A sustainable approach to limestone filler production


For Carbocia, the extraction of mineral raw materials for use in industry and a rock-solid commitment to the environment and local fauna and flora go hand-in-hand

Protecting the local habitat, fauna and flora is an integral part of our mission

Before being processed, the micronized limestone is extracted from the quarries worked by the Carrières de la Vallée Heureuse in Rinxent (62) in the bassin de Marquise area. Once the limestone has been removed, the site is rehabilitated and the local flora and fauna returns. Rock walls, scree, backfill, terraces and marshy areas become the ideal habitat for local plants and wildlife as soon as pollutants and hazards have been removed. 

Large-scale habitat restoration following rock extraction

In order to have an impact in the longer-term, les Carrières de la Vallée Heureuse have signed up to a green charter featuring 80 good environmental practices. The company is also involved in a large-scale habitat and landscape restoration plan called the ‘plan de paysage du bassin carrier de Marquise’ which aims to rehabilitate and restore areas after mineral extraction is completed.

Limestone fillers: a sensible long-term approach to resource management for a greener, more sustainable business model 

Carbocia, the specialists in limestone fillers

In terms of particle size, uniformity and consistency, colour, flowability and chemical composition our micronized limestone fillers (ranging in size from a few microns to 4 mm) are perfectly suited to agricultural and industrial uses, meeting the specific standards and requirements of these sectors. We are able to operate on a continuous production basis and boast an integrated logistics infrastructure.

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We sell top-quality limestone fillers extracted from the Carrières de la Vallée Heureuse quarry in France’s Pas-de-Calais area. The intrinsic physical and chemical propertiesof our limestone and our micronization techniques are of major benefit to many industries. We shift our focus and adapt our products to keep pace with ongoing technological progress thanks to our partner CVH’s laboratory.

Our products

Our limestone has a content of over 96% CaCO3. This extremely high level allows us to meet the specifications of the industrial and agricultural sectors. The particle size of our fillers meets all relevant product requirements and complies with all standards and regulations currently in force. 

Animal Feed Find out more
Grouts & plasters Find out more
Fertilizers & agriculture Find out more
Carpet backing & rubber Find out more
Precast concrete/concrete Find out more
Asphalt Find out more
Sealants/roofing Find out more

Carbocia in pictures