8-A12B

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-A

FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES
PURSUANT TO SECTION 12(b) OR 12(g) OF THE
SECURITIES EXCHANGE ACT OF 1934

RIO TINTO FINANCE (USA) LIMITED	RIO TINTO PLC	RIO TINTO LIMITED
(Exact Name of Registrant as Specified in Its Charter)	(Exact Name of Registrant as Specified in Its Charter)	(Exact Name of Registrant as Specified in Its Charter)
Australia (State of Incorporation or Organization)	England and Wales (State of Incorporation or Organization)	Australia (State of Incorporation or Organization)
Not Applicable (I.R.S. Employer Identification No.)	Not Applicable (I.R.S. Employer Identification No.)	Not Applicable (I.R.S. Employer Identification No.)
Level 33 120 Collins Street Melbourne, Victoria 3000 Australia (Address of Principal Executive offices)	5 Aldermanbury Square London EC2V 7HR United Kingdom (Address of Principal Executive offices)	Level 33 120 Collins Street Melbourne, Victoria 3000 Australia (Address of Principal Executive offices)

If this Form relates to the registration of a class of securities pursuant to Section 12(b) of the Exchange Act and is effective pursuant to General Instruction A.(c), please check the following box. þ	If this Form relates to the registration of a class of securities pursuant to Section 12(g) of the Exchange Act and is effective pursuant to General Instruction A.(d), please check the following box. o
Securities Act registration statement file number to which this form relates:	333-151839
Securities to be registered pursuant to Section 12(b) of the Act:

Title of Each Class
to be so Registered U.S.$2,500,000,000 5.875% Notes due 2013
U.S.$1,750,000,000 6.500% Notes due 2018
U.S.$750,000,000 7.125% Notes due 2028 Name of Each Exchange on Which
Each Class is to be Registered New York Stock Exchange
New York Stock Exchange
New York Stock Exchange

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

TABLE OF CONTENTS

EX-1.2: OFFICER'S CERTIFICATE

     The Registrants have filed with the Securities and Exchange Commission (the “Commission”) pursuant to Rule 424(b) under the Securities Act of 1933 a prospectus supplement, dated June 25, 2008 (the “Prospectus Supplement”), relating to the U.S.$2,500,000,000 5.875% Notes due 2013, the U.S.$1,750,000,000 6.500% Notes due 2018 and the U.S. $750,000,000 7.125% Notes due 2028 (collectively, the “Notes”), which are to be registered hereunder, to a prospectus dated June 23, 2008 (the “Prospectus”) filed under Rule 424(b) and forming a part of the Registrants’ Registration Statement on Form F-3 (File No. 333-151839). The Registrants incorporate by reference the Prospectus Supplement and the Prospectus to the extent set forth below.

Item 1. Description of Registrants’ Securities to be Registered

Reference is made to the information set forth under the headings “Description of Guaranteed Notes” in the Prospectus Supplement and under “Description of Guaranteed Debt Securities” and “Taxation” in the Prospectus.

Item 2. Exhibits

Pursuant to the Instructions as to Exhibits with respect to Form 8-A, the following exhibits are being filed with the Commission in connection with this Registration Statement:

1.1	Indenture, dated as of July 2, 2001, among Rio Tinto Finance (USA) Limited, Rio Tinto plc, Rio Tinto Limited and The Chase Manhattan Bank (incorporated by reference to Exhibit 4.1 to the Registrants’ Registration Statement on Form F-3 (File No. 333-151839) filed with the Commission on June 23, 2008).
1.2	Officer’s Certificate of Rio Tinto Finance (USA) Limited pursuant to Section 301 of the Indenture, dated June 27, 2008, setting forth the terms of its U.S.$2,500,000,000 5.875% Notes due 2013, its U.S.$1,750,000,000 6.500% Notes due 2018 and its U.S$750,000,000 7.125% Notes due 2028.

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SIGNATURE

Pursuant to the requirements of Section 12 of the Securities Exchange Act of 1934, each registrant has duly caused this registration statement or amendment thereto to be signed on its behalf by the undersigned, thereunto duly authorized.

Rio Tinto Finance (USA) Limited
(Registrant)

By:	/s/ Stephen Creese Name: Stephen Ernest Nigel Creese
	Title: Director

Rio Tinto plc
(Registrant)

By:	/s/ Ben Mathews Name: Ben Mathews
	Title: Company Secretary

Rio Tinto Limited
(Registrant)

By:	/s/ Ben Mathews Name: Ben Mathews
	Title: Assistant Secretary

Date: June 27, 2008

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INDEX TO EXHIBITS

Exhibit No.	Exhibit
1.1	Indenture, dated as of July 2, 2001 among Rio Tinto Finance (USA) Limited, Rio Tinto plc, Rio Tinto Limited and The Chase Manhattan Bank (incorporated by reference to Exhibit 4.1 to the Registrants’ Registration Statement on Form F-3 (File No. 333-151839) filed with the Commission on June 23, 2008).
1.2	Officer’s Certificate of Rio Tinto Finance (USA) Limited pursuant to Section 301 of the Indenture, dated June 27, 2008, setting forth the terms of its U.S.$2,500,000,000 5.875% Notes due 2013, its U.S.$1,750,000,000 6.500% Notes due 2018 and its U.S.$750,000,000 7.125% Notes due 2028.

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EX-1.2

Exhibit 1.2

Officer’s Certificate pursuant to Section 301 of the Indenture

$2,500,000,000 5.875%Notes due 2013
$1,750,000,000 6.500% Notes due 2018
$750,000,000 7.125% Notes due 2028

I, Stephen Ernest Nigel Creese, Director of Rio Tinto Finance (USA) Limited (the “Company”), pursuant to Section 301 of the indenture dated July 2, 2001 (the “Indenture”) among the Company, Rio Tinto plc, Rio Tinto Limited and The Bank of New York and pursuant to a resolution duly adopted by the Board of Directors of the Company on June 20, 2008 and a resolution of the Chairman’s Committee of the Board of Directors of each of Rio Tinto plc and Rio Tinto Limited on June 18, 2008, whereby I was authorized to execute and deliver on behalf of the Company all documents, notices, instruments, certificates, forms and communications necessary or desirable to be executed and delivered under or in relation to the issue of the $2,500,000,000 5.875% Notes due 2013, the $1,750,000,000 6.500% Notes due 2018 and the $750,000,000 7.125% Notes due 2028, HEREBY APPROVE AND CONFIRM the following such terms:

2013 Notes
Title:	5.875% Notes due 2013
Principal Amount:	$2,500,000,000
Maturity:	July 15, 2013
Issue Price:	99.625%
Interest Rate:	5.875% per year
Interest Payment Dates:	January 15 and July 15, commencing January 15, 2009
Issue Date:	June 27, 2008
2018 Notes
Title:	6.500% Notes due 2018
Principal Amount:	$1,750,000,000
Maturity:	July 15, 2018
Issue Price:	99.131%

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Interest Rate:	6.500% per year
Interest Payment Dates:	January 15 and July 15, commencing January 15, 2009
Issue Date:	June 27, 2008
2028 Notes
Title:	7.125% Notes due 2028
Principal Amount:	$750,000,000
Maturity:	July 15, 2028
Issue Price:	99.319%
Interest Rate:	7.125% per year
Interest Payment Dates:	January 15 and July 15, commencing January 15, 2009
Issue Date:	June 27, 2008
The following terms apply to each tranche of Notes:
Guarantees	The Notes will be fully and unconditionally guaranteed by each of Rio Tinto plc and Rio Tinto Limited as to principal, interest, premium, if any, and any other additional amounts payable in respect of the Notes.
Form:	The Notes will be issued in registered form and will be represented by Global Securities, which will be executed and delivered in substantially the form attached hereto as Exhibit A. The Notes will be registered in the name of a nominee of The Depository Trust Company and deposited with The Bank of New York, as depositary.
Place of Payment, Paying Agent:	The Bank of New York
	101 Barclay Street
	New York, NY 10286, United States

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Notices and Demands to Company:	Rio Tinto Finance (USA) Limited Level 33 120 Collins Street Melbourne, Victoria 3000 Australia or
	Shannon Crompton Rio Tinto Services Inc. 80 State Street Albany, NY 12207-2543, United States
Payment of Additional Amounts:	All payments of principal and interest in respect of the Notes or the Guarantees will be made free and clear of, and without withholding or deduction for, any taxes, assessments, duties or governmental charges. If withholding or deduction is required by law, the Company or either of Rio Tinto plc or Rio Tinto Limited, as the case may be, must, subject to certain exceptions, pay to each holder of the Notes additional amounts as may be necessary in order that every net payment of principal of and interest on the Notes after deduction or other withholding for or on account of any present or future tax, assessment, duty or other governmental charge, will not be less than the amount that would have been payable on the Notes in the absence of such deduction or withholding.
Optional Tax Redemption:	The Notes may be redeemed at the option of the Company or either of Rio Tinto plc or Rio Tinto Limited upon the occurrence of certain tax events in accordance with the redemption provisions set out in the forms of the Note attached hereto as Exhibit A.
Optional Make-Whole Redemption:	The Company or either of Rio Tinto plc or Rio Tinto Limited may redeem the Notes in whole or in part, at its or their option at any time and from time to time at a redemption price equal to the greater of (i) 100% of the principal amount of the Notes to be redeemed and (ii) as certified to the Trustee by the Company, Rio Tinto plc or Rio Tinto Limited, the sum of the present values of the Remaining Scheduled Payments discounted to the date of redemption on a semi-annual basis (assuming a 360-

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day year consisting of twelve 30-day months) at the Treasury Rate plus 40 basis points, together with, in each case, accrued interest on the principal amount of the Notes to be redeemed to the date of redemption. In connection with such optional redemption the following defined terms apply:

“Treasury Rate” means, with respect to any redemption date, the rate per annum equal to the semi-annual equivalent yield to maturity (computed as of the third business day immediately preceding that redemption date) of the Comparable Treasury Issue, assuming a price for the Comparable Treasury Issue (expressed as a percentage of its principal amount) equal to the Comparable Treasury Price for that redemption date.

“Comparable Treasury Issue” means the United States Treasury security selected by the Independent Investment Banker that would be utilized, at the time of selection and in accordance with customary financial practice, in pricing new issues of corporate debt securities of comparable maturity to the remaining term of the Notes.

“Independent Investment Banker” means one of the Reference Treasury Dealers appointed by the Company to act as the “Independent Investment Banker.”

“Comparable Treasury Price” means, with respect to any redemption date, (i) the average of the bid and asked prices for the Comparable Treasury Issue (expressed in each case as a percentage of its principal amount) on the third business day preceding that redemption date, as set forth in the daily statistical release designated H.15 (519) (or any successor release) published by the Federal Reserve Bank of New York and designated “Composite 3:30 p.m. Quotations for U.S. Government Securities” or (ii) if such release (or any successor release) is not published or does not contain such prices on such business day, (A) the average of the Reference Treasury Dealer Quotations for that redemption date, after excluding the highest and lowest of such Reference Treasury Dealer Quotations, or (B) if the Independent

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Investment Banker for the Notes obtains fewer than four such Reference Treasury Dealer Quotations, the average of all such Quotations.

“Reference Treasury Dealer” means each of Deutsche Bank Securities Inc., J.P. Morgan Securities Inc., Morgan Stanley & Co. Incorporated, Credit Suisse Securities (USA) LLC and Greenwich Capital Markets, Inc. and their respective successors and one other nationally recognized investment banking firm that is a Primary Treasury Dealer specified from time to time by the Company, provided, however, that if any of the foregoing shall cease to be a primary U.S. Government securities dealer in New York City (a “Primary Treasury Dealer”), the Company shall substitute therefor another nationally recognized investment banking firm that is a Primary Treasury Dealer.

“Reference Treasury Dealer Quotation” means, with respect to each Reference Treasury Dealer and any redemption date, the average, as determined by the Independent Investment Banker, of the bid and asked prices for the Comparable Treasury Issue (expressed in each case as a percentage of its principal amount) quoted in writing to the Independent Investment Banker by such Reference Treasury Dealer at 3:30 p.m., New York City time, on the third business day preceding that redemption date.

“Remaining Scheduled Payments” means, with respect to each Note to be redeemed, the remaining scheduled payments of the principal thereof and interest thereon that would be due after the related redemption date but for such redemption, provided, however, that, if that redemption date is not an interest payment date with respect to such Notes, the amount of the next succeeding scheduled interest payment thereon will be reduced by the amount of interest accrued thereon to that redemption date.

Notice of any redemption will be mailed at least 30 days but not more than 60 days before the redemption date to each holder of the Notes to be redeemed. On and after any redemption date, interest will cease to accrue on the Notes or any

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	portion thereof called for redemption. On or before any redemption date, the Company shall deposit with a paying agent (or the Trustee) money sufficient to pay the redemption price of and accrued interest on the Notes to be redeemed on such date. If less than all the Notes are to be redeemed, the Notes to be redeemed shall be selected by the Trustee by such method as the Trustee shall deem fair and appropriate. The redemption price shall be calculated by the Independent Investment Banker and the Company, and the Trustee and any paying agent for the Notes shall be entitled to rely on such calculation.
Change of Control:	If a Change of Control Repurchase Event (as defined below) occurs, unless the Notes are otherwise subject to redemption in accordance with their terms and the Company has elected to exercise its right to redeem the Notes, it will make an offer to each Holder comprising that series to repurchase all or any part (in integral multiples of U.S.$1,000) of that Holder’s Notes at a repurchase price in cash equal to 101% of the aggregate principal amount of Notes repurchased plus any accrued and unpaid interest on the Notes repurchased to the date of repurchase. Within 30 days following any Change of Control Repurchase Event or, at the Company’s option, prior to any Change of Control (as defined below), but after the public announcement of an impending Change of Control, it will mail a notice to each Holder, with a copy to the Trustee, describing the transaction or transactions that constitute or may constitute the Change of Control Repurchase Event and offering to repurchase Notes on the payment date specified in the notice, which date will be no earlier than 30 days and no later than 60 days from the date such notice is mailed. The notice shall, if mailed prior to the date of consummation of the Change of Control, state that the offer to repurchase is conditional on the Change of Control Repurchase Event occurring on or prior to the payment date specified in the notice.
	The Company will comply with the requirements of Rule 14e-1 under the Exchange Act and any other securities laws and regulations thereunder, to the extent those laws and regulations are applicable
	in

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connection with the repurchase of the Notes as a result of a Change of Control Repurchase Event. To the extent that the provisions of any securities laws or regulations conflict with the Change of Control Repurchase Event provisions of the Notes, the Company will comply with the applicable securities laws and regulations and will not be deemed to have breached its obligations under the Change of Control Repurchase Event provisions of the Notes by virtue of such conflict.

On the Change of Control Repurchase Event payment date, the Company will, to the extent lawful, accept for payment all Notes or portions of Notes (in integral multiples of U.S.$1,000) properly tendered pursuant to its offer; deposit with the Trustee an amount equal to the aggregate repurchase price in respect of all Notes or portions of Notes properly tendered; and deliver or cause to be delivered to the Trustee the Notes properly accepted, together with an officers’ certificate stating the aggregate principal amount of Notes being purchased by the Company.

The Trustee will promptly pay to each holder of Notes properly tendered the repurchase price for such Notes, provided that it has received such repurchase price from the Company, and the Trustee will promptly at the Company’s direction authenticate and transfer (or cause to be transferred by book-entry) to each Holder a new Note equal in principal amount to any unpurchased portion of any Notes surrendered; provided that each new Note will be in a principal amount of U.S.$1,000 or an integral multiple of U.S.$1,000 in excess thereof. The Company will not be required to make an offer to repurchase the Notes upon a Change of Control Repurchase Event if a third party makes such an offer in the manner, at the times and otherwise in compliance with the requirements for an offer made by the Company, and such third party purchases all Notes properly tendered and not withdrawn under its offer.

“Below Investment Grade Rating Event” means the Notes are rated below Investment Grade by each of the Rating Agencies on any date from the date of the

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public notice of an arrangement that could result in a Change of Control until the end of the 60-day period following public notice of the occurrence of a Change of Control (which period shall be extended so long as the rating of the Notes is under publicly announced consideration for possible downgrade by any of the Rating Agencies); provided that a Below Investment Grade Rating Event otherwise arising by virtue of a particular reduction in rating shall not be deemed to have occurred in respect of a particular Change of Control (and thus shall not be deemed a Below Investment Grade Rating Event for purposes of the definition of Change of Control Repurchase Event set out below) if each Rating Agency making the reduction in rating to which this definition would otherwise apply does not announce or publicly confirm or inform the Company or the Trustee in writing at its request that the reduction was the result, in whole or in part, of any event or circumstance comprised of or arising as a result of, or in respect of, the applicable Change of Control (whether or not the applicable Change of Control shall have occurred at the time of the Below Investment Grade Rating Event).

“Change of Control” means the occurrence of any of the following:

(1) the direct or indirect sale, transfer, conveyance or other disposition (other than by way of merger or consolidation), in one or a series of related transactions, of all or substantially all of the properties or assets of Rio Tinto plc or Rio Tinto Limited to any “person” (as that term is used in Section 13(d)(3) of the Exchange Act), other than one or more members of the Rio Tinto Group;

(2) the consummation of any transaction (including, without limitation, any merger or consolidation) the result of which is that any “person” (as that term is used in Section 13(d)(3) of the Exchange Act) at any time directly or indirectly own(s) or acquire(s) such proportion of the issued or allotted ordinary share capital of Rio Tinto plc or Rio Tinto Limited which shall, or, if such transaction involves the conversion or exchange of such share capital for cash, securities or other property, such proportion of share capital of, or

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other relevant economic interest in, the surviving entity as a result of such transaction as shall, in aggregate, be entitled to exercise or direct the exercise of more than 50% of the rights to vote to elect members of the board of directors of Rio Tinto plc and Rio Tinto Limited or such surviving entity, provided that

(i) for the avoidance of doubt, no Change of Control shall occur solely as a result of either of Rio Tinto plc or Rio Tinto Limited and/or any of its subsidiaries at any time owning or acquiring the relevant proportion of the issued or allotted ordinary share capital of Rio Tinto Limited or Rio Tinto plc, respectively, but in such circumstances whether or not a Change of Control shall occur whether in relation to such event or thereafter shall be determined by reference to (A) the Collapsed DLC Test; or (B) the test set out in this sub-paragraph (2) immediately preceding this proviso applied solely to whichever of Rio Tinto plc or Rio Tinto Limited owns (whether directly or through one or more of its subsidiaries) the relevant proportion of the issued or allotted ordinary share capital of Rio Tinto Limited or Rio Tinto plc, and

(ii) no Change of Control shall be deemed to occur if all or substantially all of the holders of the issued or allotted ordinary share capital or other relevant economic interests of the relevant person or, as the case may be, surviving entity immediately after the event which would otherwise have constituted a Change of Control were the holders of the issued or allotted ordinary share capital of each or either of Rio Tinto plc or Rio Tinto Limited with the same (or substantially the same) pro rata economic interests in the share capital or relevant economic interests of the relevant person or, as the case may be, surviving entity, as such shareholders had in the issued or allotted ordinary share capital of each or either of Rio Tinto plc or Rio Tinto Limited, respectively, immediately prior to such

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event; or

(3) the first day on which a majority of the members of the board of directors of either Rio Tinto plc or Rio Tinto Limited are not Continuing Directors.

“Change of Control Repurchase Event” means the occurrence of both a Change of Control and a Below Investment Grade Rating Event.

the “Collapsed DLC Test’’ shall be deemed to be satisfied if any “person” (as that term is used in Section 13(d)(3) of the Exchange Act) at any time directly or indirectly own(s) or acquire(s) more than 50% of the issued or allotted ordinary share capital of whichever of Rio Tinto plc or Rio Tinto Limited owns (whether directly or through one or more of its subsidiaries) the relevant proportion of the issued or allotted ordinary share capital of Rio Tinto Limited or Rio Tinto plc, respectively.

“Continuing Directors” means, as of any date of determination, any member of the board of directors of either of Rio Tinto plc or Rio Tinto Limited who (1) was a member of such board on the date of the issuance of the guarantee by either entity; or (2) was nominated for election, appointed or elected to such board with the approval of a majority of the Continuing Directors who were members of such board at the time of such nomination, appointment or election.

“Investment Grade” means a rating of Baa3 or better by Moody’s (or its equivalent under any successor rating categories of Moody’s) and a rating of BBB- or better by S&P (or its equivalent under any successor rating categories of S&P); or the equivalent investment grade credit rating from any additional Rating Agency or Rating Agencies selected by the Company.

“Moody’s” means Moody’s Investors Service Inc. and its successors.

“Rating Agency” means (1) each of Moody’s and S&P; and (2) if any of Moody’s or S&P ceases to rate the Notes or fails to make a rating of the Notes publicly available for reasons outside of the Company’s control, a “nationally recognized

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statistical rating organization” within the meaning of Rule 15c3-1(c)(2)(vi)(F) under the Exchange Act, selected by the Company as a replacement agency for Moody’s or S&P, as the case may be. “Rio Tinto Group” means Rio Tinto plc and Rio Tinto Limited and their respective subsidiaries taken as a whole. “S&P” means Standard & Poor’s Ratings Services, a division of McGraw-Hill, Inc. and its successors.

Other Terms:

The other terms of the Notes shall be substantially as set forth in the Indenture dated July 2, 2001, the Prospectus dated June 23, 2008 and the Prospectus Supplement dated June 25, 2008 relating to the Notes and the forms of the Notes attached hereto as Exhibit A.

Dated: June 27, 2008

/s/ Stephen Creese  

Name: Stephen Ernest Nigel Creese

Title: Director

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