EXHIBIT 13.1 CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 In connection with the Annual Report of Mercury Partners & Company Inc. (the "Company") on Form 20-F for the year ended December 31, 2003 as filed with the Securities and Exchange Commission on the date hereof (the "Form 20-F"), I Tom S. Kusumoto, Chief Executive Officer and Chief Financial Officer of the Company, certify, pursuant to 18 U.S.C. Sec.1350, as adopted pursuant to Sec.906 of the Sarbanes-Oxley Act of 2002, that: (1) The Form 20-F fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934 (15 U.S.C. 78m or 78o(d)); and (2) The information contained in the Form 20-F fairly presents, in all material respects, the financial condition and results of operations of the Company. Dated: May 21, 2004 By: /s/ Tom S. Kusumoto ------------------------------- Tom S. Kusumoto Chief Executive Officer and Chief Financial Officer