FREEPORT-MCMORANCOPPER & GOLD INC., Issuer, and U.S. BANK NATIONAL ASSOCIATION, Trustee SECONDSUPPLEMENTAL INDENTURE Dated as of February 13, 2012 $500,000,000 aggregate principal amount of 2.15% Senior Notes Due 2017

Exhibit 4.3

FREEPORT-MCMORAN COPPER & GOLD INC.,

Issuer,

and

U.S. BANK NATIONAL ASSOCIATION,

Trustee

SECOND SUPPLEMENTAL INDENTURE

Dated as of February 13, 2012

$500,000,000 aggregate principal amount of 2.15% Senior Notes Due 2017

SECOND SUPPLEMENTAL INDENTURE, dated as of February 13, 2012, between FREEPORT- MCMORAN COPPER & GOLD INC., a Delaware corporation (the “Issuer”), and U.S. BANK NATIONAL ASSOCIATION, a national banking association, as Trustee (the “Trustee”).

W I T N E S S E T H:

WHEREAS, the Issuer and the Trustee executed and delivered an Indenture, dated as of February 13, 2012 (the “Base Indenture” and, as supplemented hereby, the “Indenture”), to provide for the issuance by the Issuer from time to time of senior debt securities evidencing its unsecured indebtedness, to be issued in one or more series as provided in the Indenture;

WHEREAS, pursuant to a Board Resolution, the Issuer has authorized the issuance of a series of securities evidencing its senior indebtedness, consisting initially of $500,000,000 aggregate principal amount of 2.15% Senior Notes due 2017 (the “Notes”);

WHEREAS, the entry into this Second Supplemental Indenture by the parties hereto is in all respects authorized by the provisions of the Indenture;

WHEREAS, the Issuer desires to establish the terms of the Notes in accordance with Section 2.01 of the Base Indenture and to establish the form of the Notes in accordance with Section 2.02 of the Base Indenture; and

WHEREAS, all acts and requirements necessary to make this Second Supplemental Indenture a valid and legally binding indenture and agreement according to its terms have been done.

NOW, THEREFORE, for and in consideration of the premises, the Issuer and the Trustee mutually covenant and agree for the equal and proportionate benefit of the respective holder from time to time of the Notes as follows:

ARTICLE 1

Section 1.01. Terms of Notes. Pursuant to Section 2.01 of the Base Indenture, the following terms relating to the Notes are hereby established:

(a) The Notes shall constitute a series of securities having the title “2.15% Senior Notes due 2017”.

(b) The initial aggregate principal amount of the Notes is $500,000,000. There is no limit upon the aggregate principal amount of Notes of this series that may be authenticated and delivered under the Indenture. The Issuer may, from

time to time, without notice to or the consent of the Holders hereof, create and issue additional Notes of this series ranking equally and ratably with the Notes in all respects (other than the issue price, the date of the issuance, the payment of interest accruing prior to the issue date of such additional Notes, the first payment of interest following the issue date of such additional Notes and, in some cases, the first payment of interest following the issue date of such additional Notes). Any such additional Notes shall be consolidated and form a single series with the Notes initially issued, including for purposes of voting and redemptions; provided that if the additional Notes are not fungible with the Notes of this series initially issued for U.S. federal income tax purposes, such additional Notes shall have a separate CUSIP number.

(c) The entire outstanding principal of the Notes shall be payable on March 1, 2017 plus any unpaid interest accrued to such date.

(d) The rate at which the Notes shall bear interest shall be 2.15% per annum;

(e) The date from which interest shall accrue on the Notes shall be February 13, 2012 or from the most recent Interest Payment Date to which interest has been paid; the Interest Payment Dates for the Notes on which interest will be payable shall be March 1 and September 1 in each year, beginning September 1, 2012; the regular record dates for the interest payable on the Notes on any Interest Payment Date shall be the February 15 and August 15 preceding the applicable Interest Payment Date; interest payable at maturity shall be paid to the same person to whom principal of the Notes is payable; and the basis upon which interest on the Notes shall be calculated shall be that of a 360-day year consisting of twelve 30-day months.

(f) not applicable

(g) the provisions of Section 1.02 herein shall be applicable to the Notes

(h) not applicable

(i) The form of the Notes is attached hereto as Exhibit A.

(j) The Notes shall be issuable in denominations equal to two thousand U.S. dollars ($2,000) and integral multiples of $1,000 in excess thereof.

(k) The Notes shall be issued as a Global Security and The Depository Trust Company, New York, New York shall be the initial Depository.

(l) The Notes are not convertible into shares of common stock or other securities of the Issuer.

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(m) not applicable

(n) not applicable

(o) the provisions of Section 1.03 herein shall be applicable to the Notes

(p) not applicable

(q) Payments of the principal of and interest on the Notes shall be made in U.S. dollars, and the Notes shall be denominated in U.S. dollars. The Notes shall not be subordinated to any other debt of the Issuer, and shall constitute senior unsecured obligations of the Issuer.

Section 1.02 Optional Redemption

(a) The Notes will be redeemable, at the option of the Issuer, at any time and from time to time, in whole or in part, prior to the maturity date for the Notes. The Notes shall be redeemable at the redemption price, to be calculated by the Issuer, plus accrued and unpaid interest to the date of redemption, equal to the greater of (1) 100% of the principal amount of the Notes to be redeemed and (2) the sum of the present values of the remaining scheduled payments of principal and interest on the Notes to be redeemed (not including interest accrued to the date of redemption) discounted to the date of redemption on a semi-annual basis (assuming a 360-day year consisting of twelve 30-day months) at the Treasury Rate plus 20 basis points, plus accrued and unpaid interest on the Notes to be redeemed to the date of redemption.

(i) In case the Issuer shall desire to exercise such right to redeem all or, as the case may be, a portion of the Notes in accordance with Section 1.01(a) above, the Issuer shall (with a copy provided to the Trustee), or shall cause the Trustee to, give notice of such redemption to holders of the Notes to be redeemed by mailing, first class postage prepaid, a notice of such redemption not less than 30 days and not more than 60 days before the date fixed for redemption to such holders at their last addresses as they shall appear upon the Security Register. Any notice that is mailed in the manner herein provided shall be conclusively presumed to have been duly given, whether or not the registered holder received the notice. In any case, failure duly to give such notice to the holder of any Note designated for redemption in whole or in part, or any defect in the notice, shall not affect the validity of the proceedings for the redemption of any other Note.

(ii) As used herein:

“Comparable Treasury Issue” means the United States Treasury security selected by an Independent Investment Banker that would be utilized, at the time

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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.

“Comparable Treasury Price” means, with respect to any redemption date, (1) the average of the Reference Treasury Dealer Quotations for such redemption date, after excluding the highest and lowest of such Reference Treasury Dealer Quotations, or (2) if the Issuer obtains fewer than four such Reference Treasury Dealer Quotations, the average of all Quotations obtained.

“Independent Investment Banker” means one of the Reference Treasury Dealers appointed by the Issuer.

“Reference Treasury Dealer” means each of J.P. Morgan Securities LLC and Merrill Lynch, Pierce, Fenner & Smith Incorporated, their respective successors and up to two other nationally recognized investment banking firms that are Primary Treasury Dealers specified from time to time by the Issuer, except that if any of the foregoing ceases to be a primary U.S. government securities dealer in the United States (a “Primary Treasury Dealer”), the Issuer is required to designate as a substitute another nationally recognized investment banking firm that is a Primary Treasury Dealer.

“Reference Treasury Dealer Quotations” means, with respect to each Reference Treasury Dealer and any redemption date, the average, as determined by the Issuer, 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 Issuer by such Reference Treasury Dealer as of 3:30 p.m., New York City time, on the third Business Day preceding such redemption date.

“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 such 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 such redemption date.

The provisions of Article 3, Section 2.05(c) and Section 2.05(d) of the Base Indenture in respect of the Notes shall apply to any optional redemption of the Notes except when such provisions conflict with the foregoing.

Section 1.03 Change of Control Triggering Event

(a) Upon the occurrence of a Change of Control Triggering Event with respect to the Notes, unless the Issuer has exercised its right to redeem the Notes pursuant to Section 1.02 by giving irrevocable notice to the Trustee in accordance

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with the Indenture, each holder of Notes shall have the right to require the Issuer to purchase all or a portion of such holder’s Notes pursuant to the offer described in this Section 1.03 (the “Change of Control Offer”), at a purchase price equal to 101% of the principal amount thereof plus accrued and unpaid interest, if any, to the date of purchase (the “Change of Control Payment”), subject to the rights of holders of Notes on the relevant record date to receive interest due on the relevant interest payment date.

(b) Unless the Issuer has exercised its right to redeem the Notes, within 30 days following the date upon which the Change of Control Triggering Event occurred with respect to the Notes or, at the Issuer’s option, prior to any Change of Control but after the public announcement of the pending Change of Control, the Issuer shall be required to send, by first class mail, a notice to each holder of Notes, with a copy to the Trustee, which notice shall govern the terms of the Change of Control Offer. Such notice shall state, among other things, the purchase date, which must be no earlier than 30 days nor later than 60 days from the date such notice is mailed, other than as may be required by law (the “Change of Control Payment Date”). The notice, if mailed prior to the date of consummation of the Change of Control, shall state that the Change of Control Offer is conditioned on the Change of Control being consummated on or prior to the Change of Control Payment Date.

(c) On the Change of Control Payment Date, the Issuer shall, to the extent lawful:

(i) accept or cause a third party to accept for payment all Notes or portions of Notes properly tendered pursuant to the Change of Control Offer;

(ii) deposit or cause a third party to deposit with the paying agent an amount equal to the Change of Control Payment in respect of all Notes or portions of Notes properly tendered; and

(iii) 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 or portions of Notes being repurchased and that all conditions precedent to the Change of Control Offer and to the repurchase by the Issuer of Notes pursuant to the Change of Control Offer have been complied with.

(d) The Issuer shall not be required to make a Change of Control Offer with respect to the Notes if a third party makes such an offer in the manner, at the times and otherwise in compliance with the requirements for such an offer made by the Issuer and such third party purchases all Notes properly tendered and not withdrawn under its offer.

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(e) The Issuer shall comply in all material respects 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 connection with the repurchase of the Notes as a result of a Change of Control Triggering Event. To the extent that the provisions of any such securities laws or regulations conflict with the Change of Control Offer provisions of the Notes, the Issuer shall comply with those securities laws and regulations and shall not be deemed to have breached its obligations under the Change of Control Offer provisions of the Notes by virtue of any such conflict.

(f) As used herein:

“Change of Control” means the occurrence of any of the following after the date of issuance of the Notes:

(i) the direct or indirect sale, lease, 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 assets of the Issuer and its subsidiaries taken as a whole to any “person” or “group” (as those terms are used in Section 13(d)(3) of the Exchange Act) other than to the Issuer or one of its subsidiaries;

(ii) the consummation of any transaction (including, without limitation, any merger or consolidation) the result of which is that any “person” or “group” (as those terms are used in Section 13(d)(3) of the Exchange Act, it being agreed that an employee of the Issuer or any of its subsidiaries for whom shares are held under an employee stock ownership, employee retirement, employee savings or similar plan and whose shares are voted in accordance with the instructions of such employee shall not be a member of a “group” (as that term is used in Section 13(d)(3) of the Exchange Act) solely because such employee’s shares are held by a trustee under said plan) becomes the “beneficial owner” (as defined in Rules 13d-3 and 13d-5 under the Exchange Act), directly or indirectly, of Voting Stock representing more than 50% of the voting power of the Issuer’s outstanding Voting Stock or of the Voting Stock of any of the Issuer’s direct or indirect parent companies;

(iii) the Issuer consolidates with, or merges with or into, any Person, or any Person consolidates with, or merges with or into, the Issuer, in any such event pursuant to a transaction in which any of the Issuer’s outstanding Voting Stock or Voting Stock of such other Person is converted into or exchanged for cash, securities or other property, other than any such transaction where the Issuer’s Voting Stock outstanding immediately prior to such transaction constitutes, or is converted into or

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exchanged for, Voting Stock representing at least a majority of the voting power of the Voting Stock of the surviving Person immediately after giving effect to such transaction;

(iv) the first day on which a majority of the members of the Board of Directors or the board of directors of any of the Issuer’s direct or indirect parent companies are not Continuing Directors; or

(v) the adoption of a plan relating to the Issuer’s liquidation or dissolution.

Notwithstanding the foregoing, a transaction will not be deemed to involve a Change of Control solely because the Issuer becomes a direct or indirect wholly-owned subsidiary of a holding company if the direct or indirect holders of the Voting Stock of such holding company immediately following that transaction are substantially the same as the holders of the Issuer’s Voting Stock immediately prior to that transaction.

“Change of Control Triggering Event” means, with respect to the Notes, (i) the rating of the Notes is lowered by each of the Rating Agencies on any date during the period (the “Trigger Period”) commencing on the earlier of (a) the occurrence of a Change of Control and (b) the first public announcement by the Issuer of any Change of Control (or pending Change of Control), and ending 60 days following consummation of such Change of Control (which Trigger Period will be extended following consummation of a Change of Control for so long as any of the Rating Agencies has publicly announced that it is considering a possible ratings change), and (ii) the Notes are rated below Investment Grade by each of the Rating Agencies on any day during the Trigger Period; provided that a Change of Control Trigger Event will not be deemed to have occurred in respect of a particular Change of Control if each Rating Agency making the reduction in rating does not publicly announce or confirm or inform the Trustee at the Issuer’s 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 Change of Control.

Notwithstanding the foregoing, no Change of Control Triggering Event will be deemed to have occurred in connection with any particular Change of Control unless and until such Change of Control has actually been consummated.

“Continuing Director” means, as of any date of determination, any member of the applicable board of directors who: (1) was a member of such board of directors on the date of issuance of the Notes or (2) was nominated for election, elected or appointed to such board of directors with the approval of a majority of the Continuing Directors who were members of such board of directors at the time of such nomination, election or appointment (either by a specific vote or by

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approval of a proxy statement in which such member was named as a nominee for election as a director).

“Investment Grade” means a rating of Baa3 or better by Moody’s (or its equivalent under any successor rating category of Moody’s) and a rating of BBB- or better by S&P (or its equivalent under any successor rating category of S&P), and the equivalent investment grade credit rating from any replacement rating agency or rating agencies selected by the Issuer under the circumstances permitting the Issuer to select a replacement agency and in the manner for selecting a replacement agency, in each case as set forth in the definition of “Rating Agency.”

“Moody’s” means Moody’s Investors Service, Inc., a subsidiary of Moody’s Corporation, and its successors.

“Rating Agency” means each of Moody’s and S&P; provided, that if any of Moody’s or S&P ceases to provide rating services to issuers or investors, the Issuer may appoint another “nationally recognized statistical rating organization” within the meaning of Rule 15c3-1(c)(2)(vi)(F) under the Exchange Act as a replacement for such Rating Agency.

“S&P” means Standard & Poor’s Ratings Services, a division of The McGraw-Hill Companies, Inc., and its successors.

“Voting Stock” of any specified Person as of any date means the capital stock of such Person that is at the time entitled to vote generally in the election of the board of directors of such Person.

ARTICLE 2

MISCELLANEOUS

Section 2.01 . Definitions. Capitalized terms used but not defined in this Second Supplemental Indenture shall have the meanings ascribed thereto in the Base Indenture.

Section 2.02 . Confirmation of Indenture. The Indenture, as heretofore supplemented and amended and as further supplemented and amended by this Second Supplemental Indenture, is in all respects ratified and confirmed, and the Indenture, this Second Supplemental Indenture and all indentures supplemental thereto shall be read, taken and construed as one and the same instrument.

This Second Supplemental Indenture supplements and, to the extent inconsistent therewith, replaces the provisions of the Base Indenture, to which provisions reference is hereby made. The changes, modifications and

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supplements to the Base Indenture effected by this Second Supplemental Indenture shall be applicable only with respect to, and govern the terms of, the Notes and shall not apply to any other Securities that have been or may be issued under the Indenture unless a supplemental indenture with respect to such other Securities specifically incorporates such changes, modifications and supplements.

Section 2.03 . Concerning the Trustee. The Trustee assumes no duties, responsibilities or liabilities by reason of this Second Supplemental Indenture other than as set forth in the Indenture and, in carrying out its responsibilities hereunder, shall have all of the rights, protections and immunities which it possesses under the Indenture. The Trustee makes no representations as to the validity or sufficiency of this Second Supplemental Indenture. The recitals herein are deemed to be those of the Issuer and not of the Trustee.

Section 2.04 . Governing Law. This Second Supplemental Indenture, the Indenture and the Notes shall be deemed to be a contract made under the internal laws of the State of New York, and for all purposes shall be construed in accordance with the laws of said State.

Section 2.05 . Separability. In case any one or more of the provisions contained in this Second Supplemental Indenture or the Notes shall for any reason be held to be invalid, illegal or unenforceable in any respect, such invalidity, illegality or unenforceability shall not affect any other provisions of this Second Supplemental Indenture or the Notes, but this Second Supplemental Indenture or the Notes shall be construed as if such invalid or illegal or unenforceable provision had never been contained herein or therein.

Section 2.06 . Counterparts. This Second Supplemental Indenture may be executed in any number of counterparts, each of which shall be an original, but such counterparts shall together constitute but one and the same instrument.

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IN WITNESS WHEREOF, this Second Supplemental Indenture has been duly executed by the Issuer and the Trustee as of the day and year first written above.

Exhibit A

UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITARY TRUST COMPANY, A NEW YORK CORPORATION (“DTC”), TO THE ISSUER OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE, OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR IN SUCH OTHER NAME AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC (AND ANY PAYMENT IS MADE TO CEDE & CO. OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC), ANY TRANSFER, PLEDGE, OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL INASMUCH AS THE REGISTERED OWNER HEREOF, CEDE & CO, HAS AN INTEREST HEREIN.

UNLESS AND UNTIL IT IS EXCHANGED IN WHOLE OR IN PART FOR SECURITIES IN DEFINITIVE FORM IN ACCORDANCE WITH THE PROVISIONS OF THE INDENTURE AND THE TERMS OF THE SECURITIES AND EXCEPT AS OTHERWISE PROVIDED IN SECTION 2.11 OF THE BASE INDENTURE, THIS NOTE MAY NOT BE TRANSFERRED EXCEPT AS A WHOLE BY DTC TO A NOMINEE OF DTC OR BY A NOMINEE OF DTC TO DTC OR ANOTHER NOMINEE OF DTC OR BY DTC OR ANY SUCH NOMINEE TO A SUCCESSOR DEPOSITARY OR A NOMINEE OF SUCH SUCCESSOR DEPOSITARY.

FREEPORT-MCMORAN COPPER & GOLD INC.

2.15% Senior Notes due 2017

FREEPORT-MCMORAN COPPER & GOLD INC., a Delaware corporation (the “Issuer”, which term includes any successor corporation under the Indenture hereinafter referred to), for value received, hereby promises to pay to CEDE & Co., or its registered assigns, the principal sum of [•] dollars ($[•]) (which aggregate principal amount may from time to time be increased or decreased to such other aggregate principal amounts by adjustments made on the Schedule of Increases or Decreases in Global Security attached hereto) on March 1, 2017 and to pay interest on said principal sum from February 13, 2012 or from

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the most recent interest payment date (each such date, an “Interest Payment Date”) to which interest has been paid or duly provided for semiannually on March 1 and September 1 of each year commencing September 1, 2012 at the rate of 2.15% per annum until the principal hereof shall have become due and payable, and on any overdue principal and premium, if any, and (without duplication and to the extent that payment of such interest is enforceable under applicable law) on any overdue installment of interest at the same rate per annum. The amount of interest payable on any Interest Payment Date shall be computed on the basis of a 360-day year of twelve 30-day months. In the event that any date on which interest is payable on this Note is not a Business Day, then payment of interest payable on such date will be made on the next succeeding day which is a Business Day (and without any interest or other payment in respect of any such delay). The interest installment so payable, and punctually paid or duly provided for, on any Interest Payment Date will, as provided in the Indenture (hereafter defined), be paid to the person in whose name this Note (or one or more Predecessor Securities, as defined in said Indenture) is registered at the close of business on the regular record date for such interest installment which shall be the February 15 or August 15 preceding such Interest Payment Date, except that interest payable at maturity shall be paid to the same person to whom principal of the Notes is payable. Any such interest installment that is payable, but is not punctually paid or duly provided for on any Interest Payment Date (as defined in the Indenture, the “Defaulted Interest”) shall forthwith cease to be payable to the registered holders on such regular record date by virtue of having been such registered holder, and such Defaulted Interest shall be paid by the Issuer, at its election, (i) to the person in whose name this Note (or one or more Predecessor Securities) is registered at the close of business on a special record date for the payment of such Defaulted Interest, which shall not be more than 15 nor less than 10 days prior to the date of the proposed payment, and not less than 10 days after the receipt by the Trustee of the notice of the proposed payment or (ii) in any other lawful manner not inconsistent with the requirements of any securities exchange on which the Notes may be listed, and upon such notice as may be required by such exchange, all as more fully provided in the Indenture. The principal of (and premium, if any) and the interest on this Note shall be payable at the office or agency of the Issuer maintained for that purpose in any coin or currency of the United States of America which at the time of payment is legal tender for payment of public and private debts. Notwithstanding the foregoing, so long as the registered holder of this Note is Cede & Co., the payment of the principal of (and premium, if any) and interest on this Note will be made at such place and to such account as may be designated by DTC.

The indebtedness evidenced by this Note is, to the extent provided in the Indenture, senior and unsecured and will rank in right of payment on parity with all other senior unsecured obligations of the Issuer.

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This Note shall not be entitled to any benefit under the Indenture hereinafter referred to, be valid or become obligatory for any purpose until the Certificate of Authentication hereon shall have been signed by or on behalf of the Trustee.

The provisions of this Note are continued on the reverse side hereof and such continued provisions shall for all purposes have the same effect as though fully set forth at this place.

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IN WITNESS WHEREOF, the Issuer has caused this instrument to be executed.

Dated: February 13, 2012

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CERTIFICATE OF AUTHENTICATION

This is one of the Notes of the series of Notes described in the within-mentioned Indenture.

U.S. BANK NATIONAL ASSOCIATION, as Trustee

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ASSIGNMENT FORM

FOR VALUE RECEIVED, the undersigned hereby sells, assigns and transfers to

(Insert Social Security number or other identifying number of assignee)

(Please print or typewrite name and address, including zip code of assignee)

the within Note of Freeport-McMoRan Copper & Gold Inc. and hereby does irrevocably constitute and appoint

Attorney to transfer said Note on the books of the within-named Issuer with full power of substitution in the premises.

Signature(s) must be guaranteed by an eligible Guarantor Institution (banks, stock brokers, savings and loan associations and credit unions) with membership in an approved signature guarantee medallion program pursuant to Securities and Exchange Commission Rule 17Ad-15.

NOTICE: The signature to this assignment must correspond with the name as it appears on the first page of the within Note in every particular, without alteration or enlargement or any change whatever.

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SCHEDULE OF INCREASES OR DECREASES IN GLOBAL SECURITY

FREEPORT-MCMORAN COPPER & GOLD INC.

2.15% Senior Notes due 2017

The initial aggregate principal amount of this Global Security is $[•]. The following increases or decreases in this Global Security have been made:

No: _____

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[REVERSE SIDE OF NOTE]

FREEPORT-MCMORAN COPPER & GOLD INC.

2.15% Senior Notes due 2017

This Note is one of a duly authorized series of Securities (referred to in the Base Indenture (hereafter defined)), of the Issuer (herein sometimes referred to as the “Notes”), all such Securities issued or to be issued in one or more series under and pursuant to an indenture (the “Base Indenture”) dated as of February 13, 2012, between the Issuer and U.S. Bank National Association, as Trustee (the “Trustee”), as supplemented in the case of the Notes by the Second Supplemental Indenture (the “Supplemental Indenture”) dated as of February 13, 2012, between the Issuer and the Trustee (the Base Indenture, as so supplemented, the “Indenture”), to which Indenture and all indentures supplemental thereto reference is hereby made for a description of the rights, limitations of rights, obligations, duties and immunities thereunder of the Trustee, the Issuer and the holders of the Notes. The initial aggregate principal amount of the Notes is $[•]. There is no limit upon the aggregate principal amount of Notes of this series that may be authenticated and delivered under the Indenture. The Issuer may, from time to time, without notice to or the consent of the Holders hereof, create and issue additional Notes of this series ranking equally and ratably with the Notes in all respects (other than the issue price, the date of the issuance, the payment of interest accruing prior to the issue date of such additional Notes, the first payment of interest following the issue date of such additional Notes and, in some cases, the first payment of interest following the issue date of such additional Notes). Any such additional Notes shall be consolidated and form a single series with the Notes initially issued, including for purposes of voting and redemptions; provided that if the additional Notes are not fungible with the Notes of this series initially issued for U.S. federal income tax purposes, such additional Notes shall have a separate CUSIP number.

The Notes will be redeemable, at the option of the Issuer, at any time and from time to time, in whole or in part, prior to the maturity date for the Notes. The Notes shall be redeemable at the redemption price, to be calculated by the Issuer, plus accrued and unpaid interest to the date of redemption, equal to the greater of (1) 100% of the principal amount of the Notes to be redeemed and (2) the sum of the present values of the remaining scheduled payments of principal and interest on the Notes to be redeemed (not including interest accrued to the date of redemption) discounted to the date of redemption on a semi-annual basis (assuming a 360-day year consisting of twelve 30-day months) at the Treasury Rate plus 20 basis points, plus accrued and unpaid interest on the Notes to be redeemed to the date of redemption.

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In case the Issuer shall desire to exercise such right to redeem all or, as the case may be, a portion of the Notes, the Issuer shall (with a copy provided to the Trustee), or shall cause the Trustee to, give notice of such redemption to holders of the Notes to be redeemed by mailing, first class postage prepaid, a notice of such redemption not less than 30 days and not more than 60 days before the date fixed for redemption to such holders at their last addresses as they shall appear upon the Security Register. Any notice that is mailed in the manner herein provided shall be conclusively presumed to have been duly given, whether or not the registered holder received the notice. In any case, failure duly to give such notice to the holder of any Note designated for redemption in whole or in part, or any defect in the notice, shall not affect the validity of the proceedings for the redemption of any other Note.

Upon the occurrence of a Change of Control Triggering Event with respect to the Notes, unless the Issuer has exercised its right to redeem the Notes pursuant to Section 1.02 of the Supplemental Indenture, by giving irrevocable notice to the Trustee in accordance with the Indenture, each holder of Notes shall have the right to require the Issuer to purchase all or a portion of such holder’s Notes, at a purchase price equal to 101% of the principal amount thereof plus accrued and unpaid interest, if any, to the date of purchase, subject to the rights of holders of Notes on the relevant record date to receive interest due on the relevant interest payment date as provided in, and subject to the terms of, the Indenture.

The Indenture contains provisions permitting the Issuer and the Trustee, with the consent of the holders of not less than a majority in aggregate principal amount of the Securities of all of the series at the time Outstanding affected thereby (all such series voting together as a single class), as defined in the Indenture, to execute supplemental indentures for the purpose of adding any provisions to or changing in any manner or eliminating any of the provisions of the Base Indenture or of any supplemental indenture or of modifying in any manner not covered by Section 9.01 of the Base Indenture the rights of the holders of the Notes; provided, however, that no such supplemental indenture shall, without the consent of the holders of each Note then Outstanding and affected thereby (i) extend the fixed maturity of any Securities, including the Notes, or reduce the principal amount thereof, or reduce the rate or extend the time of payment of interest thereon, or reduce any premium payable upon the redemption thereof, or (ii) reduce the aforesaid percentage of Securities, the holders of which are required to consent to any such supplemental indenture. The Indenture also contains provisions permitting the holders of a majority in aggregate principal amount of the Securities of all series at the time Outstanding affected thereby (all such series voting together as a single class except with respect to a default in the payment of the principal of or premium, if any, or interest on any Securities, including the Notes, in which case, each such affected series voting as a separate class), on behalf of the holders of all of the Securities of such series, to waive any past default in the performance of any of the

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covenants contained in the Base Indenture or established pursuant to the Base Indenture with respect to such series and its consequences, except a default in the payment of the principal of, or premium, if any, or interest on, any of the Securities of any such series as and when the same shall become due by the terms of such Securities otherwise than by acceleration (unless such default has been cured and a sum sufficient to pay all matured installments of interest and principal and any premium has been deposited with the Trustee in accordance with the Indenture). Except as provided in the Indenture, any such action taken by the registered holder of this Note shall be conclusive and binding upon such holder and upon all future holders and owners of this Note, and of any Security issued in exchange therefor, on registration of transfer thereof or in place thereof, irrespective of whether or not any notation in regard thereto is made upon this Note.

No reference herein to the Indenture and no provision of this Note or of the Indenture shall alter or impair the obligation of the Issuer, which is absolute and unconditional, to pay the principal of and premium, if any, and interest on this Note at the time and place and at the rate and in the money herein prescribed.

The Issuer is subject to certain covenants contained in the Indenture with respect to, and for the benefit of the holders of, the Notes. The Trustee shall not be obligated to monitor or confirm, on a continuing basis or otherwise, the Issuer’s compliance with the covenants contained in the Indenture or with respect to reports or other certificates filed under the Indenture; provided, however, that nothing herein shall relieve the Trustee of its obligations under Article 7 of the Indenture. If an Event of Default as defined in the Indenture with respect to the Notes shall occur and be continuing, the principal of the Notes may be declared due and payable in the manner and with the effect provided in the Indenture.

As provided in and subject to the provisions of the Indenture, the holder of this Note shall not have the right to institute any suit, action or proceeding in equity or at law upon or under or with respect to the Indenture or for the appointment of a receiver or trustee or for any other remedy thereunder, unless such holder shall have previously given the Trustee written notice of a continuing Event of Default with respect to the Notes, the holders of not less than 25% in principal amount of the Outstanding Notes (in the case of an Event of Default described in clauses (a)(i) or (a)(ii) of Section 6.01 of the Base Indenture, each such series voting as a separate class, and in the case of an Event of Default described in clauses (a)(iii), (a)(iv), (a)(v) or (a)(vi) of Section 6.01 of the Base Indenture, all affected series voting together as a single class) shall have made written request to the Trustee to institute such action, suit or proceeding in respect of such Event of Default as Trustee and offered the Trustee indemnity satisfactory to the Trustee, the Trustee shall have failed to institute any such action, suit or proceeding for 60 days after receipt of such notice, request and offer of indemnity and during such 60 day

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period, the Trustee shall not have received from the holders of a majority in principal amount of the Notes at the time Outstanding (voting as provided in Section 6.04(b) of the Base Indenture) conflicting directions with such request. The foregoing shall not apply to any suit instituted by the holder of this Note for the enforcement of any payment of principal hereof (and premium, if any) or any interest on this Note on or after the respective due dates expressed herein.

As provided in the Indenture and subject to certain limitations therein set forth, this Note is transferable by the registered holder hereof on the Security Register of the Issuer, upon surrender of this Note for registration of transfer at the office or agency of the Issuer accompanied by a written instrument or instruments of transfer in form satisfactory to the Issuer or the Security Registrar duly executed by the registered holder hereof or his attorney duly authorized in writing, and thereupon one or more new Notes of authorized denominations and for the same aggregate principal amount and series will be issued to the designated transferee or transferees. No service charge will be made for any such transfer, but the Issuer may require payment of a sum sufficient to cover any tax or other governmental charge payable in relation thereto.

Prior to due presentment for registration of transfer of this Note, the Issuer, the Trustee, any paying agent and any Security Registrar may deem and treat the registered holder hereof as the absolute owner hereof (whether or not this Note shall be overdue and notwithstanding any notice of ownership or writing hereon made by anyone other than the Security Registrar) for the purpose of receiving payment of or on account of the principal hereof and premium, if any, and interest due hereon and for all other purposes, and neither the Issuer nor the Trustee nor any paying agent nor any Note Registrar shall be affected by any notice to the contrary.

No recourse under or upon any obligation, covenant or agreement of the Indenture, or of the Notes, or for any claim based thereon or otherwise in respect thereof, shall be had against any incorporator, stockholder, officer or director, past, present or future as such, of the Issuer or of any predecessor or successor corporation, either directly or through the Issuer or any such predecessor or successor corporation, whether by virtue of any constitution, statute or rule of law, or by the enforcement of any assessment or penalty or otherwise.

The Notes are issuable only in registered form without coupons in authorized denominations. As provided in the Indenture and subject to certain limitations herein and therein set forth, Notes so issued are exchangeable for a like aggregate principal amount of Notes of a different authorized denomination, as requested by the holder surrendering the same.

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All terms used in this Note which are defined in the Indenture shall have the meanings assigned to them in the Indenture.

THE INDENTURE AND THE NOTES INCLUDING THIS NOTE SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE LAW OF THE STATE OF NEW YORK.

Pursuant to a recommendation promulgated by the Committee on Uniform Security Identification Procedures, the Issuer has caused “CUSIP” numbers to be printed on the Notes as a convenience to the holders of the Notes. No representation is made as to the correctness or accuracy of such CUSIP numbers as printed on the Notes, and reliance may be placed only on the other identification numbers printed hereon.

Unless the certificate of authentication hereon has been executed by or on behalf of the Trustee by manual signature, this Note shall not be entitled to any benefit under the Indenture or be valid or obligatory for any purposes.

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