Document:

EX-10.3

FIRST AMENDMENT TO SEVERANCE AND RETENTION AGREEMENT

This First Amendment (“Amendment”) to the Severance and Retention Agreement (the “Severance
Agreement”) by and between CSK AUTO, INC., an Arizona corporation (the “Company”) and      
(the “Executive”), dated as of      , is made and entered into as of the      day of      ,
2006.

WHEREAS, the Executive and the Company have entered into the Severance Agreement governing the
terms and conditions of the Executive’s involuntary termination of employment without Cause or
voluntary termination for Good Reason, either before or after a Change in Control; and

WHEREAS, the Company established the CSK Auto Corporation Long-Term Incentive Plan (the
“LTIP”), effective as of June 28, 2005, which, inter alia, provides for the acceleration of LTIP
benefits upon an involuntary termination of employment without Cause or a voluntary termination for
Good Reason following a Change in Control; and

WHEREAS, as a result of the establishment of the LTIP, the Company and the Executive wish to
amend the Severance Agreement to include certain provisions of the LTIP concerning Change in
Control excise tax gross-up payments; and

WHEREAS, the Company and Executive wish to further amend the Severance Agreement, effective as
of January 1, 2005, to comply with the new Internal Revenue Code Section 409A;

WHEREAS, pursuant to Section 11.2 of the Severance Agreement, the parties affected thereby may
amend the Severance Agreement by a written instrument;

NOW, THEREFORE, BE IT RESOLVED that the Severance Agreement is amended as follows:

1. Section 3 is hereby amended, effective as of January 1, 2005, to include a new subsection
3.2(c), to read as follows:

(c) Effective as of January 1, 2005, to the extent that payment of severance/salary
continuation or other consideration hereunder would be considered “deferred compensation”
under Section 409A of the Internal Revenue Code, as amended (the “Code”), no amounts shall
be payable to the Executive that result from the termination of the Executive’s employment
with the Company prior to the earlier of (i) the Executive’s death or disability (within the
meaning of Section 409A of the Code) or (ii) the date that is six months following the
Executive’s separation from service with the Company (within the meaning of Section 409A of
the Code).

2. Section 4 is hereby amended, effective as of January 1, 2005, to include a new subsection
4.2(c), to read as follows:

(c) Effective as of January 1, 2005, to the extent that payment of severance/salary
continuation or other consideration hereunder would be considered “deferred compensation”
under Section 409A of the Code, no amounts shall be payable to the Executive that result
from the termination of the Executive’s employment with the Company prior to the earlier of
(i) the Executive’s death or disability (within the meaning of Section 409A of the Code) or
(ii) the date that is six months following the Executive’s separation from service with the
Company (within the meaning of Section 409A of the Code).

3. Section 6 of the Severance Agreement is hereby deleted in its entirety and inserted instead
is the following substitute language to read as follows:

	 	6.	 	Tax Indemnity Payments.

(a) Notwithstanding anything in this Severance Agreement or any other agreement between the
Executive and the Company to the contrary, in the event that it shall be determined that the
aggregate payments or distributions by the Company, any purchaser, successor, or assign thereof,
or any of its or their affiliates to or for the benefit of the Executive, whether paid or
payable or distributed or distributable pursuant to the terms hereof, the LTIP or otherwise, but
determined without regard to any additional payments required under this Section 6 (each a
“Payment”), constitute “parachute payments” (as such term is defined under Section 280G of the
Code or any successor provision, and the regulations promulgated thereunder (collectively,
“Section 280G”)) which exceed three times the Executive’s “base amount” (as such term is defined
under Section 280G) and are therefore subject to the excise tax imposed by Section 4999 of the
Code or any successor provision (collectively, “Section 4999”) or any interest or penalties with
respect to such excise tax (the total excise tax, together with any interest and penalties, are
hereinafter collectively referred to as the “Excise Tax”)), then the Executive shall be entitled
to receive an additional payment (a “Gross-Up Payment”) in an amount such that after payment by
the Executive of all taxes (including any interest or penalties imposed with respect to such
taxes), including, without limitation, any federal, state or local income and self-employment
taxes and Excise Tax (and any interest and penalties imposed with respect to any such taxes)
imposed upon the Gross-Up Payment, the Executive retains an amount of the Gross-Up Payment equal
to the Excise Tax imposed upon the Payments.

(b) Subject to the provisions of Section 6(c) hereof, all determinations required to be
made under this Section 6, 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 Company’s public accounting firm (the “Accounting Firm”),
which shall provide detailed supporting calculations both to the Company and the Executive
within fifteen (15) business days of the receipt of notice from the Executive that there has
been a Payment, or such earlier time as is requested by the Company. All fees and expenses of
the Accounting Firm shall be borne solely by the Company. Any Gross-Up Payment, as determined
pursuant to this Section 6, shall be paid by the Company to the Executive within five (5)
business days of the receipt of the Accounting Firm’s determination (it being understood,
however, that the Gross Up Payment may, if permitted by law, be paid directly to the applicable
taxing authorities). If the Accounting Firm determines that no Excise Tax is payable by the
Executive, it shall furnish the Executive with a written report detailing its determination.
Any determination by the Accounting Firm shall be binding upon the Company and the Executive.
As a result of the uncertainty in the application of Section 4999 at the time of the initial
determination by the Accounting Firm hereunder, it is possible that Gross-Up Payments which will
not have been made by the Company should have been made by the Company (an “Underpayment”), or
that Gross-Up Payments will have been made by the Company which should not have been made (an
“Overpayment”), consistent with the calculations required to be made hereunder. In either such
event, the Accounting Firm shall determine the amount of the Underpayment or Overpayment that
has occurred. In the event that the Company exhausts its remedies pursuant to Section 6(c) and
the Executive thereafter is required to make a payment of any Excise Tax, the Accounting Firm
shall determine the amount of the Underpayment that has occurred and any such Underpayment shall
be promptly paid by the Company to or for the benefit of the Executive. In the case of an
Overpayment, the Executive shall, at the direction and expense of the Company, take such steps
as are reasonably necessary (including, if reasonable, the filing of returns and claims for
refund), and otherwise reasonably cooperate with the Company to correct such Overpayment (or, if
retained by the Executive, at his own expense to repay such Overpayment); provided, however,
that (i) in the event of an Overpayment actually paid to the IRS or other relevant taxing
authority, and provided that the Executive uses his best efforts to seek a refund of any such
Overpayment, the Executive shall not be obligated to return to the Company an amount greater
than the net after-tax portion of the Overpayment that he has retained or has recovered as a
refund from the applicable taxing authorities and (ii) this provision shall be interpreted in a
manner consistent with the intent of Section 6(a) hereof to make the Executive whole, on an
after-tax basis, from the application of Section 4999.

(c) The Executive shall notify the Company in writing of any claim by the Internal Revenue
Service that, if successful, would require a payment by the Company, or a change in the amount
of the payment by the Company of, the Gross-Up Payment. Such notification shall be given as
soon as practicable after the Executive is informed in writing of such claim and shall apprise
the Company of the nature of such claim and the date on which such claim is requested to be
paid; provided that the failure to give any notice pursuant to this Section 6(c) shall not
impair the Executive’s rights under this Section 6 except to the extent the Company is
materially prejudiced thereby. The Executive shall not pay such claim prior to the expiration
of the 30-day period following the date on which the Executive gives such notice to the Company
(or such shorter period ending on the date that any payment of taxes with respect to such claim
is due). If the Company notifies the Executive in writing prior to the expiration of such
period that it desires to contest such claim, the Executive shall:

(i) give the Company any information reasonably requested by the
Company relating to such claim,

(ii) take such action in connection with contesting such claim as the
Company 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 Company,

(iii) cooperate with the Company in good faith in order effectively to
contest such claim, and

(iv) permit the Company to participate in any proceedings relating to
such claim; provided, however, that the Company 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 the
Executive harmless, on an after-tax basis, for any Excise Tax or income,
self-employment or other tax (including interest and penalties with respect
thereto) imposed as a result of such representation and payment of costs and
expenses.

Without limitation on the foregoing provisions of this Section 6(c), the Company shall control
all proceedings taken in connection with such contest and, at its sole option, may pursue or
forgo 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 the Executive to
pay the tax claimed and sue for a refund or contest the claim in any permissible manner, and the
Executive agrees 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 Company
shall determine; provided further, that if the Company directs the Executive to pay such claim
and sue for a refund, the Company shall advance the amount of such payment to the Executive on
an interest-free basis and shall indemnify and hold the Executive harmless, on an after-tax
basis, from any Excise Tax or income, self-employment or other tax (including interest or
penalties with respect to any such taxes) 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 the taxable year of the Executive
with respect to which such contested amount is claimed to be due is limited solely to such
contested amount. Furthermore, the Company’s control of the contest shall be limited to issues
with respect to which a Gross-Up Payment would be payable hereunder and the Executive 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.

If, after the receipt by the Executive of any Overpayment or any amount advanced by the
Company pursuant to Section 6(c) hereof, the Executive becomes entitled to receive, and receives,
any refund with respect to such claim, the Executive shall (subject to the Company’s complying with
the requirements of Section 6(c) hereof) promptly pay to the Company the amount of such refund
(together with any interest paid or credited thereon after taxes applicable thereto). If, after
the receipt by the Executive of an amount advanced by the Company pursuant to Section 6(c), a
determination is made that the Executive shall not be entitled to any refund with respect to such
claim and the Company does not notify the Executive in writing of its intent to contest such denial
of refund prior to the expiration of ninety (90) days after such determination, then such advance
shall be forgiven and shall not be required to be repaid and the amount of such advance shall
offset, to the extent thereof, the amount of Gross-Up Payment required to be paid.

IN WITNESS WHEREOF, the parties have executed this Amendment to be effective as of the date
first written above.

CSK AUTO, INC.

By:

Name:

Title:           

EXECUTIVEEX-10.1

Amendment no. 2 To Credit Agreement

This amendment no. 2 to credit agreement (this “Amendment”) is made effective as of
March 1, 2006 (the “Effective Date”), by and between Neose Technologies, Inc. (the
“Borrower”) and Brown Brothers Harriman & Co. (the “Bank”).

Background

Whereas, pursuant to a Credit Agreement dated as of January 30, 2004, by and between
the Bank and the Borrower, as amended by Amendment No. 1 dated March 8, 2005 (the “Credit
Agreement”), the Bank agreed, inter alia, to provide to the Borrower a credit
facility in the maximum aggregate principal amount of $9,000,000 (the “Loan”).

Whereas, the Borrower has requested that the Bank make certain amendments and
modifications to the Credit Agreement, including, without limitation, reducing the liquidity
requirements set forth in the Credit Agreement, and the Lender has agreed to such modifications
under the terms and conditions herein set forth. Any capitalized terms not defined herein shall
have the meaning assigned to them in the Credit Agreement.

Terms

Now, therefore, in consideration of the foregoing premises and for other good and
valuable consideration, the receipt and sufficiency of which are hereby acknowledged, and intending
to be legally bound hereby, the parties hereto agree as follows:

	1.	 	Interest. Section 2.2(d) of the Credit Agreement is hereby amended and restated to read in
its entirety as follows:

(d) Interest. The outstanding principal amount of the Term Loan Note
shall bear interest at Borrower’s option, at: (1) the As-Offered Fixed Rate; or (2)
LIBOR plus 5.00% (provided, however, that if Borrower fails to maintain Liquidity of
at least $18,000,000, based on Bank’s determination (in its sole discretion), then
option (2) shall be LIBOR plus 5.50%). Borrower shall provide Bank with telephonic
notice prior to the initial advance of the Term Loan and, if applicable, not less
than 2 Business Days prior to the last day of each LIBOR Term or As-Offered Fixed
Rate Term, as the case may be, of Borrower’s selection of a rate option and term,
which telephonic notice shall be promptly confirmed in writing. In the absence of
such notice, the interest rate on the Term Loan Note shall continue at the LIBOR
rate as provided herein, or, in the event a LIBOR rate is not available, the Base
Rate plus 2.50% (or, if Borrower’s Liquidity is less than $18,000,000, the
Base Rate plus 3.00%). Interest shall be due and payable to Bank quarterly
on each Interest Payment Date.

	2.	 	Maturity. The following is added as a final sentence to Section 2.2(e) of the Credit
Agreement:

In addition to the foregoing, Borrower may be required to make certain additional
principal payments pursuant to Section 5.12.

	3.	 	Optional Prepayments. The first two sentences of Section 2.2(f) of the Credit Agreement are
hereby amended and restated to read in their entirety as follows:

The principal of the Term Loan Note, with respect to an As-Offered Fixed Rate Loan,
may be prepaid in whole or in part (but if in part only in amounts of $100,000 or
integral multiples of $25,000 in excess thereof) at any time, by Borrower upon three
Business Days’ written notice to Bank, which prepayment shall be subject to the
applicable prepayment premium set forth in subsection (g) below. The principal of
the Term Loan Note, with respect to a LIBOR-based interest rate Loan or a Base
Rate-based interest rate Loan, as the case may be, may be prepaid in whole or in
part (but if in part only in amounts of $100,000 or integral multiples of $25,000 in
excess thereof) at the end of the applicable LIBOR Term or term of a Base Rate-based
interest rate Loan, by Borrower upon three Business Days’ written notice to Bank,
which prepayment shall be subject to the applicable prepayment premium set forth in
subsection (g) below. No partial prepayment shall reduce Borrower’s obligation to
make principal payments next becoming due under the Term Loan Note, but shall reduce
such principal payment obligations in reverse order of due date.

	4.	 	Prepayment Premium. The following subsection (g) is hereby added to Section 2.2 of the
Credit Agreement.

(g) Prepayment Premium. Based on the amount of Loans prepaid, the following
prepayment premium shall apply: (a) if the prepayment occurs on or before June 30, 2006, three
percent (3.0%) of the principal amount prepaid; (b) if the prepayment occurs after June 30, 2006
but on or before December 31, 2006, two percent (2.0%) of the principal amount prepaid; and (c) if
the prepayment occurs after December 31, 2006 but on or before termination of the Credit Agreement,
one percent (1.0%) of the principal amount prepaid. Any such prepayment premium shall be paid by
Borrower to Bank at the time of the applicable prepayment.

	5.	 	Liquidity. Section 5.12 of the Credit Agreement is hereby amended and restated to read in
its entirety as follows:

Section 5.12 Liquidity; Grant of Security Interest.

(a) Within 14 days after the Second Advance, Borrower shall have deposited all
of its Financial Assets, other than $100,000, in account(s) maintained by the Bank
and/or its affiliates. Thereafter, Borrower shall keep and maintain all of its
Financial Assets, other than $100,000, in an account or accounts with the Bank
and/or its affiliates except as may be necessary to fund the Borrower’s business, or
as otherwise consented to in writing by Bank.

(b) If Borrower fails to maintain Liquidity of at least $12,000,000, based on
Bank’s determination (in its sole discretion), Bank may require, in its sole
discretion, that Borrower make a payment to reduce the principal of the Term Loan
Note to no more than $5,000,000.

(c) If Borrower fails to maintain Liquidity of at least $10,000,000, based on
Bank’s determination (in its sole discretion), Bank may require, in its sole
discretion, that Borrower make a payment to reduce the principal of the Term Loan
Note to no more than $4,000,000.

(d) Borrower hereby creates and grants to Bank and its affiliates a security
interest in and lien upon the Liquidity, provided that such security
interest and lien shall attach and become perfected upon the earlier of (i) Bank’s
receipt of notice from a Person that has provided Capital Lease financing to
Borrower, which notice evidences such Person’s commencement of, or intention to
commence, foreclosure or other action against the Borrower or such equipment, or
(ii) commencement by a Person that has provided Capital Lease financing to Borrower
of foreclosure or other action against the Borrower or the financed equipment; and
further provided that such security interest and lien shall be
limited to an amount equal to the outstanding balance of the Loan at the time of
such attachment and perfection, and all other amounts due and payable under this
Agreement. Borrower hereby authorizes Bank to file and record, and agrees and
covenants that it will execute and deliver to Bank, any and all such UCC financing
statements, agreements, documents, instruments and/or certificates necessary for the
perfection of such security interest and lien.

(e) Any payments required pursuant to Sections 5.12(b) or 5.12(c) shall not be
subject to any prepayment premium set forth elsewhere in this Credit Agreement.

	6.	 	Additional Event of Default. Section 6.1(n) is amended to remove the word “or” following the
semi-colon at the end of such section, Section 6.1(o) is amended to replace the period at the
end of such section with “; or” and the following is added as a new Section 6.1(p) to the
Credit Agreement:

(p) Borrower fails to maintain Liquidity of at least $5,000,000, based on
Bank’s determination (in its sole discretion).

	7.	 	Nullification of Additional Collateral Requirement. The Additional Collateral requirement in
Section 5.12 is hereby deleted and all references to “Additional Collateral” in the Credit
Agreement are hereby removed and shall have no further force or effect.

	8.	 	Further Assurances. The Bank and the Borrower agree to take all action, including the
execution of all documents, necessary to amend the Montgomery County Industrial Development
Authority $1,000,000 Variable Rate Revenue Bond (Neose Technologies, Inc. Project) Series 2004
and all documents related thereto (collectively, the “Bond”) in order to:

	 	8.1	 	Increase the interest rate payable on the Bond (retroactive to the Effective
Date) by 200 basis points, with such additional interest to be paid by Borrower with
the next interest payment after execution of such documents; and

	 	8.2	 	Replace all provisions requiring the payment of “breakage costs” upon the
redemption of the Bond with like provisions requiring the payment of the prepayment
premiums set forth in Section 2.2(g) of the Credit Agreement (as defined in the
Agreement).

	9.	 	Miscellaneous.

	 	9.1	 	Representations and Warranties; No Event of Default; Consents; Due
Authorization. Borrower hereby certifies that: (a) all of its representations and
warranties in the Loan Documents are: (i) true and correct as of the date of this
Amendment (except to the extent such representations and warranties specifically relate
to a prior date), (ii) ratified and confirmed without condition as if made anew, and
(iii) incorporated into this Amendment by reference, (b) no Event of Default or event
or condition which, with the passage of time or the giving of notice or both, would
constitute an Event of Default, exists under any Loan Document, (c) no consent,
approval, order or authorization of, or registration or filing with, any third party is
required in connection with the execution, delivery and carrying out of this Amendment
and/or the enforceability hereof, and (d) this Amendment has been duly authorized,
executed and delivered so that it constitutes the legal, valid and binding obligation
of Borrower, enforceable in accordance with its terms.

	 	9.2	 	Obligations Due and Owing. Borrower acknowledges, confirms and agrees
that as of the date of this Amendment the Loan and obligations arising therefrom remain
outstanding and unconditionally owing by Borrower to Bank without defense, set-off,
counterclaim, discount or charge of any kind.

	 	9.3	 	Confirmation of Liens and Right of Set-Off. Borrower hereby
acknowledges, confirms and agrees that (a) any collateral for the Loan, including
liens, security interests, mortgages, and pledges granted by Borrower or third parties
(if applicable), and (b) Bank’s right of set-off under Section 8.2 of the Credit
Agreement, shall continue unimpaired and in full force and effect, and shall cover and
secure the Loan and all of Borrower’s existing and future obligations to Bank, as
modified by this Amendment.

	 	9.4	 	Ratification and Confirmation of Indemnification, Waiver of Jury Trial and
Confession of Judgment Provisions. Borrower hereby ratifies and confirms the
indemnification, waiver of jury trial and confession of judgment provisions contained
in the Loan Documents.

	 	9.5	 	Payment of Bank’s Expenses. Without limiting other payment obligations
of Borrower set forth in the Loan Documents, Borrower agrees to pay all costs and
expenses incurred by Bank in connection with the preparation, negotiation, execution
and delivery of this Amendment and any other agreements, instruments and/or other
documents which may be delivered in connection herewith, including, without limitation,
the fees and expenses of Bank’s counsel, Stradley Ronon Stevens & Young, LLP.

	 	9.6	 	Conditions to Effectiveness of Amendment. This Amendment shall be
effective upon the Bank’s receipt of this Amendment, duly executed by the Borrower and
the Bank.

	 	9.7	 	Inconsistencies. To the extent of any inconsistency between the terms,
conditions and provisions of this Amendment and the terms, conditions and provisions of
the Credit Agreement, the terms, conditions and provisions of this Amendment shall
prevail. All terms, conditions and provisions of the Credit Agreement not inconsistent
herewith shall remain in full force and effect and are hereby ratified and confirmed by
the Borrower and the Bank.

	 	9.8	 	Construction. All references to the Credit Agreement therein shall be
deemed to be a reference to the Credit Agreement as amended by this Amendment.

	 	9.9	 	Binding Effect. This Amendment shall be binding upon and inure to the
benefit of the parties hereto and their respective successors and assigns.

	 	9.10	 	Governing Law. This Amendment shall be governed by and construed in
accordance with the laws of the Commonwealth of Pennsylvania without reference to its
choice of law doctrines.

	 	9.11	 	Headings. The headings of the sections of this Amendment are inserted
for convenience only and shall not be deemed to constitute a part of this Amendment.

	 	9.12	 	Counterparts. This Amendment may be executed in any number of
counterparts with the same effect as if all of the signatures on such counterparts
appeared on one document and each counterpart shall be deemed an original.

[Remainder of page intentionally left blank]

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In witness whereof, the parties hereto by their respective duly authorized officers,
have executed this Amendment as of the Effective Date.

Neose Technologies, Inc.

By: /s/ A. Brian Davis

Name: A. Brian Davis

Title: Senior Vice President and CFO

Brown Brothers Harriman & Co.

	 	 	 
	By: /s/ J. Clark O’Donoghue

	 

	Name:

Title:

	 	J. Clark O’Donoghue

Managing Director
	 
	 	 

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