Certification of CEO and CFO 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 on Form 10-K of ISP Chemco Inc. (the "Company") for the fiscal year ended December 31, 2003 as filed with the Securities and Exchange Commission on the date hereof (the "Report"), Sunil Kumar, as President and Chief Executive Officer of the Company and Neal E. Murphy, as Senior Vice President and Chief Financial Officer of the Company, each hereby certifies, pursuant to 18 U.S.C. §1350, as adopted pursuant to §906 of the Sarbanes-Oxley Act of 2002, that, to the best of his knowledge and belief:
(1) The Report 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 the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.
/s/ SUNIL KUMAR | ||||
| Name: | Sunil Kumar | |||
| Title: | President and Chief Executive Officer | |||
| Date: | March 23, 2004 | |||
| /s/ NEAL E. MURPHY | ||||
| Name: | Neal E. Murphy | |||
| Title: | Senior Vice President and Chief Financial Officer | |||
| Date: | March 23, 2004 | |||
This certification accompanies the Report pursuant to §906 of the Sarbanes-Oxley Act of 2002 and shall not, except to the extent required by the Sarbanes-Oxley Act of 2002, be deemed filed by the Company for purposes of §18 of the Securities Exchange Act of 1934, as amended.
