**Senior      Executive**

**Life      Insurance P**

**lan**

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**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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**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.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |
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|   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |
|   | 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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**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.      |
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|                                                                                                                   |                                                                                                                                                                                                                                                                                                                                |
| **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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**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. |
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|   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |
|   | 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; |
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|                                             ·   | Employees                  who die after their last day of Active Service with                  Arch; |
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|                                             ·   | 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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**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.                                                                                                                              |
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|                                                 |                                                                                                                                                                                                                                                                                                                                 |
| **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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**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. |
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|                                                 |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |
|                                                 | 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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**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. |
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|   |                                                                                                                                                                                                                                                                                                                                                                                |
|   | 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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**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. |
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|         |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  |
|         | The                beneficiary for this Plan is deemed to be the beneficiary of record                for                Group Variable Universal Life Insurance.                                                                                                                                                                                                                                                                                                                                                                                                                     |
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|         |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  |
| **Premiums** | Olin                is responsible for any premiums due on this policy                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
|         |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  |

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**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.                                                      |
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|                                                                                                    | 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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**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.                                                                                                                                                                                                                                                                                                       |
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|   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |
|   | 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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**How      Long the Senior Executive Life Insurance **
**Plans      Continue**

| **In                the Following Situation:**                                                                                           | **This                Happens to Your Coverage:**                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |
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|                                                                                                                                     |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| **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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**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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**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.                                      |
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|   | 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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**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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**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.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
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|                                    | 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.                                                                                                                                                                                                                                               |
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|                                    | 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. |
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| **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.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |
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| **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.                                                                                                                                                                                                                                                                                                                                                                        |
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| **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. |
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|                                                |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |
| **ERISA                Rights**                     | See                the ERISA section of your benefits book for details regarding your                rights                under ERISA.                                                                                                                                                                                                                                                                                                                                                                                                                                              |
|                                                |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |

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**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.                                                                                                                                                                                                                                                                                                        |
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| **Plan                Type**                                                | Welfare                                                                                                                                                                                                                                                                                                                                                              |
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| **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. |
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**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. |
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|                                      |                                                                                                                                                                                                                                                                                                                                                                                                                               |
| **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.                                                                                                                                                                                                                                                                                                       |
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| **Full-time                Employee**     | An                employee who is scheduled to work at least 20 hours a week on a continuous                basis.                                                                                                                                                                                                                                                                                                                 |
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| **Monthly                Salary**         | Your                monthly earnings, not including overtime, shift differential, bonus,                or                other premium pay.                                                                                                                                                                                                                                                                                       |
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