Nanshan Aluminium's Southeast Asian project reaches four million tonnes of annual output

Leading alumina producer Nanshan Aluminium International Holdings Limited has fully commissioned its New Alumina Production Project in Southeast Asia, adding two million tonnes of annual capacity and doubling its total designed alumina output to four million tonnes per year.

The ramp-up was completed in two stages. The first one million tonnes per year line began operations in the third quarter of 2025, followed by the second one million tonnes per year line, which entered operation on 20 December 2025. With both lines now fully operational, the project has moved from expansion to steady-state production.

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The capacity increase significantly strengthens Nanshan Aluminium’s cost position and market leadership in Southeast Asia. The company said the additional output is expected to enhance long-term profitability, improve cost competitiveness, and further consolidate its standing as one of the largest alumina producers in the region. The expansion also has implications for the group’s market share and pricing power in the regional alumina market amid shifting trade flows.

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Nanshan Aluminium International Holdings Limited (2610, -0.22 per cent) is incorporated in the Cayman Islands and listed in Hong Kong. The company focuses on alumina production and sales in Southeast Asia. The company’s market capitalisation stands at HKD 26.22 billion (USD 3.37 billion), with an average trading volume of 1,199,593 shares and a technical sentiment signal of “Strong Buy.”