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Chinese Aluminum Producers Shift Overseas as Domestic Capacity Nears Limit
China’s aluminum smelting sector is operating close to full effective capacity, pushing producers toward overseas projects in Indonesia and other markets as domestic expansion becomes increasingly constrained.
By Paul Ploumis
Published September 9, 2026
Key Points
- China’s formal annual primary aluminum capacity ceiling remains at 45 million metric tons.
- AZ Global estimates effective capacity at about 45.26 million tons, with smelters operating at 99.7% of effective capacity in August.
- Indonesia has emerged as a major destination for Chinese aluminum investment, including projects involving Tsingshan, Huafeng and Xinfa.
- Chinese-backed projects are also under development in Kazakhstan and Angola.
- China already accounts for roughly 60% of global aluminum production.
MONTREAL (Scrap Monster): Chinese aluminum producers are increasingly turning to overseas projects as domestic smelting capacity approaches the limits set by the country’s government.
China’s annual primary aluminum capacity ceiling remains at 45 million metric tons under a policy introduced in 2017. The measure followed a period of rapid industry expansion that placed additional pressure on the country’s power system.
The article reports that actual production has moved above the 45 million-ton level since March 2026.
Domestic Smelting Capacity Nears Full Utilization
Industry consultant AZ Global estimates effective aluminum capacity at about 45.26 million tons. Smelters operated at 99.7% of effective capacity in August, according to the reported data.
Output has increased even without formal additions to new capacity. Several producers have instead replaced older, less efficient facilities with more modern operations.
The figures point to limited room for further domestic expansion under the existing capacity framework.
Indonesia Emerges as Major Overseas Destination
With domestic expansion becoming increasingly difficult, Chinese companies are directing investment toward countries offering available energy, infrastructure and industrial land.
Indonesia has emerged as a major destination. Chinese groups including Tsingshan, Huafeng and Xinfa are involved in new aluminum projects in the country.
Chinese-backed projects are also progressing beyond Asia, including developments in Kazakhstan and Angola.
China already produces roughly 60% of the world’s aluminum. Further overseas investment could increase the country’s contribution to the international aluminum supply chain.
