Document:

Exhibit
      10.3

    

    

    

    

    

    

    

    Senior
      Executive

    Life
      Insurance Plan

     

     

     

     

    

    
      
        
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          Arch
            Chemicals, Inc. - Senior Executive Life Insurance Plan

          December
            1, 2005

        

        
        

      

      
        
        

        
          

        

      

      
        
        

      

    

     

    

    

    Contents

    

    
      	
              Your
                Senior Executive Life Insurance Plan

            	
              1

            
	
              Summary
                of Your Senior Executive Life Insurance Coverage

            	
              2

            
	
              Eligibility/When
                Coverage Begins

            	
              3

            
	
              Group
                Variable Universal Life Insurance

            	
              4

            
	
              Survivor
                Income Benefit

            	
              5

            
	
              Emergency
                Death Benefit

            	
              6

            
	
              Olin
                Corporate Owned Life Insurance

            	
              7

            
	
              Taxes

            	
              8

            
	
              Beneficiary

            	
              9

            
	
              How
                Long the Senior Executive Life Insurance Plans Continue

            	
              10

            
	
              Plan
                Limitations

            	
              11

            
	
              Claiming
                Benefits

            	
              12

            
	
              Converting
                your Coverage

            	
              13

            
	
              Plan
                Administration

            	
              14

            
	
              Plan
                Facts

            	
              16

            
	
              Definitions

            	
              17

            

    

    

    

    
      
        
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          Arch
            Chemicals, Inc. - Senior Executive Life Insurance Plan

          December
            1, 2005

        

        
        

      

      
        
        

        
          

        

      

      
        
        

        
        

      

    

    

    

    

    Your
      Senior Executive Life Insurance Plan

    

    

    
      	 	
              While
                you are working, those who depend on you rely on your income to meet
                day-to-day living expenses. However, if you die, that income would
                be
                lost. Recognizing the importance of life insurance to your family’s
                security and to your peace of mind, Arch provides programs, which
                enable
                you to protect your survivors.

            
	 	 
	 	
              Understanding
                this section in conjunction with the Accidental Death and Dismemberment
                and Travel Accident sections will give you a complete picture of
                your
                Company-provided Life Insurance Plans.

            
	 	 
	 	
              In
                addition to the benefits described in this handbook that are provided
                by
                Arch, you may also purchase Group Universal Life Insurance. This
                insurance
                coverage is not an Arch-sponsored benefit nor does Arch pay any of
                its
                premiums. Therefore, it is not considered an “ERISA benefit” and is not
                subject to ERISA regulations. Arch does, however, offer the convenience
                of
                payroll deducted premiums should you elect to participate in the
                Group
                Universal Life Insurance program. This program is administered by
                Marsh@WorkSolutions, PO Box 9122, Des Moines, IA 50306-9122. Telephone
                number 1 (800) 293 2818. Enrollment materials are available from
                your
                local Benefits Administrator.

            

    

    

    

    
      
        
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          Arch
            Chemicals, Inc. - Senior Executive Life Insurance Plan

          December
            1, 2005

        

        
        

      

      
        
        

        
          

        

      

      
        
        

      

    

    

    

    

    Summary
      of Your Senior Executive Life
      Insurance Coverage

    

    

    
      	 	
              Employees
                who qualify as Senior Executives have the following coverage(s) that
                may
                provide a death benefit if they die while in Active Service of the
                Company. This is a brief summary; you should read the complete
                descriptions for more details. 

            
	 	 
	
              Group
                Variable Universal Life 

              Insurance

            	
              Provides
                a life insurance death benefit equal to four times your Annual Salary
                rounded to the next $1,000. For example, if your salary is $208,525
                your
                benefit would be $835,000 ($208,525 x 4 = $834,100 which is rounded
                to
                $835,000). 

            
	 	 
	
              Survivor
                Income Benefit

            	
              Provides
                your spouse with monthly payments equal to 30% of your Monthly Salary
                (40%
                if you have eligible children).

            
	 	 
	
              $5,000
                Corporate Owned Life 

              Insurance
                (Olin COLI) 

              Death
                Benefit

            	
              Certain
                Senior Executives of Arch who were in Full-time Active Service with
                Olin
                on December 31, 1992, and who meet all other eligibility criteria
                will be
                entitled to a $5,000 Olin COLI death benefit.

            
	 	 
	
              Emergency
                Death Benefit

            	
              In
                the event you die while in the Active Service of the Company, an
                emergency
                death benefit equal to one month’s salary will be paid according to local
                personnel policy.

            
	 	 

    

    

    

    

    

    
      
        
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          Arch
            Chemicals, Inc. - Senior Executive Life Insurance Plan

          December
            1, 2005

        

        
        

      

      
        
        

        
          

        

      

      
        
        

      

    

    

    

    Eligibility/When
      Coverage Begins

    

    

    
      	 	
              You
                are eligible for immediate coverage described in this section if
                you are a
                Senior Executive of Arch. A Senior Executive, for the purpose of
                this
                coverage, is a Full-time domestic employee of the company whose Hay
                Points
                have been determined to be 1,182 or higher. Hay Points are assigned
                to
                your position through Arch’s job evaluation process. 

            
	 	 
	 	
              If
                you were a Full-time salaried or non-bargaining hourly employee of
                Olin
                Corporation on December 31, 1992, or receiving Short Term Disability
                benefits on that day, and you die while in Active Service with Arch,
                your
                Beneficiary will be entitled to a $5,000 Olin COLI death
                benefit.

            
	 	 
	 	
              The
                following categories of employees are ineligible for this
                benefit:

            

    

    

      
        	                                            ·  	
                Bargaining
                  employees;

              

      

      
        	                                            ·  	
                Temporary
                  or part-time employees;

              

      

      
        	                                            ·  	
                Employees
                  who die after their last day of Active Service with
                  Arch;

              

      

      
        	                                            ·  	Employees who were on Long Term Disability as
                of December
                31, 1992; and 

        	 ·  	Employees of AEGIS, Inc., OCG Microelectronics
                Material,
                Inc. OIT Holding Corporation (formerly known as Indy), or foreign
                subsidiaries.

      

    

    
 

    
      
        
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          Arch
            Chemicals, Inc. - Senior Executive Life Insurance Plan

          December
            1, 2005

        

        
        

      

      
        
        

        
          

        

      

      
        
        

      

    

    

    

    

    Group
      Variable Universal Life Insurance

    

    

    
      	
              Eligibility

            	
              Employees
                who qualify as Senior Executives have the following coverage(s) that
                provide a death benefit if they die while in Active Service of the
                Company.

            
	 	 
	
              Premiums

            	
              Under
                this program, Arch remits premiums on your behalf to a Group Variable
                Universal Life Insurance policy, which will provide a death benefit
                that
                is equal to four times your Annual Salary rounded to the next $1,000.
                

            
	 	 
	 	
              You
                may also choose to make voluntary contributions to the policy. Such
                contributions (which are made on an after-tax basis) will serve to
                increase the policy cash value. You may withdraw the cash value attributed
                to these voluntary contributions at any time.

            
	 	 
	
              Termination

            	
              Upon
                termination, you will be able to continue your coverage by paying
                premiums
                directly to Paragon Life.

            
	 	 
	 	
              The
                Group Variable Universal Life Insurance is administered and insured
                by
                Paragon Life, 190 Carondelet Plaza, St. Louis, MO 63105

            
	 	 
	 	
              The
                program administrator will mail to you a quarterly statement of your
                life
                insurance death benefit and cash values. This information is also
                available online at www.paragonlifeservice.com.

            
	 	 
	
              Changes
                in Amount of 

              Insurance

            	
              Your
                coverage amount and age-based premium will change on July 1st
                of
                each year. If you’re not at work on the day the amount of your coverage is
                scheduled to change, the change will be delayed until you return
                to work
                Full-time. 

            
	 	 

    

     

    
 

    
      
        
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          Arch
            Chemicals, Inc. - Senior Executive Life Insurance Plan

          December
            1, 2005

        

        
        

      

      
        
        

        
          

        

      

      
        
        

      

    

    

    

    

    Survivor
      Income Benefit

     

     

    
      	 	
              In
                the event you die while in the Active Service of the Company, your
                surviving spouse will receive a monthly benefit equal to 30% of your
                Monthly Salary, up to a maximum benefit of $6,000 per month, until
                he or
                she reaches age 65. If you have eligible children, your spouse will
                receive an additional monthly payment equal to 10% of your Monthly
                Salary
                up to a maximum payment of $2,000 per month. This additional payment
                will
                continue until your children are all at least age 25 or married,
                whichever
                is earlier. 

            
	 	 
	 	
              If
                your spouse should die following your death, your eligible children,
                or
                their guardian, will continue to receive the monthly benefit equal
                to 10%
                of your Monthly Salary until your children are all at least age 25,
                or
                married, whichever is earlier.

            
	 	 
	 	
              The
                monthly benefit paid on behalf of the children is the same 10% of
                Monthly
                Salary regardless of the number of eligible children. For example,
                if your
                Monthly Salary was $10,000 at the time of your death and you had
                2
                eligible children, the total monthly benefit paid on behalf of the
                children would be $1,000 (10% of $10,000).

            
	 	 
	
              Premiums

            	
              Arch
                pays the full premium for the Survivor Income Benefit.

            
	 	 
	
              Changes
                in Amount of 

              Insurance

            	
              The
                death benefit that is payable from the Survivor Income Benefit will
                automatically keep pace with changes in your Annual Salary. Your
                coverage
                will change on the day your salary changes. If you’re not at work on the
                day the amount of your coverage is scheduled to change, the change
                will be
                delayed until you return to work Full-time.

            

    

    

    
 

    
      
        
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          Arch
            Chemicals, Inc. - Senior Executive Life Insurance Plan

          December
            1, 2005

        

        
        

      

      
        
        

        
          

        

      

      
        
        

      

    

    

    

    

    

    Emergency
      Death Benefit

    

    

    
      	 	
              In
                the event you die while in the Active Service of the Company, your
                spouse,
                or your life insurance Beneficiary, if you do not have a spouse,
                will
                receive a death benefit equal to one month’s salary to help defray funeral
                expenses and other costs associated with your death.

            
	 	 
	 	
              This
                benefit is administered locally by your business unit. The payment
                is made
                through Arch’s payroll system.

            
	 	 
	 	
              Note:
                This benefit is not available for an employee who is receiving Long
                Term
                Disability Payments at the time of
                death.

            

    

     

     

    

    
      
        
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          Arch
            Chemicals, Inc. - Senior Executive Life Insurance Plan

          December
            1, 2005

        

        
        

      

      
        
        

        
          

        

      

      
        
        

      

    

    

    

    

    

    Olin
      Corporate Owned Life Insurance

    

    

    
      	 	
              The
                beneficiary of certain employees of Arch, or an affiliate, who die
                while
                in Active Service of the Company, may be entitled to a special $5,000
                Olin
                COLI death benefit. This benefit is payable to your beneficiary if
                you die
                while in the Active Service of the Company and you were a salaried
                or
                non-bargaining hourly employee of Olin on December 31, 1992, or receiving
                Short Term Disability payments on that date.

            
	 	 
	 	
              The
                beneficiary for this Plan is deemed to be the beneficiary of record
                for
                Group Variable Universal Life Insurance.

            
	 	 
	 	 
	
              Premiums

            	
              Olin
                is responsible for any premiums due on this policy

            
	 	 

    

    

    

    

    

    
      
        
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          Arch
            Chemicals, Inc. - Senior Executive Life Insurance Plan

          December
            1, 2005

        

        
        

      

      
        
        

        
          

        

      

      
        
        

      

    

    

    

    

    

    

    Taxes

    

    

    
      	
              Group
                Variable Universal Life 

              Insurance/Survivor
                Income 

              Benefit

            	
              Participants
                are subject to Federal and State Income Tax as well as FICA tax on
                the
                amount of premiums remitted on their behalf each year to the Group
                Variable Universal Life Insurance Program. Your taxable income will
                be
                calculated for you and reported on your W-2 form each
                year.

            
	 	 
	 	
              Death
                benefits paid from the Group Variable Universal Life Insurance Program
                are
                treated as a life insurance benefit and, as such are not subject
                to
                Federal, State or FICA tax. However, the benefit may be included
                in the
                participant’s estate for estate tax purposes. 

            
	 	 
	 	
              A
                portion of the Survivor Income Benefit may be subject to Federal
                and State
                income tax.

            
	 	 
	
              Emergency
                Death Benefit/Olin

              Corporate
                Owned Life Insurance

            	
              The
                death benefits paid as an Emergency Death Benefit and the $5,000
                Olin COLI
                death benefit are included as taxable income for Federal and State
                income
                tax purposes. However, for Federal income tax purposes, there is
                a
                one-time exclusion from income of up to $5,000 of cumulative death
                benefit
                proceeds.

            
	 	 
	
              Other

            	
              This
                is a very brief description of tax consequences. You should consult
                with
                your tax advisor concerning the specific taxes associated with these
                benefits.

            
	 	 

    

    

    
 

    
      
        
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          Arch
            Chemicals, Inc. - Senior Executive Life Insurance Plan

          December
            1, 2005

        

        
        

      

      
        
        

        
          

        

      

      
        
        

      

    

    

    

    

    

    Beneficiary

    

    

    
      	 	
              When
                you become eligible for the Arch Senior Executive death benefits,
                you will
                be asked to name a beneficiary, someone who will receive payments
                from the
                Plan’s if you die.

            
	 	 
	 	
              You
                may choose anyone you wish as your beneficiary(ies). You may want
                to name
                a contingent beneficiary(ies) in case your primary beneficiary dies
                before
                you do.

            
	 	 
	 	
              If
                the beneficiary is not living when you die, your death benefits will
                be
                paid to your estate.

            
	 	 
	 	
              It
                is important to review the names of your beneficiary(ies) periodically
                so
                that the benefits will be paid to those you want protected. For example,
                if your marital status changes or your dependents change, you may
                want to
                make a new beneficiary designation. You should also advise your local
                Benefits Administrator of address changes for your beneficiary(ies).
                This
                will help prevent delays in benefit payments.

            
	 	 

    

    

    

    
      
        
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          Arch
            Chemicals, Inc. - Senior Executive Life Insurance Plan

          December
            1, 2005

        

        
        

      

      
        
        

        
          

        

      

      
        
        

      

    

    

    

    

    How
      Long the Senior Executive Life Insurance Plans
      Continue

    

    

    
      	
              In
                the Following Situation:

            	
              This
                Happens to Your Coverage:

            
	 	 
	
              You
                Voluntarily Terminate 

              Employment
                

              (Including
                Retirement &

              Resignation)

            	
              Coverage
                for Group Variable Universal Life Insurance, Survivor Income Benefit,
                Emergency Death Benefit and Olin COLI continues through the end of
                the
                month in which you terminate Full-time employment. You may, however,
                continue the Group Variable Universal Life Insurance by paying the
                applicable premium to Paragon Life.

            
	 	 
	
              You
                are Receiving Severance or 

              Job
                Transition Benefits

            	
              Coverage
                for Group Variable Universal Life Insurance, Survivor Income Benefit,
                Emergency Death Benefit and Olin COLI continues as though you were
                actively at work while you are receiving Job Transition benefits
                or
                Severance payments. When your Severance or Job Transition Benefits
                end,
                you may continue the Group Variable Universal Life Insurance by paying
                the
                applicable premium to Paragon Life.

            
	 	 
	
              You
                are Receiving Short Term 

              Disability
                benefits

            	
              Coverage
                for Group Variable Universal Life Insurance, Survivor Income Benefit,
                Emergency Death Benefit and Olin COLI will continue and will be equal
                to
                the amount of coverage you had immediately before your disability
                began.

            
	 	 
	
              You
                are Receiving Long Term 

              Disability
                benefits

            	
              Coverage
                for Group Variable Universal Life Insurance, Survivor Income Benefit,
                Emergency Death Benefit and Olin COLI will continue and will be equal
                to
                the amount of coverage you had immediately before your disability
                began.
                Coverage will continue for the period you are entitled to LTD payments
                and
                cease upon your retirement. 

            
	 	 
	 	
              Your
                Emergency Death Benefit coverage ends when you are on Long Term
                Disability.

            
	 	 
	
              You
                are on an Unpaid Leave 

              of
                Absence

            	
              Coverage
                for Group Variable Life Insurance, Survivor Income Benefit, Emergency
                Death Benefit and Olin COLI ceases at the end of the month in which
                your
                leave begins. You may continue coverage for Group Variable Universal
                Life
                Insurance and Survivor Income Benefit for the length of your leave
                provided you pay the entire premium.

            
	 	 
	
              The
                Plan is Terminated or 

              Changed
                so that it no Longer 

              Covers
                your Employee Group

            	
              You
                may continue the Group Variable Universal Life Insurance by paying
                the
                applicable premium to Paragon Life. All other coverage
                ends.

            

    

     

    
 

    
      
        
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          Arch
            Chemicals, Inc. - Senior Executive Life Insurance Plan

          December
            1, 2005

        

        
        

      

      
        
        

        
          

        

      

      
        
        

      

    

    

    

    

    

    Plan
      Limitations

    

    

    
      	 	
              Each
                state has different rules regarding payment to a particular Beneficiary.
                For example, in some states, the Beneficiary who is convicted of
                having
                caused the death of the participant may not be entitled to death
                benefits.
                In this case, the benefit would be paid to the estate.

            
	 	 

    

     

     

    

    
      
        
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          Arch
            Chemicals, Inc. - Senior Executive Life Insurance Plan

          December
            1, 2005

        

        
        

      

      
        
        

        
          

        

      

      
        
        

      

    

    

    

    

    Claiming
      Benefits

    

    

    
      	 	
              If
                you die, the Company will contact your beneficiary(ies) as soon as
                possible to explain what benefits are payable and the forms of payment
                available. 

            
	 	 
	 	
              It
                is very important to be sure that your beneficiary designation reflects
                the person(s) you want to receive the benefit, and that their name(s)
                and
                address(es) are correct. 

            
	 	 
	 	
              If
                the person(s) can’t be found, the benefit may be paid to your estate. This
                will delay or prevent the funds from reaching those you want protected.
                

            
	 	 

    

    

    

    
      
        
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          Arch
            Chemicals, Inc. - Senior Executive Life Insurance Plan

          December
            1, 2005

        

        
        

      

      
        
        

        
          

        

      

      
        
        

      

    

    

    

    

    

    Converting
      Your Coverage

    

    

    
      	
              Group
                Variable Universal Life 

              Insurance

            	
              When
                Arch is no longer contributing to your Group Variable Universal Life
                Insurance, you can continue your life insurance by paying the applicable
                premiums directly to Paragon Life.

            
	 	 
	
              Survivor
                Income Benefit, 

              Emergency
                Death Benefit and 

              $5,000
                Olin COLI Death Benefit

            	
              There
                are no conversion privileges for these benefits.

            
	 	 

    

    

    

    
      
        
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          Arch
            Chemicals, Inc. - Senior Executive Life Insurance Plan

          December
            1, 2005

        

        
        

      

      
        
        

        
          

        

      

      
        
        

      

    

    

    

    

    

    Plan
      Administration

    

    

    
      	
              Questions

            	
              Questions
                about the Plan provisions should be directed to your local Benefits
                Administrator.

            
	 	 
	
              Plan
                Administrator

            	
              The
                Plan Administrator is the Welfare and Fringe Benefit Review Committee
                (the
                “Committee”) of Arch Chemicals, Inc. 

            
	 	 
	 	
              The
                Plan Administrator has absolute authority to interpret the terms
                of the
                Plan and to determine any and all matters arising under the Plan
                or in
                connection with its administration, including, without limitation,
                questions concerning eligibility for, and entitlement to, Plan benefits.
                Any interpretation or determination made pursuant to such discretionary
                authority shall be binding on all persons claiming to have an interest
                under the Plan and given full force and effect.

            
	 	 
	 	
              The
                Committee may adopt rules for the administration of the Plan and
                the
                conduct of its business. A majority of the members of such Committee
                shall
                constitute a quorum for transaction of business. All resolutions
                or other
                action taken by the Committee shall be by the vote of at least a
                majority
                of the members present at a meeting, or without a meeting by an instrument
                signed by a majority of the members.

            
	 	 
	 	
              The
                Plan Administrator, and any other fiduciary designated in the Plan,
                such
                as the Claims Administrator, may use, employ, discharge, or consult
                with
                one or more individuals, corporations, or other entities with respect
                to
                advice regarding responsibilities, obligations, or duties in connection
                with this Plan. Arch Chemicals may also designate other individuals,
                corporations, or other entities, who are not named fiduciaries in
                the Plan
                to carry out fiduciary responsibilities, obligations and duties with
                respect to this Plan. Such delegation may be revoked or modified
                at any
                time.

            
	 	 
	
              Claims
                Administrator

            	
              The
                Group Variable Universal Life Insurance is administered and insured
                by
                Paragon Life, 190 Carondelet Plaza, St. Louis, MO 63105, 1-800-846-0124
                or
                online at www.paragonlifeservice.com.

            
	 	 
	
              Plan
                Documents

            	
              The
                Plan Document is this Plan description for the Emergency Death Benefit
                and
                the $5,000 Olin COLI Death Benefit. For Group Variable Universal
                Life the
                applicable plan document is the individual insurance policy. For
                the
                Survivor Income Benefit, the Metropolitan Life Insurance Company
                master
                policy.

            
	 	 

    

     

    
 

    
      
        
          14

          .
            . . . . . . . . . . . . . . . . . . . .
            . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
            . . . . .
            . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

          Arch
            Chemicals, Inc. - Senior Executive Life Insurance Plan

          December
            1, 2005

        

        
        

      

      
        
        

        
          

        

      

      
        
        

      

    

    

    

    

    

    
      	
              Plan
                Amendment or 

              Termination

            	
              Arch
                Chemicals fully expects that the Senior Executive Life Insurance
                Plans
                will continue indefinitely, but reserves the right by resolution
                of its
                Board of Directors or any duly authorized Committee or officer to
                amend,
                modify or terminate the Plan at any time and without notice. This
                includes
                the right to amend, modify or terminate benefits available to retirees
                or
                any other group of employees. 

            
	 	 
	
              ERISA
                Rights

            	
              See
                the ERISA section of your benefits book for details regarding your
                rights
                under ERISA.

            
	 	 

    

    

    

    
      
        
          15

          .
            . . . . . . . . . . . . . . . . . . . .
            . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
            . . . . .
            . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

          Arch
            Chemicals, Inc. - Senior Executive Life Insurance Plan

          December
            1, 2005

        

        
        

      

      
        
        

        
          

        

      

      
        
        

      

    

    

    

    

    

    Plan
      Facts

    

    

    
      	
              Plan
                Name

            	
              Arch
                Chemicals, Inc. Health and Welfare Benefit Plan.

            
	 	 
	
              Employer
                Identification Number

            	
              06-1526315

            
	 	 
	
              Plan
                Number

            	
              501

            
	 	 
	
              Plan
                Sponsor

            	
              Arch
                Chemicals, Inc., 501 Merritt 7, Norwalk, CT 06856-5204, (203) 229-2900.
                Participants and Beneficiaries may receive, upon written request,
                information as to whether a particular employer or employee organization
                is a sponsor of the Plan, and if so, the sponsor’s
                address.

            
	 	 
	
              Plan
                Administrator and

              Named
                Fiduciary

            	
              The
                Welfare and Fringe Benefit Review Committee, located at the same
                address
                as the Plan Administrator. Phone (203) 229-2900.

            
	 	 
	
              Agent
                for Service of 

              Process

            	
              The
                Secretary of Arch Chemicals, Arch Chemicals, Inc., 501 Merritt 7,
                Norwalk,
                CT 06856, (203) 229-2900. Service of legal process may also be made
                on the
                Plan Administrator and the Plan Trustee.

            
	 	 
	
              Plan
                Year

            	
              January
                1 to December 31 of the calendar year.

            
	 	 
	
              Plan
                Type

            	
              Welfare

            
	 	 
	
              Type
                of Coverage

            	
              Life
                Insurance

            

    

    

    
      	
              Plan
                Funding

               

            	
              Arch’s
                contributions for the Group Variable Universal Life Insurance are
                paid in
                premiums to a group universal life insurance policy insured by Paragon
                Life 190 Carondelet Plaza, St. Louis, MO 63105. Arch’s contributions for
                Survivor Income Benefit are paid in premiums to Metropolitan Life
                Insurance Company, P. O. Box 102047, Atlanta, GA 30368-0047. Metropolitan
                determines the benefits payable under the provisions of the Plan.
                Arch
                pays the full cost of the Emergency Death Benefit from its general
                operating funds. Olin pays the full cost of the $5,000 Olin COLI
                Death
                Benefit from its general operating
                funds.

            

    

     

    
 

    
      
        
          16

          .
            . . . . . . . . . . . . . . . . . . . .
            . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
            . . . . .
            . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

          Arch
            Chemicals, Inc. - Senior Executive Life Insurance Plan

          December
            1, 2005

        

        
        

      

      
        
        

        
          

        

      

      
        
        

      

    

    

    

    

    Definitions

    

    

    
      	
              Active
                Service

            	
              The
                period in which a Full-time employee is receiving regular salary
                payments,
                or Short Term Disability payments. Additionally, periods in which
                the
                employee is receiving Long Term Disability payments, Job Transition
                Benefits or severance benefits may also be included as periods of
                Active
                Service.

            
	 	 
	
              Annual
                Salary

            	
              Your
                annual earnings, not including overtime, shift differential, bonus,
                or
                other premium pay.

            
	 	 
	
              Beneficiary(ies)

            	
              The
                person or persons who will receive death benefits from the Plans
                if you
                die.

            
	 	 
	
              Benefits
                Administrator

            	
              The
                individual at your work location who is responsible for assisting
                employees with benefits.

            
	 	 
	
              Full-time
                Employee

            	
              An
                employee who is scheduled to work at least 20 hours a week on a continuous
                basis.

            
	 	 
	
              Monthly
                Salary

            	
              Your
                monthly earnings, not including overtime, shift differential, bonus,
                or
                other premium pay.

            
	 	 

    

     

     

    
      
        17

        .
          . . . . . . . . . . . . . . . . . . . .
          . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
          . . . .
          . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

        Arch
          Chemicals, Inc. - Senior Executive Life Insurance Plan

        December
          1, 2005Exhibit
        10.4

      

      AMENDMENT
        TO THE

      ARCH
        CHEMICALS, INC. EMPLOYEE DEFERRAL PLAN

      

      WHEREAS,
        Arch Chemicals, Inc. (the “Company”) sponsors a non-qualified deferred
        compensation plan known as the Arch Chemicals, Inc. Employee Deferral Plan
        (the
“Plan”) for the benefit of certain salaried employees of Arch and other
        Employing Companies who may be eligible to participate in the Plan;
        and

      

      WHEREAS,
        in Section 15 of the Plan, the Company reserved the right to amend the Plan,
        in
        whole or in part, by action of the Compensation Committee of the Board;
        and

      

      WHEREAS,
        the American Jobs Creation Act of 2004 made substantial changes to the tax
        laws
        affecting non-qualified deferred compensation plans effective as of January
        1,
        2005, which changes were primarily codified in §409A of the Internal Revenue
        Code; and

      

      WHEREAS,
        the Internal Revenue Service issued preliminary guidance concerning Code
§409A
        in IRS Notice 2005-1 and in Proposed Treasury Regulations §1.409A-1 through -6
        (issued on October 4, 2005), which guidance authorized certain transition
        relief
        concerning plan documentation, deferral elections and distribution elections;
        and 

      

      WHEREAS,
        the Company intends to more comprehensively amend and restate the Plan before
        December 31, 2006 (the end of the transition relief period), but in the meantime
        wishes to amend the Plan to take advantage of certain transition relief;
        and

      

      WHEREAS,
        the Compensation Committee of the Board delegated authority to the Vice
        President of Human Resources for the Company to amend the Plan as necessary
        or
        appropriate to comply with Code §409A,

      

      NOW,
        THEREFORE, the Plan is hereby amended as follows:

      

      1. Except
        as
        otherwise provided in this amendment, and notwithstanding any other provisions
        in the Plan to the contrary, effective as of January 1, 2005, the Plan shall
        be
        deemed amended to the extent necessary to comply with Code §409A(a)(2), (3) and
        (4) with respect to amounts deferred pursuant to the Plan prior to January
        1,
        2005 and on and after January 1, 2005, except that benefits payable to
        participants who terminated employment and commenced benefit distributions
        prior
        to January 1, 2005 shall continue to be governed by the terms of the
        Plan
        in effect prior to January 1, 2005, and all Plan provisions shall be interpreted
        accordingly.

      

      2. Notwithstanding
        Section 1, above, pursuant to Notice 2005-1, Q&A 19(c), as extended by the
        transition relief provided in Section XI, C of the Preamble to Proposed
        Regulations, and in accordance with procedures established by the Plan
        Administrator, the Plan is hereby amended effective as of January 1, 2005,
        to
        the extent necessary to provide:

      

      (a) for
        new
        payment elections with respect to amounts deferred prior to the election,
        provided the participant makes the election on or before December 31, 2005;
        and

      

      
        
           

        

        
           

          
            

          

        

        
           

        

         

      

      (b) for
        new
        payment elections on or before December 31, 2006 with respect to both the
        time
        and form of payment of amounts subject to such elections, provided the
        participant makes any applicable election on or before December 31, 2006
        and
        provided the election applies only to amounts that would not otherwise be
        payable in 2006 and does not cause an amount to be paid in 2006 that would
        not
        otherwise be payable in 2006.

      

      

      This
        amendment shall supersede the provisions of the Plan to the extent that those
        provisions are inconsistent with the provisions of this amendment. Except
        as
        amended hereby, and subject to operational compliance with Notice 2005-1
        and
        applicable Treasury Regulations, the terms of the Plan remain in full force
        and
        effect. 

      

      The
        foregoing amendments shall be effective in accordance with their
        terms.

      

      

      IN
        WITNESS WHEREOF, the undersigned has set his hand as of the third day of
        November, 2005. 

    

    
       

      
        	 	 	 
	 	ARCH
                CHEMICALS, INC.
	 
 	 
 	 
 
	 	By:  	/s/Hayes
                Anderson
                
                

	 	Its:	Vice President, Human Resources
	 	
                
Duly
                Authorized

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