Document:

Exhibit 10.1

 

 

AMENDMENT TO AMENDED
AND RESTATED LOAN PURCHASE AND SALE

AGREEMENT

 

THIS AMENDMENT TO AMENDED
AND RESTATED LOAN PURCHASE AND SALE AGREEMENT (the “Amendment”), effective as of June 28, 2021, is by and
among STADCO NEW ACQUISITION, LLC, a Delaware limited liability company (“Purchaser”), SUNFLOWER BANK, N.A. (“Seller”),
Stadco, a California corporation (“Borrower”), STADCO ACQUISITION, LLC, a California limited liability company (“Stadco
Acquisition”) and STADCO MEXICO, INC., Delaware corporation (collectively, with Stadco Acquisition, the “Guarantors”).
Capitalized terms used herein but not otherwise defined shall have the meaning ascribed to them in the Purchase Agreement (as defined
below).

 

BACKGROUND

 

WHEREAS, whereas Purchaser,
Seller, Borrower, and the Guarantors entered into that certain Amended and Restated Loan Purchase and Sale Agreement dated as of April
23, 2021 (the “Purchase Agreement”); and

 

WHEREAS, Purchaser,
Seller, Borrower, and the Guarantors now desire to amend the Purchase Agreement as set forth herein.

 

NOW, THEREFORE, for
good and valuable consideration, the receipt and sufficiency of which is hereby acknowledged, the parties hereto agree as follows:

 

1.       Amendment
of Section 1.2. Section 1.2 of the Purchase Agreement is hereby deleted in its entirety and replaced with the following:

 

“Closing to take place within
fifteen (15) business days after notice by Seller that Borrower and Seller have filed for forgiveness of the PPP Loan with the U.S. Small
Business Administration (“SBA”). As of the date of this Agreement, the Closing Date is anticipated to be on or about June
15, 2021, with a grace period until July 30, 2021, if required by the parties hereto to consummate the transactions described herein.
If the SBA should reject the filing for forgiveness as incomplete or otherwise defective prior to the Closing, the Closing shall be postponed
until the filing is rectified.”

 

2.       Counterparts.
This Amendment may be executed in one or more counterparts, each of which shall be deemed an original but all of which together will constitute
one and the same instrument. Delivery of an executed counterpart of a signature page to this Amendment by facsimile, portable document
format or other electronic means shall be effective as delivery of a manually executed counterparty to this Amendment.

 

3.       Governing
Law. This Amendment shall be governed by and shall be construed in accordance with the laws of the State of Colorado. Except as
modified by this Amendment, the Purchase Agreement shall remain in full force and effect without change.

 

[Signature Page Follows]

 

     

     

    

 

 

IN WITNESS WHEREOF,
the parties hereto have executed this Amendment to Amended and Restated Loan Purchase and Sale Agreement on the day and year first above
written.

 

 

	 	SELLER:
	 
	 	SUNFLOWER BANK, N.A.
	 	 
		By:	/s/ Kevin Krebaum	 
		Name:	Kevin Krebaum	 
		Title:	Special Asset Officer	 
	 	 
	 	PURCHASER:
	 	 
	 	STADCO NEW ACQUISITION, LLC
	 	 
		By:	 /s/ Alexander Shen	 
		Name:	Alexander Shen	 
		Title:	Chief Executive Officer	 
	 	 
	 	 
	
	 	BORROWER:
		STADCO
	 	 
		By:	/s/ Douglas A. Paletz	 
		Name:	Douglas A. Paletz	 
		Title:	President	 
	 	 
	 	 
	 	GUARANTORS:
	 	 
	 	STADCO Acquisition, LLC
	 	 
		By:	 /s/ Babak Parsi	 
		Name:	Babak Parsi	 
		Title:	President	 
	 	 
	 	 
	 	STADCO Mexico, Inc.
	 	 
	 	 
		By:	 /s/ Babak Parsi	 
		Name:	Babak Parsi	 
		Title:	President / Officer	 

 

 

Signature Page to Amendment to Amended and Restated
Loan Purchase AgreementExhibit 4.2

 

WHEN RECORDED MAIL TO:

Ameren Illinois Company

Craig W. Stensland

One Ameren Plaza (MC 1310)

1901 Chouteau Avenue

St. Louis, MO 63103

 

AMEREN ILLINOIS COMPANY

(SUCCESSOR TO ILLINOIS POWER COMPANY)

 

TO

 

THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A.

 

AS SUCCESSOR TRUSTEE TO

 

HARRIS TRUST AND SAVINGS BANK

 

 

 

SUPPLEMENTAL INDENTURE

 

DATED AS OF JUNE 1, 2021

 

TO

 

GENERAL MORTGAGE INDENTURE AND DEED OF TRUST

 

DATED AS OF NOVEMBER 1, 1992

 

 

 

This instrument was prepared by Chonda J. Nwamu, Esq., Senior Vice
President, General Counsel and Secretary of Ameren Illinois Company c/o Ameren Corporation, One Ameren Plaza, 1901 Chouteau Avenue, St.
Louis, Missouri 63103.

 

 

 

     

     

    

 

SUPPLEMENTAL INDENTURE dated as of June 1, 2021
(this “Supplemental Indenture”), made by and between AMEREN ILLINOIS COMPANY (formerly named Central Illinois Public
Service Company (“CIPS”) and successor to Illinois Power Company (“IP”) pursuant to the Merger,
as defined below), a corporation organized and existing under the laws of the State of Illinois (hereinafter sometimes called the “Company”),
party of the first part, and THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., a national banking association organized and existing under
the laws of the United States, as successor trustee to Harris Trust and Savings Bank, as Trustee (the “Trustee”) under
the General Mortgage Indenture and Deed of Trust dated as of November 1, 1992, hereinafter mentioned, party of the second part;

 

WHEREAS, the Company has heretofore executed
and delivered its General Mortgage Indenture and Deed of Trust dated as of November 1, 1992 as from time to time amended and supplemented
(the “Indenture”), to the Trustee, for the security of the Bonds issued and to be issued thereunder (the “Bonds”);
and

 

WHEREAS, as of 12:01 a.m. Central Time (the
“Effective Time”) on October 1, 2010, pursuant to the Agreement and Plan of Merger dated as of April 13, 2010 among
CIPS, IP and Central Illinois Light Company (“CILCO”), IP and CILCO were merged with and into the Company (the “Merger”)
whereby the Company is the surviving corporation; and

 

WHEREAS, pursuant to Sections 13.01 and
14.01(a) of the Indenture, the Company and the Trustee executed the Supplemental Indenture dated as of October 1, 2010 whereby, among
other things, the Company (a) assumed the due and punctual payment of the principal of and premium, if any, and interest, if any,
on all of the Bonds then Outstanding and the performance and observance of every covenant and condition of the Indenture to be performed
or observed by IP and (b) subjected to the Lien of the Indenture all equipment and fixtures (other than Excepted Property, which is expressly
excepted and excluded from the Lien of the Indenture) that were owned by CIPS immediately prior to the Effective Time and were of the
same kind and character as the Mortgaged Property immediately prior to the Effective Time; and

 

WHEREAS, pursuant to Sections 13.02 and
14.01(a)(i) of the Indenture, the Company has succeeded to, and has been substituted for, and may exercise every right and power of, IP
under the Indenture with the same effect as if the Company had been named the “Company” in the Indenture; and

 

WHEREAS, pursuant to Section 14.01(a) of
the Indenture, the Company and the Trustee executed 59 Supplemental Indentures dated as of January 15, 2011 subjecting to the Lien
of the Indenture certain real property that was owned by CIPS immediately prior to the Merger; and

 

WHEREAS, pursuant to Section 14.01(a) of
the Indenture, the Company and the Trustee executed the Supplemental Indenture dated as of October 15, 2019 whereby, among other things,
the Company subjected to the Lien of the Indenture (a) all equipment and fixtures (other than Excepted Property, which is expressly excepted
and excluded from the Lien of the Indenture) that were owned by CILCO immediately prior to the Merger and were of the same kind and character
as the Mortgaged Property immediately prior to the Merger (the “CILCO Equipment and Fixtures”), (b) all property, real,
personal and mixed, acquired by the Company after the Merger (other than Excepted Property, which is expressly excepted and excluded from
the Lien of the Indenture) which constitutes an improvement, extension or addition to the CILCO Equipment and Fixtures or a renewal, replacement
or substitution of or for any part thereof, and (c) all franchises, permits, licenses, easements and rights of way that are owned by the
Company and are transferable and necessary for the operation and maintenance of the Mortgaged Property; and

 

WHEREAS, pursuant to Section 14.01(a) of
the Indenture, the Company and the Trustee executed 20 Supplemental Indentures dated as of December 15, 2019 subjecting to the Lien
of the Indenture certain real property that was owned by CILCO immediately prior to the Merger; and

 

    2 

     

    

 

WHEREAS, pursuant to the terms and provisions
of the Indenture there were created and authorized by supplemental indentures thereto bearing the following dates, respectively, the Bonds
of the series issued thereunder and respectively identified opposite such dates:

 

	
    DATE OF

SUPPLEMENTAL

INDENTURE
	
    IDENTIFICATION OF SERIES
	
    CALLED

	 	 	 
	February 15, 1993	8% Series due 2023 (redeemed)	Bonds of the 2023 Series
	March 15, 1993	6 1/8% Series due 2000 (paid at maturity)	Bonds of the 2000 Series
	March 15, 1993	6 3/4% Series due 2005 (paid at maturity)	Bonds of the 2005 Series
	July 15, 1993	7 1/2% Series due 2025 (redeemed)	Bonds of the 2025 Series
	August 1, 1993	6 1/2% Series due 2003 (paid at maturity)	Bonds of the 2003 Series
	October 15, 1993	5 5/8% Series due 2000 (paid at maturity)	Bonds of the Second 2000 Series
	November 1, 1993	Pollution Control Series M (redeemed)	Bonds of the Pollution Control Series M
	November 1, 1993	Pollution Control Series N (redeemed)	Bonds of the Pollution Control Series N
	November 1, 1993	Pollution Control Series O (redeemed)	Bonds of the Pollution Control Series O
	April 1, 1997	Pollution Control Series P (retired)	Bonds of the Pollution Control Series P
	April 1, 1997	Pollution Control Series Q (retired)	Bonds of the Pollution Control Series Q
	April 1, 1997	Pollution Control Series R (retired)	Bonds of the Pollution Control Series R
	March 1, 1998	Pollution Control Series S (redeemed)	Bonds of the Pollution Control Series S
	March 1, 1998	Pollution Control Series T (redeemed)	Bonds of the Pollution Control Series T
	July 15, 1998	6 1/4% Series due 2002 (paid at maturity)	Bonds of the 2002 Series
	September 15, 1998	6% Series due 2003 (paid at maturity)	Bonds of the Second 2003 Series
	June 15, 1999	7.50% Series due 2009 (paid at maturity)	Bonds of the 2009 Series
	July 15, 1999	Pollution Control Series U (redeemed)	Bonds of the Pollution Control Series U
	July 15, 1999	Pollution Control Series V (redeemed)	Bonds of the Pollution Control Series V
	May 1, 2001	Pollution Control Series W (retired)	Bonds of the Pollution Control Series W
	May 1, 2001	Pollution Control Series X (retired)	Bonds of the Pollution Control Series X

 

    3 

     

    

 

	
    DATE OF

SUPPLEMENTAL

INDENTURE
	
    IDENTIFICATION OF SERIES
	
    CALLED

	 	 	 
	July 1, 2002	10 5/8% Series due 2007 (not issued)	Bonds of the 2007 Series
	July 1, 2002	10 5/8% Series due 2012 (not issued)	Bonds of the 2012 Series
	December 15, 2002	11.50% Series due 2010 (redeemed)	Bonds of the 2010 Series
	June 1, 2006	Mortgage Bonds, Senior Notes Series AA (retired)	Bonds of Series AA
	August 1, 2006	Mortgage Bonds, 2006 Credit Agreement Series Bonds (retired)	2006 Credit Agreement Series Bonds
	March 1, 2007	Mortgage Bonds, 2007 Credit Agreement Series Bonds (retired)	2007 Credit Agreement Series Bonds
	November 15, 2007	Mortgage Bonds, Senior Notes Series BB (retired)	Bonds of Series BB
	April 1, 2008	Mortgage Bonds, Senior Notes Series CC (retired)	Bonds of Series CC
	October 1, 2008	Mortgage Bonds, Senior Notes Series DD (retired)	Bonds of Series DD
	June 15, 2009	Mortgage Bonds, 2009 Credit Agreement Series Bonds (retired)	2009 Credit Agreement Series Bonds
	October 1, 2010	Mortgage Bonds, Senior Notes Series CIPS-AA	Series CIPS-AA Mortgage Bonds
	October 1, 2010	Mortgage Bonds, Senior Notes Series CIPS-BB (retired)	Series CIPS-BB Mortgage Bonds
	October 1, 2010	Mortgage Bonds, Senior Notes Series CIPS-CC	Series CIPS-CC Mortgage Bonds
	August 1, 2012	First Mortgage Bonds, Senior Notes Series EE	Bonds of Series EE
	December 1, 2013	First Mortgage Bonds, Senior Notes Series FF	Bonds of Series FF
	June 1, 2014	First Mortgage Bonds, Senior Notes Series GG	Bonds of Series GG
	December 1, 2014	First Mortgage Bonds, Senior Notes Series HH	Bonds of Series HH
	December 1, 2015	First Mortgage Bonds, Senior Notes Series II	Bonds of Series II
	November 1, 2017	3.70% First Mortgage Bonds due 2047	Bonds of the 2047 Series
	May 1, 2018	3.80% First Mortgage Bonds due 2028	Bonds of the 2028 Series
	November 1, 2018	4.50% First Mortgage Bonds due 2049	Bonds of the 2049 Series
	October 15, 2019	First Mortgage Bonds, Senior Notes Series CILCO-AA	Series CILCO-AA Mortgage Bonds
	November 1, 2019	3.25% First Mortgage Bonds due 2050	Bonds of the 2050 Series
	November 1, 2020	1.55% First Mortgage Bonds due 2030	Bonds of the 2030 Series

 

    4 

     

    

 

and

 

WHEREAS, a supplemental indenture with respect
to the Bonds of the 2007 Series and the Bonds of the 2012 Series listed above was executed and filed but such Bonds of the 2007 Series
and Bonds of the 2012 Series were never issued and a release with respect to such supplemental indenture was subsequently executed
and filed; and

 

WHEREAS, pursuant to Section 14.01(a)(xi)
of the Indenture, the Company and the Trustee executed a Supplemental Indenture dated as of October 25, 2017 amending the Indenture and
reserving rights to amend the Indenture; and

 

WHEREAS, the Company desires to create two
new series of Bonds to be issued under the Indenture; and

 

WHEREAS, the Company, in the exercise of
the powers and authority conferred upon and reserved to it under the provisions of the Indenture, and pursuant to appropriate resolutions
of the Board of Directors, has duly resolved and determined to make, execute and deliver to the Trustee this Supplemental Indenture in
the form hereof for the purposes herein provided; and

 

WHEREAS, all conditions and requirements
necessary to make this Supplemental Indenture a valid, binding and legal instrument have been done, performed and fulfilled and the execution
and delivery hereof have been in all respects duly authorized;

 

NOW, THEREFORE, THIS SUPPLEMENTAL INDENTURE
WITNESSETH:

 

THAT the Company, in consideration of the purchase
and ownership from time to time of the Bonds and the service by the Trustee, and its successors, under the Indenture and of One Dollar
to it duly paid by the Trustee at or before the ensealing and delivery of these presents, the receipt of which is hereby acknowledged,
hereby covenants and agrees to and with the Trustee and its successors in trust under the Indenture, for the benefit of those who shall
hold Bonds, as follows:

 

ARTICLE
I

DESCRIPTION OF THE Bonds of the 2023 Series

 

Section 1.           
The Company hereby creates a new series of Bonds to be known as “0.375% First Mortgage Bonds due 2023” (the “Bonds
of the 2023 Series”). The Bonds of the 2023 Series shall be executed, authenticated and delivered in accordance with the provisions
of, and shall in all respects be subject to, all of the terms, conditions and covenants of the Indenture, as supplemented and modified.

 

The Bonds of the 2023 Series shall be dated as
provided in Section 3.03 of Article Three of the Indenture. The Bonds of the 2023 Series shall mature on June 15, 2023, shall
accrue interest as set forth in the form of such Bonds below and shall bear interest at the rate of zero and three hundred seventy-five
thousandths percent (0.375%) per annum. Interest on the Bonds of the 2023 Series is payable semi-annually in arrears on June 15 and December
15 of each year, commencing on December 15, 2021, until the principal sum is paid in full. Payments of principal, premium, if any, and
interest of or on the Bonds of the 2023 Series shall be payable in any coin or currency of the United States of America, which at the
time of payment is legal tender for public and private debts.

 

Section 2.           
The Bonds of the 2023 Series and the Trustee’s Certificate of Authentication shall be substantially in the following forms
respectively:

 

 

    5 

     

    

 

[FORM OF BONDS OF THE 2023 SERIES] 

 

	REGISTERED		REGISTERED

[DTC Legend

 

THIS BOND IS A GLOBAL BOND REGISTERED IN THE NAME
OF THE DEPOSITARY (REFERRED TO HEREIN) OR A NOMINEE THEREOF AND, UNLESS AND UNTIL IT IS EXCHANGED IN WHOLE FOR THE INDIVIDUAL BONDS REPRESENTED
HEREBY AS PROVIDED IN THE INDENTURE REFERRED TO BELOW, THIS BOND MAY NOT BE TRANSFERRED EXCEPT AS A WHOLE BY THE DEPOSITARY TO A NOMINEE
OF THE DEPOSITARY OR BY A NOMINEE OF THE DEPOSITARY TO THE DEPOSITARY OR ANOTHER NOMINEE OF THE DEPOSITARY OR BY THE DEPOSITARY OR ANY
SUCH NOMINEE TO A SUCCESSOR DEPOSITARY OR A NOMINEE OF SUCH SUCCESSOR DEPOSITARY. UNLESS THIS BOND IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE
OF THE DEPOSITORY TRUST COMPANY (55 WATER STREET, NEW YORK, NEW YORK), TO THE TRUSTEE FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT,
AND ANY CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR SUCH OTHER NAME AS REQUESTED BY AN AUTHORIZED REPRESENTATIVE
OF THE DEPOSITORY TRUST COMPANY AND ANY PAYMENT IS MADE TO CEDE & CO., ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE
BY OR TO ANY PERSON IS WRONGFUL SINCE THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.]

 

AMEREN ILLINOIS COMPANY

 

(Incorporated under the laws of the State of Illinois)

 

Illinois Commerce Commission

Identification No.: Ill. C.C. No. ____

 

0.375% FIRST MORTGAGE BOND DUE 2023

 

	CUSIP:		NUMBER:
	ISIN:	 	 
	 	 	 
	ORIGINAL ISSUE DATE: _____________	 	PRINCIPAL AMOUNT: $_____________
	INTEREST RATE: 0.375%		MATURITY DATE: June 15, 2023

 

AMEREN ILLINOIS COMPANY, a corporation organized
and existing under the laws of the State of Illinois (the “Company”), which term shall include any Successor Corporation
as defined in the Indenture hereinafter referred to, for value received, hereby promises to pay to _____________________________, or registered
assigns, the principal sum of _____________ ($______) on the Maturity Date set forth above in any coin or currency of the United States
of America, which at the time of payment is legal tender for public and private debts, and to pay interest thereon from and including
the Original Issue Date specified above or from and including the most recent Interest Payment Date to which interest has been paid or
duly provided for, semi-annually in arrears on June 15 and December 15 of each year, commencing on December 15, 2021, and on the Maturity
Date, at the per annum Interest Rate set forth above until the principal hereof is paid or made available for payment. No interest shall
accrue on the Maturity Date, so long as the principal amount of this Bond is paid on the Maturity Date. The interest so payable, and punctually paid
or duly provided for, on any such Interest Payment Date (except for interest payable on the Maturity Date set forth above or, if
applicable, upon acceleration), will, as provided in the Indenture hereinafter referred to, be paid to the Person in whose name this
Bond is registered at the close of business on the Regular Record Date for such interest, which shall be the June 1 or December 1,
as the case may be, whether or not a Business Day, next preceding such Interest Payment Date; provided, that the first Interest
Payment Date for any part of this Bond, the Original Issue Date of which is after a Regular Record Date but prior to the applicable
Interest Payment Date, shall be the Interest Payment Date following the next succeeding Regular Record Date; and provided further,
that interest payable on the Maturity Date set forth above or, if applicable, upon acceleration, shall be payable to the Person to
whom principal shall be payable. Except as otherwise provided in the Indenture, any such interest not so punctually paid or duly
provided for shall forthwith cease to be payable to the Holder on such Regular Record Date and shall be paid to the Person in whose
name this Bond is registered at the close of business on a Special Record Date for the payment of such defaulted interest to be
fixed by the Trustee, notice whereof shall be given to Holders not more than fifteen days nor fewer than ten days prior to such
Special Record Date.

 

    6 

     

    

 

This Bond is one of a duly authorized issue of
Bonds of the Company (the “Bonds”) in unlimited aggregate principal amount except as provided in the Indenture, of
the series hereinafter specified, all issued and to be issued under and equally secured by the General Mortgage Indenture and Deed of
Trust (as amended and supplemented, the “Indenture”), dated as of November 1, 1992, executed by the Company (as
successor to Illinois Power Company) to The Bank of New York Mellon Trust Company, N.A., as successor trustee to Harris Trust and Savings
Bank (the “Trustee”), to which Indenture reference is hereby made for a description of the properties mortgaged and
pledged, the nature and extent of the security, the rights of registered owners of the Bonds and of the Trustee in respect thereof, and
the terms and conditions upon which the Bonds are, and are to be, secured. The Bonds may be issued in series, for various principal sums,
may mature at different times, may bear interest at different rates and may otherwise vary as provided in the Indenture. This Bond is
one of a series designated as the Bonds of the 2023 Series of the Company, unlimited in aggregate principal amount except as provided
in the Indenture, issued under and secured by the Indenture and described in the Supplemental Indenture dated as of June 1, 2021, between
the Company and the Trustee, supplemental to the Indenture.

 

Each Bond of this Series shall be dated and issued
as of the date of its authentication by the Trustee and shall bear an Original Issue Date. Each Bond of this Series issued upon transfer,
exchange or substitution of such Bond shall bear the Original Issue Date of such transferred, exchanged or substituted Bond, as the case
may be.

 

The Bonds of this Series shall be issued in minimum
denominations of $2,000 and integral multiples of $1,000 in excess thereof.

 

Interest on this Bond will accrue from and including
the Original Issue Date specified above to, but excluding, December 15, 2021, and thereafter from and including each Interest Payment
Date to, but excluding, the next succeeding Interest Payment Date or the Maturity Date, as the case may be.

 

The Bonds of this Series will not be redeemable
at the option of the Company.

 

Interest payments for this Bond shall be computed
and paid on the basis of a 360-day year consisting of twelve 30-day months (and for any partial periods shall be calculated on the basis
of the number of days elapsed in a 360-day year of twelve 30-day months). If any Interest Payment Date falls on a day that is not a Business
Day, the interest due on such Interest Payment Date will be paid on the next succeeding Business Day (and without any interest or other
payment in respect of any such delay). If the Maturity Date of this Bond falls on a day that is not a Business Day, the payment of principal,
premium, if any, and interest will be made on the next succeeding Business Day with the same force and effect as if made on the Maturity
Date, and no interest on such payment shall accrue for the period from and after the Maturity Date.

 

The Company, at its option, and subject to
the terms and conditions provided in the Indenture, will be discharged from any and all obligations in respect of the Bonds of this
Series (except for certain obligations including obligations to register the transfer or exchange of Bonds of this Series, replace
stolen, lost or mutilated Bonds of this Series, maintain paying agencies and hold monies for payment in trust, all as set forth in
the Indenture) if the Company deposits with the Trustee money, Government Obligations which through the payment of interest thereon
and principal thereof in accordance with their terms will provide money, or a combination of money and Government Obligations, in
any event in an amount sufficient, without reinvestment, to pay all the principal of and any premium and interest on the Bonds of
this Series on the dates such payments are due in accordance with the terms of the Bonds of this Series.

 

    7 

     

    

 

In case an Event of Default, as defined in the
Indenture, shall occur and be continuing, the principal of all Bonds at any such time outstanding under the Indenture may be declared
or may become due and payable, upon the conditions and in the manner and with the effect provided in the Indenture. The Indenture provides
that such declaration may be rescinded under certain circumstances.

 

The Indenture permits, with certain exceptions
as therein provided, the amendment thereof and the modifications of the rights and obligations of the Company and the rights of the Holders
under the Indenture at any time by the Company and the Trustee with the consent of the Holders of a majority in aggregate principal amount
of the outstanding Bonds of all series directly affected by such amendment or modifications, considered as one class. Each initial and
future Holder of this Bond, by its acquisition of an interest in this Bond, irrevocably (a) consents to the amendments set forth in Article
I of the Supplemental Indenture dated as of October 25, 2017, supplemental to the Indenture, without any other or further action by any
Holder of this Bond, and (b) designates the Trustee, and its successors, as its proxy with irrevocable instructions to vote and deliver
written consents on behalf of such Holder in favor of such amendments at any meeting of Holders, in lieu of any meeting of Holders, in
any consent solicitation or otherwise. Any such consent or waiver by the Holder of this Bond shall be conclusive and binding upon such
Holder and upon all future Holders of this Bond and of any Bond issued upon the registration of transfer hereof or in exchange therefor
or in lieu thereof whether or not notation of such consent or waiver is made upon this Bond.

 

As set forth in and subject to the provisions of
the Indenture, no Holder of any Bonds will have any right to institute any proceeding with respect to the Indenture or for any remedy
thereunder unless such Holder shall have previously given to the Trustee written notice of a continuing Event of Default with respect
to such Bonds, the Holders of a majority in aggregate principal amount of the outstanding Bonds shall have made written request and offered
reasonable indemnity to the Trustee to institute such proceeding as Trustee and the Trustee shall have failed to institute such proceeding
within 60 days after its receipt of such notice; provided, however, that such limitations do not apply to a suit instituted by the Holder
hereof for the enforcement of payment of the principal of and any premium or interest on this Bond on or after the respective due dates
expressed herein.

 

No reference herein to the Indenture and to provisions
of this Bond or of the Indenture shall alter or impair the obligation of the Company, which is absolute and unconditional, to pay the
principal of and any premium and interest on this Bond at the times, places and rates and the coin or currency prescribed in the Indenture.

 

As provided in the Indenture and subject to certain
limitations therein set forth, this Bond may be transferred only as permitted by the legend hereto and the provisions of the Indenture.

 

This Bond shall be governed by and construed in
accordance with the laws of the State of Illinois, except to the extent that the law of any other jurisdiction shall be mandatorily applicable.

 

This Bond shall not be entitled to any benefit
under the Indenture or any indenture supplemental thereto, or become valid or obligatory for any purpose, until the form of certificate
endorsed hereon shall have been signed by or on behalf of The Bank of New York Mellon Trust Company, N.A., as successor trustee to Harris
Trust and Savings Bank, the Trustee under the Indenture, or a successor trustee thereto under the Indenture.

 

All terms used in this Bond that are defined in
the Indenture shall have the meanings assigned to them in the Indenture unless otherwise indicated herein.

 

    8 

     

    

 

IN WITNESS WHEREOF, Ameren Illinois Company has
caused this Bond to be signed (manually or by facsimile signature) in its name by an Authorized Executive Officer, as defined in the aforesaid
Indenture, and attested (manually or by facsimile signature) by an Authorized Executive Officer, as defined in such Indenture on the date
hereof.

 

	Dated:	 
	 	 
	 	AMEREN ILLINOIS COMPANY
	 	 
	
	 	 By:	 
	 	 	AUTHORIZED EXECUTIVE OFFICER
	 	 	 
	ATTEST:	 
	 	 
	
	By:	         	 	 
	 	AUTHORIZED EXECUTIVE OFFICER	 

 

    9 

     

    

 

[FORM OF TRUSTEE’S CERTIFICATE OF AUTHENTICATION]

 

This is one of the Bonds of the series designated
therein referred to in the within mentioned Indenture and the Supplemental Indenture dated as of June 1, 2021.

 

THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A.

as successor trustee to

Harris Trust and Savings Bank,

TRUSTEE,

 

By:______________________________

AUTHORIZED SIGNATORY

 

ARTICLE
II

DESCRIPTION OF THE Bonds of the 2051 Series

 

Section 1.           
The Company hereby creates a new series of Bonds to be known as “2.90% First Mortgage Bonds due 2051” (the “Bonds
of the 2051 Series”). The Bonds of the 2051 Series shall be executed, authenticated and delivered in accordance with the provisions
of, and shall in all respects be subject to, all of the terms, conditions and covenants of the Indenture, as supplemented and modified.

 

The Bonds of the 2051 Series shall be dated as
provided in Section 3.03 of Article Three of the Indenture. The Bonds of the 2051 Series shall mature on June 15, 2051, shall
accrue interest as set forth in the form of such Bonds below and shall bear interest at the rate of two and ninety hundredths percent
(2.90%) per annum. Interest on the Bonds of the 2051 Series is payable semi-annually in arrears on June 15 and December 15 of each year,
commencing on December 15, 2021, until the principal sum is paid in full. Payments of principal, premium, if any, and interest of or on
the Bonds of the 2051 Series shall be payable in any coin or currency of the United States of America, which at the time of payment is
legal tender for public and private debts.

 

Section 2.           
The Bonds of the 2051 Series and the Trustee’s Certificate of Authentication shall be substantially in the following forms
respectively:

 

 

    10 

     

    

 

[FORM OF BONDS OF THE 2051 SERIES] 

 

	REGISTERED		REGISTERED

[DTC Legend

 

THIS BOND IS A GLOBAL BOND REGISTERED IN THE NAME
OF THE DEPOSITARY (REFERRED TO HEREIN) OR A NOMINEE THEREOF AND, UNLESS AND UNTIL IT IS EXCHANGED IN WHOLE FOR THE INDIVIDUAL BONDS REPRESENTED
HEREBY AS PROVIDED IN THE INDENTURE REFERRED TO BELOW, THIS BOND MAY NOT BE TRANSFERRED EXCEPT AS A WHOLE BY THE DEPOSITARY TO A NOMINEE
OF THE DEPOSITARY OR BY A NOMINEE OF THE DEPOSITARY TO THE DEPOSITARY OR ANOTHER NOMINEE OF THE DEPOSITARY OR BY THE DEPOSITARY OR ANY
SUCH NOMINEE TO A SUCCESSOR DEPOSITARY OR A NOMINEE OF SUCH SUCCESSOR DEPOSITARY. UNLESS THIS BOND IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE
OF THE DEPOSITORY TRUST COMPANY (55 WATER STREET, NEW YORK, NEW YORK), TO THE TRUSTEE FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT,
AND ANY CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR SUCH OTHER NAME AS REQUESTED BY AN AUTHORIZED REPRESENTATIVE
OF THE DEPOSITORY TRUST COMPANY AND ANY PAYMENT IS MADE TO CEDE & CO., ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE
BY OR TO ANY PERSON IS WRONGFUL SINCE THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.]

 

AMEREN ILLINOIS COMPANY

 

(Incorporated under the laws of the State of Illinois)

 

Illinois Commerce Commission

Identification No.: Ill. C.C. No. ____

 

2.90% FIRST MORTGAGE BOND DUE 2051

 

	CUSIP:		NUMBER:
	ISIN:	 	 
	 	 	 
	ORIGINAL ISSUE DATE: _____________	 	PRINCIPAL AMOUNT: $_____________
	INTEREST RATE: 2.90%		MATURITY DATE: June 15, 2051

 

AMEREN ILLINOIS COMPANY, a corporation organized
and existing under the laws of the State of Illinois (the “Company”), which term shall include any Successor Corporation
as defined in the Indenture hereinafter referred to, for value received, hereby promises to pay to _____________________________, or registered
assigns, the principal sum of _____________ ($______) on the Maturity Date set forth above in any coin or currency of the United States
of America, which at the time of payment is legal tender for public and private debts, and to pay interest thereon from and including
the Original Issue Date specified above or from and including the most recent Interest Payment Date to which interest has been paid or
duly provided for, semi-annually in arrears on June 15 and December 15 of each year, commencing on December 15, 2021, and on the Maturity
Date, at the per annum Interest Rate set forth above until the principal hereof is paid or made available for payment. No interest shall
accrue on the Maturity Date, so long as the principal amount of this Bond is paid on the Maturity Date. The interest so payable, and punctually paid
or duly provided for, on any such Interest Payment Date (except for interest payable on the Maturity Date set forth above or, if
applicable, upon acceleration), will, as provided in the Indenture hereinafter referred to, be paid to the Person in whose name this
Bond is registered at the close of business on the Regular Record Date for such interest, which shall be the June 1 or December 1,
as the case may be, whether or not a Business Day, next preceding such Interest Payment Date; provided, that the first Interest
Payment Date for any part of this Bond, the Original Issue Date of which is after a Regular Record Date but prior to the applicable
Interest Payment Date, shall be the Interest Payment Date following the next succeeding Regular Record Date; and provided further,
that interest payable on the Maturity Date set forth above or, if applicable, upon acceleration, shall be payable to the Person to
whom principal shall be payable. Except as otherwise provided in the Indenture, any such interest not so punctually paid or duly
provided for shall forthwith cease to be payable to the Holder on such Regular Record Date and shall be paid to the Person in whose
name this Bond is registered at the close of business on a Special Record Date for the payment of such defaulted interest to be
fixed by the Trustee, notice whereof shall be given to Holders not more than fifteen days nor fewer than ten days prior to such
Special Record Date.

 

    11 

     

    

 

This Bond is one of a duly authorized issue of
Bonds of the Company (the “Bonds”) in unlimited aggregate principal amount except as provided in the Indenture, of
the series hereinafter specified, all issued and to be issued under and equally secured by the General Mortgage Indenture and Deed of
Trust (as amended and supplemented, the “Indenture”), dated as of November 1, 1992, executed by the Company (as
successor to Illinois Power Company) to The Bank of New York Mellon Trust Company, N.A., as successor trustee to Harris Trust and Savings
Bank (the “Trustee”), to which Indenture reference is hereby made for a description of the properties mortgaged and
pledged, the nature and extent of the security, the rights of registered owners of the Bonds and of the Trustee in respect thereof, and
the terms and conditions upon which the Bonds are, and are to be, secured. The Bonds may be issued in series, for various principal sums,
may mature at different times, may bear interest at different rates and may otherwise vary as provided in the Indenture. This Bond is
one of a series designated as the Bonds of the 2051 Series of the Company, unlimited in aggregate principal amount except as provided
in the Indenture, issued under and secured by the Indenture and described in the Supplemental Indenture dated as of June 1, 2021, between
the Company and the Trustee, supplemental to the Indenture.

 

Each Bond of this Series shall be dated and issued
as of the date of its authentication by the Trustee and shall bear an Original Issue Date. Each Bond of this Series issued upon transfer,
exchange or substitution of such Bond shall bear the Original Issue Date of such transferred, exchanged or substituted Bond, as the case
may be.

 

The Bonds of this Series shall be issued in minimum
denominations of $2,000 and integral multiples of $1,000 in excess thereof.

 

Interest on this Bond will accrue from and including
the Original Issue Date specified above to, but excluding, December 15, 2021, and thereafter, from and including each Interest Payment
Date to, but excluding, the next succeeding Interest Payment Date, the Maturity Date or any redemption date, as the case may be.

 

All or a portion of the Bonds of this Series may
be redeemed at the option of the Company at any time or from time to time. The redemption price for the Bonds of this Series to be redeemed
on any redemption date prior to December 15, 2050 (six months prior to the Maturity Date) (the “Par Call Date”) will
be equal to the greater of the following amounts: (a) 100% of the principal amount of the Bonds of this Series being redeemed on
that redemption date; or (b) the sum of the present values of the remaining scheduled payments of principal and interest on the Bonds
of this Series being redeemed on that redemption date that would be payable if such Bonds matured on the Par Call Date (not including
any portion of any payments of interest accrued to the redemption date) discounted to the redemption date on a semiannual basis (assuming
a 360-day year consisting of twelve 30-day months) at the Adjusted Treasury Rate (as defined below) plus 15 basis points, as determined
by the Reference Treasury Dealer (as defined below); plus, in each case, accrued and unpaid interest thereon to the redemption date. The
redemption price for the Bonds of this Series to be redeemed on any redemption date on or after the Par Call Date will be equal to 100%
of the principal amount of the Bonds of this Series being redeemed on that redemption date plus accrued and unpaid interest thereon to
the redemption date.

 

The redemption price for the Bonds of this
Series to be redeemed shall be payable to the Person to whom principal shall be payable except that installments of interest on
Bonds of this Series that are due and payable on Interest Payment Dates falling on or prior to a redemption date will be payable on
the Interest Payment Date to the Holder of this Bond as of the close of business on the relevant Regular Record Date pursuant to the
Indenture.

 

    12 

     

    

 

With respect to a redemption occurring prior to
the Par Call Date, the Company shall give the Trustee written notice of the redemption price promptly after the calculation thereof and
the Trustee shall not be responsible for such calculation.

 

The Company shall mail notice of any redemption
at least 10 days but not more than 60 days before the redemption date to each Holder of the Bonds of this Series to be redeemed,
and, if less than all Bonds of this Series are to be redeemed, the particular Bonds of this Series to be redeemed will be selected by
the Trustee by lot; provided, that as long as the Bonds of this Series are represented by global certificates registered in the name of
The Depository Trust Company (“DTC”), or its nominee, beneficial interests in such global certificates will be selected
for redemption by DTC in accordance with its standard procedures therefor.

 

Any notice of redemption at the Company’s
option may state that such redemption will be conditional upon receipt by the Trustee, on or prior to the date fixed for such redemption,
of money sufficient to pay the principal of, premium, if any, and interest on, the Bonds of this Series or portions thereof called for
redemption, and that if such money has not been so received, such notice will be of no force and effect and the Company will not be required
to redeem such Bonds or portions thereof. Unless the Company defaults in payment of the redemption price, on and after the redemption
date, interest will cease to accrue on the Bonds of this Series or portions thereof called for redemption.

 

“Adjusted Treasury Rate” means,
with respect to any redemption date, the rate per annum equal to the semiannual equivalent yield to maturity of the Comparable Treasury
Issue, assuming a price for the Comparable Treasury Issue (expressed as a percentage of its principal amount) equal to the Comparable
Treasury Price for such redemption date.

 

“Business Day” means, with respect
to Bonds of this series, any weekday that is not a day on which banking institutions or trust companies in the Borough of Manhattan, the
City and State of New York, or in the city where the corporate trust office of the Trustee is located, are obligated or authorized by
law or executive order to close.

 

“Comparable Treasury Issue”
means the United States Treasury security selected by the Reference Treasury Dealer as having a maturity comparable to the remaining term
of the Bonds of this Series to be redeemed (assuming, for this purpose, that the Bonds of this Series matured on the Par Call Date) that
would be utilized, at the time of selection and in accordance with customary financial practice, in pricing new issues of corporate debt
securities of comparable maturity to the Par Call Date.

 

“Comparable Treasury Price”
means, with respect to any redemption date, (A) the average of the Reference Treasury Dealer Quotations for such redemption date,
after excluding the highest and lowest of such Reference Treasury Dealer Quotations, or (B) if the Company obtains fewer than four such
Reference Treasury Dealer Quotations, the average of all such quotations, or (C) if only one Reference Treasury Dealer Quotation is received,
such quotation.

 

“Reference Treasury Dealer”
means each of (A) RBC Capital Markets, LLC, TD Securities (USA) LLC, Wells Fargo Securities, LLC and a Primary Treasury Dealer (as defined
below) selected by Truist Securities, Inc., or, in each case, an affiliate thereof, which are primary U.S. Government securities dealers
in the United States (each, a “Primary Treasury Dealer”), and their respective successors; provided, however, that
if any of the foregoing shall cease to be a Primary Treasury Dealer, the Company will substitute therefor another Primary Treasury Dealer;
and (B) any other Primary Treasury Dealer(s) selected by the Company.

 

“Reference Treasury Dealer
Quotations” means, with respect to each Reference Treasury Dealer and any redemption date, the average, as determined by
the Company, of the bid and asked prices for the Comparable Treasury Issue (expressed in each case as a percentage of its principal
amount) quoted in writing to the Company by such Reference Treasury Dealer at 5:00 p.m. (New York City time) on the third Business
Day preceding such redemption date.

 

    13 

     

    

 

Interest payments for this Bond shall be computed
and paid on the basis of a 360-day year consisting of twelve 30-day months (and for any partial periods shall be calculated on the basis
of the number of days elapsed in a 360-day year of twelve 30-day months). If any Interest Payment Date falls on a day that is not a Business
Day, the interest due on such Interest Payment Date will be paid on the next succeeding Business Day (and without any interest or other
payment in respect of any such delay). If the Maturity Date of this Bond or any redemption date falls on a day that is not a Business
Day, the payment of principal, premium, if any, and interest will be made on the next succeeding Business Day with the same force and
effect as if made on the Maturity Date or such redemption date, and no interest on such payment shall accrue for the period from and after
the Maturity Date or such redemption date.

 

The Company, at its option, and subject to the
terms and conditions provided in the Indenture, will be discharged from any and all obligations in respect of the Bonds of this Series
(except for certain obligations including obligations to register the transfer or exchange of Bonds of this Series, replace stolen, lost
or mutilated Bonds of this Series, maintain paying agencies and hold monies for payment in trust, all as set forth in the Indenture) if
the Company deposits with the Trustee money, Government Obligations which through the payment of interest thereon and principal thereof
in accordance with their terms will provide money, or a combination of money and Government Obligations, in any event in an amount sufficient,
without reinvestment, to pay all the principal of and any premium and interest on the Bonds of this Series on the dates such payments
are due in accordance with the terms of the Bonds of this Series.

 

In case an Event of Default, as defined in the
Indenture, shall occur and be continuing, the principal of all Bonds at any such time outstanding under the Indenture may be declared
or may become due and payable, upon the conditions and in the manner and with the effect provided in the Indenture. The Indenture provides
that such declaration may be rescinded under certain circumstances.

 

The Indenture permits, with certain exceptions
as therein provided, the amendment thereof and the modifications of the rights and obligations of the Company and the rights of the Holders
under the Indenture at any time by the Company and the Trustee with the consent of the Holders of a majority in aggregate principal amount
of the outstanding Bonds of all series directly affected by such amendment or modifications, considered as one class. Each initial and
future Holder of this Bond, by its acquisition of an interest in this Bond, irrevocably (a) consents to the amendments set forth in Article
I of the Supplemental Indenture dated as of October 25, 2017, supplemental to the Indenture, without any other or further action by any
Holder of this Bond, and (b) designates the Trustee, and its successors, as its proxy with irrevocable instructions to vote and deliver
written consents on behalf of such Holder in favor of such amendments at any meeting of Holders, in lieu of any meeting of Holders, in
any consent solicitation or otherwise. Any such consent or waiver by the Holder of this Bond shall be conclusive and binding upon such
Holder and upon all future Holders of this Bond and of any Bond issued upon the registration of transfer hereof or in exchange therefor
or in lieu thereof whether or not notation of such consent or waiver is made upon this Bond.

 

As set forth in and subject to the provisions of
the Indenture, no Holder of any Bonds will have any right to institute any proceeding with respect to the Indenture or for any remedy
thereunder unless such Holder shall have previously given to the Trustee written notice of a continuing Event of Default with respect
to such Bonds, the Holders of a majority in aggregate principal amount of the outstanding Bonds shall have made written request and offered
reasonable indemnity to the Trustee to institute such proceeding as Trustee and the Trustee shall have failed to institute such proceeding
within 60 days after its receipt of such notice; provided, however, that such limitations do not apply to a suit instituted by the Holder
hereof for the enforcement of payment of the principal of and any premium or interest on this Bond on or after the respective due dates
expressed herein.

 

No reference herein to the Indenture and to provisions
of this Bond or of the Indenture shall alter or impair the obligation of the Company, which is absolute and unconditional, to pay the
principal of and any premium and interest on this Bond at the times, places and rates and the coin or currency prescribed in the Indenture.

 

As provided in the Indenture and subject to certain
limitations therein set forth, this Bond may be transferred only as permitted by the legend hereto and the provisions of the Indenture.

 

    14 

     

    

 

This Bond shall be governed by and construed in
accordance with the laws of the State of Illinois, except to the extent that the law of any other jurisdiction shall be mandatorily applicable.

 

This Bond shall not be entitled to any benefit
under the Indenture or any indenture supplemental thereto, or become valid or obligatory for any purpose, until the form of certificate
endorsed hereon shall have been signed by or on behalf of The Bank of New York Mellon Trust Company, N.A., as successor trustee to Harris
Trust and Savings Bank, the Trustee under the Indenture, or a successor trustee thereto under the Indenture.

 

All terms used in this Bond that are defined in
the Indenture shall have the meanings assigned to them in the Indenture unless otherwise indicated herein.

 

IN WITNESS WHEREOF, Ameren Illinois Company has
caused this Bond to be signed (manually or by facsimile signature) in its name by an Authorized Executive Officer, as defined in the aforesaid
Indenture, and attested (manually or by facsimile signature) by an Authorized Executive Officer, as defined in such Indenture on the date
hereof.

 

	Dated: 	 
	 	 
	 	AMEREN ILLINOIS COMPANY
	 	 
	 	By:	                 
	 	AUTHORIZED EXECUTIVE OFFICER
	 	 
	ATTEST:	 

 

	By:	                                       	 
	AUTHORIZED EXECUTIVE OFFICER	 

 

    15 

     

    

 

[FORM OF TRUSTEE’S CERTIFICATE OF AUTHENTICATION]

 

This is one of the Bonds of the series designated
therein referred to in the within mentioned Indenture and the Supplemental Indenture dated as of June 1, 2021.

 

THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A.

as successor trustee to

Harris Trust and Savings Bank,

TRUSTEE,

 

By:______________________________

AUTHORIZED SIGNATORY

 

ARTICLE
III

REDEMPTION AND CONSENT TO aMENDMENTS

 

Section 1.           The Bonds of the 2023 Series are not redeemable as set forth in the form of such Bonds in Article I hereof, and the Bonds of the
2051 Series are redeemable as set forth in the form of such Bonds in Article II hereof. If the Company elects to redeem any Bonds of the
2051 Series, it shall notify the Trustee of the redemption date and the principal amount of such Bonds of the 2051 Series to be redeemed
not less than 15 days nor more than 90 days before such redemption date.

 

Section 2.           Each initial and future Holder of the Bonds of the 2023 Series and each initial and future Holder of the Bonds of the 2051 Series,
by its acquisition of an interest in such Bonds of the 2023 Series and such Bonds of the 2051 Series, as the case may be, irrevocably
(a) consents to the amendments set forth in Article I of the Supplemental Indenture dated as of October 25, 2017, supplemental to the
Indenture, without any other or further action by any Holder of such Bonds, and (b) designates the Trustee, and its successors, as its
proxy with irrevocable instructions to vote and deliver written consents on behalf of such Holder in favor of such amendments at any meeting
of Holders, in lieu of any meeting of Holders, in any consent solicitation or otherwise.

 

ARTICLE
IV

ISSUE OF THE Bonds of the 2023 Series AND BONDS OF THE 2051 SERIES

 

Section 1.           The
Company hereby exercises the right to obtain (i) the authentication of $100,000,000 principal amount of additional Bonds pursuant to
the terms of the Indenture, all of which shall be Bonds of the 2023 Series, and (ii) the authentication of $350,000,000 principal amount
of additional Bonds pursuant to the terms of the Indenture, all of which shall be Bonds of the 2051 Series.

 

Section 2.           Such
Bonds of the 2023 Series and Bonds of 2051 Series may be authenticated and delivered prior to the filing for recordation of this Supplemental
Indenture.

 

Section 3.           After the authentication of such Bonds of the 2023 Series, without the consent of any existing Holder of the Bonds of the 2023
Series, the Company may thereafter obtain from time to time the authentication of additional Bonds of the 2023 Series pursuant to the
terms of the Indenture by Company Order referring to this Supplemental Indenture having the same terms and conditions as the Outstanding
Bonds of the 2023 Series in all respects (including the same CUSIP number), except for the date of original issuance, the offering price
and, if applicable, the initial interest accrual date and the initial Interest Payment Date.

 

Section 4.           After
the authentication of such Bonds of the 2051 Series, without the consent of any existing Holder of the Bonds of the 2051 Series, the
Company may thereafter obtain from time to time the authentication of additional Bonds of the 2051 Series pursuant to the terms of
the Indenture by Company Order referring to this Supplemental Indenture having the same terms and conditions as the Outstanding
Bonds of the 2051 Series in all respects (including the same CUSIP number), except for the date of original issuance, the offering
price and, if applicable, the initial interest accrual date and the initial Interest Payment Date.

 

    16 

     

    

 

ARTICLE
V

THE TRUSTEE

 

The Trustee hereby accepts the trusts hereby declared
and provided, and agrees to perform the same upon the terms and conditions in the Indenture set forth and upon the following terms and
conditions:

 

The Trustee shall not be responsible in any manner
whatsoever for or in respect of the validity or sufficiency of this Supplemental Indenture or the due execution hereof by the Company
or for or in respect of the recitals contained herein, all of which recitals are made by the Company solely. In general, each and every
term and condition contained in Article Eleven of the Indenture shall apply to this Supplemental Indenture with the same force and
effect as if the same were herein set forth in full, with such omissions, variations and modifications thereof as may be appropriate to
make the same conform to this Supplemental Indenture.

 

ARTICLE
VI

MISCELLANEOUS PROVISIONS

 

Except as otherwise defined herein, capitalized
terms defined in the Indenture are used herein as therein defined. This Supplemental Indenture may be simultaneously executed in any number
of counterparts, each of which when so executed shall be deemed to be an original; but such counterparts shall together constitute but
one and the same instrument.

 

The Indenture, as supplemented and amended by this
Supplemental Indenture and all other indentures supplemental thereto, is in all respects ratified and confirmed, and the Indenture, this
Supplemental Indenture and all indentures supplemental thereto shall be read, taken and construed as one and the same instrument.

 

    17 

     

    

 

IN WITNESS WHEREOF, said Ameren Illinois Company
has caused this Supplemental Indenture to be executed on its behalf by an Authorized Executive Officer as defined in the Indenture, and
this Supplemental Indenture to be attested by an Authorized Executive Officer as defined in the Indenture; and said The Bank of New York
Mellon Trust Company, N.A., as successor trustee to Harris Trust and Savings Bank, in evidence of its acceptance of the trust hereby created,
has caused this Supplemental Indenture to be executed on its behalf by one of its Vice Presidents and this Supplemental Indenture to be
attested by its Secretary or one of its Vice Presidents; all as of June 1, 2021.

 

AMEREN ILLINOIS COMPANY

 

	 	 	 	 	 	 
	 	 	 	By:	/s/ Darryl T. Sagel
	 	 	 	 	Name:	Darryl T. Sagel
	 	 	 	 	Title:	Vice President and Treasurer
	 	 	 	 	 	 
	ATTEST:	 	 	 
	 	 	 	 	 	 
	By: 	/s/ Craig W. Stensland	 	 	 
		Name:	Craig W. Stensland	 	 	 
		Title:	Assistant Secretary	 	 	 

 

    18 

     

    

 

THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A.

successor trustee to

Harris Trust and Savings Bank,

TRUSTEE,

 

	 	 	 	By:	/s/ D. G. Donovan
	 	 	 	 	Name:	D.G. Donovan
	 	 	 	 	Title:	Vice President
	 	 	 	 	 	 
	ATTEST:	 	 	 
	 	 	 	 	 	 
	By: 	/s/ Eduardo Rodriguez	 	 	 
		Name: 	Eduardo Rodriguez	 	 	 
		Title:	Vice President	 	 	 

  

    19 

     

    

 

	STATE OF MISSOURI	)	 
	 	 	ss.
	CITY OF ST. LOUIS	)	 

 

BE IT REMEMBERED, that on this 24th day of June,
2021, before me, the undersigned, a Notary Public within and for the City and State aforesaid, personally came Darryl T. Sagel, Vice President
and Treasurer and Craig W. Stensland, Assistant Secretary, of Ameren Illinois Company, a corporation duly organized, incorporated
and existing under the laws of the State of Illinois, who are personally known to me to be such officers, and who are personally known
to me to be the same persons who executed as such officers the within instrument of writing, and such persons duly acknowledged that they
signed and delivered the said instrument as their free and voluntary act as such officers and as the free and voluntary act of said Ameren
Illinois Company for the uses and purposes therein set forth.

 

IN WITNESS WHEREOF, I have hereunto subscribed
my name and affixed my official seal on the day and year last above written.

 

	 	/s/ Juliana C. Goede
	 	NOTARY PUBLIC
	 	Juliana C. Goede
	 	Notary Public, Notary Seal
	 	State of Missouri
	 	St. Louis County
	 	Commission #14424949
	 	My Commission Expires 01-14-2023

 

    20 

     

    

 

	STATE OF ILLINOIS	)	 
	 	 	ss.
	COUNTY OF COOK	)	 

 

BE IT REMEMBERED, that on this 24th day of June,
2021, before me, the undersigned, a Notary Public within and for the State aforesaid, personally came D.G. Donovan, Vice President and
Eduardo Rodriguez, Vice President, of The Bank of New York Mellon Trust Company, N.A., a national banking association duly organized,
incorporated and existing under the laws of the United States, who are personally known to me or proved to me on the basis of satisfactory
evidence to be the same persons who executed as such officers the within instrument of writing, and such persons duly acknowledged that
they signed and delivered the said instrument as their free and voluntary act as such Vice President and Vice President, and as the free
and voluntary act of said The Bank of New York Mellon Trust Company, N.A. for the uses and purposes therein set forth.

 

IN WITNESS WHEREOF, I have hereunto subscribed
my name and affixed my official seal on the day and year last above written.

 

	 	/s/ Lawrence M. Kusch
	 	NOTARY PUBLIC
	 	Official Seal
	 	Lawrence M. Kusch
	 	Notary Public – State of Illinois
	 	My Commission Expires: 10/24/2022

 

    21

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