On June 9, China Aluminum (02600.HK) fell 3.46% in regular trading, trading at HK$9.75, with trading volume of HK$91.33 million. The decline extends the sharp sell-off triggered by the formal effective date of the companys inclusion in the Hang Seng Index on June 8, when the stock plunged 8%.

The stock exhibits a classic buy-the-rumor-sell-the-fact pattern. China Aluminum had previously surged on dual catalysts — Guineas planned June bauxite export controls and the HSI constituent inclusion announcement — hitting the daily limit on May 26. Since then, accumulated gains have attracted concentrated profit-taking. Main capital flows have recorded sustained net outflows over consecutive days, with institutional and northbound funds actively selling. In the past five trading days alone, approximately RMB 900 million in net outflows were recorded.

The broader aluminum sector remains under pressure, with peers China Hongqiao down 2.24% and Nanshan Aluminium International down 2.38%. The company had previously lowered spot aluminum ingot prices, and concerns over elevated alumina costs squeezing margins persist, reinforcing the near-term corrective trend.

(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.)