Jebsen & Jessen Group has named Stephan Kirsch as CEO of its GMA Garnet Group, effective Q4 2025. His appointment marks a new chapter focused on global growth, operational strength, innovation, and sustainability.
Kirsch brings extensive leadership experience from senior roles at FLSmidth, Metso, Metso Outotec, ThyssenKrupp, Hofmann Engineering, and KHD Humboldt Wedag. He has served on GMA’s Advisory Board for over three years, giving him deep insight into the business.
A dual German-Australian citizen, Kirsch holds a Master’s in Mining & Mineral Processing and a postgraduate degree in Waste Management & Recycling from RWTH Aachen University.
Heinrich Jessen, Chairman of Jebsen & Jessen Group, said: “Stephan’s experience and long-standing connection with GMA make him ideally suited to lead its next phase of growth. We are confident he will strengthen our global presence and deliver long-term value for customers and stakeholders.”
Kirsch will focus on expanding operations, driving R&D, and accelerating innovation. Key growth markets include the Americas, alongside Asia Pacific, Europe, and the Middle East.
GMA is a leading global supplier of industrial garnet, operating mines, processing plants, recycling facilities, and distribution networks in over 100 countries. The company will continue expanding production, strengthening supply chains, and advancing sustainable practices.
Kirsch said: “It is a privilege to lead GMA at this pivotal stage. Together, we will accelerate innovation, grow in key markets, and deliver sustainable value to customers and communities.”
