Celsa Steel UK Cardiff plant

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Celsa Steel UK Cardiff plant, also known as Celsa Steel Castle Works and Celsa Steel UK melt-shop, is a 1200 thousand tonnes per annum (TTPA) electric arc furnace (EAF) steel plant operating in Cardiff, Wales, United Kingdom.


The map below shows the location of the steel plant in Cardiff, Wales, United Kingdom.

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  • Location: Building 58, Castle Works, East Moors Road, Cardiff, CF24 5NN, United Kingdom[1]
  • Coordinates (WGS 84): 51.472502, -3.157583 (exact)


The melt shop of Celsa Steel UK began in 2006. Other parts of the facility including the hot rolling mill started earlier.[2]

Plant Details

Table 1: General Plant Details

Plant status Start date Workforce size
operating[3] 2006[4] 500[5]

Table 2: Ownership and Parent Company Information

Parent company Parent company PermID Owner Owner company PermID
Compania Espanola de Laminacion SL [100%][1] 5000020443 [100%] Celsa Steel (UK) Ltd[1] 4297469732

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[4] rebar, wire rod, merchant bar, light sections, billet[4] building and infrastructure; energy; tools and machinery[6] 2021[7] electric arc furnace (EAF)[1] 1 EAF[8]

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

Electric arc furnace steelmaking capacity Nominal crude steel capacity (total)
1200 TTPA[3] 1200 TTPA

Table 5: Actual Crude Steel Production by Year (thousand tonnes per annum):

Year BOF Production EAF Production OHF Production Total (all routes)
2021 1000 TTPA[9] 1000 TTPA

Articles and Resources


  1. 1.0 1.1 1.2 1.3 https://web.archive.org/web/20211230104404/http://celsauk.com/. Archived from the original on 2021-12-30. {{cite web}}: Missing or empty |title= (help)
  2. About Us, Celsa Steel UK, Retrieved on: Jul. 31, 2020
  3. 3.0 3.1 https://web.archive.org/web/20220709194630/https://www.celsauk.com/. Archived from the original on 2022-07-09. {{cite web}}: Missing or empty |title= (help)
  4. 4.0 4.1 4.2 https://web.archive.org/web/20220106064644/http://celsauk.com/Company.mvc/CelsaSteelUK. Archived from the original on 2022-01-06. {{cite web}}: Missing or empty |title= (help)
  5. https://web.archive.org/web/20220803200152/https://www.celsauk.com/Company.mvc/CelsaSteelUK. Archived from the original on 2022-08-03. {{cite web}}: Missing or empty |title= (help)
  6. (PDF) https://web.archive.org/web/20220318115551/http://www.celsauk.com/Pdf/Celsa%20UK-Local%20Focus-GlobalCommitment.pdf. Archived from the original (PDF) on 2022-03-18. {{cite web}}: Missing or empty |title= (help)
  7. (PDF) http://www.celsauk.com/Pdf/CelsaUKISO14001Certificate.pdf. {{cite web}}: Missing or empty |title= (help)
  8. (PDF) https://web.archive.org/web/20220318115528/https://www.eurofer.eu/assets/Uploads/Map-20191113_Eurofer_SteelIndustry_Rev3-has-stainless.pdf. Archived from the original (PDF) on 2022-03-18. {{cite web}}: Missing or empty |title= (help)
  9. https://web.archive.org/web/20220707041138/https://www.celsagroup.com/en/news-posts/celsa-group-recovers-pre-pandemic-production-with-more-than-6-5-mt-of-steel-produced-in-its-european-steel-mills/. Archived from the original on 2022-07-07. {{cite web}}: Missing or empty |title= (help)

Other resources

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 on the Global Energy Monitor website.