ION GEOPHYSICAL CORP
<DOCUMENT>
<TYPE>EX-10.33
<SEQUENCE>4
<FILENAME>v105008_ex10-33.htm
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    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="right"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><strong>Exhibit
      10.33</strong></font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center">&#160;</div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center">&#160;</div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><strong>FIRST
      AMENDMENT TO CREDIT AGREEMENT AND WAIVER</strong></font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 36pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">This
      FIRST AMENDMENT TO CREDIT AGREEMENT (this &#8220;</font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><u>Amendment</u></font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">&#8221;)
      dated
      as of February 26, 2008 (the &#8220;</font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><u>Effective
      Date</u></font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">&#8221;)
      is
      executed among </font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><strong>ION
      GEOPHYSICAL CORPORATION</strong></font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">,
      formerly known as Input/Output, Inc., a Delaware corporation (the &#8220;</font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><u>Borrower</u></font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">&#8221;),
      the
      Subsidiaries of the Borrower listed on the signature pages hereto as Guarantors,
      the banks and other financial institutions party hereto (the &#8220;</font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><u>Lenders</u></font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">&#8221;)
      and
</font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><strong>CITIBANK,
      N.A.</strong></font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">,
      as
      Administrative Agent (in such capacity, the &#8220;</font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><u>Administrative
      Agent</u></font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">&#8221;).
      </font></div>
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    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><strong>INTRODUCTION</strong></font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 36pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">A.</font><font id="TAB2" style="COLOR: black; LETTER-SPACING: 27pt">&#160;</font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">WHEREAS,
      the Borrower (under the name &#8220;Input/Output, Inc.&#8221;), the Guarantors, the certain
      financial institutions, as lenders, and the Administrative Agent are parties
      to
      that certain Credit Agreement dated as of March&#160;22,&#160;2007 (as amended
      or modified prior to the date hereof, the &#8220;</font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><u>Credit
      Agreement</u></font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">&#8221;).</font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 36pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">B.</font><font id="TAB2" style="COLOR: black; LETTER-SPACING: 27pt">&#160;</font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">WHEREAS,
      Borrower has now requested that the Administrative Agent and the Lenders modify
      the Credit Agreement and change certain terms thereof, and the Administrative
      Agent and the Lenders have agreed to do so; and</font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 36pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">C.</font><font id="TAB2" style="COLOR: black; LETTER-SPACING: 27pt">&#160;</font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">WHEREAS,
      Borrower, Administrative Agent and the Lenders wish to execute this Amendment
      to
      evidence such agreement;</font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 36pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">THEREFORE,
      the Borrower, the Guarantors, the Lenders and the Administrative Agent hereby
      agree as follows:</font></div>
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    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><strong>ARTICLE
      I<br></strong></font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><strong>AMENDMENT</strong></font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 36pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">SECTION
      1.1</font><font id="TAB2" style="COLOR: black; LETTER-SPACING: 81pt">&#160;</font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Definitions.
      All capitalized terms used herein and not otherwise defined shall have the
      meanings given in the Credit Agreement.</font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 36pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">SECTION
      1.2</font><font id="TAB2" style="COLOR: black; LETTER-SPACING: 81pt">&#160;</font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Amendment
      to Section 1.01. Section 1.01 of the Credit Agreement is hereby amended to
      include the following new definitions and to restate the definitions of &#8220;Fixed
      Charge Coverage Ratio&#8221; and &#8220;Total Funded Debt&#8221; as follows:</font></div>
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    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 36pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">&#8220;</font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><u>Domestic
      Fixed Charge Coverage Ratio</u></font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">&#8221;
means,
      at any date, the ratio of (i) Consolidated EBITDA of the Borrower and its
      Domestic Subsidiaries less the sum of: (A) cash income tax expense of the
      Borrower and its Domestic Subsidiaries, (B) non-financed Consolidated Capital
      Expenditures and (C) capitalized research and development costs of the Borrower
      and its Domestic Subsidiaries; to (ii) the (A) scheduled payments of lease
      payments of the Borrower and its Domestic Subsidiaries, (B) scheduled payments
      of principal of Indebtedness of the Borrower and its Domestic Subsidiaries,
      (C)
      Consolidated Interest Expense of the Borrower and its Domestic Subsidiaries
      actually paid and (D) dividends paid in cash by the Borrower, in each case
      for
      the period of four consecutive fiscal quarters most recently ended on or prior
      to such date for which financial information is available.</font></div>
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    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 36pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">&#8220;</font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><u>Domestic
      Leverage Ratio</u></font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">&#8221;
means,
      at any date, the ratio of (i) Domestic Total Funded Debt as such date to (ii)
      Consolidated EBITDA of the Borrower and its Domestic Subsidiaries for the four
      consecutive fiscal quarters most recently ended on or prior to such date for
      which financial information is available.</font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 36pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">&#8220;</font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><u>Domestic
      Total Funded Debt</u></font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">&#8221;
means
      all funded Consolidated Indebtedness of the Borrower and its Domestic
      Subsidiaries, plus Capital Lease Obligations of the Borrower and its Domestic
      Subsidiaries and issued letters of credit of the Borrower and its Domestic
      Subsidiaries.</font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 36pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">&#8220;</font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><u>Fixed
      Charge Coverage Ratio</u></font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">&#8221;
means,
      at any date, the ratio of (i) Consolidated EBITDA of the Borrower and its
      Subsidiaries less the sum of: (A) cash income tax expense of the Borrower and
      its Subsidiaries, (B) non-financed Consolidated Capital Expenditures and (C)
      capitalized research and development costs of the Borrower and its Subsidiaries;
      to (ii) the (A)&#160;scheduled payments of lease payments of the Borrower and
      its Subsidiaries, (B) scheduled payments of principal of Indebtedness of the
      Borrower and its Subsidiaries, (C) Consolidated Interest Expense of the Borrower
      and its Subsidiaries actually paid and (D) dividends paid by the Borrower in
      cash, in each case for the period of four consecutive fiscal quarters most
      recently ended on or prior to such date for which financial information is
      available.</font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 36pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">&#8220;</font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><u>Total
      Funded Debt</u></font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">&#8221;
means
      all Funded Consolidated Indebtedness of the Borrower and its Subsidiaries,
      plus
      Capital Lease Obligations of the Borrower and its Subsidiaries, plus issued
      letters of credit of the Borrower and its Subsidiaries.</font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 36pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">SECTION
      1.3</font><font id="TAB2" style="COLOR: black; LETTER-SPACING: 81pt">&#160;</font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Amendment
      to Section 6.01. Section 6.01 of the Credit Agreement is hereby amended by
      deleting the word &#8220;and&#8221; at the end of the existing clause (o), replacing the
      period at the end of the existing clause (p) with &#8220;; and&#8221; and </font><font style="DISPLAY: inline; FONT-SIZE: 10pt; COLOR: #000000; FONT-FAMILY: Times New Roman">adding
      the following new section&#160;6.01(q) at the end of Section 6.01</font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">:</font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 36pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">&#8220;(q)
      Indebtedness not to exceed $150,000,000 in the aggregate until the end of the
      Borrower&#8217;s 2008 fiscal year and not to exceed $135,000,000 in the aggregate
      thereafter owed by I/O International,&#160;Ltd., or ION International Sarl, a
      Luxembourg Person, to Borrower or any Domestic Subsidiary in connection with
      licensing agreements with respect to Intellectual Property, which Indebtedness
      may be evidenced by one or more promissory notes</font><font style="DISPLAY: inline; FONT-SIZE: 10pt; COLOR: #000000; FONT-FAMILY: Times New Roman">.
      For the avoidance of doubt, such Indebtedness shall not be a Receivable of
      Borrower or any Domestic Subsidiary.&#8221; </font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 36pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">SECTION
      1.4</font><font id="TAB2" style="COLOR: black; LETTER-SPACING: 81pt">&#160;</font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Amendment
      to Section 6.08. Section 6.08 of the Credit Agreement is hereby amended by
      adding the following new section 6.08(i) to the end of Section
      6.08:</font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 36pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">&#8220;(i)</font><font id="TAB2" style="COLOR: black; LETTER-SPACING: 27pt">&#160;</font><font style="DISPLAY: inline; FONT-SIZE: 10pt; COLOR: #000000; FONT-FAMILY: Times New Roman">transactions
      between or among Affiliates of the Borrower permitted by
      Section&#160;6.04;&#8221;</font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 36pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">SECTION
      1.5</font><font id="TAB2" style="COLOR: black; LETTER-SPACING: 63pt">&#160;</font><font id="TAB2" style="COLOR: black; LETTER-SPACING: 9pt">&#160;</font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Addition
      of Sections 6.17, 6.18 and 6.19. New Sections 6.17, 6.18 and 6.19 are hereby
      added to the Credit Agreement as follows:</font></div>
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    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 72pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">&#8220;Section
      6.17 Minimum Domestic Fixed Charge Coverage Ratio</font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">.&#160;
      The Borrower shall not permit the Domestic Fixed Charge Coverage Ratio to be
      less than 1.50 to 1.0.</font></div>
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    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 72pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Section
      6.18 Maximum Domestic Leverage Ratio&#160; </font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">The
      Borrower shall not permit the Domestic Leverage Ratio to exceed 1.5 to
      1.0.</font></div>
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    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 36pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><font id="TAB1" style="MARGIN-LEFT: 36pt"></font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Section
      6.19 </font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><u>Domestic
      Asset Coverage Ratio</u></font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">.
      The
      Borrower shall not permit the ratio of (i) the book value of Receivables (to
      the
      extent earned by performance), plus cash on hand and Permitted Investments,
      plus
      inventory plus equipment, in each case, of the Borrower and its Domestic
      Subsidiaries to (ii) the aggregate Commitments of the Lenders to be less than
      1.75 to 1.0 at any time.&#8221;</font></div>
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    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 36pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">SECTION
      1.6</font><font id="TAB2" style="COLOR: black; LETTER-SPACING: 63pt">&#160;</font><font id="TAB2" style="COLOR: black; LETTER-SPACING: 9pt">&#160;</font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Waiver.
      For the avoidance of doubt, the Lenders hereby waive any breach prior to the
      date hereof, if any, of (a) Section 5.01(c) of the Credit Agreement caused
      by
      Borrower&#8217;s delivery on February 19, 2008, of the Borrowing Base Certificate and
      related calculations that was due on January 30, 2008; and (b) Section 6.01
      of
      the Credit Agreement caused by the existence prior to the date hereof of any
      Indebtedness (if any) of the type described in Section 1.3 above.</font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><strong>ARTICLE
      II<br></strong></font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><strong>MISCELLANEOUS</strong></font></div>
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    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 36pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">SECTION
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      Borrower and each of the Guarantors is a party, constitute valid and legally
      binding agreements of the Borrower and the Guarantors enforceable in accordance
      with their terms, except as enforceability thereof may be limited by bankruptcy,
      insolvency, fraudulent conveyance, fraudulent transfer, reorganization or
      moratorium or other similar law relating to creditors&#8217; rights and by general
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      (regardless of whether such enforceability is considered in a proceeding, in
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      Credit Agreement are true and correct in all material respects on and as of
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      the Guarantors and Lenders constituting at least the Required
      Lenders.</font></div>
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      reasonable expenses incurred in connection with the negotiation and execution
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      this Amendment. The Borrower and the Guarantors shall furnish to the
      Administrative Agent all such other documents, consents and information relating
      to the Borrower and the Guarantors as the Administrative Agent may reasonably
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      to be amended and modified as herein provided, and except as so amended and
      modified the Credit Agreement shall continue in full force and
      effect.</font></div>
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      Effect. As of the Effective Date of this Amendment, this Amendment shall be
      binding upon and inure to the benefit of the Borrower, the Guarantors,
      Administrative Agent and Lenders and the successors and assigns of the
      Administrative Agent and Lenders. The Borrower and the Guarantors shall not
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    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 36pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">SECTION
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      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 36pt; LINE-HEIGHT: 0; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify">
        <table align="center" bgcolor="#ffffff" border="0" cellpadding="0" cellspacing="0" width="100%">

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              <td width="50%">&#160;</td>
              <td width="1%">&#160;</td>
              <td width="49%">&#160;</td>
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