Second Amendment, dated December 18, 2024, to TXNM 2024 Officer Annual Incentive Plan

PNM Resources, Inc. previously adopted the 2024 Officer Annual Incentive Plan (the “Plan”). The Plan has been amended on one prior occasion. Effective as of August 2, 2024, PNM Resources, Inc. was changed its name to TXNM Energy, Inc. (the “Company”). By this instrument, the Company desires to amend the Plan as set forth below.

1.This Second Amendment shall be effective as of December 3, 2024.

2.Table 3 (Awards Levels Table) of Attachment A to the Plan is hereby amended and restated to read as attached as Exhibit 1 hereto.

3.This Second Amendment amends only the provisions of the Plan as noted above, and those provisions not expressly amended shall be considered in full force and effect. Notwithstanding the foregoing, this Second Amendment shall supersede the provisions of the Plan to the extent those provisions are inconsistent with the provisions and intent of this Second Amendment.

IN WITNESS WHEREOF, the Company has caused this Second Amendment to be executed by its duly authorized representative on this 18 day of December, 2024.