Office Properties Income Trust Announces Final Results of Private Exchange Offers Relating to Existing Unsecured Senior Notes

Exchange Settlement Date Scheduled for March 12, 2025

Office Properties Income Trust (NASDAQ:OPI) ("OPI") today announced the final results for the previously announced private exchange offers (as amended, the "Exchange Offers") to exchange its outstanding senior unsecured notes due 2026 (the "Existing 2026 Notes"), 2027 (the "Existing 2027 Notes") and 2031 (the "Existing 2031 Notes", and together with the Existing 2026 Notes and the Existing 2027 Notes, the "Existing Notes") for new 8.000% Senior Priority Guaranteed Unsecured Notes due 2030 (the "New Notes") and related guarantees pursuant to the terms and conditions set forth in an Offering Memorandum, dated as of February 7, 2025 (the "Offering Memorandum"), as supplemented by the supplement dated February 13, 2025 and as amended by OPI's press releases dated February 24, 2025 and March 3, 2025. OPI expects that the settlement date for the Exchange Offers on which it will deliver the New Notes to participating Eligible Holders, subject to the satisfaction or waiver of applicable conditions, will be March 12, 2025.

The following table sets forth (a) the aggregate principal amount of tendered Existing Notes accepted for exchange pursuant to the Exchange Offers and (b) the aggregate principal amount of New Notes that OPI expects to issue as consideration in each of the Exchange Offers.

No Registration; Eligible Holders

The offer and sale of the New Notes and related guarantees was not registered under the Securities Act of 1933, as amended (the "Securities Act"), or any state securities laws, and the New Notes and related guarantees will therefore be subject to restrictions on transferability and resale. OPI does not intend to register the sale of any of the New Notes and related guarantees under the Securities Act or the securities laws of any other jurisdiction and is not providing registration rights. The New Notes and related guarantees may not be offered or sold in the United States absent registration or an applicable exemption from registration requirements and may not be transferred by any holder except in accordance with the restrictions described under "Transfer Restrictions" in the Offering Memorandum. The Exchange Offers were made, and the New Notes and related guarantees are being offered and issued, only to holders who have certified to OPI that they are (a) in the U.S. and are "qualified institutional buyers" (as defined in Rule 144A under the Securities Act) and are holders of the Existing Notes, (b) outside the U.S. and are holders of the Existing Notes who are non-U.S. persons in reliance upon and in compliance with Regulation S under the Securities Act or (c) institutions and holders of the Existing Notes that can certify they are institutional "accredited investors" as defined in subparagraph (a)(1), (2), (3) or (7) of Rule 501 under the Securities Act (such holders, "Eligible Holders"). Only Eligible Holders were authorized to receive or review the Offering Memorandum or to participate in the Exchange Offers.

About Office Properties Income Trust

OPI is a national REIT focused on owning and leasing office properties to high credit quality tenants in markets throughout the United States. As of December 31, 2024, approximately 58% of OPI's revenues were from investment grade rated tenants. OPI owned 128 properties as of December 31, 2024, with approximately 17.8 million square feet located in 29 states and Washington, D.C. In 2024, OPI was named as an Energy Star® Partner of the Year for the seventh consecutive year. OPI is managed by The RMR Group (NASDAQ:RMR), a leading U.S. alternative asset management company with over $40 billion in assets under management as of December 31, 2024, and more than 35 years of institutional experience in buying, selling, financing and operating commercial real estate. OPI is headquartered in Newton, MA.

WARNING CONCERNING FORWARD-LOOKING STATEMENTS

Statements in this news release, including statements regarding the Exchange Offers constitute "forward-looking statements" that do not directly or exclusively relate to historical facts. When used in this release, the words "may," "will," "might," "should," "expect," "plan," "anticipate," "project," "believe," "estimate," "predict," "intend," "potential," "outlook," and "continue," and the negative of these terms, and other similar expressions are intended to identify forward-looking statements and information.

The forward-looking statements reflect OPI's intentions, plans, expectations, anticipations, projections, estimations, predictions, assumptions and beliefs about future events and are subject to risks, uncertainties and other factors, many of which are outside of OPI's control. Important factors that could cause actual results to differ materially from the expectations expressed or implied in the forward-looking statements include known and unknown risks. Known risks include, among others, market conditions and the risks described in OPI's annual reports on Form 10-K, quarterly reports on Form 10-Q, current reports on Form 8-K and amendments to those reports and risks and uncertainties related to OPI's ability to consummate the Exchange Offers.

You should not place undue reliance upon forward-looking statements. Except as required by law, OPI does not intend to update or change any forward-looking statements as a result of new information, future events or otherwise.

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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Questions regarding the Exchange Offers may be directed to:

Kevin Barry, Senior Director, Investor Relations

(617) 219-1410