Engineered Bio-Mining · Carbon Removal

Mining the energy transition. Locking away carbon.

Gigatonne Bio's engineered microbes extract energy-critical metals from ultramafic mine waste, while permanently mineralizing CO2 in the same process, at gigatonne scale.

See the technology

70%

Metal extraction from low-grade ore

Ni · Co · PGEs

Energy-critical metals recovered from waste

New mines required

The Problem

Critical metal supply has nowhere to come from

And mine waste is piling up.

No domestic supply chain

Cobalt, nickel, PGEs, and chromium are critical to the energy transition and defense, with essentially no domestic refining capacity.

Depleting ore grades

Conventional deposits are getting leaner and harder to permit, pushing costs and emissions higher every year.

Waste as growing liability

Billions of tons of ultramafic tailings sit unmonetized as long-term environmental liabilities, with no recovery technology that works on them today.

Untapped mineral value

Ultramafic tailings piles worldwide hold billions of dollars in unrecovered nickel, cobalt, and PGEs, locked away for lack of a viable extraction method.

Technology

Engineered microbes recover metal and mineralize carbon in one process.

Competitive advantage

70%

Unmatched extraction performance

Metal extraction from low-grade ores that conventional processes can't economically touch.

95%

Carbonation efficiency

Near-total conversion of mobilized CO2 into permanent, stable mineral carbonate.

Full-loop

Full metals separation & refining

One integrated process delivers refined, sellable metal, not just a leach concentrate.

Zero

High-energy inputs

No heating, pressurizing, or crushing — biology does the work conventional processing can't skip.

Mission

Critical minerals and carbon removal shouldn't be a trade-off.

The future of our planet needs vastly more nickel, cobalt, and PGEs and gigatonnes of CO2 removed from the atmosphere. Gigatonne Bio was founded to deliver both from the same waste stream, using biology.