Ercros, S.A. manufactures and sells basic chemicals, intermediate chemicals, and pharmaceuticals in Spain. It operates through three divisions: Chlorine Derivatives, Intermediate Chemicals, and Pharmaceuticals. The Chlorine Derivatives division produces ammonia, bioplastics, caustic potash and soda, chlorine, chloroisocyanurates, dicalcium phosphate, dichloroethane, hydrochloric acid, hydrogen peroxide, potassium carbonate, PVC compounds, sodium chlorate and chlorite, sodium hypochlorite, vinyl chloride monomer and polychloride, and trichloroisocyanuric acid. Its products are used as intermediates in other industrial processes to purify and treat drinking and waste water; treat and maintain swimming pool water; bleach fabrics and paper; produce solvents, detergents, and strippers; manufacture printing inks and coloring; produce compound feed and in cooling equipment; and others. The Intermediate Chemicals division provides formaldehyde, glues and resins, moulding compounds, paraformaldehyde, pentaerythritol and dipentaerythritol, and sodium formate for manufacturing resins, paints, varnishes, sockets and switches, tableware, health and packaging items, particles, and decorative laminated and plywood boards, as well as for use in the textile tanning industry. The Pharmaceuticals division engages in the manufacturing of raw materials and intermediate pharmaceutical products of antibiotic, cholesterol-lowering, anti-ulcer, and anti-fungal products. Its products include amlodipine besylate, azithromycin, clarithromycin, erythromycins, famotidine, fosfomycin calcium and sodium, fosfomycin trometamol, and fusidic acid. The company also exports its products. Ercros, S.A. was founded in 1817 and is headquartered in Barcelona, Spain.