The Compagnie des mines de Béthune, sometimes called the sometimes called the Compagnie de Grenay after the name of the concession, was a French coal mining company in the Pas-de-Calais that was established in 1851 and nationalized in 1946.
The company had 11 mines, each with one or more shafts for extraction of coal or ventilation.
It had a large facility for screening and washing raw coal, and for producing coke and other secondary products.
Wikipedia https://en.wikipedia.org/wiki/Compagnie_des_mines_de_Béthune
Address 19 Rue Maximilien de Robespierre, Grenay 62160, France
Coordinates 50°27'4.169" N 2°44'7.782" E