280 Cedar Grove Road
PA 19428-2240 USA Conshohocken
United States

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Zeolyst International is a leading supplier of specialty zeolite powders, catalysts, and adsorbents for the petroleum, petrochemicals, chemicals, and emission control markets. Zeolyst International is a Kansas general partnership that is owned 50/50 by PQ Corporation and CRI Zeolytes Inc., a CRI/Criterion subsidiary and member of the Royal Dutch Shell Group of companies.