Overseas aluminum production remained relatively stable, with a monthly operating rate of 88.7%.

SMM September 30 News:
According to SMM statistics, overseas aluminum production in September 2025 increased by 2.9% YoY; the average monthly operating rate was 88.7%, down 0.1 percentage point MoM but up 0.3 percentage points YoY. By the end of September, cumulative production in 2025 had risen 2.9% YoY.
In August, US-based Century Aluminum announced the restart of a production line with an annual capacity of approximately 50,000 mt at its Mt. Holly facility in South Carolina, bringing the plant's total annual output to 220,000 mt. The new electrolytic cells are expected to produce their first aluminum in Q1 2026 and reach full capacity by the end of Q2 2026.
South32's Mozal aluminum smelter in Mozambique, Africa, has yet to reach an agreement with the government and energy supplier HCB. South32 announced plans to place Mozal under care and maintenance in March 2026; it expects its equity aluminum production to drop to approximately 240,000 mt in FY26 (July 1, 2025–June 30, 2026), compared with 355,000 mt in FY25.
Alcoa announced that the restart, previously delayed by a nationwide spring blackout, resumed progress in August. The company previously aimed to gradually complete the restart and increase operating load by mid-2026.
Looking ahead to October, no additional aluminum enterprises are currently expected to commence production, resume operations, or implement production cuts. The overseas aluminum operating rate in October is projected to be around 88.8%, up 0.1 percentage point MoM and 0.6 percentage points YoY.

[Data Source Statement: Except for publicly available information, other data are derived from public sources, market exchanges, and SMM's proprietary database models for reference only, not constituting decision-making advice.]