2021 Annual Meeting of Shareholders

Registered shareholders and duly appointed proxyholders will be able to attend and ask questions at the virtual meeting.

Registered shareholders and duly appointed proxyholders can also vote in real-time at the virtual meeting by completing a ballot online during the virtual meeting, provided that they complete the instructions outlined in this Q&A and our circular.

Guests and non-registered or beneficial shareholders who have not appointed themselves as a proxyholder will be able to listen to the meeting but will not be able to ask questions or vote.

• Login at: https://web.lumiagm.com/483912229
• Password: “tc2021” (case sensitive)

This link will open at 9 a.m. MDT on May 7, 2021.

Registered shareholders
If you hold your shares directly and have a share certificate in your name, you may attend the meeting by following the instructions below on the day of the meeting:

• Log in online at https://web.lumiagm.com/483912229 using a web browser on a smartphone, tablet or computer.
• Click "I have a login" and then enter your control number located on the form of proxy or in the email notification you received from Computershare, and password "tc2021" (case sensitive).

Non-registered shareholders
If you hold your shares beneficially through a broker, nominee or intermediary, you may attend the meeting by completing the following two steps by May 4, 2021:

1. Appoint yourself or another person attending the meeting as a duly appointed proxyholder, by following the instructions on page 12 of the circular.

2. Visit https://www.computershare.com/TCEnergyAGM to register to attend the meeting. To register, enter your account number located on your voting information form, your name and email address. After the proxy deadline, Computershare will send you or your proxyholder via email a username that will be required to log into the meeting.

On the day of the meeting:

• Log in online at https://web.lumiagm.com/483912229 using a web browser on a smartphone, tablet or computer.
• Click "I have a login" and then enter the four letter username provided to you or your proxyholder by Computershare, and password "tc2021" (case sensitive).

Please note that non-registered shareholders must complete steps 1 and 2 by May 4, 2021 in order to be able to vote at the meeting as a duly appointed proxyholder. In some cases, your intermediary may send you additional documentation that must also be completed in order for you to vote.  If you do not complete these steps by May 4, 2021, you may still attend the meeting as a guest.

Guests
If you are not a registered shareholder or a duly appointed proxyholder or if you are a non-registered shareholder and you have not appointed yourself as a proxyholder, you can still attend the meeting and listen by following the instructions below on the day of the meeting:

• Log in online at https://web.lumiagm.com/483912229 using a web browser on a smartphone, tablet or computer.
• Select "Guest" and complete the information requested in the form.

Registered shareholders – The 15-digit control number is located on the form of proxy or in the email notification you received from Computershare.

Duly appointed proxyholders – Computershare will provide the proxyholder with a username by email after the voting deadline has passed and the proxyholder has been duly appointed and registered as outlined in “How do I participate in the virtual meeting?” above.

Whether or not shareholders plan to attend the virtual meeting, they may still vote by submitting their proxy in advance of the meeting by one of the methods described in the circular and proxy materials previously distributed for the meeting. Please refer to the Voting section of the circular, beginning on page 10, for additional details on how to vote by proxy before the meeting and the matters to be voted upon.

During the formal business of the meeting, you will have the opportunity to ask questions about the items of business that are being presented to shareholders.

Our CEO will speak after the formal business is concluded. He will respond to general questions after his presentation.

Only the following attendees will be able to submit questions:

• registered shareholders,
• non-registered or beneficial shareholders who have appointed themselves proxyholder as outlined above, and
• other duly appointed proxyholders.

Guests will not be able to submit questions during the meeting.

To ask a question during the live question and answer session, type your question into the chat function. Additional instructions on how to ask questions will be provided during the meeting.

We encourage you to submit your questions in advance of the meeting to Investor Relations by emailing investor_relations@tcenergy.com.

Following the meeting, a webcast in English, including the live question and answer session, will be available for viewing on our website (www.tcenergy.com).

All meeting participants must use the latest versions of Chrome, Safari, Microsoft Edge, or Firefox. We recommend that you log in at least 30-60 minutes before the meeting starts as this will allow you to check compatibility and complete the related procedures required to log in to the meeting.

If you participate in the virtual meeting, it is important that you are connected to the internet at all times during the meeting. It is your responsibility to ensure connectivity for the duration of the virtual meeting. You should allow ample time to log into the virtual meeting and complete the related procedures.

If you experience technical difficulties logging into the meeting or during the meeting, please contact 1-403-920-2050 for assistance. This phone line will be open the morning of the meeting.