Stepan Company, a manufacturer of specialty chemicals, completed the acquisition of a surfactant business from PerformanX, a producer of surfactants and related chemistries. Financial terms were not disclosed. "Alkoxylates are a core surfactant technology critical to Stepan's agriculture, oilfield, construction and household end use markets. We are pleased to have closed the acquisition of PerformanX and welcome PerformanX's customers to Stepan," Scott R. Behrens, Stepan Company CEO.