We are looking for sulfur all over the world, our annual quantity will be over 200, 000tons, and the purity of sulfur must be 99. 9% or more on dry basis. You can visit our website to know more information. Purity on dry basis 99. 9% Moisture 1% Ash 0. 03% Acidity 0. 003% Organic substances 0. 03% Arsenic 0. 0001% Fe 0. 003%