( November 13, 2025, 2:58 PM EST) -- RICHMOND, Va. — The Chemours Co. FC LLC on Nov. 12 filed a reply brief in the Fourth Circuit U.S. Court of Appeals arguing that an environmental advocacy group “contravenes controlling case law” in its brief responding to Chemours’ appeal of a trial court decision in a per- and polyfluoroalkyl substances XE "per- and polyfluoroalkyl substances" (PFAS) contamination case. Chemours says that the group seeks “to turn every exceedance of any environmental permit, no matter how minor, into a basis for an injunction, substituting judicial relief for regulatory solutions.”...