The Hang Seng Index tumbled to the lowest level since March 2009 amid weak earnings reports and comments from St. Louis Federal Reserve President James Bullard. The Fed official said that it is too early to be certain about QE3 taken recent upbeat US data releases. The Hang Seng Index sank by 1.25% to end the week at 19,880.03. All industries within the index dropped. The largest losses posted basic materials and consumer services. Basic materials producers were hit severely by weakness of their US peers. Aluminum Corp of China slid by 2.01% while services company, Sands China, dropped by 3.32%. Oil and gas firms also added pressure on the index. CNOOC lost 1.1%, extending pervious slump amid weak first half results. China Coal lost 2.83% on weakness of its counterpart Shanxi Coal that posted a 4.2% decline in profits in H1.