Mr. Des Joyce:

The manganese goes into solution and what we have to do is to get it out of solution. Without going into too much detail, we oxidise it and change its form so that it becomes a solid again. There are a number of ways to do that. There are different chemicals that can be used. One of them is chlorine. Chlorine is one of these reactive chemicals that, if dosed correctly, can react with the manganese, causing it to drop out. That is one of the approaches we will probably take, whether with-----