NOTICE OF PRIVATE NEGOTIATED BOND SALE Pursuant to Idaho Code Section 57-215(2), public notice is hereby given by the City of Boise City, Ada County, Idaho (the "City"), of negotiation for and private sale to BofA Securities, Inc. (the "Underwriter") of its Water Renewal Revenue Bonds, Series 2026, in the principal amount not to exceed $50,000,000 (the "Bonds") pursuant to a Bond Purchase between the City and the Underwriter ("Bond Purchase Agreement") to be executed on the date of sale of the Bonds and setting forth the final terms and provisions of the Bonds. The Bonds are authorized to be issued by the City's Council pursuant to Ordinance No. ORD-24-22, adopted on May 17, 2022 (the "Master Ordinance"), and Ordinance No. ORD-23-26, adopted June 2, 2026 (the "Series Ordinance" and together with the Master Ordinance, the "Bond Ordinance"). The sale of the Bonds, upon satisfying certain requirements contained in the Series Ordinance pursuant to Idaho Code Section 57-235, is expected to occur on or around June 16, 2026. Additional information concerning the terms and provisions of the Bonds, the Bond Ordinance, the Bond Purchase Agreement, the security for payment of the Bond, and other pertinent information relating to the Bonds is available for public inspection at the offices of the City at 150 N. Capitol Boulevard, Boise, Idaho, attention David Hasegawa, Treasurer. Dated: June 9, 2026. CITY OF BOISE CITY, ADA COUNTY, IDAHO By: David Hasegawa, City Treasurer IPL0347973 Jun 12 2026