The EPMF Board


Wouter Ghyoot, Umicore NV/SA, Belgium

Dr. ir. Wouter Ghyoot is Vice-President of Government Affairs at Umicore. He holds a PhD in Environmental Engineering and held various positions within Umicore including regulatory affairs, product stewardship, commercial, R&D and sustainability before joining the Government Affairs department of Umicore since 2022.



Marius Vigener, Heraeus Precious Metals GmbH & Co. KG, Germany

Mr. Vigener is heading the Recycling, Chemical Product and Catalyst Business at Heraeus Precious Metals since 2019. Previously he held various positions at Heraeus and in the PV and automobile industry. He has a university degree in industrial engineering and management.



Clémence Siret, SAFT SAS, France

Ms. Siret is the Corporate Eco-Design & REACH Manager ensuring that the Saft products meet the eco-design requirements of both customers and authorities alike. Previously, she worked at the Research Centres of both Saft and Alcatel Alstom. She holds an engineering degree in Electrochemistry and Materials.


Board Member

Francisco Boo, Metalor Technologies SA , Switzerland

Mr. Boo is Regulatory Affairs Counsel at Metalor. He has worked on Regulatory Affairs issues for the past 15 years. He holds a Masters in Chemical & Biological Engineering from the Swiss Institute of Technology (EPFL).


Board Member

Stephen James, Johnson Matthey Plc, United Kingdom

Mr. James is both a chartered chemical engineer and health and safety management professional, with over 30 years’ experience in the chemical industry and consultancy. His experience has ranged across chlor-alkali, petrochemicals, polymers and metals. He has been with Johnson Matthey since 2020, leading EHS for Battery Materials, Pharmaceuticals and currently PGM Services businesses globally.


Board Member

Jörn Mühlenfeld, Aurubis AG, Germany

Dr. Mühlenfeld is the Environmental Manager and REACH Team Leader. His focus is the coordination of the management system for REACH / chemicals management and assessment, as well as life cycle analysis (LCA) / Environmental Footprint. He holds a PhD in inorganic chemistry from the University of Hanover.


Board Member

Philipp Reisert, C.Hafner GmbH & Co. KG, Germany

Dr. Reisert is Co-CEO of C. Hafner GmbH where he represents the 5th generation of this family-owned company. He is also Chairman of the German association for precious metals. He holds both an MBA and a PhD in Production Controlling from St. Gallen University. Dr. Reisert is active in various boards.


Board Member

York A. Tetzlaff, Fachvereinigung Edelmetalle (FVEM), Germany

Mr. Tetzlaff is Managing Director of the German Precious Metals Federation (FVEM). Previously, he was Head of the Liaison Office of Bavarian Industry Association and later Head of the European Office of German Insurance Association, both based in Brussels. He is an attorney and holds degrees in law and economics from the Universities of Munich and Bayreuth.