PKC

PKC makes basic industrial chemicals, chiefly chlorine, caustic soda, hydrochloric acid, hydrogen, and sodium hypochlorite, by electrolyzing salt and water, a process known as chlor-alkali production.

These chemicals serve as foundational raw materials across a wide range of industries, including water treatment, paper, food processing, textiles, and petrochemicals. Listed on KOSPI, Korea's main stock exchange, the company earns the large majority of its revenue from this chlor-alkali business, while a smaller specialty-materials division supplies ultra-high-purity gases to semiconductor and display manufacturers.