Caustic soda is an essential raw material and process chemical in many industrial operations. ASC delivers Caustic Soda in 48% solution (Liquid Caustic Soda) and in solid form (Flake Caustic Soda, 98%). Pulp and paper is among the largest application for caustic soda worldwide, where it is used as a raw material in the pulping and bleaching process, in de-inking of waste paper, and in water treatment.