27 According to the latest report by IMARC Group, titled “Caustic Soda Market: Global Industry Trends, Share, Size, Growth, Opportunity and Forecast 2021-2026”, The global caustic soda market reached a volume of 80.7 Million Tons in 2020. Caustic soda (NaOH), also known as sodium hydroxide or lye, is an inorganic compound which is obtained by the electrolysis of sodium chloride (NaCl). It is an alkali metal hydroxide that exists as a non-flammable, odorless and white crystalline solid. For industrial applications, caustic soda is mostly available as pellets, beads, granules, sticks, flakes and fused masses. Being a versatile alkali, it is utilized as a primary feedstock in chemical manufacturing, metal cleaning and processing; laundering and bleaching; electrolytic extracting; oxide coating; and petroleum refining.