Jost Chemical Co. Specialty Chemical Manufacturer Ammonium Calcium Copper Iron Magnesium Manganese Potassium Sodium Strontium Zinc Attributes FAQ's Customer Support Technical Support Jost Chemical Co. is a manufacturer of high purity specialty chemicals for the pharmaceutical, nutritional, food, and other specialty markets. As an FDA registered manufacturer that operates under bulk pharmaceutical cGMP's, Jost Chemical produces high quality chemicals with lot-to-lot consistency that meet USP/EP/ACS/FCC specifications and Kosher and Halal certifications where applicable. Jost Chemical offers a b