ArcelorMittal Tubarão steel plant

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ArcelorMittal Tubarão steel plant (Usina Siderúrgica de Tubarão (Portuguese)), also known as CST (Companhia Siderúrgica de Tubarão), is a 7500 thousand tonnes per annum (TTPA) blast furnace (BF) and basic oxygen furnace (BOF) steel plant operating in Tubarão, Serra, Espírito Santo, Brazil.


The map below shows the location of the steel plant in Tubarão, Serra, Espírito Santo, Brazil.

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  • Location: Avenida Brigadeiro Eduardo Gomes, nº 526, Bairro Polo Industrial Tubarão, Serra, Espirito Santo, Brazil[1]
  • Coordinates (WGS 84): -20.253447, -40.242298 (exact)


The Tubarão steel company was originally founded in June 1976 as the state-owned Companhia Siderúrgica de Tubarão (CST).[2] CST began producing steel in November 1983, when the plant's first blast furnace was lit, and eventually expanded its steelmaking capacity to 7.5 million tons per annum with the addition of two more blast furnaces in 1998 and 2007.[3]

After being privatized in 1992, the Tubarão plant was purchased by Arcelor in 2004 and became a division of the newly established global steel group ArcelorMittal in 2006.[3][4]

ArcelorMittal Tubarão manufactures flat steel products - primarily hot-rolled plates and coils - for both domestic and international markets. Its facilities are spread out over ​​13.5 million m², with 7 million m² being dedicated to the steel plant itself. The company has its own steel products terminal at the port of Praia Mole, along with good rail and road connections to neighboring Brazilian states.[5]

The ArcelorMittal Tubarão plant reuses gases from its steel making process for the generation of electric energy; according to company reports, the plant has been energy self-sufficient since 1999, generating approximately 115% of its own energy requirements.[5][6]

In December 2019 ArcelorMittal Tubarão completed relining of its blast furnace #2, which was temporarily idled due to market conditions.[7]

Plant Details

Table 1: General Plant Details

Plant status Start date Workforce size Power source
operating[1] 1983[8][9] 5000[1] Generates approximate 115% of energy required for production from gases from production process[1]

Table 2: Ownership and Parent Company Information

Parent company Parent company PermID Owner Owner company PermID
ArcelorMittal SA [100%][10] 5000030092 [100%] Arcelormittal Tubarao Comercial SA[1] 4295860088

Table 3: Process and Products

Steel product category Steel products Steel sector end users ISO 14001 Main production equipment Detailed production equipment
semi-finished; finished rolled[11] slabs, hot-rolled coils, cold-rolled and galvanized steel[1] automotive; building and infrastructure; energy; tools and machinery; transport[1] 2021[12] blast furnace (BF) and basic oxygen furnace (BOF)[13][14][15] 2 coking plants: 1 CAR STILL / ITALIMPIANTI plant, 3 batteries,147 ovens (1983), 1 SunCoke plant, 4 batteries, 320 ovens (2007); 1 Hitachi sinter plant (1983); 3 BOF: BOF #1 (Italimpianti, 320m³, 1983), BOF #2 (Italimpianti, 320m³, 1983), BOF #3 (SMS Demag, 398m³, 2007)[15][14][11][16]

Table 4: Crude Steel Production Capacities (thousand tonnes per annum):

Basic oxygen furnace steelmaking capacity Nominal crude steel capacity (total)
7500 TTPA[14][17] 7500 TTPA

Table 5: Crude Iron Production Capacities (thousand tonnes per annum):

Blast furnace capacity Nominal iron capacity (total)
7280 TTPA[14] 7280 TTPA

Table 6: Upstream Products Production Capacities (thousand tonnes per annum)

Sinter Coke
6500 TTPA[14][18] 3254 TTPA[14][18]

Table 7: Actual Crude Steel Production by Year (thousand tonnes per annum):

Year BOF Production EAF Production OHF Production Total (all routes)
2020 4973 TTPA[19] 4973 TTPA[19]
2021 7089 TTPA[15] 7089 TTPA[15]

Table 8: Actual Crude Iron Production by Year (thousand tonnes per annum):

Year BF Production DRI Production Total (all routes)
2020 5142 TTPA[20] 5142 TTPA[20]
2021 7387 TTPA[18] 7387 TTPA[18]

Blast Furnace Details

Table 9: Blast Furnace Details:

Unit name Status Start date Current size Current capacity
1 operating[21][11][19][16] November 1983[21][11][19][16] 3707 m³[14][22] 3280 TTPA[23][14]
2 operating[21][11][19][16] July 1998[21][11][19][16] 1374 m³[14][22] 1200 TTPA[23][14]
3 operating[11][19][21] July 2007[11][19][21] 3126 m³[14] 2800 TTPA[23][14]

Articles and Resources


  1. 1.0 1.1 1.2 1.3 1.4 1.5 1.6 Archived from the original on 2021-12-28. {{cite web}}: Missing or empty |title= (help)
  2. "Companhia Siderurgica de Tubarao (CST): due diligence report". Infospectrum. Retrieved 2020-09-16.{{cite web}}: CS1 maint: url-status (link)
  3. 3.0 3.1 "Sumário - A ArcelorMittal Tubarão no Espírito Santo". ArcelorMittal. 2017.{{cite web}}: CS1 maint: url-status (link)
  4. "The evolution of ArcelorMittal". ArcelorMittal. Retrieved 2020-09-16.{{cite web}}: CS1 maint: url-status (link)
  5. 5.0 5.1 "Unidade Tubarão | ArcelorMittal". ArcelorMittal Brasil. Retrieved 2022-02-08.{{cite web}}: CS1 maint: url-status (link)
  6. "Gestão de Energia e Mudanças Climáticas". ArcelorMittal Brasil. Retrieved 2020-09-15.{{cite web}}: CS1 maint: url-status (link)
  7. "2020 Factbook" (PDF). ArcelorMittal. May 2021.{{cite web}}: CS1 maint: url-status (link)
  8. Archived from the original on 2021-12-23. {{cite web}}: Missing or empty |title= (help)
  9. (PDF) Archived from the original (PDF) on 2022-01-21. {{cite web}}: Missing or empty |title= (help)
  10. (PDF) Archived from the original (PDF) on 2021-12-31. {{cite web}}: Missing or empty |title= (help)
  11. 11.0 11.1 11.2 11.3 11.4 11.5 11.6 11.7 (PDF) Archived from the original (PDF) on 2022-03-18. {{cite web}}: Missing or empty |title= (help)
  12. Archived from the original on 2021-12-28. {{cite web}}: Missing or empty |title= (help)
  13. (PDF) {{cite web}}: Missing or empty |title= (help)
  14. 14.00 14.01 14.02 14.03 14.04 14.05 14.06 14.07 14.08 14.09 14.10 14.11 {{cite web}}: Missing or empty |title= (help)
  15. 15.0 15.1 15.2 15.3 (PDF) Archived from the original (PDF) on 2022-06-25. {{cite web}}: Missing or empty |title= (help)
  16. 16.0 16.1 16.2 16.3 16.4 {{cite web}}: Missing or empty |title= (help)
  17. (PDF) Archived from the original (PDF) on 2020-06-06. {{cite web}}: Missing or empty |title= (help)
  18. 18.0 18.1 18.2 18.3 (PDF) Archived from the original (PDF) on 2022-07-22. {{cite web}}: Missing or empty |title= (help)
  19. 19.0 19.1 19.2 19.3 19.4 19.5 19.6 19.7 (PDF) Archived from the original (PDF) on 2022-01-20. {{cite web}}: Missing or empty |title= (help)
  20. 20.0 20.1 (PDF) Archived from the original (PDF) on 2022-01-20. {{cite web}}: Missing or empty |title= (help)
  21. 21.0 21.1 21.2 21.3 21.4 21.5 ArcelorMittal Vega Tubarão Catálogo Técnico para Impressão (Google this)
  22. 22.0 22.1 {{cite web}}: Missing or empty |title= (help)
  23. 23.0 23.1 23.2 {{cite web}}: Missing or empty |title= (help)

External resources

External articles

Additional data

To access additional data, including an interactive map of steel power plants, a downloadable dataset, and summary data, please visit the Global Steel Plant Tracker and Global Blast Furnace Tracker on the Global Energy Monitor website.