Mersen: Change to the Board of Directors

PRESS RELEASE

Mersen: change to the Board of Directors

Paris, January 27, 2026 – Mersen (Euronext FR0000039620 – MRN), a global expert in electrical power and advanced materials, has announced a change to its Board of Directors.

Mrs Emmanuelle Picard, a board member since 2023, has informed the Board of her decision to resign for personal reasons. The Board of Directors has decided to appoint, as of today, Mrs Florence Lambert to replace Mrs Emmanuelle Picard for the remainder of her’s term, which runs through the end of the General Meeting to be held in 2027. Currently Chief Executive Officer of Genvia, a leader in high-temperature electrolysis and a key player in the energy transition, Mrs Florence Lambert will bring to the Board her extensive experience in the field of renewable energies, a key market for Mersen, as well as her expertise in innovation and R&D.

The Board of Directors wishes to thank Mrs Emmanuelle Picard sincerely for her contributions, in particular for her work on the Audit and Accounts Committee, as well as for her role as Director in charge of coordination on strategic matters.

In accordance with the criteria set out in the AFEP-MEDEF Code and reflected in Mersen’s Board of Directors’ Internal Regulations, the Board has deemed Mrs Florence Lambert to be independent. Her appointment will be submitted for ratification at the next General Meeting.

Biography:

Florence Lambert (52) began her career in 2000 at the French Atomic Energy and Alternative Energies Commission (CEA) where she held various positions. She participated in the creation of the French National Institute for Solar Energy (INES) of the CEA, before joining it in 2006. In 2009, she became Head of the Electricity and Hydrogen for Transportation Department. From 2012 to 2020, she was head of the CEA-LITEN (Innovation Laboratory for New Energy Technologies and Nanomaterials). Since 2021, she has been Chief Executive Officer of Genvia, a company that aims to develop and deploy industrial technology for the production of decarbonized hydrogen. She is also an independant board member of Arkema.

ABOUT MERSEN

Mersen is a global expert in electrical power and advanced materials for high-tech industries. With more than 50 industrial sites and 21 R&D centers in 33 countries around the world, Mersen develops custom-built solutions and delivers key products for clients in order to meet the new technological challenges shaping tomorrow’s world. For over 130 years, Mersen’s teams have focused tirelessly on innovation to accompany its clients and meet their needs. Be it in solar power, electronics, electric vehicles, aerospace or other sectors, wherever technology is progressing, you will always find a bit of Mersen. We work to constantly contribute to progress, striving daily to improve people’s lives and protect the planet. This corporate commitment has been recognized by external rating agencies, EcoVadis (Silver Medal) and MSCI (A rating).

MERSEN IS LISTED ON EURONEXT PARIS – COMPARTMENT B

INVESTOR AND ANALYST CONTACT
Véronique Boca
Mersen
Tel.: +33 (0)1 46 91 54 40
Email: dri@mersen.com

MEDIA CONTACT
Guillaume Maujean/Stephan Bürklin
Brunswick
Tel.: +33 (0)6 33 06 55 93
Email: mersen@brunswickgroup.com