one of the leading manufacturers of Pure Sodium Hydrosulphite (popularly known as Hydros) in India. We adopt a unique process for the manufacture of Sodium Hydrosulphite, known as ''Sodium Formate Process'', as against the conventional method of Zinc or Amalgam Process. The advantage of Sodium Formate Process is that the end product does not contain even traces of Zinc Iron or Mercury.who have supplied both the imported equipment and the process know how for the plant. This is the only plant in India and among the five in the world, using this unique. ''Sodium Formate Process''.