Businessman using tablet in conference room

Supervisory Board

Richard Ridinger

Richard Ridinger

Chairperson of the Supervisory Board


  • Nationality: German
  • Year of birth: 1958
  • Place of birth: Heidelberg, Germany
  • Profession: Independent management consultant
Richard RidingerChair, member of the Supervisory Board since June 10, 2020, elected until the end of the General Shareholders’ Meeting 2027.
CommitteesMember of the Nomination and Remuneration Committee since June 15, 2023, and member of the Transformation and ESG Committee since its establishment in January 2021.
Specific expertise and experienceMore than 20 years of management experience in leading management positions in the chemical industry and healthcare industry, with a focus on operational and strategic transformations due to his professional background with various positions in the chemical industry.
Career2012 - 2019CEO, Lonza Group, Basel, Switzerland (SMI-listed)
2002 - 2011Executive Vice President, Cognis, Monheim am Rhein, Germany
1986 - 2002Various Positions in R&D, Engineering, Operations, Marketing & Sales, Business Unit Lead, HENKEL KGaA, Düsseldorf, Germany
Education and Training1979 - 1985Chemical Engineering (Diploma), University of Karlsruhe, Germany
Membership in Supervisory Boards to be established under applicable lawNone
Membership in comparable domestic and foreign control bodies of commercial enterprises
  • DSM-Firmenich AG, Kaiseraugst, Switzerland (listed) (Non-executive member of the Board of Directors)
  • Roar HoldCo AB, Stockholm, Sweden (not listed) (Non-executive member and Chair of the Board of Directors) and Recipharm AB, Stockholm, Sweden (not listed) (Group company of HoldCo AB) (Non-executive member and Chair of the Board of Directors)
Stefanie Berlinger

Stefanie Berlinger

Deputy Chairperson of the Supervisory Board


  • Nationality: German
  • Year of birth: 1973
  • Place of birth: Neukirchen b. Hl. Blut, Germany
  • Profession: Managing Director, Lilja & Co. GmbH, Frankfurt, Germany
Stefanie BerlingerDeputy Chair, Member of the Supervisory Board since June 9, 2015, elected until the end of the General Shareholders’ Meeting 2027
CommitteesMember of the Nomination and Remuneration Committee since May 22, 2025.
Specific expertise and experienceMore than 25 years of professional experience in investment banking and capital markets on international level, with expert knowledge in accounting, auditing, risk management and compliance as well as sustainability and in particular ESG.
CareerSince 2010Managing Director, Lilja & Co. GmbH, Frankfurt, Germany
Since 2006Partner, Lilja & Co. AG, Zurich, Switzerland
2005Director, lnstitutional Equity Sales, Deutsche Bank AG, Frankfurt, Germany
2000 -
2004
Director, Equity Capital Markets, Deutsche Bank AG, London, UK
1998 -
1999
Associate, Equity Capital Markets Syndicate, Deutsche Bank AG, Frankfurt, Germany
1996 -
1997
Analyst, Corporate Finance, Deutsche Zentralgenossenschaftsbank AG, Frankfurt, Germany

Education and Training
1992 -
1994
European Business Studies (Bachelor), Oxford Brookes University, Oxford, UK
1991 -
1995
Business administration (Diploma), Technical University Regensburg, Germany
Membership in Supervisory Boards to be established under applicable lawNone
Membership in comparable domestic and foreign control bodies of commercial enterprisesNone

Sujatha Chandrasekaran

  • Nationality: American, Australian and Indian
  • Year of birth: 1967
  • Place of birth: Sivaganga, India
  • Profession: Independent management consultant
Suja ChandrasekaranMember of the Supervisory Board since June 15, 2023, elected until the end of the General Shareholders’ Meeting 2026.
CommitteesMember of the Audit and Compliance Committee since June 15, 2023
Specific expertise and experienceMore than 25 years of experience in leading executive management positions in global companies, with a strong focus on technology and data, strategic transformation, digital business models, operations cybersecurity and e-commerce.
Career2019 - 2022Chief Digital and Information Officer and Senior Executive Vice President, CommonSpirit Health, Chicago, IL, USA.
2016 - 2019Global Chief Digital Officer and Chief Information Officer Kimberly-Clark Corporation, Irving, TX, USA.
2011 - 2016Senior Vice President and Global Chief Technology and Data Officer, Walmart Inc., Bentonville, AR, USA.
2009 - 2011Senior Vice President, Global Chief Information and E-Commerce Officer, The Timberland Company, Stratham, NH, USA.
2007 - 2009Regional Vice President and Chief Technology Officer, PepsiCo Inc., Plano, TX, USA.
1997 - 2007Various positions at Nestlé S.A.: Senior Director and CIO in Glendale, CA, USA and Sao Paulo, Brazil.
Education and Training2022NACD Directorship Certification, National Association of Corporate Directors, USA.
2004Executive development, London Business School, London, England.
1994 - 1996Business Systems (Master), Monash University, Melbourne, Australia.
1984 - 1988Electrical Engineering (Bachelor), University of Madras, Madras, India.
Membership in Supervisory Boards to be established under applicable lawNone
Membership in comparable domestic and foreign control bodies of commercial enterprises
  • American Eagle Outfitters Inc., Pittsburgh, PA, USA (listed) (Non-executive member of the Board of Directors)
  • Agendia Inc., Irvine, CA, USA (not listed) (Non-executive member of the Board of Directors)
  • Atos SE, Bezons, France (listed) (Non-executive member of the Board of Directors)
  • Pando.AI, Chicago, Illinois, USA (not listed) (Non-executive member of the Board of Directors)
Wijnand Donkers

Wijnand Donkers


  • Nationality: Dutch
  • Year of birth: 1962
  • Place of birth: Oss, The Netherlands
  • Profession: Independent management consultant
Wijnand DonkersMember of the Supervisory Board since June 8, 2017, elected until the end of the General Shareholders’ Meeting 2026.
CommitteesMember of the Transformation and ESG Committee since its establishment in January 2021, Chair of the Transformation and ESG Committee since May 22, 2025
Specific expertise and experienceMore than 25 years of professional experience leading change, performance improvement and executing transformative M&A as an energy and real estate private equity executive. He has a deep understanding of the challenges facing the international energy and chemicals industry and special expertise in the field of Environment, Social & Governance (ESG) due to his professional background and various executive leadership positions in the chemical industry.
CareerSince 2019Senior Adviser, Cerberus Capital Management LLC, New York
Since 2012Managing Director, Horizon D. Capital BV, Wassenaar, the Netherlands
2015 -
2018
Industry Partner, Petrus Advisers, London, Great Britain
2007 -
2012
CEO, Deutsche Annington SE / Vonovia SE, Düsseldorf, Germany
1985 -
2007
Business Unit Leader Oil and Gas, Chemicals and Trading & Optimisation, BP p.l.c., London, United Kingdom
Education and Training2004 -
2007
Several post graduate training programmes in the USA and UK
2004Advanced Management Programme, Harvard Business School, Boston, USA
1988 -
1989
Business Administration (Master), Erasmus University, Rotterdam, The Netherlands and William E. Simon School of Business, Rochester, USA
1984 -
1986
International Affairs (Diploma), The Johns Hopkins University, Bologna, Italy and Washington DC, USA
1981 -
1984
Business Administration (Bachelor), Nyenrode Business Universiteit, Breukelen, The Netherlands
Membership in Supervisory Boards to be established under applicable lawNone
Membership in comparable domestic and foreign control bodies of commercial enterprisesNone
Ulrich Harnacke

Ulrich Harnacke


  • Nationality: German
  • Year of birth: 1957
  • Place of birth: Aachen, Germany
  • Profession: Chartered accountant and independent business consultant
Ulrich HarnackeMember of the Supervisory Board since June 8, 2017, elected until the end of the General Shareholders’ Meeting 2026.
CommitteesMember and Chair of the Audit and Compliance Committee since June 8, 2017.
Specific expertise and experienceMore than 40 years of professional experience as auditor and consultant of German and international clients, with extensive experience in corporate governance, risk management, compliance, and M&A with international mainly stock listed companies.
Career2015 -
2023
Independent Business Consultant and Partner, Rhodion Advisors GmbH, Düsseldorf, Germany
2007 -
2015
Partner and Managing Director, Deloitte GmbH, Wirtschaftsprüfungsgesellschaft, Munich, Germany
1997 -
2006
Member of the Board of Management, BDO AG Wirtschaftsprüfungsgesellschaft, Hamburg, Germany
1981 -
1997
Auditor and Tax Consultant
Education and Training1976 -
1981
Business Administration (Diploma), University of Cologne and RWTH Aachen, Germany
Membership in Supervisory Boards to be established under applicable lawNone
Membership in comparable domestic and foreign control bodies of commercial enterprises
  • Zentis GmbH & Co. KG, Aachen, Germany (Member of the Advisory Board)

Dominik de Daniel

  • Nationality: German, Swiss
  • Year of birth: 1975
  • Place of birth: Lörrach, Germany
  • Profession: Chief Executive Officer
Dominik de DanielMember of the Supervisory Board since May 22, 2025, elected until the end of the General Shareholders’ Meeting 2028.
CommitteesMember of the Audit and Compliance Committee since May 22, 2025.
Specific expertise and experienceMore than 20 years C-suite leadership experience in various listed, globally leading companies in the business services industry with a focus on Logistics, Strategy, Finance, M&A, Process Improvement, IT & Digitalization and Investor Relations
CareerSince 2024Chief Executive Officer, Kühne Holding AG, Schindellegi, Switzerland
2019 -
2023
Chief Financial Officer, SGS SA, Geneva, Switzerland
2015 -
2018
Chief Financial Officer and Chief Operating Officer, IWG PLC, Zug, Switzerland
2006 -
2015
Chief Financial Officer and Global Head of Solutions , Adecco SA, Zürich, Switzerland
2000 -
2006
Various positions at DIS AG, Düsseldorf, Germany
(Chief Financial Officer and Head of Investor Relations and M&A)
Education and Training1998 -
1999
Degree CEFA Investment Analyst at DVFA, Frankfurt, Germany
1995 -
1997
Degree “Bankfachwirt” at the Bank Academy, Freiburg, Germany
1993 -
1995
Vocational Training with the degree “Bankkaufmann”, DB Lörrach, Germany
Membership in Supervisory Boards to be established under applicable law
  • Flix SE, Munich, Germany (not listed) (Member of the Supervisory Board)
  • Aenova Holding GmbH, Starnberg Germany, (not listed) (Group company of Kühne Holding AG) (Chair of the Supervisory Board)
Membership in comparable domestic and foreign control bodies of commercial enterprises
  • Kuehne + Nagel International AG, Schindellegi, Switzerland (listed) (Group company of Kühne Holding AG) (Non-executive Member of the Board of Directors)

Karl von Rohr

  • Nationality: German
  • Year of birth: 1965
  • Place of birth: Essen, Germany
  • Profession: Lawyer, Member of Company and Foundation Boards
Karl von Rohr Member of the Supervisory Board since June 9, 2015, elected until the end of the General Shareholders’ Meeting 2028.
CommitteesMember and Chair of the Nomination and Remuneration Committee since July 9, 2025.
Specific expertise and experienceGermany-, US- and Swiss trained Lawyer with three decades of executive and non-executive experience in large international publicly listed as well as family-owned companies across multiple industries.
CareerSince 2018Member of the Supervisory Board (Chairman of the Supervisory Board until 06/2024), DWS Group GmbH & Co. KGaA, Frankfurt/Main, Germany
2015 -
2023
Member of the Management Board, (Deputy Chairman until 2023) Deutsche Bank AG, Frankfurt/Main, Germany
2013 -
2015
Global Chief Operating Officer, Regional Management, Deutsche Bank AG, Frankfurt/Main, Germany
2004 -
2013
Global Human Resources Business Partner and various global roles in Human Resources, Deutsche Bank AG, Frankfurt/Main, Germany
2004Global Chief Operating Officer for Legal, Audit und Compliance, Deutsche Bank AG, Frankfurt/Main, Germany
2000-
2004
Member of the Management Board, Chief Financial Officer, Chief Operating Officer, Deutsche Bank SA/NV, Brüssels, Belgium
1997-
2000
Various positions at Deutsche Bank AG, Frankfurt/Main, Germany: Private Banking International, Strategic Business Development, Group Strategy / Corporate Development, Department Special Projects
Education and Training1994 -
1996
Second State Exam, Hanseatic Higher Regional Court, Hamburg, Germany
1994-
1995
Teaching Assistant, University of the Federal Armed Forces, Faculty of Public Law, Hamburg, Germany
1993 -
1994
LL.M. (Master of Laws), Cornell University, Ithaca, New York, USA
1987 -
1992
Law degree, First State Examination, Universities of Bonn, Kiel in Germany and Lausanne, Switzerland
Membership in Supervisory Boards to be established under applicable law
  • DWS Group GmbH Co. KGaA, Frankfurt/Main, Germany (listed) (Member of the Supervisory Board)
Membership in comparable domestic and foreign control bodies of commercial enterprises None

Susanne Wiegand

  • Nationality: German
  • Year of birth: 1972
  • Place of birth: Kassel, Germany
  • Profession: Supervisory Board member and investor
Susanne WiegandMember of the Supervisory Board since July 9, 2025, elected until the end of the General Shareholders’ Meeting 2028.
CommitteesMember of the Transformation and ESG Committee since July 9, 2025.
Specific expertise and experienceExecutive with over 20 years of experience in senior management roles in international publicly listed and family-owned companies in defence, mechanical engineering/construction and shipbuilding industries. She has a track record in the areas of growth strategies, IPOs, transformation and industrial markets.
Career2021 - 2024Chair of the Management Board, RENK Group AG, Augsburg, Germany
2018 - 2021CEO Division Electronic Solutions and member of the Defense Executive Board, Rheinmetall AG, Bremen/Düsseldorf, Germany
2007 - 2018Managing Director, NOBISKRUG GmbH, Rendsburg, Germany; German Naval Yards Kiel GmbH, Kiel, Germany; Lindenau Werft GmbH, Kiel, Germany
2005 - 2007Senior Vice President and Head of Strategy, Business Development and M&A, ThyssenKrupp Marine Systems GmbH, Hamburg, Germany
2001 - 2005Management Consultant with projects (amongst others) at Fresenius, Daimler and ThyssenKrupp in Germany
1999 - 2001Senior Vice President Business Development, T-Systems International GmbH, Frankfurt/Main, Germany
1996 - 1999Management Consultant, Unit Manager Chemical/Pharmaceutical Industry, Diebold Deutschland GmbH, Eschborn, Germany

Education and Training
1991 - 1996Master of Business Administration, Goethe University, Frankfurt/Main, Germany
Membership in Supervisory Boards to be established under applicable law
  • BWI GmbH, Meckenheim, Germany (not listed) (Member of the Supervisory Board)
  • Volkswagen AG, Wolfsburg, Germany (listed) (Member of the Supervisory Board)
Membership in comparable domestic and foreign control bodies of commercial enterprisesNone
By way of a resolution dated October 26, 2023, the Supervisory Board has adopted the following Rules of Procedure: