Nanshan Aluminium International Holdings Limited is an Indonesia-based investment holding company. The Company and its subsidiaries are principally engaged in the production and sales of alumina. Its subsidiaries include Hong Kong Nanshan Aluminium Management Company Limited, Prime Aluminium Investment Holding Limited, and Global Aluminium Investment Holding Limited. Its main product is metallurgical grade alumina, produced through the low-temperature Bayer process. Occasionally, the Company also supplies its customers with aluminum hydroxide, which is a semifinished product during its alumina production. Its production facilities are all located in the Special Economic Zone, Bintan Island, Riau Islands Province. It sources bauxite locally. The Company's customers are outside of Mainland China, primarily located in Southeast Asia, particularly in Malaysia and Singapore.