Columbia Property Trust, Inc. (NYSE: CXP) plans to release its quarterly results for the period ending March 31, 2018 after the market closes on Thursday, April 26, 2018. The Company will broadcast a live conference call and audio webcast later that day at 5:00 p.m. ET. Live Webcast: Go to the Investor Relations section of Columbia's website, http://ir.columbia.reit, at least fifteen minutes prior to the start time of the call in order to register and to download and install any necessary audio software. Interactive Teleconference: (412) 542-4180 (U.S. and international) - ask to join the Columbia Property Trust (CXP) Call. A replay of the conference call will be available online in the Investor Relations section of the Company's website at www.columbia.reit shortly after the call and archived for approximately twelve months. The audio will also be available by telephone through May 3, 2018, by dialing (877) 344-7529 (passcode: 10118156). About Columbia Property TrustColumbia Property Trust (NYSE: CXP) owns and operates Class-A office buildings concentrated in New York, San Francisco, and Washington, D.C. Its portfolio includes 19 operating properties with over nine million square feet, as well as one property under redevelopment. Columbia carries an investment-grade rating from both Moody's and Standard & Poor's. For more information, please visit www.columbia.reit.