Imerys, Transform to perform

Executive Committee


The Group

Executive Committee

Since 2005, the Executive Management is assisted by an Executive Committee comprised of the Group’s main line and support managers to assist him in the general management of the Group.


The Executive Committee, under the control and responsibility of the Chief Executive Officer, is primarily in charge of:

  • Implementing strategy and all the measures determined by the Board of Directors;
  • Drawing up and closing the Group’s budget and, at the request of the Chairman and Chief Executive Officer, attending its presentation and, as needed, for each of its members, reporting on the performance of the measures taken under their scope of responsibility to the Board of Directors or its Specialized Committees;
  • Monitoring the operating activities of each business group and ensuring, by defining any necessary corrective measures, that they comply with their budgets and carry out the action plans approved by the Chief Executive Officer;
  • Defining and monitoring the Group’s performance improvement goals in terms of the protection and safety of individuals on their workplace and defining any corrective measures;
  • Defining Group-wide policies and actions (sustainable development, including environment, health & safety, internal communications, internal control and risk management, innovation and research & technology, purchasing) and overseeing their rollout;
  • Fostering the sharing and dissemination of best practices in all areas between the four business groups;
  • Giving opinions and recommendations on all projects, operations or measures that may be submitted to it by the Executive Management, particularly with a view to their subsequent presentation to the Board of Directors or its specialized Committees.


The Executive Committee meets as often as the interests of the Group require or at the request of the Executive Management. It met 11 times in 2016.


The Executive Committee has been comprised, in addition to the Chief Executive Officer, Gilles Michel, of the Group’s main line and corporate department managers.

  • Chief Executive Officer

    See presentation
    photo du collaborateur
    Keijzer Conrad  - Dutch

    Appointed as Chief Executive Officer on May 4, 2018

  • Vice-President. Strategy, M&A and International Development. Supervision of Oilfields Solutions divisions.

    See presentation
    photo du collaborateur
    Olivier Hautin - French

    He 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, M&A and International Development while maintaining the supervision of the Oilfields Solutions division.

  • Vice-President. Supervision of Performance Additives, Filtration, Metallurgy and Carbonates divisions

    See presentation
    photo du collaborateur
    Daniel Moncino - American

    He joined Imerys in 2002 after beginning his career in Europe and in the USA with Siemens and then held several positions with BASF and Schlumberger. He was successively in charge of a business unit, a division and then of the Performance & Filtration Minerals business group. Since 2015, in addition to the Performance Additives and Filtration divisions, he also been overseeing the Metallurgy and Carbonates divisions.

  • Vice-President. Supervision of Roofing, Kaolin, Ceramics, Graphite & Carbone divisions

    See presentation
    photo du collaborateur
    Frédéric Beucher - French

    He joined Imerys in 2003 after several years in investment banking, first at Société Générale in France and Spain and then at Rothschild & Cie in Paris. Started with Imerys as Head of Strategy and Development, he was then in charge of the Minerals for Ceramics division. Since July 1, 2013, he has also been overseeing the roofing division and now as well the Kaolin and Graphite & Carbone divisions.

  • Vice-President. Supervision of Fused Minerals, Monolithic Refractories and Aluminates divisions

    See presentation
    photo du collaborateur
    Alessandro Dazza - Italian

    He joined Imerys in 2000 upon the acquisition of Treibacher Schleifmittel after working for a chemical company in Italy and then in Germany. He was then successively in charge of a business unit and then of the whole Fused Minerals division. He also oversees the Monolithic Refractories (Calderys) and Aluminates divisions as well.

  • Chief Financial Officer

    See presentation
    photo du collaborateur
    Olivier Pirotte - Belgian

    He joined Imerys in 2015 as Chief Financial Officer of the Group. He began his career with Arthur Andersen where he held various management positions before joining Groupe Bruxelles Lambert in 1995 where he held various positions including Director of Investments, then Chief Financial Officer.

  • Group General Counsel & Company Secretary

    See presentation
    photo du collaborateur
    Denis Musson - French

    He joined Imerys in 1999 as General Counsel and Secretary of the Board. His career was previously with Pechiney, where he started in the Group’s Legal Department before taking over its Corporate Department. Since the end of 2016, he also has been heading the Group’s Corporate Social Responsibility department.

  • Chief Innovation Officer

    See presentation
    photo du collaborateur
    Thierry Materne - Belgian

    He 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).

  • Chief Industrial Officer

    See presentation
    photo du collaborateur
    Jean-François Claver - French

    He 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 Human Resources Officer

    See presentation
    photo du collaborateur
    Vincent Lecerf - French

    He 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.

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.