Caustic soda consumption fell in Q3 2025 to approximately 48,589 tonnes, down 7.1% from Q2 and 6.3% lower than in Q3 2024. The usage rate declined to 0.1379/mt, indicating improved efficiency.

Year-to-date consumption, however, increased 7.7% to 100,112 tonnes, with the cumulative utilization rate averaging 0.0911/mt, up 10.0% year-on-year. This suggests that although Q3 operations were more efficient, overall 2025 trends still point to higher caustic soda intensity, possibly due to the processing of lower-grade bauxite.

Caustic Soda Consumption (mt) – Local Bauxite/Alumina Sector