MALVERN, Pa.–(BUSINESS WIRE)–PQ Group Holdings Inc. announced that it has filed a registration statement on Form S-1 with the U.S. Securities and Exchange Commission relating to the proposed initial public offering of its common stock. The number of shares to be offered and the price range for the proposed offering have not yet been determined. PQ intends to apply to list its common stock on the New York Stock Exchange under the proposed symbol “PQG.”

The offering will be made only by means of a prospectus. When available, a copy of the preliminary prospectus may be obtained from the offices of Morgan Stanley & Co. LLC, Attention: Prospectus Department, 180 Varick Street, 2nd Floor, New York, New York 10014.

About PQ Group Holdings, Inc.

PQ Group Holdings, Inc. is an integrated, global provider of catalysts, specialty materials and chemicals, and services. Our environmental catalysts and services business is a leading global innovator and producer of catalysts for the refinery, emissions control, and petrochemical industries and is also a leading provider of catalyst recycling services to the North American refining industry. Our performance materials and chemicals business is a silicates and specialty materials producer with leading supply positions in North America, Europe, South America, and Asia serving diverse and growing end uses such as personal and industrial cleaning products, fuel efficient tires, surface coatings, and food and beverage products.