Brazil Rare Earths Draw Korea’s POSCO Into the Caldeira Project
POSCO (South Korea) signed a strategic offtake agreement with Australia’s Meteoric Resources for the Caldeira ionic clay rare earth project in Minas Gerais, Brazil. POSCO can secure up to 30% of future output for as long as seven years, confirmed in July 2026. No contract value was disclosed. WEG is cited as a potential downstream magnet customer.
How this was made

The 30-second read
Why it matters
For traders, the actionable element is the long-term volume commitment (up to 30% for up to seven years) that can de-risk Caldeira’s financing narrative, while leaving key value drivers (feasibility, licenses, product qualification, and downstream offtake confirmation) still pending.
Market read
A strategic offtake agreement is a positive signal for project de-risking and non-China supply narratives, but the lack of disclosed economics and the absence of confirmed downstream WEG linkage limit near-term trading conviction.
What to watch
WEG is discussed as a likely downstream anchor but not confirmed; the market may re-rate the deal only after any formal tripartite linkage or financing/permitting milestones are announced.
Background
The article frames the POSCO-Meteoric offtake as part of the global effort to diversify rare-earth and permanent-magnet supply chains away from China’s dominance.
Ticker impact
POSCO signed a strategic offtake with Meteoric for up to 30% of Caldeira output for as long as seven years, targeting non-China REE supply.
Likely modest positive read-through for POSCO-linked rare-earth/materials sentiment, with limited near-term earnings impact until feasibility, permitting, and production milestones.
The article discloses the offtake structure and volume (up to 30% for up to seven years) but provides no contract value and no production start date, so near-term fundamentals are unclear.
Market effects
Reinforces the trend of non-China rare-earth offtakes and could increase investor focus on ionic clay processing and magnet supply-chain localization.
Highlights Brazil as a potential processing hub, which may attract additional Asian industrial and financing interest in Minas Gerais rare-earth projects.
Supports the broader geopolitical push to reduce China concentration in permanent magnet manufacturing capacity.
Counterpoint
Without disclosed pricing or contract value, the offtake may be more strategic than economic, and execution risk could dilute any valuation impact.
Key entities
- companyPOSCO
South Korea’s steel and materials group, signing a strategic offtake to secure up to 30% of Caldeira rare-earth output for up to seven years.
- companyMeteoric Resources
Australian-listed exploration company controlling the Caldeira ionic clay rare earths project in Minas Gerais.
- companyWEG
Brazilian electric motor and drive manufacturer discussed as a potential domestic magnet supply-chain anchor, though not confirmed as a direct offtaker.
- assetCaldeira project
Ionic adsorption clay rare-earth project in Poços de Caldas, focused on producing mixed rare earth carbonate with neodymium as a key driver.




