Aditya Birla Management Corporation Limited is the manufacturer of Calcined and Coarse Aluminas. Aditya Birla Management Corporation Limited is an ISO/TS 16949 certified company. The Calcined aluminas are widely used in refractories and in the ceramic industry. The properties of Calcined Aluminas include extreme hardness, refractoriness, high mechanical strength and resistance to wear abrasion, chemical attack and corrosion. These are used as feed material for fused alumina, refractory aggregates, etc. The Coarse aluminas are white crystalline powders which are alpha alumina of high chemical purity and consistent physical properties. These products have excellent grindability properties.