U.S. SECURITIES AND EXCHANGE COMMISSION

FORM 40-F

IVANHOE MINES LTD.

Suite 654, 999 Canada Place, Vancouver, British Columbia, Canada V6C 3E1, (604) 688-5755
(Address and telephone number of registrant’s principal executive offices)

CT Corporation System
111 Eighth Avenue
New York, New York
10011
(212) 894-8700
(Name, address and telephone number of agent for service in the United States)

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

Common Shares without par value
(Title of Class)

Securities registered or to be registered pursuant to Section 12(g) of the Act: None

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:

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:

292,870,998 Common Shares outstanding as of December 31, 2004

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

Indicate by check mark whether the Registrant (1) has filed all reports required to be filed by Section 13 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.

FORWARD-LOOKING STATEMENTS

Certain information contained herein constitutes forward-looking statements within the meaning of Section 21E of the United States Securities Exchange Act of 1934, as amended, and Section 27A of the United States Securities Act of 1933, as amended. Forward-looking statements include, but are not limited to, statements concerning estimates of expected capital expenditures, statements relating to expected future production and cash flows, statements relating to the continued advancement of the Registrant’s exploration, development and production projects, statements relating to the potential of the Oyu Tolgoi Project, statements relating to target milling rates and other statements that are not historical facts. When used in this document, the words such as “could,” “plan,” “estimate,” “expect,” “intend,” “may,” “potential,” “should” and similar expressions, are forward-looking statements. Although the Registrant believes that its expectations reflected in these forward-looking statements are reasonable, such statements involve risks and uncertainties and no assurance can be given that actual results will be consistent with these forward-looking statements. Important factors that could cause actual results to differ from these forward-looking statements include the potential that the Registrant’s projects will experience technological and mechanical problems, geological conditions in the deposits may not result in commercial levels of mineral production, changes in product prices, changes in political conditions, changes in the availability of project financing and other risks. Forward-looking statements are based on the opinions and estimates of management at the date the statements are made, and are subject to a variety of risks and uncertainties and other factors that could cause actual events or results to differ materially from those projected in the forward-looking statements. The Registrant undertakes no obligation to update forward-looking statements if circumstances or management’s estimates or opinions should change. The reader is cautioned not to place undue reliance on forward-looking statements.

This annual report incorporates by reference estimates of mineral resources and reserves. The estimation of resources and reserves is inherently uncertain and involves subjective judgments about many relevant factors. The accuracy of any such estimates is a function of the quantity and quality of available data, and of the assumptions made and judgments used in engineering and geological interpretation, which may prove to be unreliable. There can be no assurance that these estimates of mineral resources and reserves will be accurate or that such mineral resources and reserves can be mined or processed profitably. Mineral resources that are not mineral reserves do not have demonstrated economic viability.

Events or circumstances could cause our actual results to differ materially from those estimated or projected and expressed in, or implied by, these forward-looking statements. These and additional factors are described in more detail under the heading “Risk Factors” in the Annual Information Form for the fiscal year ended December 31, 2004 attached hereto as Exhibit 1.

EVALUATION OF DISCLOSURE CONTROLS AND PROCEDURES

As of the end of the period covered by this annual report, the Registrant carried out an evaluation, under the supervision and with the participation of the Registrant’s management, including the Chief Executive Officer (“CEO”) and Chief Financial Officer (“CFO”), of the effectiveness of the Registrant’s “disclosure controls and procedures” (as such term is defined in Rules 13a-15(e) and 15d-15(e) of the United States Securities Exchange Act of 1934 (the “Exchange Act”)). Based on that evaluation, the CEO and CFO have concluded that as of such date the Registrant’s disclosure controls and procedures are effective to ensure that information required to be disclosed by the Registrant in reports that it files or submits under the Exchange Act is (i) recorded, processed, summarized and reported within the time periods specified in United States Securities and Exchange Commission (“SEC”) rules and summarized and reported within the time periods specified in SEC rules and forms; and (ii) accumulated and communicated to the Registrant’s management, including its CEO and CFO, to allow timely decisions regarding required disclosure.

It should be noted that while the Registrant’s CEO and CFO believe that the Registrant’s disclosure controls and procedures provide a reasonable level of assurance that they are effective, they do not expect that the Registrant’s disclosure controls and procedures or internal control over financial reporting will prevent all errors and fraud. A control system, no matter how well conceived or operated, can provide only reasonable, not absolute, assurance that the objectives of the control system are met.

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CHANGES IN INTERNAL CONTROL OVER FINANCIAL REPORTING

During the fiscal year ended December 31, 2004 there were no changes in the Registrant’s internal control over financial reporting that have materially affected, or are reasonably likely to materially affect, the Registrant’s internal control over financial reporting.

AUDIT COMMITTEE

The Registrant’s board of directors has a separately-designated standing Audit Committee established in accordance with section 3a(58)(A) of the Exchange Act for the purpose of overseeing the accounting and financial reporting processes of the Registrant and audits of the Registrant’s annual financial statements. As of the date of this annual report, the members of the Audit Committee are Messrs. John Weatherall, Kjeld Thygesen and Dr. Marcus Faber. Mr. Weatherall is the Chairman of the Audit Committee.

Each of the directors serving on the Audit Committee has also been determined by the Board of the Registrant to be independent within the criteria established by the SEC and the New York Stock Exchange for audit committee membership.

AUDIT COMMITTEE FINANCIAL EXPERT

The Registrant’s board of directors has determined that Mr. John Weatherall is an “audit committee financial expert” (as such term is defined in Form 40-F). In addition, Mr. Weatherall is independent, as that term is defined by the SEC and the New York Stock Exchange listing standards applicable to the Registrant.

Mr. Weatherall, a Chartered Financial Analyst, is currently the President of Scarthingmoor Asset Management Inc. He has over 40 years of experience as an investment analyst and also has experience as a portfolio manager.

CODE OF BUSINESS CONDUCT AND ETHICS

The Registrant has adopted a written Code of Business Conduct and Ethics that applies to everyone at Ivanhoe Mines Ltd., including all directors, officers and employees. The Code of Business Conduct and Ethics includes, among other things, written standards for the Registrant’s principal executive officer, principal financial officer and principal accounting officer that are required by the SEC for a code of ethics applicable to such officers. To review or obtain a copy of the Registrant’s Code of Business Conduct and Ethics, see “Corporate and Social Responsibilities – Code of Business Conduct and Ethics” posted on the Registrant’s website, www.ivanhoe-mines.com.

Since the adoption of the Code of Business Conduct and Ethics, there have not been any amendments to the Code of Business Conduct and Ethics or waivers, including implicit waivers, from any provision of the Code of Business Conduct and Ethics.

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PRINCIPAL ACCOUNTANT FEES AND SERVICES

Deloitte & Touche LLP has served as the Registrant’s auditing firm since January 1995. Fees billed by Deloitte & Touche LLP and its affiliates during fiscal 2004 and fiscal 2003 were Canadian $1,336,000 and Canadian $1,042,000, respectively. The aggregate fees billed by the auditors in fiscal 2004 and fiscal 2003 are detailed below.

Pre-Approval Policies and Procedures

All services to be performed by the Registrant’s independent auditor must be approved in advance by the Audit Committee or a designated member of the Audit Committee (“Designated Member”). The Designated Member is a member of the Audit Committee who has been given the authority to grant pre-approvals of permitted audit and non-audit services.

The Audit Committee has considered whether the provision of services other than audit services is compatible with maintaining the auditors’ independence and has adopted a policy governing the provision of these services. This policy requires the pre-approval by the Audit Committee or the Designated Member of all audit and non-audit services provided by the external auditor, other than any de minimus non-audit services allowed by applicable law or regulation. The decisions of the Designated Member to pre-approve a permitted service needs to be reported to the Audit Committee at its regularly scheduled meetings.

Pre-approval from the Audit Committee or Designated Member can be sought for planned engagements based on budgeted or committed fees. No further approval is required to pay pre-approved fees. Additional pre-approval is required for any increase in scope or in final fees.

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OFF-BALANCE SHEET ARRANGEMENTS

During the most recent financial year, the Registrant was not a party to any off-balance sheet arrangements that have or are reasonably likely to have a current or future material effect on its financial condition, revenues or expenses, results of operations, liquidity, capital expenditures or capital resources, other than the call options referred to under the heading “Management’s Discussion and Analysis of Financial Condition and Results of Operations – Financial Instruments” contained in Exhibit 3 to this Annual Report on Form 40-F, incorporated by reference herein.

TABULAR DISCLOSURE OF CONTRACTUAL OBLIGATIONS

The information provided under the heading “Management’s Discussion and Analysis of Financial Condition and Results of Operations – Contractual Obligations,” contained in Exhibit 3 to this Annual Report on Form 40-F, is incorporated by reference herein.

DISCLOSURES PURSUANT TO REQUIREMENTS OF THE
NEW YORK STOCK EXCHANGE

Corporate Governance Practices Compared to New York Stock Exchange Listing Standards

The Registrant believes that its corporate governance practices do not differ in any significant way from those followed by U.S. companies under New York Stock Exchange listing standards.

Presiding Director at Meetings of Non-Management Directors

The Registrant schedules regular executive sessions in which the Registrant’s “non-management directors” (as that term is defined in the rules of the New York Stock Exchange) meet without management participation. David Huberman, the Registrant’s lead director (the “Lead Director”) serves as the presiding director at such sessions.

Communication with Non-Management Directors

Shareholders may send communications to the Registrant’s non-management directors by writing to the Lead Director, c/o Ivanhoe Mines Ltd., 654 – 999 Canada Place, Vancouver, British Columbia, Canada V6C 3E1. Communications will be referred to the Lead Director for appropriate action. The status of all outstanding concerns addressed to the Lead Director will be reported to the board of directors as appropriate.

Corporate Governance Guidelines

According to NYSE Rule 303A.09, a listed company must adopt and disclose a set of corporate governance guidelines with respect to specified topics. Such guidelines are required to be posted on the listed company’s website. The Registrant has adopted the required guidelines and has posted them on its website at www.ivanhoe-mines.com. The required guidelines are available in print to any shareholder who requests them. Requests for copies of these documents should be made by contacting: Ivanhoe Mines Ltd., 654 – 999 Canada Place, Vancouver, British Columbia, Canada V6C 3E1.

Board Committee Mandates

The Mandates of the Registrant’s audit committee, compensation committee, and nominating and corporate governance committee are each available for viewing on the Registrant’s website at www.ivanhoe-mines.com, and are available in print to any shareholder who requests them. Requests for

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copies of these documents should be made by contacting: Ivanhoe Mines Ltd., 654 – 999 Canada Place, Vancouver, British Columbia, Canada V6C 3E1.

UNDERTAKING AND CONSENT TO SERVICE OF PROCESS

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.

Consent to Service of Process

The Registrant filed an Appointment of Agent for Service of Process and Undertaking on Form F-X on December 17, 2003 with respect to the class of securities in relation to which the obligation to file the Form 40-F arises.

Any change to the name or address of the agent for service of process of the registrant shall be communicated promptly to the SEC by an amendment to the Form F-X referencing the file number of the relevant registration statement.

SIGNATURE

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, thereto duly authorized.

Dated: March 30, 2005

IVANHOE MINES LTD.

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EXHIBIT INDEX