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. 333-5224), that 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
                                          Title: Director & Counsel