Office Properties Income Trust Second Quarter 2023 Conference Call Scheduled for Thursday, July 27th

Office Properties Income Trust (Nasdaq: OPI) today announced that it will issue a press release containing its second quarter 2023 financial results after the Nasdaq closes on Wednesday, July 26, 2023. On Thursday, July 27, 2023 at 10:00 a.m. Eastern Time, President and Chief Operating Officer Christopher Bilotto and Chief Financial Officer and Treasurer Matthew Brown will host a conference call to discuss these results.

The conference call telephone number is [phone]. Participants calling from outside the United States and Canada should dial [phone]. No pass code is necessary to access the call from either number. Participants should dial in about 15 minutes prior to the scheduled start of the call. A replay of the conference call will be available through 11:59 p.m. on Thursday, August 3, 2023. To access the replay, dial [phone]. The replay pass code is 4046494.

A live audio webcast of the conference call will also be available in a listen-only mode on the company’s website, which is located at www.opireit.com. Participants wanting to access the webcast should visit the company’s website about five minutes before the call. The archived webcast will be available for replay on the company’s website after the call.

About Office Properties Income Trust

OPI is a national real estate investment trust focused on owning and leasing high quality office and mixed-use properties in select growth-oriented U.S. markets. As of March 31, 2023, approximately 63% of OPI's revenues were from investment grade rated tenants. OPI owned and leased 157 properties as of March 31, 2023, with approximately 20.9 million square feet located in 30 states and Washington, D.C. In 2023, OPI was named as an Energy Star® Partner of the Year for the sixth consecutive year. OPI is managed by The RMR Group (Nasdaq: RMR), a leading U.S. alternative asset management company with over $37 billion in assets under management as of March 31, 2023, and more than 35 years of institutional experience in buying, selling, financing and operating commercial real estate. OPI is headquartered in Newton, MA. For more information, visit opireit.com.

A Maryland Real Estate Investment Trust with transferable shares of beneficial interest listed on the Nasdaq. No shareholder, Trustee or officer is personally liable for any act or obligation of the Trust.

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Kevin Barry, Director, Investor Relations [phone] www.opireit.com