Company: AILIM
Filing Date: 2025-09-16
Form Type: 424B2
Source: 0001104659-25-090464
Chunk: 81

Company: Ameren Illinois Co
Filing Date: 2025-09-16
Form: 424B2
Chunk 81
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 of such withdrawal), or

•

in an amount equal to 133 1 ∕ 3 % of the aggregate principal amount of any outstanding first mortgage bonds delivered to the mortgage trustee; or

(2)

upon our request, be applied to

•

the purchase of first mortgage bonds (at prices not exceeding 133 1 ∕ 3 % of the principal amount thereof) or

•

the redemption or payment at maturity of first mortgage bonds.

However, cash deposited with the mortgage trustee as the basis for the authentication and delivery of first mortgage bonds may only be withdrawn in an amount equal to the aggregate principal amount of first mortgage bonds we would be entitled to issue on any basis (with such entitlement being waived by operation of such withdrawal), or may, upon our request, be applied to the purchase, redemption or payment of first mortgage bonds at prices not exceeding, in the aggregate, the principal amount thereof.

Any first mortgage bonds received by the mortgage trustee pursuant to these provisions shall be cancelled by the mortgage trustee.

#### Resignation or Removal of the Mortgage Trustee
The mortgage trustee may resign at any time by giving written notice thereof to us or may be removed at any time by act of the holders of a majority in principal amount of first mortgage bonds then outstanding delivered to the mortgage trustee and us. No resignation or removal of the mortgage trustee and no appointment of a successor trustee will become effective until the acceptance of appointment by a successor trustee in accordance with the requirements of the mortgage indenture. So long as no mortgage event of default or event which, after notice or lapse of time, or both, would become a mortgage event of default has occurred and is continuing, if we have delivered to the mortgage trustee a resolution of our board of directors appointing a successor trustee and such successor has accepted such appointment in accordance with the terms of the mortgage indenture, the mortgage trustee will be deemed to have resigned and the successor will be deemed to have been appointed as trustee in accordance with the mortgage indenture.

#### Concerning the Mortgage Trustee
We and our affiliates maintain corporate trust and other banking relationships with The Bank of New York Mellon Trust Company, N.A. and its affiliates.

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TABLE OF CONTENTS

The Bank of New York Mellon Trust Company, N.A. is also acting as trustee under our senior secured indenture, our senior note indenture dated as of June 1, 2006, that was originally executed by CILCO, and our senior note indenture dated as of