Exhibit 99.1


                            CERTIFICATION PURSUANT TO
                             18 U.S.C. SECTION 1350,
                             AS ADOPTED PURSUANT TO
                  SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

With reference to and to accompany the Quarterly  Report of Silgan Holdings Inc.
(the  "Company") on Form 10-Q for the period ending  September 30, 2002 as filed
with the Securities and Exchange  Commission on the date hereof (the  "Report"),
I, R.  Philip  Silver,  Co-Chief  Executive  Officer  of the  Company,  certify,
pursuant to 18 U.S.C.  Section 1350,  as adopted  pursuant to Section 906 of the
Sarbanes-Oxley Act of 2002, that, to my knowledge:

     (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/ R. Philip Silver
--------------------
R. Philip Silver
Chairman of the Board and Co-Chief Executive Officer

November 14, 2002