The Panteg Steel Works was situated in the village of Panteg, adjacent to Sebastopol, and Griffithstown, in the district of Torfaen, South Wales. The steel works was founded in 1873, and operated for over 130 years until its closure in 2004. A number of 'firsts' occurred at Panteg Steel Works during its long life, including the first full production of stainless steel in the UK outside Sheffield in 1944, the installation of the first production vertical caster in the UK in 1960 and the commissioning of British Steel's first Argon Oxygen Decarburizer in 1972. Planning permission was given to turn the works into residential housing in 2010, when the site became the Parc Panteg housing estate.