Ganfeng Lithium (HKG:1772 / SZE:002460), China's largest lithium producer, has accumulated controlling interests in Argentina's most significant lithium brine operations through a series of transactions since 2019. The key assets are: **Cauchari-Olaroz (Jujuy Province):** Ganfeng holds 46.5% of the project alongside Lithium Americas Corp (53.5%), which commenced commercial production in mid-2023. It is Argentina's largest lithium brine operation, targeting 40,000 tonnes per year of battery-grade lithium carbonate. Ganfeng provides offtake for substantially all lithium carbonate produced and has rights to purchase Lithium Americas' share of output at market prices. **Pozuelos-Pastos Grandes (PPG) basin (Salta Province):** Ganfeng agreed in 2024-2025 to consolidate the PPG lithium basin through a new joint venture in which Ganfeng holds 67% and Lithium Argentina (spun off from Lithium Americas) holds 33%. The basin is one of Argentina's largest undeveloped lithium brine resources. The SEC filing confirming this consolidation was published in April 2025. Combined, Ganfeng's Argentine lithium position gives it a structurally significant share of Argentina's battery-grade lithium output and exploration pipeline — positioned within the lithium triangle alongside Chilean and Bolivian deposits but with operational production at Cauchari-Olaroz already running. The investments were financed through a combination of Ganfeng's corporate balance sheet and China Development Bank-linked project finance. Ganfeng has also established its own lithium hydroxide refining capacity in China fed from the Cauchari-Olaroz brine, creating a vertically integrated supply chain from Argentine salar to Chinese battery-grade product.