Ex-99.906 CERTIFICATION PURSUANT TO RULE 30A-2(B) UNDER THE 1940 ACT AND SECTION 906 OF THE SARBANES-OXLEY ACT I, Edward J. Roach, President & Treasurer of Chestnut Street Exchange Fund (the "Registrant"), certify that: 1. The Registrant's periodic report on Form N-CSR for the period ended December 31, 2004 (the "Report") fully complies with the requirements of Section 15(d) of the Securities Exchange Act of 1934, as amended; and 2. The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Registrant. Date: March 7, 2005 /s/ Edward J. Roach ------------------- -------------------------------------- Edward J. Roach, President & Treasurer (principal executive officer & principal financial officer) The certification is being furnished to the Securities and Exchange Commission pursuant to Rule 30(a)-2(b) under the Investment Company Act of 1940, as amended, and 18 U.S.C. Section 1350 and is not being filed as part of the report with the Commission.