Imerys, Transform to perform
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Executive Committee

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The Group

Executive Committee

Since May 4, 2018, the Executive Management is carried out by Conrad Keijzer, CEO, assisted by an Executive Committee comprised of the Group’s main operational and functional managers to assist him in the general management of the Group.

Mission

The Executive Committee is an informative and advisory body. Its mission is to ensure that the organization, resources and general management of the Group’s business, as implemented by each member within their individual area of responsibility and under the authority of the Chief Executive Officer, are adapted to the strategy adopted by the Board of Directors and in accordance with fixed policies and objectives.

The key aspects of this mission are:

  • to review the strategies and budgets to the Strategic Committee and the Board of Directors, ensure their implementation, supervise their application, and make any adjustments required to ensure compliance with them;
  • to define key targets for improving overall Group performance (particularly in terms of operational, financial, employment, social and environmental issues, as well as the occupational health and safety of employees), monitor those targets and implement any corrective measures that may prove necessary;
  • to review the suitability, development and mobility of Group management resources in accordance with its current and future needs, and with key planned organizational changes;
  • to adopt, manage deployment and supervise the implementation of those cross-functional and/or transformational policies and actions that apply to all parts of the Group (Innovation, CSR, Human Resources, Communication, Operational Excellence, Geology & Mines, Health & Safety, Legal & Regulatory Compliance, Internal Control & Risk Management, Information Systems and Internal Efficiency), and in a more general sense, all plans, operations and/or measures that are subject to the scrutiny of the Executive Committee by the Chief Executive Officer, either at his initiative or when proposed by other members.

Functioning

The Executive Committee meets in principle once a month and as often as the interests of the Group require it. It met 11 times in 2017.

Composition

The Executive Committee is comprised, in addition to the Chief Executive Officer, Conrad Keijzer, of the Group’s main operational and functional managers.

  • Chief Executive Officer

    See presentation
    photo du collaborateur
    Keijzer Conrad  - Dutch

    Appointed as Chief Executive Officer on May 4, 2018, Conrad joined Imerys in March, 2018 after having served as a member of the Board of Management at AkzoNobel NV and as CEO of its Performance Coatings business. Prior, he held numerous global leadership positions across AkzoNobel’s businesses and he was based in the United States, Mexico, Spain, Germany and the Netherlands. He has completed the Advanced Management Program at Harvard Business School and has a Master (MSc.) degree in Technical Management Science and Industrial Engineering from Twente University of Technology.

  • Chief Financial Officer

    See presentation
    photo du collaborateur
    Olivier Pirotte - Belgian

    Olivier joined Imerys on June 2015 as Chief Financial Officer of the Group. He previously was ExCom member of Groupe Bruxelles Lambert where he acted for nearly 20 years in various management positions including Head of Portfolio and Investments, then Chief Financial Officer. Before 1995, he held senior audit and business consultant responsibility with Arthur Andersen.

  • Senior Vice President Refractory Abrasives & Construction

    See presentation
    photo du collaborateur
    Philippe Bourg - French

    After having started his career in Occidental Industries, an engineering company, as Commercial Engineer where he was located in Europe and in Asia, Philippe joined Imerys in 1996. Initially, he held the positions of technical sales engineer and commercial director of various activities within the refractories business. In 2010, he was appointed Commercial Director of the ceramics business and in 2014 he was appointed Vice President & General Manager of the same business. Since 2017, Philippe has also supervised the kaolin activity in the UK. He is appointed Senior Vice President Refractory, Abrasives & Construction on November 26th 2018.

  • Senior Vice President High Temperature Solutions

    See presentation
    photo du collaborateur
    Michel Cornelissen - Belgian

    Michel started his career with Prayon Rupel Group (Chemicals) as Sales Engineer. Since joining Imerys in 1991, Michel has held positions of increasing responsibility in Sales & Marketing, Business Development and general management within a number of businesses. In 2014 he joined Imerys Refractory Minerals as General Manager North America. In 2017, Michel was appointed Vice President & General Manager of the Monolithic refractories division (Calderys). Michel is appointed Senior Vice President High Temperature Solutions on November 26th 2018.

  • Senior Vice President Performance Minerals EMEA

    See presentation
    photo du collaborateur
    Guillaume Delacroix - French

    Guillaume joined Imerys in 2004 as Strategy & Development Director after having started his career in London as an associate with the investment bank, Credit Suisse. He has since held general management roles of increasing responsibility, notably within the refractory mineral business. In 2016, he was appointed Vice-President & General Manager of the Metallurgy business. Guillaume is appointed Senior Vice President Performance Minerals EMEA on November 26th 2018.

  • Senior Vice President Performance Minerals APAC

    See presentation
    photo du collaborateur
    Cyril Giraud - French

    Prior to joining Imerys in 1998, Cyril started his career in Venture Capital. Within Imerys he has held various positions including Strategy & Development, Finance & Control and Project Management across numerous businesses in Europe and Asia. In 2014, Cyril was appointed General Manager for the Carbonates business in Europe, Middle East and Africa. Cyril is appointed Senior Vice President Performance Minerals APAC on November 26th 2018.

  • Senior Vice President Performance Minerals Americas

    See presentation
    photo du collaborateur
    Jim Murberger - American

    Jim joined Imerys in 1996 after beginning his career in the Food and Beverage industry where we held management positions with Frito-Lay and Kraft foods. Since joining Imerys he was held progressive positions in Operations, Supply Chain, Marketing, and general management. In 2016, he was appointed Vice-President & General Manager of the Filtration business. Jim is appointed Senior Vice President Performance Minerals Americas in November 26th 2018.

  • Group General Counsel

    See presentation
    photo du collaborateur
    Frédérique Berthier-Raymond - French

    After 10 years as a merger and acquisition (M&A) lawyer with Paris based law firms, notably with Latham & Watkins, Frédérique joined Imerys in 2008 as a M&A Legal Manager. In 2014 she was appointed Group Deputy General Counsel and is appointed Group General Counsel on November 26th 2018.

  • Chief Industrial Officer

    See presentation
    photo du collaborateur
    Jean-François Claver - French

    Jean-François joined Imerys in 2015 as Director of Mining and Industrial Operations and was appointed Group Chief Industrial Officer in October 2016. He previously held industrial management positions at Pechiney for nearly 16 years and then in several other international industrial groups (Alcan, Vallourec, Lafarge, Etex).

  • Chief Strategy Officer

    See presentation
    photo du collaborateur
    Olivier Hautin - French

    Olivier joined Imerys in 1995, after beginning his career in strategy consulting at Mars & Co. He was first in charge of Strategy & Development for the Group. After having held management positions in several business units and divisions, he was successively appointed head of various business groups: Pigments for Paper & Packaging, Minerals for Ceramics/Refractories/ Abrasives & Foundry, Energy Solutions & Specialties. In October 2016, he took also responsibility over Imerys Strategy,Commercial Excellence, M&A and International Development while maintaining the supervision of the Oilfields Solutions division.

  • Chief Human Resources Officer

    See presentation
    photo du collaborateur
    Vincent Lecerf - French

    Vincent joined Imerys as Group Chief Human Resources Officer in January 2017, after holding various human resources management positions for the groups: Valeo, Poclain Hydraulics, Rhodia and Norbert Dentressangle. He was since 2008 Director of Human Resources and member of the Managing Board of Tarkett.

  • Chief Innovation Officer

    See presentation
    photo du collaborateur
    Thierry Materne - Belgian

    Thierry joined Imerys in June 2016 as Group Chief Innovation Officer. Previously, he spent more than 11 years in research and development at Goodyear Tire & Rubber in Europe and the United States, before taking on responsibility for innovation at Dow Corning and then heading Sabic Innovative Plastics (formerly GE Plastics).


Imerys is based in over 50 countries and has 250 industrial sites.

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General Management

Since April 28, 2011, the company’s General Management has been under the responsibility of Gilles Michel, Chairman and CEO.

Board of Directors

The Board of Directors permanently monitors management of the company by the General Management. Find out about its responsibilities, operating method and composition.

Specialist committees

Three specialist committees with a consultative role have been created, under the responsibility of the Board of Directors. Find out about their role and composition.