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                                                                   Exhibit 10.25
                        INTERCOMPANY SERVICES AGREEMENT

          This Intercompany Services Agreement (this "Agreement") is made and
entered into as of this 2nd day of December, 1997, by and between Howmet
International Inc., a Delaware corporation with headquarters in Greenwich,
Connecticut ("Howmet"), and Thiokol Corporation, a Delaware corporation with
headquarters in Ogden, Utah ("Thiokol").

        1.  COMMENCEMENT AND TERM OF AGREEMENT
            ----------------------------------

            a.  Beginning on the date hereof (the "Effective Date"), Thiokol
shall begin to provide to Howmet the services set forth in Section 2a of this
Agreement ("Corporate Services").

            b.  Unless terminated earlier by agreement of the parties hereto or
in accordance with its terms, this Agreement shall have a term of three (3)
years from its Effective Date.

        2.  SERVICES, INSURANCE COVERAGE AND EMPLOYEE BENEFITS
            --------------------------------------------------

            a.  The Corporate Services provided under this Agreement include,
but are not limited to the following:

               (1)  Tax planning advice and return preparation
               (2)  Corporate control and Internal audit
               (3)  Risk management and Insurance (see Section 4 hereof)
               (4)  Health, safety and environmental
               (5)  Human resources and employee relations
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               (6)  Legal services (other than outside counsel services)
               (7)  Employee benefit plan administration (see Section 5 hereof)
               (8)  Treasury and cash management
               (9)  Investor Relations and Public Affairs
               (10) Executive Department services

        b.   To the extent provided in this Agreement, Thiokol may include
Howmet in its insurance coverages ("Insurance"). The foregoing notwithstanding,
the parties hereto recognize that Thiokol is neither an insurance broker nor an
insurance carrier. At no time will Thiokol be required by this Agreement or
otherwise by Howmet to act as an insurance broker or carrier.

        c.   In addition to the above services and coverages, Thiokol may
provide Howmet employees with benefit plans and programs and the corresponding
administrative services ("Benefit Plans").

        3.  COSTS AND FEES FOR CORPORATE SERVICES
            -------------------------------------

           a.   In return for Corporate Services provided for herein, Howmet
shall pay Thiokol the costs of the services plus a fee, both amounts determined
by Thiokol from time to time on a basis consistent with its past practices,
recognizing, to the extent practicable, Thiokol's increased ownership of
Howmet's stock and Howmet's requirements for the Corporate Services.  Howmet
shall pay these costs and fees in arrears on the last business day of the period
to which the costs and fees relate.

           b.   In some cases, the services provided to Howmet by Thiokol will
include some services provided by third parties (e.g. insurance brokers and
carriers; actuaries; financial printers).  Generally, such third party services
shall 
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be billed directly to Howmet with no "mark up" by Thiokol. However, the cost of
Thiokol's arranging for third parties' services shall be billed to Howmet along
with a fee, as described herein.

        4.   Insurance.
             --------- 

            a.   If Thiokol arranges for an insurance policy covering only
Howmet risks or interests, the costs of such a policy shall be handled in
accordance with Section 3b, above.

            b.   If Thiokol arranges for an insurance policy that covers risks
or interests of both Howmet and Thiokol, then the following terms and conditions
shall apply:

                (1) Howmet shall, within 30 days of its receipt of a reasonably
detailed invoice from Thiokol, pay the portion of the premiums and other charges
for the Insurance attributable to the coverage provided to Howmet.
Notwithstanding the foregoing, if Thiokol provides Howmet with at least five
days' advance written notice, Howmet agrees to make funds available, as and when
to be paid by Thiokol, to Thiokol so that Thiokol may pay the premiums and other
charges for the Insurance attributable to the coverage provided to Howmet.  The
portion of such premiums and other charges payable by Howmet shall be allocated
in good faith by Thiokol in a manner to reflect the cost to Thiokol of the
insurance premiums and other charges that are properly attributable to Howmet
(but without any allocation of Thiokol overhead costs).  The Insurance provided
shall be subject to such policies of insurance or self-insurance, and such
guidelines or procedures in respect of insurance or self-insurance, as Thiokol
shall determine.  In the event the terms of the Insurance change from those
terms in effect immediately prior to the date hereof, Thiokol agrees (i) to the
extent Thiokol is aware of a material change prior to the effective date of the
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change, to provide notice to Howmet of the change prior to its effective date,
or (ii) otherwise to provide notice to Howmet upon becoming aware of the change.
It is expressly agreed by Howmet and Thiokol that any self-insurance, retention
or deductible shall be for the account of and be an obligation of Howmet, and
that Howmet's obligations in respect of such self-insurance, retention or
deductible shall survive the termination of this Agreement.

                (2) Termination of Insurance.  Either Howmet or Thiokol may 
                    ------------------------
terminate all or any portion of the Insurance at any time on 90 days' prior
written notice to the other party hereto. Notwithstanding the foregoing, so long
as Thiokol beneficially owns shares of capital stock of Howmet possessing 50% or
more of the voting power of all then-outstanding shares of capital stock, Howmet
may not, without the prior written consent of Thiokol, terminate all or any
portion of the Insurance without providing evidence satisfactory to Thiokol in
its sole discretion that Howmet has obtained, or upon termination of such
Insurance will obtain, comparable insurance coverage. In the event all or any
portion of the Insurance is terminated, if appropriate, the charges therefor
shall be adjusted equitably to reflect such termination.

        5.   EMPLOYEE BENEFIT PLANS
             ----------------------

            a.   Plans and Services.  Prior to the Effective Date, employees of
                 ------------------                                            
Howmet participated in the employee benefit plans sponsored by Howmet and
administered by Howmet.  On and after the Effective Date, employees of Howmet
shall be eligible to participate in Thiokol plans subject to the terms of the
governing plan documents as interpreted by the appropriate plan fiduciaries and
subject to Thiokol's decision whether the inclusion of Howmet employees in a
particular plan is economically justified.  On and after the Effective Date,
subject to regulatory requirements, the Thiokol Corporate Benefits Department
will continue to administer those Thiokol plans in which employees of Howmet
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participate in substantially the same manner as it administered the plans prior
to the Effective Date.

            b.   Direct Cost Reimbursement.  Howmet shall reimburse Thiokol for
                 -------------------------                                     
the direct costs associated with the plans in which Howmet employees
participate.  For this purpose, direct costs associated with the plans shall
include those items charged to participating employers as direct costs prior to
the Effective Date which included the cost of the benefits (premiums and
contributions) and administration and management fees of third party providers
and internal personnel.  As appropriate, Howmet's allocable share of the direct
costs will be determined consistent with the methodology used prior to the
Effective Date.  Thiokol will provide an estimate of the direct costs allocable
to Howmet at the same time such information is provided to other business units
of Thiokol that are participating employers in the plans.  Thiokol will invoice
Howmet on a monthly basis and Howmet shall make payment to Thiokol within 30
days of receipt of an invoice.  Notwithstanding the foregoing, if Thiokol
provides Howmet with at least five days' advance written notice, Howmet agrees
to make funds available, as and when to be paid by Thiokol, to Thiokol so that
Thiokol may make contributions or payments to, for the account of, or in respect
of current or former employees or their spouses of other beneficiaries (i) under
tax-qualified benefit plans or (ii) that are generally made on a predetermined
periodic basis.  Experience rated insurance contracts will be actualized as soon
as practicable after the end of each year; Howmet shall promptly reimburse
Thiokol the amount of any increased cost and Thiokol will promptly refund to
Howmet any overcharges.

            c.   Termination.  Howmet or Thiokol may terminate participation by
                 -----------                                                   
Howmet in any plan sponsored by Thiokol by giving 180 days' written notice to
the other party, except that the date of termination may be extended by either
party if the termination of Howmet's participation would adversely affect the
tax qualification of the plan or its compliance with applicable regulatory
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requirements.  The termination date may also be extended to the earlier of an
additional 180 days or the expiration date of any contract pursuant to which
benefits are provided if termination within 180 days would adversely affect
rates or rights of other employees or if more time is necessary to effect an
orderly termination of Howmet's employees participation.  If the termination
date is extended, Thiokol and Howmet will cooperate reasonably in establishing a
mutually agreeable termination date.  Notice of less than 180 days may be given
by mutual written consent of Howmet and Thiokol.  Unless Thiokol otherwise
agrees, termination shall be effective with respect to the entire plan.  Thiokol
will promptly submit an invoice for, and Howmet shall promptly pay to Thiokol,
all costs incurred prior to the date of termination, including costs resulting
from the termination.  All services offered by the Thiokol Corporate Benefits
Department with respect to such terminated benefit shall cease.  Thiokol
thereafter will not be responsible for providing benefits of a like type to
Howmet employees.

            d.   Changes:  Additional Services.  Howmet may request changes in
                 -----------------------------                                
plan terms or services; approval of such changes shall be in the sole discretion
of Thiokol, which will not be exercised unreasonably.  Howmet may request
additional services that, if agreeable to Thiokol, will be provided on a direct
cost basis to Howmet.  From time to time, Thiokol may, as plan sponsor, make
changes in the benefit plans or in the administration of any of the plans.

            e.   Howmet Plans.  Except for the executive compensation plans
                 ------------                                              
referenced in Exhibit A, on or after the Effective Date, no employee of Howmet
who is covered by a benefit plan sponsored by any entity other than Thiokol
shall be entitled to simultaneous coverage under any plan sponsored by Thiokol
that provides a benefit of similar type, regardless of whether the other plan
provides more or less coverage than the Thiokol-sponsored plan.  Howmet shall be
solely responsible for benefits delivery and administration of plans covering
its employees that are not sponsored by Thiokol.  A list of plans not 
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sponsored by Thiokol that covered Howmet employees prior to the Effective Date
is attached as Exhibit B.

            f.   Regulatory Compliance.  In the event Howmet provides benefit
                 ---------------------                                       
plans to its employees, other than those sponsored by Thiokol, Howmet will have
sole responsibility to comply with all regulatory requirements with respect to
Howmet plans.  Notwithstanding the foregoing, Thiokol and Howmet agree to
cooperate fully with each other in the administration and coordination of
regulatory and administrative requirements that apply jointly to Howmet and
Thiokol.  Such coordination, upon request, will include (but is not limited to)
the following:  Sharing payroll data for determination of highly compensated
employees, providing census information (including accrued benefits) for
purposes of running discrimination tests, providing actuarial reports for
purposes of determining the funded status of any plan, review and coordination
of insurance and other third party contracts, and providing for review all
summary plan descriptions, requests for determination letters, insurance
contracts, forms 5500, financial statement disclosures, and plan documents.

            g.   Executive Compensation.  Certain executives also participate in
                 ----------------------                                         
executive compensation and benefit programs offered by Thiokol.  These plans are
listed in Exhibit A and are administered by the Executive Vice President, Human
Resources and Administration of Thiokol.

            h.   Certain Notices.  In the event there is an "ERISA Event," 
                 --------------- 
Thiokol shall advise Howmet as soon as reasonably practicable after Thiokol
determines the ERISA Event has occurred. For purposes of this Section 4(h), an
"ERISA Event" means (i) the termination of a Thiokol plan or the filing of a
Notice of Intent to Terminate such a plan, in either case, under Section 4041(c)
of the Employee Retirement Income Security Act of 1974, as amended from time to
time ("ERISA"); (ii) the institution of proceedings by the Pension Benefit
Guaranty 
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Corporation (or any successor thereof) to terminate a Thiokol plan or to appoint
a trustee to administer such a plan or the receipt of notice by Thiokol that
such an action has been taken with respect to such a plan; (iii) any substantial
accumulated funding deficiency within the meaning of Section 412 of the Internal
Revenue Code of 1986, as amended (the "Code") or Section 302 of ERISA is
incurred with respect to any plan sponsored by Thiokol and no waiver of that
deficiency has been obtained from the Internal Revenue Service; (iv) the
Internal Revenue Service determines that a Thiokol plan that is intended to be
qualified under Section 401 of the Code fails to meet the applicable
requirements of the Code and disqualifies the plan; or (v) an amendment to a
plan sponsored by Thiokol that results in a significant underfunding described
in Section 401(a)(29) of the Code or Section 307 of ERISA.

            i.   No Third Party Beneficiary.  Nothing in this Agreement is
                 --------------------------                               
intended to entitle any employee or individual to any benefit or compensation
from Howmet or Thiokol or to otherwise establish or create any rights on the
part of any third party.  Nothing in this agreement is intended to restrict or
limit Thiokol in the exercise of its rights or the fulfillment of its duties as
plan sponsor.

        6.   COOPERATION.  Thiokol and Howmet shall cooperate with each other 
             ----------- 
with respect to all provisions of this Agreement and the Corporate Services,
Insurance (if any) and Benefit Plans (if any) provided hereunder.

        7.   LIMITATION OF LIABILITY.  Except as may be provided in Section 8
             -----------------------                                         
below, Thiokol, its subsidiaries, affiliates, directors, officers, employees,
agents and permitted assigns (each, a "Thiokol Party") shall not be liable to
Howmet, any subsidiary or any affiliate, director, officer, employee, agent or
permitted assign of Howmet or any of its subsidiaries, (each, a "Howmet Party")
for any liabilities, claims, damages, losses or expenses, including, but not
limited to, any special, indirect, incidental or consequential damages, of a
Howmet Party arising 
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in connection with this Agreement, the Corporate Services, the Insurance or the
Benefit Plans.

        8.   THIOKOL INDEMNIFICATION.  Thiokol shall indemnify, defend and hold
             -----------------------                                           
harmless each of the Howmet Parties from and against all liabilities, claims,
damages, losses and expenses (including, but not limited to, court costs and
reasonable attorneys' fees) (collectively referred to as "Damages") of any kind
or nature, of third parties unrelated to any Howmet Party caused by or arising
in connection with the gross negligence or willful misconduct of any employee of
Thiokol in connection with the performance of the Corporate Services or the
administration of the Benefit Plans, or provision of the Insurance, except to
the extent that Damages were caused directly or indirectly by acts or omissions
of any Howmet Party; provided however, that in the case of a Benefit Plan,
Howmet's right of indemnification also shall extend to claims of Howmet's
employees but shall not extend to any Damages that otherwise would have been
owed in the absence of such gross negligence or willful misconduct.
Notwithstanding the foregoing, Thiokol shall not be liable for any special,
indirect, incidental, or consequential damages relating to such third party
claims.  In the event that Howmet knows of a claim that may be the subject of
indemnification under this Section, it shall promptly notify Thiokol of such
claim and Thiokol, in its sole discretion, may defend, settle, or otherwise
litigate such claim.

        9.   HOWMET INDEMNIFICATION.  Howmet shall indemnify, defend and hold
             ----------------------                                          
harmless each of the Thiokol Parties, from and against all Damages of any kind
or nature, caused by or arising in connection with Howmet's failure to fulfill
Howmet's obligations hereunder, except to the extent that such failure is
caused, directly or indirectly, by acts or omissions of any Thiokol Party.
Notwithstanding the foregoing, Howmet shall not be liable for any special,
indirect, incidental or consequential damages relating to such claims.
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       10.  INFORMATION.  Subject to applicable law, each party hereto covenants
            -----------                                                         
and agrees to provide the other party with all information regarding itself and
transactions under this Agreement as are required by such other party to comply
with all applicable federal, state, county and local laws, ordinances,
regulations and codes, including, but not limited to, securities laws and
regulations.

       11.  CONFIDENTIAL INFORMATION.  Howmet and Thiokol hereby covenant and
            ------------------------                                         
agree to hold in trust and maintain confidential, except as otherwise required
by law, all Confidential Information relating to the other party or any of its
subsidiaries.  Confidential Information shall mean all information disclosed by
either party to the other in connection with this Agreement whether orally,
visually, in writing or in any other tangible form, and includes, but is not
limited to, technical, economic and business data, know-how, flow sheets,
drawings, business plans, computer information data bases, and the like.
Without prejudice to the rights and remedies of any party to this Agreement, a
party disclosing any Confidential Information to the other party in accordance
with the provisions of this Agreement shall be entitled to equitable relief by
way of an injunction if the other party hereto breaches or threatens to breach
any provision of this Section 11.

       12.  ASSIGNMENT.  Except as otherwise provided herein, neither party may
            ----------                                                         
assign or transfer any of its rights or duties under this Agreement to any
person or entity without the prior written consent of the other party.

       13.  NOTICES.  Any notice, instruction, direction or demand under the 
            -------  
terms of this Agreement required to be in writing will be duly given upon
delivery, if delivered by hand, facsimile transmission or intercompany mail, or
five (5) days after posting if sent by certified mail, return receipt requested
to the following addresses:
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          Thiokol:
          Thiokol Corporation
          2475 Washington Blvd.
          Ogden, Utah  84401-2398

          Attention:     Daniel S. Hapke, Jr.
                         Senior Vice President and General Counsel

          Telecopy No.:    (801) 629-2279

               and

          Howmet:
          Howmet International Inc.
          475 Steamboat Road
          Greenwich, CT  06836-1960

          Attention:    Roland A. Paul
                        Vice President, General Counsel and Secretary

          Telecopy No.:  (203) 625-8771

or to such other address as either party may have furnished to the other in
writing in accordance with this Section 13.

       14.  GOVERNING LAW.  This Agreement shall be construed in accordance with
            -------------                                                       
and governed by the laws of the State of Utah except its choice of law rules and
except to the extent preempted by federal law.
<PAGE>
 
       15.  SUSPENSION.  The obligations of any party to perform any acts
            ----------                                                   
hereunder may be suspended if such performance is prevented by fires, strikes,
embargoes, riot, invasion, governmental interference, inability to secure goods
or materials, or other circumstances outside the control of the parties.

       16.  SEVERABILITY.  If any provision of this Agreement shall be invalid 
            ------------  
or unenforceable, such invalidity or unenforceability shall not render the
entire Agreement invalid. Rather, the Agreement shall be construed as if not
containing the particular invalid or unenforceable provision, and the rights and
obligations of each party shall be construed and enforced accordingly.

       17.  RIGHTS UPON ORDERLY TERMINATION; SURVIVAL.  Upon termination or
            -----------------------------------------                      
expiration of this Agreement or any of the Services, Insurance or Plans
described herein, each party shall, upon request, forthwith return to the other
party all reports, paper, materials and other information required to be
provided to the other party by this Agreement.  In addition, each party shall
assist the other in the orderly termination of this Agreement or any of the
Services, Insurance or Plans described herein.  Notwithstanding any termination
of this Agreement, the obligations of the parties hereto to make payments
hereunder and the provisions of Sections 7, 8, 9 and 11 shall survive.

       18.  AMENDMENT.  This Agreement may only be amended by a written 
            ---------                                                   
agreement executed by all of the parties hereto.

       19.  ENTIRE AGREEMENT.  This Agreement, including the exhibits hereto,
            ----------------                                                 
constitutes the entire agreement between the parties, and supersedes all prior
agreements, representations, negotiations, statements or proposals related to
the subject matter hereof.
<PAGE>
 
       20.  COUNTERPARTS.  This Agreement may be executed in separate
            ------------                                             
counterparts, each of which will be deemed an original and all of which, when
taken together, shall constitute one agreement.

     IN WITNESS WHEREOF, the parties have caused this Agreement to be signed by
their duly authorized representatives.

               THIOKOL CORPORATION

               By:    /s/ Richard L. Corbin      
                      ----------------------     
               Name:     Richard L. Corbin
                       ---------------------     
               Title:  Senior Vice President             
                       ---------------------       

               HOWMET INTERNATIONAL INC.

               By:     /s/ Roland A. Paul         
                       ---------------------    
              Name: 
                       --------------------- 
              Title: 
                       ---------------------
<PAGE>
 
                                   EXHIBIT A

                          EXECUTIVE COMPENSATION PLANS


                                     (TBD)
<PAGE>
 
                                   EXHIBIT B

                  PLANS NOT SPONSORED BY THIOKOL THAT COVERED
                  HOWMET EMPLOYEES PRIOR TO THE EFFECTIVE DATE

                                     (TBD)