UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 12b-25 --------------------------------- NOTIFICATION OF LATE FILING SEC FILE NUMBER 333-08430-03 ---------------------------------- ---------------------------------- CUSIP NUMBERS 40048CAA1 40048CAB9 ---------------------------------- (Check One): [ ] Form 10-K and Form 10-KSB [X] Form 20-F [ ] Form 11-K [ ] Form 10-Q and Form 10-QSB For Period Ended: December 31, 2002 [ ] Transition Report on Form 10-K [ ] Transition Report on Form 20-F [ ] Transition Report on Form 11-K [ ] Transition Report on Form 10-Q [ ] Transition Report on Form N-SAR [ ] Money Market Fund Rule 30b3-1 Filing For the Transition Period Ended: Nothing in this form shall be construed to imply that the Commission has verified any information contained herein. If the notification relates to a portion of the filing checked above, identify the Item(s) to which the notification relates: Part I - Registrant Information Full Name of Registrant Mexicana de Cananea, S.A. de C.V. Translation of Name of Registrant into English Mexican Cananea Company Address of Principal Executive Office (Street and Number) c/o Grupo Minero Mexico, S.A. de C.V. Avenida Baja California No. 200 City, State and Zip Code Roma Sur, Mexico, D.F., C.P. 06760 Part II - Rules 12b-25(b) and (c) If the subject report could not be filed without unreasonable effort or expense and the registrant seeks relief pursuant to Rule 12b-25(b), the following should be completed. (Check box if appropriate) (d) [X] The reasons described in reasonable detail in Part III of this form could not be eliminated without unreasonable effort or expense. (e) [X] The subject annual report on Form 20-F will be filed on or before the fifteenth calendar day following the prescribed due date being June 30, 2003. (f) [ ] The accountant's statement or other exhibit required by Rule 12b-25(c) has been attached. Part III - Narrative The registrant is not able to file the annual report on Form 20-F within the prescribed time period because of delays in the preparation of certain financial and other information required to be included in its Form 20-F. Such delays were due to the dedication of the registrant's resources during the past several months to the restructuring of the financial indebtedness of its parent, Grupo Minero Mexico, S.A. de C.V. It is the registrant's intention to file the annual report on Form 20-F as soon as it is complete. Part IV - Other Information (4) Name and telephone number of person to contact in regard to this notification Name: Ernesto Duran, Corporate Comptroller Telephone Number: 52-55-5564-7470 (5) Have all other periodic reports required under section 13 or 15(d) of the Securities Exchange Act of 1934 or Section 30 of the Investment Company Act of 1940 during the preceding 12 months or for such shorter period that the registrant was required to file such report(s) been filed? If the answer is no, identify report(s). [X] Yes [ ] No (6) Is it anticipated that any significant change in results of operations from the corresponding period for the last fiscal year will be reflected by the earnings statements to be included in the subject report or portion thereof? [ ] Yes [X] No SIGNATURES Pursuant to the requirements of Rule 12b-25 of the General Rules and Regulations under the Securities Exchange Act of 1934, Mexicana de Cananea, S.A. de C.V. has caused this notification to be signed on its behalf by the undersigned thereunto duly authorized. Date: June 30, 2003 By: /s/Ernesto Duran --------------------------- Name: Ernesto Duran Title: Corporate Comptroller