Company: MSEX
Filing Date: 2025-07-29
Form Type: 424B5
Source: 0001104659-25-071727
Chunk: 15

Company: MIDDLESEX WATER CO
Filing Date: 2025-07-29
Form: 424B5
Chunk 15
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 Plan.

| 8. | I am not currently a shareholder. 
 How can I enroll in the Plan?     |

To enroll, you must complete
and submit a Direct Share Purchase and Enrollment Form and make an initial investment of at least $500.00. Your initial investment
may be greater, but the maximum is $10,000.00. You have a choice of submitting the Direct Share Purchase and Enrollment Form, which may
be obtained from the Plan Agent Shareholder Services website at under “Forms”
or by calling Customer Service at 1-888-211-0641. You can alternatively utilize the easy to access Broadridge “Buy Stock Direct
Plan Wizard” located on the same website by clicking on the “Purchases and Dividend Reinvestment” tab on the left-hand
side and following the step-by-step process. The “Buy Stock Direct Plan Wizard” will allow you to provide the required banking
information and authorize the Plan Agent to deduct the appropriate funds for your initial share purchase. (Company employees should also
refer to Question 12.)

The Plan Agent will hold
any personal information you provide pursuant to the Privacy Statement, which can be found at .
The Plan Agent will purchase whole shares and allocate fractional shares of Common Stock to equal the dollar amount of your investment,
less any applicable fees.

| 9. | I already own shares, but they                                                        
 are held by my bank or broker and registered in “street name.” How can I participate? |

If you currently own shares
of our Common Stock that are held on your behalf by a bank or broker (that is, in “street name”), you will need to arrange
with your bank or broker to have at least one (1) share registered directly in your name in order to be eligible to participate.
Once the share or shares are registered in your name, you may then enroll in the Plan as described in Question 7. (Company employees
should also refer to Question 12.)

| 10. | Are there fees associated with 
 enrollment in the Plan?        |

There are no brokerage fees
or service charges applicable to purchases of shares under the Plan. The Company pays all general costs of administration of the Plan.
However, you may incur certain charges for certain other transactions, requests or withdrawals under the Plan. These charges include
but are not limited to additional fees for returned checks, returned Automated Clearing House (ACH) transactions, insufficient funds,
overnight mailings, certificate issuance, check replacement, historical research,