The UK government may have to spend billions more if it moves ahead with full nationalization of British Steel. The company’s Scunthorpe steelworks has already received around £419 million in government support, while total public spending could rise above £1.5 billion by 2028 if current support continues.

A major cost is expected from shifting the Scunthorpe site toward electric arc furnace steelmaking, a transition industry sources estimate could need at least £1 billion in additional investment. The move is aimed at protecting domestic steel production, but questions remain over future profitability, private investor interest, and the wider policy environment, including carbon rules and steel import quotas. For the UK steel industry, British Steel’s future remains a major test of industrial strategy, decarbonization funding, and long-term competitiveness.