Government Properties Income Trust (NYSE: GOV) today announced that it commenced a public offering of 7,000,000 common shares. GOV expects to use the net proceeds of this offering to repay amounts outstanding under its revolving credit facility and for general business purposes, including funding potential acquisitions. It is contemplated that the underwriters will also be granted a 30-day option to purchase up to an additional 1,050,000 common shares. The joint bookrunning managers for this offering are Morgan Stanley, BofA Merrill Lynch and RBC Capital Markets. The co-lead managers for this offering are Citigroup, Jefferies and UBS Investment Bank. This press release is neither an offer to sell nor a solicitation of an offer to buy shares, nor shall there be any sale of these securities in any state or jurisdiction in which the offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of such state or jurisdiction. The preliminary prospectus supplement relating to this offering and related prospectus are expected to be filed with the Securities and Exchange Commission (SEC), and copies can be obtained by contacting the offices of: Morgan Stanley, 180 Varick Street, 2nd Floor, New York, New York 10014, Attention: Prospectus Department, telephone: (866) 718-1649 or email: firstname.lastname@example.org; BofA Merrill Lynch, 222 Broadway, New York, New York 10038, Attn: Prospectus Department, email: email@example.com; or RBC Capital Markets, Attention: Prospectus Department, Three World Financial Center, 200 Vesey Street, 8th floor, New York, New York 10281-8098, telephone: 877-822-4089. WARNING CONCERNING FORWARD LOOKING STATEMENTS THIS PRESS RELEASE CONTAINS FORWARD LOOKING STATEMENTS WITHIN THE MEANING OF THE PRIVATE SECURITIES LITIGATION REFORM ACT OF 1995 AND OTHER SECURITIES LAWS. THESE FORWARD LOOKING STATEMENTS ARE BASED UPON GOV’S PRESENT BELIEFS AND EXPECTATIONS, BUT THESE STATEMENTS ARE NOT GUARANTEED. FOR EXAMPLE, ALTHOUGH THIS PRESS RELEASE REFERS TO AN OFFERING OF 7,000,000 COMMON SHARES, GREATER OR FEWER THAN 7,000,000 COMMON SHARES MAY BE SOLD, OR THIS OFFERING MAY BE WITHDRAWN. INVESTORS SHOULD NOT PLACE UNDUE RELIANCE UPON ANY FORWARD LOOKING STATEMENT.