According to SMM statistics, overseas metallurgical-grade alumina production in April 2025 increased by 3.8% YoY, with the average operating rate of overseas alumina refineries reaching 82.2%, up 0.3% ...

With 90% of the global capacity for production of high-purity manganese sulphate concentrated in China, Zemek is concerned that the world may soon face a similar reliance on China, as is seen with ...