Company: AILIM
Filing Date: 2025-09-16
Form Type: 424B2
Source: 0001104659-25-090464
Chunk: 50

Company: Ameren Illinois Co
Filing Date: 2025-09-16
Form: 424B2
Chunk 50
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 to the knowledge of the officer signing such certificate, we are in compliance with the conditions and covenants under the senior secured indenture.

#### Modification
The senior secured trustee and we may modify and amend the senior secured indenture with the consent of the holders of a majority in principal amount of the outstanding senior secured debt securities, considered as one class, provided that no such modification or amendment may, without the consent of the holder of each outstanding senior secured debt security affected thereby:

•

change the maturity date of any senior secured debt security;

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reduce the rate, or change the method of calculation thereof, or extend the time of payment of interest on any senior secured debt security;

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reduce the principal amount of, or premium payable on, any senior secured debt security;

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change the coin or currency of any payment of principal of, premium, if any, or interest on any senior secured debt security;

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change the date on which any senior secured debt security may be redeemed or adversely affect the rights of a holder to institute suit for the enforcement of any payment on any senior secured debt security;

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impair the interest of the senior secured trustee in any senior note mortgage bonds or, prior to the release date, reduce the principal amount of any series of senior note mortgage bonds to an amount less than the principal amount of the related series of senior secured debt securities or alter the payment provisions of those senior note mortgage bonds in a manner adverse to the holders of the senior secured debt securities; or

•

modify the foregoing requirements or reduce the percentage of outstanding senior secured debt securities necessary to modify or amend the senior secured indenture or to waive any past default to less than a majority.

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TABLE OF CONTENTS

The senior secured trustee and we may modify and amend the senior secured indenture without the consent of the holders:

•

to change or eliminate any of the provisions of the senior secured indenture, provided that any such change or elimination shall become effective only when there are no outstanding senior secured debt securities created prior to the execution of such supplemental indenture which is entitled to the benefit of such provision or such change or elimination is applicable only to senior secured debt securities issued after the effective date of such change or elimination;

•

to establish the form of the senior secured debt securities of any series as permitted by the senior secured indenture or to establish or reflect any terms of the senior secured debt securities of any series as determined by the senior secured indenture;

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to evidence the succession of another corporation to us as permitted by the