POSCO Holdings Completes Upstream Facility at Second Lithium Brine Plant in Argentina
POSCO Holdings completed an upstream facility at its second lithium brine plant in Argentina, with a $954 million investment. The plant has a 23,000-tonne annual lithium carbonate capacity, bringing the company's total to 48,000 tonnes. POSCO plans to expand production to 50,000 tonnes by 2027 and aims for 100,000 tonnes by 2033 with additional plants. The company signed an MOU with local governments for further investments.
How this was made

The 30-second read
Why it matters
The completion expands POSCO's lithium supply chain, supporting its strategic shift toward resource development and battery materials.
Market read
First disclosure of a major lithium production facility, indicating a significant increase in supply capacity for the battery market.
What to watch
Currency risk in Argentina and potential regulatory changes could affect profitability.
Background
POSCO Holdings completed an upstream facility at its second lithium brine plant in Argentina, investing $954 million and targeting 50 kt of lithium hydroxide annual capacity.
Market effects
Adds supply capacity to the lithium sector, potentially easing price pressure.
Strengthens South Korean resource exposure and Argentine mining activity.
Contributes to global lithium supply growth, relevant for EV battery markets.
Counterpoint
The project may face operational delays or cost overruns, limiting near‑term impact.
Key entities
- companyPOSCO Holdings
South Korean conglomerate expanding lithium production in Argentina.
- assetHombre Muerto salt flat
Lithium brine resource in Argentina where the plant is located.



