INEOS KOH is a leading manufacturer of potassium hydroxide (KOH), sometimes referred to as caustic potash. Our Ashtabula, Ohio site has been operating since the early 1960s. Our focus is on markets and products that provide sustained, profitable growth for our core potassium hydroxide chemistry. We service our customers from our Ashtabula production site and a network of terminals and warehouses strategically located in the U.S. and Canada. Our site in Ashtabula has been certified ISO:9001 since 1998 and is also certified in conformance with the requirements set forth by RCMS:2019. INEOS KOH makes Liquid Potassium Hydroxide, Liquid Potassium Carbonate, Hydrochloric Acid and Liquid Chlorine which are NSF certified and comply with the ANSI/NSF 60 requirements of the NSF International. The NSF sets the guidelines and policies for the qualification of chemicals used as drinking water additives. Our main products are also Kosher certified.