J. D. Heiskell Holdings LLC

CLOSEOUT LETTER J. D. Heiskell Holdings LLC MARCS-CMS 700893 — March 20, 2026 More Warning Letters Warning Letters About Warning and Close-Out Letters Delivery Method: VIA EMAIL NO HARD COPY TO FOLLOW Product: Animal & Veterinary Recipient: Recipient Name Bradley R. More Recipient Title Plant Manager J. D. Heiskell Holdings LLC 2407 Warren Ave Twin Falls , ID 83301-7978 United States bmore@jdhco.com Issuing Office: Center for Veterinary Medicine United States Secondary Issuing Offices United States Dear Mr. More, The United States Food and Drug Administration has completed evaluation of your facility’s corrective actions in response to our Warning Letter CMS 700893, dated June 12, 2025. Based on our evaluation, it appears that you have addressed the violations contained in this Warning Letter. Future FDA inspections and regulatory activities will further assess the adequacy and sustainability of these corrections. This letter does not relieve you or your facility from the responsibility of taking all necessary steps to assure sustained compliance with the Federal Food, Drug, and Cosmetic Act and its implementing regulations or with other relevant legal authority. The Agency expects you and your facility to maintain compliance and will continue to monitor your state of compliance. This letter will not preclude any future regulatory action should violations be observed during a subsequent inspection or through other means. Sincerely, /S/ Kelli Wilkinson Branch Chief, Compliance Action Branch Center for Veterinary Medicine U.S. Food and Drug Administration Tel: 313-393-8144 Content current as of: 03/27/2026 Regulated Product(s) Animal & Veterinary