The Société de Commentry, Fourchambault et Decazeville was an integrated coal, iron and steel company in France.

That year the Trezi foundry at Grossouvre was adapted to manufacturing iron using Welsh techniques, and delivered the first products in 1818.

In 1819 the leases of the Grossouvre site and factories were ceded to Boigues & Fils, iron merchant in Paris, and M. Labbé.

[2] In the crisis year of 1848 Charles de Wendel and Eugène Schneider saved the foundry at Fourchambault from bankruptcy by co-signing a huge bank loan.

[6] Thivrier defeated Stéphane Mony, the director of the Commentry, Fourchambault, and a former mayor and deputy.

60 failed these interviews, and 67 were told they needed certificates of good conduct from their new employers before they could work again at the mines.

Thivrier, now a deputy, spoke out against the interventions and provocations of the army and gendarmerie in support of the mining company.

[6] In 1891 the company acquired the Brassac (Puy-de-Dôme) iron ore mines and in 1892 absorbed the Société des forges et fonderies de l'Aveyron.

The Aveyron works, founded in 1826 and reorganized in 1868, was one of the first large integrated metallurgical factories in the country.