An anonymous director reports

HYDRO ONE SECOND QUARTER 2023 RESULTS RELEASE AUGUST 9, 2023 BEFORE MARKETS OPEN

Hydro One Ltd. plans to release its second quarter financial results the morning of Aug. 9, 2023, before North American financial markets open. The complete MD&A (management's discussion and analysis) and financial statements will be posted at the company's website and on SEDAR.

Hydro One's management will host a teleconference with the investment community at 8 a.m. ET that same morning to discuss the results and outlook. Those wishing to listen to the teleconference should access the live webcast on the investor relations events and presentations section of Hydro One's website. A rebroadcast of the teleconference will be available following the call.

Those members of the North American financial community wanting to ask questions during the call should go on-line, and you will be provided with personalized dial-in details. To avoid delays, the company encourages participants to dial into the conference call 15 minutes ahead of the scheduled start time. Other interested parties and media are welcome to participate on a listen-only basis.

About Hydro One Ltd.

Hydro One, through its wholly owned subsidiaries, is Ontario's largest electricity transmission and distribution provider with approximately 1.5 million valued customers, approximately $31.5-billion in assets as at Dec. 31, 2022, and annual revenues in 2022 of approximately $7.8-billion.

The company's team of approximately 9,300 skilled and dedicated employees proudly build and maintain a safe and reliable electricity system which is essential to supporting strong and successful communities. In 2022, Hydro One invested approximately $2.1-billion in its transmission and distribution networks, and supported the economy through buying approximately $1.9-billion of goods and services.