Lithium Argentina (LAR) reported a 2025 net loss Monday of $0.47 per diluted share, widening from a loss of $0.09 a year earlier.
Analysts polled by FactSet expected a $0.43 loss.
The company said it expects production of 35,000 to 40,000 tonnes of lithium carbonate in 2026.
Lithium Argentina's shares were up 4% in premarket activity.