Introduction ZÜMRÜT International Kimya Co. is a leading international supplier of Caustic Soda, offering reliable and high-quality chemical solutions to industrial clients in Benin. We serve importers and manufacturers across major cities such as Cotonou, Porto-Novo, and Parakou, supplying consistent, high-purity Sodium Hydroxide (NaOH) to meet the country’s growing industrial demand. What is Caustic Soda?