Exhibit II

                             Joint Filing Agreement



                             JOINT FILING AGREEMENT
                            -------------------------

             In accordance with Rule 13d-1(k) promulgated under the Securities
Exchange Act of 1934, as amended, the undersigned hereby agree to the joint
filing on behalf of each of them of a statement on Schedule 13G (including
amendments thereto) with respect to the Common Stock, par value (euro)1.25 per
share, of ASLTOM, a French societe anonyme, and that this Agreement may be
included as an Exhibit to such joint filing. The undersigned acknowledge that
each shall be responsible for the timely filing of such amendments, and for the
completeness and accuracy of the information concerning it contained therein,
but shall not be responsible for the completeness and accuracy of the
information concerning the other, except to the extent that it knows or has
reason to believe that such information is inaccurate. This Agreement may be
executed in any number of counterparts, all of which taken together shall
constitute one and the same instrument.

             IN WITNESS WHEREOF, the undersigned hereby execute this Agreement
as of the 31st day of December, 2003.

                                     BANQUE FEDERALE DES BANQUES POPULAIRES S.A.

                                     /s/ GOUDARD Michel
                                     ------------------
                                     Name: GOUDARD Michel
                                     Title: C.E.O.

                                     Natexis Banques
                                     Populaires S.A.

                                     /s/ CASASSA Francois
                                     --------------------
                                     Name: CASASSA Francois
                                     Title: General Secretary