# EDGAR Filing Document

**Accession Number:** 0001114445
**File Stem:** 0001114445-25-000016
**Filing Date:** 2025-8
**Character Count:** 173114
**Document Hash:** 710f2f2cea01ac2520dc57b98247723c
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001114445-25-000016.hdr.sgml**: 20250813

**ACCESSION NUMBER**: 0001114445-25-000016

**CONFORMED SUBMISSION TYPE**: 6-K

**PUBLIC DOCUMENT COUNT**: 7

**CONFORMED PERIOD OF REPORT**: 20250630

**FILED AS OF DATE**: 20250813

**DATE AS OF CHANGE**: 20250813

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** HYDRO ONE INC
- **CENTRAL INDEX KEY:** 0001114445
- **STANDARD INDUSTRIAL CLASSIFICATION:** ELECTRIC SERVICES [4911]
- **ORGANIZATION NAME:** 01 Energy & Transportation
- **EIN:** 000000000

**FILING VALUES:**
- **FORM TYPE:** 6-K
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-36115
- **FILM NUMBER:** 251208975

**BUSINESS ADDRESS:**
- **STREET 1:** 483 BAY STREET
- **STREET 2:** SOUTH TOWER, 8TH FLOOR
- **CITY:** TORONTO
- **STATE:** A6
- **ZIP:** M5G 2P5
- **BUSINESS PHONE:** 416-345-5000

**MAIL ADDRESS:**
- **STREET 1:** 483 BAY STREET
- **STREET 2:** SOUTH TOWER, 8TH FLOOR
- **CITY:** TORONTO
- **STATE:** A6
- **ZIP:** M5G 2P5

**SECURITIES AND EXCHANGE COMMISSION**

**WASHINGTON, D.C. 20549**

**FORM 6-K**

**REPORT OF FOREIGN PRIVATE ISSUER**

**Pursuant to Rule 13a-16 or 15d-16 under**

**the Securities Exchange Act of 1934**

**For the month of: August 2025**

**Commission File Number: 001-36115**

**HYDRO ONE INC.**

**(Translation of Registrant's name into English)**

**483 Bay Street, South Tower, 8th Floor, Toronto Ontario M5G 2P5 Canada**

**(Address of principal executive offices)**

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

Form 20-F ☐&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Form 40-F ☒

------

**EXHIBIT INDEX**

---

| | |
|:---|:---|
| <u>[99.1](a2025q2hoifs.htm)</u> | Unaudited interim consolidated financial statements of the Registrant as at and for the three and six months ended June 30, 2025 and 2024 |
| <u>[99.2](a2025q2hoimda.htm)</u> | Management's Discussion and Analysis of the Registrant as at and for the three and six months ended June 30, 2025 and 2024 |
| <u>[99.3](a2025q2hoi-ceocert.htm)</u> | Certification of President and Chief Executive Officer |
| <u>[99.4](a2025q2hoi-cfocert.htm)</u> | Certification of Executive Vice President, Chief Financial and Regulatory Officer |

---

------

**SIGNATURE**

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

---

| | |
|:---|:---|
| **HYDRO ONE INC.** | **HYDRO ONE INC.** |
| /s/ Harry Taylor | /s/ Harry Taylor |
| Name: Harry Taylor | Name: Harry Taylor |
| Title: Executive Vice President, Chief Financial and Regulatory Officer | Title: Executive Vice President, Chief Financial and Regulatory Officer |
| Date: | August 13, 2025 |

---

## Exhibit 99.1

**HYDRO ONE INC.**

**CONDENSED INTERIM CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (unaudited)** 

**For the three and six months ended June 30, 2025 and 2024** 

---

| | | | | |
|:---|:---|:---|:---|:---|
| | **Three months ended June 30** | **Three months ended June 30** | **Six months ended June 30** | **Six months ended June 30** |
|<br>*(millions of Canadian dollars, except per share amounts)* | **2025** | **2024** | **2025** | **2024** |
| **Revenues** |  |  |  |  |
| Distribution (includes related party revenues of $111 and $222 (2024 - $107 and $213) for the three and six months ended June 30, respectively) *(Note 22)* | 1434 | 1436 | 3195 | 3041 |
| Transmission (includes related party revenues of $614 and $1,236 (2024 - $580 and $1,131) for the three and six months ended June 30, respectively) *(Note 22)* | 622 | 583 | 1258 | 1136 |
|  | 2056 | 2019 | 4453 | 4177 |
| **Costs** |  |  |  |  |
| Purchased power (includes related party costs of $459 and $1,389 (2024 - $488 and $1,313) for the three and six months ended June 30, respectively) *(Note 22)* | 899 | 940 | 2119 | 2036 |
| Operation, maintenance and administration *(Note 22)* | 307 | 308 | 627 | 620 |
| Depreciation, amortization and asset removal costs *(Note 4)* | 285 | 260 | 546 | 511 |
|  | 1491 | 1508 | 3292 | 3167 |
| **Income before financing charges and income tax expense** | **565** | **511** | **1161** | **1010** |
| Financing charges *(Note 5)* | 165 | 155 | 327 | 302 |
| **Income before income tax expense** | **400** | **356** | **834** | **708** |
| Income tax expense *(Note 6)* | 64 | 57 | 133 | 110 |
| **Net income** | **336** | **299** | **701** | **598** |
| Other comprehensive income (loss) | 2 | (1) | 1 | 3 |
| **Comprehensive income** | **338** | **298** | **702** | **601** |
| **Net income attributable to:** |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Noncontrolling interest | 2 | 3 | 5 | 5 |
| &nbsp;&nbsp;&nbsp;&nbsp;Common shareholder | 334 | 296 | 696 | 593 |
|  | **336** | **299** | **701** | **598** |
| **Comprehensive income attributable to:** |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Noncontrolling interest | 2 | 3 | 5 | 5 |
| &nbsp;&nbsp;&nbsp;&nbsp;Common shareholder | 336 | 295 | 697 | 596 |
|  | **338** | **298** | **702** | **601** |
| Basic earnings per common share *(Note 20)* | $2348 | $2081 | $4893 | $4169 |

---

*See accompanying notes to Condensed Interim Consolidated Financial Statements (unaudited).* 

---

| | |
|:---|:---|
| 1 | ![hydroonelogo2.jpg](hydroonelogo2.jpg) |

---

------

**HYDRO ONE INC.**

**CONDENSED INTERIM CONSOLIDATED BALANCE SHEETS (unaudited)**

**As at June 30, 2025 and December 31, 2024** 

---

| | | |
|:---|:---|:---|
| **As at** *(millions of Canadian dollars)* | **June 30,<br>2025** | **December 31,<br>2024** |
| **Assets** | | |
| Current assets: |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Cash and cash equivalents | 48 | 690 |
| &nbsp;&nbsp;&nbsp;&nbsp;Accounts receivable *(Note 7)* | 975 | 909 |
| &nbsp;&nbsp;&nbsp;&nbsp;Due from related parties | 634 | 571 |
| &nbsp;&nbsp;&nbsp;&nbsp;Other current assets *(Note 8)* | 151 | 159 |
|  | 1808 | 2329 |
| Property, plant and equipment *(Note 9)* | 30133 | 28969 |
| Other long-term assets: |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Regulatory assets *(Note 11)* | 3633 | 3503 |
| &nbsp;&nbsp;&nbsp;&nbsp;Deferred income tax assets | 7 | 7 |
| &nbsp;&nbsp;&nbsp;&nbsp;Intangible assets *(Note 10)*  | 642 | 656 |
| &nbsp;&nbsp;&nbsp;&nbsp;Goodwill | 373 | 373 |
| &nbsp;&nbsp;&nbsp;&nbsp;Other assets *(Note 12)* | 1127 | 761 |
|  | 5782 | 5300 |
| **Total assets** | **37723** | **36598** |
| **Liabilities** |  |  |
| Current liabilities: |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Short-term notes payable *(Note 15)* | 1371 | 200 |
| &nbsp;&nbsp;&nbsp;&nbsp;Long-term debt payable within one year *(Notes 15, 16)* | 900 | 1150 |
| &nbsp;&nbsp;&nbsp;&nbsp;Accounts payable and other current liabilities *(Note 13)* | 1918 | 1779 |
| &nbsp;&nbsp;&nbsp;&nbsp;Due to related parties | 221 | 409 |
|  | 4410 | 3538 |
| Long-term liabilities: |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Long-term debt *(Notes 15, 16)* | 15405 | 15905 |
| &nbsp;&nbsp;&nbsp;&nbsp;Regulatory liabilities *(Note 11)* | 1727 | 1476 |
| &nbsp;&nbsp;&nbsp;&nbsp;Deferred income tax liabilities | 1644 | 1452 |
| &nbsp;&nbsp;&nbsp;&nbsp;Other long-term liabilities *(Note 14)* | 1751 | 1750 |
|  | 20527 | 20583 |
| **Total liabilities** | **24937** | **24121** |
| *Contingencies and Commitments (Notes 24, 25)* |  |  |
| *Subsequent Events (Note 27)* |  |  |
| Noncontrolling interest subject to redemption | 19 | 19 |
| **Equity** |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Common shares *(Note 18)* | 2957 | 2957 |
| &nbsp;&nbsp;&nbsp;&nbsp;Retained earnings | 9756 | 9454 |
| &nbsp;&nbsp;&nbsp;&nbsp;Accumulated other comprehensive loss | (17) | (18) |
| &nbsp;&nbsp;&nbsp;&nbsp;Hydro One shareholder's equity | 12696 | 12393 |
| &nbsp;&nbsp;&nbsp;&nbsp;Noncontrolling interest | 71 | 65 |
| **Total equity** | **12767** | **12458** |
|  | **37723** | **36598** |

---

*See accompanying notes to Condensed Interim Consolidated Financial Statements (unaudited).* 

---

| | |
|:---|:---|
| 2 | ![hydroonelogo2.jpg](hydroonelogo2.jpg) |

---

------

**HYDRO ONE INC.**

**CONDENSED INTERIM CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY (unaudited)**

**For the six months ended June 30, 2025 and 2024**

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| <br>**Six months ended June 30, 2025**<br>*(millions of Canadian dollars)* | <br>**Common**<br>**Shares** | **<br>Retained<br>Earnings** | **Accumulated<br>Other<br>Comprehensive<br>Loss** | **<br>Hydro One<br>Shareholder's<br>Equity** | **Non-<br>controlling<br>Interest** | **<br>Total<br>Equity** |
| January 1, 2025 | 2957 | 9454 | (18) | 12393 | 65 | 12458 |
| Net income |  | 696 |  | 696 | 4 | 700 |
| Other comprehensive income (loss) |  |  | 1 | 1 |  | 1 |
| Distributions to noncontrolling interest |  |  |  |  | (6) | (6) |
| Contributions from sale of noncontrolling interest |  |  |  |  | 8 | 8 |
| Dividends on common shares *(Note 19)* |  | (394) |  | (394) |  | (394) |
| **June 30, 2025** | **2957** | **9756** | **(17)** | **12696** | **71** | **12767** |

---

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| <br>**Six months ended June 30, 2024**<br>*(millions of Canadian dollars)* | <br>**Common**<br>**Shares** | **<br>Retained<br>Earnings** | **Accumulated<br>Other<br>Comprehensive<br>Loss** | **<br>Hydro One<br>Shareholder's<br>Equity** | **Non-<br>controlling<br>Interest** | **<br>Total<br>Equity** |
| January 1, 2024 | 2957 | 9033 | (9) | 11981 | 65 | 12046 |
| Net income |  | 593 |  | 593 | 4 | 597 |
| Other comprehensive income (loss) |  |  | 3 | 3 |  | 3 |
| Distributions to noncontrolling interest |  |  |  |  | (4) | (4) |
| Dividends on common shares *(Note 19)* |  | (363) |  | (363) |  | (363) |
| **June 30, 2024** | **2957** | **9263** | **(6)** | **12214** | **65** | **12279** |

---

*See accompanying notes to Condensed Interim Consolidated Financial Statements (unaudited).* 

---

| | |
|:---|:---|
| 3 | ![hydroonelogo2.jpg](hydroonelogo2.jpg) |

---

------

**HYDRO ONE INC.**

**CONDENSED INTERIM CONSOLIDATED STATEMENTS OF CASH FLOWS (unaudited)** 

**For the three and six months ended June 30, 2025 and 2024**

---

| | | | | |
|:---|:---|:---|:---|:---|
| | **Three months ended June 30** | **Three months ended June 30** | **Six months ended June 30** | **Six months ended June 30** |
|<br>*(millions of Canadian dollars)* | **2025** | **2024** | **2025** | **2024** |
| **Operating activities** |  |  |  |  |
| Net income | 336 | 299 | 701 | 598 |
| Environmental expenditures |  | (4) | (1) | (7) |
| Adjustments for non-cash items: |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Depreciation and amortization *(Note 4)* | 229 | 220 | 459 | 439 |
| &nbsp;&nbsp;&nbsp;&nbsp;Regulatory assets and liabilities | 16 | (37) | 71 | 15 |
| &nbsp;&nbsp;&nbsp;&nbsp;Deferred income tax expense | 36 | 48 | 71 | 91 |
| &nbsp;&nbsp;&nbsp;&nbsp;Other | 5 | (7) | 5 | (8) |
| Changes in non-cash balances related to operations *(Note 23)* | (11) | 311 | (192) | 153 |
| **Net cash from operating activities** | **611** | **830** | **1114** | **1281** |
| **Financing activities** |  |  |  |  |
| Long-term debt issued |  |  |  | 800 |
| Long-term debt repaid | (350) | (700) | (750) | (700) |
| Short-term notes issued | 2065 | 1095 | 3140 | 1595 |
| Short-term notes repaid | (1350) | (715) | (1965) | (995) |
| Dividends paid *(Note 19)* | (207) | (187) | (394) | (363) |
| Distributions paid to noncontrolling interest | (2) | (2) | (7) | (6) |
| Contributions received from sale of noncontrolling interest | 8 |  | 8 |  |
| Change in bank indebtedness |  |  |  | (17) |
| Costs to obtain financing | (1) | (2) | (1) | (7) |
| **Net cash from (used in) financing activities** | **163** | **(511)** | **31** | **307** |
| **Investing activities** |  |  |  |  |
| Capital expenditures *(Note 23)* |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Property, plant and equipment | (783) | (708) | (1401) | (1350) |
| &nbsp;&nbsp;&nbsp;&nbsp;Intangible assets | (8) | (26) | (29) | (48) |
| Additions to future use assets | (43) | (110) | (102) | (129) |
| Investment in East-West Tie Limited Partnership *(Note 12)* |  |  | (261) |  |
| Capital contributions received  |  |  | 4 | 2 |
| Other | 1 | 1 | 2 | 1 |
| **Net cash used in investing activities** | **(833)** | **(843)** | **(1787)** | **(1524)** |
| **Net change in cash and cash equivalents** | (59) | (524) | (642) | 64 |
| Cash and cash equivalents, beginning of period | 107 | 588 | 690 |  |
| **Cash and cash equivalents, end of period** | **48** | **64** | **48** | **64** |

---

*See accompanying notes to Condensed Interim Consolidated Financial Statements (unaudited).*

---

| | |
|:---|:---|
| 4 | ![hydroonelogo2.jpg](hydroonelogo2.jpg) |

---

------

**HYDRO ONE INC.**

**NOTES TO CONDENSED INTERIM CONSOLIDATED FINANCIAL STATEMENTS (unaudited)**

**For the three and six months ended June 30, 2025 and 2024**

**1.&nbsp;&nbsp;&nbsp;&nbsp;DESCRIPTION OF THE BUSINESS**

Hydro One Inc. (Hydro One or the Company) was incorporated on December 1, 1998, under the Business Corporations Act (Ontario) and is wholly-owned by Hydro One Limited. The businesses of Hydro One are comprised of the following three segments:

• The Transmission segment owns and operates Hydro One's transmission system which transmits high voltage electricity across the province, interconnecting local distribution companies and certain large directly connected industrial customers throughout the Ontario electricity grid. The transmission business consists of the transmission system operated by Hydro One's rate-regulated subsidiaries, Hydro One Networks Inc. (Hydro One Networks), Hydro One Sault Ste. Marie LP (HOSSM), and an approximate 90% interest in Chatham x Lakeshore Limited Partnership (CLLP), an approximate 66% interest in B2M Limited Partnership (B2M LP), and an approximate 55% interest in Niagara Reinforcement Limited Partnership (NRLP). The Transmission segment also includes Hydro One Network's approximate 48% minority interest in the East-West Tie Limited Partnership (EWT LP) which was completed on March 4, 2025.

• The Distribution segment owns and operates Hydro One's distribution system which delivers electricity to end customers and certain other municipal electricity distributors within Ontario. The distribution business consists of the distribution systems operated by Hydro One's rate-regulated subsidiaries, Hydro One Networks and Hydro One Remote Communities Inc. (Hydro One Remotes).

• The Other segment consists of certain corporate activities and is not rate-regulated.

Earnings for interim periods are impacted by seasonal weather conditions affecting customer demand, market pricing, and the timing of regulatory decisions.

**2.&nbsp;&nbsp;&nbsp;&nbsp;SIGNIFICANT ACCOUNTING POLICIES**

**Basis of Consolidation and Presentation** 

These unaudited condensed interim consolidated financial statements (Consolidated Financial Statements) include the accounts of the Company and its subsidiaries. Inter-company transactions and balances have been eliminated.

**Basis of Accounting** 

These Consolidated Financial Statements are prepared and presented in accordance with United States (U.S.) generally accepted accounting principles (GAAP) for interim financial statements and all financial information is presented in Canadian dollars.

The accounting policies applied are consistent with those outlined in Hydro One's annual audited consolidated financial statements for the year ended December 31, 2024, with the exception of the adoption of new accounting standards as described in Note 3 - New Accounting Pronouncements, and the inclusion of Equity Method Investments following Hydro One Networks' acquisition of a minority interest in EWT LP in the first quarter of this year. These Consolidated Financial Statements reflect adjustments, that are, in the opinion of management, necessary to fairly reflect the financial position and results of operations for the respective periods. These Consolidated Financial Statements do not include all disclosures required in the annual financial statements and should be read in conjunction with Hydro One's annual audited consolidated financial statements for the year ended December 31, 2024.

**Equity Method Investments**

The Company accounts for its investments in entities over which it has significant influence but not a controlling interest using the equity method of accounting. Significant influence is generally presumed to exist when the Company owns 20% to 50% of the voting stock of the investee, but can also exist when the Company owns less than 20% if it has the ability to exercise significant influence through other means. Under this method, the investment is initially recorded at cost and subsequently adjusted to recognize the Company's share of the earnings or losses of the investee, as well as any distributions received from the investee.

---

| | |
|:---|:---|
| 5 | ![hydroonelogo2.jpg](hydroonelogo2.jpg) |

---

------

**HYDRO ONE INC.**

**NOTES TO CONDENSED INTERIM CONSOLIDATED FINANCIAL STATEMENTS (unaudited) (continued)**

**For the three and six months ended June 30, 2025 and 2024**

**3.&nbsp;&nbsp;&nbsp;&nbsp;NEW ACCOUNTING PRONOUNCEMENTS**

The following table presents Accounting Standard Updates (ASUs) issued by the Financial Accounting Standards Board (FASB) that are applicable to Hydro One:

**Accounting Guidance To Be Adopted in 2025**

---

| | | | | |
|:---|:---|:---|:---|:---|
| **Guidance** | **Date issued** | **Description** | **ASU Effective Date** | **Impact on Hydro One** |
| ASU 2024-02 | March 2024 | The amendments contain modifications to the codification that remove various concept statements which may be extraneous and not required to understand or apply the guidance or references used in prior statements to provide guidance in certain topical areas. | Fiscal years beginning after December 15, 2024. | No impact upon adoption |
| ASU 2023-09 | December 2023 | The amendments address investor requests for more transparency about income tax information through improvements to income tax disclosures primarily related to the rate reconciliation and income taxes paid information. | Annual periods beginning after December 15, 2024. | Under assessment |

---

**Recently Issued Accounting Guidance Not Yet Adopted**

---

| | | | | |
|:---|:---|:---|:---|:---|
| **Guidance** | **Date issued** | **Description** | **ASU Effective Date** | **Impact on Hydro One** |
| ASU 2023-06 | October 2023 | The amendments represent changes to clarify or improve disclosure or presentation requirements of a variety of subtopics in the FASB Codification. Many of the amendments allow users to more easily compare entities subject to the U.S. Securities and Exchange's (SEC) existing disclosures with those entities that were not previously subject to the SEC's requirements. Also, the amendments align the requirements in the Codification with the SEC's regulations.<br>Applicable to all entities, if by June 30, 2027 the SEC has not removed the applicable requirement from Regulation S-X or Regulation S-K, the pending content of the related amendment will be removed from the Codification and will not become effective for any entity. | Two years subsequent to the date on which the SEC's removal of that related disclosure becomes effective. | Under assessment |
| ASU<br>2024-03 | November 2024 | The amendments require public business entities to disclose additional information about specific expense categories in the notes to financial statements at interim and annual reporting periods, which are not generally presented in the current financial statements. | Annual periods beginning after December 15, 2026, and interim periods beginning after December 15, 2027. | Under assessment |
| ASU 2025-03 | May 2025 | The amendments require entities to apply the guidance for identifying the accounting acquirer in transactions where a business that qualifies as a Variable Interest Entity (VIE) is acquired through the exchange of equity interests. | Annual and interim periods beginning after December 15, 2026. | Under assessment |
| ASU 2025-05 | July 2025 | The amendments allow all entities to use a practical expedient when estimating expected credit losses for current accounts receivable and contract assets under Topic 606, by assuming that current conditions as of the balance sheet date remain unchanged over the asset's life. Additionally, entities other than public business entities that elect this expedient may adopt an accounting policy to consider post–balance sheet date collection activity in their credit loss estimates. | Annual and interim periods beginning after December 15, 2025. | Under assessment |

---

---

| | |
|:---|:---|
| 6 | ![hydroonelogo2.jpg](hydroonelogo2.jpg) |

---

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**HYDRO ONE INC.**

**NOTES TO CONDENSED INTERIM CONSOLIDATED FINANCIAL STATEMENTS (unaudited) (continued)**

**For the three and six months ended June 30, 2025 and 2024**

**4.&nbsp;&nbsp;&nbsp;&nbsp;DEPRECIATION, AMORTIZATION AND ASSET REMOVAL COSTS**

---

| | | | | |
|:---|:---|:---|:---|:---|
| | **Three months ended June 30** | **Three months ended June 30** | **Six months ended June 30** | **Six months ended June 30** |
|<br>*(millions of dollars)* | **2025** | **2024** | **2025** | **2024** |
| Depreciation of property, plant and equipment | 207 | 197 | 415 | 394 |
| Amortization of intangible assets | 22 | 19 | 43 | 38 |
| Amortization of regulatory assets |  | 4 | 1 | 7 |
| Depreciation and amortization | 229 | 220 | 459 | 439 |
| Asset removal costs | 56 | 40 | 87 | 72 |
|  | 285 | 260 | 546 | 511 |

---

**5.&nbsp;&nbsp;&nbsp;&nbsp;FINANCING CHARGES**

---

| | | | | |
|:---|:---|:---|:---|:---|
| | **Three months ended June 30** | **Three months ended June 30** | **Six months ended June 30** | **Six months ended June 30** |
|<br>*(millions of dollars)* | **2025** | **2024** | **2025** | **2024** |
| Interest on long-term debt | 179 | 161 | 356 | 324 |
| Interest on regulatory accounts | 6 | 8 | 13 | 14 |
| Interest on short-term notes | 6 | 7 | 9 | 12 |
| Realized loss (gain) on cash flow hedges (interest-rate swap agreements) *(Note 16)* | 1 | (2) | 2 | (3) |
| Other | 3 | 6 | 6 | 9 |
| Less: Interest capitalized on construction and development in progress | (27) | (22) | (51) | (41) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Interest earned on cash and cash equivalents | (3) | (3) | (8) | (13) |
|  | 165 | 155 | 327 | 302 |

---

**6.&nbsp;&nbsp;&nbsp;&nbsp;INCOME TAXES**

As a rate-regulated utility company, the Company recovers income taxes from its ratepayers based on estimated current income tax expense in respect of its regulated business. The amounts of deferred income taxes related to regulated operations which are considered to be more likely-than-not to be recoverable from, or refundable to, ratepayers in future periods are recognized as deferred income tax regulatory assets or deferred income tax regulatory liabilities, with an offset to deferred income tax recovery or deferred income tax expense, respectively. The Company's consolidated income tax expense or income tax recovery for the period includes all current and deferred income tax expenses for the period net of the regulated accounting offset to deferred income tax expense arising from temporary differences to be recovered from, or refunded to, customers in future rates. Thus, the Company's income tax expense or income tax recovery differs from the amount that would have been recorded using the combined Canadian federal and Ontario statutory income tax rate.

The reconciliation between the statutory and the effective tax rates is provided as follows:

---

| | | | | |
|:---|:---|:---|:---|:---|
| | **Three months ended June 30** | **Three months ended June 30** | **Six months ended June 30** | **Six months ended June 30** |
|<br>*(millions of dollars)* | **2025** | **2024** | **2025** | **2024** |
| Income before income tax expense | 400 | 356 | 834 | 708 |
| Income tax expense at statutory rate of 26.5% (2024 - 26.5%) | 106 | 94 | 221 | 188 |
| Increase (decrease) resulting from: |  |  |  |  |
| Net temporary differences recoverable in future rates charged to customers: |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Capital cost allowance in excess of depreciation and amortization | (22) | (19) | (44) | (41) |
| &nbsp;&nbsp;&nbsp;&nbsp;Overheads capitalized for accounting but deducted for tax purposes | (12) | (9) | (24) | (20) |
| &nbsp;&nbsp;&nbsp;&nbsp;Interest capitalized for accounting but deducted for tax purposes | (8) | (5) | (17) | (11) |
| &nbsp;&nbsp;&nbsp;&nbsp;Pension and post-retirement benefit contributions in excess of expense | (2) | (1) | (3) | (2) |
| &nbsp;&nbsp;&nbsp;&nbsp;Environmental expenditures |  | (1) |  | (2) |
| &nbsp;&nbsp;&nbsp;&nbsp;Other | 1 | (1) | (1) | (1) |
| Net temporary differences attributable to regulated business | (43) | (36) | (89) | (77) |
| Net permanent differences | 1 | (1) | 1 | (1) |
| Total income tax expense | 64 | 57 | 133 | 110 |

---

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| | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| Effective income tax rate | 16.0 | % | 16.0 | % | 15.9 | % | 15.5 | % |

---

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| | |
|:---|:---|
| 7 | ![hydroonelogo2.jpg](hydroonelogo2.jpg) |

---

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**HYDRO ONE INC.**

**NOTES TO CONDENSED INTERIM CONSOLIDATED FINANCIAL STATEMENTS (unaudited) (continued)**

**For the three and six months ended June 30, 2025 and 2024**

**7.&nbsp;&nbsp;&nbsp;&nbsp;ACCOUNTS RECEIVABLE**

---

| | | |
|:---|:---|:---|
| **As at** *(millions of dollars)* | **June 30,<br>2025** | **December 31,<br>2024** |
| Accounts receivable - billed | 514 | 432 |
| Accounts receivable - unbilled | 524 | 538 |
| Accounts receivable, gross | 1038 | 970 |
| Allowance for doubtful accounts | (63) | (61) |
| Accounts receivable, net | 975 | 909 |

---

The following table shows the movements in the allowance for doubtful accounts for the six months ended June 30, 2025 and the year ended December 31, 2024:

---

| | | |
|:---|:---|:---|
| **As at** *(millions of dollars)* | **June 30,<br>2025** | **December 31,<br>2024** |
| Allowance for doubtful accounts – beginning | (61) | (57) |
| Write-offs | 8 | 18 |
| Additions to allowance for doubtful accounts | (10) | (22) |
| Allowance for doubtful accounts – ending | (63) | (61) |

---

**8. &nbsp;&nbsp;&nbsp;&nbsp;OTHER CURRENT ASSETS**

---

| | | |
|:---|:---|:---|
| **As at** *(millions of dollars)* | **June 30,<br>2025** | **December 31,<br>2024** |
| Prepaid expenses and other assets | 90 | 88 |
| Regulatory assets *(Note 11)* | 31 | 42 |
| Materials and supplies | 30 | 29 |
|  | 151 | 159 |

---

**9.&nbsp;&nbsp;&nbsp;&nbsp;PROPERTY, PLANT AND EQUIPMENT**

---

| | | |
|:---|:---|:---|
| **As at** *(millions of dollars)* | **June 30,<br>2025** | **December 31,<br>2024** |
| Property, plant and equipment | 42008 | 41150 |
| Less: accumulated depreciation | (14632) | (14281) |
|  | 27376 | 26869 |
| Construction in progress | 2757 | 2100 |
|  | 30133 | 28969 |

---

**10. INTANGIBLE ASSETS**

---

| | | |
|:---|:---|:---|
| **As at** *(millions of dollars)* | **June 30,<br>2025** | **December 31,<br>2024** |
| Intangible assets | 1536 | 1481 |
| Less: accumulated depreciation | (919) | (876) |
|  | 617 | 605 |
| Development in progress | 25 | 51 |
|  | 642 | 656 |

---

---

| | |
|:---|:---|
| 8 | ![hydroonelogo2.jpg](hydroonelogo2.jpg) |

---

------

**HYDRO ONE INC.**

**NOTES TO CONDENSED INTERIM CONSOLIDATED FINANCIAL STATEMENTS (unaudited) (continued)**

**For the three and six months ended June 30, 2025 and 2024**

**11.&nbsp;&nbsp;&nbsp;&nbsp;REGULATORY ASSETS AND LIABILITIES**

Regulatory assets and liabilities arise as a result of the rate-setting process. Hydro One has recorded the following regulatory assets and liabilities:

---

| | | |
|:---|:---|:---|
| **As at** *(millions of dollars)* | **June 30,<br>2025** | **December 31,<br>2024** |
| **Regulatory assets:** | | |
| &nbsp;&nbsp;&nbsp;&nbsp;Deferred income tax regulatory asset | 3389 | 3263 |
| &nbsp;&nbsp;&nbsp;&nbsp;Broadband deferral | 63 | 48 |
| &nbsp;&nbsp;&nbsp;&nbsp;Post-retirement and post-employment benefits - non-service cost | 61 | 72 |
| &nbsp;&nbsp;&nbsp;&nbsp;Environmental | 43 | 44 |
| &nbsp;&nbsp;&nbsp;&nbsp;Getting Ontario Connected Act variance | 25 | 24 |
| &nbsp;&nbsp;&nbsp;&nbsp;Stock-based compensation | 18 | 24 |
| &nbsp;&nbsp;&nbsp;&nbsp;Rural and remote rate protection variance | 10 | 18 |
| &nbsp;&nbsp;&nbsp;&nbsp;Other | 55 | 52 |
| Total regulatory assets | 3664 | 3545 |
| Less: current portion | (31) | (42) |
|  | 3633 | 3503 |
| **Regulatory liabilities:** |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Pension benefit regulatory liability | 744 | 647 |
| &nbsp;&nbsp;&nbsp;&nbsp;Post-retirement and post-employment benefits | 376 | 376 |
| &nbsp;&nbsp;&nbsp;&nbsp;Retail settlement variance (RSVA) | 203 | 157 |
| &nbsp;&nbsp;&nbsp;&nbsp;Earnings sharing mechanism (ESM) deferral | 145 | 150 |
| &nbsp;&nbsp;&nbsp;&nbsp;Distribution rate riders | 58 | 45 |
| &nbsp;&nbsp;&nbsp;&nbsp;External revenue variance | 52 | 31 |
| &nbsp;&nbsp;&nbsp;&nbsp;Other post-employment benefits (OPEB) asymmetrical carrying charge variance | 41 | 33 |
| &nbsp;&nbsp;&nbsp;&nbsp;Capitalized overhead tax variance | 38 | 38 |
| &nbsp;&nbsp;&nbsp;&nbsp;Tax rule changes variance | 35 | 34 |
| &nbsp;&nbsp;&nbsp;&nbsp;Asset removal costs cumulative variance | 27 | 26 |
| &nbsp;&nbsp;&nbsp;&nbsp;Pension cost differential | 22 | 21 |
| &nbsp;&nbsp;&nbsp;&nbsp;Deferred income tax regulatory liability | 8 | 4 |
| &nbsp;&nbsp;&nbsp;&nbsp;Other | 32 | 36 |
| Total regulatory liabilities | 1781 | 1598 |
| Less: current portion | (54) | (122) |
|  | 1727 | 1476 |

---

---

| | |
|:---|:---|
| 9 | ![hydroonelogo2.jpg](hydroonelogo2.jpg) |

---

------

**HYDRO ONE INC.**

**NOTES TO CONDENSED INTERIM CONSOLIDATED FINANCIAL STATEMENTS (unaudited) (continued)**

**For the three and six months ended June 30, 2025 and 2024**

**Distribution Rate Riders** 

As part of the Joint Rate Application (JRAP) Decision, the Ontario Energy Board (OEB) approved the disposition of certain deferral and variance account balances as at December 31, 2020, including accrued interest. These approved balances, including those for RSVA, tax rule changes variance, and pension cost differential were accumulated in distribution rate riders. The amounts are being disposed of over a three-year period ending December 31, 2025. As part of Hydro One Networks' application for 2025 distribution rates, the OEB approved the disposition of certain balances as at December 31, 2023, including accrued interest on an interim basis. This amount is being disposed of over a one-year period ending December 31, 2025. This rider, together with those approved in JRAP, make up the majority of this balance.

**12.&nbsp;&nbsp;&nbsp;&nbsp;OTHER LONG-TERM ASSETS**

---

| | | |
|:---|:---|:---|
| **As at** *(millions of dollars)* | **June 30,<br>2025** | **December 31,<br>2024** |
| Deferred pension assets | 744 | 647 |
| Investments in associates<sup>1</sup> | 262 |  |
| Right-of-Use assets | 47 | 54 |
| Other long-term assets | 74 | 60 |
|  | 1127 | 761 |

---

<sup>1</sup> On March 4, 2025, Hydro One Networks completed the acquisition of an approximate 48% interest in the EWT LP for approximately $261 million in cash, including closing adjustments.

**13.&nbsp;&nbsp;&nbsp;&nbsp;ACCOUNTS PAYABLE AND OTHER CURRENT LIABILITIES**

---

| | | |
|:---|:---|:---|
| **As at** *(millions of dollars)* | **June 30,<br>2025** | **December 31,<br>2024** |
| Accrued liabilities | 970 | 776 |
| Accounts payable | 350 | 339 |
| Unearned revenue | 334 | 335 |
| Accrued interest | 179 | 178 |
| Regulatory liabilities *(Note 11)* | 54 | 122 |
| Lease obligations | 14 | 14 |
| Environmental liabilities | 11 | 11 |
| Derivative liabilities *(Note 16)* | 6 | 4 |
|  | 1918 | 1779 |

---

**14.&nbsp;&nbsp;&nbsp;&nbsp;OTHER LONG-TERM LIABILITIES**

---

| | | |
|:---|:---|:---|
| **As at** *(millions of dollars)* | **June 30,<br>2025** | **December 31,<br>2024** |
| Post-retirement and post-employment benefit liability | 1592 | 1574 |
| Asset retirement obligations | 38 | 38 |
| Environmental liabilities | 34 | 36 |
| Lease obligations | 33 | 40 |
| Due to related parties | 11 | 17 |
| Derivative liabilities *(Note 16)* | 1 | 3 |
| Other long-term liabilities | 42 | 42 |
|  | 1751 | 1750 |

---

---

| | |
|:---|:---|
| 10 | ![hydroonelogo2.jpg](hydroonelogo2.jpg) |

---

------

**HYDRO ONE INC.**

**NOTES TO CONDENSED INTERIM CONSOLIDATED FINANCIAL STATEMENTS (unaudited) (continued)**

**For the three and six months ended June 30, 2025 and 2024**

**15.&nbsp;&nbsp;&nbsp;&nbsp;DEBT AND CREDIT AGREEMENTS**

**Short-Term Notes and Credit Facilities**

Hydro One meets its short-term liquidity requirements in part through the issuance of commercial paper under its commercial paper program which has a maximum authorized amount of $2,300 million. These short-term notes are denominated in Canadian dollars with varying maturities up to 365 days. The commercial paper program is supported by the Company's committed and unsecured revolving standby credit facilities totalling $3,050 million (Operating Credit Facilities). On June 1, 2025, Hydro One extended the maturity date of the Operating Credit Facilities from 2029 to 2030. As at June 30, 2025, no amounts have been drawn on the Operating Credit Facilities.

The Company may use the Operating Credit Facilities for working capital and general corporate purposes. If used, interest on the Operating Credit Facilities would apply based on Canadian benchmark rates. The Operating Credit Facilities include a pricing adjustment which can increase or decrease Hydro One's cost of borrowing based on its performance on certain sustainability performance measures, which are related to Hydro One's sustainability goals. The obligation of each lender to extend credit under its credit facility is subject to various conditions including that no event of default has occurred or would result from such credit extension.

**Long-Term Debt**

The following table presents long-term debt outstanding as at June 30, 2025 and December 31, 2024:

---

| | | |
|:---|:---|:---|
| **As at** *(millions of dollars)* | **June 30,<br>2025** | **December 31,<br>2024** |
| Hydro One long-term debt | 16320 | 17070 |
| Add: Net unamortized debt premiums | 41 | 41 |
| Add: Realized mark-to-market gain<sup>1</sup> | 1 | 3 |
| Less: Unamortized deferred debt issuance costs | (57) | (59) |
| Total long-term debt | 16305 | 17055 |
| Less: Long-term debt payable within one year | (900) | (1150) |
|  | 15405 | 15905 |

---

<sup>1</sup> In October 2023, Hydro One entered into a $400 million fixed-to-floating interest-rate swap agreement to convert the $400 million Medium-Term Note (MTN) Series 57 notes maturing October 20, 2025, into a variable rate debt. This swap was accounted for as a fair value hedge. In December 2023, this swap was terminated with a payment received of $6 million on settlement, which is being amortized over the term of the related note.

As at June 30, 2025, long-term debt of $16,320 million (December 31, 2024 - $17,070 million) was outstanding, the majority of which was issued under Hydro One's MTN Program. In February 2024, Hydro One filed a short form base shelf prospectus in connection with its MTN Program, which expires in March 2026. During the three and six months ended June 30, 2025, no long-term debt was issued (2024 - $nil and $800 million) and $350 million and $750 million long-term debt was repaid (2024 - $700 million in both periods).

**Principal and Interest Payments**

As at June 30, 2025, future principal repayments, interest payments, and related weighted-average interest rates were as follows:

---

| | | | |
|:---|:---|:---|:---|
| | **Long-Term Debt<br>Principal Repayments** | **Interest<br>Payments** | **Weighted-Average<br>Interest Rate** |
|  | *(millions of dollars)* | *(millions of dollars)* | *(%)* |
| Year 1 | 900 | 694 | 4.0 |
| Year 2 | 425 | 659 | 3.3 |
| Year 3 | 750 | 655 | 4.9 |
| Year 4 | 550 | 618 | 3.0 |
| Year 5 | 1350 | 591 | 4.4 |
|  | 3975 | 3217 | 4.1 |
| Years 6-10 | 3810 | 2459 | 4.3 |
| Thereafter | 8535 | 4367 | 4.4 |
|  | 16320 | 10043 | 4.3 |

---

---

| | |
|:---|:---|
| 11 | ![hydroonelogo2.jpg](hydroonelogo2.jpg) |

---

------

**HYDRO ONE INC.**

**NOTES TO CONDENSED INTERIM CONSOLIDATED FINANCIAL STATEMENTS (unaudited) (continued)**

**For the three and six months ended June 30, 2025 and 2024**

**16.&nbsp;&nbsp;&nbsp;&nbsp;FAIR VALUE OF FINANCIAL INSTRUMENTS AND RISK MANAGEMENT**

**Non-Derivative Financial Assets and Liabilities**

As at June 30, 2025 and December 31, 2024, the Company's carrying amounts of cash and cash equivalents, accounts receivable, due from related parties, short-term notes payable, accounts payable, and due to related parties are representative of fair value due to the short-term nature of these instruments.

**Fair Value Measurements of Long-Term Debt**

The carrying values and fair values of the Company's long-term debt as at June 30, 2025 and December 31, 2024 are as follows:

---

| | | | | |
|:---|:---|:---|:---|:---|
| | **June 30, 2025** | **June 30, 2025** | **December 31, 2024** | **December 31, 2024** |
|<br>**As at** *(millions of dollars)* | **Carrying Value** | **Fair Value** | **Carrying Value** | **Fair Value** |
| Long-term debt, including current portion | 16305 | 16160 | 17055 | 16959 |

---

**Fair Value Measurements of Derivative Instruments**

<u>Fair Value Hedges</u>

As at June 30, 2025 and December 31, 2024, Hydro One had no fair value hedges.

<u>Cash Flow Hedges</u>

As at June 30, 2025 and December 31, 2024, Hydro One had a $425 million, pay-fixed, receive-floating interest-rate swap agreement designated as a cash flow hedge. This cash flow hedge is intended to offset the variability of interest rates between December 21, 2023 and September 21, 2026.

As at June 30, 2025 and December 31, 2024, the Company had no derivative instruments classified as undesignated contracts.

**Fair Value Hierarchy**

The fair value hierarchy of financial assets and liabilities as at June 30, 2025 and December 31, 2024 is as follows:

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| **As at June 30, 2025** *(millions of dollars)* | **Carrying<br>Value** | **Fair<br> Value** | **<br>Level 1** | **<br>Level 2** | **<br>Level 3** |
| **Liabilities:** | | | | | |
| &nbsp;&nbsp; Long-term debt, including current portion | 16305 | 16160 |  | 16160 |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Derivative instruments *(Notes 13 & 14)* |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Cash flow hedges, including current portion | 7 | 7 |  | 7 |  |
|  | 16312 | 16167 |  | 16167 |  |

---

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| **As at December 31, 2024** *(millions of dollars)* | **Carrying<br>Value** | **Fair<br> Value** | **<br>Level 1** | **<br>Level 2** | **<br>Level 3** |
| **Liabilities:** | | | | | |
| &nbsp;&nbsp;Long-term debt, including current portion | 17055 | 16959 |  | 16959 |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Derivative instruments *(Notes 13 &14)* |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Cash flow hedges, including current portion | 7 | 7 |  | 7 |  |
|  | 17062 | 16966 |  | 16966 |  |

---

The fair value of the interest rate swaps designated as cash flow hedges is determined using a discounted cash flow method based on period-end swap yield curves.

The fair value of the long-term debt is based on unadjusted period-end market prices for the same or similar debt of the same remaining maturities.

There were no transfers between any of the fair value levels during the six months ended June 30, 2025 or the year ended December 31, 2024.

**Risk Management**

Exposure to market risk, credit risk and liquidity risk arises in the normal course of the Company's business.

<u>Market Risk</u>

Market risk refers primarily to the risk of loss which results from changes in values, foreign exchange rates and interest rates. The Company is exposed to fluctuations in interest rates, as its regulated return on equity is derived using a formulaic approach that takes anticipated interest rates into account. The Company is not currently exposed to material commodity price risk or material foreign exchange risk.

The Company uses a combination of fixed and variable-rate debt to manage the mix of its debt portfolio. The Company also uses derivative financial instruments to manage interest-rate risk. The Company may utilize interest-rate swaps designated as fair

---

| | |
|:---|:---|
| 12 | ![hydroonelogo2.jpg](hydroonelogo2.jpg) |

---

------

**HYDRO ONE INC.**

**NOTES TO CONDENSED INTERIM CONSOLIDATED FINANCIAL STATEMENTS (unaudited) (continued)**

**For the three and six months ended June 30, 2025 and 2024**

value hedges as a means to manage its interest rate exposure to achieve a lower cost of debt. The Company may also utilize interest-rate derivative instruments, such as cash flow hedges, to manage its exposure to short-term interest rates or to lock in interest-rate levels on forecasted financing.

A hypothetical 100 basis points increase in interest rates associated with variable-rate debt would not have resulted in a significant decrease to Hydro One's net income for the three and six months ended June 30, 2025 and 2024, respectively.

For derivative instruments that are designated and qualify as cash flow hedges, the unrealized gain or loss, after tax, on the derivative instrument is recorded as other comprehensive income (OCI) or other comprehensive loss (OCL) and is reclassified to net income or net loss in the same period during which the hedged transaction affects results of operations. The following table shows the amounts recorded in OCL and reclassified to financing charges for the three and six months ended June 30, 2025 and 2024:

---

| | | | | |
|:---|:---|:---|:---|:---|
| | **Three months ended June 30** | **Three months ended June 30** | **Six months ended June 30** | **Six months ended June 30** |
|<br>*(millions of dollars)* | **2025** | **2024** | **2025** | **2024** |
| Amounts recorded in OCL/OCI |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Before tax loss (gain) | (1) |  | 2 | (6) |
| &nbsp;&nbsp;&nbsp;&nbsp;After tax loss (gain) | (1) |  | 1 | (4) |
| Amounts reclassified to financing charges |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Before tax loss (gain) | 1 | (2) | 2 | (3) |
| &nbsp;&nbsp;&nbsp;&nbsp;After tax loss (gain) |  | (1) | 1 | (2) |

---

This resulted in an accumulated other comprehensive loss (AOCL) of $5 million related to cash flow hedges as at June 30, 2025 (December 31, 2024 - $5 million).

The Company estimates that the amount of AOCL, after tax, related to cash flow hedges to be reclassified to results of operations in the next 12 months is approximately $4 million. Actual amounts reclassified to results of operations depend on the interest rate in effect until the derivative contracts mature. For all forecasted transactions, as at June 30, 2025, the maximum term over which the Company is hedging exposures to the variability of cash flows is approximately one year.

The Pension Plan manages market risk by diversifying investments in accordance with the Pension Plan's Statement of Investment Policies and Procedures. Interest rate risk arises from the possibility that changes in interest rates will affect the fair value of the Pension Plan's financial instruments. In addition, changes in interest rates can also impact discount rates which impact the valuation of the pension and post-retirement and post-employment liabilities. Currency risk is the risk that the value of the Pension Plan's financial instruments will fluctuate due to changes in foreign currencies relative to the Canadian dollar. Other price risk is the risk that the value of the Pension Plan's investments in equity securities will fluctuate as a result of changes in market prices, other than those arising from interest risk or currency risk. All three factors may contribute to changes in values of the Pension Plan investments. See Note 17 - Pension and Post-Retirement and Post-Employment Benefits for further details.

<u>Credit Risk</u>

Financial assets create a risk that a counterparty will fail to discharge an obligation, causing a financial loss. As at June 30, 2025 and 2024, there were no significant concentrations of credit risk with respect to any class of financial assets. The Company's revenue is earned from a broad base of customers. As a result, Hydro One did not earn a material amount of revenue from any single customer. As at June 30, 2025 and 2024, there was no material accounts receivable balance due from any single customer.

As at June 30, 2025, the Company's allowance for doubtful accounts was $63 million (December 31, 2024 - $61 million). The allowance for doubtful accounts reflects the Company's current expected credit loss for all accounts receivable balances, which are based on historical overdue balances, customer payments and write-offs. As at June 30, 2025, approximately 8% (December 31, 2024 - 7%) of the Company's net accounts receivable were outstanding for more than 60 days.

Hydro One manages its counterparty credit risk through various techniques including (i) entering into transactions with highly rated counterparties, (ii) limiting total exposure levels with individual counterparties, (iii) entering into master agreements which enable net settlement and the contractual right of offset, and (iv) monitoring the financial condition of counterparties. The Company monitors current credit exposure to counterparties on both an individual and an aggregate basis. The Company's credit risk for accounts receivable is limited to the carrying amounts on the consolidated balance sheets.

Derivative financial instruments result in exposure to credit risk since there is a risk of counterparty default. The maximum credit exposure of derivative contracts, before collateral, is represented by the fair value of contracts in an asset position at the reporting date. As at June 30, 2025 and 2024, Hydro One's credit exposure for all derivative instruments and applicable payables was with one financial institution with investment grade credit ratings as counterparty.

---

| | |
|:---|:---|
| 13 | ![hydroonelogo2.jpg](hydroonelogo2.jpg) |

---

------

**HYDRO ONE INC.**

**NOTES TO CONDENSED INTERIM CONSOLIDATED FINANCIAL STATEMENTS (unaudited) (continued)**

**For the three and six months ended June 30, 2025 and 2024**

The Pension Plan manages its counterparty credit risk with respect to bonds by investing in investment-grade corporate and government bonds and with respect to derivative instruments by transacting only with highly rated financial institutions and by ensuring that exposure is diversified across counterparties.

<u>Liquidity Risk</u>

Liquidity risk refers to the Company's ability to meet its financial obligations as they come due. Hydro One meets its short-term operating liquidity requirements using cash and cash equivalents on hand, funds from operations, the issuance of commercial paper, and the Operating Credit Facilities. The short-term liquidity under the commercial paper program, the Operating Credit Facilities, and anticipated levels of funds from operations are expected to be sufficient to fund the Company's operating requirements.

In February 2024, Hydro One filed a short form base shelf prospectus in connection with its MTN Program, which expires in March 2026. Hydro One's Universal Base Shelf Prospectus allows it to offer, from time to time in one or more public offerings, debt, equity or other securities, or any combination thereof, during the 25-month period ending on September 19, 2026.

The Pension Plan's short-term liquidity is provided through cash and cash equivalents, contributions, investment income and proceeds from investment transactions. In the event that investments must be sold quickly to meet current obligations, the majority of the Pension Plan's assets are invested in securities that are traded in an active market and can be readily disposed of as liquidity needs arise.

**17.&nbsp;&nbsp;&nbsp;&nbsp;PENSION AND POST-RETIREMENT AND POST-EMPLOYMENT BENEFITS**

The following table provides the components of the net periodic benefit (recovery) costs for the three and six months ended June 30, 2025 and 2024:

---

| | | | | |
|:---|:---|:---|:---|:---|
| | **<br>Pension Benefits** | **<br>Pension Benefits** | **Post-Retirement and<br>Post-Employment Benefits** | **Post-Retirement and<br>Post-Employment Benefits** |
|<br>**Three months ended June 30** *(millions of dollars)* | **2025** | **2024** | **2025** | **2024** |
| Current service cost | 37 | 34 | 15 | 14 |
| Interest cost | 103 | 100 | 20 | 19 |
| Expected return on plan assets, net of expenses<sup>1</sup> | (166) | (151) |  |  |
| Amortization of prior service (credit) cost | (1) | (1) | 2 | 2 |
| Amortization of actuarial losses (gains) | (4) | 4 | (4) | (5) |
| Net periodic benefit (recovery) costs | (31) | (14) | 33 | 30 |
| Charged to results of operations<sup>2</sup> | 4 | 5 | 24 | 22 |

---

---

| | | | | |
|:---|:---|:---|:---|:---|
| | **Pension Benefits** | **Pension Benefits** | **Post-Retirement and Post-Employment Benefits** | **Post-Retirement and Post-Employment Benefits** |
|<br>**Six months ended June 30** *(millions of dollars)* | **2025** | **2024** | **2025** | **2024** |
| Current service cost | 74 | 68 | 30 | 28 |
| Interest cost | 206 | 200 | 39 | 37 |
| Expected return on plan assets, net of expenses<sup>1</sup> | (332) | (302) |  |  |
| Amortization of prior service (credit) cost | (2) | (2) | 4 | 4 |
| Amortization of actuarial losses (gains) | (8) | 8 | (8) | (10) |
| Net periodic benefit (recovery) costs | (62) | (28) | 65 | 59 |
| Charged to results of operations<sup>2</sup> | 10 | 11 | 46 | 42 |

---

<sup>1&nbsp;&nbsp;&nbsp;&nbsp;</sup>The expected long-term rate of return on pension plan assets for the year ending December 31, 2025 is 7.20% (2024 - 7.00%).

<sup>2</sup>&nbsp;&nbsp;&nbsp;&nbsp;The Company accounts for pension costs consistent with their inclusion in OEB-approved rates. During the three and six months ended June 30, 2025, pension costs of $15 million (2024 - $16 million) and $35 million (2024 - $34 million), respectively, were attributed to labour, of which $4 million (2024 - $5 million) and $10 million (2024 - $11 million), respectively was charged to operations, and $11 million (2024 - $11 million) and $25 million (2024 - $23 million), respectively, was capitalized as part of the cost of property, plant and equipment and intangible assets.

---

| | |
|:---|:---|
| 14 | ![hydroonelogo2.jpg](hydroonelogo2.jpg) |

---

------

**HYDRO ONE INC.**

**NOTES TO CONDENSED INTERIM CONSOLIDATED FINANCIAL STATEMENTS (unaudited) (continued)**

**For the three and six months ended June 30, 2025 and 2024**

**18.&nbsp;&nbsp;&nbsp;&nbsp;SHARE CAPITAL**

**Common Shares**

The Company is authorized to issue an unlimited number of common shares. As at June 30, 2025 and December 31, 2024, the Company had 142,239 common shares issued and outstanding.

**Preferred Shares**

The Company is authorized to issue an unlimited number of preferred shares, issuable in series. As at June 30, 2025 and December 31, 2024, the Company had no preferred shares issued and outstanding.

**19. &nbsp;&nbsp;&nbsp;&nbsp;DIVIDENDS**

During the three months ended June 30, 2025, common share dividends in the amount of $207 million (2024 - $187 million) were declared and paid.

During the six months ended June 30, 2025, common share dividends in the amount of $394 million (2024 - $363 million) were declared and paid. See Note 27 - Subsequent Events for dividends declared subsequent to June 30, 2025.

**20.&nbsp;&nbsp;&nbsp;&nbsp;EARNINGS PER COMMON SHARE**

Basic earnings per common share (EPS) is calculated by dividing net income attributable to the common shareholder of Hydro One by the weighted-average number of common shares outstanding. The weighted-average number of common shares outstanding during the three and six months ended June 30, 2025 and 2024 were 142,239. There were no dilutive securities during the three and six months ended June 30, 2025 and 2024.

**21.&nbsp;&nbsp;&nbsp;&nbsp;STOCK-BASED COMPENSATION**

**Share Grant Plans**

Hydro One has two share grant plans (Share Grant Plans), one for the benefit of certain members of the Power Workers' Union (the PWU Share Grant Plan) and one for the benefit of certain members of the Society of United Professionals (the Society Share Grant Plan). A summary of share grant activity under the Share Grant Plans during the three and six months ended June 30, 2025 and 2024 is presented below:

---

| | | | | |
|:---|:---|:---|:---|:---|
| | **Three months ended June 30** | **Three months ended June 30** | **Six months ended June 30** | **Six months ended June 30** |
|<br>*(number of share grants)* | **2025** | **2024** | **2025** | **2024** |
| Share grants outstanding - beginning | 1381577 | 1751025 | 1381577 | 1751025 |
| Granted | 114 |  | 114 |  |
| Vested and issued<sup>1</sup> | (330302) | (342556) | (330302) | (342556) |
| Share grants outstanding - ending | 1051389 | 1408469 | 1051389 | 1408469 |

---

<sup>1</sup> During the three and six months ended June 30, 2025, Hydro One Limited issued 330,302 (2024 - 342,556) common shares from treasury to eligible employees in accordance with provisions of the PWU and the Society Share Grant Plans.

**Directors' Deferred Share Unit (DSU) Plan**

A summary of DSU awards activity under the Hydro One Limited Directors' DSU Plan during the three and six months ended June 30, 2025 and 2024 is presented below:

---

| | | | | |
|:---|:---|:---|:---|:---|
| | **Three months ended June 30** | **Three months ended June 30** | **Six months ended June 30** | **Six months ended June 30** |
|<br>*(number of DSUs)* | **2025** | **2024** | **2025** | **2024** |
| DSUs outstanding - beginning | 113198 | 100087 | 107296 | 94624 |
| &nbsp;&nbsp;&nbsp;&nbsp;Granted | 5315 | 6102 | 11217 | 11565 |
| &nbsp;&nbsp;&nbsp;&nbsp;Settled | (15977) |  | (15977) |  |
| DSUs outstanding - ending | 102536 | 106189 | 102536 | 106189 |

---

As at June 30, 2025, a liability of $5 million (December 31, 2024 - $5 million) related to Directors' DSUs has been recorded at the closing price of Hydro One Limited's common shares of $49.07 (December 31, 2024 - $44.27). This liability is included in other long-term liabilities on the consolidated balance sheets.

---

| | |
|:---|:---|
| 15 | ![hydroonelogo2.jpg](hydroonelogo2.jpg) |

---

------

**HYDRO ONE INC.**

**NOTES TO CONDENSED INTERIM CONSOLIDATED FINANCIAL STATEMENTS (unaudited) (continued)**

**For the three and six months ended June 30, 2025 and 2024**

**Management DSU Plan**

A summary of DSU awards activity under the Hydro One Limited Management DSU Plan during the three and six months ended June 30, 2025 and 2024 is presented below:

---

| | | | | |
|:---|:---|:---|:---|:---|
| | **Three months ended June 30** | **Three months ended June 30** | **Six months ended June 30** | **Six months ended June 30** |
|<br>*(number of DSUs)* | **2025** | **2024** | **2025** | **2024** |
| DSUs outstanding - beginning | 98261 | 148632 | 85690 | 134370 |
| &nbsp;&nbsp;&nbsp;&nbsp;Granted | 589 | 1168 | 13160 | 15430 |
| &nbsp;&nbsp;&nbsp;&nbsp; Paid | (11425) | (313) | (11425) | (313) |
| DSUs outstanding - ending | 87425 | 149487 | 87425 | 149487 |

---

As at June 30, 2025, a liability of $4 million (December 31, 2024 - $4 million) related to Management DSUs has been recorded at the closing price of Hydro One Limited's common shares of $49.07 (December 31, 2024 - $44.27). This liability is included in other long-term liabilities on the consolidated balance sheets.

**Long-term Incentive Plan (LTIP)**

<u>Performance Share Units (PSU) and Restricted Share Units (RSU)</u>

A summary of PSU and RSU awards activity under the Hydro One Limited LTIP during the three and six months ended June 30, 2025 and 2024 is presented below:

---

| | | | | |
|:---|:---|:---|:---|:---|
| | **PSUs** | **PSUs** | **RSUs** | **RSUs** |
|<br>**Three months ended June 30** *(number of units)* | **2025** | **2024** | **2025** | **2024** |
| Units outstanding - beginning | 424498 | 297939 | 419122 | 313819 |
| &nbsp;&nbsp;&nbsp;&nbsp;Granted | 2937 | 13222 | 6596 | 2308 |
| &nbsp;&nbsp;&nbsp;&nbsp;Forfeited | (10174) | (21595) | (15290) | (11097) |
| &nbsp;&nbsp;&nbsp;&nbsp;Vested |  | (19921) | (5051) | (251) |
| Units outstanding - ending | 417261 | 269645 | 405377 | 304779 |

---

---

| | | | | |
|:---|:---|:---|:---|:---|
| | **PSUs** | **PSUs** | **RSUs** | **RSUs** |
|<br>**Six months ended June 30** *(number of units)* | **2025** | **2024** | **2025** | **2024** |
| Units outstanding - beginning | 283106 | 141188 | 304393 | 176989 |
| &nbsp;&nbsp;&nbsp;&nbsp;Granted | 168719 | 171171 | 133304 | 142487 |
| &nbsp;&nbsp;&nbsp;&nbsp;Forfeited | (27380) | (22793) | (24200) | (14446) |
| &nbsp;&nbsp;&nbsp;&nbsp;Vested | (7184) | (19921) | (8120) | (251) |
| Units outstanding - ending | 417261 | 269645 | 405377 | 304779 |

---

The total grant date fair value of the awards granted during the three and six months ended June 30, 2025 was $1 million and $14 million, respectively (2024 – $1 million and $13 million, respectively). The compensation expense related to these awards during the three and six months ended June 30, 2025 was $5 million and $8 million, respectively (2024 – $3 million and $4 million, respectively).

---

| | |
|:---|:---|
| 16 | ![hydroonelogo2.jpg](hydroonelogo2.jpg) |

---

------

**HYDRO ONE INC.**

**NOTES TO CONDENSED INTERIM CONSOLIDATED FINANCIAL STATEMENTS (unaudited) (continued)**

**For the three and six months ended June 30, 2025 and 2024**

**22.&nbsp;&nbsp;&nbsp;&nbsp;RELATED PARTY TRANSACTIONS**

Hydro One is owned by Hydro One Limited. The Province is a shareholder of Hydro One Limited with approximately 47.1% (2024 - 47.1%) ownership as at June 30, 2025. The Ministry of Infrastructure (MOI) is a related party to Hydro One because it is controlled by the Province. The Independent Electricity System Operator (IESO), Ontario Power Generation Inc. (OPG), Ontario Electricity Financial Corporation (OEFC), the OEB and Acronym Solutions Inc. (Acronym) are related parties to Hydro One because they are controlled or significantly influenced by the Ministry of Energy and Mines or by Hydro One Limited. Hydro One also has transactions in the normal course of business with various government ministries and organizations in Ontario that fall under the purview of the Province. The following is a summary of the Company's related party transactions during the three and six months ended June 30, 2025 and 2024:

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| *(millions of dollars)* | *(millions of dollars)* | **Three months ended June 30** | **Three months ended June 30** | **Six months ended June 30** | **Six months ended June 30** |
| **Related Party** | **Transaction** | **2025** | **2024** | **2025** | **2024** |
| **MOI** | Broadband subsidy<sup>1</sup> | 6 |  | 19 |  |
| **IESO** | Power purchased | 456 | 482 | 1374 | 1301 |
| **IESO** | Revenues for transmission services | 613 | 579 | 1234 | 1129 |
| **IESO** | Amounts related to electricity rebates | 233 | 280 | 508 | 607 |
| **IESO** | Distribution revenues related to rural rate protection | 64 | 63 | 127 | 126 |
| **IESO** | Distribution revenues related to Wataynikaneyap Power LP | 33 | 30 | 66 | 60 |
| **IESO** | Distribution revenues related to supply of electricity to remote northern communities | 13 | 12 | 25 | 24 |
| **IESO** | Funding received related to Conservation and Demand Management programs |  | 1 |  | 1 |
| **OPG** | Power purchased | 3 | 5 | 14 | 11 |
| **OPG** | Transmission revenues related to provision of services and supply of electricity |  |  | 1 | 1 |
| **OPG** | Distribution revenues related to provision of services and supply of electricity | 1 | 2 | 4 | 3 |
| **OPG** | Capital contribution received from OPG | 6 |  | 16 | 1 |
| **OPG** | Costs related to the purchase of services | 1 |  | 1 |  |
| **OEFC** | Power purchased from power contracts administered by the OEFC |  | 1 | 1 | 1 |
| **OEB** | OEB fees | 3 | 3 | 6 | 6 |
| **Hydro One Limited** | Dividends paid | 207 | 187 | 394 | 363 |
| **Hydro One Limited** | Cost recovery for services provided | 3 | 3 | 6 | 6 |
| **Hydro One Limited** | Stock-based compensation costs | 2 | 2 | 3 | 3 |
| **Acronym** | Services received – costs incurred | 7 | 8 | 14 | 16 |
| **Acronym** | Revenues for services provided | 1 | 1 | 1 | 1 |

---

<sup>1</sup> On October 31, 2024, the Ministry of Infrastructure announced that it has developed a program to deliver up to $400 million in subsidies to internet service providers (ISPs) for work associated with designated broadband projects. The program is intended to enable ISPs to successfully and safely attach their material and equipment to the Company's poles to bring connectivity to rural communities as part of a designated broadband project as defined under *Building Broadband Faster Act (Ontario)*. A portion of these subsidies is used to reimburse Hydro One Networks on behalf of ISPs for their share of enablement costs incurred to facilitate the program to date.

Sales to and purchases from related parties are based on the requirements of the OEB's Affiliate Relationships Code. Outstanding balances as at period end from external related parties are interest-free and settled in cash. Invoices are issued monthly, and amounts are due and paid on a monthly basis.

---

| | |
|:---|:---|
| 17 | ![hydroonelogo2.jpg](hydroonelogo2.jpg) |

---

------

**HYDRO ONE INC.**

**NOTES TO CONDENSED INTERIM CONSOLIDATED FINANCIAL STATEMENTS (unaudited) (continued)**

**For the three and six months ended June 30, 2025 and 2024**

**23.&nbsp;&nbsp;&nbsp;&nbsp;CONSOLIDATED STATEMENTS OF CASH FLOWS**

The changes in non-cash balances related to operations consist of the following:

---

| | | | | |
|:---|:---|:---|:---|:---|
| | **Three months ended June 30** | **Three months ended June 30** | **Six months ended June 30** | **Six months ended June 30** |
|<br>*(millions of dollars)* | **2025** | **2024** | **2025** | **2024** |
| Accounts receivable *(Note 7)* | 24 | 77 | (66) | 33 |
| Due from related parties | (41) | (33) | (63) | (62) |
| Materials and supplies *(Note 8)* | (1) | 1 | (1) | 3 |
| Prepaid expenses and other assets | 3 | (22) | (2) | (36) |
| Other long-term assets | (7) | 1 | (15) |  |
| Accounts payable | 28 | 103 | 11 | 34 |
| Accrued liabilities | 48 | 73 | 103 | 101 |
| Unearned revenue *(Note 13)* | 29 | 52 | (1) | 72 |
| Due to related parties | (102) | 59 | (188) | (31) |
| Accrued interest *(Note 13)* | 1 | (16) | 1 | 6 |
| Long-term accounts payable and other long-term liabilities *(Note 14)* | (1) | 1 |  | (1) |
| Post-retirement and post-employment benefit liability | 8 | 15 | 29 | 34 |
|  | (11) | 311 | (192) | 153 |

---

**Capital Expenditures** 

The following tables reconcile investments in property, plant and equipment and intangible assets and the amounts presented in the consolidated statements of cash flows for the three and six months ended June 30, 2025 and 2024. The reconciling items include net change in accruals, transfers, and capitalized depreciation.

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| | **Three months ended June 30, 2025** | **Three months ended June 30, 2025** | **Three months ended June 30, 2025** | **Six months ended June 30, 2025** | **Six months ended June 30, 2025** | **Six months ended June 30, 2025** |
|<br>*(millions of dollars)* | **Property, Plant and Equipment** | **<br>Intangible Assets** | **<br>Total** | **Property, Plant and Equipment** | **<br>Intangible Assets** | **<br>Total** |
| Capital investments | (901) | (9) | (910) | (1615) | (26) | (1641) |
| Reconciling items | 118 | 1 | 119 | 214 | (3) | 211 |
| Cash outflow for capital expenditures | (783) | (8) | (791) | (1401) | (29) | (1430) |

---

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| | **Three months ended June 30, 2024** | **Three months ended June 30, 2024** | **Three months ended June 30, 2024** | **Six months ended June 30, 2024** | **Six months ended June 30, 2024** | **Six months ended June 30, 2024** |
|<br>*(millions of dollars)* | **Property, Plant and Equipment** | **<br>Intangible Assets** | **<br>Total** | **Property, Plant and Equipment** | **<br>Intangible Assets** | **<br>Total** |
| Capital investments | (790) | (26) | (816) | (1436) | (50) | (1486) |
| Reconciling items | 82 |  | 82 | 86 | 2 | 88 |
| Cash outflow for capital expenditures | (708) | (26) | (734) | (1350) | (48) | (1398) |

---

**Supplementary Information**

---

| | | | | |
|:---|:---|:---|:---|:---|
| | **Three months ended June 30** | **Three months ended June 30** | **Six months ended June 30** | **Six months ended June 30** |
|<br>*(millions of dollars)* | **2025** | **2024** | **2025** | **2024** |
| Net interest paid | 181 | 170 | 355 | 299 |
| Income taxes paid | 10 | 8 | 22 | 24 |

---

**24.&nbsp;&nbsp;&nbsp;&nbsp;CONTINGENCIES**

Hydro One is involved in various lawsuits and claims in the normal course of business. In the opinion of management, the outcome of such matters will not have a material adverse effect on the Company's consolidated financial position, results of operations or cash flows.

**25. &nbsp;&nbsp;&nbsp;&nbsp;COMMITMENTS**

The following table presents a summary of Hydro One's commitments under outsourcing and other agreements due in the next five years and thereafter:

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| **As at June 30, 2025** *(millions of dollars)* | **Year 1** | **Year 2** | **Year 3** | **Year 4** | **Year 5** | **Thereafter** |
| Outsourcing and other agreements | 66 | 22 | 9 | 3 | 3 | 12 |
| Long-term software/meter agreement | 6 | 2 | 2 | 2 | 2 |  |

---

---

| | |
|:---|:---|
| 18 | ![hydroonelogo2.jpg](hydroonelogo2.jpg) |

---

------

**HYDRO ONE INC.**

**NOTES TO CONDENSED INTERIM CONSOLIDATED FINANCIAL STATEMENTS (unaudited) (continued)**

**For the three and six months ended June 30, 2025 and 2024**

The following table presents a summary of Hydro One's other commercial commitments by year of expiry in the next five years and thereafter:

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| **As at June 30, 2025** *(millions of dollars)* | **Year 1** | **Year 2** | **Year 3** | **Year 4** | **Year 5** | **Thereafter** |
| Operating Credit Facilities<sup>1</sup> |  |  |  |  | 3050 |  |
| Letters of credit<sup>2</sup> | 163 |  |  |  |  |  |
| Guarantees<sup>3</sup> | 475 |  |  |  |  |  |

---

<sup>1</sup> On June 1, 2025, the maturity date for the Operating Credit Facilities was extended to June 1, 2030. 

<sup>2</sup> Letters of credit consist of $153 million letters of credit related to retirement compensation arrangements, a $3 million letter of credit provided to the IESO for prudential support, and $7 million in letters of credit for various operating purposes.

<sup>3</sup> Guarantees consist of $475 million prudential support provided to the IESO by Hydro One on behalf of its subsidiaries.

**26.&nbsp;&nbsp;&nbsp;&nbsp;SEGMENTED REPORTING**

The Company has three reportable segments: Transmission, Distribution, and Other. The composition of these segments is described in Note 1 to the consolidated financial statements.

The designation of segments has been based on a combination of regulatory status and the nature of the services provided. Operating segments of the Company are determined based on information used by the Chief Operating Decision Maker (CODM) in deciding how to allocate resources and evaluate the performance of each of the segments. Hydro One's CODM consists of its Chief Executive Officer and certain members of the executive leadership team. The CODM evaluates segment performance based on income before financing charges and income tax expense from continuing operations (excluding certain allocated corporate governance costs) (EBIT). The CODM considers the key components of EBIT to understand the variances to prior period on a quarterly basis and measures them against the Company's budget and forecast across each of the three segments on a monthly basis in order to properly allocate resources between and within the operating segments.

---

| | | | | |
|:---|:---|:---|:---|:---|
| **Three months ended June 30, 2025** *(millions of dollars)* | **Transmission** | **Distribution** | **Other** | **Consolidated** |
| Revenues | 622 | 1434 |  | 2056 |
| Purchased power |  | 899 |  | 899 |
| Operation, maintenance and administration | 134 | 164 | 9 | 307 |
| Depreciation, amortization and asset removal costs | 139 | 146 |  | 285 |
| **Income (loss) before financing charges and income tax expense** | 349 | 225 | (9) | 565 |
| **Capital investments** | 490 | 420 |  | 910 |

---

---

| | | | | |
|:---|:---|:---|:---|:---|
| **Three months ended June 30, 2024** *(millions of dollars)* | **Transmission** | **Distribution** | **Other** | **Consolidated** |
| Revenues | 583 | 1436 |  | 2019 |
| Purchased power |  | 940 |  | 940 |
| Operation, maintenance and administration | 118 | 182 | 8 | 308 |
| Depreciation, amortization and asset removal costs | 134 | 126 |  | 260 |
| **Income (loss) before financing charges and income tax expense** | 331 | 188 | (8) | 511 |
| **Capital investments** | 502 | 314 |  | 816 |

---

---

| | | | | |
|:---|:---|:---|:---|:---|
| **Six months ended June 30, 2025** *(millions of dollars)* | **Transmission** | **Distribution** | **Other** | **Consolidated** |
| Revenues | 1258 | 3195 |  | 4453 |
| Purchased power |  | 2119 |  | 2119 |
| Operation, maintenance and administration | 267 | 346 | 14 | 627 |
| Depreciation, amortization and asset removal costs | 278 | 268 |  | 546 |
| **Income (loss) before financing charges and income tax expense** | 713 | 462 | (14) | 1161 |
| **Capital investments** | 949 | 692 |  | 1641 |

---

---

| | |
|:---|:---|
| 19 | ![hydroonelogo2.jpg](hydroonelogo2.jpg) |

---

------

**HYDRO ONE INC.**

**NOTES TO CONDENSED INTERIM CONSOLIDATED FINANCIAL STATEMENTS (unaudited) (continued)**

**For the three and six months ended June 30, 2025 and 2024**

---

| | | | | |
|:---|:---|:---|:---|:---|
| **Six months ended June 30, 2024** *(millions of dollars)* | **Transmission** | **Distribution** | **Other** | **Consolidated** |
| Revenues | 1136 | 3041 |  | 4177 |
| Purchased power |  | 2036 |  | 2036 |
| Operation, maintenance and administration | 243 | 365 | 12 | 620 |
| Depreciation, amortization and asset removal costs | 267 | 244 |  | 511 |
| **Income (loss) before financing charges and income tax expense** | 626 | 396 | (12) | 1010 |
| **Capital investments** | 923 | 563 |  | 1486 |

---

**Total Assets by Segment:**

---

| | | |
|:---|:---|:---|
| **As at** *(millions of dollars)* | **June 30,<br>2025** | **December 31,<br>2024** |
| Transmission | 22795 | 21586 |
| Distribution | 14571 | 14019 |
| Other | 357 | 993 |
| **Total assets** | 37723 | 36598 |

---

**Total Goodwill by Segment:**

---

| | | |
|:---|:---|:---|
| **As at** *(millions of dollars)* | **June 30,<br>2025** | **December 31,<br>2024** |
| Transmission | 157 | 157 |
| Distribution | 216 | 216 |
| **Total goodwill** | 373 | 373 |

---

All revenues, assets and costs are earned, held or incurred in Canada.

**27. &nbsp;&nbsp;&nbsp;&nbsp;SUBSEQUENT EVENTS** 

**Dividends**

On August 12, 2025, common share dividends of $199 million were declared.

---

| | |
|:---|:---|
| 20 | ![hydroonelogo2.jpg](hydroonelogo2.jpg) |

---

## Exhibit 99.2

**HYDRO ONE INC.**

**MANAGEMENT'S DISCUSSION AND ANALYSIS** 

**For the three and six months ended June 30, 2025 and 2024**

The following Management's Discussion and Analysis (MD&A) of the financial condition and results of operations should be read together with the unaudited condensed interim consolidated financial statements and accompanying notes thereto (Consolidated Financial Statements) of Hydro One Inc. (Hydro One or the Company) for the three and six months ended June 30, 2025, as well as the Company's audited consolidated financial statements and MD&A for the year ended December 31, 2024. The Consolidated Financial Statements have been prepared in accordance with United States (U.S.) generally accepted accounting principles (GAAP). All financial information in this MD&A is presented in Canadian dollars, unless otherwise indicated.

The Company has prepared this MD&A in accordance with National Instrument 51-102 - Continuous Disclosure Obligations of the Canadian Securities Administrators. Under the U.S./ Canada Multijurisdictional Disclosure System, the Company is permitted to prepare this MD&A in accordance with the disclosure requirements of Canadian securities laws and regulations, which can vary from those of the U.S. This MD&A provides information as at and for the three and six months ended June 30, 2025, based on information available to management as of August 12, 2025.

**CONSOLIDATED FINANCIAL HIGHLIGHTS AND STATISTICS** 

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| | **Three months ended June 30** | **Three months ended June 30** | **Three months ended June 30** | **Six months ended June 30** | **Six months ended June 30** | **Six months ended June 30** |
|<br>*(millions of dollars, except as otherwise noted)* | **2025** | **2024** | **Change** | **2025** | **2024** | **Change** |
| Revenues | 2056 | 2019 | 1.8% | 4453 | 4177 | 6.6% |
| Purchased power | 899 | 940 | (4.4%) | 2119 | 2036 | 4.1% |
| Revenues, net of purchased power<sup>1</sup> | 1157 | 1079 | 7.2% | 2334 | 2141 | 9.0% |
| Operation, maintenance and administration (OM&A) costs | 307 | 308 | (0.3%) | 627 | 620 | 1.1% |
| Depreciation, amortization and asset removal costs | 285 | 260 | 9.6% | 546 | 511 | 6.8% |
| Financing charges | 165 | 155 | 6.5% | 327 | 302 | 8.3% |
| Income tax expense | 64 | 57 | 12.3% | 133 | 110 | 20.9% |
| **Net income attributable to the common shareholder of Hydro One** | **334** | **296** | **12.8%** | **696** | **593** | **17.4%** |
| Basic and diluted earnings per common share (EPS) | $2348 | $2081 | 12.8% | $4893 | $4169 | 17.4% |
| Net cash from operating activities | 611 | 830 | (26.4%) | 1114 | 1281 | (13.0%) |
| Funds from operations (FFO)<sup>1</sup> | 620 | 517 | 19.9% | 1299 | 1122 | 15.8% |
| Annualized FFO to Net Debt<sup>1</sup> | 13.9% | 13.9% | —% | 13.9% | 13.9% | —% |
| Capital investments | 910 | 816 | 11.5% | 1641 | 1486 | 10.4% |
| Assets placed in-service | 586 | 523 | 12.0% | 1003 | 759 | 32.1% |
| Transmission: Average monthly Ontario 60-minute peak demand *(MW)* | 20836 | 20749 | 0.4% | 21008 | 20274 | 3.6% |
| Distribution: Electricity distributed to Hydro One customers *(GWh)* | 7231 | 6970 | 3.7% | 16555 | 15583 | 6.2% |

---

---

| | | |
|:---|:---|:---|
| **<br>As at** | **June 30, 2025** | **December 31, 2024** |
| Net Debt to capitalization ratio<sup>1</sup> | 58.1% | 57.2% |

---

<sup>1&nbsp;&nbsp;&nbsp;&nbsp;</sup> See section "Non-GAAP Financial Measures".

**OVERVIEW**

The Company's transmission business consists of the electricity transmission system operated by its subsidiaries, which include Hydro One Networks Inc. (Hydro One Networks), Hydro One Sault Ste. Marie LP, an approximate 90% interest in Chatham x Lakeshore Limited Partnership (CLLP), an approximate 66% interest in B2M Limited Partnership (B2M LP) and an approximate 55% interest in Niagara Reinforcement Limited Partnership (NRLP). The Company's approximately 90% interest in CLLP was reduced to approximately 80% in July 2025. The Transmission segment also includes Hydro One Networks' approximate 48% minority interest in the East-West Tie Limited Partnership (EWT LP) (see section "Other Developments - EWT LP").

Hydro One's distribution business consists of the electricity distribution system operated by its subsidiaries, Hydro One Networks and Hydro One Remote Communities Inc. (Hydro One Remotes).

The other segment consists of certain corporate activities and is not rate-regulated.

---

| | |
|:---|:---|
| 1 | ![hydroonelogo3a.jpg](hydroonelogo3a.jpg) |

---

------

**HYDRO ONE INC.**

**MANAGEMENT'S DISCUSSION AND ANALYSIS (continued)**

**For the three and six months ended June 30, 2025 and 2024**

For the six months ended June 30, 2025 and 2024, Hydro One's segments accounted for the Company's total revenues, as follows:

---

| | | |
|:---|:---|:---|
| **Six months ended June 30** | **2025** | **2024** |
| Transmission | 28% | 27% |
| Distribution | 72% | 73% |

---

When adjusted for the recovery of purchased power costs, Hydro One's segments accounted for the Company's total revenues, net of purchased power,<sup>1</sup> for the six months ended June 30, 2025 and 2024 as follows:

---

| | | |
|:---|:---|:---|
| **Six months ended June 30** | **2025** | **2024** |
| Transmission | 54% | 53% |
| Distribution | 46% | 47% |

---

As at June 30, 2025 and December 31, 2024, Hydro One's segments accounted for the Company's total assets as follows:

---

| | | |
|:---|:---|:---|
| **As at** | **June 30,<br>2025** | **December 31,<br>2024** |
| Transmission | 60% | 59% |
| Distribution | 39% | 38% |
| Other | 1% | 3% |

---

**RESULTS OF OPERATIONS**

**Net Income**

Net income attributable to the common shareholder for the quarter ended June 30, 2025 of $334 million is an increase of $38 million, or 12.8%, compared to the same period in 2024. Significant influences on the change in net income attributable to the common shareholder include:

&nbsp;&nbsp;&nbsp;&nbsp;• higher revenues, net of purchased power,<sup>1</sup> primarily resulting from an increase in transmission and distribution revenues due to Ontario Energy Board (OEB)-approved 2025 rates and higher energy consumption.

&nbsp;&nbsp;&nbsp;&nbsp;• lower OM&A, when excluding net income neutral items, primarily resulting from lower work program expenditures, including lower vegetation management expenditures, partially offset by lower insurance proceeds received in the period compared to the prior year and higher asset write-offs.

&nbsp;&nbsp;&nbsp;&nbsp;• higher depreciation, amortization and asset removal costs primarily due to higher asset removal costs resulting from storm restoration efforts, and higher depreciation due to the growth in capital assets, partially offset by lower amortization of regulatory assets.

&nbsp;&nbsp;&nbsp;&nbsp;• higher financing charges attributable to an increase in long-term debt outstanding, partially offset by higher capitalized interest.

&nbsp;&nbsp;&nbsp;&nbsp;• higher income tax expense primarily resulting from higher pre-tax earnings, partially offset by higher deductible timing differences.

Net income attributable to the common shareholder for the six months ended June 30, 2025 of $696 million is $103 million, or 17.4%, higher than the same period in 2024. Year-to-date results were impacted by similar factors as noted above as well as higher average monthly peak demand in the first quarter of the year. Higher OM&A on a year-to-date basis was also impacted by higher information technology-related expenditures in the first quarter of the year.

**Revenues** 

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| | **Three months ended June 30** | **Three months ended June 30** | **Three months ended June 30** | **Six months ended June 30** | **Six months ended June 30** | **Six months ended June 30** |
|<br>*(millions of dollars, except as otherwise noted)* | **2025** | **2024** | **Change** | **2025** | **2024** | **Change** |
| Transmission | 622 | 583 | 6.7% | 1258 | 1136 | 10.7% |
| Distribution | 1434 | 1436 | (0.1%) | 3195 | 3041 | 5.1% |
| Total revenues | 2056 | 2019 | 1.8% | 4453 | 4177 | 6.6% |
| Transmission | 622 | 583 | 6.7% | 1258 | 1136 | 10.7% |
| Distribution revenues, net of purchased power<sup>1</sup> | 535 | 496 | 7.9% | 1076 | 1005 | 7.1% |
| Total revenues, net of purchased power<sup>1</sup> | 1157 | 1079 | 7.2% | 2334 | 2141 | 9.0% |
| Transmission: Average monthly Ontario 60-minute peak demand *(MW)* | 20836 | 20749 | 0.4% | 21008 | 20274 | 3.6% |
| Distribution: Electricity distributed to Hydro One customers *(GWh)* | 7231 | 6970 | 3.7% | 16555 | 15583 | 6.2% |

---

<sup>1</sup> See section "Non-GAAP Financial Measures".

<sup>1</sup> See section "Non-GAAP Financial Measures".

---

| | |
|:---|:---|
| 2 | ![hydroonelogo3a.jpg](hydroonelogo3a.jpg) |

---

------

**HYDRO ONE INC.**

**MANAGEMENT'S DISCUSSION AND ANALYSIS (continued)**

**For the three and six months ended June 30, 2025 and 2024**

<u>Transmission Revenues</u>

Transmission revenues increased by 6.7% compared to the quarter ended June 30, 2024, primarily due to:

&nbsp;&nbsp;&nbsp;&nbsp;• higher revenues resulting from OEB-approved 2025 rates; and

&nbsp;&nbsp;&nbsp;&nbsp;• CLLP revenues following the in servicing of the transmission line in the fourth quarter of 2024 and equity income associated with Hydro One's investment in EWT LP.

Transmission revenues increased by 10.7% compared to the six months ended June 30, 2024, primarily due to similar factors noted above as well as higher average monthly peak demand in the first quarter of the year.

<u>Distribution Revenues</u>

Distribution revenues decreased by 0.1% compared to the quarter ended June 30, 2024, primarily due to:

&nbsp;&nbsp;&nbsp;&nbsp;• lower purchased power costs, which are fully recovered from ratepayers and thus net income neutral; partially offset by

&nbsp;&nbsp;&nbsp;&nbsp;• higher revenues resulting from OEB-approved 2025 rates;

&nbsp;&nbsp;&nbsp;&nbsp;• higher energy consumption; and

&nbsp;&nbsp;&nbsp;&nbsp;• higher external revenues related to the recovery of storm-related costs incurred on behalf of third parties, which are offset by a corresponding increase to OM&A and therefore net income neutral.

Distribution revenues increased by 5.1% compared to the six months ended June 30, 2024, primarily due to:

&nbsp;&nbsp;&nbsp;&nbsp;• higher purchased power costs, which are fully recovered from ratepayers and thus net income neutral;

&nbsp;&nbsp;&nbsp;&nbsp;• higher revenues resulting from OEB-approved 2025 rates;

&nbsp;&nbsp;&nbsp;&nbsp;• higher energy consumption; and

&nbsp;&nbsp;&nbsp;&nbsp;• higher external revenues related to the recovery of storm-related costs incurred on behalf of third parties, which are offset by a corresponding increase to OM&A and therefore net income neutral.

Distribution revenues, net of purchased power,<sup>2</sup> increased by 7.9% and 7.1% compared to the three and six months ended June 30, 2024, primarily due to the reasons noted above.

**OM&A Costs** 

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| | **Three months ended June 30** | **Three months ended June 30** | **Three months ended June 30** | **Six months ended June 30** | **Six months ended June 30** | **Six months ended June 30** |
|<br>*(millions of dollars, except as otherwise noted)* | **2025** | **2024** | **Change** | **2025** | **2024** | **Change** |
| Transmission | 134 | 118 | 13.6% | 267 | 243 | 9.9% |
| Distribution | 164 | 182 | (9.9%) | 346 | 365 | (5.2%) |
| Other | 9 | 8 | 12.5% | 14 | 12 | 16.7% |
|  | 307 | 308 | (0.3%) | 627 | 620 | 1.1% |

---

<u>Transmission OM&A Costs</u>

Transmission OM&A costs were 13.6% higher than the quarter ended June 30, 2024, primarily due to:

&nbsp;&nbsp;&nbsp;&nbsp;• higher corporate support costs attributable to lower capitalized overheads;

&nbsp;&nbsp;&nbsp;&nbsp;• lower insurance proceeds received in the period compared to the prior year; and

&nbsp;&nbsp;&nbsp;&nbsp;• higher asset write-offs. .

Transmission OM&A costs were 9.9% higher than the six months ended June 30, 2024, primarily due to the factors noted above, as well as higher work program expenditures, including those attributable to information technology-related expenditures.

<u>Distribution OM&A Costs</u>

Distribution OM&A costs were 9.9% lower than the quarter ended June 30, 2024, primarily due to:

&nbsp;&nbsp;&nbsp;&nbsp;• lower work program expenditures, including vegetation management expenditures;

&nbsp;&nbsp;&nbsp;&nbsp;• lower corporate support costs attributable to higher capitalized overheads; and

&nbsp;&nbsp;&nbsp;&nbsp;• lower allowance for doubtful accounts; partially offset by

&nbsp;&nbsp;&nbsp;&nbsp;• costs related to the storm in March that were recovered from third parties and are offset in revenue, therefore net income neutral.

Distribution OM&A costs were 5.2% lower than the six months ended June 30, 2024, primarily due to similar factors to those noted above.

<sup>2</sup> See section "Non-GAAP Financial Measures".

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|:---|:---|
| 3 | ![hydroonelogo3a.jpg](hydroonelogo3a.jpg) |

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**HYDRO ONE INC.**

**MANAGEMENT'S DISCUSSION AND ANALYSIS (continued)**

**For the three and six months ended June 30, 2025 and 2024**

**Depreciation, Amortization and Asset Removal Costs**

Depreciation, amortization and asset removal costs increased by $25 million and $35 million for the three and six months ended June 30, 2025, respectively, compared to the same periods in 2024 primarily due to higher assets removal costs resulting from storm restoration efforts and the growth in capital assets as the Company continues to place new assets in-service, partially offset by lower amortization of regulatory assets.

**Financing Charges** 

Financing charges increased by $10 million and $25 million for the three and six months ended June 30, 2025, respectively, primarily due to an increase in outstanding long-term debt and higher weighted-average interest rates as well as lower weighted-average interest rates on short-term investments, partially offset by higher capitalized interest.

**Income Tax Expense**

Income tax expense of $64 million for the three months ended June 30, 2025, compares to $57 million for the same period in 2024. The $7 million year-over-year increase was primarily due to:

&nbsp;&nbsp;&nbsp;&nbsp;• higher pre-tax earnings; partially offset by

&nbsp;&nbsp;&nbsp;&nbsp;• higher deductible timing differences compared to the prior year.

Income tax expense of $133 million for the six months ended June 30, 2025, compares to $110 million for the same period in 2024. The year-over-year change was primarily due to similar factors to those noted above.

The Company realized an effective tax rate of approximately 16.0% and 15.9% for the three and six months ended June 30, 2025, respectively, compared to approximately 16.0% and 15.5% in the same periods of 2024. There was no change in the effective tax rate for the three-month period, and the six-month period rate increased by 0.4%, which was primarily attributable to the factors noted above.

**SHARE CAPITAL**

Hydro One is authorized to issue an unlimited number of common shares. The amount and timing of any dividends payable by Hydro One is at the discretion of Hydro One's Board of Directors (Board) and is established on the basis of Hydro One's results of operations, maintenance of its deemed regulatory capital structure, the Company's financial condition and forecast cash requirements, the satisfaction of solvency tests imposed by corporate laws for the declaration and payment of dividends, and other factors that the Board may consider relevant. As at August 12, 2025, Hydro One had 142,239 issued and outstanding common shares.

The Company is authorized to issue an unlimited number of preferred shares, issuable in series. As at August 12, 2025, the Company had no preferred shares issued and outstanding.

**QUARTERLY RESULTS OF OPERATIONS**

---

| | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| **Quarter ended** *(millions of dollars, except EPS and ratio)* | **Jun 30, 2025** | **Mar 31, 2025** | **Dec 31, 2024** | **Sep 30, 2024** | **Jun 30, 2024** | **Mar 31, 2024** | **Dec 31, 2023** | **Sep 30, 2023** |
| Revenues | 2056 | 2397 | 2089 | 2181 | 2019 | 2158 | 1966 | 1923 |
| Purchased power | 899 | 1220 | 1060 | 1047 | 940 | 1096 | 990 | 854 |
| Revenues, net of purchased power<sup>1</sup> | 1157 | 1177 | 1029 | 1134 | 1079 | 1062 | 976 | 1069 |
| Net income attributable to the common shareholder | 334 | 362 | 207 | 374 | 296 | 297 | 181 | 359 |
| Basic and diluted EPS | $2348 | $2545 | $1455 | $2629 | $2081 | $2088 | $1273 | $2524 |
| Earnings coverage ratio<sup>1</sup> | 2.9 | 2.9 | 2.8 | 2.8 | 2.8 | 2.8 | 2.9 | 3.0 |

---

<sup>1&nbsp;&nbsp;&nbsp;&nbsp;</sup>See section "Non-GAAP Financial Measures".

Variations in revenues and net income attributable to the common shareholder over the quarters are primarily due to the impact of seasonal weather conditions on customer demand and market pricing, as well as timing of regulatory decisions.

**CAPITAL INVESTMENTS**

The Company makes capital investments to maintain the safety, reliability and integrity of its transmission and distribution system assets and to provide for the ongoing growth and modernization required to meet the expanding and evolving needs of its customers and the electricity market. This is achieved through a combination of sustaining capital investments, which are required to support the continued operation of Hydro One's existing assets, and development capital investments, which involve additions to both existing assets and large-scale projects such as new transmission lines and transmission stations.

---

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|:---|:---|
| 4 | ![hydroonelogo3a.jpg](hydroonelogo3a.jpg) |

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**HYDRO ONE INC.**

**MANAGEMENT'S DISCUSSION AND ANALYSIS (continued)**

**For the three and six months ended June 30, 2025 and 2024**

**Assets Placed In-Service**

The following table presents Hydro One's assets placed in-service during the three and six months ended June 30, 2025 and 2024:

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| | **Three months ended June 30** | **Three months ended June 30** | **Three months ended June 30** | **Six months ended June 30** | **Six months ended June 30** | **Six months ended June 30** |
|<br>*(millions of dollars)* | **2025** | **2024** | **Change** | **2025** | **2024** | **Change** |
| Transmission | 147 | 290 | (49.3%) | 334 | 354 | (5.6%) |
| Distribution | 439 | 233 | 88.4% | 669 | 405 | 65.2% |
| Total assets placed in-service | 586 | 523 | 12.0% | 1003 | 759 | 32.1% |

---

<u>Transmission Assets Placed In-Service</u>

Transmission assets placed in-service decreased by $143 million, or 49.3%, for the quarter ended June 30, 2025, compared to the same period in 2024, primarily due to:

&nbsp;&nbsp;&nbsp;&nbsp;• timing of assets placed in-service for station refurbishments and replacements primarily related to the Wilson Transmission Station, the Beck 2 Transmission Station, the Sarnia Scott Transmission Station, the Bridgman Transmission Station, and the Edgeware Transmission Station; and

&nbsp;&nbsp;&nbsp;&nbsp;• lower volume of line refurbishments; partially offset by

&nbsp;&nbsp;&nbsp;&nbsp;• investments placed in-service for the Orillia Distribution Warehouse.

Transmission assets placed in-service decreased by $20 million, or 5.6%, for the six months ended June 30, 2025, compared to the same period in 2024, primarily due to similar factors noted above, partially offset by the timing of assets placed in-service for station refurbishments and replacements including the Mackenzie Transmission Station, and investments placed in-service at South Middle Road Transmission Station.

<u>Distribution Assets Placed In-Service</u>

Distribution assets placed in-service increased by $206 million, or 88.4%, for the quarter ended June 30, 2025, compared to the same period in 2024, primarily due to:

&nbsp;&nbsp;&nbsp;&nbsp;• higher volume of storm-related asset replacements, primarily related to the March ice storm and associated restoration efforts;

&nbsp;&nbsp;&nbsp;&nbsp;• investments placed in-service for the Orillia Distribution Warehouse;

&nbsp;&nbsp;&nbsp;&nbsp;• timing of system capability reinforcement projects; and

&nbsp;&nbsp;&nbsp;&nbsp;• investments in the Advanced Metering Infrastructure (AMI) 2.0 system; partially offset by

&nbsp;&nbsp;&nbsp;&nbsp;• lower volume of wood pole replacements.

Distribution assets placed in-service increased by $264 million, or 65.2%, for the six months ended June 30, 2025, compared to the same period in 2024, primarily due to similar factors noted above, as well as investments in the Orillia Operation Centre.

---

| | |
|:---|:---|
| 5 | ![hydroonelogo3a.jpg](hydroonelogo3a.jpg) |

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**HYDRO ONE INC.**

**MANAGEMENT'S DISCUSSION AND ANALYSIS (continued)**

**For the three and six months ended June 30, 2025 and 2024**

**Capital Investments**

The following table presents Hydro One's capital investments during the three and six months ended June 30, 2025 and 2024:

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| | **Three months ended June 30** | **Three months ended June 30** | **Three months ended June 30** | **Six months ended June 30** | **Six months ended June 30** | **Six months ended June 30** |
|<br>*(millions of dollars)* | **2025** | **2024** | **Change** | **2025** | **2024** | **Change** |
| **Transmission** |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Sustaining | 277 | 315 | (12.1%) | 549 | 603 | (9.0%) |
| &nbsp;&nbsp;&nbsp;&nbsp;Development | 192 | 140 | 37.1% | 370 | 249 | 48.6% |
| &nbsp;&nbsp;&nbsp;&nbsp;Other | 21 | 47 | (55.3%) | 30 | 71 | (57.7%) |
|  | 490 | 502 | (2.4%) | 949 | 923 | 2.8% |
| **Distribution** |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Sustaining | 297 | 159 | 86.8% | 440 | 266 | 65.4% |
| &nbsp;&nbsp;&nbsp;&nbsp;Development | 101 | 123 | (17.9%) | 196 | 238 | (17.6%) |
| &nbsp;&nbsp;&nbsp;&nbsp;Other | 22 | 32 | (31.3%) | 56 | 59 | (5.1%) |
|  | 420 | 314 | 33.8% | 692 | 563 | 22.9% |
| **Total capital investments** | 910 | 816 | 11.5% | 1641 | 1486 | 10.4% |

---

<u>Transmission Capital Investments</u>

Transmission capital investments decreased by $12 million, or 2.4%, in the second quarter of 2025 compared to the second quarter of 2024, primarily due to:

&nbsp;&nbsp;&nbsp;&nbsp;• lower volume of station refurbishments and equipment replacements;

&nbsp;&nbsp;&nbsp;&nbsp;• lower spend on major development projects;

&nbsp;&nbsp;&nbsp;&nbsp;• lower volume of line refurbishments and wood pole replacements; and

&nbsp;&nbsp;&nbsp;&nbsp;• lower spend on spare transformer purchases; partially offset by

&nbsp;&nbsp;&nbsp;&nbsp;• investments in the Waasigan Transmission Line.

Transmission capital investments increased by $26 million, or 2.8%, in the six months ended June 30, 2025, compared to the same period in 2024 primarily due to:

&nbsp;&nbsp;&nbsp;&nbsp;• investments in the Waasigan Transmission Line; partially offset by

&nbsp;&nbsp;&nbsp;&nbsp;• lower volume of station refurbishments and equipment replacements;

&nbsp;&nbsp;&nbsp;&nbsp;• lower volume of line refurbishments and wood pole replacements;

&nbsp;&nbsp;&nbsp;&nbsp;• lower spend on major development projects; and

&nbsp;&nbsp;&nbsp;&nbsp;• lower spend on specified equipment to support long-term projects.

<u>Distribution Capital Investments</u>

Distribution capital investments increased by $106 million, or 33.8%, in the second quarter of 2025 compared to the second quarter of 2024, primarily due to:

&nbsp;&nbsp;&nbsp;&nbsp;• higher spend on storm-related asset replacements, primarily related to the March ice storm and associated restoration efforts; and

&nbsp;&nbsp;&nbsp;&nbsp;• investments in Ontario's broadband initiative; partially offset by

&nbsp;&nbsp;&nbsp;&nbsp;• lower volume of wood pole replacements;

&nbsp;&nbsp;&nbsp;&nbsp;• lower spend on system capability reinforcement projects; and

&nbsp;&nbsp;&nbsp;&nbsp;• investments in the Orillia Operation Centre, Orleans Operation Centre, and Orillia Distribution Warehouse in the second quarter of the prior year.

Distribution capital investments increased by $129 million, or 22.9%, in the six months ended June 30, 2025, primarily due to similar factors noted above, as well as by lower spend on customer connections.

---

| | |
|:---|:---|
| 6 | ![hydroonelogo3a.jpg](hydroonelogo3a.jpg) |

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**HYDRO ONE INC.**

**MANAGEMENT'S DISCUSSION AND ANALYSIS (continued)**

**For the three and six months ended June 30, 2025 and 2024**

**Major Transmission Capital Investment Projects**

The following table summarizes the status of significant transmission projects as at June 30, 2025:

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| **<br>Project Name** | **<br>Location** | **<br>Type** | **Anticipated <br>In-Service Date** | **Estimated**<br>**Cost**<sup>1</sup> | **Capital Cost <br>To Date** |
|  |  |  | *(year)* | *&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (millions of dollars)* | *&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (millions of dollars)* |
| **Development Projects:** |  |  | *(year)* | *&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (millions of dollars)* | *&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (millions of dollars)* |
| &nbsp;&nbsp;&nbsp;&nbsp;Centennial Transmission Station<sup>2</sup> | Southwestern Ontario | New transmission station and<br> connection | 2025 | 229 | 126 |
| &nbsp;&nbsp;&nbsp;&nbsp;Islington Transmission Station | Toronto Southern Ontario | New transmission station and<br> connection | 2025 | 109 | 78 |
| &nbsp;&nbsp;&nbsp;&nbsp;Waasigan Transmission Line<sup>3</sup> | Thunder Bay-Atikokan-Dryden<br> Northwestern Ontario | New transmission line and <br> station expansion | 2027 | 1200 | 325 |
| &nbsp;&nbsp;&nbsp;&nbsp;Holt Transmission Station | Bowmanville Central Ontario | New transmission station and <br> connection | 2027 | 137 | 11 |
| &nbsp;&nbsp;&nbsp;&nbsp;St. Clair Transmission Line<sup>4</sup> | Southwestern Ontario | New transmission line and<br> station expansion | 2028 | 472 | 167 |
| &nbsp;&nbsp;&nbsp;&nbsp;Longwood to Lakeshore<br> Transmission Line<sup>5</sup> | Southwestern Ontario | New transmission line and<br> station expansion | TBD | TBD | 25 |
| &nbsp;&nbsp;&nbsp;&nbsp;Durham Kawartha Power Line<sup>6,7</sup> | Eastern Ontario | New transmission line and<br> station expansion | TBD | TBD | 14 |
| &nbsp;&nbsp;&nbsp;&nbsp;Northeast Power Line<sup>6,7</sup> | Northeastern Ontario | New transmission line and<br> station expansion | TBD | TBD | 13 |
| &nbsp;&nbsp;&nbsp;&nbsp;North Shore Link<sup>6,7</sup> | Northeastern Ontario | New transmission line and<br> station expansion | TBD | TBD | 10 |
| &nbsp;&nbsp;&nbsp;&nbsp;Wawa Timmins Power Line<sup>6,7</sup> | Northeastern Ontario | New transmission line and<br> station expansion | TBD | TBD | 3 |
| &nbsp;&nbsp;&nbsp;&nbsp;Lakeshore to Windsor <br>&nbsp;&nbsp;&nbsp;&nbsp; Transmission Line<sup>5</sup> | Southwestern Ontario | New transmission line and<br> station expansion | TBD | TBD | 1 |
| &nbsp;&nbsp;&nbsp;&nbsp;Second Longwood to Lakeshore<br> Transmission Line<sup>5</sup> | Southwestern Ontario | New transmission line and<br> station expansion | TBD | TBD | _ |
| **Sustainment Projects:** |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Bruce B Switching Station<br>&nbsp;&nbsp;&nbsp;&nbsp; Circuit Breaker Replacement<sup>8</sup> | Tiverton<br> Southwestern Ontario | Station sustainment | 2025 | 185 | 177 |
| &nbsp;&nbsp;&nbsp;&nbsp;Middleport Transmission Station <br>&nbsp;&nbsp;&nbsp;&nbsp; Circuit Breaker Replacement | Middleport<br> Southwestern Ontario | Station sustainment | 2025 | 184 | 167 |
| &nbsp;&nbsp;&nbsp;&nbsp;Lennox Transmission Station<br>&nbsp;&nbsp;&nbsp;&nbsp; Circuit Breaker Replacement | Napanee<br> Southeastern Ontario | Station sustainment | 2026 | 152 | 147 |
| &nbsp;&nbsp;&nbsp;&nbsp;Esplanade x Terauley<br>&nbsp;&nbsp;&nbsp;&nbsp; Underground Cable Replacement | Toronto<br> Southern Ontario | Line sustainment | 2026 | 117 | 80 |
| &nbsp;&nbsp;&nbsp;&nbsp;Bridgman Transmission Station<br>&nbsp;&nbsp;&nbsp;&nbsp; Refurbishment | Toronto<br> Southern Ontario | Station sustainment | 2026 | 108 | 87 |
| &nbsp;&nbsp;&nbsp;&nbsp;Bruce A Transmission Station<br>&nbsp;&nbsp;&nbsp;&nbsp; Switchyard Replacement | Tiverton<br> Southwestern Ontario | Station sustainment | 2027 | 555 | 383 |
| &nbsp;&nbsp;&nbsp;&nbsp;Otto Holden Transmission Station<br>&nbsp;&nbsp;&nbsp;&nbsp; Refurbishment | Mattawa<br> Northeast Ontario | Station sustainment | 2028 | 128 | 45 |
| &nbsp;&nbsp;&nbsp;&nbsp;Merivale Transmission Station<br>&nbsp;&nbsp;&nbsp;&nbsp; Replacement and Upgrades<sup>9</sup> | Ottawa<br> Eastern Ontario | Station sustainment and<br> upgrade | 2029 | 271 | 143 |
| &nbsp;&nbsp;&nbsp;&nbsp;Synchronous Optical Network <br>&nbsp;&nbsp;&nbsp;&nbsp; Telecommunication Replacement | Ontario | Telecommunication sustainment | 2029 | 137 | 13 |
| &nbsp;&nbsp;&nbsp;&nbsp;Essa Transmission Station Circuit<br>&nbsp;&nbsp;&nbsp;&nbsp; Breaker Replacement | Barrie<br> Central Ontario | Station sustainment | 2030 | 116 | 5 |

---

<sup>1</sup> Estimated costs are presented gross of any potential contribution from external parties.

<sup>2</sup> This Project is part of a two-phase project, which includes the construction of a transmission station and a transmission line to meet the needs of, and is anticipated to be largely funded by, an industrial customer. Phase 1 of the Centennial Transmission Station Project includes a new transmission station in St. Thomas and an approximately 2 km, 230 kV double-circuit transmission line between the new transmission station and an existing transmission station in the city. This phase of the project is anticipated to be in service by the end of 2025. Scope and timing of the second phase, an approximately 20 km, 230 kV double-circuit transmission line from London to St. Thomas, is currently under review.

<sup>3</sup> The Waasigan Transmission Line Project includes construction of new transmission lines as well as station enhancements to support energization of the new lines. The estimated cost relates to the development and construction phases of the project and the anticipated in-service date reflects anticipated completion in 2027. The first phase of the project is anticipated to be in-serviced in 2026.

<sup>4</sup> The St. Clair Transmission Line Project includes the line and associated facilities.

<sup>5</sup> The capital cost to date relates to costs incurred in the development phase of the project. The scope and timing of these Southwestern Ontario transmission reinforcement projects are currently under review. The Independent Electricity System Operator (IESO) has recommended a target in-service date by 2032 for the Lakeshore to Windsor Transmission Line.

<sup>6</sup> The capital cost to date relates to costs incurred in the development phase of the project. The scope and timing of these Northeastern and Eastern Ontario transmission reinforcements are currently under review. The Wawa Timmins Power Line was previously referred to as the Wawa to Porcupine Transmission Line.

<sup>7</sup> The IESO has recommended a target in-service date of 2030 for the Wawa Timmins Power Line, and of 2029 for the Northeast Power Line, North Shore Link, and the Durham Kawartha Power Line.

<sup>8</sup> Major portions of the Bruce B Switching Station Circuit Breaker Replacement were completed and placed in-service.

<sup>9</sup> The coordinated project includes both an asset replacement and station expansion. The anticipated in-service dates are between 2026 to 2029.

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|:---|:---|
| 7 | ![hydroonelogo3a.jpg](hydroonelogo3a.jpg) |

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**HYDRO ONE INC.**

**MANAGEMENT'S DISCUSSION AND ANALYSIS (continued)**

**For the three and six months ended June 30, 2025 and 2024**

**Future Capital Investments** 

The Company estimates future capital investments based on management's expectations of the amount of capital expenditures that will be required to provide transmission and distribution services that are efficient, reliable, and provide value for customers, consistent with the OEB's Renewed Regulatory Framework. The Company includes projects when there is a high degree of confidence that the project will go forward and when there is a thorough estimate of the expected expenditures.

The forecast below does not include the impact of restoration costs associated with a severe storm that began on March 28, 2025 causing significant damage to system infrastructure and outages to customers in the central and eastern regions of the Province, with restoration efforts continuing into the second quarter. On April 29, 2025, the Company notified the OEB that it intends to submit a Z-Factor application to seek recovery of costs incurred for this storm. The Z-Factor application will seek recovery of approximately $225 million in storm-related costs, including capital and asset removal costs. The forecast is expected to be updated pending the outcome of that application.

The following tables summarize Hydro One's annual projected capital investments for 2025 to 2027 by business segment and by category:

---

| | | | |
|:---|:---|:---|:---|
| **By business segment:** *(millions of dollars)* | **2025** | **2026** | **2027** |
| Transmission<sup>1</sup> | 2284 | 1760 | 1375 |
| Distribution | 1225 | 1061 | 912 |
| **Total capital investments**<sup>2</sup> | 3509 | 2821 | 2287 |

---

---

| | | | |
|:---|:---|:---|:---|
| **By category:** *(millions of dollars)* | **2025** | **2026** | **2027** |
| Sustainment | 1733 | 1359 | 1065 |
| Development<sup>1</sup> | 1559 | 1311 | 1084 |
| Other<sup>3</sup> | 217 | 151 | 138 |
| **Total capital investments**<sup>2</sup> | 3509 | 2821 | 2287 |

---

<sup>1</sup> Figures include investments in certain development projects of Hydro One Networks not included in the investment plan approved by the OEB in the JRAP decision.

<sup>2</sup> Since the first quarter of 2022, the Minister of Energy and Electrification (formerly the Minister of Energy) (Minister) has directed the OEB to amend Hydro One Networks' transmission licence to require it to develop and seek approvals for eight priority transmission lines in Ontario. The future capital investments presented do not include capital expenditures, nor development costs, associated with the following three priority Southwestern Ontario transmission line projects: Longwood to Lakeshore Transmission Line, Second Longwood to Lakeshore Transmission Line, and Lakeshore to Windsor Transmission Line; nor the following four priority Northeastern and Eastern Ontario transmission line projects: North Shore Link, Northeast Power Line, Durham Kawartha Power Line, and Wawa to Porcupine Transmission Line (see section "Other Developments - Supporting Critical Transmission Infrastructure in Northeastern and Eastern Ontario"). Hydro One is currently evaluating the scope and timing of these seven lines.

<sup>3</sup> "Other" capital expenditures include investments in fleet, real estate, information technology, and operations technology and related functions.

**SUMMARY OF SOURCES AND USES OF CASH** 

Hydro One's primary sources of cash flows are funds generated from operations, capital market debt issuances and bank credit facilities that are used to satisfy Hydro One's capital resource requirements, including the Company's capital expenditures, servicing and repayment of debt, and dividend payments.

---

| | | | | |
|:---|:---|:---|:---|:---|
| | **Three months ended June 30** | **Three months ended June 30** | **Six months ended June 30** | **Six months ended June 30** |
|<br>*(millions of dollars)* | **2025** | **2024** | **2025** | **2024** |
| Net cash from operating activities | 611 | 830 | 1114 | 1281 |
| Net cash from (used in) financing activities | 163 | (511) | 31 | 307 |
| Net cash used in investing activities | (833) | (843) | (1787) | (1524) |
| **Net change in cash and cash equivalents** | (59) | (524) | (642) | 64 |

---

**Net cash from operating activities**

Net cash from operating activities decreased by $219 million for the three months ended June 30, 2025, compared to the same period in 2024. The decrease was impacted by various factors, including the following:

&nbsp;&nbsp;&nbsp;&nbsp;• decrease in net working capital deficiency primarily attributable to lower non-energy payables and accrued liabilities, lower cost of power payable to the IESO driven by lower commodity rates charges, and higher accounts receivable, partially offset by higher prepaid expense; partially offset by

&nbsp;&nbsp;&nbsp;&nbsp;• higher pre-tax earnings.

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|:---|:---|
| 8 | ![hydroonelogo3a.jpg](hydroonelogo3a.jpg) |

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**HYDRO ONE INC.**

**MANAGEMENT'S DISCUSSION AND ANALYSIS (continued)**

**For the three and six months ended June 30, 2025 and 2024**

Net cash from operating activities decreased by $167 million for the six months ended June 30, 2025, compared to the same period in 2024. The decrease was mainly attributable to similar factors as noted above.

**Net cash from (used in) financing activities**

Net cash from financing activities increased by $674 million and decreased by $276 million for the three and six months ended June 30, 2025, respectively, compared to the same periods in 2024. This was impacted by various factors, including the following:

<u>Sources of cash</u>

&nbsp;&nbsp;&nbsp;&nbsp;• the Company received proceeds of $2,065 million and $3,140 million from the issuance of short-term notes in the three and six month periods ended June 30, 2025, respectively, compared to $1,095 million and $1,595 million received in the same periods last year.

&nbsp;&nbsp;&nbsp;&nbsp;• the Company did not issue long-term debt in the three and six months ended June 30, 2025, respectively, compared to $nil and $800 million issued in the same period last year.

<u>Uses of cash</u>

&nbsp;&nbsp;&nbsp;&nbsp;• the Company repaid $1,350 million and $1,965 million of short-term notes in the three and six month periods ended June 30, 2025, respectively, compared to $715 million and $995 million repaid in the same periods last year.

&nbsp;&nbsp;&nbsp;&nbsp;• the Company repaid $350 million and $750 million of long-term debt in the three and six month periods ended June 30, 2025, compared to $700 million paid in the same periods last year.

&nbsp;&nbsp;&nbsp;&nbsp;• common share dividends paid in the three and six month periods ended June 30, 2025 were $207 million and $394 million, respectively, compared to dividends of $187 million and $363 million paid in the same periods last year.

**Net cash used in investing activities**

Net cash used in investing activities decreased by $10 million and increased by $263 million for the three and six months ended June 30, 2025, respectively, compared to the same periods in 2024. The decrease in the second quarter was primarily due to lower additions to future use assets, partially offset by higher capital investments. The year-to-date period reflects the investment in EWT LP (see section "Other Developments - EWT LP") and higher capital investments. See section "Capital Investments" for comparability of capital investments made by the Company during the three and six months ended June 30, 2025 compared to the prior year.

**LIQUIDITY AND FINANCING STRATEGY** 

Short-term liquidity is provided through FFO,<sup>3</sup> Hydro One's commercial paper program, and the Company's consolidated bank credit facilities. Under the commercial paper program, Hydro One is authorized to issue up to $2,300 million in short-term notes with a term to maturity of up to 365 days.

As at June 30, 2025, Hydro One had $1,371 million in commercial paper borrowings outstanding, compared to $200 million outstanding at December 31, 2024. The Company also has committed, unsecured, and revolving credit facilities (Operating Credit Facilities) with a total available balance of $3,050 million as at June 30, 2025. The Operating Credit Facilities include a pricing adjustment which can increase or decrease Hydro One's cost of borrowing based on its performance on certain sustainability performance measures, which are related to Hydro One's sustainability goals. On June 1, 2025, Hydro One extended the maturity date of the Operating Credit Facilities from 2029 to 2030. No amounts were drawn on the Operating Credit Facilities as at June 30, 2025 or December 31, 2024. The Company may use the Operating Credit Facilities for working capital and general corporate purposes. The short-term liquidity under the commercial paper program, the Operating Credit Facilities, available cash on hand and anticipated levels of FFO<sup>3</sup> are expected to be sufficient to fund the Company's operating requirements.

As at June 30, 2025, the Company had long-term debt outstanding in the principal amount of $16,320 million. The long-term debt issued by Hydro One has been issued under its Medium-Term Note (MTN) Program, as further described below. The Company's total long-term debt consists of notes and debentures that mature between 2025 and 2064, and as at June 30, 2025, had a weighted-average term to maturity of approximately 14.1 years (December 31, 2024 - 13.9 years) and a weighted-average coupon rate of 4.3% (December 31, 2024 - 4.3%).

In February 2024, Hydro One filed a short form base shelf prospectus in connection with its MTN Program, which expires in March 2026.

**Compliance**

As at June 30, 2025, the Company was in compliance with all financial covenants and limitations associated with the outstanding borrowings and credit facilities.

<sup>3</sup> See section "Non-GAAP Financial Measures".

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**HYDRO ONE INC.**

**MANAGEMENT'S DISCUSSION AND ANALYSIS (continued)**

**For the three and six months ended June 30, 2025 and 2024**

**OTHER OBLIGATIONS**

**Off-Balance Sheet Arrangements**

There are no off-balance sheet arrangements that have, or are reasonably likely to have, a material current or future effect on the Company's financial condition, changes in financial condition, revenues or expenses, results of operations, liquidity, capital expenditures or capital resources.

**Summary of Contractual Obligations and Other Commercial Commitments** 

The following table presents a summary of Hydro One's debt and other major contractual obligations and commercial commitments:

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| <br>**As at June 30, 2025** *(millions of dollars)* | <br>**Total** | **Less than**<br>**1 year** | <br>&nbsp;&nbsp;&nbsp;&nbsp;**1-3 years** | <br>**3-5 years** | **More than** <br>**5 years** |
| **Contractual obligations** *(due by year)* | | | | | |
| Long-term debt - principal repayments | 16320 | 900 | 1175 | 1900 | 12345 |
| Long-term debt - interest payments | 10043 | 694 | 1314 | 1209 | 6826 |
| Short-term notes payable | 1371 | 1371 |  |  |  |
| Pension contributions<sup>1</sup> | 472 | 82 | 166 | 178 | 46 |
| Outsourcing and other agreements | 115 | 66 | 31 | 6 | 12 |
| Environmental and asset retirement obligations | 99 | 16 | 6 | 3 | 74 |
| Lease obligations | 50 | 15 | 27 | 7 | 1 |
| Long-term software/meter agreement | 14 | 6 | 4 | 4 |  |
| **Total contractual obligations** | 28484 | 3150 | 2723 | 3307 | 19304 |
| **Other commercial commitments** *(by year of expiry)* |  |  |  |  |  |
| Operating Credit Facilities | 3050 |  |  | 3050 |  |
| Letters of credit<sup>2</sup> | 163 | 163 |  |  |  |
| Guarantees<sup>3</sup> | 475 | 475 |  |  |  |
| **Total other commercial commitments** | 3688 | 638 |  | 3050 |  |

---

<sup>1</sup> Contributions to the Hydro One Pension Plan are based on actuarial reports, including valuations performed at least every three years, and actual or projected levels of pensionable earnings, as applicable.

<sup>2</sup> Letters of credit consist of $153 million letters of credit related to retirement compensation arrangements, a $3 million letter of credit provided to the IESO for prudential support, and $7 million in letters of credit for various operating purposes.

<sup>3</sup> Guarantees consist of $475 million prudential support provided to the IESO by Hydro One on behalf of its subsidiaries.

**REGULATION** 

**OEB Cost of Capital Policy Review** 

On March 6, 2024, the OEB commenced a hearing on its own motion to consider the methodology for determining the values of the cost of capital parameters and deemed capital structure to be used in the rate-setting process, as well as the methodology for determining the OEB's prescribed interest rates and matters related to the Incremental Cloud Computing Implementation Costs deferral account, including what type of interest rate, if any, should apply to the account. On March 27, 2025, the OEB issued its Decision and Order, issuing new cost of capital parameters and confirming that the new cost of capital parameters will take effect at a utility's next rebasing rate application. The OEB's approach for deemed capital structure remained unchanged at 40% equity and 60% debt, for transmission and distribution electricity utilities. The OEB also concluded that the prescribed interest rate for deferral and variance accounts will continue to apply to the Incremental Cloud Computing Implementation Costs deferral account, and that each utility, in its next rebasing rate application, can propose the treatment of any future cloud solutions during the rate term, which could include a new cloud solution deferral account. If no proposal is made during that rebasing rate application, the account will be closed.

**Extended Horizons Variance Account**

On March 20, 2025, the OEB established a generic deferral and variance account, effective November 18, 2024. This variance account allows rate-regulated electricity distributors to record the incremental revenue requirement impacts resulting from reductions in the forecasted customer capital contributions embedded in distribution rates related to the OEB's amendments to the Distribution System Code in December, 2024, which extend the connection horizon and revenue horizon for certain customer connections. The Company has not recorded any amounts in this account as at June 30, 2025.

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| 10 | ![hydroonelogo3a.jpg](hydroonelogo3a.jpg) |

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------

**HYDRO ONE INC.**

**MANAGEMENT'S DISCUSSION AND ANALYSIS (continued)**

**For the three and six months ended June 30, 2025 and 2024**

**Building Broadband Faster Act, 2021**

In March 2021, the Province of Ontario (Province) introduced Bill 257, Supporting Broadband and Infrastructure Expansion Act, 2021, to create a new act entitled the Building Broadband Faster Act, 2021 (BBFA) that is aimed at supporting the timely deployment of broadband infrastructure within unserved and underserved rural Ontario communities. Bill 257 received Royal Assent on April 12, 2021. Bill 257 amended the *Ontario Energy Board Act, 1998* (OEBA) to provide the Province with regulation-making authority regarding the development of, access to, or use of electricity infrastructure for non-electricity purposes. The BBFA Guideline and two regulations informing the legislative changes were also published in 2021, with a third regulation on annual wireline attachment rate for telecommunications carriers issued in December 2021. The most recent Order and Decision from the OEB adjusts the annual wireline attachment rate to $39.14 per attacher per pole, effective January 1, 2025.

In March 2022, the Province introduced Bill 93 (Getting Ontario Connected Act, 2022). Bill 93 received Royal Assent on April 14, 2022. Bill 93 amends the BBFA to ensure that organizations that own underground utility infrastructure near a designated high-speed internet project provide timely access to their infrastructure data, which would allow internet service providers to quickly start work on laying down underground high-speed internet infrastructure.

A regulation regarding electricity infrastructure and designated broadband projects under the OEBA (O.Reg. 410/22) came into force on April 21, 2022. On July 7, 2022, the OEB established a deferral account for rate-regulated distributors to record incremental costs associated with carrying out activities pertaining to designated broadband projects. In September 2022, the Company launched its choice-based operating model to provide internet service providers with choices on how to access the Company's infrastructure in order to effectively execute designated broadband projects. On March 28, 2023, the Province amended the OEBA (O.Reg. 410/22) with respect to performance timelines associated with designated broadband projects.

On August 14, 2023, the third edition of the BBFA Guideline was issued with amendments providing additional guidance to support the implementation of legislative and regulatory requirements, including a framework to support cost sharing for pole attachments and make-ready work.

The Company has developed and adapted an appropriate management framework that meets the government's objectives, including arrangements to sustain the Company's revenues and recovery of reasonable associated costs.

On October 31, 2024, the Ministry of Infrastructure announced that it has developed a program to deliver up to $400 million in subsidies to internet service providers (ISPs) for work associated with designated broadband projects. The program is intended to enable ISPs to successfully and safely attach their material and equipment to the Company's poles to bring connectivity to rural communities as part of a designated broadband project. A portion of the subsidies will be used to reimburse Hydro One Networks on behalf of ISPs for their share of enablement costs incurred to facilitate the program to date (see section "Related Party Transactions").

**Affordable Energy Act, 2024 and Ontario Integrated Energy Plan**

In January 2024, the Electrification and Energy Transition Panel, an advisory body to the Province, released its report outlining a roadmap for Ontario's transition to a clean energy economy. In October 2024, the Province released its vision for Ontario's energy sector, Ontario's Affordable Energy Future, outlining key objectives to meet growing electricity demand in Ontario. This vision was intended to help guide the Province's first integrated energy plan (IEP), among other initiatives. In support, Bill 214, Affordable Energy Act, 2024, was introduced and subsequently received Royal Assent on December 4, 2024. The Affordable Energy Act, 2024 amended various statutes, including the Electricity Act and the OEBA, providing a legislative framework to replace the Province's long-term energy plans (including the 2017 Long-Term Energy Plan), with integrated energy plans. Whereas the focus of the long-term energy plan has been primarily on the electricity system, the integrated energy plan is intended to address all sources of energy. The amendments effected by the Affordable Energy Act, 2024 also allow the Minister, subject to the approval of the Lieutenant Governor in Council, to issue directives to the IESO and OEB setting out implementation requirements relating to the integrated energy plan. From October to December 2024, the Ministry of Energy and Mines (Ministry) (formerly the Ministry of Energy and Electrification) ran a consultation requesting feedback to assist the Province in developing its first plan.

The changes made by the Affordable Energy Act, 2024 to the OEBA, among other things, also provide the Province with the ability to make regulations specifying amendments to the Distribution System Code and the Transmission System Code in relation to certain cost allocation and cost recovery matters relating to the construction, expansion or reinforcement of distribution systems or transmission systems, or of connections to those systems. The changes made by the Affordable Energy Act, 2024 also allow regulations to be made exempting persons or things from provisions of the Distribution System Code and the Transmission System Code relating to cost allocation or cost recovery, as well as alternative provisions that apply instead.

On June 12, 2025, the Ontario government released its first IEP, *Energy for Generations*, which aims to leverage electricity, natural gas, hydrogen, storage and other energy sources to provide Ontario with affordable, secure, reliable and clean energy to power growth and jobs across the province. The IEP establishes a planning horizon out to 2050, including the acceleration of the development of transmission infrastructure and the modernization of the distribution grid. As part of the IEP, the government announced the advancement of several new transmission projects, including the following:

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**HYDRO ONE INC.**

**MANAGEMENT'S DISCUSSION AND ANALYSIS (continued)**

**For the three and six months ended June 30, 2025 and 2024**

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• Barrie to Sudbury Transmission Line, a new single circuit 500 kV line between Essa Transformer Station (TS) and Hanmer TS, including any associated station facilities with a target in-service date of 2032, as well as early development work on a second 500 kV line;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• Orangeville to Barrie Reconductoring Project, which involves the reconductoring of Hydro One's existing 230kV transmission lines between Orangeville TS (Orangeville) and Essa TS (Barrie), with a target in-service date of 2027;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• Bowmanville to Greater Toronto Area (GTA) Transmission Line, a new double-circuit 500 kV line from Bowmanville Switching Station (SS) to an existing 500 kV station in the GTA with a target in-service in the early 2030s;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• Windsor to Lakeshore Transmission Line, a new 230 kV transmission line from Lauzon Transformer Station (Windsor) to Lakeshore Transformer Station (Lakeshore) with a target in-service date of 2032; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• Greenstone Transmission Line, a new 230 kV transmission line between Longlac TS (Geraldton) to Nipigon Generation Station and connecting into the East-West Tie near Nipigon Bay, and associated station facilities, with a target in-service in 2032.

On June 16, 2025, the Ministry announced a series of proposals to take certain actions to facilitate the timely development of several transmission projects to further the objectives outlined in the IEP.

The Ministry is proposing, subject to required approvals, to declare the five transmission projects as priority projects. The second Barrie to Sudbury Transmission Line is not being proposed to be declared priority at this time.

The Ministry is also proposing to bring forward Orders in Council (to be recommended by the Minister of Energy and Mines (Minister)) and companion directive, that would, if approved, direct the OEB to amend Hydro One Networks' transmitter licence to require it to undertake development work and seek all necessary approvals to construct the Barrie to Sudbury Transmission Line, the Bowmanville to GTA Transmission Line and the Greenstone Transmission Line, and to undertake development work on the second Barrie to Sudbury Transmission Line. The Minister had previously, on March 31, 2022, directed the OEB to amend Hydro One Networks' licence to require it to develop and seek approvals for the Windsor to Lakeshore Transmission Line. The Orangeville to Barrie Reconductoring Project does not require designation because this project relates to existing Hydro One Networks transmission infrastructure. The consultation period for the proposals announced on June 16, 2025 closes on August 15, 2025.

On July 31, 2025, the IESO announced the launch of the Transmitter Selection Framework (TSF) Registry. Registration enables transmitters to participate in future competitive IESO transmission procurements. Hydro One Networks intends to submit an application to be included in the TSF Registry.

**OTHER DEVELOPMENTS**

**EWT LP** 

On March 4, 2025, Hydro One Networks completed the acquisition of an approximate 48% interest in the EWT LP for approximately $261 million in cash, including closing adjustments. The partnership owns the East-West Tie Line, a 450-kilometre, 230-kV double-circuit transmission line spanning between Wawa and Thunder Bay, along the north shore of Lake Superior.

**Northern Ontario Voltage Study** 

In December 2023, the IESO published its Northern Ontario Voltage Study Report (Bulk System Reactive Requirements in Northern Ontario) (the Study), which recommended installation of reactive compensation devices at several stations in Northern Ontario to address both current and future system conditions that are expected once new Northern transmission lines are in-service. This study includes projects being developed by Hydro One, including: the East-West Tie Station Expansion, the Waasigan Transmission Line, the Northeast Power Line (previously referred to as the Hanmer to Mississagi Line), and the North Shore Link (previously referred to as Mississagi to Third Line Line).

In March 2024, the Company received a letter from the IESO recommending Hydro One proceed with the implementation of the reactive devices, in line with the timelines identified by the IESO. The Company has reviewed and assessed the results of the Study and recommendation from the IESO and has incorporated them into the associated projects so as to meet the timelines identified by the IESO.

**Supporting Critical Transmission Infrastructure in Northeastern and Eastern Ontario** 

On July 10, 2023, the Ministry (formerly the Ministry of Energy) announced a proposal to take certain actions to facilitate the timely development of three transmission projects across Northeastern and Eastern Ontario: North Shore Link, Northeast Power Line, Durham Kawartha Power Line. On October 23, 2023, the Minister (formerly the Minister of Energy) directed the OEB to amend Hydro One Networks' licence to require it to develop and seek approvals for these three priority transmission line projects. On November 14, 2023, further to the Minister's Directive, the OEB amended Hydro One Networks' electricity transmission licence to require it to develop and seek approvals for these projects in accordance with the recommendations of the IESO.

On August 1, 2024, the Ministry announced a proposal to declare the Wawa to Porcupine line as a priority project and designate Hydro One Networks, in partnership with the Wabun Tribal Council, its members and Missanabie Cree First Nation, as the transmitter. These actions are intended to facilitate the timely development of a new 230 kV, 260 km transmission line in

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| 12 | ![hydroonelogo3a.jpg](hydroonelogo3a.jpg) |

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**HYDRO ONE INC.**

**MANAGEMENT'S DISCUSSION AND ANALYSIS (continued)**

**For the three and six months ended June 30, 2025 and 2024**

Northeastern Ontario from the Wawa Transformer Station (south of Wawa) to the Porcupine Transformer Station (Timmins area); based on IESO forecasts, the government has identified a targeted in-service date of 2030; planned development work will inform the final construction schedule. The proposal was open for a 45 day consultation period ending September 15, 2024. On November 28, 2024, the Minister directed the OEB to amend Hydro One Networks' transmission license to require it to develop and seek approvals for this project. On December 23, 2024, further to the Minister's Directive, the OEB amended Hydro One Networks' electricity transmission licence to allow it to develop and seek approvals for this Project in accordance with the recommendations of the IESO.

**Collective Agreements**

On May 4, 2025, Hydro One Inc. reached tentative renewal agreements with the PWU for both its main collective agreement and its Customer Service Operations (CSO) collective agreement which merges the two agreements into one. On June 2, 2025, the agreement was ratified by the PWU membership for a term from October 1, 2025, to March 31, 2028. Hydro One's current collective agreement with the Society of United Professionals (Society) will expire on September 30, 2025. Bargaining to renew the Society collective agreement began on June 17, 2025 and is ongoing.

The construction building trade unions have collective agreements with the Electrical Power Systems Construction Association (EPSCA). EPSCA is an employers' association of which Hydro One is a member. All 20 of the EPSCA construction collective agreements, which bind Hydro One, expired on April 30, 2025. EPSCA negotiated five-year renewal agreements, covering the period from May 1, 2025 to April 30, 2030, for all 20 collective agreements.

**Bill 2, Protect Ontario Through Free Trade Within Canada Act, and Bill 5, Protect Ontario by Unleashing our Economy Act** 

On April 16, 2025, the Ontario Government introduced Bill 2, *Protect Ontario Through Free Trade Within Canada Act*, 2025. The legislation enables the province to, among other things, enter into mutual recognition agreements with other provinces to remove internal trade barriers in the movement of goods, services, and labour.

On April 17, 2025, the Government introduced Bill 5, the *Protect Ontario by Unleashing our Economy Act*, which aims to streamline the permitting and authorization process for certain projects, including major infrastructure, including thorough proposed changes to the environmental permitting process in Ontario.

These Bills received Royal Assent on June 5, 2025. The Company is assessing the potential impacts of this legislation and associated regulations on Hydro One.

**Sustainability Report** 

The Hydro One Limited 2024 Sustainability Report entitled "A Better and Brighter Future For All" is available on the Company's website at <u>www.hydroone.com/sustainability</u>.

The 2024 Sustainability Report highlights the alignment of sustainability with Hydro One's refreshed corporate strategy to enable the Company to continue to deliver for its customers and all Ontarians. The report discloses the Company's performance across a range of environmental, social and governance measures from January 1, 2024 to December 31, 2024.

**HYDRO ONE BOARD OF DIRECTORS AND EXECUTIVE OFFICERS** 

**Board of Directors**

Effective March 24, 2025, Timothy Hodgson, then Chair of the Board of Directors, commenced an unpaid leave of absence to pursue candidacy in the federal election. The board appointed Susan Wolburgh Jenah as Interim Chair on the same date.

On April 28, 2025, Mr. Hodgson formally resigned from the Board of Directors.

Subsequently, the Board appointed Melissa Sonberg as Chair of the Board, with the appointment taking effect on June 4, 2025.

Director Cherie Brant did not stand for re-election at the Annual and Special Meeting of Shareholders on June 24, 2025.

**Executive Officers**

Effective February 18, 2025, Gillian Whitebread joined Hydro One as Executive Vice President (EVP), Head of Human Resources. On the same day, Megan Telford's title became EVP, Strategy and Energy Transition.

Effective July 21, 2025, Megan Telford was appointed as Chief Operating Officer, and Lisa Pearson was appointed as EVP, Corporate Affairs.

**NON-GAAP FINANCIAL MEASURES**

Hydro One uses a number of non-GAAP financial measures to assess its performance. The Company presents FFO or "funds from operations" to reflect a measure of the Company's cash flow, revenues, net of purchased power, to reflect the impact of revenue on net income, and net debt to reflect a measure of the Company's financial leverage.

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| 13 | ![hydroonelogo3a.jpg](hydroonelogo3a.jpg) |

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**HYDRO ONE INC.**

**MANAGEMENT'S DISCUSSION AND ANALYSIS (continued)**

**For the three and six months ended June 30, 2025 and 2024**

Hydro One also uses financial ratios that are non-GAAP ratios such as the net debt to capitalization ratio and annualized FFO to net debt ratio to reflect a measure of the Company's financial leverage, and the earnings coverage ratio to reflect a measure of liquidity.

**FFO**

FFO is defined as net cash from operating activities, adjusted for changes in non-cash balances related to operations and distributions to noncontrolling interest. Management believes that FFO is helpful as a supplemental measure of the Company's operating cash flows as it excludes timing-related fluctuations in non-cash operating working capital and cash flows not attributable to common shareholders. As such, management believes that FFO provides a consistent measure of the cash generating performance of the Company's assets.

The following table provides a reconciliation of GAAP (reported) results to non-GAAP (adjusted) results on a consolidated basis.

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| | | | | |
|:---|:---|:---|:---|:---|
| | **Three months ended June 30** | **Three months ended June 30** | **Six months ended June 30** | **Six months ended June 30** |
|<br>*(millions of dollars)* | **2025** | **2024** | **2025** | **2024** |
| Net cash from operating activities | 611 | 830 | 1114 | 1281 |
| Changes in non-cash balances related to operations | 11 | (311) | 192 | (153) |
| Distributions to noncontrolling interest | (2) | (2) | (7) | (6) |
| **FFO** | 620 | 517 | 1299 | 1122 |

---

**Revenues, Net of Purchased Power**

Revenues, net of purchased power, is defined as revenues less the cost of purchased power; distribution revenues, net of purchased power, is defined as distribution revenues less the cost of purchased power. These measures are used internally by management to assess the impacts of revenue on net income and are considered useful because they exclude the cost of power that is fully recovered through revenues and therefore net income neutral.

The following tables provide a reconciliation of reported GAAP revenues to non-GAAP revenues, net of purchased power, on a consolidated basis.

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| | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| **Quarter ended** *(millions of dollars)* | **Jun 30, 2025** | **Mar 31, 2025** | **Dec 31, 2024** | **Sep 30, 2024** | **Jun 30, 2024** | **Mar 31, 2024** | **Dec 31, 2023** | **Sep 30, 2023** |
| Revenues | 2056 | 2397 | 2089 | 2181 | 2019 | 2158 | 1966 | 1923 |
| Less: Purchased power | 899 | 1220 | 1060 | 1047 | 940 | 1096 | 990 | 854 |
| **Revenues, net of purchased power** | 1157 | 1177 | 1029 | 1134 | 1079 | 1062 | 976 | 1069 |

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| | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| **Quarter ended** *(millions of dollars)* | **Jun 30, 2025** | **Mar 31, 2025** | **Dec 31, 2024** | **Sep 30, 2024** | **Jun 30, 2024** | **Mar 31, 2024** | **Dec 31, 2023** | **Sep 30, 2023** |
| Distribution revenues | 1434 | 1761 | 1583 | 1551 | 1436 | 1605 | 1459 | 1329 |
| Less: Purchased power | 899 | 1220 | 1060 | 1047 | 940 | 1096 | 990 | 854 |
| **Distribution revenues, net of purchased power** | 535 | 541 | 523 | 504 | 496 | 509 | 469 | 475 |

---

**Net Debt**

The Company uses net debt as an alternative measure of outstanding debt. Management considers net debt as an important measure in assessing the financial leverage of the Company. Net debt is used by management to assess the Company's overall debt position and financial leverage.

The following table provides a reconciliation of net debt as reported in the Company's Consolidated Financial Statements.

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| | | |
|:---|:---|:---|
| **As at** *(millions of dollars)* | **Jun 30, 2025** | **Dec 31, 2024** |
| Short-term notes payable | 1371 | 200 |
| Less: cash and cash equivalents | (48) | (690) |
| Long-term debt (current portion) | 900 | 1150 |
| Long-term debt (long-term portion) | 15405 | 15905 |
| **Net Debt** | **17628** | **16565** |

---

**Net Debt to Capitalization Ratio**

The Company believes that the net debt to capitalization ratio is an important non-GAAP ratio as a measure of the Company's financial leverage. Net debt to capitalization ratio has been calculated as net debt, as described above, divided by net debt plus total shareholders' equity, but excluding any amounts related to noncontrolling interest. Management believes that the net debt to capitalization ratio is helpful as a measure of the proportion of debt in the Company's capital structure.

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**HYDRO ONE INC.**

**MANAGEMENT'S DISCUSSION AND ANALYSIS (continued)**

**For the three and six months ended June 30, 2025 and 2024**

---

| | | |
|:---|:---|:---|
| **As at** *(millions of dollars)* | **Jun 30, 2025** | **Dec 31, 2024** |
| **Net debt (A)** | **17628** | **16565** |
| Shareholder's equity (excluding noncontrolling interest) | 12696 | 12393 |
| **Net debt plus shareholder's equity (B)** | **30324** | **28958** |

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| | | | | |
|:---|:---|:---|:---|:---|
| **Net Debt-to-capitalization ratio (A/B)** | **58.1** | **%** | **57.2** | **%** |

---

**Annualized FFO to Net Debt**

Management believes that the annualized FFO to net debt ratio is helpful as a measure of the Company's financial leverage. Annualized FFO to net debt ratio has been calculated as FFO (see section "Non-GAAP Financial Measures - FFO") on a rolling twelve-month period divided by net debt at the period end date (see section "Non-GAAP Financial Measures – Net Debt"). Management believes the annualized FFO to net debt ratio is helpful as a measure of the company's ability to pay off its debt using the Company's net operating income.

The following table provides a reconciliation of reported GAAP results to non-GAAP results on a consolidated basis.

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| | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| **Twelve months and period ended** *(millions of dollars)* | **Jun 30, 2025** | **Mar 31, 2025** | **Dec 31, 2024** | **Sep 30, 2024** | **Jun 30, 2024** | **Mar 31, 2024** | **Dec 31, 2023** | **Sep 30, 2023** |
| Annualized FFO (A) | 2457 | 2354 | 2280 | 2234 | 2216 | 2249 | 2141 | 2102 |
| Net Debt (B) | 17628 | 17207 | 16565 | 16286 | 15894 | 15690 | 15282 | 15038 |

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|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| **Annualized FFO to Net Debt (A/B)** | **13.9** | **%** | **13.7** | **%** | **13.8** | **%** | **13.7** | **%** | **13.9** | **%** | **14.3** | **%** | **14.0** | **%** | **14.0** | **%** |

---

**Earnings Coverage Ratio**

Earnings coverage ratio is defined as earnings before income taxes and financing charges attributable to the shareholder, divided by the sum of financing charges and capitalized interest, and is calculated on a rolling twelve-month basis. The Company believes that the earnings coverage ratio is an important non-GAAP measure in the management of its liquidity.

---

| | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| **Quarter ended** *(millions of dollars)* | **Jun 30, 2025** | **Mar 31, 2025** | **Dec 31, 2024** | **Sep 30, 2024** | **Jun 30, 2024** | **Mar 31, 2024** | **Dec 31, 2023** | **Sep 30, 2023** |
| Net income attributable to the common shareholder | 334 | 362 | 207 | 374 | 296 | 297 | 181 | 359 |
| Income tax expense | 64 | 69 | 19 | 59 | 57 | 53 | 13 | 37 |
| Financing charges | 165 | 162 | 161 | 154 | 155 | 147 | 145 | 142 |
| Earnings before income taxes and financing charges attributable to the common shareholder | 563 | 593 | 387 | 587 | 508 | 497 | 339 | 538 |

---

---

| | | |
|:---|:---|:---|
| **Twelve months ended** *(millions of dollars)* | **Jun 30, 2025** | **Dec 31, 2024** |
| **Earnings before income taxes and financing charges attributable to the common shareholder (A)** | **2130** | **1979** |

---

---

| | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| **Quarter ended** *(millions of dollars)* | **Jun 30, 2025** | **Mar 31, 2025** | **Dec 31, 2024** | **Sep 30, 2024** | **Jun 30, 2024** | **Mar 31, 2024** | **Dec 31, 2023** | **Sep 30, 2023** |
| Financing charges | 165 | 162 | 161 | 154 | 155 | 147 | 145 | 142 |
| Capitalized interest | 27 | 24 | 24 | 24 | 22 | 19 | 18 | 20 |
| Financing charges and capitalized interest | 192 | 186 | 185 | 178 | 177 | 166 | 163 | 162 |

---

---

| | | |
|:---|:---|:---|
| **Twelve months ended** *(millions of dollars)* | **Jun 30, 2025** | **Dec 31, 2024** |
| **Financing charges and capitalized interest (B)** | **741** | **706** |
| **Earnings coverage ratio = A/B** | **2.9** | **2.8** |

---

---

| | |
|:---|:---|
| 15 | ![hydroonelogo3a.jpg](hydroonelogo3a.jpg) |

---

------

**HYDRO ONE INC.**

**MANAGEMENT'S DISCUSSION AND ANALYSIS (continued)**

**For the three and six months ended June 30, 2025 and 2024**

**RELATED PARTY TRANSACTIONS**

Hydro One is owned by Hydro One Limited. The Province is a shareholder of Hydro One Limited with approximately 47.1% ownership as at June 30, 2025. The Ministry of Infrastructure (MOI) is a related party to Hydro One because it is controlled by the Province. The IESO, Ontario Power Generation Inc. (OPG), Ontario Electricity Financial Corporation (OEFC), the OEB and Acronym Solutions Inc. (Acronym) are related parties to Hydro One because they are controlled or significantly influenced by the Ministry of Energy and Mines or by Hydro One Limited. Hydro One also has transactions in the normal course of business with various government ministries and organizations in Ontario that fall under the purview of the Province. The following is a summary of the Company's related party transactions during the three and six months ended June 30, 2025 and 2024:

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| *(millions of dollars)* | *(millions of dollars)* | **Three months ended June 30** | **Three months ended June 30** | **Six months ended June 30** | **Six months ended June 30** |
| **Related Party** | **Transaction** | **2025** | **2024** | **2025** | **2024** |
| **MOI** | Broadband subsidy<sup>1</sup> | 6 |  | 19 |  |
| **IESO** | Power purchased | 456 | 482 | 1374 | 1301 |
| **IESO** | Revenues for transmission services | 613 | 579 | 1234 | 1129 |
| **IESO** | Amounts related to electricity rebates | 233 | 280 | 508 | 607 |
| **IESO** | Distribution revenues related to rural rate protection | 64 | 63 | 127 | 126 |
| **IESO** | Distribution revenues related to Wataynikaneyap Power LP | 33 | 30 | 66 | 60 |
| **IESO** | Distribution revenues related to supply of electricity to remote northern communities | 13 | 12 | 25 | 24 |
|  | Funding received related to Conservation and Demand Management programs |  | 1 |  | 1 |
| **OPG** | Power purchased | 3 | 5 | 14 | 11 |
| **OPG** | Transmission revenues related to provision of services and supply of electricity |  |  | 1 | 1 |
| **OPG** | Distribution revenues related to provision of services and supply of electricity | 1 | 2 | 4 | 3 |
| **OPG** | Capital contribution received from OPG | 6 |  | 16 | 1 |
|  | Costs related to the purchase of services | 1 |  | 1 |  |
| **OEFC** | Power purchased from power contracts administered by the OEFC |  | 1 | 1 | 1 |
| **OEB** | OEB fees | 3 | 3 | 6 | 6 |
| **Hydro One Limited** | Dividends paid | 207 | 187 | 394 | 363 |
| **Hydro One Limited** | Cost recovery for services provided | 3 | 3 | 6 | 6 |
| **Hydro One Limited** | Stock-based compensation costs | 2 | 2 | 3 | 3 |
| **Acronym** | Services received – costs incurred | 7 | 8 | 14 | 16 |
|  | Revenues for services provided | 1 | 1 | 1 | 1 |

---

<sup>1</sup> See section "Building Broadband Faster Act, 2021".

**RISK MANAGEMENT AND RISK FACTORS** 

Hydro One is subject to numerous risks and uncertainties. Critical to Hydro One's success is the identification, management, and to the extent possible, mitigation of these risks. Hydro One's Enterprise Risk Management program assists decision-makers throughout the organization with the management of key business risks, including new and emerging risks and opportunities.

A discussion of the material risks relating to Hydro One and its business that the Company believes would be the most likely to influence an investor's decision to purchase Hydro One's securities can be found under the heading "Risk Management and Risk Factors" in the 2024 MD&A.

**DISCLOSURE CONTROLS AND PROCEDURES AND INTERNAL CONTROL OVER FINANCIAL REPORTING**

Management is responsible for establishing and maintaining adequate disclosure controls and procedures and internal control over financial reporting as defined in National Instrument 52-109 Certification of Disclosure in Issuers' Annual and Interim Filings. Internal control, no matter how well designed and operated, can provide only reasonable assurance of achieving the desired control objectives and due to its inherent limitations, may not prevent or detect all misrepresentations.

There were no changes in the Company's internal control over financial reporting during the three months ended June 30, 2025 that materially affected, or are reasonably likely to materially affect, the Company's disclosure controls and procedures and internal control over financial reporting.

---

| | |
|:---|:---|
| 16 | ![hydroonelogo3a.jpg](hydroonelogo3a.jpg) |

---

------

**HYDRO ONE INC.**

**MANAGEMENT'S DISCUSSION AND ANALYSIS (continued)**

**For the three and six months ended June 30, 2025 and 2024**

**NEW ACCOUNTING PRONOUNCEMENTS**

The following table presents Accounting Standards Updates (ASUs) issued by the Financial Accounting Standards Board (FASB) that are applicable to Hydro One:

**Accounting Guidance To Be Adopted in 2025**

---

| | | | | |
|:---|:---|:---|:---|:---|
| **Guidance** | **Date issued** | **Description** | **ASU Effective Date** | **Impact on Hydro One** |
| ASU 2024-02 | March 2024 | The amendments contain modifications to the codification that remove various concept statements which may be extraneous and not required to understand or apply the guidance or references used in prior statements to provide guidance in certain topical areas. | Fiscal years beginning after December 15, 2024. | No impact upon adoption |
| ASU 2023-09 | December 2023 | The amendments address investor requests for more transparency about income tax information through improvements to income tax disclosures primarily related to the rate reconciliation and income taxes paid information. | Annual periods beginning after December 15, 2024. | Under assessment |

---

**Recently Issued Accounting Guidance Not Yet Adopted**

---

| | | | | |
|:---|:---|:---|:---|:---|
| **Guidance** | **Date issued** | **Description** | **ASU Effective Date** | **Impact on Hydro One** |
| ASU 2023-06 | October 2023 | The amendments represent changes to clarify or improve disclosure or presentation requirements of a variety of subtopics in the FASB Codification. Many of the amendments allow users to more easily compare entities subject to the U.S. Securities and Exchange's (SEC) existing disclosures with those entities that were not previously subject to the SEC's requirements. Also, the amendments align the requirements in the Codification with the SEC's regulations.<br>Applicable to all entities, if by June 30, 2027 the SEC has not removed the applicable requirement from Regulation S-X or Regulation S-K, the pending content of the related amendment will be removed from the Codification and will not become effective for any entity. | Two years subsequent to the date on which the SEC's removal of that related disclosure becomes effective. | Under assessment |
| ASU<br>2024-03 | November 2024 | The amendments require public business entities to disclose additional information about specific expense categories in the notes to financial statements at interim and annual reporting periods, which are not generally presented in the current financial statements. | Annual periods beginning after December 15, 2026, and interim periods beginning after December 15, 2027. | Under assessment |
| ASU 2025-03 | May 2025 | The amendments require entities to apply the guidance for identifying the accounting acquirer in transactions where a business that qualifies as a Variable Interest Entity (VIE) is acquired through the exchange of equity interests. | Annual and interim periods beginning after December 15, 2026. | Under assessment |
| ASU 2025-05 | July 2025 | The amendments allow all entities to use a practical expedient when estimating expected credit losses for current accounts receivable and contract assets under Topic 606, by assuming that current conditions as of the balance sheet date remain unchanged over the asset's life. Additionally, entities other than public business entities that elect this expedient may adopt an accounting policy to consider post–balance sheet date collection activity in their credit loss estimates. | Annual and interim periods beginning after December 15, 2025. | Under assessment |

---

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| | |
|:---|:---|
| 17 | ![hydroonelogo3a.jpg](hydroonelogo3a.jpg) |

---

------

**HYDRO ONE INC.**

**MANAGEMENT'S DISCUSSION AND ANALYSIS (continued)**

**For the three and six months ended June 30, 2025 and 2024**

**FORWARD-LOOKING STATEMENTS AND INFORMATION**

The Company's oral and written public communications, including this document, often contain "forward-looking information" within the meaning of applicable Canadian securities laws and "forward-looking statements" within the meaning of applicable U.S. securities laws (collectively, "forward-looking information"). Statements containing forward-looking information are made pursuant to the "safe harbour" provisions of applicable Canadian and U.S. securities laws. Forward-looking information in this document is based on current expectations, estimates, forecasts and projections about the Company's business, the industry, regulatory and economic environments in which it operates, and includes beliefs and assumptions made by the management of the Company. Such statements include, but are not limited to, statements regarding: the Company's transmission and distribution rate and revenue requirement applications including the JRAP and its proposed investment plan, resulting and related decisions as well as resulting rates, recovery and expected impacts and timing; expectations about the Company's liquidity and capital resources and operational requirements; sustainability goals; the Operating Credit Facilities; expectations regarding the Company's financing activities; the Company's maturing debt; the Company's ongoing and planned projects, initiatives and expected capital investments, including expected approvals, results, costs, funding sources and in-service and completion dates; expectations regarding the Company's Z-Factor application and impacts of its outcome; contractual obligations and other commercial commitments; the BBFA and expected impacts; expectations regarding the Ministry of Infrastructure's subsidies program to ISPs and its results; the Company's assessment of recovery and impacts related to the OEB-established generic variance and deferral accounts; expected impacts of the OEB's new cost of capital parameters; future pension plan contributions, including estimates of total Company pension contributions; the expected results of the Province's first integrated energy plan; collective agreements and bargaining; Protect Ontario by Unleashing our Economy Act and expected impacts; the Company's expectations regarding submitting an application to be included in the TSF Registry; non-GAAP financial measures; internal controls over financial reporting and disclosure; the MTN Program; and accounting-related guidance and expected impacts. Words such as "expect," "anticipate," "intend," "attempt," "may," "plan," "will," "would," "believe," "seek," "estimate," "goal," "aim," "target," and variations of such words and similar expressions are intended to identify such forward-looking statements. These statements are not guarantees of future performance and involve assumptions and risks and uncertainties that are difficult to predict. Therefore, actual outcomes and results may differ materially from what is expressed, implied or forecasted in such forward-looking statements. Hydro One does not intend, and it disclaims any obligation, to update any forward-looking statements, except as required by law.

These forward-looking statements are based on a variety of factors and assumptions including, but not limited to, the following: no unforeseen changes in the legislative and operating framework for Ontario's electricity market or for Hydro One specifically; favourable decisions from the OEB and other regulatory bodies concerning outstanding and future rate and other applications; no unexpected delays in obtaining required regulatory approvals; no unforeseen changes in rate orders or rate setting methodologies for the Company's distribution and transmission businesses; no unfavourable changes in environmental regulation; continued use of U.S. GAAP; a stable regulatory environment; no significant changes to the Company's current credit ratings; no unforeseen impacts of new accounting pronouncements; no changes to expectations regarding electricity consumption; no unforeseen changes to economic and market conditions; completion of operating and capital projects that have been deferred; and no significant event occurring outside the ordinary course of business. These assumptions are based on information currently available to the Company, including information obtained from third-party sources. Actual results may differ materially from those predicted by such forward-looking statements. While Hydro One does not know what impact any of these differences may have, the Company's business, results of operations, financial condition and credit stability may be materially adversely affected if any such differences occur. Factors that could cause actual results or outcomes to differ materially from the results expressed or implied by forward-looking statements include, among other things:

• regulatory risks and risks relating to Hydro One's revenues, including risks relating to actual performance against forecasts, competition with other transmitters and other applications to the OEB, the rate-setting models for transmission and distribution, the recoverability of capital expenditures, obtaining rate orders or recoverability of total compensation costs;

• risks associated with the Province's share ownership of Hydro One Limited and other relationships with the Province, including potential conflicts of interest that may arise between Hydro One, the Province and related parties, risks associated with the Province's exercise of further legislative and regulatory powers, risks relating to the ability of the Company to attract and retain qualified executive talent or the risk of a credit rating downgrade for the Company and its impact on the Company's funding and liquidity;

• risks relating to the location of the Company's assets on Reserve lands, that the Company's operations and activities may give rise to the Crown's duty to consult and potentially accommodate Indigenous communities, and the risk that Hydro One may incur significant costs associated with transferring assets located on Reserves;

• the risk that the Company may be unable to comply with regulatory and legislative requirements or that the Company may incur additional costs for compliance that are not recoverable through rates;

• the risk of exposure of the Company's facilities to the effects of severe weather conditions, natural disasters, man-made events or other unexpected occurrences for which the Company is uninsured or for which the Company could be subject to claims for damage;

• risks associated with information system security and maintaining complex information technology and operational technology (OT) system infrastructure, including system failures or risks of cyber-attacks or unauthorized access to corporate information technology and OT systems;

---

| | |
|:---|:---|
| 18 | ![hydroonelogo3a.jpg](hydroonelogo3a.jpg) |

---

------

**HYDRO ONE INC.**

**MANAGEMENT'S DISCUSSION AND ANALYSIS (continued)**

**For the three and six months ended June 30, 2025 and 2024**

• the risk of non-compliance with environmental regulations and inability to recover environmental expenditures in rate applications and the risk that assumptions that form the basis of the Company's recorded environmental liabilities and related regulatory assets may change;

• the risk of labour disputes and inability to negotiate or renew appropriate collective agreements on acceptable terms consistent with the Company's rate decisions;

• the risk that the Company may not be able to execute plans for capital projects necessary to maintain the performance of the Company's assets or to carry out projects in a timely manner or the risk of increased competition for the development of large transmission projects or legislative changes affecting the selection of transmitters;

• risks associated with asset condition, capital projects and innovation, including public opposition to or delays or denials of the requisite approvals and accommodations for the Company's planned projects;

• risks related to the Company's work force demographic and its potential inability to attract and retain qualified personnel;

• the risk that the Company is not able to arrange sufficient cost-effective financing to repay maturing debt and to fund capital expenditures, the risk of a downgrade in the Company's credit ratings or risks associated with investor interest in ESG performance and reporting;

• risks associated with fluctuations in interest rates and failure to manage exposure to credit and financial instrument risk;

• risks associated with economic uncertainty and financial market volatility;

• the risk of failure to mitigate significant health and safety risks;

• the risk of not being able to recover the Company's pension expenditures in future rates and uncertainty regarding the future regulatory treatment of pension, other post-employment benefits and post-retirement benefits costs;

• the impact of the ownership by the Province of lands underlying the Company's transmission system;

• the risk associated with legal proceedings that could be costly, time-consuming or divert the attention of management and key personnel from the Company's business operations;

• the impact if the Company does not have valid occupational rights on third-party owned or controlled lands and the risks associated with occupational rights of the Company that may be subject to expiry;

• risks relating to adverse reputational events or political actions relating to Hydro One and the electricity industry;

• the potential that Hydro One may incur significant expenses to replace functions currently outsourced if agreements are terminated or expire before a new service provider is selected;

• risks relating to acquisitions, including the failure to realize the anticipated benefits of such transactions at all, or within the time periods anticipated, and unexpected costs incurred in relation thereto;

• risks relating to an outbreak of infectious disease;

• the inability to continue to prepare financial statements using U.S. GAAP; and

• the risk related to the impact of any new accounting pronouncements.

Hydro One cautions the reader that the above list of factors is not exhaustive. Some of these and other factors are discussed in more detail in the section entitled "Risk Management and Risk Factors" in this MD&A.

In addition, Hydro One cautions the reader that information provided in this MD&A regarding the Company's outlook on certain matters, including potential future investments, is provided in order to give context to the nature of some of the Company's future plans and may not be appropriate for other purposes.

Additional information about Hydro One, including the Company's Annual Information Form, is available on SEDAR+ at <u>www.sedarplus.com</u>, the US Securities and Exchange Commission's EDGAR website at <u>www.sec.gov/edgar.shtml</u>, and the Company's website at <u>www.HydroOne.com/Investors</u>.

---

| | |
|:---|:---|
| 19 | ![hydroonelogo3a.jpg](hydroonelogo3a.jpg) |

---

## Exhibit 99.3

**FORM 52-109F2**

**CERTIFICATION OF INTERIM FILINGS – FULL CERTIFICATE**

I, David Lebeter, President and Chief Executive Officer, Hydro One Inc., certify the following:

1.*Review:* I have reviewed the interim financial report and interim MD&A (together, the "interim filings") of Hydro One Inc. (the "issuer") for the interim period ended June 30, 2025.

2.*No misrepresentations:* Based on my knowledge, having exercised reasonable diligence, the interim filings do not contain any untrue statement of a material fact or omit to state a material fact required to be stated or that is necessary to make a statement not misleading in light of the circumstances under which it was made, with respect to the period covered by the interim filings.

3.*Fair presentation:* Based on my knowledge, having exercised reasonable diligence, the interim financial report together with the other financial information included in the interim filings fairly present in all material respects the financial condition, financial performance and cash flows of the issuer, as of the date of and for the periods presented in the interim filings.

4.*Responsibility:* The issuer's other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (DC&P) and internal control over financial reporting (ICFR), as those terms are defined in National Instrument 52-109 *Certification of Disclosure in Issuers' Annual and Interim Filings*, for the issuer.

5.*Design:* Subject to the limitations, if any, described in paragraphs 5.2 and 5.3, the issuer's other certifying officer(s) and I have, as at the end of the period covered by the interim filings

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;a.designed DC&P, or caused it to be designed under our supervision, to provide reasonable assurance that

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(i)material information relating to the issuer is made known to us by others, particularly during the period in which the interim filings are being prepared; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(ii)information required to be disclosed by the issuer in its annual filings, interim filings or other reports filed or submitted by it under securities legislation is recorded, processed, summarized and reported within the time periods specified in securities legislation; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b)&nbsp;&nbsp;&nbsp;&nbsp;designed ICFR, or caused it to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with the issuer's GAAP.

5.1&nbsp;&nbsp;&nbsp;&nbsp;*Control framework:* The control framework the issuer's other certifying officer(s) and I used to design the issuer's ICFR is the Internal Control – Integrated Framework (2013), issued by the Committee of Sponsoring Organizations of the Treadway Commission.

5.2&nbsp;&nbsp;&nbsp;&nbsp;N/A

5.3&nbsp;&nbsp;&nbsp;&nbsp;N/A

6.&nbsp;&nbsp;&nbsp;&nbsp;*Reporting changes in ICFR:* The issuer has disclosed in its interim MD&A any change in the issuer's ICFR that occurred during the period beginning on April 1, 2025 and ended on June 30, 2025 that has materially affected, or is reasonably likely to materially affect, the issuer's ICFR.

---

| | |
|:---|:---|
| Date: | August 13, 2025 |
| | /s/ David Lebeter |
| | President and Chief Executive Officer |

---

## Exhibit 99.4

**FORM 52-109F2**

**CERTIFICATION OF INTERIM FILINGS – FULL CERTIFICATE**

I, Harry Taylor, Executive Vice President, Chief Financial and Regulatory Officer, Hydro One Inc., certify the following:

1.*Review:* I have reviewed the interim financial report and interim MD&A (together, the "interim filings") of Hydro One Inc. (the "issuer") for the interim period ended June 30, 2025.

2.*No misrepresentations:* Based on my knowledge, having exercised reasonable diligence, the interim filings do not contain any untrue statement of a material fact or omit to state a material fact required to be stated or that is necessary to make a statement not misleading in light of the circumstances under which it was made, with respect to the period covered by the interim filings.

3.*Fair presentation:* Based on my knowledge, having exercised reasonable diligence, the interim financial report together with the other financial information included in the interim filings fairly present in all material respects the financial condition, financial performance and cash flows of the issuer, as of the date of and for the periods presented in the interim filings.

4.*Responsibility:* The issuer's other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (DC&P) and internal control over financial reporting (ICFR), as those terms are defined in National Instrument 52-109 *Certification of Disclosure in Issuers' Annual and Interim Filings*, for the issuer.

5.*Design:* Subject to the limitations, if any, described in paragraphs 5.2 and 5.3, the issuer's other certifying officer(s) and I have, as at the end of the period covered by the interim filings

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;a.designed DC&P, or caused it to be designed under our supervision, to provide reasonable assurance that

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(i)material information relating to the issuer is made known to us by others, particularly during the period in which the interim filings are being prepared; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(ii)information required to be disclosed by the issuer in its annual filings, interim filings or other reports filed or submitted by it under securities legislation is recorded, processed, summarized and reported within the time periods specified in securities legislation; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b)&nbsp;&nbsp;&nbsp;&nbsp;designed ICFR, or caused it to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with the issuer's GAAP.

5.1&nbsp;&nbsp;&nbsp;&nbsp;*Control framework:* The control framework the issuer's other certifying officer(s) and I used to design the issuer's ICFR is the Internal Control – Integrated Framework (2013), issued by the Committee of Sponsoring Organizations of the Treadway Commission.

5.2&nbsp;&nbsp;&nbsp;&nbsp;N/A

5.3&nbsp;&nbsp;&nbsp;&nbsp;N/A

6.&nbsp;&nbsp;&nbsp;&nbsp;*Reporting changes in ICFR:* The issuer has disclosed in its interim MD&A any change in the issuer's ICFR that occurred during the period beginning on April 1, 2025 and ended on June 30, 2025 that has materially affected, or is reasonably likely to materially affect, the issuer's ICFR.

---

| | |
|:---|:---|
| Date: | August 13, 2025 |
| | /s/ Harry Taylor |
| | Executive Vice President, Chief Financial and Regulatory Officer |

---

<br>