Mersen’s roots lay in a technology that was about to play a decisive role in the coming electrical revolution: carbon arc rods. These would illuminate public spaces and large department stores from the 1870s.

Following on from lighting and arc lamps, electric motors gave the group’s founders opportunities to develop on an industrial scale. Electricity was being produced by dynamos in which the current was transmitted by sliding contacts in the form of small brushes made of carbon : another major market that would underpin Mersen’s growth.

In addition, electrical networks also required distribution, control and protection equipment : Mersen rapidly became a leader in the electrical appliances industry.

The adventure began with two entrepreneurs, Maurice Lacombe and Fabius Henrion. Their companies - Le Carbone and the Compagnie Lorraine de Charbons - merged in 1937 to give rise to the Carbone Lorraine group. These two men are the true founders of Mersen.

Mersen: from 1889 to the present day - Discover the complete history of Mersen in video


2020 Aquisition of GAB Neumann, specialist in graphite and silicon carbide heat exchangers
2019 Acquisition of Advanced Graphite Materials Italy, specialist in graphite and carbon fiber insulation
2018 Aquisition of FTCap, designer and manufacturer of capacitors
2018 Acquisition of Idealec, designer and manufacturer of laminated bus bars
2018 Aquisition of the remaining capital of Cirprotec, specialist in lightning and overvoltage protection
2016 Joint venture, named Hatan Electrical Carbon, with Harbin Electric Carbon in China to serve the Chinese rail market
2015 ASP, Chinese specialists in overvoltage protection, is acquired
2014 Majority stake in Cirprotec, specialists in lightning and overvoltage protection (SPD)
2011 Eldre, specialists in laminated busbars, is acquired
Mersen 2010


2010 Positions are strengthened in solar energy through the purchase of a majority shareholding in Yantaï
2010 A majority shareholding in Boostec, a silicon carbide specialist, is acquired.
2009 The brushes for automobile and household electrical appliances division is sold.
2008 Calcarb, the world n°2 in rigid carbon felts is bought.
2008 The rail and motorcycle braking business is divested.
2008 Xianda and Mingrong Electrical Protection (MEP), the Group's first acquisitions in China, are purchased.
2007 Chongqing plant, the Group's first manufacturing facility in China, is inaugurated.
2006 Positions are strengthened in power electronics through the acquisition of R-Theta.
2005 The Magnets division for automobile applications is sold.
2005 First solar and wind energy-related sales are recorded.
1999 Gould-Shawmut group's electrical protection division is acquired.
1998 Unit specialized in cooling systems is set up.
1996 Pechiney exits the share capital.
1991 Stackpole's (United States) electrical and high temperature applications assets are acquired.
1988 Pechiney moves above the 50% ownership mark. The industrial seal business is transferred to Carbone Lorraine
1985 Ferraz is acquired.
1961 The Amiens plant is built to manufacture carbon brushes for electric motors.
1953 The chemical engineering business is started up in Pagny sur Moselle
1950 Le Carbone Lorraine takes over the worldwide distribution of products for Ferraz, an industrial fuse manufacturer based in Lyon
Mersen CL 1937

"Le Carbone" and "Compagnie Lorraine de Charbons pour l'Électricité" merge to become:
Groupe Carbone Lorraine.



1927 Fabius Henrion became Compagnie Lorraine de Charbons pour l'Électricité 1906 First team is deployed in the United States.
1915 Pagny sur Moselle plant is destroyed during the First World War. 1897 First international subsidiary is set up in Germany.
1893 The Pagny sur Moselle plant is built. 1893 Graphitization process is discovered by a Group engineer.
1891 The Fabius Henrion plant is built (electric motors, dynamos and lamps). 1892 Le Carbone is founded in Paris and specializes in the manufacture of brushes for motors.
  1889 Set-up of Lacombe & Compagnie