Ecovyst Inc. operates as a pure-play environmental services and specialty chemicals company following the strategic divestiture of its Advanced Materials & Catalysts business. The company's core Ecoservices segment generates revenue through two main streams: regeneration and treatment services, and the sale of virgin sulfuric acid for industrial, mining, and automotive applications. Ecovyst holds a dominant position in the North American merchant sulfuric acid regeneration market, strategically operating near major Gulf Coast and California refining hubs. Its closed-loop recycling process is a critical enabler for refineries producing high-octane, low-emission alkylate fuels. Additionally, the company supplies virgin sulfuric acid and sulfur derivatives that are essential for copper mining, water treatment, and advanced polymer synthesis.