Company: MSEX
Filing Date: 2025-07-29
Form Type: 424B5
Source: 0001104659-25-071727
Chunk: 17

Company: MIDDLESEX WATER CO
Filing Date: 2025-07-29
Form: 424B5
Chunk 17
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along with the Direct Share Purchase and Enrollment Form indicating Optional Cash Investment. Please be sure to write the account
number in the memo portion of your check and include a note identifying your account.

Mail your optional investment
payment to:

Broadridge Corporate Issuer Solutions, Inc.P.O. Box 1342
Brentwood, NY 11717

<div align='center'>S-13</div>

| 15. | Can I have optional cash investments         
 automatically deducted from my bank account? |

Yes. You can authorize automatic
deduction from an account at a financial institution that is a member of the National Automated Clearing House Association. You may establish
optional monthly cash purchases of a specified amount (not less than $25.00 or more than $25,000.00 per calendar quarter) to be made
automatically by electronic funds transfer from a predesignated U.S. Bank account. Automatic bank drafts will be initiated as promptly
as practicable. After the automatic bank draft is established, funds will be drawn on the 25 of each month or if that date
falls on a non-business day, the next business day. Visit the shareholder portal
and follow the onscreen instructions in order to access your account.

Method of Payment:

Check– You
may make optional investments during any month by delivering to the Plan Agent a completed purchase coupon (the tear-off portion located
on the bottom of your statement or transaction advice) or Direct Share Purchase and Enrollment Form, and a personal check, money order,
or bank check made payable in U.S. dollars from a U.S. bank to Broadridge Corporate Issuer Solutions, Inc. Cash payments will not
be accepted.

Automatic Bank Draft–
You may pre-authorize the Plan Agent to deduct a set amount ($25.00 minimum) from a U.S. checking, savings or credit union account. To
initiate the bank draft, you must complete and sign the Authorization for Monthly Investments – Optional section of the Direct
Share Purchase and Enrollment Form, and return it to the Plan Agent with a voided check for the bank account from which funds are to
be drafted. Automatic bank drafts will be initiated as promptly as practicable. As an added security measure, the Plan Agent applies
a five business day hold period to the initial linkage of banking account information to your investor account as well as changes made
to established direct deposit or direct debit instructions. This hold period helps prevent unauthorized transactions.

After the automatic bank
draft is established for re