Over the same period, the company's total profit rose by 15.8 per cent from 2024 to RMB 25.8 billion, while its net profit attributable to shareholders edged up by 2.3 per cent on year to RMB 12.7 billion.

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The improvement in earnings was mainly driven by stronger primary aluminium prices and enhanced cost control, Chalco said.

The company exceeded its 2025 production targets, according to the report. Output of metallurgical-grade alumina reached 17.35 million tonnes last year, up 2.9 per cent from the previous year. Of the total, 6.42 million tonnes or 37 per cent was sold externally, marking a 1.1 per cent increase from the previous year.

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Despite higher output, revenue from the alumina segment declined by 16.8 per cent on year to RMB 61.59 billion in 2025 as a consequence of lower alumina prices over the year, the report said.

Meanwhile, the company's primary aluminium production increased by 6.2 per cent from a year earlier to 8.08 million tonnes during the year. Nearly all output – some 8.07 million tonnes or 99.9 per cent – was sold to external customers, also up 6.2 per cent from 2024.

Revenue from the primary aluminium segment climbed by 6.8 per cent from a year earlier to RMB 145.6 billion in 2025, mainly supported by higher aluminium prices.

In addition to its core alumina and primary aluminium operations, Chalco also produces bauxite, chemical-grade alumina, coal, and thermal power. Headquartered in Beijing, the company is listed on both the Shanghai and Hong Kong stock exchanges. 

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