On June 12, Chalco (02600.HK) rose 3.35% in regular trading, trading at HK$9.94/share, with turnover of HK$84.82 million, rebounding after consecutive sessions of decline since the Hang Seng Index inclusion effective date on June 8.

On the news front, global asset manager BlackRock disclosed a significant increase in its Chalco H-share holdings, with its stake rising from 9.66% to 10.44% as of June 4, formally crossing the 10% threshold. This marks continued accumulation by the institution, whose position had already risen from 8.69% to 9.40% earlier. Meanwhile, Guinea's mining ministry is expected to release detailed documentation on aluminum ore export quotas imminently, with alumina futures posting four consecutive gains as supply-tightening expectations intensify. Market estimates suggest Guinea may cap annual exports at approximately 150 million tonnes, representing a reduction of around 33 million tonnes from actual export volumes. The stock had fallen over 12% from its May 26 limit-up level through June 11, and today's rebound follows sector peers Nanshan Aluminium International up 3.83% and Chuangxin Industrial up 3.34%.

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