CSN began producing cement in 2009, in the state of Rio de Janeiro. In 2015, the new cement plant, located in Arcos (MG), began operating, increasing the company’s installed capacity to 4.3 million tons.

The combination of blast furnace slag, resulting from the steelmaking process at the Presidente Vargas Plant, and clinker, produced at the limestone mine in Arcos, has transformed CSN into one of the most competitive cement players in the Brazil.

In 2021, CSN further expanded its operations in the segment by acquiring Elizabeth Cement. In 2022, it acquired LafargeHolcim. Five additional integrated cement production units were incorporated, as well as five mills in the Southeastern, Northeastern and Midwestern regions, in addition to high-quality limestone reserves, an alternative fuel production platform, 19 concrete units and six aggregate units. As a result, CSN has become the second largest cement producer in Brazil, with a capacity of 16.3 million tons per year (mtpa) and several Terminals and Distribution Centers strategically located throughout the country.

The synergy between the businesses and the integrated logistics of the plants and the strategically located distribution centers, make it possible to provide a differentiated service to the consumer market.


Map with CSN's cement distribution centers. They are located in Ribeirão Preto (SP), Capuava (SP), Mogi das Cruzes (SP), São José dos Campos (SP), Osasco (SP), Americana (SP), Volta Redonda (RJ), Queimados (RJ), Campo Grande (RJ), Arará (RJ), Itaboraí (RJ), Barra Mansa (RJ), and Arcos (MG).


Production Process – Cement


Extraction of raw material

The limestone mine located in Arcos (MG) is responsible for supplying limestone for the production of clinker.

Crushing, grinding and homogenization

The limestone is mixed with clay and the compound is reduced to very small particles to obtain “raw meal”

Clinker Burning

At the plant in Arcos (MG), the raw meal is introduced into a pre-heating system to save energy. It is then taken to the rotary kiln at 1450 º C to produce clinker.


The clinker is ground with slag from blast furnaces and other components (gypsum, limestone or pozolona, according to the type of Portland cement)


CSN Cement is stored temporarily in silos.

Packing Plant

The last step of the cement production process consists of packing for further distribution.

Last update on May 21, 2024.

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