 Typically we go around collecting plastic waste. We have a network of about 500 informal waste pickers who we pay on the kilo on how much plastic waste they can give us. This is a big motivation for them because in the end they are making a living out of that. So once we collect the plastics from them, we shred it up, we mix it with some components and then we hit the plastic, we get a paste and then we mould it into a roofing tile.