Aben Gold Corp. — AGM Information 2021

Mar 12, 2021

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NOTICE OF ANNUAL AND SPECIAL MEETING OF SHAREHOLDERS

NOTICE IS HEREBY GIVEN that an annual and special meeting (the " Meeting ") of the shareholders of Colliers International Group Inc. (" Colliers ") will be held virtually on April 14, 2021, at 11:00 a.m. (Toronto time) for the following purposes:

1. to receive the audited consolidated financial statements of Colliers for the year ended December 31, 2020 and the report of the auditors' thereon;

2. to appoint PricewaterhouseCoopers LLP as independent auditors of Colliers and to authorize the directors to fix their remuneration;

3. to elect the directors of Colliers for the ensuing year;

4. to consider and, if deemed advisable, to pass, with or without variation, an ordinary resolution approving an amendment to the Colliers stock option plan to increase the maximum number of subordinate voting shares reserved for issuance pursuant to the exercise of stock options granted thereunder, all as more particularly set forth and described in the Management Information Circular (the " Circular ") accompanying this notice;

5. to consider and, if deemed advisable, pass a non-binding advisory resolution on Colliers' approach to executive compensation;

6. for holders of subordinate voting shares of Colliers to consider and, if deemed advisable, approve a resolution (the " Transaction Resolution "), the full text of which is set out in Appendix A to the accompanying Circular, approving a transaction (the " Transaction ") pursuant to which Colliers will terminate the restated management services agreement (including the Long Term Arrangement) with Colliers' Chief Executive Officer and Chairman, Jay S. Hennick, and entities controlled by Mr. Hennick and eliminate Colliers' multiple voting shares by not later than September 1, 2028, all as more particularly set forth and described in the accompanying Circular; and

7. to transact such further or other business as may properly come before the Meeting or any adjournment(s) or postponement(s) thereof.

The board of directors of Colliers has fixed the close of business on Tuesday, March 9, 2021 as the record date for determining shareholders of record who are entitled to receive notice of the Meeting and to attend and vote at the Meeting, or at any adjournment(s) or postponement(s) thereof.

In light of the restrictions and guidelines related to COVID-19, Colliers will be holding the Meeting virtually this year. Registered shareholders and duly appointed proxyholders will have the opportunity to attend the meeting online, submit questions, and vote in real time through a web-

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based platform instead of attending the meeting in person. Non-registered or beneficial shareholders who have not appointed themselves as proxyholder will be able to attend the meeting as guests, but will not be able to vote or ask questions. Shareholders will not be able to attend the meeting in person. Colliers encourages all shareholders to vote in advance of the Meeting by proxy. Please see the section entitled "Virtual Meeting" on page 2 of the Circular for detailed instructions on how to attend and participate at the meeting.

• In order to attend the Meeting virtually, shareholders are required to log in to https://virtual meetings.tsxtrust.com/1083 at least fifteen (15) minutes prior to the start of the Meeting. Once logged in, registered shareholders will be required to provide the password (colliers2021) and their control number to vote at the Meeting. Alternatively, shareholders can take steps to submit their votes by proxy by following the instructions below and as further set out in the accompanying Circular.

If you are a registered shareholder and are unable to attend the Meeting virtually, please complete, sign, date and return the enclosed form of proxy to TSX Trust Company, 301-100 Adelaide Street West, Toronto, Ontario M5H 4H1, or by facsimile to 416-595-9593, or complete the form of proxy by such other method as is identified, and pursuant to any instructions contained, in the form of proxy. In order to be valid for use at the Meeting, proxies must be received not less than 48 hours (excluding Saturdays, Sundays and holidays) prior to the Meeting or any adjournment(s) or postponement(s) thereof.

If you are a non-registered shareholder and receive these materials through your broker or through another intermediary, please complete and return the materials in accordance with the instructions provided to you by your broker or such other intermediary. If you are a non-registered shareholder and do not complete and return the materials in accordance with such instructions, you may lose the right to vote at the Meeting.

Further information with respect to voting by proxy is included in the accompanying Circular. Any questions regarding the Meeting or voting your shares can be directed to our strategic shareholder advisor and proxy solicitation agent Kingsdale Advisors at 1-866-229-8651, or collect call outside North America at 416-867-2272, or by e-mail at contactus@kingsdaleadvisors.com.

DATED at Toronto, Ontario this 9th day of March, 2021.

By Order of the Board of Directors

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Matthew Hawkins

Vice President, Legal Counsel and Corporate Secretary