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| Forward-Looking Information and Disclaimers Important Information For Investors And Shareholders This communication does not constitute an offer to sell or the solicitation of an offer to buy any securities or a solicitation of any vote or approval. In connection with the transactions referred to in this communication, Chambers Street Properties (“Chambers Street”) expects to file a registration statement on Form S-4 with the Securities and Exchange Commission (“SEC”) containing a preliminary joint proxy statement of Chambers Street and Gramercy Property Trust Inc. (“Gramercy”) that also constitutes a preliminary prospectus of Chambers Street. After the registration statement is declared effective, Chambers Street and Gramercy will mail a definitive proxy statement/prospectus to stockholders of Gramercy and shareholders of Chambers Street. This communication is not a substitute for the joint proxy statement/prospectus or registration statement or for any other document that Chambers Street or Gramercy may file with the SEC and send to Chambers Street’s shareholders and/or Gramercy’s stockholders in connection with the proposed transactions. INVESTORS AND SECURITY HOLDERS OF CHAMBERS STREET AND GRAMERCY ARE URGED TO READ THE PROXY STATEMENT/PROSPECTUS AND OTHER DOCUMENTS FILED WITH THE SEC CAREFULLY AND IN THEIR ENTIRETY WHEN THEY BECOME AVAILABLE BECAUSE THEY WILL CONTAIN IMPORTANT INFORMATION. Investors and security holders will be able to obtain free copies of the proxy statement/prospectus (when available) and other documents filed by Chambers Street and Gramercy with the SEC through the website maintained by the SEC at http://www.sec.gov. Copies of the documents filed by Gramercy with the SEC will be available free of charge on Gramercy’s website at www.gptreit.com, or by contacting Gramercy’s Investor Relations Department at (212) 297-1000. Copies of the documents filed by Chambers Street with the SEC will be available free of charge on Chambers Street’s website at www.chamberstreet.com or by contacting Chambers Street’s Investor Relations Department at 609-806-2682.Chambers Street and Gramercy and their respective trustees/directors and certain of their respective executive officers may be considered participants in the solicitation of proxies with respect to the proposed transactions under the rules of the SEC. Information about the trustees and executive officers of Chambers Street is set forth in its Annual Report on Form 10-K for the year ended December 31, 2014, which was filed with the SEC on March 2, 2015, and the amendments thereto on Form 10-K/A, which were filed with the SEC on March 30, 2015 and April 30, 2015. These documents can be obtained free of charge from the sources indicated above. Information about the directors and executive officers of Gramercy is set forth in its Annual Report on Form 10-K for the year ended December 31, 2014, which was filed with the SEC on March 9, 2015, its proxy statement for its 2015 annual meeting of stockholders, which was filed with the SEC on May 11, 2015 and other filings filed with the SEC. Additional information regarding the participants in the proxy solicitations and a description of their direct and indirect interests, by security holdings or otherwise, will also be included in any proxy statement and other relevant materials to be filed with the SEC when they become available. Chambers Street and Gramercy and their respective trustees/directors and certain of their respective executive officers may be considered participants in the solicitation of proxies with respect to the proposed transactions under the rules of the SEC. Information about the trustees and executive officers of Chambers Street is set forth in its Annual Report on Form 10-K for the year ended December 31, 2014, which was filed with the SEC on March 2, 2015, and the amendments thereto on Form 10-K/A, which were filed with the SEC on March 30, 2015 and April 30, 2015. These documents can be obtained free of charge from the sources indicated above. Information about the directors and executive officers of Gramercy is set forth in its Annual Report on Form 10-K for the year ended December 31, 2014, which was filed with the SEC on March 9, 2015, its proxy statement for its 2015 annual meeting of stockholders, which was filed with the SEC on May 11, 2015 and other filings filed with the SEC. Additional information regarding the participants in the proxy solicitations and a description of their direct and indirect interests, by security holdings or otherwise, will also be included in any proxy statement and other relevant materials to be filed with the SEC when they become available. Cautionary Statement Regarding Forward-Looking Statements Certain statements in this communication regarding the proposed transaction between Chambers Street and Gramercy, including any statements regarding the expected timetable for completing the transaction, benefits and synergies of the transaction, future opportunities for the respective companies and products, and any other statements regarding Chambers Street’s and Gramercy’s future expectations, beliefs, plans, objectives, financial conditions, assumptions or future events or performance that are not historical facts are “forward-looking” statements made within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. These statements are often, but not always, made through the use of words or phrases such as “believe,” “expect,” “anticipate,” “should,” “planned,” “will,” “may,” “intend,” “estimated,” “aim,” “on track,” “target,” “opportunity,” “tentative,” “positioning,” “designed,” “create,” “predict,” “project,” “seek,” “would,” “could”, “potential,” “continue,” “ongoing,” “upside,” “increases,” and “potential,” and similar expressions. All such forward-looking statements involve estimates and assumptions that are subject to risks, uncertainties and other factors that could cause actual results to differ materially from the results expressed in the statements. Although we believe the expectations reflected in any forward-looking statements are based on reasonable assumptions, we can give no assurance that our expectations will be attained and therefore, actual outcomes and results may differ materially from what is expressed or forecasted in such forward-looking statements. Some of the factors that may affect outcomes and results include, but are not limited to: (i) risks associated with the parties’ ability to obtain the required shareholder/stockholder approvals or other third-party approvals required to consummate the merger and the timing of the closing of the merger, including the risks that a condition to closing would not be satisfied or that the closing of the merger will not occur, (ii) the outcome of any legal proceedings that may be instituted against the parties' and others related to the merger agreement, (iii) changes in financial markets, interest rates and foreign currency exchange rates, (iv) increased or unanticipated competition for our properties, (v) risks associated with acquisitions, (vi) maintenance of real estate investment trust (“REIT”) status, (vii) availability of financing and capital, (viii) changes in demand for developed properties, (ix) risks associated with achieving expected revenue synergies or cost savings, (x) national, international, regional and local economic climates, and (xi) those additional risks and factors discussed in reports filed with the SEC by Chambers Street and Gramercy from time to time, including those discussed under the heading “Risk Factors” in their respective most recently filed reports on Form 10-K and 10-Q. Non-GAAP Financial Measures CSG and GPT have used non-GAAP financial measures as defined by SEC Regulation G in this presentation. Fund from operations (“FFO”): The revised White Paper on FFO approved by the Board of Governors of the National Association of Real Estate Investment Trusts, or NAREIT, defines FFO as net income (loss) (determined in accordance with GAAP), excluding impairment write-downs of investments in depreciable real estate and investments in in-substance real estate investments, gains or losses from debt restructurings and sales of depreciable operating properties, plus real estate-related depreciation and amortization (excluding amortization of deferred financing costs), less distributions to non-controlling interests and gains/losses from discontinued operations and after adjustments for unconsolidated partnerships and joint ventures. Core FFO and adjusted funds from operations (“AFFO”): Core FFO and AFFO are non-GAAP financial measures that are presented excluding property acquisition costs, discontinued operations, other-than-temporary impairments on retained bonds, and other one-time charges. AFFO of CSG and GPT also excludes non-cash stock-based compensation expense, amortization of above and below market leases, amortization of deferred financing costs, amortization of lease inducement costs, non-real estate depreciation and amortization, amortization of free rent received at property acquisition, and straight-line rent. CSG and GPT believes that Core FFO and AFFO are useful supplemental measures regarding CSG and GPT’s operating performances as they provide a more meaningful and consistent comparison of CSG and GPT’s operating performance and allows investors to more easily compare CSG and GPT’s operating results. Net operating income (“NOI”) is a non-GAAP financial measure that represents property revenues on a straight-line basis minus property expenses before interest and capital reserves/expenditures. Capitalization rate (“Cap Rate”) is a rate of return on a real estate investment property based on the expected, straight-lined income that the property will generate. Cap rate is used to estimate CSG and GPT’s potential return on its investment. This is done by dividing the income the property is expected to generate (before debt service and depreciation and after fixed costs and variable costs) by the acquisition price of the property. The Core FFO, AFFO, Run-Rate FFO, NOI and Cap Rate assumptions included in this presentation reflects CSG and GPT's assumptions and expectations and are not guarantees of its future performance. CSG and GPT's actual results may vary materially from the assumptions presented in this presentation. The results that an investor in CSG and GPT will actually receive will depend, to a significant degree, on the actual performance of CSG and GPT's assets, which may be impacted by material economic and market risk factors. 22 |