Investor Presentaiton

2 Case Study: GTA Portfolio Acquisition In 1H23, the Managed REITs (1) acquired an eight-facility portfolio in the GTA for approximately CAD $300 million 758,000 rentable square feet 7,400 units The properties are Class-A facilities located in high- growth areas of the GTA with strong demographics ⚫ The acquisition makes SmartStop the fifth largest operator in Canada 758,000 Total Sq. Ft. Portfolio Highlights 7,400 Units 09 3 27 24 10 50 Vaughan 407 29 7 125 7 D 107 427 410 401 403 407 407 Mississauga 124 34 25 5 407 25 403 1 403 407 409 401 8 Toronto 56.1% Occupancy at Acquisition (2) ~26 Acres of Land 245,000 Average 3-mile Population USD $107,400 Average 3-mile Household Income 8 8 5 Hamilton 403 Burlington Mississauga, ONT (1) One property was acquired in January 2023 by Strategic Storage Trust VI, Inc. One property was acquired in June 2023 by Strategic Growth Trust III, Inc. Six properties were acquired in June 2023 by Strategic Storage Trust VI, Inc.. (2) Weighted average physical occupancy at the time of acquisitions, weighted by net rentable square feet. One property was acquired in January 2023. Seven were acquired in June 2023. rtStop SmartStop Self Storage ...The Smarter Way to Store!* 407 SmartStop Self Storage MANAGED OPERATING PROPERTIES (8) 55 18 Vaughan, ONT 401 Investor Presentation | 14

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