NOTICE OF NEGOTIATED SALE OF CERTIFICATES Public notice is hereby given by Joint School District No. 2, Ada and Canyon Counties, State of Idaho ("the District"), of negotiation for and private sale to Piper Sandler & Co. (the "Underwriter") of the (i) Joint School District No. 2 (West Ada), Ada and Canyon Counties, State of Idaho Annual Appropriation Certificates of Participation, Series 2026A (Tax-Exempt), and (ii) Joint School District No. 2 (West Ada), Ada and Canyon Counties, State of Idaho Annual Appropriation Certificates of Participation, Series 2026B (Taxable) (collectively, the "Certificates") pursuant to a Certificate Purchase Agreement between the District and the Underwriter to be executed on the date of sale of the Certificates, and setting forth the final terms and provisions of the Certificates. The Certificates were authorized to be issued by the Board of Trustees of the District pursuant to that Resolution adopted September 28, 2026 (the "Resolution"). The sale of the Certificates, upon satisfying certain requirements contained in the Resolution pursuant to Idaho Code Section 57-235, is expected to occur on or around October 27, 2026. Additional information concerning the terms and provisions of the Certificates, the contents of the District's Preliminary Official Statement with respect to the issuance and sale of the Certificates, the security for payment of the Certificates, and other pertinent information relating to the Certificates is available for public inspection at the administrative offices of the District: 1303 East Central Drive, Meridian, ID 83642. By order of the Board of Trustees of the District. Dated: September 28, 2026. Joint School District No. 2, Ada and Canyon Counties, State of Idaho IPL0382925 Oct 21 2026