Company: FORFF
Filing Date: 2025-06-16
Form Type: S-8 POS
Source: 0001104659-25-059694
Chunk: 3

Company: Fortis Inc.
Filing Date: 2025-06-16
Form: S-8 POS
Chunk 3
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<div align='center'>Signature Page to Form S-8 POS</div>

|                    |     | Director |     | June 16, 2025 |
|:-------------------|:----|:---------|:----|:--------------|
| Gianna M. Manes    |     |          |     |               |
|                    |     | Director |     | June 16, 2025 |
| Donald R. Marchand |     |          |     |               |

| * By:               | /s/ Jocelyn H. Perry    |
|                     | Name: Jocelyn H. Perry  |
|                     | Title: Attorney-in-fact |
| Date: June 16, 2025 |                         |

<div align='center'>Signature Page to Form S-8 POS</div>

The Plan. Pursuant to the
requirements of the Securities Act of 1933, as amended, the trustees (or other persons who administer the employee benefit plan) have
duly caused this Post-Effective Amendment No. 3 to the Registration Statement on Form S-8 to be signed on its behalf by the undersigned,
thereunto duly authorized, in the City of Tucson, State of Arizona, on June 16, 2025.

| TUCSON ELECTRIC POWER COMPANY 401(K) PLAN |                                                              |
| By:                                       | /s/ Martha B. Pritz                                          |
| Name:                                     | Martha B. Pritz                                              |
| Title:                                    | Chair of the Tucson Electric Power Company Pension Committee |

<div align='center'>AUTHORIZED REPRESENTATIVE</div>

Pursuant to the requirements of
Section 6(a) of the Securities Act of 1933, the undersigned has signed this Post-Effective Amendment No. 3, solely in the capacity of
the duly authorized representative of Fortis Inc. in the United States, on June 16, 2025.

| FORTISUS INC. |                                       |
| By:           | /s/ David G. Hutchens                 |
| Name:         | David G. Hutchens                     |
| Title:        | President and Chief Executive Officer |

<div align='center'>Plan Signature Page to Form S-8 POS

Exhibit Index</div>

| Exhibit 
 4.1*    
 4.2*    |     | Description                                                                                                                                                                          
 Articles of Continuance of Fortis Inc. (incorporated by reference to Exhibit 3.