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Magrathea Metals

magratheametals.com ↗
PROCESS SCHEMATIC · METALS & MINERALS / MAGNESIUM PRODUCTION LIVE
Founded
2022
Stage
SERIES A
Raised
$34M
HQ
OAKLAND, CA
Layer
RAW MATERIALS

Carbon-neutral electrolytic process for producing magnesium metal from seawater.

Funding history

RoundAmountDateLead
Seed$10M2023-06VoLo Earth and Capricorn Investment Group (co-led)
Series A$24M2026-03Resource Technology Capital and Balerion Space Ventures (co-led)
Upstream
seawater and brine feedstockelectrolysis cellsclean electricity
Downstream
aluminum alloyersdefense and aerospace magnesium usersautomotive castings
Related
Nox MetalsMariana MineralsLithiosElectra

Sources

Magrathea backed by $100M to rebuild American magnesium production ↗Magrathea Raises $24M in Series A Funding (FinSMEs) ↗This startup wants to make more climate-friendly metal in the US (MIT Technology Review) ↗Magrathea raises $10M seed round (Magrathea) ↗