervisory body of any other company or partnership outside the Group within the last five years.
Independent Director of Trillium Flow Technologies Holdco Ltd, United Kingdom
Former Chair of Supervisory Board of Kelvion Holding GmbH, Bochum, Germany
Member of the following Committees of the Supervisory Board: Mediation Committee
- Year of Birth: 1960
- Citizenship: German
- Initial Order: 2023
- Term: until 2028
Education | |
1980 – 1986 | Industrial Engineering in Economics and Electrical Engineering, TH Darmstadt |
Professional Career | |
1986 – 1987 | Assistant of the Head of the Market Research and Planning Business Unit at Carl Schenk AG, Darmstadt |
1986 – 1990 | Head of Procurement Department at Krupp Fördertechnik, Rheinhausen, Germany |
1991 – 1995 | Head of Logistics Business Unit at Krupp Fördertechnik, Essen |
1995 – 1999 | Managing Director at Krupp Fördertechnik, South Africa |
1999 – 2001 | Head of the Conveyor Technology Business Unit at Krupp Fördertechnik, Enningerloh |
2001 – 2006 | CEO of Allweiler AG, Radolfzell |
2006 – 2007 | Managing Director at European Roller Bearing Business Unit, NSK Deutschland GmbH |
2007 – 2011 | Member of the Executive Board and responsible for the Power Engineering Business Unit (MAN Diesel & Turbo SE and RENK AG) at MAN SE, Munich, Germany Chair of the Executive Board at MAN Diesel & Turbo SE, Munich |
2012 – 2015 | CEO of Sulzer, Winterthur, Switzerland |
2018 – 2021 | Chair of the Supervisory Board at Kelvion Holding GmbH, Bochum, Germany |
since 2020 | Independent Director of Trillium Flow Technologies Holdco Ltd., London, UK |
Other Mandates
Membership in supervisory boards and comparable regulatory bodies of unlisted companies:
- Non-executive Member of the Board of Directors of Trillium Flow Technologies Holdco Ltd., London, United Kingdom (since 2020)
Previously:
- Chair and Member of the Advisory Committee of Kelvion Holding GmbH, Bochum, Germany (2016 – 2020).
Membership in supervisory boards and comparable regulatory bodies of listed companies:
- None.
Other than listed above, Klaus Stahlmann has not been a member of any administrative, management or supervisory body of any other company or partnership outside the Group within the last five years.
¹ Chairman
² Employee representative
³ Independent members of the Supervisory Board
Qualification Matrix
The supervisory board of RENK Group AG has summarised its evaluation of the status of implementation of the skills profile in a qualification matrix (as at December 2024).
Committees
Remuneration of the supervisory board
The remuneration of the Supervisory Board members is set out in Section 15 of the articles of association of RENK Group AG. The Annual General Meeting 2024 has confirmed the remuneration, including its underlying remuneration system, with a majority of 99.99% of the votes.
