Document:

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                                                                    Exhibit 10.4

                                  FORM 53-901F

               Section 85 (1) -- Securities Act (British Columbia)
                        (or the equivalent thereof under
                   Canadian Provincial Securities Legislation)

1.       REPORTING ISSUER

         Ivanhoe Mines Ltd. ("Ivanhoe")
         World Trade Centre
         Suite 654 - 999 Canada Place
         Vancouver, British Columbia
         V6C 3E1

2.       DATE OF MATERIAL CHANGE

         March 13, 2002

3.       PRESS RELEASE

         Date of Issuance:     March 13, 2002
         Place of Issuance:    Vancouver, British Columbia

4.       SUMMARY OF MATERIAL CHANGE

         Ivanhoe arranged an underwritten equity financing of approximately $55
         million with a syndicate of underwriters led by Griffiths McBurney &
         Partners and including HSBC Securities (Canada) Inc. and Haywood
         Securities Inc. (collectively, the "Underwriters").

5.       FULL DESCRIPTION OF MATERIAL CHANGE

         Pursuant to an underwriting agreement dated March 13, 2002 between
         Ivanhoe and the Underwriters, the Underwriters agreed to purchase
         12,000,000 common shares (the "Common Shares") of Ivanhoe at a price of
         Cdn$3.25 per share. The Underwriters were also granted an option (the
         "Underwriters' Option"), exercisable in whole or in part at the sole
         discretion of the Underwriters, to purchase up to an additional
         8,000,000 Common Shares at a price of Cdn$3.25 per share, on or before
         March 18, 2002. Ivanhoe agreed to pay to the Underwriters a fee equal
         to $0.1625 per Common Share (5% of the issue price) in consideration of
         the underwriting services rendered by the Underwriters in connection
         with the offering.

         On March 15, 2002 Ivanhoe filed a preliminary short form prospectus in
         all provinces of Canada other than Quebec to qualify for distribution
         12,000,000 Common Shares, plus up to 8,000,000 Common Shares issuable
         pursuant to the Underwriters' Option, at a price of $3.25 per Common
         Share. On March 18, 2002, the Underwriters elected to partially

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         exercise the Underwriters' Option by agreeing to purchase an additional
         5,450,000 Common Shares. The transaction is scheduled to close on or
         about April 3, 2002.

6.       RELIANCE ON SECTION 85 (2) OF THE ACT

         Not applicable

7.       OMITTED INFORMATION

         Not applicable

8.       SENIOR OFFICER

         For further information contact:

         Beverly Bartlett
         Ivanhoe Mines Ltd.
         World Trade Centre
         Suite 654 - 999 Canada Place
         Vancouver, British Columbia
         V6C 3E1

         Telephone:  (604) 688-5755

9.       STATEMENT OF SENIOR OFFICER

         The foregoing accurately discloses the material change referred to
         herein.

         DATED at Vancouver, British Columbia this 22nd day of March, 2002.

         IVANHOE MINES LTD.

         Per:       "Beverly Bartlett"
                -----------------------------
                   Beverly Bartlett
                   Corporate Secretary<PAGE>
                                                                    Exhibit 10.5

                                  FORM 53-901F

               Section 85 (1) -- Securities Act (British Columbia)
                        (or the equivalent thereof under
                   Canadian Provincial Securities Legislation)

1.       REPORTING ISSUER

         Ivanhoe Mines Ltd. ("Ivanhoe")
         World Trade Centre
         Suite 654 - 999 Canada Place
         Vancouver, British Columbia
         V6C 3E1

2.       DATE OF MATERIAL CHANGE

         September 10, 2002

3.       PRESS RELEASE

         Date of Issuance:     September 10, 2002
         Place of Issuance:    Vancouver, British Columbia

4.       SUMMARY OF MATERIAL CHANGE

         ABM Mining Ltd. ("ABM"), a wholly-owned subsidiary of Ivanhoe,
         indirectly acquired approximately Aus$74.9 million (U.S.$41 million) of
         project debt obligations owed to a third party institutional lender by
         ABM's wholly-owned subsidiary Goldamere Pty. Ltd. ("Goldamere"), the
         owner and operator of the Savage River iron ore mine and the Port Latta
         pellet plant (the "Savage River Project"), in consideration for a cash
         payment of Aus$15 million (U.S.$8.2 million).

5.       FULL DESCRIPTION OF MATERIAL CHANGE

         BACKGROUND

         Pursuant to a Project Facility Agreement dated January 12, 1998, as
         amended (the "Project Facility Agreement") UBS Australia Limited (the
         "Lender") agreed to provide credit facilities to Goldamere in the
         aggregate amount of approximately Aus$43 million (U.S.$23.6 million)
         (collectively the "Project Debt"). Pursuant to a Security Trust Deed
         dated November 13, 1998, as amended (the "Security Trust Deed"), the
         Project Debt is secured by a first lien over the assets of the Savage
         River Project. Under the terms of the Project Facility Agreement,
         Goldamere was required to implement a risk management program which
         involved, among other things, hedging currency risk in respect of the
         proceeds of the sale of iron ore from the Savage River Project (the
         "Hedging Arrangements"). Under the Hedging Arrangements, Goldamere was
         required to deliver to

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         the hedge counterparty U.S.$5 million of currency per month at an
         exchange rate of U.S.$0.6817:Aus$1.

         Pursuant to an asset purchase agreement dated December 10, 1996, as
         amended (the "Asset Purchase Agreement"), Goldamere agreed to purchase
         from the Crown in Right of the State of Tasmania (the "State"), the
         assets of the Savage River Project in consideration for a deferred
         payment of Aus$13 million (U.S.$7.1 million) (the Asset Purchase
         Price"). Under the terms of the Asset Purchase Agreement, the Asset
         Purchase Price was to be satisfied by way of environmental remediation
         expenditures to be made by Goldamere in respect of the past operation
         of the Savage River Project by the previous owner. Under the terms of
         the Security Trust Deed, the Asset Purchase Price was secured by a
         second lien over the assets of the Savage River Project.

         As a result of a significant weakening of the Australian dollar in
         relation to the U.S. dollar, the Hedging Arrangements required
         Goldamere to incur substantial ongoing currency exchange losses. As an
         interim relief measure, the Lender agreed to allow Goldamere to make
         the monthly U.S. dollar payments required pursuant to the Hedging
         Arrangements at the then prevailing Aus$:U.S.$ exchange rate rather
         than at the specified contract rate. An amount equal to the difference
         between the amount otherwise payable at the specified contract rate and
         the amount actually paid at the then prevailing exchange rate was then
         added to the principal amount of the Project Debt.

         Faced with a deteriorating international market for iron ore and
         continuing weakness in the Australian dollar, the management of
         Goldamere concluded that the economic viability of the Savage River
         Project could not be sustained under the burden of the Project Debt and
         Hedging Arrangement obligations and, in August 2001, approached the
         principal Savage River Project stakeholders to discuss alternatives for
         restructuring the mine plan and financial arrangements of the Savage
         River Project.

         PURCHASE AND SALE OF PROJECT DEBT

         Pursuant to a Project Facility Agreement Substitution Deed dated
         September 10, 2002, Arbutus Holding Ltd. ("Arbutus"), a wholly-owned
         subsidiary of ABM, acquired all of the Lender's rights in respect of
         the Project Debt and assumed all of the Lender's liabilities and
         obligations under the Project Facility Agreement. Pursuant to a
         Security Trust Deed Substitution Deed dated September 10, 2002, Arbutus
         succeeded to all of the Lender's rights, liabilities and obligations
         under the Security Trust Deed. In connection with, and as part of,
         these transactions, all remaining currency exchange transactions and
         obligations under the Hedging Arrangements were closed out and the
         residual liabilities resulting from the closing out of these
         transactions and obligations (the "Close Out Amounts") were added to
         the Project Debt acquired by Arbutus. As consideration for the Project
         Debt (including the Close Out Amounts), Arbutus paid to the Lender cash
         in the amount of Aus$15 million (U.S.$8.2 million).

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         Prior to the close out of the Hedging Arrangements, the aggregate
         principal amount and all accrued interest in respect of the Project
         Debt was approximately Aus$61.5 million (U.S.$33.7 million). After the
         addition of the Close Out Amounts, the total Project Debt acquired by
         Arbutus from the Lender was approximately Aus$74.9 million (U.S.$41
         million).

         REORGANIZATION OF STATE SECURITY

         In connection with Arbutus' acquisition from the Lender of the Project
         Debt and related security, the State agreed to relinquish its security
         under the Security Trust Deed in respect of the unpaid Asset Purchase
         Price. As consideration for the relinquishment, Goldamere agreed to
         lodge with the State a bank guarantee in the amount of Aus$2.8 million
         (U.S.$1.5 million) as substitute security for Goldamere's obligations
         under the Asset Purchase Agreement to either pay the deferred Asset
         Purchase Price in cash or to incur environmental remediation
         expenditures in respect of the Savage River Project in an aggregate
         amount equal to the deferred Purchase Price plus accrued interest.
         Goldamere and the State also agreed upon a variation of the time for,
         and manner of payment of, interest in respect of the Asset Purchase
         Price.

         FINANCIAL IMPACT

         The acquisition of the Project Debt and the related elimination of the
         Hedging Arrangements is expected to save Goldamere approximately
         Aus$21.5 million (U.S.$11.8 million) in annual currency exchange
         losses, Aus$4.3 million (U.S.$2.4 million) per year in related interest
         charges and Aus$74.9 million (U.S.$41 million) in principal repayment
         obligations to the Lender. The transaction will have the effect of
         reducing current and long term liabilities on Ivanhoe's consolidated
         balance sheet by approximately Aus$74.9 million (U.S.$41 million). As a
         result of the substantial write-down in the carrying value of the
         Savage River Project recorded as of the end of fiscal 2001, Ivanhoe
         expects its financial statements for the fiscal quarter ending
         September 30, 2002 to reflect an extraordinary gain, based on the
         acquisition of the Project Debt, of approximately Aus$53 million
         (U.S.$29 million).

6.       RELIANCE ON SECTION 85 (2) OF THE ACT

         Not applicable

7.       OMITTED INFORMATION

         Not applicable

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8.       SENIOR OFFICER

         For further information contact:

         Beverly Bartlett
         Ivanhoe Mines Ltd.
         World Trade Centre
         Suite 654 - 999 Canada Place
         Vancouver, British Columbia
         V6C 3E1

         Telephone:  (604) 688-5755

9.       STATEMENT OF SENIOR OFFICER

         The foregoing accurately discloses the material change referred to
         herein.

         DATED at Vancouver, British Columbia this 16th day of September, 2002.

         IVANHOE MINES LTD.

         Per:       "Beverly Bartlett"
                  --------------------------------------------
                   Beverly Bartlett
                   Corporate Secretary

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