We are looking for a quote on Sodium Sulphate, detergent grade, for 1,000 metric tons per month, for at least a year, with possibility of increasing order amount after a period of time. Specifications on product are as follows: Na2SO4 purity 98.8%; NaCI 0.42%; MgS)4 0.76%; Fe203 8ppm. Product should be packed in 1 metric ton containers or best packaging avalaible. Please quote it FOB. Also, let us know where the product is located. Let me know if you need more information. Thank you very much for your prompt attention to this quote request.