AMEREN CORP
S-3, 2000-06-15
ELECTRIC & OTHER SERVICES COMBINED
Previous: INNOVATIVE CLINICAL SOLUTIONS LTD, NT 10-Q, 2000-06-15
Next: AMEREN CORP, S-3, EX-5, 2000-06-15




<PAGE>

      AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON JUNE 15, 2000
                                       Registration Statement No. 33-___________
           Post-Effective Amendment No. 1 to Registration Statement No. 33-43721
________________________________________________________________________________
________________________________________________________________________________


                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                    Form S-3

             Registration Statement Under The Securities Act Of 1933
       __________________________________________________________________


                               AMEREN CORPORATION
             (Exact name of registrant as specified in its charter)

        State of Missouri                                    43-1723446
  (State or other jurisdiction                             (IRS Employer
of incorporation or organization)                        Identification No.)

                              1901 Chouteau Avenue
                            St. Louis, Missouri 63103
                                 (314) 621-3222
               (Address, including zip code, and telephone number,
                      including area code, of registrant's
                          principal executive offices)
       __________________________________________________________________


                     DONALD E. BRANDT, Senior Vice President
        STEVEN R. SULLIVAN, Vice President, General Counsel and Secretary
                 1901 Chouteau Avenue, St. Louis, Missouri 63103
                                 (314) 621-3222
  (Names, address, including zip code, and telephone numbr, including area code,
     of agents for service)

                         CALCULATION OF REGISTRATION FEE
<TABLE>
<CAPTION>
==================================================================================================================
  Title of each class of        Amount to be         Proposed maximum        Proposed maximum            Amount of
     Securities to be            Registered         offering price per      aggregate offering     registration fee (2)
        registered                                       unit (1)                  price
------------------------------------------------------------------------------------------------------------------
      <S>                     <C>                        <C>                   <C>                        <C>
       Common Stock,
      $.01 par value          6,000,000 shares           $35.3125              $211,875,000               $55,935
==================================================================================================================
</TABLE>

(1)  Calculated  in  accordance  with Rule 457(c) on the basis of the average of
     the high  and low  sales  prices  of  Ameren  Corporation  Common  Stock as
     reported on the New York Stock Exchange Composite Tape on June 14, 2000.

(2)  500,000  shares of Common  Stock to be offered and sold under the Plan were
     previously registered (Form S-3 Registration Statement, Reg. No. 33- 43721)
     and are carried  forward  hereby.  The amount of filing fee associated with
     the Common Stock that was  previously  paid with such earlier  registration
     statement is $6,406.


         Approximate  date of commencement of proposed sale to the public:  From
time to time after this Registration Statement becomes effective.

         If the only securities  being registered on this Form are being offered
pursuant to dividend or interest  reinvestment plans, please check the following
box: |_|

         If any of the  securities  being  registered  on  this  Form  are to be
offered  on a  delayed  or  continuous  basis  pursuant  to Rule 415  under  the
Securities Act of 1933,  other than  securities  offered only in connection with
dividend or interest reinvestment plans, please check the following box:|X|

         If this Form is filed to register additional securities for an offering
pursuant to Rule 462(b) under the Securities Act, please check the following box
and list  the  Securities  Act  registration  statement  number  of the  earlier
effective registration statement for the same offering. |_|___________

         If this  Form is a  post-effective  amendment  filed  pursuant  to Rule
462(c) under the Securities Act, check the following box and list the Securities
Act  registration   statement  number  of  the  earlier  effective  registration
statement for the same offering. |_|___________

         If delivery of the  prospectus  is expected to be made pursuant to Rule
434, please check the following box. |_|

________________________________________________________________________________
________________________________________________________________________________


<PAGE>

PROSPECTUS

                                 [AMEREN LOGO]

                               Ameren Corporation

                                     DRPlus
                  Dividend Reinvestment and Stock Purchase Plan

     Ameren  Corporation  (the  "Company") has  established  its DRPlus Dividend
Reinvestment and Stock Purchase Plan (the "Plan") to provide Participants with a
convenient way (1) to purchase  shares of the Company's  Common Stock and (2) to
reinvest all or a portion of the cash  dividends  paid on the  Company's  Common
Stock and the  Preferred  Stock of the  Company's  subsidiaries  (the  "Eligible
Securities"), including Union Electric Company ("AmerenUE") and Central Illinois
Public Service Company ("AmerenCIPS"), in additional shares of Common Stock.

     Participants in the Plan may:

     o    Reinvest  all  or  a  portion  of  cash  dividends  paid  on  Eligible
          Securities in additional shares of Common Stock.
     o    Increase  their  investment  in Common Stock by making  optional  cash
          investments of at least $25 at any time.
     o    Make an initial  investment in Common Stock with a cash  investment of
          at least $250. o Receive, upon request,  certificates for whole shares
          of Common Stock credited to their Plan accounts.
     o    Deposit  certificates   representing  Common  Stock  into  their  Plan
          accounts for  safekeeping.  o Sell shares of Common Stock  credited to
          their Plan accounts.

     Shares of Common Stock  purchased under the Plan will, at the option of the
Company,  be newly issued shares or treasury shares purchased  directly from the
Company,  or shares  purchased  in the open  market or in  privately  negotiated
transactions.  Any open market or privately  negotiated  purchases  will be made
through an Independent Agent selected by the Company. The Common Stock is listed
on the New York Stock  Exchange  under the ticker  symbol AEE.  This  Prospectus
relates to 6,500,000 shares of Common Stock offered under the Plan.

     The  purchase  price of newly  issued or  treasury  shares of Common  Stock
purchased  under the Plan for an Investment Date will be the average of the high
and low sales prices of the Common Stock on the Investment  Date reported as New
York Stock Exchange  Composite  Transactions as published in the Midwest Edition
of The Wall Street Journal or other similar financial publication.  The price of
shares of Common Stock  purchased in the open market or in privately  negotiated
transactions  will be the  weighted  average  price per  share of the  aggregate
number of shares  purchased  with respect to the relevant  Investment  Date. The
Company will pay the costs of administration of the Plan; however,  Participants
will pay any brokerage commissions and any applicable transfer taxes and service
charges related to shares purchased or sold under the Plan.

     To the extent required by applicable law in certain  jurisdictions,  shares
of Common  Stock  offered  under the Plan to certain  persons are  offered  only
through a registered broker/dealer in such jurisdictions.

     The principal executive offices of the Company are located at 1901 Chouteau
Avenue, St. Louis, Missouri, and its telephone number is (314) 621-3222.

     This Prospectus  contains the material provisions of the Plan and should be
retained for future reference.


     Neither the  Securities and Exchange  Commission  nor any state  securities
commission has approved or  disapproved  of these  securities or passed upon the
adequacy or accuracy of this Prospectus. Any representation to the contrary is a
criminal offense.

________________________________________________________________________________

                 The date of this Prospectus is July ____, 2000.

<PAGE>



                        SOURCES OF ADDITIONAL INFORMATION

     The Company files annual,  quarterly and current reports,  proxy statements
and other  information  with the Securities and Exchange  Commission  ("SEC") in
accordance  with the  Securities  Exchange  Act of 1934.  The  Company is also a
registered  holding company under the Public Utility Holding Company Act of 1935
and files reports,  applications  and other  information with the SEC under that
Act.  You may read and copy any  materials  filed by the Company with the SEC at
the SEC's Public  Reference  Room at 450 Fifth Street,  N.W.,  Washington,  D.C.
20549. You may obtain  information on the operation of the Public Reference Room
by calling the SEC at  1-800-SEC-0330.  The SEC  maintains an Internet site that
contains reports, proxy statements and other information regarding issuers, such
as the Company,  that file electronically with the SEC. The address of that site
is:  http://www.sec.gov.  In addition,  such reports, proxy statements and other
information  concerning the Company can be inspected at the principal  office of
the Company at the address set forth on the cover of this Prospectus.

     The Company has filed a  Registration  Statement on Form S-3 (together with
all amendments and exhibits thereto, the "Registration  Statement") with the SEC
under the  Securities Act of 1933 to register the Common Stock offered under the
Plan. This Prospectus  omits certain  information  contained in the Registration
Statement,  as permitted by SEC rules. You may obtain copies of the Registration
Statement  from the sources  described in the  preceding  paragraph.  Statements
contained  or  incorporated  by  reference  in this  Prospectus  concerning  the
provisions  of  documents  are  qualified  by  reference  to  the   Registration
Statement.

     The  following  documents  have  previously  been filed with the SEC by the
Company (File No.  1-14756)  under the  Securities  Exchange Act of 1934 and are
incorporated by reference and considered to be a part of this Prospectus:

     1.   Annual  Report on Form 10-K for the  fiscal  year ended  December  31,
          1999.

     2.   Quarterly Report on Form 10-Q for the quarter ended March 31, 2000.

     3.   Current Reports on Form 8-K dated January 20 and May 5, 2000.

     Any documents  the Company files with the SEC in the future under  Sections
13(a),  13(c),  14 or 15(d) of the Securities  Exchange Act of 1934 will also be
incorporated  by reference and considered to be a part of this  Prospectus.  Any
documents or other information that the Company files with the SEC in the future
will automatically update and supersede the information previously  incorporated
by  reference  in this  Prospectus  until the offering of Common Stock under the
Plan has been completed.

     The Company will provide to you, at no cost, a copy of any of the documents
that are  incorporated  by  reference  in this  Prospectus,  other than  certain
exhibits  to such  documents.  Requests  for such  copies  should be made to the
Banking and Investor Services Department,  Ameren Services Company,  Post Office
Box 66887, St. Louis, Missouri 63166-6887, telephone number 1-800-255-2237.

                                   THE COMPANY

     The Company is a registered public utility holding company under the Public
Utility   Holding  Company  Act  of  1935.  The  principal   utility   operating
subsidiaries of the Company are Union Electric Company  ("AmerenUE") and Central
Illinois Public Service  Company  ("AmerenCIPS").  AmerenUE was  incorporated in
Missouri in 1922, and is successor to a number of companies, the oldest of which
was  organized  in 1881.  It is the  largest  electric  utility  in the State of
Missouri and supplies  electric and gas service in  territories  in Missouri and
Illinois  having  an  estimated  population  of  2,600,000  within  an  area  of
approximately  24,500  square  miles,  including  the  greater  St.  Louis area.
AmerenCIPS is an Illinois  corporation  organized in 1902. It supplies  electric
and gas  service to  territories  in central  and  southern  Illinois  having an
estimated population of 820,000 within an

                                        2

<PAGE>

area of  approximately  20,000  square  miles.  The Company also owns all of the
common stock of other  subsidiary  companies  engaged in related  regulated  and
nonregulated activities.


                                 USE OF PROCEEDS

     The number of shares of Common  Stock,  if any,  that the Company will sell
under the Plan and the prices at which such shares will be sold cannot presently
be  determined.  The number and prices of shares  sold will be  affected  by the
level of  participation  in the Plan,  the  prevailing  prices of the  Company's
Common  Stock and  whether  the shares are newly  issued or  treasury  shares or
shares  purchased in the open market or privately  negotiated  transactions.  If
newly issued or treasury  shares of Common  Stock are sold by the Company  under
the Plan,  the proceeds  from the sales will be used for repayment of short-term
or long-term  indebtedness,  for working capital or for other general  corporate
purposes.  If shares are purchased by an Independent Agent in the open market or
in private  transactions  for sale under the Plan,  the Company will not receive
any proceeds from such sales.


                             DESCRIPTION OF THE PLAN
PURPOSE

1.   What is the purpose of the Plan?

     The purpose of the Plan is to provide  Participants (see Question 6) with a
convenient  way to purchase  shares of Common  Stock,  $.01 par value,  ("Common
Stock") of Ameren  Corporation  (the "Company") and to reinvest all or a portion
of the cash  dividends  paid on the Company's  Common Stock and on the Preferred
Stock of the Company's  subsidiaries  (together,  the "Eligible  Securities") in
additional shares of Common Stock.


FEATURES

2.   What are the main features of the Plan?

     o    Participants  may elect to have cash  dividends on all or a portion of
          their  shares  of  Common  Stock  or  Preferred  Stock   automatically
          reinvested.   Dividend   payments  not  reinvested  will  be  paid  to
          Participants by check or through electronic direct deposit.

     o    Participants  may  make  Optional  Cash   Investments   (including  by
          authorizing  direct  debit from their  personal  bank  accounts)  in a
          minimum amount of $25 per transaction after the initial investment and
          up to a maximum of  $120,000  per  calendar  year for the  purchase of
          Common Stock.

     o    Non-shareholders  of legal age may become  Participants in the Plan by
          making a minimum  initial cash  investment of $250 to purchase  Common
          Stock under the terms of the Plan.

     o    Non-shareholders  of legal age who are employees of the Company or its
          subsidiaries (an "Employee") may authorize a minimum payroll deduction
          investment  of $25 per pay period to purchase  Common  Stock under the
          terms of the Plan.

     o    Full  investment of funds is possible under the Plan because both full
          and fractional shares will be credited to Participants' Plan accounts.

     o    Participants may deposit their Common Stock certificates,  at no cost,
          in their Plan accounts for safekeeping.


                                        3

<PAGE>

     o    Personal  record  keeping is simplified  by the Company's  issuance of
          statements  showing  account  activity.  Statements  of account  are a
          Participant's continuing record of transactions and should be retained
          for tax purposes.

     o    Participants  may sell  shares of Common  Stock held or  deposited  in
          their Plan accounts.

     o    By utilizing volume commission  discounts from Independent Agents, the
          Plan is able to provide investors with an economical means to purchase
          and sell shares of the Company's Common Stock.

     o    For each meeting of  shareholders,  Participants  will receive proxies
          which will enable them to vote both shares  registered  in their names
          and shares credited to their Plan accounts.


ADMINISTRATION

3.   Who administers the Plan?

     Ameren Services Company ("Ameren Services"),  a wholly-owned  subsidiary of
the Company,  will administer the Plan through its Banking and Investor Services
Department  ("Investor  Services").  Among other  things,  Ameren  Services will
receive and hold Participants'  funds pending investment in additional shares of
Common  Stock,  effect  transfers of Common Stock,  keep a continuous  record of
participation  and  prepare  and  send to  each  Participant  statements  of the
Participant's  Plan  account.   The   responsibilities  of  Ameren  Services  in
connection with the administration of the Plan are administrative in nature and,
in large part, are consistent  with the  responsibilities  of Ameren Services in
acting as registered transfer agent for the Company.

     If  the  Company  elects  to  meet  the  requirements  of  Participants  by
purchasing  shares of Common Stock in the open market, an Independent Agent will
act on behalf of Participants in buying such shares.  An Independent  Agent will
also sell Plan shares on behalf of Participants.

     The Company reserves the right to interpret and regulate the Plan as deemed
necessary or desirable,  including the right to limit or deny  participation  in
the Plan where  circumstances  warrant.  Neither the Company nor its Independent
Agents will be liable for any act done in good faith or for any  omission to act
in good  faith,  provided  that  the  Company  shall  not be  relieved  from any
liability  imposed under any federal,  state or other applicable  securities law
which cannot be waived.  You should recognize that the Company cannot assure you
of a profit or protect you against a loss on shares  purchased or sold under the
Plan.

4.   Who  should  I  contact  with   questions   concerning  the  Plan  and  its
     administration?

     You may contact the Company with  questions  concerning the Plan by writing
to:

                     Ameren Services Company
                     Banking and Investor Services Department
                     P.O. Box 66887
                     St. Louis, Missouri 63166-6887

or by  calling  Investor  Services  locally  at  314-554-3502  or  toll-free  at
1-800-255-2237.

     Ameren Services acts as the transfer agent for all  publicly-traded  equity
securities issued by Ameren Corporation and its subsidiaries.

5.   May the Plan be modified or discontinued?

     The Company  reserves the right to suspend,  modify or discontinue the Plan
at any time  including  but not  limited  to the  right to  modify  the fees and
commissions  charged to  Participants.  Any  suspension,  major  modification or
discontinuance of the Plan will be announced by the Company to all Participants.

                                        4

<PAGE>

PARTICIPATION

6.   Who is eligible to participate in the Plan?

     Any person of legal age or entity,  whether or not a holder of Common Stock
or Preferred  Stock,  is eligible to  participate  in the Plan provided that (a)
such person or entity fulfills the  prerequisites  for  participation  described
under Question 7 and (b) participation would not violate the securities or other
laws of the state,  territory or country where the participant  resides that are
applicable to the Company, the Plan or the Participant.

     A Plan  Prospectus  and  enrollment  or  application  information  will  be
furnished upon request made to Investor Services.

7.   How do I enroll in the Plan or change my method of participation?

     After receiving a copy of this Prospectus,  eligible  applicants may become
Participants   in  the  Plan  by  completing  and  signing  an  enrollment  form
(stockholders)  or an  application  (non-  stockholders).  The  minimum  initial
Optional Cash Investment is $25 for stockholders and $250 for  non-stockholders.
The maximum aggregate optional cash investment that may be made by a Participant
in any calendar year is $120,000.

     The  enrollment  and  application  forms require a Participant  to choose a
reinvestment  option for  participation in the Plan. By checking the appropriate
box a Participant may select:

     o    FULL DIVIDEND REINVESTMENT - Automatic  reinvestment of cash dividends
          on all Eligible  Securities  registered in the name of the Participant
          and on all Plan shares credited to the Participant's account.

     o    PARTIAL DIVIDEND REINVESTMENT - Receipt of cash dividends on a portion
          of the Eligible  Securities  registered in the name of the Participant
          and/or a portion  of the Plan  Shares  credited  to the  Participant's
          account,  and  automatic  reinvestment  of the cash  dividends  on the
          remainder of the Participant's shares.

     o    NO DIVIDEND  REINVESTMENT  - Receipt of cash dividends on all Eligible
          Securities  registered in the name of the  Participant and on all Plan
          shares credited to the Participant's account.

     Participants  may  change  their  reinvestment  options by  completing  the
correspondence  portion of their  statement of account or an enrollment form and
sending it to  Investor  Services.  Changes  will  become  effective  as soon as
practicable after they are received.

8.   How does an Employee participate?

     An Employee  may join the Plan at any time by  enrolling in the same manner
as any other eligible person  described under Question 7 or by completing a Plan
Payroll Deduction Authorization Form.


                                        5

<PAGE>

DIVIDEND REINVESTMENT

9.   How and when will cash dividends be reinvested?

     If a Participant has elected full or partial  dividend  reinvestment on the
Eligible   Securities   registered   in  the   Participant's   name  and/or  the
Participant's  Plan  shares,  the  Company  will  reinvest  those  dividends  in
additional  shares of the Company's  Common Stock. The source of Common Stock to
be purchased under the Plan may be, at the discretion of the Company, authorized
but  unissued  or  treasury  shares  of Common  Stock or shares of Common  Stock
purchased  in the open  market or in  privately  negotiated  transactions  by an
Independent Agent.

     If the Company is meeting the  requirements  of the Plan with Common  Stock
purchased  in the  open  market  or in  privately  negotiated  transactions,  an
Independent  Agent will  determine  the exact timing of such  purchases  and the
number  of  shares  to be  purchased,  depending  on the  amount  of  reinvested
dividends,  market  conditions and the requirements of federal  securities laws,
and the purchased shares will be credited to a Participant's  Plan account as of
the applicable  Investment  Date. If the Company elects to issue  authorized but
unissued or treasury shares of its Common Stock,  these shares will be issued by
the Company and  credited to a  Participant's  Plan account by the Company as of
the applicable  Investment Date. The determination of the price for purchases of
Plan shares is explained in Question 16.

     If a Participant's  enrollment form is received by Investor  Services on or
before the record date with respect to any Common Stock or Preferred  Stock cash
dividend  payment date,  then the dividend  payable on such payment date will be
used to purchase  additional  shares of Common Stock as of such payment date (an
Investment  Date). If the enrollment form is received after the record date with
respect to any such cash dividend  payment date, the  reinvestment  of dividends
will start with the dividend payment next following such payment date.

     Each cash  dividend  payment  date on the  Eligible  Securities  will be an
Investment  Date under the Plan;  accordingly,  cash  dividends  payable on each
Common Stock dividend  payment date and on each Preferred Stock dividend payment
date,  which are to be  reinvested,  will be invested in Common Stock as of such
dividend payment date.  Common Stock cash dividend payment dates are normally on
or  about  the  last  business  day of  March,  June,  September  and  December.
AmerenCIPS  Preferred Stock cash dividend payment dates are on or about the last
business day of March,  June,  September and December.  AmerenUE Preferred Stock
cash  dividend  payment  dates are the 15th day of  February,  May,  August  and
November.


OPTIONAL CASH INVESTMENTS

10.  Who is eligible to make Optional Cash Investments?

     All Plan Participants, whether or not they have authorized the reinvestment
of dividends, are eligible to make Optional Cash Investments.

11.  How are Optional Cash Investments made?

     A Plan  Participant  may make an initial cash  investment when enrolling by
enclosing a check with the enrollment form or application. Checks should be made
payable to "Ameren  Corporation," and returned in the envelope provided with the
enrollment form or  application.  Thereafter,  Optional Cash  Investments may be
made by using the cash investment form attached to the statement of account,  by
Automatic Cash  Investment  (see Question 12) or by Employee  payroll  deduction
(see  Question  8).  Please  contact  Investor   Services  for  additional  cash
investment forms.

                                        6

<PAGE>

12.  What is the Automatic  Cash  Investment  option of the Plan and how does it
     work?

     The Automatic  Cash  Investment  option offers  Participants  in the Plan a
direct debit service.  Optional Cash  Investments are  electronically  withdrawn
from your personal  checking or savings  account at least once a month,  usually
near the end of the month,  and used to purchase Common Stock.  The direct debit
from your personal bank account will be shown on the monthly statement from your
financial  institution.  In addition, you will receive a statement from Investor
Services detailing the cash received and shares purchased.

     The Automatic Cash Investment  option may be authorized for regular monthly
amounts  from $25 to  $10,000.  Funds  authorized  for  investment  through  the
Automatic Cash Investment option will be debited  approximately three days prior
to the appropriate Optional Cash Investment Date. (See Question 14)

     For an Automatic Cash Investment application, contact Investor Services.

13.  What are the limitations on making Optional Cash Investments?

     Optional Cash  Investments  cannot be less than $25 per investment ($250 in
the case of the initial  Optional  Cash  Investment by a  non-stockholder).  The
aggregate  Optional Cash  Investment  invested in Plan Shares by any Participant
cannot exceed $120,000 for any calendar year.

14.  When will Optional Cash Investments be invested?

     The option to make cash  investments  is available to you at any time.  The
dates on which Optional Cash  Investments  are used to purchase Common Stock are
determined solely at the discretion of the Company, although purchases on behalf
of Plan Participants  will be made at least once a month.  Purchases may be made
over a  period  of  several  days in the  case of  market  purchases.  All  such
purchases  will be  aggregated  and  credited to  Participants'  accounts on the
Optional Cash Investment Date occurring on or after receipt of the Optional Cash
Investment.  There will usually be an Optional Cash  Investment Date on or about
the 15th day and the last day of each month.  Participants will receive a notice
at the beginning of each year specifying the Optional Cash Investment  Dates for
such year.

     Cash received  after an Optional Cash  Investment  Date will be held by the
Company  until,  and will be invested as of, the next Optional  Cash  Investment
Date. No interest will be paid by the Company on any cash  investments  received
and held by the Company pending investment.


PURCHASES

15.  How many shares of Common Stock will be purchased?

     The number of shares purchased for you under the Plan depends on the amount
of funds you have  available  for  investment  and the price of the shares.  The
funds you have available for investment  depends on what you have  authorized in
regard to dividend reinvestment,  plus any cash investments made. In every case,
your available funds will be fully invested in both whole and fractional  shares
of Common Stock (computed to four decimal places). No one can predict the number
of shares that will be purchased  for you during a particular  purchase  period,
and you cannot direct the Company to purchase a specific number of shares.

                                       7

<PAGE>

16.  What is the price of shares purchased for the Plan?

     If  shares  for the Plan are  being  purchased  in the  open  market  or in
privately negotiated transactions, the price of such shares will be the weighted
average price at which the  Independent  Agent acquired the shares  allocated to
Participants'  accounts  on  the  applicable  Investment  Date  plus  applicable
brokerage  commissions and other fees. If the Company is selling newly-issued or
treasury shares of Common Stock, the price of such shares will be the average of
the high and low sales prices of the  Company's  Common Stock on the  applicable
Investment  Date reported as New York Stock Exchange  Composite  Transactions as
published  in the Midwest  Edition of The Wall Street  Journal or other  similar
financial  publication.  The  Independent  Agent may offset  purchases of shares
against sales of shares to be made for Participants  under the Plan with respect
to an Investment Date, resulting in a net purchase or a net sale of shares.

17.  Who purchases the shares for the Plan?

     The Company,  at its discretion,  may elect to satisfy the  requirements of
the Plan with either  unissued or treasury  shares of Common  Stock or shares of
Common  Stock   purchased  in  the  open  market  or  in  privately   negotiated
transactions.  (See  Question  9) If the Company  elects to  purchase  shares of
Common Stock in the open market or in  privately  negotiated  transactions,  the
Independent   Agent  will  make  all  such  purchases   necessary  to  meet  the
requirements of the Plan.  Other than  establishing the length of the investment
period  incorporated  into the Plan, the Company does not exercise any direct or
indirect  control over the timing or price of purchases made by the  Independent
Agent. If open market or privately negotiated purchases are not made, the shares
issued under the Plan will be issued  directly from the  authorized and unissued
shares of Common Stock of the Company or will be treasury shares.

18.  Are any fees or expenses incurred by Participants?

     Costs  of  administering  the  Plan  will  be  paid  by  the  Company,  but
Participants  will be required to pay brokerage  commissions  and other fees for
shares purchased in the open market and shares sold through the Plan.  Brokerage
commissions  will be at a  negotiated  rate  established  under the terms of the
Company's agreements with Independent Agents. (See Question 5)


SALES AND TERMINATION FROM THE PLAN

19.  May Participants sell or withdraw all or a portion of their shares from the
     Plan?

     Yes. Any Participant may withdraw from the Plan, request that a certificate
be issued  for Plan  shares  or  request  that Plan  shares be sold and the cash
proceeds  forwarded to the  Participant.  Participation  in the Plan is entirely
voluntary. Participants may sell or withdraw all or a portion of their shares by
filling  out  the  correspondence  portion  of  their  account  statement  or by
contacting Investor Services.

     A stock certificate for any whole number of shares will be issued from your
Plan account as soon as  practicable  after  requested.  If you would like stock
certificates  issued  in a  registration  other  than the name on your  account,
contact Investor Services.

     Investor  Services  will  aggregate  Plan sale  requests and place a market
order  with the  Independent  Agent to sell such  shares at least  four  times a
month.  The Participant will receive the proceeds of the sale less any brokerage
commission and any other fees as soon as practicable  after the settlement  date
for the applicable  sale. (See Question 16 concerning  offsetting  purchases and
sales.)

                                        8

<PAGE>

     If a Participant's request for a sale or withdrawal is received by Investor
Services  on or  soon  after a  dividend  payment  date,  such  request  will be
processed as soon as practicable after reinvested dividends have been allocated.

     If a Participant's Plan account contains less than one full share, Investor
Services will sell any fractional  share  remaining in the account,  forward the
proceeds of the sale to the Participant and terminate the account.


REPORTS TO PARTICIPANTS

20.  How will  Participants  be  advised of their  purchase  of shares of Common
     Stock and other activity in their Plan accounts?

     Participants  will  receive a quarterly  statement  as soon as  practicable
following the end of each calendar quarter. The last quarterly statement of each
calendar year will reflect year-to-date Plan activity.  In addition, a statement
will be provided in any month an account has Plan activity. These Statements are
Participants'  continuing  record  of their  Plan  transactions  and  should  be
retained for tax purposes.

     Participants will receive copies of the same  communications  sent to other
registered  shareholders of Common Stock, including the Company's annual report,
notice of annual meeting and proxy statement, and certain tax information.


CERTIFICATES

21.  Will stock certificates  automatically be issued for shares of Common Stock
     acquired under the Plan?

     No. Unless you request  otherwise as described  below, the number of shares
credited to your Plan account  will be held by Ameren  Services,  as agent,  and
will be shown on your statement of account.  This service protects against loss,
theft or destruction of stock certificates.

     A  certificate  for any  number of whole  shares  up to the full  number of
shares  credited to your Plan account will be issued to you if you so request in
writing. (See Question 19) Such request should be mailed to Investor Services.

     Shares credited to your Plan account may not be used as collateral.  If you
wish to use your Plan shares as collateral,  you must request that a certificate
be issued in your name. A certificate  for fractional  shares will not be issued
under any circumstances.


TRANSFER OF SHARES HELD IN THE PLAN

22.  Can Plan shares be transferred?

     Upon written request,  Plan shares can be transferred into names other than
the account name, subject to compliance with any applicable laws and the payment
by the  Participant  of any  applicable  taxes,  provided  that the  request  is
accompanied  by a duly executed Stock Power that bears the  signature(s)  of the
Participant(s) and the signature(s) is/are Medallion  Guaranteed by a commercial
bank or member  firm of the New York Stock  Exchange  that is a member of either
the  STAMP,  SEMP  or  MSP  Medallion  Guarantee  programs.   Unless  instructed
otherwise, Ameren Services will hold the transferred shares in an account in the
transferee's name in the Plan and apply the same dividend  reinvestment  options
as existed with respect to the transferred account.

                                        9

<PAGE>

SAFEKEEPING SERVICE FOR COMMON STOCK CERTIFICATES

23.  What is the Plan's safekeeping service and how does it work?

     The Plan's  safekeeping  service  allows you to deposit  your Common  Stock
certificate(s) into your Plan account.  The benefits of this service include the
convenience  of  keeping  all of your  shares in one place,  and the  protection
against the cost of replacing your  certificates  should they be lost, stolen or
destroyed.  If you would like to take advantage of this service,  please contact
Investor Services.


INCOME TAXES

24.  What are the federal income tax consequences of participation in the Plan?

     In  general,  Participants  in the Plan have the same  federal  income  tax
obligations  with respect to their dividends as do shareholders who are not Plan
Participants. This means that dividends reinvested under the Plan are taxable as
having been received even though the  Participants did not actually receive them
in cash but, instead, used them to purchase additional shares under the Plan.

     The sale of  shares  by a  Participant  under  the Plan may give  rise to a
capital gain or loss,  provided  such shares are held as a capital  asset by the
Participant.  Any such gain or loss will be measured by the  difference  between
the proceeds  received by the Participant  (net of commissions and fees) and the
Participant's tax basis in the shares sold.

     For  Participants   who  are  subject  to  U.S.   withholding  tax,  backup
withholding or foreign taxes,  the Company will withhold the required taxes from
the gross  dividends  or  proceeds  from the sale of shares.  The  dividends  or
proceeds received by the Participant,  or dividends  reinvested on behalf of the
Participant, will be net of the required taxes.

     The  foregoing  is  only  a  general   statement  of  federal   income  tax
consequences.  Each Participant  should consult his or her own tax advisor as to
the specific  application of the tax laws and regulations  governing the Plan as
they relate to such Participant.  The statements of account sent to Participants
should be retained for tax purposes.


                                  LEGAL OPINION

     Steven R. Sullivan, Esq., Vice President,  General Counsel and Secretary of
the  Company,  has  issued  a legal  opinion  as to  certain  legal  matters  in
connection with the Common Stock offered by this Prospectus.


                                     EXPERTS

     The financial  statements  incorporated  in this Prospectus by reference to
the Company's  Annual Report on Form 10-K for the fiscal year ended December 31,
1999   have   been   so    incorporated   in   reliance   on   the   report   of
PricewaterhouseCoopers  LLP, independent accountants,  given on the authority of
said firm as experts in auditing and accounting.


                                       10

<PAGE>






____________________________________         __________________________________
____________________________________         __________________________________


      The Company has not authorized
anyone to give any information or to
make  any representations concerning
the  offering  of  its  Common Stock
under  the Plan except  those  which
are in  this Prospectus or which are
referred  to under "Sources of Addi-
tional Information." If anyone gives
any other  information or  makes any
other representation, you should not
rely  on it.  This Prospectus is not
an  offer to sell or a  solicitation
of an offer to  buy  any  securities
other than the Common  Stock that is                   Ameren Corporation
referred to in this Prospectus.

        ____________________
                                                             DRPlus
                                                     Dividend Reinvestment
              CONTENTS                              and Stock Purchase Plan


Sources of Additional Information..2

The Company........................3                _______________________

Use of Proceeds....................3                       PROSPECTUS

Description of the Plan............3                _______________________

Legal Opinion.....................10

Experts...........................10

        ____________________


     This Prospectus is not an offer
to  sell  or a  solicitation  of  an
offer  to  buy  Common  Stock in any
circumstances  in which the offer or
solicitation is unlawful. You should
not  interpret the  delivery of this
Prospectus,  or  any sale  of Common
Stock   under   the   Plan,  as   an
indication  that  there has  been no
change in the affairs of the Company
since  the date of this  Prospectus.
You should also be aware that infor-
mation in this Prospectus may change
after this date.


____________________________________         __________________________________
____________________________________         __________________________________


<PAGE>



                 PART II. INFORMATION NOT REQUIRED IN PROSPECTUS

Item 14. Other Expenses of Issuance and Distribution.


           Registration fee ................................  $55,935
           Printing and engraving ..........................   10,000*
           Accounting Fees .................................    2,500*
           Legal Fees.......................................    5,000*
           Miscellaneous expenses...........................    5,000*
                                                                -----
                    Total...................................  $78,435*
                                                               ======

           ______________
           * Estimated.


Item 15. Indemnification of Directors and Officers.

     Article IV of the  Registrant's  By-Laws,  consistent  with the  applicable
provisions of the Missouri  General and Business  Corporation Law (the "MGBCL"),
provides for indemnification of directors and officers. These provisions provide
that any person shall be indemnified for expenses and  liabilities  imposed upon
such person in  connection  with any  threatened,  pending or completed  action,
suit, or proceeding,  whether civil, criminal,  administrative or investigative,
other than an action by or in the right of the Registrant, by reason of the fact
that  such  person  is or was a  director,  officer,  employee  or  agent of the
Registrant, or is or was serving at the request of the Registrant as a director,
officer, employee or agent of another corporation,  partnership,  joint venture,
trust  or  other  enterprise,   against  expenses,  including  attorneys'  fees,
judgments, fines and amounts paid in settlement actually and reasonably incurred
by such person in connection with such action, suit or proceeding if such person
acted in good faith and in a manner such person reasonably  believed to be in or
not opposed to the best  interests of the  Registrant,  and, with respect to any
criminal  action or proceeding,  had no reasonable  cause to believe his conduct
was unlawful.

     In a  proceeding  brought  by  or  in  the  right  of  the  Registrant,  no
indemnification  shall be made with  respect to any claim as to which an officer
or director has been adjudged to have been liable to the Registrant,  unless the
court  determines  that such a person  is  reasonably  and  fairly  entitled  to
indemnification  for  expenses.  However,  no  indemnification  shall be made in
respect of any claim,  issue or matter as to which such  person  shall have been
adjudged to be liable for  negligence or misconduct  in the  performance  of his
duty to the Registrant unless and only to the extent that the court in which the
action  or suit was  brought  determines  upon  application  that,  despite  the
adjudication of liability and in view of all the  circumstances of the case, the
person is fairly and  reasonably  entitled to indemnity for such expenses  which
the court shall deem proper.

     The  By-Laws,  consistent  with the  applicable  provisions  of the  MGBCL,
provide  that  indemnification  shall  be  made  by  the  Registrant  only  if a
determination  has been made by a majority vote of a quorum of the disinterested
directors or by the  shareholders  or by  independent  legal  counsel,  that the
director or officer met the  required  standard of conduct.  The  Registrant  is
authorized to purchase  liability  insurance on behalf of an officer or director
whether or not the Registrant would otherwise have the power to indemnify such a
person.

     The  By-Laws,  consistent  with the  applicable  provisions  of the  MGBCL,
further provide that, in addition to the indemnities  described in the preceding
paragraphs,  the Registrant will further indemnify its officers and directors to
the maximum extent permitted by law, provided that no

                                      II-1

<PAGE>

indemnity may be given for conduct that is adjudged to be knowingly  fraudulent,
deliberately dishonest, or willful misconduct.


Item 16. Exhibits.

    Exhibit No.
    ----------

          4.1  Article  III of the  Restated  Articles of  Incorporation  of the
               Registrant (incorporated by reference to Exhibit 3(i) of the Form
               S-4 Registration Statement of the Registrant, Reg. No. 33-64165).

          4.2  By-Laws of the Registrant  (incorporated  by reference to Exhibit
               3(ii) of the Form  10-K of the  Registrant  for the  fiscal  year
               ended December 31, 1997).

          4.3  Certificate   of   Amendment   to  the   Restated   Articles   of
               Incorporation of the Registrant filed with the Secretary of State
               of the State of Missouri on December  14, 1998  (incorporated  by
               reference to Exhibit 3(i) of the Form 10-K of the  Registrant for
               the fiscal year ended December 31, 1998).

          4.4  Agreement  dated as of October 9, 1998 between the Registrant and
               First Chicago  Trust Company of New York, as Rights Agent,  which
               includes the form of  Certificate of Designation of the Preferred
               Shares as Exhibit A, the form of Rights  Certificate as Exhibit B
               and the Summary of Rights as Exhibit C (incorporated by reference
               to Exhibit 4 of the Form 8-K of the Registrant  dated October 14,
               1998).

          5    Opinion  of  Steven  R.  Sullivan  as  to  the  legality  of  the
               securities being issued.

          23.1 Consent of PricewaterhouseCoopers LLP.

          23.2 Consent of Steven R. Sullivan (included in Exhibit 5).

          24   Powers of Attorney.


Item 17. Undertakings.

     (a)  The undersigned Registrant hereby undertakes:

          (1) To file,  during  any  period  in which  offers or sales are being
     made, a post-effective amendment to this registration statement:

               (i)  To include any  prospectus  required by Section  10(a)(3) of
                    the Securities Act of 1933.

               (ii) To reflect  in the  prospectus  any facts or events  arising
                    after the effective date of the  registration  statement (or
                    the most recent  post-effective  amendment  thereof)  which,
                    individually  or in the  aggregate,  represent a fundamental
                    change  in the  information  set  forth in the  registration
                    statement.  Notwithstanding  the foregoing,  any increase or
                    decrease  in  volume  of  securities  offered  (if the total
                    dollar  value of  securities  offered  would not exceed that
                    which was registered) and any deviation from the low or high
                    end of the estimated maximum offering range may be reflected
                    in the form

                                      II-2

<PAGE>

                    of  prospectus  filed with the  Commission  pursuant to Rule
                    424(b) if, in the aggregate, the changes in volume and price
                    represent no more than a 20% change in the maximum aggregate
                    offering price set forth in the "Calculation of Registration
                    Fee" table in the effective registration statement.

               (iii)To include  any  material  information  with  respect to the
                    plan  of  distribution  not  previously   disclosed  in  the
                    registration  statement  or  any  material  change  to  such
                    information in the registration statement.

      (2)     That,  for the  purpose of  determining  any  liability  under the
     Securities Act of 1933, each such post-effective  amendment shall be deemed
     to be a new  registration  statement  relating  to the  securities  offered
     therein,  and the offering of such  securities at that time shall be deemed
     to be the initial bona fide offering thereof.

     Provided, however, that paragraphs (a)(l)(i) and (a)(l)(ii) do not apply if
     the  registration  statement is on Form S-3,  Form S-8 or Form F-3, and the
     information required to be included in a post- effective amendment by those
     paragraphs is contained in periodic  reports filed with or furnished to the
     Commission by the Registrant pursuant to Section 13 or Section 15(d) of the
     Securities  Exchange Act of 1934 that are incorporated by reference in this
     registration statement.

      (3)     To remove from registration by means of a post-effective amendment
     any  of  the  securities  being  registered  which  remain  unsold  at  the
     termination of the offering.

          (b) The undersigned Registrant hereby undertakes that, for purposes of
     determining  any liability under the Securities Act of 1933, each filing of
     the  Registrant's  annual report pursuant to Section 13(a) or Section 15(d)
     of the Securities Exchange Act of 1934 (and, where applicable,  each filing
     of an employee  benefit  plan's annual report  pursuant to Section 15(d) of
     the Securities  Exchange Act of 1934) that is  incorporated by reference in
     the  registration  statement  shall  be  deemed  to be a  new  registration
     statement relating to the securities  offered therein,  and the offering of
     such  securities  at that time shall be deemed to be the initial  bona fide
     offering thereof.

          (c)  Insofar as  indemnification  for  liabilities  arising  under the
     Securities  Act of  1933  may  be  permitted  to  directors,  officers  and
     controlling  persons of the Registrant  pursuant to the provisions referred
     to in Item 15 of this registration statement, or otherwise,  the Registrant
     has  been  advised  that in the  opinion  of the  Securities  and  Exchange
     Commission  such  indemnification  is against public policy as expressed in
     the Act and is,  therefore,  unenforceable.  In the event  that a claim for
     indemnification  against  such  liabilities  (other than the payment by the
     Registrant  of  expenses  incurred  or  paid  by  a  director,  officer  or
     controlling  person of the  Registrant  in the  successful  defense  of any
     action,  suit or  proceeding)  is  asserted  by such  director,  officer or
     controlling person in connection with the securities being registered,  the
     Registrant  will,  unless in the opinion of its counsel the matter has been
     settled  by  controlling  precedent,  submit  to  a  court  of  appropriate
     jurisdiction the question of whether such  indemnification by it is against
     public  policy as  expressed  in the Act and will be  governed by the final
     adjudication of such issue.


                                      II-3

<PAGE>

                                   SIGNATURES


     Pursuant to the  requirements of the Securities Act of 1933, the Registrant
certifies  that  it  has  reasonable  grounds  to  believe  that  it  meets  all
requirements  for  filing  on Form S-3 and has  duly  caused  this  Registration
Statement  to be  signed  on its  behalf  by  the  undersigned,  thereunto  duly
authorized, in the City of St. Louis, and State of Missouri, on June 15, 2000.


                                                  AMEREN CORPORATION



                                                 By   /s/Donald E. Brandt
                                                    -----------------------
                                                         DONALD E. BRANDT
                                                       Senior Vice President

     Pursuant  to  the   requirements  of  the  Securities  Act  of  1933,  this
Registration  Statement  has  been  signed  by  the  following  persons  in  the
capacities and on the date above indicated.


              Signature                                   Title
              ---------                                   -----

/s/    Charles W. Mueller*                   Chairman, President and Chief
------------------------------               Executive Officer and Director
       CHARLES W. MUELLER                    (Principal Executive Officer)




/s/    Donald E. Brandt
-----------------------------                Senior Vice President
       DONALD E. BRANDT                      (Principal Financial Officer)



/s/    Warner L. Baxter
-----------------------------                Vice President and Controller
       WARNER L. BAXTER                      (Principal Accounting Officer)



/s/    William E. Cornelius*                 Director
----------------------------
       WILLIAM E. CORNELIUS



/s/    Clifford L. Greenwalt*                Director
-----------------------------
       CLIFFORD L. GREENWALT



/s/    Thomas A. Hays*                       Director
-----------------------------
       THOMAS A. HAYS

                                      II-4

<PAGE>


/s/    Richard A. Liddy*                     Director
-----------------------------
       RICHARD A. LIDDY



/s/    Gordon R. Lohman*                     Director
-----------------------------
       GORDON R. LOHMAN



/s/    Richard A. Lumpkin*                   Director
-----------------------------
       RICHARD A. LUMPKIN



/s/    John Peters MacCarthy*                Director
-----------------------------
       JOHN PETERS MACCARTHY



/s/    Hanne M. Merriman*                    Director
----------------------------
       HANNE M. MERRIMAN



/s/    Paul L. Miller, Jr.*                  Director
----------------------------
       PAUL L. MILLER, JR.



/s/    Robert H. Quenon*                     Director
----------------------------
       ROBERT H. QUENON



/s/    Harvey Saligman*                      Director
---------------------------
       HARVEY SALIGMAN



/s/                                          Director
---------------------------
       JANET MCAFEE WEAKLEY



/s/    James W. Wogsland*                    Director
---------------------------
       JAMES W. WOGSLAND



                                   *By     /s/ Steven R. Sullivan
                                       -------------------------------
                                               STEVEN R. SULLIVAN
                                                Attorney-In-Fact

                                      II-5



© 2022 IncJournal is not affiliated with or endorsed by the U.S. Securities and Exchange Commission