Exhibit 10.8 UNION CARBIDE CORPORATION 39 OLD RIDGEBURY ROAD, DANBURY, CT 06817-001 February 10, 1998 R.J. Cottle K3-462 Dear Ron: At its meeting on January 27, 1998, the Board of Directors (the "Board") of Union Carbide Corporation (the "Corporation") authorized your participation in the arrangements set forth in this Severance Compensation Agreement. The Board recognizes that the possibility of a Change in Control of the Corporation exists, as is the case with many publicly held corporations, and the uncertainty and questions which it may raise among management may result in the departure or distraction of management personnel to the detriment of the Corporation and its stockholders. The Board has determined that appropriate steps should be taken to reinforce and encourage the continued attention and dedication of members of the Corporation's management, including yourself, to their assigned duties without distraction in the face of potentially disturbing circumstances arising from a possible Change in Control of the Corporation. The Board has also determined that it is in the best interests of the Corporation and its stockholders to ensure your continued availability to the Corporation in the event of a potential Change in Control of the Corporation. In order to induce you to remain in the employ of the Corporation and in consideration of your continued service to the Corporation, the Corporation agrees that you shall receive the severance benefits set forth in this Severance Compensation Agreement ("Agreement") in the event your employment with the Corporation is terminated subsequent to a Change in Control of the Corporation under the circumstances described below. 1. Definitions. a. "Change in Control of the Corporation" shall be deemed to occur if any of the following circumstances shall occur: (i) any "person" or "group" within the meaning of Sections 13(d) and 14(d)(2) of the Securities Exchange Act of 1934 ("Act") becomes the "beneficial owner" as defined in Rule 13d-3 under the Act of more than 20% of the then outstanding voting securities of the Corporation; (ii) any "person" or "group" within the meaning of Sections 13(d) and 14(d)(2) of the Act acquires by proxy or otherwise the right to vote for the election of directors, for any merger or consolidation of the Corporation or for any other matter or question with respect to more than 20% of the then outstanding voting securities of the Corporation; (iii) if during any period of twenty-four consecutive months, Present Directors and/or New Directors cease for any reason to constitute a majority of the Board. For these purposes, "Present Directors" shall mean individuals who at the beginning of such consecutive twenty-four month period were members of the Board and "New Directors" shall mean any director whose election by the Board or whose nomination for election by the Corporation's stockholders was approved by a vote of at least two-thirds of the Directors then still in office who were Present Directors or New Directors; (iv) the stockholders of the Corporation approve a plan of complete liquidation or dissolution of the Corporation; or (v) there shall be consummated (x) a reorganization, merger or consolidation of all or substantially all of the assets of the Corporation (a "Business Combination"), unless, following such Business Combination, (a) all or substantially all of the individuals and entities who were the beneficial owners, respectively, of the outstanding Common Stock of the Corporation and outstanding voting securities of the Corporation immediately prior to such Business Combination beneficially own, directly or indirectly, more than 50% of, respectively, the then outstanding shares of common stock and the combined voting power of the then outstanding voting securities entitled to vote generally in the election of directors, as the case may be, of the corporation resulting from such Business Combination (including, without limitation, a corporation which as a result of such transaction owns the Corporation or all or substantially all of the Corporation's assets either directly or through one or more subsidiaries) in substantially the same proportions as their ownership, immediately prior to such Business Combination of the outstanding Common Stock of the Corporation and outstanding voting securities of the Corporation, as the case may be, (b) no Person (excluding any corporation resulting from such Business Combination or any employee benefit plan (or related trust) of the Corporation or such corporation resulting from such Business Combination) beneficially owns, directly or indirectly, 20% or more of, respectively, the then outstanding shares of common stock of the corporation resulting from such Business Combination or the combined voting power of the then outstanding voting securities of such corporation except to the extent that such ownership existed prior to the Business Combination, and (c) at least a majority of the members of the board of directors of the corporation resulting from such Business Combination were members of the Board at the time of the execution of the initial agreement, or of the action of the Board, providing for such Business Combination; or (y) any sale, lease, exchange or other transfer (in one transaction or a series of related transactions) of all, or substantially all, of the assets of the Corporation, provided, that the divestiture of less than substantially all of the assets of the Corporation in one transaction or a series of related transactions, whether effected by sale, lease, exchange, spin-off, sale of the stock or merger of a subsidiary or otherwise, shall not constitute a Change in Control of the Corporation. Notwithstanding the foregoing, a Change in Control of the Corporation shall not be deemed to occur: (A) pursuant to Subparagraphs (i) and (ii) above, solely because twenty percent (20%) or more of the combined voting power of the Corporation's then outstanding securities is acquired by one or more employee benefit plans maintained by the Corporation; or (B) pursuant to Subparagraph (v)(y) above, if the Board determines that any sale, lease, exchange or transfer does not involve substantially all of the assets of the Corporation. b. "Code" shall mean the Internal Revenue Code of 1986, as amended. c. "Date of Termination" shall mean: (i) in case employment is terminated for Disability, thirty (30) days after Notice of Termination is given (provided that you shall not have returned to the full-time performance of your duties during such thirty (30) day period), and (ii) in all other cases, the date specified in the Notice of Termination (which shall not be less than thirty (30) nor more than sixty (60) days, respectively, from the date such Notice of Termination is given). d. "Disability" shall mean total physical or mental disability rendering you unable to perform the duties of your employment for a continuous period of six (6) months. Any question as to the existence of your Disability upon which you and the Corporation cannot agree shall be determined by a qualified physician not employed by the Corporation and selected by you (or, if you are unable to make such selection, it shall be made by any adult member of your immediate family), and approved by the Corporation. The determination of such physician made in writing to the Corporation and to you shall be final and conclusive for all purposes of this Agreement. e. "Good Reason for Resignation" shall mean, without your express written consent, any of the following: (i) (A) a change in your status or position with the Corporation, which in your reasonable judgment does not represent a promotion from your status or position, immediately prior to a Change in Control of the Corporation; or (B) a reduction in the level of your reporting responsibility as it existed immediately prior to a Change in Control of the Corporation; or (C) the assignment to you of any duties or responsibilities or diminution of duties or responsibilities which in your reasonable judgment are inconsistent with your status or position with the Corporation in effect immediately prior to a Change in Control of the Corporation; it being understood that any of the foregoing in connection with a termination of your employment for Retirement, Disability or Termination for Cause shall not constitute Good Reason for Resignation; (ii) a reduction by the Corporation in the annual rate of your base salary as in effect immediately prior to the date of a Change in Control of the Corporation or as the same may be increased from time to time thereafter, or the Corporation's failure to increase the annual rate of your base salary for a calendar year in an amount at least equal to the average percentage increase in base salary for all employees of the Corporation with Severance Compensation Agreements in the preceding calendar year. Within three (3) days after your request, the Corporation shall notify you of the average percentage increase in base salary for all such employees of the Corporation in the calendar year preceding your request; (iii) the Corporation requiring you to be based outside of a fifteen (15) mile radius from where your office is located immediately prior to a Change in Control of the Corporation except for required travel on the Corporation's business to an extent substantially consistent with your business travel obligations immediately prior to a Change in Control of the Corporation; (iv) the failure by the Corporation to continue in effect any compensation plan in which you participate as in effect immediately prior to a Change in Control of the Corporation, including but not limited to the Retirement Program, the Savings Program, the Profit Sharing Plan, any of the Incentive Compensation Plans, compensation deferral plans, or any substitute plans adopted prior to a Change in Control of the Corporation, unless an arrangement satisfactory to you (embodied in an ongoing substitute or alternative plan) has been made with respect to such plan, or the failure by the Corporation to continue your participation therein on at least as favorable a basis, both in terms of the amount of benefits provided and the level of your participation relative to other participants, as existed immediately prior to a Change in Control of the Corporation; (v) the failure by the Corporation to continue to provide you with benefits at least as favorable as those enjoyed by you (and your dependents, if applicable) under any of the Corporation's pre- retirement and post-retirement life insurance, medical, health and accident, and disability plans or any other plan, program or policy of the Corporation intended to benefit employees in which you were participating immediately prior to a Change in Control of the Corporation, the taking of any action by the Corporation which would directly or indirectly materially reduce any of such benefits or deprive you of any material fringe benefit enjoyed by you immediately prior to a Change in Control of the Corporation, or the failure by the Corporation to provide you with the number of annual paid vacation days to which you were annually entitled immediately prior to a Change in Control of the Corporation; (vi) the failure of the Corporation to obtain a satisfactory agreement from any Successor (as defined in Paragraph 4a hereof) to assume and agree to perform this Agreement, as contemplated in Paragraph 4a hereof; or (vii) the failure of the Corporation to pay to you an Incentive Compensation Award, a Profit Sharing Award, deferred compensation or other compensation award earned, but not paid, prior to a Change in Control of the Corporation. f. "Incentive Compensation" means any compensation, variable compensation, bonus, benefit or award paid or payable in cash under an Incentive Compensation Plan. g. "Incentive Compensation Award" shall mean (i) a cash payment or payments awarded to you under any Incentive Compensation Plan and (ii) the amount by which your variable compensation is reduced in accordance with the 1997 Union Carbide Corporation EPS Incentive Plan. h. "Incentive Compensation Plan(s)" shall mean any variable compensation or incentive compensation plan maintained by the Corporation in which you were a participant immediately prior to a Change in Control of the Corporation including, but not limited to: (i) 1997 Union Carbide Long Term Incentive Plan; (ii) 1997 Union Carbide Variable Compensation Plan; (iii) 1995 Union Carbide Performance Incentive Plan; and (iv) Benefit Capital Management Corporation Annual Incentive Plan. Notwithstanding the forgoing, Incentive Compensation Plan shall not include the 1997 Union Carbide Corporation EPS Incentive Plan i. "Notice of Termination" shall mean a written notice as provided in Paragraph 8 hereof. j. "Profit Sharing Award" shall mean a cash payment or payments under the Profit Sharing Plan, plus any profit sharing allocation under the Employee Stock Ownership Plan part of the Savings Program. k. "Profit Sharing Plan" shall mean the Union Carbide Corporation Profit Sharing Plan. l. "Retirement" shall mean (1) termination in accordance with any retirement arrangement other than under the Corporation's Retirement Program, which is established with your consent with respect to you, or (2) mandatory retirement as set forth under the policy of the Corporation as it existed prior to a Change in Control of the Corporation or as agreed to by you following a Change in Control of the Corporation. m. "Retirement Program" shall mean the Retirement Program Plan for Employees of Union Carbide Corporation and Its Participating Subsidiary Companies and any excess or supplemental pension plans maintained by the Corporation. n. "Savings Program" shall mean the Savings and Investment Program for Employees of Union Carbide Corporation and Participating Subsidiary Companies. o. "Termination for Cause" shall mean termination of your employment upon your willfully engaging in conduct demonstrably and materially injurious to the Corporation, monetarily or otherwise, provided that there shall have been delivered to you a copy of a resolution duly adopted by the unanimous affirmative vote of the entire membership of the Board at a meeting of the Board called and held for such purpose (after reasonable notice to you and an opportunity for you, together with your counsel, to be heard before the Board), finding that in the good faith opinion of the Board you were guilty of the conduct set forth and specifying the particulars thereof in detail. For purposes of this clause o, no act, or failure to act, on your part shall be deemed "willful" unless done, or omitted to be done, by you in bad faith and without reasonable belief that your action or omission was in the best interest of the Corporation. Any act or failure to act based upon authority given pursuant to a resolution duly adopted by the Board or based upon the advice of counsel for the Corporation shall be conclusively presumed to be done or omitted to be done by you in good faith and in the best interests of the Corporation. p. "Variable Compensation Year" means a calendar year of an Incentive Compensation Plan. 2. Compensation Upon Termination or While Disabled. Following a Change in Control of the Corporation, you shall be entitled to the following benefits: a. Termination Other Than for Retirement, Death, Disability or Termination for Cause; Termination By Your Resignation with Good Reason for Resignation. If your employment by the Corporation shall be terminated subsequent to a Change in Control of the Corporation and during the term of this Agreement (a) by the Corporation other than for Retirement, Death, Disability or Termination for Cause, or (b) by you for Good Reason for Resignation, then you shall be entitled to the benefits provided below, without regard to any contrary provision of any plan: (i) Accrued Salary. The Corporation shall pay you, not later than the fifth day following the Date of Termination, your base salary and vacation pay accrued through the Date of Termination (including any banked vacation, vested vacation for the calendar year in which the Date of Termination occurs and pro-rated, vested vacation for the calendar year following the year in which the Date of Termination occurs) at the rate in effect at the time the Notice of Termination is given (or at the rate in effect immediately prior to a Change in Control of the Corporation, if such rate was higher). (ii) Accrued Incentive Compensation. The Corporation shall pay you, not later than thirty (30) days following your Date of Termination, the amount of your accrued Incentive Compensation which shall be the sum of the amounts set forth in the following paragraphs (A) and (B). (A) If the Date of Termination is after the end of a Variable Compensation Year, but before Incentive Compensation for said Variable Compensation Year has been paid, the Corporation shall pay to you under this Agreement for your service during such Variable Compensation Year the greatest of the amounts set forth in the following paragraphs (I), (II), (III) and (IV): (I) an amount that bears the same ratio to your base salary in said Variable Compensation Year as the Incentive Compensation paid to you with respect to the immediately prior Variable Compensation Year bears to your base salary for said prior Variable Compensation Year; (II) an amount that bears the same ratio to your base salary for such Variable Compensation Year as the average Incentive Compensation paid to you during the three (3) immediately prior Variable Compensation Years bears to your average base salary for said three (3) prior years; (III) the amount of your target variable compensation payment (i.e., the percent of your salary grade midpoint at risk) for such Variable Compensation Year; or (IV) the average amount of Incentive Compensation, as a percentage of base salary, paid to other executives of the Corporation at the same (or equivalent) grade level as yourself. (B) In addition, if the Date of Termination is other than the first day of a Variable Compensation Year, the Corporation shall pay to you under this Agreement for your service during such Variable Compensation Year up to the Date of Termination, the greatest of the amounts set forth in the following paragraphs (I), (II) and (III): (I) an amount that bears the same ratio to your base salary (earned up to the Date of Termination) in said Variable Compensation Year as the Incentive Compensation paid to you with respect to the immediately prior Variable Compensation Year under the Incentive Compensation Plan or pursuant to clause (A) above bears to your base salary for said prior Variable Compensation Year; (II) an amount that bears the same ratio to your base salary earned (up to the Date of Termination) for such Variable Compensation Year as the average Incentive Compensation paid to you with respect to the three (3) Variable Compensation Years immediately prior to such Variable Compensation Year under the Incentive Compensation Plan or pursuant to clause (A) above bears to your average base salary for said three (3) prior years; or (III) the amount of your target variable compensation payment (i.e., the percent of your salary grade midpoint at risk) for such Variable Compensation Year multiplied by a fraction, the numerator of which is the total number of days which have elapsed in the current Variable Compensation Year to the Date of Termination, and the denominator of which is three hundred sixty-five (365). If there is more than one Incentive Compensation Plan, your accrued Incentive Compensation under each Incentive Compensation Plan shall be determined separately for each such Plan. For the purpose of determining the amount of your accrued Incentive Compensation under this Paragraph 2a(ii), you will be deemed to have been paid the full amount of all prior Incentive Compensation, whether or not such Incentive Compensation was includible in your gross income for Federal income tax purposes. (iii) Insurance Coverage. The Corporation shall arrange to provide you (and your dependents, if applicable) with life, disability, accident, dental and medical benefits substantially equivalent to those which you are receiving, or were entitled to receive, from the Corporation or a subsidiary of the Corporation immediately prior to a Change in Control of the Corporation. Such benefits shall be provided to you for the longer of (x) thirty-six (36) months after such Date of Termination or (y) the period during which such benefits would have been provided to you, as a terminated employee, under the applicable life, disability, accident, dental and medical plans in effect immediately prior to a Change in Control of the Corporation (except that after a period of thirty-six (36) months such benefits shall be provided to you on the same financial terms and conditions as provided for under the respective plans). If you are a participant in the Corporation's Executive Life Insurance Plan, you shall have the same rights thereunder as a person who retires with a non-actuarially reduced pension (whether or not you are eligible for such a pension). Should it be determined that any of the medical benefits to be provided to you (and your dependents, if applicable) under this subparagraph (iii) could be included in your gross income for federal, state or local tax purposes, then the following shall apply: (A) If you have a right to receive an immediate pension on your Date of Termination, then you shall participate in the Corporation's medical benefit plans as if you retired from the Corporation on your Date of Termination, except that the Corporation shall provide such medical coverage at no cost to you for three (3) years following your Date of Termination and thereafter, you shall participate therein on the same terms as other retired employees; (B) If you do not have a right to receive an immediate pension on your Date of Termination, you will no longer continue to participate in the Corporation's medical benefit plans and (i) the Corporation shall provide you with a cash payment in an amount equal to the amount required by you to pay for coverage under COBRA for the first eighteen (18) months following your loss of medical coverage, and thereafter, (ii) the Corporation shall, for the subsequent eighteen (18) months, purchase for you at its cost, a policy of medical insurance providing benefits substantially similar to the benefits you would have received under the Corporation's medical benefit plans. (iv) Retirement Benefits. The Corporation shall pay you, as hereafter provided in this subparagraph (iv), at the time you are entitled to be paid a retirement pension under the Retirement Program, a retirement pension equal to the greater of: (A) an amount computed in accordance with the terms of the Retirement Program in effect immediately prior to a Change in Control of the Corporation and as if those terms were in effect on the Date of Termination, or (B) an amount computed in accordance with the terms of the Retirement Program in effect on the Date of Termination; in either case less the amount of retirement pension actually to be paid to you under the Retirement Program in the absence of this subparagraph (iv). In computing the amounts of your retirement pension under clauses (A) and (B) above, three years shall be added to your actual age and to your actual Company Service Credit under the Retirement Program so that your retirement pension under clauses (A) and (B) above will be the amount it would have been if you had been three years older than you actually were, and you had three years more Company Service Credit than you actually had, on the Date of Termination. If for any reason, the benefits under this subparagraph (iv) cannot be paid under the tax-qualified portion of the Retirement Program, the Corporation shall, at its option, provide such benefits to you through the purchase, and delivery to you, of a non-qualified annuity from an insurance company, or pay you a lump sum payment for the benefits under this subparagraph (iv) calculated under such one of the following options as would produce the highest lump sum payment: (I) calculated under the same factors (interest rate and mortality) as lump sum payments are made under the Corporation's Supplemental Retirement Income Plan and Equalization Benefit Plan as in effect immediately prior to a Change in Control of the Corporation; (II) calculated under the same factors (interest rate and mortality) as lump sum payments are made under the Corporation's Supplemental Retirement Income Plan and Equalization Benefit Plan, or other similar plans, as in effect on the Date of Termination; or (III) calculated under the same factors (interest rate and mortality) as lump sum payments would have been calculated under the Corporation's Supplemental Retirement Income Plan and Equalization Benefit Plan on the Date of Termination, if such factors were determined using the same methodology as such plans used prior to a Change in Control of the Corporation. (v) Outplacement Counseling. The Corporation shall make available to you, at the Corporation's expense, outplacement counseling for a period of up to one year. You may select the organization that will provide the outplacement counseling, however, the Corporation's obligation to provide you benefits under this subparagraph (v) shall be limited to $35,000. (vi) Financial Counseling. The Corporation shall, within 60 days of the Date of Termination, make available to you financial counseling, tax counseling and tax preparation services. You may select the organization that will provide such services. However, the Corporation's obligation to provide you benefits under this subparagraph (vi) shall be limited to $10,000. The Corporation shall provide to you any information you request regarding your personal and financial situation that you wish to provide to the financial counseling firm in order for the firm to provide the counseling services required by this subparagraph (vi). (vii) Severance Payment. The Corporation shall pay as a severance payment to you, not later than the fifth day following the Date of Termination, a lump sum severance payment (the "Severance Payment") equal to three (3) times the sum of the amounts set forth in the following paragraphs (A), (B), (C), (D) and (E): (A) the greater of your annual base salary which was payable to you by the Corporation immediately prior to the Date of Termination or your annual base salary which was payable to you by the Corporation immediately prior to a Change in Control of the Corporation; plus (B) the greater of: (I) the amount of your most recent Profit Sharing Award received prior to the Date of Termination; or (II) the amount of your most recent Profit Sharing Award received prior to a Change in Control of the Corporation; or (III) an amount that bears the same ratio to your annual base salary in effect immediately prior to the Date of Termination, or, if higher, your annual base salary in effect immediately prior to a Change in Control of the Corporation, as the average Profit Sharing Award paid or payable to you during the three (3) immediately full calendar years prior to the Date of Termination bears to your average base salary for said three (3) prior years; plus (C) the greater of: (I) the amount of your most recent Incentive Compensation Award received prior to the Date of Termination; or (II) the amount of your most recent Incentive Compensation Award received prior to a Change in Control of the Corporation; or (III) an amount that bears the same ratio to your annual base salary in effect immediately prior to the Date of Termination, or, if higher, your annual base salary in effect immediately prior to a Change in Control of the Corporation, as the average Incentive Compensation Award paid to you with respect to the three (3) immediately prior Incentive Compensation Years bears to your average base salary for said three (3) prior years; plus (D) the greater of: (I) the value, as determined by the Corporation at the time of the grant, attributable to any stock options awarded to you by the Corporation at the most recent date of grant of stock options prior to the Date of Termination; or (II) the value, as determined by the Corporation at the time of grant, attributable to any stock options awarded to you by the Corporation at the most recent date of grant of stock options prior to a Change in Control of the Corporation. In determining such value, the number of stock options awarded to you shall be multiplied by the value ascribed to a stock option by the Corporation using the Black- Scholes method or other similar methodology. If at the time of either of such grants it is specified in writing that the grant covers a period of more than one year, then the value of such grant as determined above shall be annualized by dividing such value by the number of years (or part thereof) the grant is specified to cover; plus (E) the greater of: (I) the value, as determined by the Corporation at the time of the grant, attributable to the grant to you by the Corporation of performance or restricted stock of the Corporation at the most recent date of grant prior to the Date of Termination; or (II) the value, as determined by the Corporation at the time of grant, attributable to the grant to you by the Corporation of performance or restricted stock of the Corporation at the most recent date of grant prior to a Change in Control of the Corporation. If at the time of either of such grants it is specified in writing that the grant covers a period of more than one year, then the value of such grant as determined above shall be annualized by dividing such value by the number of years (or part thereof) the grant is specified to cover. In determining such annualized value, the number of shares of performance or restricted stock awarded to you shall be multiplied by the closing price of the common stock of the Corporation on the New York Stock Exchange-Composite Transactions on the date of grant. For purposes of calculations under this subparagraph (vii), the amounts of base salary, Profit Sharing Awards and Incentive Compensation Awards shall be the amounts calculated without regard to whether or not such amounts were includible in your gross income for Federal income tax purposes. The Severance Payment shall not be reduced to the extent the Corporation could not properly deduct amounts paid pursuant to Paragraph 2a(i) through 2a(vii) hereof or otherwise pursuant to Section 280G of the Code. (viii) Reduction in Severance Payment. The Severance Payment shall be reduced only in the event specified in this subparagraph (viii). If the aggregate present value, as determined for purposes of Code Section 280G, of all amounts that are parachute payments for purposes of such Section exceeds the limitation set forth in Code Section 280G(b)(2)(A)(ii) by an amount not exceeding $50,000, then there shall be a reduction in the amount of your Severance Payment so that such limit is not exceeded. (ix) Payment of Taxes. (A) For purposes of this subparagraph (ix), the following terms shall have the following meanings: (I) Payment shall mean any payment or distribution (or acceleration of benefits) by the Corporation to or for your benefit (whether paid or payable or distributed or distributable (or accelerated) pursuant to the terms of this Agreement or otherwise, but determined without regard to any additional payments required under this subparagraph (ix)). In addition, Payment shall also include the amount of income deemed to be received by you as a result of the acceleration of the exercisability of any of your options to purchase stock of the Corporation, the acceleration of the lapse of any restrictions on performance stock or restricted stock of the Corporation held by you or the acceleration of payment from any deferral plan. (II) Excise Tax shall mean the excise tax imposed by Section 4999 of the Code, or any interest or penalties incurred by you with respect to such excise tax. (III) Income Tax shall mean all taxes other than the Excise Tax (including any interest or penalties imposed with respect to such taxes) including, without limitation, any income and employment taxes imposed by any federal (including (i) FICA and Medicare taxes, and (ii) the tax resulting from the loss of any federal deductions or exemptions which would have been available to you but for receipt of the Payment), state, local, commonwealth or foreign government. (B) In the event it shall be determined that a Payment would be subject to an Excise Tax, then you shall be entitled to receive an additional payment (a "Gross-Up Payment") in an amount such that after payment by you of Income Tax and Excise Tax imposed upon the Gross-Up Payment, you retain an amount of the Gross-Up Payment equal to the Excise Tax imposed upon the Payment. (C) All determinations required to be made under this subparagraph (ix), including whether and when a Gross-Up Payment is required and the amount of such Gross-Up Payment and the assumptions to be utilized in arriving at such determination, shall be made by the public accounting firm that is retained by the Corporation as of the date immediately prior to a Change in Control of the Corporation (the "Accounting Firm") which shall provide detailed supporting calculations both to the Corporation and to you within fifteen (15) business days of the receipt of notice from you that there has been a Payment, or such earlier time as is requested by the Corporation (collectively, the "Determination"). In the event that the Accounting Firm is serving as accountant or auditor for the individual, entity or group effecting a Change in Control of the Corporation, you may appoint another nationally recognized public accounting firm to make the determinations required hereunder (which accounting firm shall then be referred to as the Accounting Firm hereunder). All fees and expenses of the Accounting Firm shall be borne solely by the Corporation. Any Gross-Up Payment, as determined pursuant to this subparagraph (ix), shall be paid by the Corporation to you within ten (10) days of the Determination. If the Accounting Firm determines that no Excise Tax is payable by you, you may request the Accounting Firm to furnish you with a written opinion that failure to report the Excise Tax on your applicable federal income tax return would not result in the imposition of a negligence or similar penalty. The Determination by the Accounting Firm shall be binding upon the Corporation and you. As a result of the uncertainty in the application of Section 4999 of the Code at the time of the Determination, it is possible that Gross-Up Payments which will not have been made by the Corporation should have been made ("Underpayment"), consistent with the calculations required to be made hereunder. In the event that the Corporation exhausts its remedies pursuant to subparagraph (ix)(D) below and you thereafter are required to make payment of any Excise Tax or income Tax, the Accounting Firm shall determine the amount of the Underpayment that has occurred and any such Underpayment shall be promptly paid by the Corporation to or for your benefit. (D) You shall notify the Corporation in writing of any claim by the Internal Revenue Service that, if successful, would require the payment by the Corporation of the Gross-Up Payment or the Underpayment. Such notification shall be given as soon as practicable but no later than ten (10) business days after you are informed in writing of such claim and shall apprise the Corporation of the nature of such claim and the date on which such claim is requested to be paid. You shall not pay such claim prior to the expiration of the 30-day period following the date on which you give such notice to the Corporation (or such shorter period ending on the date that any payment of taxes with respect to such claim is due). If the Corporation notifies you in writing prior to the expiration of such period that it desires to contest such claim, you shall: (1) give the Corporation any information reasonably requested by the Corporation relating to such claim, (2) take such action in connection with contesting such claim as the Corporation shall reasonably request in writing from time to time, including, without limitation, accepting legal representation with respect to such claim by an attorney reasonably selected by the Corporation, (3) cooperate with the Corporation in good faith in order effectively to contest such claim, and (4) permit the Corporation to participate in any proceeding relating to such claim; provided, however, that the Corporation shall bear and pay directly all costs and expenses (including additional interest and penalties) incurred in connection with such contest and shall indemnify and hold you harmless, on an after-tax basis, for any Excise Tax or Income Tax imposed as a result of such representation and payment of costs and expenses. Without limitation on the foregoing provisions of this subparagraph (ix)(D), the Corporation shall control all proceedings taken in connection with such contest and, at its sole option, may pursue or forego any and all administrative appeals, proceedings, hearings and conferences with the taxing authority in respect of such claim and may, at its sole option, either direct you to pay the tax claimed and sue for a refund or contest the claim in any permissible manner, and you agree to prosecute such contest to a determination before any administrative tribunal, in a court of initial jurisdiction and in one or more appellate courts, as the Corporation shall determine; provided further, that if the Corporation directs you to pay such claim and sue for a refund, the Corporation shall advance the amount of such payment to you on an interest-free basis and shall indemnify and hold you harmless, on an after-tax basis, from any Excise Tax or Income Tax imposed with respect to such advance or with respect to any imputed income with respect to such advance; and provided further, that any extension of the statute of limitations relating to payment of taxes for your taxable year with respect to which such contested amount is claimed to be due is limited solely to such contested amount. Furthermore, the Corporation's control of the contest shall be limited to issues with respect to which a Gross-Up Payment would be payable hereunder and you shall be entitled to settle or contest, as the case may be, any other issue raised by the Internal Revenue Service or any other taxing authority. (E) If, after the receipt by you of an amount advanced by the Corporation pursuant to subparagraph (ix)(D) above, you become entitled to receive, and receive, any refund with respect to such claim, you shall (subject to the Corporation's complying with the requirements of subparagraph (ix)(D)) promptly pay to the Corporation the amount of such refund (together with any interest paid or credited thereon after taxes applicable thereto). If, after the receipt by you of an amount advanced by the Corporation pursuant to subparagraph (ix)(D), a determination is made that you shall not be entitled to any refund with respect to such claims and the Corporation does not notify you in writing of its intent to contest such denial of refund prior to the expiration of thirty (30) days after such determination, then such advance shall be forgiven and shall not be required to be repaid. (x) No Duty to Mitigate. You shall not be required to mitigate the amount of any payment provided for in this Paragraph 2 by seeking other employment or otherwise, nor shall the amount of any payment or benefit hereunder be reduced by any compensation earned by you as the result of employment by another employer or by retirement benefits after the Date of Termination, or otherwise; provided, however, should you become reemployed in a job which (a) offers medical plan benefits which are equal to or greater than the medical plan benefits provided to you under subparagraph 2(a)(iii), and (b) such medical plan benefits are offered to you at no cost, you shall no longer be eligible to receive medical plan benefits under this Agreement. b. Payments While Disabled. During any period prior to the Date of Termination and during the term of this Agreement that you are unable to perform your full-time duties with the Corporation, whether as a result of your Disability or as a result of a physical or mental disability that is not total and therefore is not a Disability, you shall continue to receive your base salary at the rate in effect at the commencement of any such period, together with all other compensation and benefits that are payable or provided under the Corporation's benefit plans, including its disability plans. After the Date of Termination for Disability, your benefits shall be determined in accordance with the Retirement Program, insurance and other applicable programs of the Corporation. The compensation and benefits, other than salary, payable or provided pursuant to this subparagraph b shall be the greater of (x) the amounts computed under the Retirement Program, disability benefit plans, insurance and other applicable programs in effect immediately prior to a Change in Control of the Corporation, and (y) the amounts computed under the Retirement Program disability benefit plans, insurance and other applicable programs in effect at the time the compensation and benefits are paid. c. Payments if Terminated for Cause, or Termination by You Other Than With Good Reason for Resignation. If your employment shall be terminated by the Corporation as a Termination for Cause or by you other than with Good Reason for Resignation, the Corporation shall pay you your full base salary and accrued vacation pay (including any banked vacation, vested vacation for the calendar year in which the Date of Termination occurs, and prorated, vested vacation for the calendar year following the year in which the Date of Termination occurs) through the Date of Termination, at the rate in effect at the time Notice of Termination is given, plus any benefits or awards which have been earned or become payable but which have not yet been paid to you. You shall receive any payment due under this subparagraph c on your Date of Termination. Thereafter, the Corporation shall have no further obligation to you under this Agreement. d. After Retirement or Death. If your employment shall be terminated by your Retirement, or by reason of your death, your benefits shall be determined in accordance with the Corporation's retirement and insurance programs then in effect. 3. Term of Agreement. This Agreement shall commence on the date hereof and shall continue in effect through December 31 1998; provided, however, that commencing on January 1, 1999 and each January 1 thereafter, the term of this Agreement shall automatically be extended for one additional year unless, not later than September 30 of the preceding year, the Corporation or you shall have given notice that it or you does not wish to extend this Agreement. Notwithstanding any such notice by the Corporation not to extend, if a Change in Control of the Corporation shall have occurred during the original or any extended term of this Agreement, or within three months thereafter, this Agreement shall continue in effect. In any event, the term of this Agreement shall expire on the third (3rd) anniversary of the date of a Change in Control of the Corporation. This Agreement shall terminate if your employment is terminated by you or the Corporation prior to a Change in Control of the Corporation. 4. Successors; Binding Agreement. a. Successors of the Corporation. The Corporation will require any Successor to expressly assume and agree to perform this Agreement in the same manner and to the same extent that the Corporation would be required to perform it if no such succession had taken place. Failure of the Corporation to obtain such assent at least five business days prior to the time a person becomes a Successor (or where the Corporation does not have at least five business days advance notice that a person may become a Successor, within three business days after having notice that such person may become or has become a Successor) shall constitute Good Reason for Resignation by you and, if a Change in Control of the Corporation has occurred or thereafter occurs, shall entitle you immediately to the benefits provided in Paragraph 2a hereof upon delivery by you of a Notice of Termination. For purposes of this Agreement, "Successor" shall mean any person that obtains or succeeds to, or has the practical ability to control (either immediately or with the passage of time), the Corporation's business directly, by merger or consolidation, or indirectly, by purchase of voting securities of the Corporation by acquisition of rights to vote voting securities of the Corporation or otherwise, including but not limited to any person or group that acquires the beneficial ownership or voting rights described in Paragraph 1a(i) or (ii). b. Your Successor. This Agreement shall inure to the benefit of and be enforceable by your personal or legal representatives, executors, administrators, successors, heirs, distributees, devisees and legatees. If you should die following your Date of Termination while any amount would still be payable to you hereunder if you had continued to live, all such amounts, unless otherwise provided herein, shall be paid in accordance with the terms of this Agreement to your devisee, legatee or other designee or, if there is no such designee, to your estate. 5. Nature of Payments. All payments to you under this Agreement shall be considered either payments in consideration of your continued service to the Corporation or severance payments in consideration of your past service to the Corporation. 6. Validity. The invalidity or unenforceability of any provision of this Agreement shall not affect the validity or enforceability of any other provision of this Agreement, which shall remain in full force and effect. 7. Counterparts. This Agreement may be executed in several counterparts, each of which shall be deemed to be an original but all of which together will constitute one and the same instrument. 8. Notice. Any purported termination of your employment by the Corporation or by you following a Change in Control of the Corporation shall be communicated to the other party by a written Notice of Termination. A Notice of Termination by you shall indicate in reasonable detail the facts and circumstances claimed to provide a basis for a Good Reason for Resignation. For the purpose of this Agreement, notices and all other communications provided for in the Agreement shall be in writing and shall be deemed to have been duly given when delivered or mailed by United States registered mail, return receipt requested, postage prepaid, addressed to the respective addresses set forth on the first page of this Agreement, provided that all notices to the Corporation shall be directed to the attention of the Board with a copy to the Secretary of the Corporation or to such other address as either party may have furnished to the other in writing in accordance herewith, except that notice of change of address shall be effective only upon receipt. 9. Fees and Expenses. The Corporation shall pay all legal fees and related expenses incurred by you as a result of your termination following a Change in Control of the Corporation or by you in seeking to obtain or enforce any right or benefit provided by this Agreement (including all fees and expenses, if any, incurred in contesting or disputing any such termination or incurred by you in seeking advice in connection therewith). 10. Miscellaneous. No provision of this Agreement may be amended, modified, waived or discharged unless such amendment, modification, waiver or discharge is agreed to in writing and signed by you and such officer as may be specifically designated by the Board. No waiver by either party hereto at any time of any breach by the other party hereto of, or compliance with, any condition or provision of this Agreement to be performed by such other party shall be deemed a waiver of similar or dissimilar provisions or conditions at the same or at any prior or subsequent time. No agreements or representations, oral or otherwise, express or implied, with respect to the subject matter hereof have been made by either party which are not expressly set forth in this Agreement. 11. Governing Law. The validity, interpretation, construction and performance of this Agreement shall be governed by the laws of the State of New York (without regard to the choice of laws provisions thereof). If this letter sets forth our agreement on the subject matter hereof, kindly sign and return to the Corporation the enclosed copy of this letter which will then constitute our agreement on this subject. Sincerely, UNION CARBIDE CORPORATION By: /s/ M.A. Kessinger M.A. Kessinger Title: Vice President-Human Resources Agreed to this 20th day of February, 1998 /s/ Cottle Employee