Very often the dumping charges that these engineered landfills in Europe or United States are extremely expensive. So you know, it can cost upwards of 85 US dollars to 150 US dollars, or it could be completely illegal to dump that waste... per metric tonne sorry at an engineered landfill. So very often the export economics of shipping that waste to another country that has a much lower landfilling cost in Tanzania and Kenya, for example, the equivalent unit is only $1.50 per metric tonne to dump their waste at the landfill. So that just provides, you know at larger volumes an astronomical saving for these countries. But this is not meant to exist for hazardous waste materials like chemicals and paints and certainly electronic waste which has heavy metals in it. That was meant to be ruled out in the Basel Convention decades ago and a lot of this is kind of falling through the cracks, unfortunately.