LEGAL NOTICE AMENDMENT TO REGISTRATION OF A BUSINESS BEING CONDUCTED UNDER A TRADE NAME State of Georgia County of Muscogee The undersigned does hereby certify that (they are, it is) Amending an existing Trade Name Application IAW O.C.G.A. 10-1-493. The original Application was filed on 6/29/2004 in Book 4 Pg 572. The information being amended is Columbus Dialysis's address. The new information is as follows: 6228 Bradley Park Dr., Ste. B, Columbus GA 31904. The names and addresses of the person, firms or partnership authorized to amend said Trade Name is/are: Renal Treatment Centers - Mid-Atlantic, Inc., 2000 16th Street, Denver, CO 80202. Signature/Title: Stephanie N. Berberich, Secretary IPL0261440 Aug 10,17 2025