PUBLIC NOTICE LOUISIANA DEPARTMENT OF ENVIRONMENTAL QUALITY (LDEQ) LION COPOLYMER LLC/GEISMAR FACILITY ADMINISTRATIVE COMPLETENESS DETERMINATION The LDEQ, Office of Environmental Services, has reviewed a Hazardous Waste Class III Modification from Lion Copolymer LLC, P.O. Box 397, Geismar, LA 70734-0397 for the Geismar Facility and determined that it is administratively complete. The application was received on October 10, 2025. The facility is located at 36191 Highway 30 in Geismar, Ascension Parish. Lion Copolymer LLC proposes to obtain a Class III Permit Modification for its Cell A of Former Waste Lagoon System. Inquiries or requests for additional information regarding this application should be directed to Waste Permits Division, LDEQ, P.O. Box 4313, Baton Rouge, LA 70821-4313, phone (225) 219-3043. Persons wishing to be included on the LDEQ permit public notice mailing list, wishing to receive the permit public notices via email by subscribing to the LDEQ permits public notice List Server, or for other public participation related questions should contact the Public Participation Group in writing at LDEQ, P.O. Box 4313, Baton Rouge, LA 70821-4313, by email at DEQ.PUBLICNOTICES@LA.GOV or contact the LDEQ Customer Service Center at (225)219-LDEQ (219-5337). Permit public notices can be viewed at the LDEQ permits public notice webpage at http://www.deq.louisiana.gov/public-notices and general information related to the public participation in permitting activities can be viewed at http://www.deq.louisiana.gov/page/the-public-participation-group. All correspondence should specify AI Number 1433, Permit Number LAD 008 194 060-PC-RN-2, and Activity Number PER20250001. December 11 2025 LLOU0416856