Summit Industrial Income REIT Files Preliminary Base Shelf Prospectus

TORONTO, April 19, 2017

Once a receipt for the final base shelf prospectus is obtained from the applicable securities regulators, the final base shelf prospectus will be valid for a 25-month period, during which time Summit may issue, from time-to-time, units, debt securities, subscription receipts, or any combination thereof, having an aggregate offering price of up to CDN$400 million.

The base shelf prospectus was filed to provide Summit with financial flexibility and efficient access to Canadian capital markets.

About Summit
Summit Industrial Income REIT is an unincorporated open-end trust focused on growing and managing a portfolio of light industrial properties across Canada. Summit's units are listed on the TSX and trade under the symbol SMU.UN. For more information, please visit our web site at www.summitIIreit.com.

Caution Regarding Forward Looking Information

This news release contains forward-looking statements and forward-looking information within the meaning of applicable securities laws. The use of any of the words "expect", "anticipate", "continue", "estimate", "objective", "ongoing", "may", "will", "project", "should", "believe", "plans", "intends", "goal" and similar expressions are intended to identify forward-looking information or statements. Forward-looking information may relate to future results, performance, achievements, events, prospects or opportunities for the REIT or the real estate industry, outlook and anticipated events or results. Some of the specific forward-looking statements contained herein include statements with respect to the following: the filing of the final base shelf prospectus and the REIT obtaining a receipt in respect thereof; and the purposes for which the REIT has filed the base shelf prospectus.

Forward-looking statements necessarily involve known and unknown risks and uncertainties, and there can be no assurance that actual results will be consistent with such forward-looking statements.