On September 11, CHALCO fell 4.28% in regular trading, trading at HKD 8.21/share, with turnover of HKD 65.37 million. The aluminum sector saw broad-based weakness, with peers China Hongqiao down 5.03%, Chuangxin Industrial down 4.89%, and Nanshan Aluminium International down 4.06%.

On the news front, recent Hong Kong Exchange disclosures revealed that BlackRock reduced its CHALCO H-share holdings from 10.12% to 9.40%, while JPMorgan had earlier sold approximately 5.25 million shares at around HKD 8.63 per share, lowering its long position to 5.94%. The staged de-risking by major foreign institutions weighed on sentiment. Meanwhile, on September 10, the company announced the repurchase and cancellation of 212,580 restricted shares from six departed incentive recipients, a routine equity incentive adjustment with negligible impact on total share capital. Notably, the company's controlling shareholder Aluminum Corporation of China increased its stake to 8.09% on September 4, and the company reported strong first-half earnings with net profit of RMB 11.87 billion, up 67.91% year-on-year.

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