EXHIBIT 4.15 INCORPORATED UNDER THE COOPERATIVE ASSOCIATION LAWS OF COLORADO Number Shares ALLIANCE FARMS COOPERATIVE ASSOCIATION a Colorado cooperative association This Certificate of Membership also represents shares of Class C common stock of the Association. 2,500 shares of Class C common stock authorized, $0.01 par value THIS CERTIFIES THAT is a member of, and is the owner of Shares of the Class C Common Stock of, ALLIANCE FARMS COOPERATIVE ASSOCIATION, transferable by the holder hereof on the books of the Association in person or by duly authorized attorney only upon surrender of this Certificate properly endorsed. The Articles of Incorporation of the Association, as from time to time amended, the Bylaws of the Association, as from time to time amended, and the laws of the State of Colorado, as from time to time amended, are by reference incorporated herein, and the holder hereof, by accepting this Certificate, consents to the provisions thereof and agrees to be bound thereby. (See reverse for limitations and other provisions.) IN WITNESS WHEREOF, the Association has caused this Certificate to be signed by its duly authorized officers this day of A.D. 19 . PRESIDENT SECRETARY Sale, transfer or hypothecation of the shares represented by this certificate is restricted by the provisions of the Colorado cooperative association law and the Articles of Incorporation and Bylaws of Alliance Farms Cooperative Association (the "Company"), a copy of which provisions may be inspected at the principal offices of the Company, and all provisions of which are hereby incorporated by reference in this certificate. CERTIFICATE of Membership and Shares of the Class C Common Stock of ALLIANCE FARMS COOPERATIVE ASSOCIATION ISSUED TO DATE For Value Received, hereby sell, assign and transfer unto Shares of the Class C Common Stock represented by the within Certificate, and do hereby irrevocably constitute and appoint attorney to transfer the said Stock on the books of the within named Association with full power of substitution in the premises. Dated 19 In presence of