Dear Lucy, We want the caustic soda for treating and recycling tens of millions of MT of phosphogypsum (the wastes from phosphoric acid industry). When our project will be fully implemented, we will need 1,5 millions of MT / year for 10 years. I know that it could be an impossible quantity for a single provider but we are looking for the ones that give us the best prices according to our demand plans./Our first order would be 25 MT for our demo plant during 2018. The discharge port would be Huelva (SW Spain). Our target price when we are in full control is USD350 / MT Best regards, L.E.