Manufacturing of by-product of blast furnace to de-carbonized sustainable raw material for glassmakers by circular eco.

Type Company
Founded 1981
Company Size 10
Member Type
Founders Calumite Group
Headquarters 4149, Luxembourg
Social network


Manufacturing of granulated blast furnace slag as by product of steelmakers by physical treatment without use either water nor chemicals. End product is sold under Calumite(r) tradename to glassmakers in container, float or fiberglas branches. This is circular economy business. Benefit for glassmakers are following : decarbonised raw material, energy saving of melting process, increase of quality of glass, improvement of pull, increase of lifetime of furnace.
Headquarters 4149, Luxembourg

SDG’s of application

The Sustainable Development Goals are a call to action to end poverty, protect the planet and ensure peace and prosperity everywhere.
Clean water and sanitation
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Affordable and clean energy
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Industry, innovation and infrastructure
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SDG 11
Sustainable cities and communities
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SDG 12
Responsible consumption and production
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