An anonymous director reports

SLATE OFFICE REIT ACKNOWLEDGES RESIGNATION OF TRUSTEE

Slate Office REIT has received notice from current trustee Jean-Charles Angers that he is declining to stand for re-election to the REIT's board of trustees at its coming annual meeting of unitholders scheduled to be held on May 3, 2024 (including any postponement or adjournment thereof), and has tendered his resignation from the board, effective as of the time of the meeting.

The withdrawal of Mr. Angers will not affect the validity of the white form of proxy or voting instruction form previously delivered to unitholders in connection with the meeting, nor any proxy votes already submitted in respect of the other trustee nominees or in respect of the other resolutions to be put to unitholders for approval at the meeting. Management will not be issuing a new form of proxy or voting instruction form to reflect the change to the slate of nominees. The REIT will disregard any votes cast for or withheld in respect of the election of Mr. Angers as a trustee of the REIT at the meeting.

A copy of the REIT's management information circular dated March 20, 2024 (as amended or supplemented), and accompanying proxy for the meeting continues to be available under the REIT's issuer profile on SEDAR+ and on the REIT's website.

About Slate Office REIT

Slate Office is a global owner and operator of high-quality workplace real estate. The REIT owns interests in and operates a portfolio of strategic and well-located real estate assets in North America and Europe. The majority of the REIT's portfolio comprises government and high-quality credit tenants. The REIT acquires quality assets at a discount to replacement cost and creates value for unitholders by applying hands-on asset management strategies to grow rental revenue, extend lease term and increase occupancy.

We seek Safe Harbor.