EXHIBIT 10.43 SECOND AMENDMENT TO CREDIT AGREEMENT ------------------------------------ SECOND AMENDMENT (this "Amendment"), dated as of July 1, 1998, among Cambridge Industries Holdings, Inc. ("Holdings"), Cambridge Industries, Inc. (the "Borrower"), the lenders party to the Credit Agreement referred to below (the "Banks"), and Bankers Trust Company, as Agent (in such capacity, the "Agent"). All capitalized terms used herein and not otherwise defined herein shall have the respective meanings provided such terms in the Credit Agreement referred to below. WITNESSETH: ---------- WHEREAS, Holdings, the Borrower, the Banks and the Agent are parties to a Credit Agreement, dated as of July 10, 1997 (as amended, modified or supplemented through the date hereof, the "Credit Agreement"); and WHEREAS, the parties to the Credit Agreement wish to amend the Credit Agreement as herein provided; NOW, THEREFORE, it is agreed: 1. Section 8.10 of the Credit Agreement is hereby amended by deleting the ratio "1.7:1.0" opposite each of the dates "September 30, 1998" and "December 31, 1998" and inserting the ratio "1.6:1.0" in lieu thereof. 2. Section 8.11 of the Credit Agreement is hereby amended by deleting the ratio "6.0:1.0" opposite each of the dates "September 30, 1998" and "December 31, 1998" and inserting the ratio "6.5:1.0" in lieu thereof. 3. This Amendment is limited as specified and shall not constitute a modification, acceptance or waiver of any other provision of the Credit Agreement or any other Credit Document. 4. In order to induce the Banks to enter into this Amendment, each of Holdings and the Borrower hereby represents and warrants that (x) no Default or Event of Default exists on the Second Amendment Effective Date after giving effect to this Amendment and (y) all of the representations and warranties contained in the Credit Documents shall be true and correct in all material respects on the Second Amendment Effective Date both before and after giving effect to this Amendment with the same effect as though such representations and warranties had been made on and as of the Second Amendment Effective Date (it being understood that any representation or warranty made as of a specific date shall be true and correct in all material respects as of such specific date). 5. This Amendment may be executed in any number of counterparts and by the different parties hereto on separate counterparts, each of which counterparts when executed and delivered shall be an original, but all of which shall together constitute one and the same instrument. A complete set of counterparts shall be lodged with the Borrower and the Agent. 6. This Amendment and the rights and obligations of the parties hereunder shall be construed in accordance with and governed by the law of the State of New York. 7. This Amendment shall become effective as of July 1, 1998 on the date (the "Second Amendment Effective Date") when each of Holdings, the Borrower and the Required Banks shall have signed a counterpart hereof (whether the same or different counterparts) and shall have delivered (including by way of telecopier) the same to the Agent at its Notice Office. The Agent shall promptly notify the Borrower and the Banks in writing of the Second Amendment Effective Date. 8. From and after the Second Amendment Effective Date, all references in the Credit Agreement and each of the other Credit Documents to the Credit Agreement shall be deemed to be references to the Credit Agreement after giving effect to this Amendment. -2- IN WITNESS WHEREOF, each of the parties hereto has caused a counterpart of this Amendment to be duly executed and delivered as of the date first above written. CAMBRIDGE INDUSTRIES HOLDINGS, INC. By /s/ John M. Colaianne ------------------------ Title: CFO CAMBRIDGE INDUSTRIES, INC. By /s/ John M. Colaianne ------------------------ Title: CFO BANKERS TRUST COMPANY, Individually and as Agent By /s/ Mary Kay Coyle ------------------------------ Title: MANAGING DIRECTOR BANKBOSTON, N.A. By /s/ Kimberly F. Harris ------------------------------ Title: VP CITY NATIONAL BANK By [signature illegible] ------------------------------ Title: VP COMERICA BANK By [signature illegible] ------------------------------ Title: VP DRESDNER BANK AG, NEW YORK AND GRAND CAYMAN BRANCHES By /s/ Beverly G. Cason ------------------------------ Title: BEVERLY G. CASON VICE PRESIDENT By /s/ John W. Sweeney ------------------------------ Title: JOHN W. SWEENEY ASSISTANT VICE PRESIDENT DEEPROCK & COMPANY By Eaton Vance Management, as Investment Advisor By /s/ Scott H. Page ------------------------------ Title: SCOTT H. PAGE VICE PRESIDENT SENIOR DEBT PORTFOLIO By: Boston Management and Research as Investment Advisor By /s/ Scott H. Page ------------------------------ Title: SCOTT H. PAGE VICE PRESIDENT FLEET NATIONAL BANK By [signature illegible] ------------------------------ Title: Senior Vice-President INDOSUEZ CAPITAL FUNDING III, LIMITED By: Indosuez Capital Luxembourg, as Collateral Manager By /s/ Francoise Berthelot ------------------------------ Title: FRANCOISE BERTHELOT AUTHORIZED SIGNATORY INDOSUEZ CAPITAL FUNDING IIA, LIMITED By: Indosuez Capital Luxembourg, as Collateral Manager By /s/ Francoise Berthelot ------------------------------ Title: PILGRIM AMERICA PRIME RATE TRUST By /s/ Robert L. Wilson ------------------------------ Title: Robert L. Wilson Vice-President SANWA BUSINESS CREDIT CORPORATION By /s/ Stanley Kaminski ------------------------------ Title: Stanley Kaminski Vice-President TRANSAMERICA BUSINESS CREDIT CORPORATION By /s/ Perry Vavoules ------------------------------ Title: Perry Vavoules Senior Vice-President VAN KAMPEN AMERICAN CAPITAL PRIME RATE INCOME TRUST By /s/ Jeffrey W. Maillet -------------------------------- Title: JEFFREY W. MAILLET SR. VICE PRES. & DIRECTOR COMPAGNIE FINANCIERE DE CIC ET DE L'UNION EUROPEENNE By /s/ Sean Mounier ------------------------------ Title: First Vice President By: /s/ Brian O'Leary ---------------------------- Title: Vice President GENERAL ELECTRIC CAPITAL CORPORATION By /s/ Murray Stegelmann --------------------------------- Title: Murray Stegelmann Duly Authorized Signatory OCTAGON LOAN TRUST By Octagon Credit Incestors, its manager /s/ Richard W. Stewart --------------------------- Title: RICHARD W. STEWART MANAGING DIRECTOR BANK POLSKA KASA OPIEKI S.A., PEKAO S.A. GROUP, NEW YORK BRANCH By [signature illegible] -------------------------------- Title: Vice President DLJ CAPITAL FUNDING, INC. By [signature illegible] -------------------------------- Title: ML CLO XII PILGRIM AMERICA (CAYMAN) LTD. By: Pilgrim America Investments, Inc. as its Investment Manager By /s/ Robert L. Wilson -------------------------------- Name: Robert L. Wilson Title: Vice President ML CLO XV PILGRIM AMERICA (CAYMAN) LTD. By: Pilgrim America Investments, Inc. as its Investment Manager By /s/ Robert L. Wilson -------------------------------- Name: Robert L. Wilson Title: Vice President PAMCO CAYMAN LTD (PROTECTIVE) By: Highland Capital Management, L.P. as Collateral Manager By /s/ James Dondero --------------------------------------- Name: James Dondero, CFA, CPA Title: President Highland Capital Management L.P. CERES FINANCE LTD. By /s/ John H. Cullinane -------------------------------- Name: John H. Cullinane Title: Director THIRD WAIVER AND AMENDMENT THIRD WAIVER AND AMENDMENT (this "Waiver"), dated as of December 31, 1998, among CAMBRIDGE INDUSTRIES HOLDINGS, INC. ("Holdings"), CAMBRIDGE INDUSTRIES, INC., (the "Borrower"), the lenders from time to time party to the Credit Agreement described below (each, a "Bank" and collectively, the "Banks"), and BANKERS TRUST COMPANY, as Agent (the "Agent"). All capitalized terms used herein and not otherwise defined herein shall have the respective meanings provided such terms in the Credit Agreement. WITNESSETH: WHEREAS, Holdings, the Borrower, the Banks and the Agent are party to a Credit Agreement, dated as of July 10, 1997 (as amended, modified and supplemented prior to the date hereof, the "Credit Agreement"); and WHEREAS, Holdings, the Borrower, the Banks and the Agent intend to enter into an amendment to the Credit Agreement amending, on or prior to March 15, 1999, certain provisions of the Credit Agreement, including but not limited to, Sections 8.09, Section 8.10 and Section 8.11 of the Credit Agreement (the "Permanent Amendment", and the date of effectiveness of the Permanent Amendment, the "Permanent Amendment Effective Date"); WHEREAS, the Borrower has requested that the Banks provide the Waiver provided for herein and the Banks have agreed to provide such Waiver on the terms and conditions set forth herein; NOW, THEREFORE, it is agreed: 1. On the Permanent Amendment Effective Date the definition of "Applicable Base Rate Margin" in Section 10 of the Credit Agreement shall retroactive to January 1, 1999, be amended by (i) deleting the percentage "1.50%" appearing therein and inserting "2.00%" in lieu thereof and (ii) deleting the percentage "2.00%" appearing therein and inserting "2.50%" in lieu thereof provided however, that interest on Base Rate Loans that is retroactively amended shall be payable on the later of (x) the Permanent Amendment Effective Date and (y) the date such interest is otherwise due. 2. On the Permanent Amendment Effective Date the definition of "Applicable Eurodollar Margin" in Section 10 of the Credit Agreement shall retroactive to January 1, 1999, be amended by (i) deleting the percentage "2.50%" appearing therein and inserting "3.00%" in lieu thereof and (ii) deleting the percentage "3.00%" appearing therein and inserting "3.50%" in lieu thereof. 1 3. On the Permanent Amendment Effective Date the definition of "Interest Reduction Discount" shall retroactive to January 1, 1999, be amended by deleting such definition in its entirety and inserting the following new definition in lieu thereof. "Interest Reduction Discount" shall mean initially zero, provided that from and after any Start Date to and including the corresponding End Date, the Interest Reduction Discount shall be (I) in the case of A Term Loans and Revolving Loans, the respective percentage per annum set forth in clause (A), (B), (C), (D), (E), or (F) below if, but only if, as of the Test Date for such Start Date the applicable condition set forth in clause (A), (B), (C), (D), (E), or (F) below, as the case may be, is met: (A) .250% if, but only if, the Leverage Ratio on such Test Date is less than 5.50:1.00 but greater than or equal to 5.00:1.00; or (B) .500% if, but only if, the Leverage Ratio on such Test Date is less than 5.00:1.00 but greater than or equal to 4.50:1.00; or (C) .750% if, but only if, the Leverage Ratio on such Test Date is less than 4.50:1.00 but greater than or equal to 4.00:1.00; or (D) 1.00% if, but only if, the Leverage Ratio on such Test Date is less than 4.00:1.00 but greater than or equal to 3.50:1.00; or (E) 1.25% if, but only if, the Leverage Ratio on such Test Date is less than 3.50:1.00 but greater than or equal to 3.00:1.00; or (F) 1.50% if, but only if, the Leverage Ratio on such Test Date is less than 3.00:1.00; and (II) in the case of B Term Loans, the respective percentage per annum set forth in clause (A) or (B) below if, but only if, as of the Test Date for such Start Date the applicable condition set forth in clause (A) or (B) below, as the case may be, is met: (A) .250% if, but only if, the Leverage Ratio on such Test Date is less than 5.50:1.00 but greater than or equal to 5.00:1.00; or (B) .500% if, but only if, the Leverage Ratio on such Test Date is less than 5.00:1.00. Notwithstanding anything to the contrary contained above in this definition, the Interest Reduction Discount shall be zero at any time when an Event of Default shall exist. 4. Effective for any Test Period or any fiscal quarter ending on December 31, 1998 through and including March 15, 1999 (the "Waiver Termination Date"), the Banks hereby waive compliance with the provisions of Section 8.09, Section 8.10 and Section 8.11 of the Credit Agreement. This Waiver shall be effective only for the period from December 31, 1998 to and 2 including the Waiver Termination Date (the "Waiver Period") and shall be of no force or effect at any other time. 5. In order to induce the Banks to enter into this Waiver, the Borrower agrees that at all times from the Waiver Effective Date (as defined below) to and including the Waiver Termination Date, the sum of (i) the aggregate outstanding principal amount of Revolving Loans and Swingline Loans and (ii) the Letter of Credit Outstandings under the Credit Agreement shall not exceed $45,000,000. 6. In order to induce the Banks to enter into this Waiver, each of Holdings and the borrower hereby represents and warrants that (i) no Default or Event of Default exists as of the Waiver Effective Date (as defined below) after giving effect to this Waiver and (ii) on the Waiver Effective Date, both before and after giving effect to this Waiver, all representations and warranties contained in the Credit Agreement and in the other Credit Documents are true and correct in all material respects. 7. This Waiver shall become effective on the date (the "Waiver Effective Date") when (i) the Required Banks, Holdings and the Borrower shall have signed a counterpart hereof (whether the same or different counterparts) and shall have delivered (including by way of facsimile transmission) the same to the Agent at its Notice Office and (ii) each Bank which shall have signed and delivered a copy of this Waiver prior to the close of business on January 13, 1999, shall have received a waiver fee equal to 1/8 of 1% on the Revolving Loan Commitment and/or outstanding Term Loans of such Bank as in effect on such date. 8. This Waiver is limited as specified and shall not constitute a modification, acceptance or waiver of any other provision of the Credit Agreement or any other Credit Document. 9. This Waiver may be executed in any number of counterparts and by the different parties hereto on separate counterparts, each of which counterparts when executed and delivered shall be an original, but all of which shall together constitute one and the same instrument. A complete set of counterparts shall be lodged with the Borrower and the Agent. 10. At all times during the Waiver Period, all references in the Credit Agreement and each of the Credit Documents to the Credit Agreement shall be deemend to be references to such Credit Agreement after giving effect to this Waiver. 11. THIS WAIVER AND THE RIGHTS AND OBLIGATIONS OF THE PARTIES HEREUNDER SHALL BE GOVERNED BY AND CONSTRUED IN THE ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK. *** 3 IN WITNESS WHEREOF, each of the parties hereto has caused a counterpart of this Waiver to be duly executed and delivered as of the date hereof. CAMBRIDGE INDUSTRIES HOLDINGS, INC. By /s/ John Colaianne ------------------------------ Name: John Colaianne Title: CFO CAMBRIDGE INDUSTRIES, INC. INC. By /s/ John Colaianne ------------------------------ Name: John Colaianne Title: CFO 4 BANKERS TRUST COMPANY, Individually and as Agent By /s/ Mary Kay Coyle ------------------------------ Name: MARY KAY COYLE Title: Managing Director 5 BANKBOSTON, N.A. By /s/ Kimberly F. Harris ------------------------------ Title: VP 6 CITY NATIONAL BANK By /s/ Lalward Vassell ------------------------------ Title: V.P. 7 COMERICA BANK By Mark Reifel ------------------------------ Title: V.P. 8 CREDIT LYONNAIS CHICAGO BRANCH By /s/ Lee E. Greve ------------------------------ Title: LEE E. GREVE FIRST VICE PRESIDENT 9 CYPRESS TREE INVESTMENT MANAGEMENT COMPANY, INC. As: Attorney-in-Fact and on Behalf of First Allmerica Financial Life Insurance Company By /s/ Catherine C. McDermott ------------------------------ Title: CATHERINE C. McDERMOTT PRINCIPAL 10 DRESDNER BANK AG, NEW YORK AND GRAND CAYMAN BRANCHES By /s/ Christopher E. Sarisky ------------------------------ Title: CHRISTOPHER E. SARISKY Assistant Vice President By /s/ John W. Sweeney ------------------------------ Title: JOHN W. SWEENEY ASSISTANT VICE PRESIDENT 11 DEEPROCK & COMPANY By: Eaton Vance Management, as Investment Advisor By /s/ Scott H. Page ------------------------------ Title: SCOTT H. PAGE VICE PRESIDENT 12 SENIOR DEBT PORTFOLIO By Boston Management and Research, as Investment Advisor By /s/ Scott H. Page ------------------------------ Title: SCOTT H. PAGE VICE PRESIDENT 13 FLEET NATIONAL BANK By George O. Januga ------------------------------ Title: Vice President 14 HELLER FINANCIAL, INC. By Craig Gallehugh ------------------------------ Title: Vice President 15 INDOSUEZ CAPITAL FUNDING III, LIMITED By Indosuez Capital Luxembourg, as Collateral Manaager By /s/ Francoise Berthelot ------------------------------ Title: FRANCOISE BERTHELOT AUTHORIZED SIGNATORY 16 INDOSUEZ CAPITAL FUNDING IIA, LIMITED By Indosuez Capital Luxembourg, as Collateral Manaager By /s/ Francoise Berthelot ------------------------------ Title: FRANCOISE BERTHELOT AUTHORIZED SIGNATORY 17 PILGRIM AMERICA PRIME RATE TRUST By Pilgrim Investments, Inc. as its Investment Manager By /s/ Robert L. Wilson ------------------------------ Title: Robert L. Wilson Vice President 18 SANWA BUSINESS CREDIT CORPORATION By: No Signature Received -------------------------- Title: 19 TRANSAMERICA BUSINESS CREDIT CORPORATION By /s/ Perry Vavoules ------------------------------ Title: Perry Vavoules Senior Vice President 20 VAN KAMPEN PRIME RATE INCOME TRUST By /s/ Jeffrey W. Marlet ------------------------------ Title: JEFFREY W. MARLET Senior Vice President & Director 21 KZH PAMCO LLC By /s/ Michael M. Wong ------------------------------ Title: Michael M. Wong Authorized Agent 22 COMPAGNIE FINANCIERE DE CIC ET DE L'UNION EUROPEENNE By /s/ Sean Mounier ------------------------------ Title: First Vice President By /s/ Brian O'Leary ------------------------------ Title: Vice President 23 GENERAL ELECTRIC CAPITAL CORPORATION By /s/ Michael McGonigle ------------------------------ Title: MICHAEL McGONIGLE DULY AUTHORIZED SIGNATORY 24 BANK POLSAK KASA OPIEKI S.A., PEKAO S.A. GROUP, NEW YORK BRANCH By Harvey Winter ------------------------------ Title: Vice President 25 FIRST UNION NATIONAL BANK By: No Signature Received -------------------------- Title: 26 ML CLO XII PILGRIM AMERICA (CAYMAN) LTD. By: Pilgrim Investments, Inc. as its Investment Manager By /s/ Robert L. Wilson ------------------------------ Name: Robert L. Wilson Title: Vice President 27 ML CLO XV PILGRIM AMERICA (CAYMAN) LTD. By: Pilgrim Investments, Inc. as its Investment Manager By /s/ Robert L. Wilson ------------------------------ Name: Robert L. Wilson Title: Vice President 28 PAMCO CAYMAN LTD By: Highland Capital Management, L.P. as Collateral Manager By [signature illegible] ------------------------------ Name: Title: 29 TORONTO DOMINION (TEXAS), INC. By Sonja R. Jordan ------------------------------ Name: SONJA R. JORDAN Title: VICE PRESIDENT 30 CERES FINANCE LTD. By [signature illegible] ------------------------------ Name: Title: 31 EATON VANCE SENIOR INCOME TRUST BY: EATON VANCE MANAGEMENT AS INVESTMENT ADVISOR By /s/ SCOTT H. PAGE ------------------------------ Name: SCOTT H. PAGE Title: VICE PRESIDENT 32 CYPRESS TREE INVESTMENT PARTNERS I, LTD. By: Cypress Tree Investment Company, Inc., as Portfolio Manager By /s/ Philip C. Robbins ------------------------------ Title: PHILIP C. ROBBINS PRINCIPAL 33 FOURTH WAIVER AND AMENDMENT --------------------------- FOURTH WAIVER AND AMENDMENT (this "Amendment"), dated as of February 23, 1999, among CAMBRIDGE INDUSTRIES HOLDINGS, INC. ("Holdings"), CAMBRIDGE INDUSTRIES, INC., (the "Borrower"), the lenders from time to time party to the Credit Agreement described below (each, a "Bank" and collectively, the "Banks"), and BANKERS TRUST COMPANY, as Agent (the "Agent"). All capitalized terms used herein and not otherwise defined herein shall have the respective meanings provided such terms in the Credit Agreement. WITNESSETH: ---------- WHEREAS, Holdings, the Borrower, the Banks and the Agent are party to a Credit Agreement, dated as of July 10, 1997 (as amended, modified and supplemented prior to the date hereof, the "Credit Agreement"); WHEREAS, Holdings, the Borrower, the Banks and the Agent entered into the Third Waiver and Amendment to the Credit Agreement ("Third Waiver") dated as of December 31, 1998, which Third Waiver contemplated, among other things, the entering into of a Permanent Amendment (as defined in the Third Waiver); WHEREAS, this Amendment is the Permanent Amendment, although certain terms and provisions of this Amendment differ from those contemplated by the Third Waiver, and the parties hereto intend that as to any such differences the terms and provisions of this amendment shall govern; WHEREAS, the parties hereto wish to amend the Credit Agreement as provided herein; NOW, THEREFORE, it is agreed; 1. Sections 1, 2, and 3 of the Third Waiver are hereby deleted in their entirety and replaced by Sections 2, 3 and 7 of this Amendment. 2. The definition of "Applicable Base Rate Margin" in Section 10 of the Credit Agreement is hereby amended (retroactively to January 1, 1999) by (i) deleting the percentage "1.50%" appearing therein and inserting "2.50% in lieu thereof and (ii) deleting the percentage "2.00%" appearing therein and inserting "3.00%" in lieu thereof (it being understood and agreed that to the extent any interest payments on Base Rate Loans have been made between January 1, 1999 and the Amendment Effective Date, the Borrower will make a supplemental interest payment to the Banks on the Amendment Effective Date to give retroactive effect to the increase in interest rates effected by this Agreement). 1 3. The definition of "Applicable Eurodollar Margin" in Section 10 of the Credit Agreement is hereby amended (retroactively to January 1, 1999) by (i) deleting the percentage "2.50%" appearing therein and inserting "3.50%" in lieu thereof and (ii) deleting the percentage "3.00%" appearing therein and inserting "4.00%" in lieu thereof (it being understood and agreed that to the extent any interest payments on Eurodollar Loans have been made between January 1, 1999 and the Amendment Effective Date, the Borrower will make a supplemental interest payment to the Banks on the Amendment Effective Date to give retroactive effect to the increase in interest rates effected by this Amendment). 4. Section 8.09(a) of the Credit Agreement is hereby amended by deleting the portion of the table set forth therein from and including March 31, 1999 to and including March 31, 2000 (together with the amounts set forth opposite such dates), and by inserting in lieu thereof the following: "March 31, 1999 $ 40,000,000 June 30, 1999 $ 39,500,000 September 30, 1999 $ 42,000,000 December 31, 1999 $ 53,000,000 March 31, 2000 $ 60,000,000" 5. Section 8.10 of the Credit Agreement is hereby amended by deleting the portion of the table set forth therein from and including March 31, 1999 to and including March 31, 2000 (together with the ratios set forth opposite such dates), and by inserting in lieu thereof the following: "March 31, 1999 1.3:1.0 June 30, 1999 1.3:1.0 September 30, 1999 1.4:1.0 December 31, 1999 1.8:1.0 March 31, 2000 2.0:1.0" 6. Section 8.11 of the Credit Agreement is hereby amended by deleting the portion of the table set forth therein from and including March 31, 1999 to and including March 31, 2000 (together with the ratios set forth opposite such dates), and by inserting in lieu thereof the following: "March 31, 1999 8.6:1.0 June 30, 1999 8.6:1.0 September 30, 1999 8.1:1.0 December 31, 2000 6.5:1.0 March 31, 2000 5.7:1.0" 2 7. The definition of "Interest Reduction Discount" appearing in Section 10 of the Credit Agreement is hereby amended (retroactive to January 1, 1999) by deleting such definition in its entirety and inserting the following new definition in lieu thereof: "Interest Reduction Discount" shall mean initially zero, provided that from and after any Start Date to and including the corresponding End Date, the Interest Reduction Discount shall be (I) in the case of A Term Loans and Revolving Loans, the respective percentage per annum set forth in clause (A), (B), (C), (D), (E), (F), or (G) below if, but only if, as of the Test Date for such Start Date the applicable condition set forth in clause (A), (B), (C), (D), (E), (F), or (G) below, as the case may be, is met: (A) .500% if, but only if, the Leverage Ratio on such Test Date is less than 6:00:1.00 but greater than or equal to 5:50:1.00; or (B) .750% if, but only if, the Leverage Ratio on such Test Date is less than 5.50:1.00 but greater than or equal to 5.00:1.00; or (C) .1.00% if, but only if, the Leverage Ratio on such Test Date is less than 5.00:1.00 but greater than or equal to 4.50:1.00; or (D) 1.25% if, but only if, the Leverage Ratio on such Test Date is less than 4.50:1.00 but greater than or equal to 4.00:1.00; or (E) 1.50% if, but only if, the Leverage Ratio on such Test Date is less than 4.00:1.00 but greater than or equal to 3.50:1.00; or (F) 1.75% if, but only if, the Leverage Ratio on such Test Date is less than 3.50:1.00 but greater than or equal to 3.00:1.00; or (G) 2.00% if, but only if, the Leverage Ratio on such Test Date is less than 3.00:1.00; and (II) in the case of B Term Loans, the respective percentage per annum set forth in clause (A), (B) or (C) below if, but only if, as of the Test Date for such Start Date the applicable condition set forth in clause (A), (B) or (C) below, as the case may be, is met: (A) .500% if, but only if, the Leverage Ratio on such Test Date is less than 6:00:1.00 but greater than or equal to 5:50:1:00; or (B) .750% if, but only if, the Leverage Ratio on such Test Date is less than 5.50:1.00 but greater than or equal to 5.00:1.00; or (C) 1,00% if, but only if, the Leverage Ratio on such Test Date is less than 5.00:1.00. Notwithstanding anything to the contrary contained above in this definition, the Interest Reduction Discount shall be zero at any time when an Event of Default shall exist. 3 8. Effective for any Test Period or any fiscal quarter ending on (i) December 31, 1998, the Banks hereby permanently waive compliance with the provisions of Section 8.09(a), Section 8.10 and section 8.11 of the Credit Agreement and (ii) December 31, 1998 through and including March 31, 2000, the Banks hereby waive compliance with the provisions of Section 8.09(b). 9. In order to induce the Banks to enter into this Amendment, the Borrower agrees that from the Amendment Effective Date (as defined below) to and including March 31, 2000, the aggregate outstanding principal amount of Revolving Loans and Swingline Loans shall not (x) at any time exceed $65,000,000 and (y) on the last day of any month exceed $50,000,000. The Borrower further agrees that at all times from the Amendment Effective Date to and including March 31, 2000, the Letter of Credit Outstandings under the Credit Agreement shall not exceed $5,300,000. 10. Notwithstanding anything to the contrary contained in Sections 4.01, 4.02 (A)(b)(i) and 4.02(A)(b)(ii) of the Credit Agreement, on the Amendment Effective Date the Borrower shall prepay $12,500,000 of the principal amount of A Term Loans (i.e. the principal amount of A Term Loans required as Scheduled A Repayments for the periods from and including March, 1999 to and including December, 1999) and (y) $1,350,000 of the principal amount of B Term Loans (i.e. the principal amount of B Term Loans required as Scheduled B Repayments for the periods from and including March, 1999 to and including December, 1999), it being understood and agreed that such prepayments shall reduce the remaining Scheduled Repayments in direct order of maturity. 11. In order to induce the Banks to enter into this Amendment, each of Holdings and the Borrower hereby represents and warrants that (i) no Default or Event of Default exists as of the Amendment Effective date (as defined below) after giving effect to this Amendment and (ii) on the Amendment Effective Date, both before and after giving effect to this Amendment, all representations and warranties contained in the Credit Agreement and in the other Credit Documents are true and correct in all material respects. 12. This Amendment shall become effective on the date (the "Amendment Effective Date") when (i) the Required Banks, Holdings and the Borrower shall have signed a counterpart hereof (whether the same or different counterparts) and shall have delivered (including by way of facsimile transmission) the same to the Agent at its Notice Office, (ii) the Borrower shall have made the prepayments described in Section 10 of this Amendment and (iii) each Bank which shall have signed and delivered a copy of this amendment prior to the close of business on March 10, 1999, shall have received an amendment fee equal to (x) 1/2 of 1% on the Revolving Loan Commitment and outstanding A Term Loans of such Bank as in effect on such date and (y) 3/8 of 1% on the outstanding B Term Loans of such Bank as in effect on such date. 13. This Amendment is limited as specified and shall not constitute a modification, acceptance or waiver of any other provision of the Credit Agreement or any other Credit Document. 4 14. This Amendment may be executed in any number of counterparts and by the different parties hereto on separate counterparts, each of which counterparts when executed and delivered shall be an original, but all of which shall together constitute one and the same instrument. A complete set of counterparts shall be lodged with the Borrower and the Agent. 15. From and after the Amendment Effective Date, all references in the Credit Agreement and each of the Credit Documents to the Credit Agreement shall be deemed to be references to such Credit Agreement after giving effect to this Amendment. 16. THIS AMENDMENT AND THE RIGHTS AND OBLIGATIONS OF THE PARTIES HEREUNDER SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK * * * 5 IN WITNESS WHEREOF, each of the parties hereto has caused a counterpart of this Waiver to be duly executed and delivered as of the date hereof. CAMBRIDGE INDUSTRIES HOLDINGS, INC. By /s/ John M. Colaianne ------------------------ Name: John M. Colaianne Title: CFO CAMBRIDGE INDUSTRIES, INC. By /s/ John M. Colaianne ------------------------ Name: John M. Colaianne Title: CFO 6 BANKERS TRUST COMPANY Individually and as Agent By /s/ Mary Kay Coyle ------------------------------ Name: MARY KAY COYLE Title: MANAGING DIRECTOR 7 BANKBOSTON N.A. By /s/ Kimberly F. Harris ------------------------------ Title: VP 8 CITY NATIONAL BANK By Edward Vassallo ------------------------------ Title: VP 9 DRESDNER BANK AG, NEW YORK AND GRAND CAYMAN BRANCHES By /s/ John W. Sweeney ------------------------------ Name: JOHN W. SWEENEY Title: ASSISTANT VICE PRESIDENT By /s/ Beverly G. Cason ------------------------------ Name: BEVERLY G. CASON Title: VICE PRESIDENT 13 DEEPROCK & COMPANY By Eaton Vance Management, as Investment Advisor By /s/ Scott H. Page ------------------------------ Title: SCOTT H. PAGE VICE PRESIDENT 14 SENIOR DEBT PORTFOLIO By: Boston Management and Research as Investment Advisor By /s/ Scott H. Page ------------------------------ Title: SCOTT H. PAGE VICE PRESIDENT FLEET NATIONAL BANK By [signature illegible] ------------------------------ Title: Vice-President 16 HELLER FINANCIAL, INC. By [sig illegible] ------------------------------ Title: Vice President 17 INDOSUEZ CAPITAL FUNDING III, LIMITED By: Indosuez Capital as Portfolio Advisor By [signature illegible] ------------------------------ Title: Vice President 18 INDOSUEZ CAPITAL FUNDING IIA, LIMITED By: Indosuez Capital as Portfolio Advisor By [signature illegible] ------------------------------ Title: Vice President 19 EATON VANCE SENIOR INCOME TRUST BY: Eaton Vance Management as Investment Advisor By /s/ SCOTT H. PAGE ------------------------------ Name: SCOTT H. PAGE Title: VICE PRESIDENT FLEET BUSINESS CREDIT CORPORATION F/K/A SANWA BUSINESS CREDIT CORPORATION By Peter Levy ------------------------------ Title: Sr. V.P. 21 TRANSAMERICA BUSINESS CREDIT CORPORATION By /s/ Perry Vavoules ------------------------------ Title: Perry Vavoules Senior Vice-President 22 VAN KAMPEN PRIME RATE INCOME TRUST By /s/ Jeffrey W. Maillet -------------------------------- Title: JEFFREY W. MAILLET Senior Vice President & Director 23 KZH-PAMCO LLC By /s/ Shari Finkelstein -------------------------------- Title: SHARI FINKELSTEIN Authorized Agent 24 COMPAGNIE FINANCIERE DE CIC ET DE L'UNION EUROPEENNE By /s/ Sean Mounier ------------------------------ Title: First Vice President By: /s/ Anthony Rock ---------------------------- Title: Vice President 25 GENERAL ELECTRIC CAPITAL CORPORATION By William Richardson ---------------------------- Title: Duly Authorized Signatory 26 BANK POLSKA KASA OPIEKI S.A. PEKAO S.A. GROUP, NEW YORK BRANCH By [signature illegible] -------------------------------- Title: Vice President 27 ML CLO XII PILGRIM AMERICA (CAYMAN) LTD. By: Pilgrim Investments, Inc. as its Investment Manager By /s/ Robert L. Wilson -------------------------------- Name: Robert L. Wilson Title: Vice President 29 ML CLO XV PILGRIM AMERICA (CAYMAN) LTD. By: Pilgrim Investments, Inc. as its investment manager By /s/ Robert L. Wilson --------------------------------------- Name: Robert L. Wilson Title: Vice President 30 PAMCO CAYMAN LTD. By: Highland Capital Management, L.P. as Collateral Manager By /s/ James Dondero -------------------------------- Name: James Dondero, CFA, CPA Title: President Highland Capital Management LP. 31 CERES FINANCE LTD. By /s/ John H. Cullinane -------------------------------- Name: John H. Cullinane Title: Director 33 BLACK DIAMOND CLO 1998-1 LTD. By /s/ John H. Cullinane ------------------------ Name: John H. Cullinane Title: Director 36