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                                  Exhibit 10.9

                                 THIRD AMENDMENT
                                     TO THE
                            PHELPS DODGE CORPORATION
                          SUPPLEMENTAL RETIREMENT PLAN

         Effective as of January 1, 1997, Phelps Dodge Corporation (the
"Company") adopted the Phelps Dodge Corporation Supplemental Retirement Plan
(the "Plan") as an amendment and restatement of the Comprehensive Executive
Non-qualified Retirement and Savings Plan of Phelps Dodge Corporation. The Plan
subsequently was amended effective January 1, 1998 and January 1, 1999. By this
Amendment, the Company intends to amend the Plan to change the eligibility
provisions of the Plan.

         1. The provisions of this Amendment shall be effective as of January 1,
2000 unless otherwise noted below. This Amendment shall amend only the
provisions of the Plan as set forth herein, and those provisions not expressly
amended hereby shall be considered in full force and effect.

         2. Section 3.1 of the Plan (Selection of Participants) is hereby
amended and restated in its entirety as follows:

                  (a) GENERAL. Any Employee who was participating in the Plan
         prior to January 1, 2000 shall continue to be eligible to participate
         in the Plan, subject to the Plan Administrator's right to terminate a
         Participant's participation pursuant to Sections 3.1(c) or 3.4.
         Effective as of January 1, 2000, all Employees who are eligible to
         participate in the AICP are eligible to participate in the Plan,
         regardless of the individual Employee's AICP Grade classification. From
         such group, the Plan Administrator shall select Employees for
         participation in the Plan. The Plan Administrator's selections shall be
         made in its discretion and shall be final and binding for all purposes
         under this Plan.

                  (b) LIMITATION ON PARTICIPATION. For purposes of Title I of
         ERISA, the Plan is intended to be an unfunded plan of deferred
         compensation covering a select group of management or highly
         compensated employees. As a result, participation in the Plan shall be
         limited to Employees who are properly included in one or both of these
         categories. The Plan Administrator, in the exercise of its discretion,
         may exclude an Employee who otherwise meets the requirements of Section
         3.1(a) from participation in the Plan if it concludes that the
         exclusion of that Employee is necessary to satisfy these requirements.
         The Plan Administrator also may exclude an Employee who otherwise

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         meets the requirements of Section 3.1(a) for any other reason, or for
         no reason, as the Plan Administrator deems to be appropriate.

                  (c) TERMINATION OF PARTICIPATION. A Participant shall cease to
         participate in the Plan upon either his exclusion from participation by
         the Plan Administrator or upon his termination of employment with the
         sponsoring Employers, except that if he has met the eligibility
         conditions for an immediate or deferred vested retirement benefit, he
         shall remain a Participant for purposes of receiving his benefit at the
         appropriate time.

         IN WITNESS WHEREOF, PHELPS DODGE CORPORATION has caused this Third
Amendment to be executed as of this 28th day of April, 2000.

                                       PHELPS DODGE CORPORATION

                                       By: /s/ Stuart L. Marcus
                                          Stuart L. Marcus
                                          Vice President, Human Resources

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                                  Exhibit 10.10

                                SECOND AMENDMENT
                                     TO THE
                            PHELPS DODGE CORPORATION
                            SUPPLEMENTAL SAVINGS PLAN

         Effective as of January 1, 1997, Phelps Dodge Corporation (the
"Company") adopted the Phelps Dodge Corporation Supplemental Savings Plan (the
"Plan") as an amendment and restatement of the Comprehensive Executive
Non-qualified Retirement and Savings Plan of Phelps Dodge Corporation. The Plan
subsequently was amended effective January 1, 1999. By this Amendment, the
Company intends to amend the Plan to change the eligibility provisions of the
Plan.

         1. The provisions of this Amendment shall be effective as of January 1,
2000 unless otherwise noted below. This Amendment shall amend only the
provisions of the Plan as set forth herein, and those provisions not expressly
amended hereby shall be considered in full force and effect.

         2. Section 3.1(a) of the Plan (Selection of Participants - General
Rule) is hereby amended and restated in its entirety as follows:

                  (a) GENERAL RULE. Any Employee who was participating in the
         Plan prior to January 1, 2000 shall continue to be eligible to
         participate in the Plan, subject to the Plan Administrator's right to
         terminate a Participant's participation pursuant to Sections 3.1(c) or
         3.4. Effective as of January 1, 2000, all Employees who are eligible to
         participate in the AICP are eligible to participate in the Plan,
         regardless of the individual Employee's AICP Grade classification. From
         such group, the Plan Administrator shall select Employees for
         participation in the Plan. The Plan Administrator's selections shall be
         made in its discretion and shall be final and binding for all purposes
         under this Plan.

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         IN WITNESS WHEREOF, PHELPS DODGE CORPORATION has caused this Second

Amendment to be executed as of this 28 day of April, 2000.

                                    PHELPS DODGE CORPORATION

                                    By: /s/ Stuart L. Marcus
                                       --------------------------------
                                    Stuart L. Marcus
                                    Vice President, Human Resources

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                                  Exhibit 10.11

                             FIRST AMENDMENT TO THE
                            PHELPS DODGE CORPORATION
                            DIRECTORS STOCK UNIT PLAN

         Effective as of January 1, 1997, Phelps Dodge Corporation
("Corporation") adopted the Phelps Dodge Corporation Directors Stock Unit Plan
("Plan") in order to attract, retain and motivate the best qualified directors
for the benefit of the Corporation and its shareholders. Subsequently, the Plan
was amended and restated, effective January 1, 1998, to reflect the replacement
of the Retirement Plan for Directors of Phelps Dodge Corporation by the Plan and
to change the name of the Plan.

         By this Amendment, the Corporation intends to amend the Plan to modify
the manner in which the number of Units awarded to Eligible Directors is
calculated under the Plan.

         1. The provisions of this First Amendment shall be effective as of
January 1, 2001. This First Amendment shall amend only the provisions of the
Plan as set forth herein and those provisions not expressly amended hereby shall
remain in full force and effect.

         2. Section 3.(a) of the Plan is amended and restated in its entirety to
read as follows:

         Section 3. Units

         (a) Unit Awards. Subject to the requirements of Section 5(a), on each
         January 1, during the term of the Plan, each Eligible Director serving
         as a Director on such date, who has been a Director continuously since
         the prior November 15, shall be awarded the number of Units equal in
         value to Fifty Thousand Dollars ($50,000.00) as of the date of Grant.
         The number of Units granted in accordance with this Section 3(a) shall
         be calculated by dividing $50,000.00 by the Fair Market Value as of the
         December 31 immediately preceding the date of Grant. For purposes of
         this calculation, Unit awards can result in fractional Units being
         credited to an Eligible Director's Account.

         3. Section 4.(a) of the Plan is amended and restated in its entirety to
read as follows:

         Section 4. Vesting and Forfeitures

         (a) Vesting. All of the Units awarded each year pursuant to Section
         3(a) shall be vested as of the date of Grant. Units awarded pursuant to
         Section 3(b) shall be vested as of January 1, 1998.

IN WITNESS WHEREOF, Phelps Dodge Corporation has caused this First Amendment to
be executed this 11 day of July, 2000.

                                   PHELPS DODGE CORPORATION

                                   By:  /s/ DAVID PULATIE

                                   Its: Senior Vice President, Human Resources<PAGE>   1

                                 Exhibit 10.12

                                  AMENDMENT TO
                         PHELPS DODGE 1998 STOCK OPTION
                           AND RESTRICTED STOCK PLAN

         WHEREAS, Phelps Dodge Corporation (the "Corporation") adopted the
Phelps Dodge 1998 Stock Option and Restricted Plan (the "Plan"); and

         WHEREAS, pursuant to Section 7 of the Plan, the Board of Directors
retained the right to amend the Plan;

         NOW, THEREFORE, the Plan is amended as follows:

1. The fourth sentence of Section 5.4 of the Plan is deleted in its entirety and
a new fourth sentence is inserted in lieu thereof, to read as follows:

         Without limiting the generality of the foregoing, the Committee may
         approve, pursuant to the foregoing sentence, provisions making
         installments exercisable (1) upon a Participant's Retirement (provided
         that, in the event that the Participant is retiring prior to his normal
         retirement date and such retirement is not determined by the Committee
         to be adverse to the Corporation, such acceleration shall be
         conditioned upon the execution by the Participant of a release in favor
         of the Corporation and its affiliates in a form acceptable to the
         Corporation), (ii) six months (or such greater or lesser period as the
         Committee shall in its discretion determine) from the date on which an
         Option is granted if such Option is granted in conjunction with the
         Participant's exercise of another Option (whether such Option is issued
         under this Plan or a Predecessor Plan) with Common Shares already owned
         by the Participant, (iii) not later than the date the Participant
         ceases to be employed by the Corporation if he ceases to be so employed
         within two years following a Change of Control of the Corporation, and
         (iv) at such time and for such period as the Committee deems
         appropriate, in the event of a Change of Control.

2. Section 6.4 of the Plan is amended to add a new sentence at the end thereof,
to read as follows:

         Notwithstanding the foregoing, if a Participant incurs a tax liability
         in respect of an award of Restricted Stock prior to the time the
         Restricted Period would otherwise lapse hereunder (other than by reason
         of the election by the Participant under the Code to be taxed at the
         time of grant), the Restricted Period shall lapse on the date such tax
         liability arises with respect to the number of whole Common Shares
         having a Fair Market Value at such time no greater than the amount
         required to satisfy all tax withholding requirements applicable thereto
         (as determined in accordance with Section 9.3 hereof). Unless the
         Committee shall instruct otherwise, the Corporation shall withhold such
         released Common Shares to satisfy such withholding obligations.
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3. The second sentence of Section 9.3 of the Plan is deleted in its entirety and
a new second sentence is inserted in lieu thereof, to read as follows:

         Subject to any required withholding of Common Shares pursuant to
         Section 6.4, the Committee may, in its discretion, permit a Participant
         to elect, subject to such conditions as the Committee shall impose, (i)
         to have Common Shares otherwise issuable or deliverable under the Plan
         withheld by the Corporation or (ii) to deliver to the Corporation
         previously acquired shares of Stock, in each case, having a Fair Market
         Value sufficient to satisfy all or part of the minimum amount of the
         Participant's total Federal, state and local tax withholding obligation
         associated with the transaction.

                  IN WITNESS WHEREOF, the Corporation has caused this Amendment
to be executed by its duly authorized officer as of the 4th day of May, 2000.

                                   PHELPS DODGE CORPORATION

                                   By:  /s/ DAVID PULATIE

                                   Title: SVP, Human Resources

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