EX-99.906 5 siit906certel.txt SIIT AR CERT 906 EL 9_30_03 CERTIFICATION Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 The undersigned, the Chief Executive Officer of SEI Institutional International Trust (the "Trust"), with respect to the Form N-CSR for the period ended September 30, 2003 as filed with the Securities and Exchange Commission, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, hereby certifies that, to the best of my knowledge: 1. such Form N-CSR fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and 2. the information contained in such Form N-CSR fairly presents, in all material respects, the financial condition and results of operations of the Fund. Dated: November 26, 2003 /s/ Edward D. Loughlin ---------------------- Edward D. Loughlin