Aeramine Secures £96k Pre-Seed to Advance Low-Carbon Copper Refining Technology

Bedford-based vacuum metallurgy startup Aeramine Limited has closed a £96k pre-seed funding round. The new capital injection gives the company an estimated post-money valuation of £3.3m.

Incorporated in February 2021, Aeramine focuses on the sustainable processing of critical metals. The company has developed a proprietary, low-carbon process to refine scrap copper and rare earth metals into ultra-high purity materials and components. Traditional metal refining is highly energy intensive and environmentally damaging. Aeramine addresses this problem by upcycling scrap copper into high-purity feedstock, producing forgings and powders that meet the strict material requirements of advanced industries.

The startup's high-purity copper products are designed for high-value applications across the aerospace, automotive, medical, and renewable energy sectors. Notably, the materials are suited for use in nuclear fusion and advanced electronics, where material purity is critical to performance. By creating a circular, low-carbon supply chain for these metals, Aeramine's technology aligns directly with global sustainability and net zero targets.

Operating with a lean team of between two and four employees, Aeramine remains in the early stages of its corporate development. As is typical for deeptech and hardware startups at this maturity level, the company is heavily focused on research and development. No revenue or profit figures have been disclosed in its latest accounts.

The £96k pre-seed round was allotted in August 2025 and officially filed in March 2026. While the participating investors have not been publicly disclosed, the £3.3m valuation indicates solid backing for the company's underlying intellectual property and its potential to disrupt the traditional copper supply chain. This transaction represents the first major disclosed equity funding round for the business since its founding.

Aeramine's successful raise occurs within a complex funding landscape for UK climate and materials technology. While the broader UK cleantech sector remains robust, securing over £5bn in investment during 2024, capital distribution is often heavily skewed. Recent industry analysis highlights that while the UK plans to invest £9.8bn in carbon capture and hydrogen projects between 2025 and 2030, only £4bn is allocated to emerging cleantech startups.

Early-stage materials science and hardware ventures typically require patient capital due to long development cycles and high physical infrastructure costs. However, with the UK government and private investors increasingly focused on securing domestic supply chains for critical minerals and supporting the transition to net zero, startups like Aeramine are positioned in a strategically vital sector. The £96k raise provides the Bedford company with early runway to continue refining its vacuum metallurgy technology and validating its high-purity copper products for industrial applications.