China Aluminum Production Nears 45.3 Million Ton Cap

China is operating near the ceiling of its official primary aluminum production capacity, a limit set at 45.3 million metric tons per year. Despite this regulatory boundary, the country continues to increase output through operational improvements rather than formal expansion. Zaid Aljanabi, head of aluminum products at CRU Group, noted that gains in efficiency within existing potlines are adding more than 200,000 metric tons to annual production. This phenomenon, described as capacity creep, allows manufacturers to boost yields without breaching the stated capacity cap.

The combination of domestic production increases and broader market dynamics is expected to exert downward pressure on aluminum prices in 2027. Aljanabi, speaking at the AMU Summit 2026, identified the recovery of production in Gulf Cooperation Countries and softening global demand as key factors contributing to this forecast. The market faces a surplus scenario as Chinese output expands while consumption growth remains modest, creating a structural imbalance that favors sellers over buyers in the near term.

Overseas Smelter Projects Accelerate

Chinese manufacturers are diversifying their production footprint through significant investments in Indonesia, Angola, and Saudi Arabia. In Angola, Huatong Angola Industry is constructing a second smelting facility with a capacity of 120,000 tons per year. Construction for this expansion recently began, with the new line expected to become operational in the second half of 2026. The first phase of the project, also sized at 120,000 tons per year, is currently running.

Indonesia represents a larger scale of expansion, with approximately 2.1 million tons per year of capacity currently under construction across at least five different locations. CRU data indicates that the vast majority of this new Indonesian production is destined for the Chinese domestic market rather than for export. This strategy allows Chinese firms to access lower-cost production hubs while maintaining supply security for their industrial base, effectively extending their reach beyond domestic geographic constraints.

Export Data and Price Outlook

China’s aluminum exports remain robust, expanding by 1.9% year on year. The growth is driven primarily by shipments of wheels and stranded wire, indicating sustained demand for processed aluminum products in global supply chains. However, CRU warns that the continued growth in overall Chinese output could weaken price fundamentals in 2027. The increase in available supply, both domestic and from overseas affiliates, is expected to outpace demand growth, leading to a softer pricing environment.

Energy Costs and Plant Efficiency

Timna Tanners, managing director at Wells Fargo, highlighted the potential impact of China’s data center expansion on aluminum production. She suggested that as China prioritizes electricity for high-demand data centers, some of the most inefficient aluminum plants may be retired. This shift could reduce overall supply if energy costs force older, less efficient facilities out of operation. Tanners described this scenario as a bullish case for aluminum prices, providing a counterbalance to the bearish impact of rising production capacity.