Posco Argentinian Lithium Projects Delayed Amid Prolonged Price Slump

Argentinian Lithium Projects

South Korea’s Posco has delayed completion of its Argentinian lithium projects by six months, citing sluggish lithium price recovery. The Posco Argentinian lithium projects were originally set to complete Phase 2 by Q3 2025 but are now rescheduled for Q1 2026.

Phase 2 Pushed Back as Market Conditions Weaken

Posco began operating its 25,000 t/yr lithium hydroxide plant in Argentina last year. The planned Phase 2 would have doubled capacity to 50,000 t/yr through a connected upstream brine project. However, weak lithium prices and soft global demand forced a schedule revision. The company now aims to optimize production systems and ramp up Phase 1 by late 2025.

This move reflects Posco’s strategic adjustment amid a volatile market. In its April 24 report, Posco highlighted the need for operational flexibility in response to sustained pricing pressures.

Lithium Price Pressure Forces Broader Strategic Realignment

The lithium downturn also contributed to Posco ending its nickel refinery joint venture with China’s CNGR. The JV’s liquidation will complete by June, marking a retreat from previously planned upstream battery material partnerships.

Meanwhile, Posco Future M—Posco's battery materials subsidiary—posted quarterly revenue growth of 17% but a 26% decline year-on-year. Profitability rebounded modestly, helped by rising sales of high-nickel cathode active material (CAM) and growing demand for non-Chinese anode active material (AAM).

China Price Slide Highlights Global Supply Chain Fragility

Chinese lithium carbonate prices remain under pressure due to weakened demand and US-China trade tensions. As of 22 April, lithium carbonate prices dropped to ¥69,000–72,000/t ($9,463–9,874/t), extending a multi-week decline. This pricing environment complicates investment timelines and return expectations for global lithium projects.

The Metalnomist Commentary

Posco’s delay reflects broader capital discipline across the lithium sector amid persistent price volatility. With Phase 2 postponed, the company is signaling caution, while still committing to its long-term battery supply chain strategy in South America.