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Please note that our address has recently been changed at the initiative of our city, Couëron.

We specify that it is a simple renaming of our street (quay) and that we haven’t moved. Our postal box has been changed also at the same time. We thank you to take into account from now the following address: NGK BERYLCO FRANCE - 103 quai Jean Pierre Fougerat - CS 20017 - 44220 COUERON - FRANCE

NGK Berylco France bears its expertise and witness  


News & Events

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Our Copper alloys range is expanding!

In addition to our Beryllium Copper strips, we can now  propose our high performance Copper Nickel Tin alloys, in strip: GMX 96 & GMX 215. These 2 new alloys give a combination of high mechanical resistance, high stress relaxation, excellent thermal stability and high heat resistance. They are the ideal complement to our Beryllium Copper alloys.  

To learn more, you can acces our GMX brochure in English or in French.

We remain at your disposal for samples and/or trials. T





CDA Standards






Main Advantage




Connectors, Switches, Sockets, Ground terminals, Motor brushes, Jacks, EMI shields, Watch Gears

Connectors, Switches, Sockets, Spring washers, Motor brushes, Jacks, Clips, Thermostats

In a desire for sustainable development and resource optimization, we are offering our services for buying back your waste: clean and sorted out production scrap and/or non-used raw materials in Copper-Beryllium or Copper-Nickel-Tin alloys. Our Copper alloys are infinitely recyclable and therefore contribute to a circular economy which is beneficial to the environment. Recycling enables to save natural resources (ores), but also the energy needed for the production of primary metal (up to 75% less). Think about it and don’t hesitate to consult us!

The whole NGK BERYLCO team whishes you a happy new year 2023!


NGK Berylco France certified ISO 45001!


NGK Berylco France teams have passed their compliance audit according to ISO 45001, the voluntary international standard on health and safety at work published in March 2018.

Download our ISO 45001: 2018 certificate

This fourth certification obtained by NGK BERYLCO France testifies to our determination to improve employee safety, reduce risks in the workplace and create better and safer working conditions.

Customer satisfaction (ISO 9001, EN 9100 for aeronautics), human health and safety (ISO 45001) and preservation of the environment (ISO 14001) are key issues for NGK Berylco France and the NGK Insulators Ltd. group.

New Copper Nickel Tin alloys GMX96 & GMX215


Recovery of your production scraps


50 years of expertise in copper-beryllium alloys!


We continuously adapt our processes to meet the growing demands of our customers. We are proud to contribute to the tomorrow’s technological challenges!

Our site of Couëron near Nantes in France celebrates its 50th anniversary! Half a century of expertise in the transformation of strips, rods and wires in copper-beryllium alloys.

Our Berylco and GMX alloys combine a unique set of properties, essential to the future digital society and to the carbon neutrality by 2050.

Our products are little known to the general public but essential to the ecological and digital transition. This is the message conveyed by our mascot Kuroko, a little character responsible for discreetly assisting the actors in the Japanese Kabuki theater… Invisible but nevertheless essential…


We are very honored to have shared the best practices deployed in the beryllium sector during the conference on occupational cancers organized as part of the French Presidency of the European Union on March 7 and 8, 2022 in Paris.

Our copper-beryllium alloys can present a risk by inhalation of fine particles, especially for the most abrasive operations. Assessing risks and exposures, controlling the emission and dispersion of dust through processes and hygiene and cleaning measures are key factors in prevention.

Beyond our own production sites, we are available to users of our products to inform and support them on regulations and best practices.

We wish you the best for the New Year 2023!

Thanks to our alloys with unique properties, we are happy and proud to support the development of key technologies for carbon neutrality by 2050. We look forward to meeting new challenges with you!

NGK in videos


Discover the scope of NGK activities through videos :

          Youtube Channel NGK BERYLCO

          Youtube Channel NGK INSULATORS


Carbon Neutrality and Digital Society


Heart of our businesses and innovations !