Thomas Kummer has a bachelor’s degree in chemical production and management and can look back on more than 20 years of management experience in the oleochemical industry. In the course of his career, he has continuously developed his technical and managerial skills through specific development programs. He has held various management positions, including Head of Production and Chief Operation Officer (COO) for more than ten years.
Since 1st of May 2024, Thomas Kummer has been appointed as CEO and is responsible for setting the strategic direction, managing the overall performance, and representing the company to internal and external stakeholders along with his board colleagues.
Kathleen Wendrich studied business administration, specializing in human resources management, and holds a Master of Arts in Human Resources Development. She has more than 18 years of experience in human resources with a strong focus on organizational development and corporate culture. She has held management positions in HR since 2016 – initially as Head of Human Resources and since 2024 as Director People & Culture. In this role, she is responsible for the areas of People & Culture, Administration and Marketing.
Mark Tuchen studied Business Administration, specializing in Finance & Accounting, before starting his professional career in 2000 in a Big 4 audit and consulting company. For more than a decade Mark served a wide range of customers throughout a broad variety of Industries and during this time successfully passed the exams as Tax Consultant and Certified Public Accountant. In 2013 Mark became Chief Financial Officer of todays’ IOI Oleo GmbH, Germany, where he took over responsibility for all Finance & Legal related matters, IT and later Procurement as well as the responsibility for our Business Units Technical Applications & Basic Oleo.
Mark Tuchen studied Business Administration, specializing in Finance & Accounting, before starting his professional career in 2000 in a Big 4 audit and consulting company. For more than a decade Mark served a wide range of customers throughout a broad variety of Industries and during this time successfully passed the exams as Tax Consultant and Certified Public Accountant. In 2013 Mark became Chief Financial Officer of todays’ IOI Oleo GmbH, Germany, where he took over responsibility for all Finance & Legal related matters, IT and later Procurement as well as the responsibility for our Business Units Technical Applications & Basic Oleo.
Dr. Sebastian Reyer is a chemist and holds a PhD in organic and industrial chemistry. He has been working in the chemical industry in manufacturing and R&D for more than 15 years in various positions. Since 2017, he has been in a management position in research and development. Since 2024 he is the Director of Science & Innovation and responsible for research and development, application development, our pilot plant facilities, analytics and business development for functional excipients.




