The General Mining and Metallurgical Company SA (Greek: Γενική Μεταλλευτική και Μεταλλουργική Α.Ε.
It has mines in the region of Euboea, Neo Kokkino, Kastoria and Servia.
LARCO was founded in 1963 by Prodromos Bodosakis-Athanasiadis, with headquarters in Marousi in Athens.
The mines of Euboea were fully exploited in 1969 and in 1972 two new electric furnaces were added.
In 1977, Europe's first long-distance conveyor belt, with a length of 7.5 km, was installed to reduce the cost of transporting the ore by truck.