Citigroup Inc.

Stockholder InformationCitigroup common stock is listed on the NYSE under the ticker symbol “C”and on the Tokyo Stock Exchange and the Mexico Stock Exchange. Citigrouppreferred stock Series F, T and AA are also listed on the NYSE.Because Citigroup’s common stock is listed on the NYSE, the ChiefExecutive Officer is required to make an annual certification to the NYSEstating that he was not aware of any violation by Citigroup of the corporategovernance listing standards of the NYSE. The annual certification to thateffect was made to the NYSE on May 19, 2010.As of January 31, 2011, Citigroup had approximately 191,500 commonstockholders of record. This figure does not represent the actual number ofbeneficial owners of common stock because shares are frequently held in“street name” by securities dealers and others for the benefit of individualowners who may vote the shares.Transfer AgentStockholder address changes and inquiries regarding stock transfers,dividend replacement, 1099-DIV reporting, and lost securities for commonand preferred stocks should be directed to:ComputershareP.O. Box 43078Providence, RI 02940-3078Telephone No. 781 575 4555Toll-free No. 888 250 3985Facsimile No. 201 324 3284E-mail address: shareholder@computershare.comWeb address: www.computershare.com/investorExchange AgentHolders of Golden State Bancorp, Associates First Capital Corporation,Citicorp or Salomon Inc. common stock, Citigroup Inc. Preferred Stock SeriesK, Q, S, T or U, or Salomon Inc. Preferred Stock Series D should arrange toexchange their certificates by contacting:ComputershareP.O. Box 43078Providence, RI 02940-3078Telephone No. 781 575 4555Toll-free No. 888 250 3985Facsimile No. 201 324 3284E-mail address: shareholder@computershare.comWeb address: www.computershare.com/investorCiti’s 2010 Form 10-K filed with the SEC, as well as other annual andquarterly reports, are available from Citi Document Services toll free at 877936 2737 (outside the United States at 716 730 8055), by e-mailing a requestto docserve@citi.com, or by writing to:Citi Document Services540 Crosspoint ParkwayGetzville, NY 14068306