ADURO CLEAN TECHNOLOGIES INC.

Appointment of Proxy

Registered Shareholders are entitled to vote at the Meeting. Shareholders are entitled to one vote for each Share held on the record date of October 9, 2026 on the resolutions to be voted upon at the Meeting, and any other matter to come before the Meeting.

The persons named as proxyholders in the enclosed form of proxy (the "Designated Persons") are directors and/or officers of the Company.

A SHAREHOLDER HAS THE RIGHT TO APPOINT A PERSON OR COMPANY (WHO NEED NOT BE A SHAREHOLDER) OTHER THAN THE DESIGNATED PERSONS NAMED IN THE ENCLOSED FORM OF PROXY TO ATTEND AND ACT FOR OR ON BEHALF OF THAT SHAREHOLDER AT THE MEETING.

A SHAREHOLDER MAY EXERCISE THIS RIGHT BY INSERTING THE NAME OF SUCH OTHER PERSON IN THE BLANK SPACE PROVIDED ON THE FORM OF PROXY. SUCH SHAREHOLDER SHOULD NOTIFY THE NOMINEE OF THE APPOINTMENT, OBTAIN THE NOMINEE'S CONSENT TO ACT AS PROXY AND SHOULD PROVIDE INSTRUCTION TO THE NOMINEE ON HOW THE SHAREHOLDER'S SHARES SHOULD BE VOTED. THE NOMINEE SHOULD BRING PERSONAL IDENTIFICATION TO THE MEETING.

The Shareholder may vote by mail, by telephone or via the Internet by following instructions provided in the form of proxy at least 48 hours (excluding Saturdays, Sundays and holidays recognized in the Province of British Columbia) prior to the scheduled time of the Meeting, or any adjournment or postponement thereof. The Chairman of the Meeting, in his sole discretion, may accept completed forms of proxy on the day of the Meeting or any adjournment or postponement thereof.

A proxy may not be valid unless it is dated and signed by the Shareholder who is giving it or by that Shareholder's attorney-in-fact duly authorized by that Shareholder in writing or, in the case of a corporation, dated and executed by a duly authorized officer or attorney-in-fact for the corporation. If a form of proxy is executed by an attorney-in- fact for an individual Shareholder or joint Shareholders, or by an officer or attorney-in-fact for a corporate Shareholder, the instrument so empowering the officer or attorney-in-fact, as the case may be, or a notarially certified copy thereof, must accompany the form of proxy.