The UK government has announced expanded support for energy-intensive businesses impacted by the Iran war, with Chancellor Rachel Reeves expanding the British Industrial Competitiveness Scheme to cover 10,000 firms—up from 7,000—offering up to 25% bill reductions backdated to April 2026, as concerns mount over Strait of Hormuz disruptions and rising input costs.
How the Strait of Hormuz Blockade is Pressuring UK Industrial Margins
The ongoing U.S.-led naval blockade of the Strait of Hormuz, initiated on April 13, 2026, has disrupted approximately 20% of global oil transit, according to Refinitiv shipping data. While the UK remains a net energy importer, the blockade has contributed to Brent crude averaging $89.40 per barrel in Q1 2026—a 14.2% YoY increase—directly lifting input costs for energy-intensive sectors. Chemicals, steel, and ceramics manufacturers, which collectively account for £120 billion in annual UK industrial output, have reported margin compression of 300 to 500 basis points since the blockade began, per EEF manufacturing surveys. With natural gas prices also up 18% YoY due to LNG supply rerouting, the government’s intervention aims to prevent a wave of production curtailments or relocations.
The Bottom Line
- The expanded British Industrial Competitiveness Scheme will support 10,000 energy-intensive UK firms with bill reductions of up to 25%, backdated to April 2026.
- Strait of Hormuz disruptions have lifted Brent crude by 14.2% YoY and natural gas by 18%, pressuring margins in UK chemicals, steel, and ceramics sectors.
- Without intervention, EEF estimates 15% of energy-intensive firms could face viability threats by Q3 2026 due to sustained input cost inflation.
Chemicals Sector Braces for Margin Pressure as Innospec (LSE: IOSP) Warns of Cost Pass-Through Limits
UK specialty chemicals producers, represented by the Chemical Industries Association, have seen average EBITDA margins decline from 14.8% in Q4 2025 to 11.3% in Q1 2026, driven by rising naphtha and electricity costs. Innospec (LSE: IOSP), a UK-based fuel additives specialist, reported in its April 24 trading update that while it has passed through 60% of increased energy costs to customers, further hikes risk demand destruction in end-markets like marine fuels and aviation. CEO Ian Brindle warned that “prolonged asymmetry between input cost inflation and pricing power could force selective plant idling,” noting that the company’s Rotterdam and Teesside facilities operate at 82% utilization—down from 91% six months prior. The firm’s forward guidance assumes Brent at $85/bbl; sustained levels above $90 would trigger a 5-7% EBITDA downgrade, analysts at Jefferies estimate.
“The UK’s industrial base is facing a dual shock: imported energy inflation and weakened global demand. Temporary relief measures are necessary, but they must not delay structural investments in energy efficiency and fuel switching.”
Steelmakers Face Competitive Disadvantage as German Peers Benefit from Lower Industrial Power Prices
UK steel producers, including Tata Steel UK and British Steel, are contending with electricity costs averaging £180/MWh—nearly double the €95/MWh paid by competitors in Germany, where industrial users benefit from long-term PPAs and grid subsidies. According to UK Steel, the sector’s energy intensity averages 6.5 MWh per tonne of crude steel, translating to an additional £550/tonne in production costs versus EU peers. This cost gap has widened despite the UK’s participation in the EU Emissions Trading System, as carbon prices remain broadly aligned at €85/tCO₂. British Steel’s CEO, Xiao Zhang, stated in a March 30 interview with the Financial Times that “without targeted support, UK flat-steel capacity risks becoming structurally uncompetitive,” noting that the Scunthorpe plant’s operating losses reached £42 million in Q1 2026. The expanded support scheme could offset approximately £180 million in annual energy costs for the UK steel sector if fully utilized.
| Metric | UK Chemicals (Avg.) | UK Steel (Avg.) | German Steel (Avg.) |
|---|---|---|---|
| EBITDA Margin (Q1 2026) | 11.3% | -2.1% | 8.7% |
| Electricity Cost (£/MWh) | 165 | 180 | 95 |
| Energy Intensity (MWh/tonne output) | 3.2 | 6.5 | 6.5 |
| Utilization Rate | 78% | 82% | 91% |
Supply Chain Reconfiguration Risks Loom as Firms Evaluate Nearshoring Alternatives
Beyond immediate cost pressures, the Iran war is accelerating strategic reevaluations of supply chain resilience. A April 2026 survey by Deloitte UK found that 34% of mid-sized manufacturers are actively assessing nearshoring or friend-shoring options to reduce exposure to maritime chokepoints, up from 22% in October 2025. While full relocation remains cost-prohibitive for most, incremental shifts—such as increasing buffer stocks or dual-sourcing critical inputs—are underway. The Confederation of British Industry (CBI) estimates that prolonged Strait of Hormuz volatility could add 4-6% to UK landed goods costs over 18 months, indirectly feeding into core inflation. This dynamic complicates the Bank of England’s inflation forecast, which currently projects CPI to fall to 2.1% by Q4 2026; persistent energy-driven cost pressures could delay that timeline by two quarters, according to NIESR modeling.
“Geopolitical risk is no longer a tail event—it’s a structural input cost. Firms that treat it as temporary will be outperformed by those building redundancy into their supply chains now.”
Policy Response Falls Short of Structural Reform Demands
While the expanded British Industrial Competitiveness Scheme provides timely liquidity relief, critics argue it fails to address the root causes of UK industrial uncompetitiveness. The Institute for Fiscal Studies notes that the scheme’s £1.2 billion annual cost (based on 10,000 firms receiving average £1,200 support) is funded through general taxation, potentially crowding out productivity-enhancing investments. The backdating mechanism—while politically salient—creates complex accounting treatments for firms under IFRS 15, with PwC UK warning that revenue recognition timing could distort Q2 2026 financials. Long-term competitiveness, economists agree, hinges on accelerating industrial decarbonization, reforming grid access for high-intensity users, and expanding nuclear capacity—measures absent from the current emergency package. As one FTSE 250 industrials CEO told Sky News off-record: “We need less patching and more rewiring.”
*Disclaimer: The information provided in this article is for educational and informational purposes only and does not constitute financial advice.*
