| Report on Alumina Output（Unit：kiloton） |
| Period | Alumina class | Alumina output |
| Q2 2007 | Chemical industry alumina | 247 |
| Metallurgy alumina | 4,789 |
| Total | 5,045 |
| Q3 2007 | Chemical industry alumina | 231 |
| Metallurgy alumina | 4,817 |
| Total | 5,048 |
| Q4 2007 | Chemical industry alumina | 252 |
| Metallurgy alumina | 4,733 |
| Total | 4,985 |
| |
| 2007 | Chemical industry alumina | 909 |
| Metallurgy alumina | 18,547 |
| Total | 19,456 |
| |
| Q1 2008 | Chemical industry alumina | 218 |
| Metallurgy alumina | 5,044 |
| Total | 5,262 |
| Q2 2008 | Chemical industry alumina | 269 |
| Metallurgy alumina | 5,598 |
| Total | 5,867 |