Sodium Metabisulfite

Dears, I represent company JSC "EKOS-1" - one of the biggest Russian chemicals producers. We have chemicals production in moscow region. We produce wide range of materials for chemicals industry. Please check our Web site for more information about our company, it has english version www.ekos-1.ru/en/ We are interested in purchasing of several materials produced by your company. We would like to purchase Sodium metabisulfite on a regular basis. (Sodium metabisulfite [NF] CAS: 7681-57-4) Our annual consumption is around 100-120 tons pro year. We would like to place orders several times a year for 10-15 tons. Would you please send us commercial offer for this volume with calculation of CFR Saint-petersburg price. If you can offer this product would you please send information about it ( MSDS, possible packaging,packing options etc.)? Please inform us If it is better to order bigger volume for better deal.