Circular Intelligence
← The 34 critical raw materials
B

Boron

Glass, fertilisers, permanent magnets

StrategicMagnetsWind & solarConstruction & glass
Symbol
B
Reserve life
~100 y
Top supplier
Turkey
EU status
Strategic

What it is

Boron is a metalloid used in borosilicate glass, ceramics, agricultural micronutrients, and — critically — in neodymium-iron-boron permanent magnets.

Why it matters

Turkey holds roughly three quarters of global reserves. Demand from wind turbines, EV motors, and energy storage is rising fast.

Circular challenges

Whether boron re-enters the economy at end-of-life is mostly settled at the design stage. These are the recurring blockers.

  • Magnets are sintered

    NdFeB magnets are sintered blocks with boron chemically bound in; recycling requires hydrogen decrepitation or chemical separation, which few facilities operate at scale.

  • Glass cullet limits

    Borosilicate glass can be recycled, but only with other borosilicate — mixed with regular container glass it ruins the batch.

  • Agricultural loss

    Boron applied as fertiliser leaves the cycle through soil and runoff; it cannot meaningfully be recovered.

Sources: European Commission, Critical Raw Materials Act (Regulation (EU) 2024/1252); USGS Mineral Commodity Summaries 2024; EU Joint Research Centre Raw Materials Information System; IEA Critical Minerals Outlook 2024.

Working on boron in your value chain?

We help startups, corporates and regions turn raw-material risk into circular strategy. Let's talk.

Connect with us →