The first slab of Teesside steel to be made in more than two years should be ready later after the blast furnace at Redcar was relit on Sunday.
The ceremony at the weekend signalled the start the production process, with the inside of the tower heated to more than 1200 degrees.
- Molten iron ore is produced by the blast furnace
- The iron then goes into production and becomes plate steel
- The majority of the steel will then be exported to Asia
1500 workers are now employed directly by SSI, the Thai firm which bought the former Corus plant last year.
See how the blast furnace works: