Investor Presentaiton

RECENT COMPANY HIGHLIGHTS CITY OFFICE REIT SECOND QUARTER 2021 Core FFO per share of $0.35 and AFFO per share of $0.22 Dividend of $0.15 per share covered by AFFO Executed approximately 249,000 SF of new and renewal leases, including a 66,000 SF new lease described below Same store cash NOI growth of 2.7% for the quarter compared to the prior year Closed the acquisition of two properties in San Diego, CA for $43.3 million STRONG YEAR-OVER-YEAR RESULTS Metric Q2 2021 Q2 2020 Core FFO per Share $0.35 AFFO per Share $0.22 $0.29 $0.14 Leasing Activity (000s) 249 SF 326 SF Same Store Cash NOI Growth 2.7% 2.3% (1) Net Debt/EBITDA 6.2x 6.7x Weighted Average Interest Rate (1) 3.6% 3.7% Occupancy 89.7% 91.9% Weighted Avg Lease Term Remaining 4.3 yrs 4.2 yrs VALUE-ENHANCING LEASING AT PARK TOWER CIO executed an eight-year, 66,000 SF lease with a fin-tech tenant that is expected to commence in May 2022 New tenant replaces a 51,000 SF tenant whose lease continued through February 2025 but who was not utilizing the space after going through a merger CIO negotiated a termination fee of $5.4 million, representing 85% of the base rent and estimated reimbursement obligation that the tenant would have paid under the remainder of its lease (1) See the Company's Q2 2021 supplemental financial information for further discussion of debt metrics. Net Debt/EBITDA represents Net Debt including Restricted Cash/Annualized Adjusted EBITDA 10

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