Hei tawhā i ngā hua ethanol whakakikīa, nunumi rānei, he maha ngā ethanol producers kōwhiria hei arotahi i te uara i waihanga mai i coproducts. Distillers maroke tātaikore me solubles (DDGS) kua roa te whakawāteatanga

He konumohe te toka parataiao e taunaki ana ki alumina, te pūtake mo te mahi aluminum. It is generally easy to mine because it is found near the surface of the