MANTEX - Key Persons


Mr. Gustav Melin

Job Titles:
  • Member of the Board
Born 1962. Member since 2022. Education: Agronomist. Bioenergy expert and Business Developer at BKtech Group Other previous positions: CEO of Svebio (Swedish Bioenergy Association) and board member of Bioenergy Europe in Brussels, where he was also President, Business Area Manager at Talloil AB and CEO at Agrobränsle AB.

Mr. Juha Rantanen - CTO

Job Titles:
  • Chief Technical Officer
Born 1962. Appointed in October 2021. Master of Science, Uppsala University.

Mr. Leif Adelöw

Job Titles:
  • Chief Scientific Officer
Born 1970. Appointed in August 2023. Master of Science, Uppsala University.

Mr. Max Gerger - CEO

Job Titles:
  • CEO
  • Sales

Mr. Per Grunewald

Job Titles:
  • Member of the Board
Born 1954. Member since 2016 and former Chairman. Education: MSc in Engineering from Chalmers University of Technology. Chairman of Calormet AB and member of the board in Sekab, Pegroco Invest and Emphco. Per has 16 years within Electrolux Group, latest as Senior VP and then CEO of e2Home AB. Former Senior Investment Manager at Bure Equity AB and after this he became a co-founder of Pegroco Invest where he was almost for 14 years. Per received the Mannerfelt Price in 2003 for pioneering the integration of environment into business operations. Per is an elected member of IVA, Royal Academy of Engineering Science.

Mr. Ulf Gustavsson - Chairman

Job Titles:
  • Chairman
Born 1972. Chairman since 2024 and member since 2023. Education: Bachelor of Science in Economics and Military Officer's degree.

Mrs. Cathrin Lundberg

Job Titles:
  • Member of the Board
Born 1968. Member since 2024. Master of Laws, Uppsala University and also trained in German civil law and EC law. Long experience as both a company lawyer and from other leading positions at companies in Sweden as well as internationally, among others Ericsson, Borealis and Inter IKEA group, and general counsel in the Nordics at Zeppelin. Currently running her own company Lundberg & Associates AB, where she works as general counsel for Swedish and international companies.

Mrs. Maria Söderström - CFO

Job Titles:
  • CFO
  • CFO ( Interim )
Born 1968 and appointed in July 2024. B.Sc. in Human Resource Development and Labour Relations from Uppsala University, also a Law degree from Stockholm University and Business Economic Studies. Maria has held several similar roles as CFO, e.g. CFO at Semper Nordic, where she was also a member of the board, and most recently interim CFO at Switch Nordic Green AB.