Proxima Plans €140M Fusion Magnet Factory

Proxima Fusion plans to build a €140M factory in Germany focused on a critical component for advanced fusion reactors.

What happened

The facility will produce high-temperature superconducting tape used in high-field magnet systems. The project includes public support from Lower Saxony and follows Proxima's earlier financing to advance its stellarator-based fusion programme.

Why it matters

Fusion companies depend on specialised materials that are difficult to manufacture at scale. High-temperature superconductors are particularly important because stronger magnets can help make fusion systems smaller and potentially more economical. Supply constraints therefore affect not only Proxima but the broader commercial fusion industry.

The bigger picture

Fusion is becoming an industrial supply-chain story as much as a science story. Startups are now investing in factories, magnets, power electronics and specialised materials years before commercial reactors are expected. Building those supply chains domestically could also become strategically important for Europe as fusion programmes mature.