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    Investor Relations Contact

    Sarah Byrnes
    (312) 646-2801
    ir@eqcre.com

    Equity Commonwealth

    Two North Riverside Plaza
    Suite 2100
    Chicago, IL 60606

    Transfer Agent and Registrar

    For stock certificate questions,
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    EQ Shareowner Services

    1110 Centre Pointe Curve
    Suite 101
    Mendota Heights, MN 55120-4100
    1-855-235-0840
    www.shareowneronline.com

    Independent Auditors

    Ernst & Young LLP
    155 North Wacker Drive
    Chicago, IL 60606

    NYSE Designated Market Maker

    GTS
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    New York, NY 10005, USA