On June 4, Chalco (02600.HK) fell 3.63% in regular trading, trading at HKD 11.27/share, with trading volume of HKD 89.67 million.

On the news front, the aluminum sector saw broad-based weakness, with peers China Hongqiao down 2.36%, Chuangxin Industrial down 2.55%, and Nanshan Aluminium International down 3.67%, reflecting sustained pressure across the sector. Chalco had previously surged to a limit-up on May 26 driven by dual catalysts — Guinea's planned June implementation of bauxite export controls and the company's inclusion in the Hang Seng Index constituents effective June 8. Since that rally, short-term profit-taking has persisted as accumulated gains attracted selling pressure.

Meanwhile, market concerns over rising alumina costs squeezing profit margins at elevated aluminum prices have not subsided. Combined with continued net outflows from major institutional funds in recent sessions, the stock extended its consolidation pattern as investors digested the prior sharp advance.

(The above content is based on publicly available market information, generated by a program or algorithm, and is intended solely as a stock movement alert. It does not constitute investment advice or a basis for trading decisions.)