In the Carboniferous Region of Coahuila, the MIMOSA Unit generates mainly metallurgical coal for the production of steel in AHMSA. Annually it extracts about 4 million metric tons of coal all one.
The area, which has the main municipality of Múzquiz and Sabinas, is the main source of coking mineral supply for AHMSA since 1944, when the company produced the first pig iron in its Blast Furnace 1, installed in Monclova.
Since then, a constant concern has been to operate underground and open pit mines using cutting-edge technologies at the time for personnel protection and achieve high productivity. For example, in 1952, AHMSA operated the first mechanized mine, "La Sauceda".
At the end of the decade of the 60s, MIMOSA was born with more modern mines and state-of-the-art technology, applying the long front system. Owned by Grupo Acerero del Norte since 1991, the company forms part of the AHMSA structure since 1995.
