Britain's Only Defence-Grade Plate Mill Can't Pay Its Bills — and the Navy's Supply Ships Are Next in Line

Liberty Steel Dalzell, the sole UK mill capable of producing plate for three Royal Navy support ships, faces winding-up petitions, late wages, and pension failures — while 34,000 tonnes of steel remain undelivered.

Liberty Steel Dalzell, the Motherwell plate mill that is Britain's only facility capable of producing the steel plate needed for three Royal Navy fleet solid support ships, is operationally collapsing. Workers have been paid late twice in recent months, the pension provider Aviva has stopped accepting contributions, the site's security contractor walked away over unpaid bills, and the National Energy System Operator filed a winding-up petition last month over unpaid electricity transmission charges. The debt has reportedly been repaid and the petition withdrawn, but the pattern is unmistakable: a facility surviving week to week, not year to year.

The strategic stakes are precise. Dalzell holds an order for 34,000 tonnes of plate to build the FSS ships — 216-metre supply vessels designed to carry munitions, food, and stores for the Royal Fleet Auxiliary. The £1.6bn contract was awarded to Spanish state-owned shipbuilder Navantia, partly to revitalise Belfast's Harland & Wolff shipyard. The first ship is due in 2031. But Navantia has already signalled it will build the first vessel largely in Spain because Harland & Wolff is not ready, and every month Dalzell fails to produce plate makes it more likely the steel will be sourced abroad too. The ownership problem is structural. Dalzell belongs to the Gupta Family Group Alliance, controlled by metals tycoon Sanjeev Gupta, whose businesses have been under severe financial pressure since the collapse of his main lender Greensill Capital in 2021. GFG companies remain under Serious Fraud Office investigation for suspected fraud, fraudulent trading, and money laundering. Working capital has been insufficient for two years. The mill recently produced some plate using Kazakh steel — material unsuitable for the defence contract. Industry figures and unions see a viable integrated supply chain in theory: British Steel's Scunthorpe blast furnaces (now under government control) supplying slab to Dalzell, which rolls plate for Belfast. GFG says its UK slab supplier has indicated capacity from early next year. But viability on paper and viability in practice are different things when your security guards quit and your pension fund is frozen. The government's posture is monitoring, not intervening. A spokesperson said ministers have 'encouraged' Navantia to use UK suppliers 'where possible' — language that carries no contractual force. Navantia's own 'local first' policy is voluntary. The Community union has stated plainly that if Liberty cannot produce a viable plan, government intervention becomes unavoidable. The deeper extraction pattern here runs through Gupta's GFG structure. A strategically irreplaceable national asset — the only plate mill capable of defence-grade output — sits inside a corporate group under fraud investigation, starved of working capital, while taxpayers fund the £1.6bn contract it was meant to supply. If Dalzell fails and Navantia sources plate from Spain or elsewhere, Britain will have paid £1.6bn for warships built with foreign steel in a foreign yard, having lost its last plate-rolling capability in the process. The clock is not abstract. Every month of non-production at Dalzell shifts Navantia's supply chain calculus further from Britain. The government's stated preference for UK steel is unenforceable without a functioning mill, and no amount of monitoring replaces working capital.