American Pacific Corporation Announces Production Expansion

CEDAR CITY, Utah, April 21, 2025--(BUSINESS WIRE)--On April 15, 2025, the Board of Directors of American Pacific Corporation (AMPAC), a subsidiary of NewMarket Corporation (NYSE: NEU), met and approved a capital investment of up to $100 million to expand its ammonium perchlorate production capabilities in support of growing solid rocket motor demand. This anticipated investment will allow AMPAC to construct an additional production line, increasing capacity by more than 50%. The increased capacity will allow AMPAC to meet the demand of U.S. military and space launch programs, while also addressing the needs of U.S. allies in these critical areas. The project remains subject to approval by NewMarket’s board of directors, and is currently scheduled to be completed during 2026.

Kris Griffith, President of AMPAC, said: "I am excited about this anticipated investment. Our customers are investing to increase solid rocket motor manufacturing capacity to keep pace with the rising global demand for missile production and space launch. This anticipated investment by AMPAC demonstrates our commitment to invest alongside our commercial partners in support of these important initiatives with national security implications."

ABOUT AMPAC

Based in Cedar City, Utah, AMPAC is the leading North American manufacturer of critical performance additives used in solid rocket motors for space launch and military defense applications. AMPAC is qualified on many NASA and Department of Defense programs, and has been serving space launch and national defense programs for more than 60 years. AMPAC also manufactures Halotron BrX, a clean and environmentally friendly fire extinguishing agent that replaces legacy high ozone-depleting fire extinguishing agents. Founded in 1955, AMPAC has one operating facility and approximately 170 full-time employees. NewMarket acquired AMPAC in January of 2024, which expanded NewMarket’s exposure to mission critical, resilient sectors.

ABOUT NEWMARKET

NewMarket Corporation (NYSE: NEU) is a holding company operating through its subsidiaries, Afton Chemical Corporation (Afton), Ethyl Corporation (Ethyl), and AMPAC. The Afton and Ethyl companies develop, manufacture, blend, and deliver chemical additives that enhance the performance of petroleum products. AMPAC is a manufacturer of specialty materials primarily used in solid rocket motors for the aerospace and defense industries. The NewMarket family of companies has a long-term commitment to its people, to safety, to providing innovative solutions for its customers, and to making the world a better place.