With hot steel slab now imported by rail from the sister Port Talbot steelworks, the mothballed "heavy end" of the Llanwern works was resultantly demolished in 2004.
[6] Subsequent problems caused by the eurozone crisis forced the company to once again mothball the hot strip mill commencing 24 November 2011 with plans to re-open during late 2012.
[8] A £115m renewal project called Glan Llyn, led by St. Modwen Properties PLC, is currently transforming the former steel-producing part of the Llanwern steelworks site.
Started in 2004, the masterplan envisages 1.5m sq ft of employment-generating accommodation hosting 6,000 jobs, 4,000 new dwellings, community facilities and open space including 3 new lakes.
In 2017 it was announced that the Spanish railway rolling stock construction company Construcciones y Auxiliar de Ferrocarriles (CAF) would open a factory at Celtic Business Park (near the steelworks) to build trains primarily for the UK market, including Transport for Wales.