QuickLinks -- Click here to rapidly navigate through this document

EXHIBIT 99.1

CERTIFICATIONS OF CHIEF EXECUTIVE OFFICER AND
CHIEF FINANCIAL OFFICER
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 quarterly report on Form 10-Q of Advanced Materials Group, Inc. (the "Company") for the quarter ended May 31, 2003 (the "Report"), the undersigned hereby certifies in his capacity as Chief Executive Officer of the Company, pursuant to 18 U.S.C. section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

1.

the Report fully complies with the requirements of Section 13(a) or 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 Company.

Dated: July 11, 2003 By: /s/  STEVE F. SCOTT Steve F. Scott, Chief Executive Officer

        A signed original of this written statement required by Section 906 has been provided to the Company and will be retained by the Company and furnished to the Securities and Exchange Commission or its staff upon request.

        In connection with the quarterly report on Form 10-Q of Advanced Materials Group, Inc. (the "Company") for the quarter ended May 31, 2003 (the "Report"), the undersigned hereby certifies in her capacity as Chief Financial Officer of the Company, pursuant to 18 U.S.C. section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

1.

the Report fully complies with the requirements of Section 13(a) or 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 Company.

Dated: July 11, 2003 By: /s/  GAYLE L. ARNOLD Gayle L. Arnold, Chief Financial Officer

        A signed original of this written statement required by Section 906 has been provided to the Company and will be retained by the Company and furnished to the Securities and Exchange Commission or its staff upon request.

QuickLinks

EXHIBIT 99.1