Spire Tennessee subsidiary enters $825M senior notes private placement for acquisition financing

On December 17, 2025, Spire Tennessee Inc. (“Spire Tennessee”), a wholly owned subsidiary of Spire Inc. (“Spire”), entered into a Master Note Purchase Agreement, dated as of December 17, 2025 (the “MNPA”), with the institutional investors listed in the Purchaser Schedule thereto (the “Purchasers”). Pursuant to the MNPA, Spire Tennessee has authorized the issuance and sale, in a private placement exempt from registration under the Securities Act of 1933, as amended, of an aggregate $825,000,000 principal amount of its Series 2026 Senior Notes in five tranches as follows: $130,000,000 Series 2026 Senior Notes, Tranche A, due April 1, 2029; $160,000,000 Series 2026 Senior Notes, Tranche B, due April 1, 2031; $105,000,000 Series 2026 Senior Notes, Tranche C, due April 1, 2033; $250,000,000 Series 2026 Senior Notes, Tranche D, due April 1, 2036; and $180,000,000 Series 2026 Senior Notes, Tranche E, due April 1, 2038 (collectively, the “Senior Notes”).