TCI and 3G Capital Send Letter to CSX Shareholders

Business Wire, June 13, 2008

Please complete, sign, date and promptly mail the enclosed BLUE proxy card, using the postage-paid return envelope provided. If you have already returned your BLUE proxy card, you needn't take any further action. However, if you previously have returned the board's white proxy card, you have every right to change your vote by completing, signing and returning the BLUE proxy card today. If you have any questions or need assistance in voting your shares, please call D. F. King & Co., Inc., which is assisting TCI and 3G with the solicitation of proxies from CSX shareholders, toll-free at 1-800-967-7635.

Thank you for your consideration. We sincerely appreciate your support.

Very truly yours,      <  <  <  <




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/s/ Chris Hohn         <  <  <  <



/s/ Alex Behring
Chris Hohn             <  <  <  <



Alex Behring
Managing Partner, TCI  <  <  <  <



Managing Director, 3G Capital

About TCI

TCI is a London-based asset manager founded in 2003 which manages The Children's Investment Master Fund. TCI makes long-term investments in companies globally. The management company is authorized and regulated in the United Kingdom by the Financial Services Authority. The majority of TCI's profits go to The Children's Investment Fund Foundation, a non-profit organization focused on improving the lives of children living in poverty in developing countries.

About 3G

3G manages a private investment fund that invests in global equities and special situations. 3G Fund L.P. leverages its deep industry and operating expertise in different sectors to identify attractive, long-duration investment opportunities.

THIS PRESS RELEASE IS FOR GENERAL INFORMATIONAL PURPOSES ONLY. IT DOES NOT HAVE REGARD TO THE SPECIFIC INVESTMENT OBJECTIVE, FINANCIAL SITUATION, SUITABILITY, OR THE PARTICULAR NEED OF ANY SPECIFIC PERSON WHO MAY RECEIVE THIS PRESS RELEASE, AND SHOULD NOT BE TAKEN AS ADVICE ON THE MERITS OF ANY INVESTMENT DECISION. THE VIEWS EXPRESSED HEREIN REPRESENT THE OPINIONS OF THE CHILDREN'S INVESTMENT FUND MANAGEMENT (UK) LLP, THE CHILDREN'S INVESTMENT FUND MANAGEMENT (CAYMAN) LTD., THE CHILDREN'S INVESTMENT MASTER FUND, 3G CAPITAL PARTNERS LTD., 3G CAPITAL PARTNERS, L.P., 3G FUND L.P., CHRISTOPHER HOHN, ALEXANDRE BEHRING, GILBERT LAMPHERE, TIMOTHY O'TOOLE AND GARY WILSON (COLLECTIVELY, THE "PARTICIPANTS"), AND ARE BASED ON PUBLICLY AVAILABLE INFORMATION WITH RESPECT TO CSX CORPORATION .

EXCEPT FOR THE HISTORICAL INFORMATION CONTAINED HEREIN, THE MATTERS ADDRESSED IN THIS PRESS RELEASE ARE FORWARD-LOOKING STATEMENTS THAT INVOLVE CERTAIN RISKS AND UNCERTAINTIES. YOU SHOULD BE AWARE THAT ACTUAL RESULTS COULD DIFFER MATERIALLY FROM THOSE CONTAINED IN THE FORWARD-LOOKING STATEMENTS. THE PARTICIPANTS ASSUME NO OBLIGATION TO UPDATE THE FORWARD-LOOKING INFORMATION.

THE PARTICIPANTS RESERVE THE RIGHT TO CHANGE ANY OF THEIR OPINIONS EXPRESSED HEREIN AT ANY TIME AS THEY DEEM APPROPRIATE. THE PARTICIPANTS DISCLAIM ANY OBLIGATION TO UPDATE THE INFORMATION CONTAINED HEREIN.