With regards we are planning to buy Barium Carbonate for Iran market. In exchange for that, we will supply you Celestite ore from oue mines in Iran, with SGS certificate and prompt delivery. It is a burter trade. For mututal benefit. On this trade, we hope a long term trade. We can supply you 5000mt of celestite/month, how much Barium Carbonate can you supply us, We request 50% cash and 50% Barium carbonate, for our celestite. If interested contact us for further info.