"Being a player in the reduction of environmental impacts".

is part of our purpose


Our choice of an eco-designed website embodies our desire to reduce our digital impact.

Together we can reduce the environmental impact of our online presence, and contribute to the preservation of our planet.

Discover our website, a reflection of our commitment to everyone!

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About us

A family-owned group specializing in the processing and recovery of materials

The Groupe CB, nearly
130 years of existence
.

To us, the company is like a tree: drawing on its roots set in a generous soil, reaching the sky, and renewing itself each season.

Our tree, the CB Group, is a family business specializing in the transformation and enhancement of materials. Our roots, nearly 130 years of experience. Our generous land, the territories in which we are established and involved.

The skills and competencies of our teams enable us to bring all this to fruition, to undertake and move forward with confidence and daring:
Development is life!

Our sectors

The CB Group is organized around four business lines to meet all types of needs. We are committed to designing and producing materials and solutions for construction, public works, mineral industries, and high-temperature applications.

From the extraction and recovery of aggregates to the processing of fine minerals and low-carbon solutions, including refractory materials and wooden structures, we combine technical expertise, innovation, and sustainable performance to serve our customers and their regions.

Extraction and production of natural and recycled aggregates for the building and public works industries construction, and public works.

Development of innovative refractory solutions for extremely high-temperature environments worldwide.

Design, processing, and promotion of fine minerals and low-carbon solutions for construction, industry, and agri-food.

Manufacture of laminated wood frames and structures for sustainable and high-performance buildings.

volta transport

Sustainable solutions to facilitate your logistics

The CB Group's logistics department, represented by Volta Transport, supports the group's four divisions and numerous partners by organizing customized, sustainable, and agile multimodal solutions to optimize and decarbonize their flows.

OUR COMMITMENTS

Preservation
Respect
Innovation
Partnership

A willingness to commit with the relevant communities and the local authorities

Our commitment to sustainable development is reflected in our determination to control the impact of our industrial activity on the environment.
From the nature of our activities and our willingness to be engaged,  we forge lasting partnerships with local and regional communities and authorities.

We preserve and enhance biodiversity on all Group sites. Consumers of natural resources, we invest in innovative technologies that emit fewer greenhouse gases.
We contribute to the preservation of our heritage and the social integration of the most vulnerable. As a regional player, we encourage and participate in cultural, sporting and economic initiatives. 

Our site uses less energy.

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This site has been designed to limit CO2 emissions and impact on the planet.

OUR LOCATIONS

A committed French group
in its country, in Europe and worldwide.

When you join the Groupe CB, you join a committed ecosystem that actively contributes to preserving our planet.

We offer an environment that promotes entrepreneurial spirit and well-being at work, where innovation and responsibility are core values.

50

Industrial facilities
and sales offices
worldwide

650

Group employees

25%

Revenue sourced from International market

6%

Of the workforce on block release

6000

Record accident-free days at CB2M's Ferques site

128

years of history

OUR NEWS

An overview of our actions

2,000 tons of TRB refractories installed on ArcelorMittal Dunkirk's HF4

In April 2025, ArcelorMittal completed the relining of Dunkirk's blast furnace no. 4.
The CB Group's refractory business, TRB, supplied and installed over 2,000 tonnes of materials produced in its Nesles workshops. These interventions reinforce the safety and sustainability of a strategic site for the European steel industry.

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Unique Visits to the Ferques Quarry

Hop on the bus and explore France's largest open-air quarry on a single site.
A spectacular industrial tourism experience, between mineral landscapes, local know-how and preserved biodiversity.

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Groupe CB celebrates 30 years of landscape planning

To mark the 30th anniversary of the Landscape Plan, Groupe CB has teamed up with the Parc Naturel Régional to introduce visitors to the Marquise quarry basin through exclusive tours and a variety of activities. Dive into the heart of Les Carrières du Boulonnais, France's largest open-cast quarry on a single site, and explore the Park...
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