Dears First of all, we need to introduce our self as export & trading office deal with wide rang of products as Chemicals and others. Zinc Sulphate Hepta hydrate (Zn So4 7h2o) 99.5 % Liquid Ammonia Purity 99.9 % asNH3 Ammonium Sulphate fertilizer 20.6 %N Calcium nitrate Ca(No3)2 Liqued fertilzer 11% N Ammonium Nitrate Fertilizer 33.5 % N Nitric Acid 55.36 %/wt Sulphuric acid 98.5 (+- 5) %/ wt. Origin of products are Egyptian . Delivery directly from the factory Whom is intersted we can send we can send the certificate of analusis Looking forward to hearing from you soon