The alumina plant in Bintan Nanshan Industrial Park in Indonesia is the most important link in the aluminum industry chain of the park. It has an annual capacity of 2 million tons and adopts the most advanced Bayer process technology. It mainly adopts the two-stage decomposition process and red mud plate and frame filter press dry storage technology. The process selection and equipment selection have reached the international advanced level. The production adopts DCS automated centralized control to realize the centralization and automation of production process monitoring, control and management, ensuring the safe and efficient operation of the factory. The metallurgical-grade sand-like alumina products produced are superior to the international advanced level and are well received by market customers.