Altos Hornos de Mexico is the largest integrated steel plant in Mexico. It has corporate offices in Monclova, Coahuila, in the center of the Mexican state of Coahuila, 155 miles from the United States border.

In an area of nearly 3,000 acres operates two steelworks plants. AHMSA's operations start with the extraction of coal and iron ore and finishes with the manufacture of high value-added steel products. Currently, AHMSA operates at an annual production rate of 3.5 million metric tons of liquid steel, and it has a workforce of 19,000 people, including its subsidiary companies.

It is a national leader in the production and commercialization of flat steel products including Hot Rolled Coil, Wide Plate, Cold Rolled Coil, Tinplate and Tin-Free Steel. It also produces non-flat steel products like Heavy Shapes. The Company has its own coal mines in Palau, located 70 miles from Monclova. Once extracted, the washed coal is shipped by railroad to AHMSA's coke plants. Altos Hornos de México S.A. de C.V. (AHMSA) is one of Mexico’s largest steel producers and is the largest integrated steel producer in Latin America. AHMSA is based in Monclova, Coahuila and produces a variety of steel products including flat steel, long steel, and specialty steel products. AHMSA was founded in 1950 and has since become a leader in the steel industry in Mexico and Latin America.

AHMSA’s integrated steel production process begins with the mining and processing of iron ore at its mines in Coahuila. The ore is then transported to AHMSA’s steel plant in Monclova where it is smelted in blast furnaces to produce pig iron. The pig iron is then processed in AHMSA’s steel rolling mills to produce a variety of flat and long steel products. AHMSA also produces specialty steel products such as high-strength steel, tool steel, and stainless steel. AHMSA is committed to providing high-quality steel products to its customers and is continuously investing in research and development to improve its product quality and production efficiency. The company is also committed to environmental sustainability and has implemented several initiatives to reduce its environmental impact.

AHMSA is one of Mexico’s largest steel producers and is a leader in the steel industry in Latin America. The company’s integrated steel production process, commitment to product quality, and commitment to environmental sustainability make it a reliable supplier of steel products to its customers.