What it is
Beryllium is an extremely light, stiff metal used in precision aerospace parts, defence optics, and copper-beryllium alloys for high-reliability connectors.
Why it matters
Production is dominated by a single US operation. It is irreplaceable in some defence and space applications but used in tiny quantities.
Circular challenges
Whether beryllium re-enters the economy at end-of-life is mostly settled at the design stage. These are the recurring blockers.
Toxic dust
Beryllium dust causes chronic lung disease, so disassembly and recycling require sealed facilities — very few exist.
Low concentrations
Copper-beryllium alloys contain only ~2% beryllium, so recovery is rarely economic unless designed in.
Single-source supply
One company supplies most of the Western market; any disruption cascades quickly into defence and aerospace supply chains.