Our Executive Board

Dr Stephan Glander has been Chairman of the Executive Board of Biesterfeld SE since April 2023. A chemist with a PhD, he has many years’ experience in senior positions within the chemical industry. He previously served as CEO of BYK, a leading global supplier of speciality chemicals and a subsidiary of the Altana Group. Dr Glander was also a member of the Executive Management Committee there. Prior to that, he held various management positions at international chemical manufacturers and plastics processors such as Röchling, Quadrant (Mitsubishi Chemicals), Bayer AG and Franz Haniel & Cie. GmbH, one of the oldest family-owned companies in Germany.

After graduating with a degree in Business Administration, Kai Froböse spent over 17 years working for companies in the logistics, wind power and automotive sectors. He held senior positions primarily in the areas of finance, controlling, corporate development and procurement, and gained extensive experience in both international corporate structures and family-owned businesses. In July 2020, Kai Froböse joined Biesterfeld SE and has since been responsible for the duties of Chief Financial Officer.

Betti Heick, a graduate in business administration, brings more than 21 years’ experience within the Biesterfeld Group, where she held various management positions with increasing responsibility. Most recently, she served as Global Business Director, where she was responsible for the strategic development and international expansion of these business areas, with a strong focus on the life sciences and consumer sectors. In March 2026, Betti Heick was appointed to the Executive Board.

Peter Wilkes holds a degree in economics and a Master of Business Administration from the University of Chicago, USA. He has decades of global experience in senior management roles within the speciality chemicals industry. In 2015, Peter Wilkes joined the management board of Biesterfeld Spezialchemie and has very successfully further developed and internationalised the business division. Peter Wilkes has been a member of the Executive Board of Biesterfeld AG since January 2022. Since February 2024, he has also been taking on interim responsibility on the Executive Board for the Biesterfeld Plastic and Biesterfeld Performance Rubber business divisions.

Philip Chew studied polymer chemistry and holds a Master’s degree in international marketing management. He is a founding member of the GME Chemicals Group, which has been an integral part of the Biesterfeld Group since October 2021. He has many years’ experience in the management of speciality chemicals and the distribution of polymers, often in start-up roles across South-East Asia. He has been a member of the Biesterfeld Group’s Executive Board since October 2023.