Certification under Rule 466
                          ----------------------------



      The depositary, JPMorgan Chase Bank, N.A. represents and certifies the
following:

      (1) That it previously had filed a registration statement on Form F-6
(China Life Insurance Company Limited, 333-110622) that the Commission declared
effective, with terms of deposit identical to the terms of deposit of this
registration statement.

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


                                       JPMORGAN CHASE BANK, N.A., as Depositary




                                       By /s/Joseph M. Leinhauser
                                          ---------------------------------
                                       Name: Joseph M. Leinhauser
                                       Title: Vice President