EXHIBIT 32.1


               STATEMENT FURNISHED PURSUANT TO SECTION 906 OF THE

               SARBANES-OXLEY ACT OF 2002, 18 U.S.C. SECTION 1350


The undersigned, Lukas Winkler, is the President and Chief Executive Officer of
INFICON Holding AG (the "Company").

This statement is being furnished in connection with the submission by the
Company of the Company's Report on Form 6-K on or about May 25, 2004 (the
"Report").

By execution of this statement, I certify that:

      (A)   the Report fully complies with the requirements of Section 13(a) or
            15(d) of the Securities Exchange Act of 1934 (15 U.S.C. 78m(a) and
            78o(d)) and

      (B)   the information contained in the Report fairly presents, in all
            material respects, the financial condition and results of operations
            of the Company.

It is not intended that this statement be deemed to be filed for purposes of the
Securities Exchange Act of 1934.


Date: May 25, 2004                    By: /s/ Lukas Winkler
                                          ------------------------------
                                          Lukas Winkler
                                          President and Chief Executive Officer


                                      -26-


               STATEMENT FURNISHED PURSUANT TO SECTION 906 OF THE

               SARBANES-OXLEY ACT OF 2002, 18 U.S.C. SECTION 1350


The undersigned, Peter G. Maier, is the Vice President and Chief Financial
Officer of INFICON Holding AG (the "Company").

This statement is being furnished in connection with the submission by the
Company of the Company's Report on Form 6-K on or about May 25, 2004 (the
"Report").

By execution of this statement, I certify that:

      (A)   the Report fully complies with the requirements of Section 13(a) or
            15(d) of the Securities Exchange Act of 1934 (15 U.S.C. 78m(a) and
            78o(d)) and

      (B)   the information contained in the Report fairly presents, in all
            material respects, the financial condition and results of operations
            of the Company.

It is not intended that this statement be deemed to be filed for purposes of the
Securities Exchange Act of 1934.


Date: May 25, 2004                    By:  /s/ Peter G. Maier
                                           -----------------------------
                                           Peter G. Maier
                                           Vice President and Chief
                                           Financial Officer


                                      -27-