NOTICE OF RATE CHANGE REQUEST Texas-New Mexico PowerCompany ("TNMP") publishes this notice that on November 14, 2025, TNMP filed with the Public Utility Commission of Texas ("Commission") its Petition and Statement of Intent to Change Rates, a copy of which is kept at TNMP's office at 577 N. Garden Ridge Blvd, Lewisville, Texas 75067. This notice is being published pursuant to 16 Tex. Admin. Code § 22.51(a) (1). TNMP's rate filing, based on the system-wide financial results for a 12-month test year ending on June 30, 2025, adjusted for known and measurable changes, supports a net increase in transmission and distribution rates of approximately $34 million over adjusted test-year revenues, or approximately a 5% increase over adjusted test-year revenues of $673 million.Test-year revenues have been adjusted to normalize billing units, to remove the revenues associated with TNMP's Energy Efficiency Cost Recovery Factor, and to increase test-year revenues to reflect Transmission Cost of Service ("TCOS"), Distribution Cost Recovery Factor("DCRF"), and Transmission Cost Recovery Factor("TCRF") adjustments. TCOS revenue was adjusted to include the September 19, 2025 interim update rates at 2024 ERCOT 4CP. DCRF revenue was adjusted to include the June 29, 2025 interim update approved in Docket No. 57816. TCRF revenue was adjusted to equal the September 1, 2025 TCRF revenue requirement reflected on Line 2, Attachment A of TNMP's petition filed and approved in Docket No. 58161. In addition, TNMP is requesting recovery of $20.5 million for Hurricane Beryl restoration costs to be collected over 5 years with carrying charges. If approved, the increased rates will be charged to TNMP's direct customers, all retail electric providers ("REPs"), in those portions of TNMP's service area under the original jurisdiction of the Commission. Each such REP is potentially affected by the proposed change. Depending on the REPs' actions, the end-use customer classes of such REPs are potentially affected by the proposed change. In addition, the result couldbe a change in TNMP's transmission cost of service rates, which would impact all load serving entities in the Electric Reliability Council of Texas. TNMP has requested a December 23, 2025 effective date for its proposed rate change. Persons who wish to intervene in or comment upon these proceedings, in Docket No. 58964, Application of Texas-New Mexico Power Company for Authority to Change Rates, should notify the Commission as soon as possible, as an intervention deadline will be imposed. A request to intervene or for further information should be mailed to the Public Utility Commission of Texas, P.O.Box 13326, Austin, Texas 78711-3326. Further information may also be obtained by calling the Commission at (512) 936-7120 or (888)782-8477. Hearing and speech-impaired individuals may contact the Commission through Relay Texas at 1-800-735-2989. The deadline for intervention in this proceeding is 45 days after the date the application was filed with the Commission. Texas-New Mexico PowerCompany November 21, 28, December 5, 12 2025 LACO0408358