Document rkNBqr0j3awkZ0RDyoKnvgYG

March 2, 2007 Via Electronic and U.S. Mail Richard Irons, PhD, DABT Principal Investigator, Shanghai Health Study University of Colorado Health Sciences Center 4200 East 9th Avenue, C238 Denver, CO 80262 VIA FAX (303) 315-7223 American Petroleum Institute Attention: Harry Ng VIA FAX (202) 682-8033 Re: Supplemental Funding for Shanghai Health Study Gentlemen: On behalf of the Oversight Committee of the Benzene Health Research Consortium (BHRC), I am withdrawing the letter dated February 23, 2007. It has been brought to my attention that the letter did not expressly address the continuing role of American Petroleum Institute (API) as the administrator and contracting entity for the Study. The BHRC has no authority to make any commitment on behalf of API. We remain anxious to continue work on the Study and look forward to making progress in this area. In that regard, I understand API will be in contact with the appropriate parties. Sincerely yours, Patsy Clegg Chair, Oversight Committee Shanghai Health Study An equal opportunity employer SHELL-MCCLURG-065113 cc: Ralph Altiere - (303) 315-6281 FAX Charlotte Klaus - (303) 315-6281 FAX David Ross - (303) 315-0274 FAX Dan Wilkerson - (303) 315-4446 FAX SHELL-MCCLURG-06S114