On June 7, 2025, SMM Aluminum Division Senior Manager Anran Ju and Aluminum Analyst Xinyi Liu led a delegation on a field trip to PT. Bintan Alumina Indonesia's industrial park, where they visited BAI's alumina refinery and port facilities.
Company Profile
PT Bintan Alumina Indonesia (BAI), established in 2018 and headquartered in the Galang Batang Special Economic Zone (SEZ) on Bintan Island, Riau Islands, Indonesia, specializes in producing smelter-grade alumina (SGA). The company's alumina refinery commenced operations in 2022 with an initial capacity of 2 million mt per year (Mtpa), processing approximately 6 million mt of domestically mined bauxite annually. It plans to expand its capacity by 1 million mt/year in both 2025 and 2026, ultimately achieving a total capacity of 4 million mt/year. BAI is 72.7% owned by Global Aluminium International Pte Ltd (a joint venture between Nanshan Aluminum Singapore Pte Ltd (95%) and Redstone Group (5%)), 25% by Press Metal Aluminium Holdings Bhd, and 2.3% by PT Mahkota Karya Utama. The company has signed a long-term supply agreement with Press Metal, committing to supply 1.5 million mt of alumina annually until 2040. BAI has also developed comprehensive infrastructure, including a dedicated port and a 160-megawatt coal-fired power plant, and secured electricity supply of up to 1,300 MW until 2050 through an agreement with PLN. Emphasizing environmental protection and energy conservation, BAI obtained certification as a Production & Transformation member from the Aluminium Stewardship Initiative (ASI) in May 2025.
During the visit, both parties engaged in in-depth discussions on key topics such as commissioning progress, capacity expansion plans, cost structure analysis, red mud treatment technologies, and environmental protection measures. The BAI management team not provided detailed introductions to production processes and quality control standards but also guided the delegation through critical workshops including roasting, leaching, and precipitation, as well as demonstration areas for dry red mud treatment processes and tailings recycling. Subsequently, the delegation visited the port area to observe ore handling efficiency, storage management, and safety protocols.
Through close exchanges, the parties reached preliminary consensus on optimizing supply chain collaboration, sharing energy conservation experiences, and expanding regional markets, agreeing to conduct further technical and commercial engagements in subsequent phases. This visit not enhanced mutual understanding but also laid a solid foundation for future cooperation in areas such as production process improvement, resource integration, and sustainable development. Both sides look forward to working together to advance Indonesia's alumina industry toward higher levels of green and intelligent development.
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