Check this out. This is what I found in Chinavestor's -china stock research company online - February Newsletter concerning ACH.
...Another important development of January was when seven alumina refineries jointly raised prices of spot alumina. Should prices stabilize at the new 2800 yuan per ton, Chalco (ACH) would make about 20 percent more in the coming quarters...
<o:p>Now, what's interesting that in a day after this publication, ACH increased spot price for alumina to 3600 yuan! So I'm confident ACH is going to do well in the upcoming quarters.</o:p>
<o:p></o:p>