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Item 6. EXHIBITS.

9K characters. Original on sec.gov ·

Item 6. EXHIBITS.

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The documents listed below are being filed or have previously been filed on behalf of the Ameren Companies and are incorporated herein by reference from the documents indicated and made a part hereof. Exhibits not identified as previously filed are filed herewith.

Exhibit DesignationRegistrant(s)Nature of ExhibitPreviously Filed as Exhibit to:
Material Contracts
10.1AmerenForward Sale Agreement, dated May 12, 2025, between Ameren and Goldman Sachs & Co. LLC, as a Forward PurchaserMay 12, 2025 Form 8-K, Exhibit 10.1, File No. 1-14756
10.2AmerenForward Sale Agreement, dated May 12, 2025, between Ameren and JPMorgan Chase Bank, National Association, as a Forward PurchaserMay 12, 2025 Form 8-K, Exhibit 10.2, File No. 1-14756
10.3AmerenForward Sale Agreement, dated May 12, 2025, between Ameren and Barclays Bank PLC, as a Forward PurchaserMay 12, 2025 Form 8-K, Exhibit 10.3, File No. 1-14756
10.4AmerenForward Sale Agreement, dated May 12, 2025, between Ameren and Wells Fargo Bank, National Association, as a Forward PurchaserMay 12, 2025 Form 8-K, Exhibit 10.4, File No. 1-14756
10.5AmerenAdditional Forward Sale Agreement, dated May 13, 2025, between Ameren and Goldman Sachs & Co. LLC, as a Forward PurchaserMay 12, 2025 Form 8-K, Exhibit 10.5, File No. 1-14756
10.6AmerenAdditional Forward Sale Agreement, dated May 13, 2025, between Ameren and JPMorgan Chase Bank, National Association, as a Forward PurchaserMay 12, 2025 Form 8-K, Exhibit 10.6, File No. 1-14756
10.7AmerenAdditional Forward Sale Agreement, dated May 13, 2025, between Ameren and Barclays Bank PLC, as a Forward PurchaserMay 12, 2025 Form 8-K, Exhibit 10.7, File No. 1-14756
10.8AmerenAdditional Forward Sale Agreement, dated May 13, 2025, between Ameren and Wells Fargo Bank, National Association, as a Forward PurchaserMay 12, 2025 Form 8-K, Exhibit 10.8, File No. 1-14756
Rule 13a-14(a) / 15d-14(a) Certifications
31.1AmerenRule 13a-14(a)/15d-14(a) Certification of Principal Executive Officer of Ameren
31.2AmerenRule 13a-14(a)/15d-14(a) Certification of Principal Financial Officer of Ameren
31.3Ameren MissouriRule 13a-14(a)/15d-14(a) Certification of Principal Executive Officer of Ameren Missouri
31.4Ameren MissouriRule 13a-14(a)/15d-14(a) Certification of Principal Financial Officer of Ameren Missouri
31.5Ameren IllinoisRule 13a-14(a)/15d-14(a) Certification of Principal Executive Officer of Ameren Illinois
31.6Ameren IllinoisRule 13a-14(a)/15d-14(a) Certification of Principal Financial Officer of Ameren Illinois
Section 1350 Certifications
32.1AmerenSection 1350 Certification of Principal Executive Officer and Principal Financial Officer of Ameren
32.2Ameren MissouriSection 1350 Certification of Principal Executive Officer and Principal Financial Officer of Ameren Missouri
32.3Ameren IllinoisSection 1350 Certification of Principal Executive Officer and Principal Financial Officer of Ameren Illinois
Interactive Data Files
101.INSAmeren CompaniesInline XBRL Instance Document - the instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document
101.SCHAmeren CompaniesInline XBRL Taxonomy Extension Schema Document
101.CALAmeren CompaniesInline XBRL Taxonomy Extension Calculation Linkbase Document
101.LABAmeren CompaniesInline XBRL Taxonomy Extension Label Linkbase Document
101.PREAmeren CompaniesInline XBRL Taxonomy Extension Presentation Linkbase Document
101.DEFAmeren CompaniesInline XBRL Taxonomy Extension Definition Document
104Ameren CompaniesCover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101)

The file number references for the Ameren Companies’ filings with the SEC are: Ameren, 1-14756; Ameren Missouri, 1-2967; and Ameren Illinois, 1-3672.

Each registrant hereby undertakes to furnish to the SEC upon request a copy of any long-term debt instrument not listed above that such registrant has not filed as an exhibit pursuant to the exemption provided by Item 601(b)(4)(iii)(A) of Regulation S-K.

SIGNATURES

Pursuant to the requirements of the Exchange Act, each registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized. The signature for each undersigned company shall be deemed to relate only to matters having reference to such company or its subsidiaries.

AMEREN CORPORATION (Registrant)
/s/ Michael L. Moehn
Michael L. Moehn Senior Executive Vice President and Chief Financial Officer (Principal Financial Officer)
UNION ELECTRIC COMPANY (Registrant)
/s/ Michael L. Moehn
Michael L. Moehn Senior Executive Vice President and Chief Financial Officer (Principal Financial Officer)
AMEREN ILLINOIS COMPANY (Registrant)
/s/ Michael L. Moehn
Michael L. Moehn Senior Executive Vice President and Chief Financial Officer (Principal Financial Officer)

Date: August 4, 2025

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