Ersa | 99,9%
1 of 3CSN mineração² | 87,5%
Minérios Nacional | 99,9%
CSN Arcos – Mineração | 100%
2 of 3Tecar³ | Filial da CSN Mineração
3 of 3Clique nos ícones do mapa para ver nossas operações.
Notas: 1. Nenhuma operação da CSN está localizada em áreas de terras indígenas delimitadas.
2. Na CSN Mineração, somente a Casa de Pedra é a mina certificada pelo ISO 14.001.
3. A CSN Mineração detém o direito de exploração do Tecar. O período de arrendamento para operação do Tecar termina em 2047, mediante a realização de novos investimentos.
| MINERAÇÃO | Participação | |
|---|---|---|
| CSN Mineração² | MG | 87,5% | |
| Minérios Nacional | MG | 99,9% | |
| CSN Arcos - Mineração | MG | 100% | |
| ERSA | RO | 99,9% | |
| Tecar³ | RJ | Filial da CSN Mineração |
Notas: 1. Nenhuma operação da CSn está localizada em áreas de terras indígenas delimitadas. 2. Na CSN Mineração, somente a Casa de Pedra é a mina certificada pelo ISO 14.001. 3. A CSN Mineração detém o direito de exploração do Tecar. O período de arrendamento para operação do Tecar termina em 2047, mediante a realização de novos investimentos.
The CSN Mining, the main subsidiary of CSN in the sector, is the second largest exporter of iron ore in Brazil and sixth in the world. The high-quality assets of CSN Mining are located in the Iron Quadrangle, which notably include the Casa de Pedra mine, in Congonhas (MG).
Iron ore products for export are transported by MRS Logistic to the Port of Itaguaí (TECAR), in the state of Rio de Janeiro.
In addition, CSN has the Arcos, also in Minas Gerais, which produces three types of limestone, used as raw material for the manufacture of steel and for the production of clinker, the main input for cement operation.
In Rondônia, ERSA, a subsidiary of CSN, produces tin, a raw material used for tinplates in the packaging industry.
Average water reclaim ratio of
approximate volume of 0.65 m³
Improvement
in water use efficiency
in 2019 vs. 2018
effluent and drainage
control systems
monitoring stations
in the watercourses of site’s influence areas
Monitoring information are forwarded to FEAM (State Environment Foundation), SUPRAM-CM (Regional Environmental Administration - Metropolitan Region) and SUPRI (Superintendence of Priority Projects in the State of Minas Gerais).
At the circular economy concept, CSN Mineração invested in the construction of a magnetic concentration plant, which has boosted our operational efficiency, significantly decreasing the amount of tailings that would be stacked. Additionally, our tailing filtering plant has increased our water use efficiency, improving our water reclaim rate, which will reach 95% by 2023.
In Minas Gerais, we have 4,431.16 hectares of protected areas in CSN Mineração’s region, equivalent to three times the area occupied by our operations, divided into 1,847.00 hectares of legal reserve and RPPN (Private Natural Heritage Reserve) and 2,584.00 hectares of recovered and/or restored Atlantic Forest.
hectares of protected areas
to three times the area occupied by our operations
hectares of legal reserve and RPPN
hectares of recovered and/or restored Atlantic Forest
Unidades | Grupo | Tx. 2014 | Tx. 2015 | Tx. 2016 | Tx. 2017 | Tx. 2018 | Tx. 2019 | Tx. 2020 |
|---|---|---|---|---|---|---|---|---|
CMIN (mina) + MIPE + ERSA | MINERAÇÃO | 4,09 | 1,41 | 0,97 | 1,26 | 1,66 | 2,16 | 1,37 |
Between 2017 and 2019, we have invested nearly R$330 million to increase dam’s reliability, in decharacterization processes and dry filtering and stacking plants.
Learn more about dam management
Click here for more information about CSN Without Tailing Dams
To create a transparent dialog with the communities where we operate, clear doubts on our dam’s safety and stability and present how monitoring and inspection processes are developed, we created a visitor program at CSN Mineração focused on the population of Congonhas (MG), specially those who live close to the Casa de Pedra dam, students, local authorities and well as journalists and press representatives working in the region.
During the visits, which are organized upon demand, the population gains the opportunity to clear all safety and stability-related doubts, in addition to learning how the monitoring and inspection processes work. They also learn about the operation of the tailing filtering process, technology capable of filtering tailings from iron ore beneficiation processes. Visits can be scheduled both with the Institutional Relations Department - permanently in touch with local representatives - and with the Communications department.
Supported by CSN Foundation, we created the Espaço Comunidade CSN (Community Center), in the Residencial neighborhood, in the city of Congonhas (MG), intended to create an open and direct communication channel between CSN Mineração and the community in Congonhas (MG).
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