CERTIFICATION UNDER RULE 466

The Depositary, Citibank, N.A., represents and certifies the following:

      (1)   That it previously had filed a registration statement on Form F-6
            (Registration No. 333-12010), which the Commission declared
            effective with terms of deposit identical to the terms of this
            registration statement.

      (2)   That its ability to designate the date and time of effectiveness
            under Rule 466 has not been suspended.

                                         Citibank, N.A., as Depositary


                                         By: /s/ Patricia Brigantic
                                             -----------------------------------
                                             Name: Patricia Brigantic, Esq.
                                             Title: Director & Associate Counsel