South Korean company POSCO gains access to RIGI to produce lithium in Argentina
Argentina approved POSCO Argentina SAU SDE’s “Golden Salt II” project under the Incentive Regime for Large Investments (RIGI), via Resolution 1157/2026. The plan would build a plant in Salar del Hombre Muerto to produce about 23,000 tons of lithium carbonate annually for export, with a USD 207.9 million investment and RIGI tax, customs, and exchange benefits, according to Argentina’s Ministry of Economy and an official statement.
How this was made

The 30-second read
Why it matters
Argentina’s approval via Resolution 1157/2026 provides incentive access for the project, potentially improving net present value and reducing development friction, but the article lacks execution and financing specifics.
Market read
Traders may view the RIGI approval as a positive regulatory step for Argentina lithium supply development, but the article does not provide enough to forecast near-term earnings impact.
What to watch
Key missing details include project timeline, offtake contracts, cost curve assumptions, and whether POSCO’s corporate structure makes the approval directly material to listed equity holders.
Background
RIGI (Incentive Regime for Large Investments) in Argentina offers tax, customs, and exchange benefits for large strategic-sector projects; “Golden Salt II” is a lithium carbonate project in Salta/Catamarca.
Market effects
Supports the Argentina lithium investment thesis by signaling incentive regime access for new projects.
Reinforces North-west Argentina critical-minerals development narrative and bilateral investment flows.
May marginally affect global lithium supply expectations if the project advances to construction and ramp.
Counterpoint
Incentive approvals do not guarantee timely capex deployment or permitting outcomes, so equity impact may be muted until financing and construction milestones are confirmed.
Key entities
- companyPOSCO Argentina SAU SDE
South Korean company’s Argentina entity presenting the “Golden Salt II” lithium carbonate project under RIGI.
- governmentArgentina Ministry of Economy
Issued Resolution 1157/2026 approving RIGI adherence for the project.
- project“Golden Salt II” (Salar del Hombre Muerto)
Planned plant targeting about 23,000 tons per year of lithium carbonate for export, with stated investment of about USD 207.9 million.




