Dear Jenny, We are not using much for Ammonium Sulfate, can you advise whether you also apply for the following: 1. Sodium Sulphide 2. Soda Ash 3. Formic Acid 4. Sodium Metabisulfite 5. Ammonium Sulphate 6. Sulphuric Acid 7. Sodium Formate 8. Sodium Bicabonate We are one of the manufacturer for car seat so what ever type you offer please consider for those accordingly. Regards, Wanvisa
