U.S. SECURITIES AND EXCHANGE COMMISSIONWashington, D.C. 20549

FORM 40-F

o    Registration statement pursuant to Section 12 of the Securities Exchange Act of 1934

or

ý    Annual
Report pursuant to Section 13(a) or 15(d) of the Securities Exchange Act of 1934

For the fiscal year endedDecember 31, 2003

Commission
File Number000-26104

TESMA INTERNATIONAL INC.(Exact name of Registrant as specified in its charter)

NOT APPLICABLE (Translation of Registrant's name into English (if applicable)

|PROVINCE OF ONTARIO, CANADA (Province of other jurisdiction of
incorporation or organization) |  | 3714 (Primary Standard Industrial Classification
Code number (if applicable) |  | NOT APPLICABLE (I.R.S. Employer Identification
Number (if applicable)
|--------------------------------------------------------------------------------------------- |  | ---------------------------------------------------------------------------- |  | ---------------------------------------------------------------------

1000 TESMA WAY, CONCORD, ONTARIO, CANADA L4K 5R8 (905) 417-2100 (Address and telephone number of Registrant's principal executive offices)

CT CORPORATION SYSTEM, 111 8th Avenue, 13th floor, New York, New York 10011
(212) 590-9100 (Name, Address (Including Zip Code) and Telephone Number
(Including Area Code) of Agent For Service in the United States)

Securities registered or to be registered pursuant to Section 12(b) of the Act.

|Title of each classCLASS A SUBORDINATE VOTING SHARES |  | Name of each exchange on which registeredNASDAQ NATIONAL MARKET
|---------------------------------------------------- |  | ---------------------------------------------------------------

Securities
registered or to be registered pursuant to Section 12(g) of the Act. NOT APPLICABLE

Securities
for which there is a reporting obligation pursuant to Section 15(d) of the Act. NONE

For
annual reports, indicate by check mark the information filed with this Form:

ý
Annual Information
Form                                         
       o Audited Annual Financial Statements

Indicate the number of outstanding shares of each of the issuer's classes of capital or common stock as of the close of the period covered by the annual report.



Indicate
by check mark whether the Registrant by filing the information contained in this Form is also hereby furnishing the information to the Commission pursuant to
Rule 12g3-2(b) under the Securities and Exchange Act of 1934 (the "Exchange Act"). If "Yes" is marked, indicate the filing number assigned to the Registrant in connection with such
Rule.

Yes
o                   No ý

Indicate by check mark whether the Registrant (1) has filed all reports required to be filed by Section 12 or 15(d) of the Exchange Act
during the preceding 12 months (or for such shorter period that the Registrant was required to file such reports) and (2) has been subject to such filing requirements for the past
90 days.

Yes
ý                   No o



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1.    ANNUAL INFORMATION FORM

The
Registrant's Annual Information Form for the year ended December 31, 2003 required under Canadian law is attached hereto as Exhibit 1 (the "Annual Information Form").

2.    AUDITED ANNUAL FINANCIAL STATEMENTS AND MANAGEMENT'S DISCUSSION AND ANALYSIS

The
Registrant's Annual Report to Shareholders for the year ended December 31, 2003 (the "Annual Shareholders' Report") was previously filed with the U.S. Securities and Exchange
Commission (the "Commission") as Exhibit 19 to the Registrant's Report on Form 6-K dated April 8, 2004. For the Registrant's consolidated audited annual
financial statements, including the report of the independent chartered accountants with respect thereto, see pages 45 to 79 (inclusive) and page 44, respectively, of the Annual
Shareholders' Report. See note 22 to the Registrant's consolidated audited annual financial statements, on pages 74 to 78 of the Annual Shareholders' Report, reconciling
the important differences between Canadian and United States generally accepted accounting principles ("GAAP").

For
the Registrant's Management's Discussion and Analysis of Results of Operations and Financial Position, see pages 25 to 43 of the Annual Shareholders' Report.

3.    WEBSITE INFORMATION

Notwithstanding
any reference to the Registrant's website on the World Wide Web in the Annual Information Form or in the documents attached or incorporated as exhibits thereto, the information
contained in the Registrant's website, or any other site on the World Wide Web referred to in the Registrant's website, is not a part of this annual report on Form 40-F and,
therefore, is not filed with the Commission.

4.    FORWARD-LOOKING STATEMENTS

The
Registrant has made in the documents filed as part of this annual report on Form 40-F, and from time to time may otherwise make "forward-looking statements", within the
meaning of Section 21E of the Exchange Act, and related assumptions concerning its operations, economic performance and financial matters. The Registrant is under no duty to update any of these
forward-looking statements or related assumptions. Actual results or events could differ materially from those set forth in, or implied by, the forward-looking statements and the related assumptions
due to a variety of factors. Reference is made to the section entitled "Forward-Looking Statements" on page 3 of the Annual Information Form for a discussion of such factors.

5.    DISCLOSURE CONTROLS AND PROCEDURES

The
Registrant's Chairman and Chief Executive Officer and its Vice-Chairman and Chief Financial Officer are responsible for establishing and maintaining the Registrant's system of
disclosure controls and procedures, as such term is defined under applicable rules of the Commission. These executive officers have designed the Registrant's disclosure controls and procedures, or
caused such disclosure controls and procedures to be designed under their supervision, to ensure that material information relating to the Registrant, including its consolidated subsidiaries, is made
known to them by others within those entities, particularly during the period in which this annual report on Form 40-F was being prepared. The Registrant's Chairman and Chief
Executive Officer and its Vice-Chairman and Chief Financial Officer have evaluated the effectiveness of the Registrant's disclosure controls and procedures as of December 31, 2003.
Based on this evaluation, these executive officers are satisfied as to the effectiveness of the Registrant's disclosure controls and procedures in ensuring that material information relating to the
Registrant, including its consolidated subsidiaries, is made known to them in a timely manner.

There
have been no significant changes to the Registrant's internal controls or other factors that could significantly affect these controls subsequent to the date of their evaluation.

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6.    AUDIT COMMITTEE MEMBERS AND AUDIT COMMITTEE FINANCIAL EXPERT

The
Registrant has a separately designated standing audit committee of its Board of Directors (the "Audit Committee"), which is comprised of the following members of the Registrant's Board of
Directors: Judson D. Whiteside (Chairman), Oscar B. Marx, III and Hon. David R. Peterson, P.C.

Each
of Messrs. Whiteside, Marx and Peterson has been determined by the Registrant's Board of Directors to meet the "independence" and "financial literacy" requirements for Audit Committee
members currently applicable to the Registrant as set forth in the Corporate Governance Rules of the NASDAQ National Market. In addition, the Registrant's Board has determined that the Audit Committee
currently consists of at least one member who meets the financial experience, professional certification and financial sophistication requirements under the Corporate Governance Rules of the NASDAQ
National Market. Currently, this individual is Mr. Marx, who was also determined by the Registrant's Board to be an "audit committee financial expert" as defined in Item 401 of Rgulation
S-K.

Effective
July 31, 2005, the Registrant's Audit Committee members will be required to meet a new definition of independence. The Registrant's Board has reviewed the composition of the Audit
Committee in light of this new definition of independence, and has determined that each of Messrs. Marx and Peterson will continue to be considered independent under such definition. The
Registrant's Board has also determined that Mr. Whiteside will not meet the new independence definition as of July 31, 2005 as a result of the fees paid by the Registrant to Miller
Thomson LLP, a law firm in which Mr. Whiteside is a partner. The Registrant intends to fully comply with the new definition of independence as required no later than July 31,
2005. Accordingly, to the extent that Miller Thomson LLP provides legal services to the Registrant or any of its subsidiaries in the future, Mr. Whiteside shall only continue to serve on
the Audit Committee until a suitable replacement can be found prior to July 31, 2005 who satisfies the new independence definition for Audit Committee members.

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7.    CODE OF ETHICS

The
Registrant has adopted a Code of Conduct and Ethics that applies to all of its employees, including its: (1) Chairman and Chief Executive Officer; (2) Vice-Chairman and
Chief Financial Officer; (3) President; (4) Vice-President, Finance and Treasurer; and (5) Controller, as well as other persons performing similar functions. The
Registrant's Code of Conduct and Ethics is posted on the Registrant's website (www.tesma.com/corporate_governance.asp).

8.    PRINCIPAL ACCOUNTANT FEES AND SERVICES

The
aggregate fees billed for professional services rendered by Ernst & Young LLP, the Registrant's principal accountant (the "Auditor") for the Registrant's year ended
December 31, 2003 ("calendar 2003") and five-month period ended December 31, 2002 ("fiscal 2002 stub period"), are as follows:

Calendar 2003

Fiscal 2002
Stub PeriodAudit

$
407,500

$
205,800Audit-Related

$
326,300

$
18,700Tax

$
561,100

$
54,700Non-Audit








Audit
services provided by the Auditor consisted of services performed by the Auditor to comply with generally accepted auditing standards ("GAAS"). Fees included in this category may include an
appropriate allocation of fees for tax services or accounting consultations, to the extent such services were necessary to comply with GAAS.

Audit-Related
services provided by the Auditor consisted primarily of accounting and assurance services, the performance of quarterly review engagement procedures (commencing in the first quarter of
calendar 2003), attendance at quarterly Audit Committee meetings and the provision of related information and reports.

Substantially
all of the tax services provided by the Auditor related to tax compliance, advisory and research services, special tax projects and transfer pricing assistance.

For
each of the reported periods, the Auditor did not provide any consulting services to the Registrant or services relating to the design or implementation of the Registrant's financial information
systems.

The
Audit Committee has adopted a process for pre-approving all services to be provided by, and the related fees to be paid to, the Auditor. This process includes reviewing and approving
annual budgets for audit, audit-related and permitted non-audit services, including tax services. In addition, the Audit Committee reviews the services rendered by, and actual fees paid
to, the Auditors at each regularly scheduled Audit Committee meeting, and may approve changes to the budgeted amounts or the services included in each category, as applicable.

The
Audit Committee has delegated authority to its Chairman to pre-approve engagements of the Auditor to provide permitted non-audit services that have not previously been
considered by the Committee or that have estimated fees that exceed the budgeted amount for a particular category of permitted non-audit services. The Chairman is required to report to the
Audit Committee on all pre-approvals granted under such authority at the next regularly scheduled Audit Committee meeting.

None
of the services provided by the Auditor in calendar 2003 were treated as exempt from pre-approval pursuant to the de minimis provision of paragraph (c)(7)(i)(C) of
Rule 2-01 of Regulation S-X.

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9.    OFF-BALANCE SHEET ARRANGEMENTS AND TABULAR DISCLOSURE OF CONTRACTUAL OBLIGATIONS

At
December 31, 2003, the Registrant had contractual obligations for which it has recognized liabilities on its consolidated balance sheet that require annual payments as follows:

|(U.S. dollars in thousands)                  |  | Less than
1 year |       | 1-3 years |   | 4-5 years |  | After
5 years |       | Total
|-------------------------------------------- |  | ---------------- | ----- | --------- | - | --------- |  | ------------- | ----- | -----
|Long-term debt and capital lease obligations |  | $                | 3,919 |           | $ | 53,401    |  | $             | 6,608 |      
|Long-term license arrangement                |  |                  | 77    |           |   | 155       |  |               | 155   |      
|Purchase obligations [i]                     |  |                  |      |           |   |          |  |               |      |      
|                                             |  |                  |       |           |   |           |  |               |       |      
|Total contractual obligations                |  | $                | 3,996 |           | $ | 53,556    |  | $             | 6,763 |      
|                                             |  |                  |       |           |   |           |  |               |       |      

In addition to the above, the Registrant's obligations with respect to employee future benefit plans as at December 31, 2003, were as follows:

|(U.S. dollars in thousands)                  |  |  
|-------------------------------------------- |  | -
|Post-retirement medical benefits obligations |  | $
|Termination and long service arrangements    |  |  
|                                             |  |  
|                                             |  | $
|                                             |  |  

The
Registrant also has off-balance sheet financing or other contractual arrangements which include: operating lease contracts, foreign exchange forward contracts, a contract to purchase
hydroelectricity supply and certain government assistance arrangements with contingent repayment terms. At December 31, 2003, these commitments or arrangements require annual payments as
follows:

|(U.S. dollars in thousands)                    |  | Less than 1 year |       | 1-3 years |   | 4-5 years |  | After 5 years |        | Total
|---------------------------------------------- |  | ---------------- | ----- | --------- | - | --------- |  | ------------- | ------ | -----
|Operating leases with MI Developments Inc. [i] |  | $                | 3,776 |           | $ | 7,599     |  | $             | 7,317  |      
|Operating leases with third parties [i]        |  |                  | 4,168 |           |   | 5,667     |  |               | 2,781  |      
|Electricity swap contracts [ii]                |  |                  | 1,925 |           |   | 596       |  |               |       |      
|Foreign exchange instruments [iii]             |  |                  |       |           |   |           |  |               |        |      
|Government assistance arrangements [iv]        |  |                  |       |           |   |           |  |               |        |      
|                                               |  |                  |       |           |   |           |  |               |        |      
|Total off-balance sheet arrangements           |  | $                | 9,869 |           | $ | 13,862    |  | $             | 10,098 |      
|                                               |  |                  |       |           |   |           |  |               |        |      



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UNDERTAKING AND CONSENT TO SERVICE OF PROCESS

A.    Undertaking

The
Registrant undertakes to make available, in person or by telephone, representatives to respond to inquiries made by the Commission staff, and to furnish promptly, when requested to do so by the
Commission staff, information relating to: the securities registered pursuant to Form 40-F; the securities in relation to which the obligation to file an annual report on
Form 40-F arises; or transactions in said securities.

B.    Consent to Service of Process

A
Form F-X signed by the Registrant and its agent for service of process was previously filed with the Commission.

SIGNATURES

Pursuant
to the requirements of the Exchange Act, the Registrant certifies that it meets all of the requirements for filing on Form 40-F and has duly caused this annual
report to be signed on its behalf by the undersigned, thereunto duly authorized.

|TESMA INTERNATIONAL INC.
|------------------------
|Registrant:             

|/s/ Stefan T. Proniuk                                          
|---------------------------------------------------------------
|By (Signature and Title):                                      
|Stefan T. Proniuk
Vice-President, Secretary and General Counsel

|May 17, 2004
|------------
|Date:       

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EXHIBIT INDEX

|             |  |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
|------------ |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|Exhibit 1    |  | Annual Information Form of the Registrant dated May 17, 2004.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        
|Exhibit 2    |  | Registrant's Annual Report to Shareholders for the Year Ended December 31, 2003, which contains the Registrant's audited consolidated balance sheets as at December 31, 2003 and December 31, 2002 and consolidated statements of income
and retained earnings and cash flows for the year ended December 31, 2003, the five-month period ended December 31, 2002 and each of the years in the two-year period ended July 31, 2002, as well as Management's Discussion and Analysis
of Results of Operations and Financial Position (incorporated by reference to Exhibit 19 to Registrant's Report on Form 6-K dated April 8, 2004).
|Exhibit 3    |  | Consent of Ernst & Young LLP.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        
|Exhibit 99.1 |  | Certificate of Principal Executive Officer Pursuant to Exchange Act Rules 13a-14(a) and 15d-14(a), as Adopted Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.                                                                                                                                                                                                                                                                                                                                                                                                                                                             
|Exhibit 99.2 |  | Certificate of Principal Financial Officer Pursuant to Exchange Act Rules 13a-14(a) and 15d-14(a), as Adopted Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.                                                                                                                                                                                                                                                                                                                                                                                                                                                             
|Exhibit 99.3 |  | Certificate of Principal Executive Officer Pursuant to 18 U.S.C. Section 1350, as Adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 
|Exhibit 99.4 |  | Certificate of Principal Financial Officer Pursuant to 18 U.S.C. Section 1350, as Adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 

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