UK Steel Charter: Supporting Heathrow’s expansion for the benefit of British industry

12 February 2025

Heathrow’s new investment programme, building on its £2.3bn expansion plans and the development of proposals for a third runway to be submitted to Government by summer, marks a transformational moment - not just for the aviation sector, but for the entire UK economy. UK Steel is proud to support this landmark project as the airport sign the UK Steel Charter.

The proposed third runway and today’s statement on expanding the terminal infrastructure are part of the largest private sector capital investment in the UK’s transport network. This represents the largest private investment programme in Heathrow’s history and build on the £2.3bn accelerated investment announced by Heathrow in December. The programme will be a major improvement in national infrastructure, with billions of pounds of investment that should flow into domestic supply chains like UK steelmaking. 

Heathrow’s increased investment serves to support the Government’s national mission for growth. Steel has long been integral to Heathrow’s evolution. The construction of Terminal 5 roof required approximately 18,500 tonnes of steel for the main terminal’s roof alone, with an additional 1,100 tonnes used for the air traffic control tower. Overall, Terminal 5 used 80,000 tonnes of steel. Projects of this scale demonstrate the vital role of the UK steel sector in delivering world-class infrastructure.

If Heathrow purchased UK-made steel in its new projects, it would reinforce the importance of a vibrant domestic steel industry. This investment will not only modernise the UK’s only hub airport but also contribute to the long-term health of an innovative and essential sector.

UK Steel commends Heathrow’s forward-thinking approach and its commitment to delivering projects in the national interest. Done correctly, this could prioritise homegrown talent, resources, manufacturing and steel to create jobs and drive regional growth. Together, we will build a future that benefits the whole country.

Gareth Stace, Director-General, UK Steel said:

"The UK steel industry welcomes Heathrow’s multi-billion-pound investment programme, a major boost for British businesses and a clear signal that the UK is open for growth. This transformative investment will upgrade vital infrastructure, create jobs, and strengthen the UK’s position as a global hub for trade and travel.

"As part of this commitment, Heathrow has pledged to maximise the use of UK-made steel with the UK Steel Charter, ensuring that the benefits of this project are felt across the country. British steelmakers produce world-class, high-quality products that support major infrastructure, and Heathrow’s decision to prioritise domestic steel and British business reinforces the strength and resilience of the UK supply chain.

"This is a vote of confidence in British manufacturing, supporting skilled jobs, driving investment, and helping to build a stronger, more sustainable economy."