RICHMOND, Va.--(BUSINESS WIRE)--Sep 17, 2025--

NewMarket Corporation (NYSE: NEU) today announced its entry into a definitive purchase agreement to acquire Mars TopCo, LLC, the ultimate parent company of Calca Solutions, LLC (Calca). Calca is currently a portfolio company of AE Industrial Partners, LP.

Based in Lake Charles, Louisiana, Calca is the leading U.S. manufacturer of UltraPure and high purity hydrazine – mission critical chemicals used in a wide range of applications. Most notably, these products are utilized for in-space propulsion by satellites, space probes and other space vehicles. Calca has been providing high purity hydrazine to the Department of Defense’s Defense Logistics Agency – Energy for over 70 years. Beyond aerospace, Calca’s hydrazine derivatives play a vital role

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