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South America mined lithium supply to grow 77% by 2040 - Benchmark Mineral Intelligence

Reported by Benchmarkminerals
Oct 21, 2026· 1 min read
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Key Takeaways
  • • Benchmark Mineral Intelligence projects South America's mined lithium supply will grow 77% by 2040.
  • • The headline forecast is the only substantive data point in the primary source; the article body contains commodity index tickers without further analysis.
  • • Lithium Index stood at 317.07 (down 1.64%) and Lithium Carbonate Index at 256.83 (down 7.85%) in the snapshot published with the article.
  • • LFP Index rose 4.96% while NCM High-Nickel and Mid-Nickel indices fell, reflecting divergence across battery chemistries.
Summary
Benchmark Mineral Intelligence forecasts that mined lithium supply from South America will grow 77% by 2040, according to its publication of the same headline. The projection points to continued expansion of the region's lithium output, which is concentrated in the so-called Lithium Triangle of Argentina, Bolivia and Chile.

The article's accompanying market data shows the Lithium Index at 317.07, down 1.64%, while the Lithium Carbonate Index stood at 256.83, down 7.85%, and the Lithium Hydroxide Index at 292.05, down 6.12%. Across the battery materials complex, the LFP Index gained 4.96% while NCM Mid-Nickel and NCM High-Nickel indices declined 6.02% and 3.49% respectively. The Cobalt Index fell 1.39% and the Nickel Index fell 6.06%.

The primary source does not provide detailed methodology, volume figures, or company-level breakdowns for the 2040 forecast, so the scale of individual projects and timing of capacity additions cannot be confirmed from the article alone. Allocators tracking lithium exposure should treat the 77% figure as Benchmark's forecast rather than a committed production trajectory.

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Sources

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AlphaMaven summarised this story from the reporting below. Each link opens the original article.

Benchmarkminerals South America mined lithium supply to grow 77% by 2040 - Benchmark Mineral Intelligence