Hariolf Kottmann

Clariant Executive Chairman Hariolf Kottmann wearing a suit


* ad interim – no longer than 24 months and therefore no longer than July 24, 2021

Hariolf Kottmann earned his PhD in organic chemistry at the University of Stuttgart in 1984. In 1985, he launched his career at the former Hoechst AG in Frankfurt where he held several key management positions across the company’s chemical divisions and functions. In 1996, he was appointed deputy head of the Basic Chemicals Division at Hoechst AG and took responsibility for the Inorganic Chemicals BU. In 1998, he joined Celanese Ltd in New Jersey (US) as a member of the Executive Committee and head of the Organic Chemicals BU. In April 2001, he was appointed as a member of the Executive Committee of SGL Carbon AG, where he was responsible for the Advanced Materials Division and the Eastern Europe and Asia regions until September 30, 2008. He was also in charge of the SGL Excellence, Technology, and Innovation corporate functions. From October 1, 2008 to October 16, 2018 he was CEO of Clariant. On October 16, 2018 he was elected as Chairman of the Board of Directors of Clariant Ltd. He has taken over the responsibility of the CEO as Executive Chairman on July 24, 2019 on an ad interim basis (no longer than 24 months and therefore no longer than July 24, 2021).



  • Plansee Holding AG, Austria
  • Röhm GmbH, Darmstadt, Germany
  • Member of the Board of Trustees of ETH Foundation Zurich
  • Member of the Board of Trustees of Aventis Foundation, Frankfurt
  • Chairman of the Board of Clariant Foundation

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