Mersen — Report Publication Announcement 2012

Sep 19, 2012

Paris, September 19, 2012

Mersen Electronics Investor Day

Today, Mersen is organizing a Investor Day for the financial community to explore issues in the electronics market, which offers the Group major potential.

Mersen is involved in the electronics market at two levels:

• In the semiconductor fab process, with increasingly sophisticated graphite products.
• In power electronics components, with unique bundling capabilities strengthened by the acquisition of Eldre early this year.

Concerning the event, Luc Themelin, Chairman of the Mersen Management Board, said: "we're in an increasingly power-hungry world, which is confronting important new issues that pose serious technical challenges, such as power conversion and transmission, and the need for greater energy efficiency. Mersen is assertively addressing these issues with high-value added products in its two core businesses, materials and electricity."

Mersen is committed to outperforming its electronics markets, by driving growth of more than 10% a year on average over the next five years, including faster momentum as from 2015.

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The presentations are available on www.mersen.com.

Paris, September 19, 2012

About Mersen

A global expert in materials and solutions for extreme environments as well as in the safety and reliability of electrical equipment, Mersen designs innovative solutions to address its clients' specific needs to enable them to optimize their manufacturing process in sectors such as energy, transportation, electronics, chemical, pharmaceutical and process industries.

The Group is listed on NYSE Euronext Paris – Compartment B

Visit our website www.mersen.com

Analyst and Investor Contact Press Contact Véronique Boca Vilizara Lazarova VP Financial Communication Mersen Publicis Consultants Tel. + 33 (0)1 46 91 54 40 Tél. +33 (0)1 44 82 46 34

Email : dri@mersen.com Email: vilizara.lazarova@consultants.publicis.fr