EXHIBIT 4.2 	 	 	 Indenture of Trust 	 	 by and between 	 	 Grapevine Industrial Development Corporation 		 	 and 		 	 Bank One, Texas, NA, as Trustee 		 	 Dated as of April 1, 1994 		 	 $8,000,000 Industrial Development Revenue Bonds, 	 Series 1994 (Trencor Jetco, Inc. Project) 	 	 	 INDENTURE OF TRUST 	 	 	This Indenture of Trust is made and entered into as of April 1, 1994, by and between the Grapevine Industrial Development Corporation (the Issuer), and Bank One, Texas, NA, a national banking association having its corporate trust office in Fort Worth, Texas (the Trustee), as trustee. 	 	 Witnesseth: 	 	 	Whereas, the Issuer is a constituted authority and instrumentality acting on behalf of the City of Grapevine, Texas (the "Unit"), organized and existing under the Development Corporation Act of 1979, Article 5190.6, TEX. REV. CIV. STAT. ann, as amended (the "Act"), and is authorized under the Act to issue and sell its bonds and to lend the proceeds thereof to assist the Unit in its economic development and to carry out the public purposes of the Act, including the financing of manufacturing and industrial facilities located within the corporate limits of the Unit; and 	 	Whereas, Trencor Jetco, Inc. (the "Company"), a Texas corporation and a wholly owned subsidiary of Astec Industries, Inc., a Tennessee corporation (the "Guarantor"), has requested financial assistance from the Issuer to finance a project (the "Project"); and 	 	Whereas, the Issuer is authorized by the Act to finance the Project for the Company by issuing its bonds and loaning the proceeds thereof to the Company, and, to that end, the Issuer has adopted a resolution (the "Bond Resolution") duly authorizing and directing the issuance, sale, and delivery of its industrial development revenue bonds, to be known generally as Grapevine Industrial Development Corporation Industrial Development Revenue Bonds, Series 1994 (Trencor Jetco, Inc. Project) (the "Series 1994 Bonds"), to be issued as fully registered bonds (all bonds, including the Series 1994 Bonds, at any time outstanding under terms of this Indenture, hereinafter being called the "Bonds") and to secure payment of the principal thereof and of the interest and premium, if any, thereon and the performance and observance of the covenants and conditions herein contained, the Issuer has authorized the execution and delivery of this Indenture; and 	 	Whereas, the Issuer will loan the proceeds of the Series 1994 Bonds to the Company by entering into a Loan Agreement dated as of April 1, 1994 (the "Agreement"), between the Issuer and the Company; and 	 	Whereas, pursuant to the Agreement, the Company has agreed, among other things, to pay to or for the account of the Issuer an amount equal to the principal of and redemption premium and interest on the Series 1994 Bonds, as the same become due, all as set forth in the Agreement; and 	 	Whereas, all things necessary to make the Bonds, when authenticated by the Trustee and issued as in this Indenture provided, the valid, binding, and legal obligations of the Issuer according to the import thereof, and to constitute this Indenture a valid assignment and pledge of the security pledged hereunder, have been done and performed, and the creation, execution, and delivery of this Indenture of Trust, and the creation, execution, and issuance of the Bonds, subject to the terms hereof, have in all respects been duly authorized; 	 	Now, Therefore, This Indenture of Trust Witnesseth: 	 	 Granting Clause 	 	To secure the timely payment of the principal of premium if any, and interest on the Bonds according to their tenor and effect and to secure the performance and observance by the Issuer of all of the covenants set forth herein and in the Bonds, the Issuer hereby assigns to the Trustee and grants to the Trustee a security interest in all right, title, and interest of the Issuer in and to (a) the Agreement, including the current and continuing right to claim, collect, receive, and give receipts for all amounts payable by or receivable from the Company under the Agreement, to bring actions and proceedings under the Agreement or for the enforcement of the Agreement and to do all things that the Issuer is entitled to under the Agreement, but excluding the Unassigned Rights, and (b) all moneys and securities held from time to time by the Trustee under this Indenture as provided in this Indenture (other than moneys and securities held in the Purchase Fund or the Rebate Fund), all for the equal and proportionate benefit of all owners of the Bonds without priority or distinction as to lien or otherwise of any Bonds over any other Bonds. 	 	To secure the obligation of the Company to reimburse to the Bank amounts owed under the Reimbursement Agreement, the Issuer assigns and grants to the Trustee for the benefit of the Bank a security interest in all right, title, and interest of the Issuer in and to the moneys held in the Bond Proceeds Fund until such moneys are applied for their intended purpose as provided in Section 5.01 hereof, provided, however, the said security interest shall be subordinate to the security interest in and to such moneys granted to the Trustee in the preceding paragraph for the benefit of the owners of the Bonds. 	 	 	To Have And To Hold all and singular the Trust Estate (as defined below) whether now owned or hereafter acquired, to the Trustee and its respective successors in trust and assigns forever; 	 	 In Trust Nevertheless, upon the terms and trusts herein set forth for the equal and proportionate benefit, security and protection of all present and future Owners of the Bonds issued under and secured by this Indenture without privilege, priority, or distinction as to the lien or otherwise of any of the Bonds over any of the other Bonds; 	 	Provided, However, that if the Issuer, its successors, or assigns, shall pay, or cause to be paid, the principal of, premium, if any, and interest on the Bonds due or to become due thereon, at the times and in the manner mentioned in the Bonds and as provided in Section 4.01 hereof according to the true intent and meaning thereof, or shall provide, as permitted hereby, for the payment thereof in accordance with Article X hereof, and shall keep, perform, and observe all the covenants and conditions pursuant to the terms of this Indenture to be kept, performed, and observed by it, and shall pay or cause to be paid to the Trustee all sums of money due or to become due in accordance with the terms and provisions hereof, then upon such final payments or deposits as provided in Article X hereof including payment of all amounts due and payable to the Bank under the Reimbursement Agreement and surrender of the Letter of Credit to the Bank for cancellation, this Indenture and the rights hereby granted shall cease, terminate, and be void and the Trustee shall thereupon cancel and discharge this Indenture and execute and deliver to the Issuer and the Company such instruments in writing as shall be requisite to evidence the discharge hereof. 	 	This Trust Indenture Further Witnesseth, and it is expressly declared, that all Bonds issued and secured hereunder are to be issued, authenticated, and delivered and all of the Trust Estate is to be dealt with\ and disposed of, under, upon, and subject to the terms, conditions, stipulations, covenants, agreements, trusts, uses, and purposes hereinafter expressed and the Issuer has agreed and covenanted, and does hereby agree and covenant, with the Trustee and with the respective Owners, from time to time, of the Bonds or any part thereof, as follows: 	 	 	 Article I 	 Definitions and Interpretation 	 	Section 1.01.	Definitions. Each of the following terms shall have the meaning assigned to it in this Section 1.01 whenever it is used in this Indenture, unless the context in which it is used clearly requires otherwise: 	 	"Adequate Interest Coverage" shall have the meaning set forth in Section 2.02(f)(iii) hereof. 	"Adjustable Rate" shall mean the interest rate per annum from time to time borne by the 	 Bonds when in the Adjustable Rate Mode, as established in accordance with Section 2.02(e) hereof. 	 	"Adjustable Rate Conversion Date" shall mean each Interest Payment Date on which the Bonds, upon having been converted to the Adjustable Rate Mode from another Mode, shall first begin to bear interest at an Adjustable Rate in accordance with the terms hereof, and each subsequent Adjustable Rate Reset Date. 	 	"Adjustable Rate Interest Payment Date" shall mean (i) with respect to an Adjustable Rate Period which extends over a period covering all or part of at least six calendar months, the first day of the sixth calendar month following the Adjustable Rate Conversion Date, and the first day of each successive sixth calendar month, if any, of such Adjustable Rate Period; provided, however, the final Adjustable Rate Interest Payment Date with respect to any such Adjustable Rate Period shall be the first Business Day of the calendar month immediately following the expiration of such Adjustable Rate Period, or the maturity date of the Bonds (if such Adjustable Rate Period extends to the final maturity of the Bonds), and (ii) with respect to an Adjustable Rate Period which extends over a period covering all or part of less than six calendar months, the first Business Day of the calendar month immediately following the expiration of such Adjustable Rate Period or the maturity date of the Bonds (if such Adjustable Rate Period extends to the final maturity of the Bonds). 	 	"Adjustable Rate Mode" shall mean the Mode in which the Bonds bear interest at an Adjustable Rate. 	 	"Adjustable Rate Period" shall mean any period selected in accordance with Section 2.01(e) of not less than one month in duration, commencing on an Adjustable Rate Conversion Date or an Adjustable Rate Reset Date, as appropriate, and ending on the day preceding a subsequent Conversion Date or Adjustable Rate Reset Date, as appropriate. 	 	"Adjustable Rate Reset Date" shall mean an Adjustable Rate Interest Payment Date on which the Bonds begin to bear interest at a new Adjustable Rate in accordance with the terms hereof. 	 	"Agreement" shall mean the Loan Agreement, dated as of April 1, 1994, between the Issuer and the Company, as amended and supplemented. 	 	 	"Alternate Credit Facility" shall mean an irrevocable letter of credit or other credit facility described in Section 5.03(b) hereof delivered pursuant to such Section in substitution for a Letter of Credit. 	"Authorized Company Representative" shall mean the President or Vice President of the Company or any other person designated by the Company to act on behalf of the Company pursuant to a written instrument filed with the Trustee, the Issuer, and the Bank containing the specimen signature of such person. Such instrument may designate an alternate or alternates. 	 	 "Authorized Denomination" shall mean $100,000 and any integral multiple thereof. 	 	"Available Moneys" shall mean 	 	(1)	During any period the Letter of Credit is in effect: 	 	(a)	proceeds from the remarketing of any Bonds, tendered for purchase pursuant to this Indenture, to any person other than the Issuer, the Company, the Guarantor, or any "insider" (as defined in the Bankruptcy Code) of the Issuer, the Company, or the Guarantor; 	 	(b)	moneys derived from any draw on the Letter of Credit; 	 	(c)	any other moneys or securities, if there is delivered to the Trustee an opinion of an attorney-at-law, duly admitted to practice before the highest court of the jurisdiction in which such attorney maintains an office, who is not a full-time employee of the Company, the Bank, the Issuer, or the Remarketing Agent, having expertise in bankruptcy matters (who, for purposes of such opinion, may assume that no Owner is an "insider," as defined in the Bankruptcy Code) to the effect that the use of such moneys or securities to pay the principal or purchase price of, premium, if any, or interest on the Bonds would not be avoidable as preferential payments under Section 547 of the Bankruptcy Code recoverable under Section 550 of the Bankruptcy Code should the Company become a debtor in a proceeding commenced thereunder, which opinion shall also be addressed to and acceptable to any Rating Agency then rating the Bonds; and 	 	(d)	earnings derived from the investment of any of the foregoing; and 	(2)	During any period the Letter of Credit is not in effect, any moneys held by the Trustee in any Fund or Account under this Indenture and available, pursuant to the provisions hereof, to be used to pay principal of, premium, if any, or interest on, or the purchase price of, the Bonds. 	"Bank" shall mean the issuer of the Letter of Credit then in effect. All references to "Bank" shall be of no effect at any time that no Letter of Credit is issued and secures the Bonds, except with respect to rights of any Bank established hereunder which do not, by their terms, expire upon the expiration of the Letter of Credit issued by such Bank. "Bankruptcy Code" shall mean the United States Bankruptcy Reform Act of 1978, as amended from time to time, or any substitute or replacement legislation. 	 	"Beneficial Owner" means the person in whose name a Bond is recorded as beneficial Owner of such Bond by the Securities Depository or a Participant or an Indirect Participant on the records of such Securities Depository, Participant or Indirect Participant, as the case may be, or such Person's subrogee. 	 	 	"Bond Counsel" shall mean, with respect to the original issuance of the Bonds, Hutchison Boyle Brooks & Fisher, and thereafter, any firm of attorneys of nationally recognized expertise with respect to the tax- exempt obligations of political subdivisions, selected by the Company and acceptable to the Remarketing Agent, the Trustee, and the Issuer. 	 	"Bond Fund" shall mean the Fund by that name established by Section 5.02 of this Indenture. 	 	 "Bond Owner," or "Owner of the Bonds," when used with respect to a Bond, shall mean the person or entity in whose name such Bond shall be registered. 	 	"Bond Proceeds Fund" shall mean the Fund by that name established by Section 5.01 of this Indenture. 	 	"Bonds" shall mean the $8,000,000 Industrial Development Revenue Bonds, Series 1994 (Trencor Jetco, Inc. Project) issued pursuant to this Indenture. 	 	"Bond Year" means each one-year period that ends on the day selected by the Issuer. The first and last Bond Years may be short periods. If no day is selected by the Issuer before the date the Bonds are retired or the date that is five years after the Closing Date, Bond Years end on each anniversary of the Closing Date and the date the Bonds are retired. 	 	"Book-Entry System" means a book-entry system established and operated for the recordation of Beneficial Owners of the Bonds pursuant to Section 2.12 hereof. 	 	"Business Day" or "business day" shall mean any day which is not (i) a Saturday or a Sunday, (ii) a day on which banking institutions in the cities of New York, New York, or Fort Worth, Texas (or, if different, in the cities in which the corporate trust office of the Trustee and the office of the Bank at which drawings under the Letter of Credit are to be honored are located), are authorized or required by law or executive order to close, or (iii) a day on which the New York Stock Exchange is closed. 	 	 "Closing Date" shall mean the date of initial issuance and delivery of the Bonds to the purchasers thereof. 	 	"Code" shall mean the Internal Revenue Code of 1986, as amended. Each citation to a section of the Code shall include the Regulations applicable to such Section. 	 	 "Company" shall mean Trencor Jetco, Inc., a Texas corporation and a wholly owned subsidiary of the Guarantor, its successors and assigns. 	 	"Company Bonds" shall mean Bonds purchased with moneys described in Section 3.09(c) hereof. 	 	"Completion Date" shall mean the date the acquisition, construction, and equipping of the Project is certified to be complete in accordance with the provisions of Section 3.3 of the Agreement. 	 	 "Construction Period" shall mean the period between the beginning of construction or the date on which Bonds are first delivered to the purchasers thereof, whichever is earlier, and the Completion Date. 	 	"Conversion Date" shall mean an Adjustable Rate Conversion Date, a Weekly Rate Conversion Date, a Daily Rate Conversion Date or a CP Rate Conversion Date, as appropriate. 	 	"Cost of the Project" shall mean the sum of the items authorized to be paid from the Project Account pursuant to the provisions of Section 4.2 of the Agreement. 	 	"CP Rate" shall mean the interest rate per annum on the Bonds established in accordance with Section 2.02(d) hereof. 	 	"CP Rate Conversion Date" shall mean each Interest Payment Date on which the Bonds, having been converted to the CP Rate Mode from another Mode, first begin to bear interest at a CP Rate in accordance with the terms hereof. 	 	"CP Rate Interest Payment Date" shall mean the Business Day which immediately succeeds the last date of any CP Rate Period. 	 	"CP Rate Mode" shall mean the interest rate Mode in which Bonds bear interest at the CP Rate. 	 	"CP Rate Period" shall mean, while the Bonds are in the CP Rate Mode, the period (a) which begins on a CP Rate Conversion Date or a CP Rate Reset Date, as appropriate, and (b) has a duration which shall have been set by the Remarketing Agent as provided in Section 2.02(d), but shall never be shorter than 30 days nor longer than 270 days, and (c) which ends on a day which immediately precedes a Business Day and which falls on or prior to the maturity date of the Bonds. 	 	"CP Rate Reset Date" shall mean each CP Rate Interest Payment Date on which commences a new CP Rate Period, whereon a new CP Rate which shall have been set pursuant to Section 2.02(d) shall first become effective. 	 	"Daily Interest Period" shall mean, while the Bonds are in the Daily Rate Mode, the period from and including each day which is a Business Day to but excluding the next succeeding day which is a Business Day. 	 	"Daily Rate" shall mean the interest rate per annum on the Bonds established in accordance with Section 2.02(c) hereof. 	 	"Daily Rate Conversion Date" shall mean each date on which the Bonds, having been converted to the Daily Rate Mode from another Mode, first begin to bear interest at a Daily Rate in accordance with the terms hereof. 	 	"Daily Rate Interest Payment Date" shall mean the first Business Day of each month during which the Bonds shall be in the Daily Rate Mode, commencing with the first Business Day of the month next succeeding each Daily Rate Conversion Date or, if applicable, the Closing Date. 	 	"Daily Rate Mode" shall mean the Mode in which the Bonds bear interest at a Daily Rate. 	"Daily Rate Period" shall mean the period from the Daily Rate Conversion Date to the earlier to occur of the following Conversion Date or the date on which principal of the Bonds is paid in full. 	 	"Determination of Taxability" shall mean the receipt by the Trustee of evidence of a judgment or order of a court of competent jurisdiction, or a final ruling, technical advice, or decision of the internal Revenue Service to the effect that the interest on the Bonds (other than interest on any Bond for any period during which such Bond is held by a "substantial user" of the Project or a "related person," as such terms are used in section 147(a) of the Code) is includable for federal income tax purposes in the gross incomes of recipients thereof; provided, however, that in no event shall a Determination of Taxability be based upon the inclusion of interest in any minimum tax or indirect tax. For purposes of this definition, a ruling or decision of the Internal Revenue Service shall be considered final if no appeal or action for a judicial review has been filed and the time for filing of such appeal or action has expired. 	 	"Event of Default," used with respect to this Indenture, shall mean any event specified in Section 6.01 of this Indenture. 	 	"Government obligations" shall mean direct obligations of, or obligations the timely payment of the principal of, and interest on, which are fully and unconditionally guaranteed by the United States of America, which, at the time of investment, are not subject to prepayment or redemption prior to maturity and are legal investments under the laws of the State for the moneys proposed to be invested therein. 	 	"Guarantor" shall means Astec Industries, Inc., a Tennessee corporation, its successors and assigns. 	 	"Guaranty" shall mean the Guaranty Agreement dated as of April 1, 1994, between the Guarantor and the Trustee, as the same is supplemented and amended. 	 	"Indenture" shall mean this Indenture of Trust, as amended and supplemented. 	 	"Indirect Participant" means a broker-dealer, bank, or other financial institution for which the Securities Depository holds Bonds as a securities depository through a Participant. 	 	"Initial Letter of Credit" shall mean the Letter of Credit delivered on the Closing Date by the Bank for the purpose of securing the Bonds, as extended or amended from time to time. 	 	"Interest Payment Date" shall mean an Adjustable Rate Interest Payment Date, a Weekly Rate Interest Payment Date, a Daily Rate Interest Payment Date, a CP Rate Interest Payment Date, each date upon which the Bonds shall be subject to mandatory tender for purchase pursuant to Section 2.04 hereof, and any date upon which the outstanding principal amount of the Bonds becomes due. 	 	"Issuer" shall mean Grapevine Industrial Development Corporation, and its successors and assigns. 	 	"Letter of Credit" shall mean the Initial Letter of Credit and, if an Alternate Credit Facility is issued, each Alternate Credit Facility, as extended or amended from time to time. All references to the "Letter of Credit" shall be of no effect at any time that no Letter of Credit secures the Bonds, except with respect to rights of any Bank created hereunder which do not, by their terms, expire upon the termination of the Letter of Credit issued by such Bank. 	 	"Maintenance of Rating" shall have the meaning set forth in Section 5.03(b) hereof. "Maximum Rate" shall mean the rate per annum equal to the lesser of (a) 15% per annum, or (b) if a Letter of Credit is then in effect, the maximum interest rate stated in such Letter of Credit for purposes of calculating the interest portion of the stated amount of such Letter of Credit. 	 	"Mode" shall mean any of the interest rate modes which may exist from time to time with respect to the Bonds, including the Adjustable Rate Mode, the Weekly Rate Mode, the Daily Rate Mode, or the CP Rate Mode, as appropriate. 	 	"Offering Agreement" shall mean the Offering Agreement, dated as of April 1, 1994, among the Issuer, the Company, the Guarantor, and the Offering Agent, including all amendments thereof and supplements thereto. 	 	"Offering Agent" shall mean The First National Bank of Chicago, Chicago, Illinois. 	 	"Outstanding" or "Bonds outstanding" or "Bonds then outstanding," at the time in question, shall mean all Bonds which have been executed and delivered by the Issuer and authenticated by the Trustee or the Tender Agent under this Indenture, except: 	 	(i)	Bonds theretofore canceled by the Trustee or surrendered to the Trustee for cancellation; 	(ii)	Bonds paid or deemed to be paid pursuant to Article X hereof; 	(iii)	Bonds in lieu of or in exchange for which other Bonds shall have been executed and delivered by the Issuer and authenticated by the Trustee or the Tender Agent pursuant to Sections 2.07, 2.08, 2.10, or 3.06 hereof; and 	(iv)	Undelivered Bonds. "Participant" shall mean a broker- dealer, bank, or other financial institution for which the Securities Depository holds Bonds as a securities depository. 	 	"Pledged Bonds" shall mean Bonds purchased with moneys provided to the Tender Agent pursuant to Section 3.09(b) hereof. 	 	"Principal Office" shall have the respective meaning as stated in the definitions of the Remarketing Agent and Tender Agent set forth herein. 	 	"Project" shall mean the project as described in Exhibit A to the Agreement. 	 	"Purchase Fund" shall mean the fund by that name established pursuant to Section 3.07(b) of this Indenture. 	 	"Qualified Costs of Construction" shall mean that portion of the Cost of the Project which constitutes land costs or costs of property of a character subject to the allowance for depreciation for federal income tax purposes and which were incurred and paid, or are to be incurred and paid, after January 17, 1994. 	 	"Qualified Investments" shall mean, subject to any restrictions imposed by State law, (i) Government Obligations, (ii) obligations of the Federal National Mortgage Association, the Government National Mortgage Association or the Federal Home Loan Mortgage Corporation, (iii) commercial paper or finance company paper rated not less than "P-l" by Moody's Investors Service or "A-1+" by Standard & Poor's Corporation, (iv) certificates of deposit or other time or demand deposits of banks (including, without limitation, the Trustee and the Bank) that are fully insured by the Federal Deposit Insurance Corporation or fully secured by obligations described in (i) or (ii) above, (v) repurchase agreements secured by obligations described in (i) or (ii) above or bonds or obligations which are authorized by law as security for public deposits, provided that no proceeding under any applicable insolvency or reorganization law has been commenced by or against the issuer of such bonds or obligations, and provided, further, that such bonds or obligations and debt of the issuer of the repurchase agreement bear one of the three highest full credit ratings assigned by 	 Moody's Investors Service and Standard & Poor's Corporation, (vi) any investment fund or other investment pooling arrangement which purchases and holds exclusively Government Obligations or repurchase agreements meeting the requirements of (v) above, (vii) Tax-Exempt Obligations (as defined in the Tax Agreement) rated in one of the two highest full rating categories by either of the Rating Agencies, and (viii) any other investment approved in writing by the Bank. 	 	"Rating Agencies" shall mean S&P and/or Moody's Investors Service, according to which of such rating agencies then rates the Bonds; and provided that if neither of such rating agencies then rates the Bonds, the term "Rating Agencies" shall refer to any national rating agency (if any) which provides such rating. If only one Rating Agency then rates the Bonds, Rating Agencies" shall at that time mean only such Rating Agency. 	 	"Rebate Fund" shall mean the fund by that name created pursuant to Section 5.10 of this Indenture. 	 	"Record Date" shall mean (a) with respect to any Weekly Rate Interest Payment Date, Daily Rate Interest Payment Date, CP Rate Interest Payment Date, or Adjustable Rate Interest Payment Date for an Adjustable Rate Period of less than six months in duration, the close of business on the Business Day next preceding such Interest Payment Date, and (b) with respect to any Adjustable Rate Interest Payment Date for an adjustable Rate Period of greater than or equal to six months in duration, the close of business on the fifteenth day of the calendar month next preceding such Interest Payment Date. 	 	"Regulations" shall mean the temporary and permanent Income Tax Regulations promulgated or proposed by the Department of the Treasury pursuant to the Code, as applicable to the Bonds. 	 	 "Reimbursement Agreement" shall mean with respect to each Letter of Credit, the agreement pursuant to which such Letter of Credit is issued. All references to "Reimbursement Agreement" shall be of no effect at any time that no Letter of Credit is issued and secures the Bonds, except with respect to rights of any Bank which do not, by their terms, expire upon the expiration of the Letter of Credit issued by such Bank. 	 	"Remarketing Agent" shall mean the Remarketing Agent appointed in accordance with Section 7.10 hereof, and shall mean initially The First National Bank of Chicago, Chicago, Illinois. "Principal Office" of the Remarketing Agent shall mean the office thereof designated in writing to the Issuer, the Trustee, the Bank, and the Company, and shall mean initially the office of the Remarketing Agent located at One First National Plaza, Suite 0463, Chicago, Illinois 60670-0463, Attention: Municipal Bond department/Short Term Trading. 	 	"Remarketing Agreement" shall mean the Remarketing Agreement dated as of April 1, 1994 among the Company, the Guarantor, and the Remarketing Agent. 	"S&P" shall mean Standard & Poor's Ratings Group, a division of McGraw-Hill, Inc., its successors and assigns. 	"Securities Depository" means The Depository Trust Company and any substitute for or successor to such securities depository that shall maintain a Book Entry System with respect to the Bonds. 	 	"Securities Depository Nominee" means the Securities Depository or the nominee of such Securities Depository in whose name there shall be registered on the registration books of the Issuer the Bonds to be delivered to such Securities Depository during the continuation with such Securities Depository of participation in its Book Entry System. 	 	 "State" shall mean the State of Texas. 	 	 "Tax Agreement" shall mean the Tax Exemption Certificate and Agreement dated the Closing Date among the Company, the Issuer, and the Trustee, as amended and supplemented. 	 	 "Tender Agent" shall mean the Tender Agent appointed in accordance with Section 7.11 hereof if the Bonds are not then in a Book- Entry System. "Principal Office" of the Tender Agent shall mean the office thereof designated in writing to the Issuer, the Trustee, the Bank, the Remarketing Agent and the Company. 	 	"Trustee" shall mean Bank One, Texas, NA, or any successor trustee or co-trustee serving as such under this Indenture. 	 	"Trust Estate" shall mean the property conveyed to the Trustee pursuant to the Granting Clause of this Indenture. 	 	"Unassigned Rights" shall mean the rights of the Issuer under Sections 5.2, 7.2, and 9.3 of the Agreement, the Issuer"s rights to consent to amendments to the Agreement and its rights to receive notices thereunder. 	 	"Undelivered Bonds" shall mean, during any period the Bonds are not in the Book-Entry System, Bonds for which notice of optional tender shall have been given pursuant to Section 2.03 and Bonds subject to mandatory tender pursuant to Section 2.04, for which Available Moneys sufficient to pay the purchase price have been deposited with the Tender Agent on or before the purchase date of such Bonds, but which Bonds were not delivered to the Tender Agent on or before such purchase date. 	 	"Weekly Interest Period" shall mean, while the Bonds are in the Weekly Rate Mode, each period from and including Wednesday of each week (and, if the first day of any Weekly Rate Period is not a Wednesday, the Weekly Rate Conversion Date on which such Weekly Rate Period commences) through and including the following Tuesday, whether or not such days are Business Days. In addition, and notwithstanding the foregoing, the initial Weekly Interest Period shall commence on the Closing Date and shall end on the following Tuesday. 	 	"Weekly Rate" shall mean the interest rate per annum on the Bonds established in accordance with Section 2.02(b) hereof. 	 	"Weekly Rate Conversion Date" shall mean each date on which the Bonds, having been converted to the Weekly Rate Mode from another Mode, first begin to bear interest at a Weekly Rate in accordance with the terms hereof. 	 	"Weekly Rate Interest Payment Date" shall mean the first Business Day of each month during which the Bonds are in the Weekly Rate Mode, commencing with the first Business Day of the month following the Weekly Rate Conversion Date or, if applicable, the Closing Date. 	 "Weekly Rate Mode" shall mean the Mode in which the Bonds bear interest at a Weekly Rate. 	 	"Weekly Rate Period" shall mean the period from the Closing Date or any Weekly Rate Conversion Date to the earlier of the next following Conversion Date or the maturity date of the Bonds. 	 	Section 1.02 Article and Section Headings. The headings or titles of the several Articles and Sections of this Indenture, and the Table of Contents appended hereto, are solely for convenience of reference and shall not affect the meaning or construction of the provisions hereof. 	 	Section 1.03. Interpretation. The singular form of any word used herein shall include plural, and vice versa, if applicable. The use of a word of any gender shall include all genders, if applicable. Any reference to a particular Article or Section shall be to such Article or Section of this Indenture unless the context shall otherwise require. Any reference to any time of day on any date shall be to prevailing time in New York City, New York, on such date unless otherwise specified herein. 	 	 	 Article II 	 Authorization and Issuance of the Bonds 	 	Section 2.01. Authorization of Bonds; No Additional Bonds. (a) The Bonds are hereby authorized to be issued in a single series, which shall be designated as Grapevine Industrial Development Corporation Industrial Development Revenue Bonds, Series 1994 (Trencor Jetco, Inc. Project) (the "Bonds"). The Bonds shall be issued in the aggregate principal amount of $8,000,000. 	 	(b)	The Bonds shall be issued for the purpose of providing funds to pay costs of the Project and certain costs of issuance of the Bonds. No Bonds may be issued pursuant to this Indenture in addition to those authorized by this Section 2.01, except Bonds issued upon transfer or exchange pursuant to Section 2.07 hereof, temporary Bonds issued pursuant to Section 2.10 hereof, replacement Bonds issued pursuant to Section 2.08 hereof, Bonds issued pursuant to Section 3.06 hereof, and Bonds delivered pursuant to Section 3.10 hereof. 	 	Section 2.02. Issuance of Bonds; Terms of Bonds. (a) General Provisions. The Bonds shall: (i)	be dated as provided in Section 2.02(i) below, 	 	 	(ii)	bear interest initially in the Weekly Rate Mode and, thereafter, as set forth in paragraphs (b) through (f) of this Section, until paid, at the rates therein provided (computed, while the Bonds are in the Weekly Rate Mode, the CP Rate Mode or the Daily Rate Mode, on the basis of a 365- or 366-day year, for the actual number of days elapsed and, while the Bonds are in the Adjustable Rate Mode, on the basis of a 360-day year, composed of twelve 30-day months), payable on each Interest Payment Date, 	 	 	(iii)	all be in the same Mode at the same time, and 	 	 	(iv)	mature on April 1, 2019. 	 	 	(b)	Weekly Rate Provisions. 			(i) The Bonds shall bear interest at a Weekly Rate from the Closing Date (if applicable) and from each Weekly Rate Conversion Date to the earlier of their redemption, the following Conversion Date or their maturity date. The Weekly Rate for each Weekly Interest Period shall be the lowest rate of interest which will, in the sole judgment of the Remarketing Agent, having due regard for prevailing financial market conditions, permit the Bonds to be remarketed at par on the first day of such Weekly Interest Period. Notwithstanding the foregoing, the Weekly Rate so established shall be not more than the Maximum Rate. Each determination of a Weekly Rate by the Remarketing Agent shall be conclusive and binding. 	Notwithstanding the foregoing, if at any time the Remarketing Agent shall fail to determine a Weekly Rate as set forth above, then, until the Remarketing Agent shall next determine the Weekly Rate in such fashion, the Weekly Rate shall be the rate from time to time established as the J.J. Kenney index rate for high grade tax-exempt obligations having maturities of 30 days. If such index rate is not available, the Weekly Rate shall be the rate from time to time established by the Public Securities Association Municipal Swap Index, and if such index is not available, the Weekly Rate shall be the rate from time to time established by such other comparable index as may be selected by the Company upon notice to the Trustee. In no event however may the interest rate on the Bonds exceed the Maximum Rate. 	 	 	(ii)	On Tuesday (unless Tuesday is not a Business Day, then on the next preceding Monday; unless Monday and Tuesday are not Business Days, then on the next subsequent Wednesday, whether or not a Business Day) of each calendar week during a Weekly Rate Period, with respect to each Weekly Interest Period, the Remarketing Agent shall determine and furnish to the Trustee, the Company, the Bank, and the Tender Agent, if any, the Weekly Rate for the ensuing Weekly Interest Period. On the Business Day preceding each Weekly Rate Interest Payment Date, the Trustee shall furnish to the Company, the Bank and, if the Bonds are not in a Book-Entry System, to the Tender Agent, the Weekly Rates applicable to the Bonds from the time of the prior notice of such rates. Should any Owner or Beneficial Owner request such in writing, the Remarketing Agent shall also furnish (by first class mail, postage prepaid) the Weekly Rate to such requesting Owner or Beneficial Owner. 	 	(c)	Daily Rate Provisions. (i) The Bonds shall bear interest at a Daily Rate from the Closing Date (if applicable) and from each Daily Rate Conversion Date to the earlier of their redemption, the following Conversion Date or their maturity date. The Daily Rate for each Daily Interest Period shall be the interest rate determined by the Remarketing Agent on the first day of such Daily Interest Period (by not later than 11:00 a.m.), which shall be the lowest rate of interest which will, in the sole judgment of the Remarketing Agent having due regard for prevailing financial market conditions, permit the Bonds to be remarketed at par on the said first day of such Daily Interest Period. Notwithstanding the foregoing, the Daily Rate so established shall be not more than the Maximum Rate. In the event no Daily Rate is determined by the Remarketing Agent for a Daily Interest Period, then the Bonds shall automatically bear interest at the last Daily Rate previously determined pursuant to this Indenture. Each determination of a Daily Rate by the Remarketing Agent shall be conclusive and binding. 	 	(ii)	On the Business Day preceding each Interest Payment Date during each Daily Rate Period, the Remarketing Agent will furnish to the Trustee, and the Trustee will furnish to the Bank, the Company, and the Tender Agent, if any, the Daily Rates applicable to the Bonds during such Daily Rate Period. Should any Owner or Beneficial Owner request in writing the Daily Rate applicable to the Bonds for any particular day, the Remarketing Agent will furnish such Daily Rate to such requesting Owner or Beneficial Owner. 	 	(d)	CP Rate Provisions. (i) The Bonds shall bear interest at a CP Rate from each CP Rate Conversion Date or CP Rate Reset Date, as appropriate, to the earlier of their redemption, the following Conversion Date or the following CP Rate Reset Date. In the case of each CP Rate Period, on the first day thereof, the Remarketing Agent shall determine (i) the duration of the CP Rate Period and (ii) the CP Rate which shall apply during such CP Rate Period. The duration of the CP Rate Period so determined shall be that which, in the sole judgment of the Remarketing Agent will provide the lowest overall interest cost with respect to the Bonds, with due regard to prevailing financial market conditions, foreseeable changes in such conditions, the anticipated duration of the period the Bonds may remain in the CP Rate Mode, and such other factors which the Remarketing Agent, in its sole judgment, shall deem relevant and economically advantageous to consider. Upon determination of the duration of the CP Rate Period, the Remarketing Agent shall determine the CP Rate which shall be in effect during such CP Rate Period, which shall be the lowest rate of interest which, in the sole judgment of the Remarketing Agent, having due regard to prevailing financial market conditions, will permit the Bonds to be sold at par on the first day of such CP Rate Period. Notwithstanding the foregoing, the CP Rate so determined shall not be more than the Maximum Rate. Unless and until the Company elects to effect a conversion of the Bonds from the CP Rate Mode to another Mode, the Remarketing Agent shall continually redetermine the duration of, and the CP Rate to be effective during, each new CP Rate Period, which will commence, without further action on the part of the Company, on each CP Rate Reset Date. If on any CP Rate Reset Date, the Remarketing Agent shall fail to determine either the duration of, or the CP Rate to be effective during, the CP Rate Period which commences on such date, then, without further action on the part of any person, the Bonds shall automatically convert to the Weekly Rate Mode upon such date, and the Bonds shall thereupon bear interest of the Weekly Rate. Upon such event the Trustee shall promptly notify the Owners, the Company, the Tender Agent, if any, and the Bank of such automatic conversion. Each determination by the Remarketing Agent pursuant to this paragraph shall be conclusive and binding. 	 	(ii)	On the first day of each CP Rate Period, the Remarketing Agent shall furnish to the Trustee, the Bank, the Company, and, if the Bonds are not in a Book-Entry System, the Tender Agent, notice of the duration of such CP Rate Period and the CP Rate to be effective during such CP Rate Period. Should any Owner or Beneficial Owner request notice of such items in writing, the Remarketing Agent shall provide such notice (by first class mail, postage prepaid) to such requesting Owner or Beneficial Owner. 	 	(e)	Adjustable Rate Provisions. The Bonds shall bear interest at an Adjustable Rate from each Adjustable Rate Conversion Date or each Adjustable Rate Reset Date, as appropriate, to the earlier of their redemption, the following Conversion Date, the following Adjustable Rate Reset Date, or the following date on which the Bonds shall be subject to mandatory tender for purchase pursuant to Section 2.04 hereof. Upon a conversion of the Bonds to the Adjustable Rate Mode, the duration of the initial Adjustable Rate Period shall be that period specified in the Company's conversion notice delivered pursuant to Section 2.02(f)(i) for the purpose of effecting such conversion. An Adjustable Rate Period shall be of at least one month's duration and shall end on the day preceding the first Business Day of a calendar month or, if such Adjustable Rate Period extends to the final maturity of the Bonds, such final maturity date. The Bonds thereupon shall remain in the Adjustable Rate Mode for as long as the Company shall continue to deliver timely notices pursuant to Section 2.02(f)(i) specifying the duration of the next subsequent Adjustable Rate Period which is to commence on the expiration of any current Adjustable Rate Period. The Remarketing Agent, on or prior to the commencement of each Adjustable Rate Period, shalldetermine the Adjustable Rate to be borne by the Bonds during such Adjustable Rate Period, which shall be the lowest rate which, in its sole judgment having due regard for prevailing financial market conditions, will permit the Bonds to be sold at par on the first day of such Adjustable Rate Period. Notwithstanding the foregoing, the Adjustable Rate shall not be more than the Maximum Rate. If, during any period the Bonds shall be in the Adjustable Rate Mode, either (i) the Company shall not deliver a timely conversion notice specifying the duration of the next subsequent Adjustable Rate Period, or (ii) on or prior to any Adjustable Rate Reset Date the Remarketing Agent shall fail to determine the Adjustable Rate to be borne by the Bonds during such Adjustable Rate Period, then, any other provision hereof notwithstanding, the Bonds, without further action on the part of any other person, shall automatically convert to the Weekly Rate Mode on the date which otherwise would have been the Adjustable Rate Reset Date and, the Bonds shall thereupon bear interest at the Weekly Rate determined pursuant to Section 2.02(b)(i). Upon such event, the Trustee shall promptly notify the Owners, the Company, the Tender Agent, if any, and the Bank of such automatic conversion. Each determination of an Adjustable Rate by the Remarketing Agent shall be conclusive and binding. 	 	(f)	Conversion Options. (i) In General. The interest rate Mode of the Bonds shall be converted from one Mode to another, and an Adjustable Rate Period of one duration shall be converted to an Adjustable Rate Period of the same or another duration, if the Company shall notify the Trustee, the Tender Agent, the Bank, and the Remarketing Agent of its election to effect such a conversion and each other condition to any such conversion set forth herein shall have been satisfied. The Company"s conversion notice shall specify the date on which the Conversion Date will occur (which date shall be not sooner than 25 days after the date such notice is given) and if the conversion is to an Adjustable Rate Period, shall specify the Interest Payment Date which shall be the day following the last day of such Adjustable Rate Period. Notwithstanding the foregoing, no conversion from a Short Term Mode to a Long Term Mode or from a Long Term Mode to a Short Term Mode (as such terms are defined in Section 5.03(d) below), and no conversion effected in connection with either a change in the Bank issuing the Letter of Credit supporting payment of the Bonds, a change in the security for the Bonds, or an amendment to this Indenture or the Agreement, shall be effective unless the Company has delivered with such notice an opinion of Bond Counsel (which opinion must be confirmed on the Conversion Date) stating that such conversion will not adversely affect the excludability from gross income of interest on the Bonds for federal income tax purposes. The Conversion Date shall be the date specified in the Company notice; provided that no conversion from the Adjustable Rate Mode or the CP Rate Mode shall be effective prior to the Business Day following the last day of the Adjustable Rate Period or CP Rate Period, as the case may be, which is then in effect. In the event any condition precedent to conversion (including, but not limited to, the establishment by the Remarketing Agent of the initial interest rate to be in effect after the Conversion Date or, if required, the delivery of the Bond Counsel opinion described above) is not satisfied on or prior to the Conversion Date, the Bonds shall nonetheless be subject to mandatory tender on the Conversion Date and, upon such date, the Bonds, without any further action on the part of any person, shall automatically convert to the Weekly Mode, and the Bonds shall thereupon bear interest at the Weekly Rate determined pursuant to Section 2.02(b)(i). 	 	(ii)	Conversion Notice. At least 20 days prior to each Conversion Date, the Trustee shall give to each Owner notice by certified mail stating: (A) the Conversion Date, (B) that on the Conversion Date, the Bonds are subject to mandatory tender and purchase, (C) that, subject to clause (E) below, all Owners who fail to tender their Bonds for purchase on the mandatory tender date will nonetheless be deemed to have tendered their Bonds for purchase on such date, (D) that, subject to clause (E) below, any Bonds not delivered to the Tender Agent on or prior to the mandatory tender date, for which there has been irrevocably deposited in trust with the Trustee or the Tender Agent on or prior to the mandatory tender date Available Moneys sufficient to pay the purchase price of such Undelivered Bonds on the mandatory tender date, shall be deemed to have been so purchased at the purchase price, and such Bonds shall no longer be considered to be outstanding for purposes of this Indenture and shall no longer be entitled to the benefits of this Indenture, except for the payment of the purchase price thereof (and no interest shall accrue thereon subsequent to the mandatory tender date), and (E) that notwithstanding the foregoing, while the Bonds are held in the Book-Entry System, Bonds need not be physically tendered on the mandatory tender date, and transfers of beneficial Ownership interests will be effected by the Securities Depository in accordance with its rules and procedures. 	 	 (iii)	Letter of Credit Interest Coverage. The interest component of each Letter of Credit in effect during any Mode shall be sufficient to provide Adequate Interest Coverage (as defined below). With respect to the Weekly Rate Mode, the Daily Rate Mode, or the CP Rate Mode, "Adequate Interest Coverage" shall mean the aggregate amount of interest which would accrue on all Outstanding Bonds (other than Pledged Bonds and Company Bonds) at a rate equal to 10% per annum, computed on the basis of a 365-day year, (1) for a period of forty-eight (48) days, in the case of Bonds in the Weekly Rate Mode or the Daily Rate Mode, and (2) for a period of two hundred ninety (290) days, in the case of Bonds in the CP Rate Mode or such shorter period acceptable to the Rating Agencies and which will not result in a withdrawal or lowering of any rating on the Bonds from that which would otherwise accrue from a longer interest coverage period. Notwithstanding the foregoing, Adequate Interest Coverage during the Weekly Rate Mode, the Daily Rate Mode, or the CP Rate Mode may cover interest on Bonds at a rate other than 10% per annum if, (1) the Company provides the Trustee with an opinion of Bond Counsel to the effect that such coverage and the effect of such coverage upon clause (b) of the definition of "Maximum Rate" herein will not adversely affect the exclusion from gross income of interest on the Bonds for federal income tax purposes, and (2) if the applicable rate is to be less than 10% per annum, such lower rate will not result in a withdrawal or lowering of any rating on the Bonds from that which would otherwise accrue from maintaining coverage at the 10% rate. With respect to the Adjustable Rate Mode, "Adequate Interest Coverage" shall mean the aggregate amount of interest which would accrue on all Outstanding Bonds (other than Pledged Bonds and Company Bonds) at a rate equal to the Adjustable Rate to be borne by the Bonds during such Mode, computed on the basis of a 360-day year composed of twelve 30-day months, for a period of two hundred (200) days or with respect to an Adjustable Rate Period of less than six months' duration, for a period equal to the number of days in such Adjustable Rate Period plus twenty, or in either such case, such shorter period acceptable to the Rating Agencies and which will not result in a withdrawal, or lowering of any rating on the Bonds from that which would otherwise accrue from a longer interest coverage period. 	 	(g)	Denominations; Numbering. The Bonds are issuable only as registered Bonds without coupons in Authorized Denominations. The Bonds shall be numbered from 1 upwards, provided that the number assigned to each definitive Bond shall be prefixed by the letter "R." Temporary Bonds shall be prefixed by the letters "TR." The Initial Bond hereinafter described shall be numbered T-1. 	 	 (h)	Payment Terms. Principal of, and premium, if any, on, the Bonds shall be payable by the Trustee from moneys held by the Trustee in the Bond Fund to the Owners upon presentation and surrender of the Bonds as the same become due at the corporate trust office of the Trustee. Interest on the Bonds shall be paid by the Trustee by check drawn upon the Trustee and mailed by first class mail on the respective Interest Payment Dates to the Owners at their addresses shown on the registration books of the Trustee, or such other addresses as are furnished to the Trustee (in form satisfactory to the Trustee) by such Owners, as of the close of business on the Record Date with respect to such Interest Payment Date; provided that payment of interest shall be made by the Trustee by wire transfer to any Owner of $1,000,000 or more in aggregate principal amount of Bonds upon such Owner providing the Trustee with written wire transfer instructions acceptable to the Trustee before the applicable Record Date. If and to the extent there shall be a default in the payment of the interest due on an Interest Payment Date, such defaulted interest shall be paid to the Owners in whose names any such Bonds (or any Bond or Bonds issued upon registration of transfer or exchange thereof) are registered at the close of business on the Business Day next preceding the date of payment of such defaulted interest. Payment of the principal or purchase price of, and the premium, if any, and interest on, the Bonds shall be made in such lawful money of the United States of America as, at the respective times of payment, shall be legal tender for the payment of public and private debts. 	 	(i)	Dating. The Bonds shall be dated April 1, 1994 and initially bear interest from the Closing Date, and thereafter shall bear interest from the Interest Payment Date next preceding the date of authentication, unless (i) authenticated prior to the first Interest Payment Date, in which event such Bonds shall bear interest from the Closing Date, (ii) authenticated on an Interest Payment Date, in which event such Bonds shall bear interest from the date of authentication, or (iii) authenticated after a Record Date and before the following Interest Payment Date, in which event such Bonds shall bear interest from the following Interest Payment Date. If, as shown by the records of the Trustee, interest on the Bonds is in default, Bonds issued in exchange for Bonds surrendered for registration of transfer or exchange shall bear interest from the date to which interest has been paid in full on the Bonds, or, if no interest has been paid on the Bonds, from the Closing Date. 	 	 Section 2.03. Optional Tender. (a) While the Bonds are in the Weekly Rate Mode, any Outstanding Bond or portion thereof in an Authorized Denomination (except any Pledged Bond or Company ond) shall be purchased on the demand of the registered Owner thereof on any Business Day at a price equal to 100% of the principal amount thereof, plus accrued and unpaid interest thereon to the date of purchase, upon delivery (by telecopy or otherwise) to the Tender Agent at its Principal Office on any Business Day, of the following: 	 	(i)	a written irrevocable notice, which will be effective upon receipt, which (A) states the name and address of the registered Owner, the principal amount of such Bond (and the portion thereof to be tendered, if less than the full principal amount is to be tendered) and the Bond number, and (B) states the date on which such Bond shall be so purchased, which date shall be a Business Day not prior to the seventh day next succeeding the date of the delivery of such notice to the Tender Agent; and 	 	 (ii)	such Bond (with all necessary endorsements and guarantee of signature) attached to such notice; provided, however, that the purchase price of such Bond shall be paid only upon the delivery of the Bond to the Tender Agent and provided such Bond shall conform in all material respects to the description thereof in such notice; and provided, further, that if the registered Owner of the tendered Bond is an open-ended diversified management investment company (registered under the Investment Company Act of 1940, as amended), the delivery required under this paragraph (ii) need not be made until 11:00 a.m., New York City time, on the date such Bond is to be purchased from such registered Owner. Undelivered Bonds shall be deemed to have been delivered at the time and on the date required, and as of such date and time shall no longer be deemed to be Outstanding under this Indenture. The registered Owner of any Undelivered Bond shall be entitled only to the purchase price payable for such Bond on the required delivery date thereof, and such purchase price shall be paid to such registered Owner only upon surrender of such Bond to the Tender Agent. 	Notwithstanding the foregoing, if the Bonds in the Weekly Rate Mode are held in a Book-Entry System, a Beneficial Owner shall have the right to optionally tender for purchase its beneficial interest in any Outstanding Bonds (or portion thereof in an Authorized Denomination) at the purchase price set forth above, which right may be exercised as follows. Such right shall be exercised by delivery by the Beneficial Owner to the Remarketing Agent at its Principal Office of a notice identifying the name and address of such Beneficial Owner and stating that such Beneficial Owner will cause its beneficial interest (or portion thereof in an Authorized Denomination) to be purchased, the amount of such interest to be purchased, the date on which such interest will be purchased (which date shall be a Business Day at least seven days after delivery of such notice to the Remarketing Agent) and specifying the Remarketing Agent as the Participant through which the Beneficial Owner maintains its interest. Upon delivery of such notice, the Beneficial Owner shall cause its beneficial Ownership interest in the Bonds (or the portion thereof specified in the foregoing notice) being purchased to be transferred to the Remarketing Agent at or prior to 11:00 a.m., on the optional tender date, in accordance with the rules and procedures of the applicable Securities Depository. 	 	(b)	While the Bonds are in the Daily Rate Mode, any Outstanding Bond or portion thereof in an Authorized Denomination (except any Pledged Bond or Company Bond) shall be purchased on the demand of the registered Owner thereof on any Business Day at a price equal to 100% of the principal amount thereof, plus accrued and unpaid interest thereon to the date of purchase, upon delivery (by telecopy or otherwise) to the Tender Agent at its Principal Office (i) no later than 10:30 a.m. on such Business Day, of a written irrevocable notice, which will be effective upon receipt, which states the name and address of the registered Owner, the principal amount of such Bond (and the portion thereof to be tendered, if less than the full principal amount is to be tendered) on such Business Day and the Bond number, and (ii) no later than 11:00 a.m. on such Business Day such Bond (with all necessary endorsements and guarantees of signature); provided, however, that the purchase price of such Bond shall be paid only upon the delivery of the Bond to the Tender Agent and provided such Bond shall conform in all material respects to the description thereof in such notice. Undelivered Bonds shall be deemed to have been delivered at the time and on the date required, and as of such date and time shall no longer be deemed to be Outstanding under this Indenture. The registered Owner of any Undelivered Bond shall be entitled only to the purchase price payable for such Bond on the required delivery date thereof, and such purchase price shall be paid to such registered Owner only upon surrender of such Bond to the Tender Agent. 	Notwithstanding the foregoing, if the Bonds in the Daily Rate Mode are held in a Book-Entry System, a Beneficial Owner shall have the right to optionally tender for purchase its beneficial interest in any Outstanding Bonds (or portion thereof in an Authorized Denomination) at the purchase price set forth above, which right may be exercised as follows. Such right shall be exercised by delivery, by the Beneficial Owner to the Remarketing Agent at its Principal Office no later than 10:30 a.m., on the date on which the beneficial interest of such Beneficial Owner is to be purchased, of a notice identifying the name and address of such Beneficial Owner and stating that such Beneficial Owner will cause its beneficial interest (or portion thereof in an Authorized Denomination) to be purchased, the amount of such interest to be purchased, and specifying the Remarketing Agent as the Participant through which the Beneficial Owner maintains its interest. Upon delivery of such notice, the Beneficial Owner shall cause its beneficial Ownership interest in the Bonds (or the portion thereof specified in the foregoing notice) being purchased to be transferred to the Remarketing Agent at or prior to 11:00 a.m., on the optional tender date, in accordance with the rules and procedures of the applicable Securities Depository. 	 	 	Section 2.04. Mandatory Tenders. All Outstanding Bonds are subject to mandatory tender in whole by the Owners to the Tender Agent at its Principal Office on each date described below: 	 	 	(a)	On each Conversion Date; 	 	 	(b)	On each CP Rate Reset Date; 	 	 	(c)	On the second Business Day prior to the expiration or termination of the Letter of Credit (except for a termination because of the occurrence of a "default" or an "event of default" under the Reimbursement Agreement), if the Trustee has not received evidence satisfactory to it as required by Section 5.03(b) hereof by the 25th day preceding the scheduled Letter of Credit expiration or termination date of either an extension of the then existing Letter of Credit or the issuance of an Alternate Credit Facility meeting the requirements set forth therefor in the Agreement, including the Maintenance of Rating requirement (as defined in Section 5.03(b) of this Indenture); 	(d)	On the date of substitution of an Alternate Credit Facility for the then existing Letter of Credit if the Trustee has not received evidence of a Maintenance of Rating with respect thereto by the 25th day preceding such substitution date; and 	 	(e)	On each optional redemption date pursuant to Section 3.01 hereof for which the Company has elected to purchase Bonds in lieu of an optional redemption pursuant to Section 3.01(c) hereof; and 	(f)	On any date on which the Guaranty is released as provided in Section 9.05 hereof. 	 	 	The purchase price of Bonds subject to mandatory tender shall be 100% of the principal amount thereof (except in the case of a mandatory tender described in paragraphs (c), (d), (e) or (f) above, during, but prior to the expiration date of, an Adjustable Rate Period in which case the purchase price shall include a premium equal to the then applicable optional redemption premium, if any, on the Bonds), plus accrued interest, if any, to the mandatory tender date. Not later than 20 days prior to a mandatory tender date described in clauses (b), (c), (d), or (f) above, the Trustee shall mail notice to all Owners of Bonds stating that (l) due to the occurrence of one of the events described above (which event shall be specified), such Owner"s Bonds will be subject to mandatory tender on the mandatory tender date (which date shall be specified), (2) that, subject to clause (4) below, all Owners who fail to tender their Bonds for purchase on the mandatory tender date will nonetheless be deemed to have tendered their Bonds for purchase on such date, (3) that, subject to clause (4) below, any Bonds not delivered to the Tender Agent on or prior to the mandatory tender date, for which there has been irrevocably deposited in trust with the Trustee or the Tender Agent on or prior to the mandatory tender date Available Moneys sufficient to pay the purchase price of such Undelivered Bonds on the mandatory tender date, shall be deemed to have been so purchased at the purchase price, and such Bonds shall no longer be considered to be outstanding for purposes of this Indenture and shall no longer be entitled to the benefits of this Indenture, except for the payment of the purchase price thereof (and no interest shall accrue thereon subsequent to the mandatory tender date), and (4) that notwithstanding the foregoing, while the Bonds are held in the Book-Entry System, Bonds need not be physically tendered on the mandatory tender date, and transfers of beneficial Ownership interests will be effected by the Securities Depository in accordance with its rules and procedures. Notice of mandatory tenders described in clauses (a) and (e) of this Section shall be given as part of the notice of conversion referenced in Section 2.02(f)(ii) hereof or notice of redemption referenced in Section 3.04 hereof, respectively. No failure on the part of the Trustee to give such notice shall affect the requirement that Bonds be tendered on the mandatory tender date. 	 	When Bonds are not in a Book-Entry System, Undelivered Bonds shall, if Available Moneys sufficient to pay the purchase price of such Bonds in full and available for the purchase of such Bonds have been deposited with the Tender Agent on the mandatory tender date, be deemed to have been tendered for purchase on the mandatory tender date, and from such date will no longer be 	 deemed to be Outstanding for purposes of this Indenture. Owners of such Bonds shall have no rights 	 or benefits under this Indenture other than to receive the purchase price for such Bonds upon 	 surrender of such Bonds to the Tender Agent. Notwithstanding the foregoing, if on any mandatory 	 tender date the Bonds shall be in the Book-Entry System, it shall not be necessary that Bonds be 	 physically tendered to the Tender Agent on the mandatory tender date. Transfers of beneficial 	 Ownership interests shall be effected in accordance with the rules and procedures established by the 	 Securities Depository. 	 	 	Upon the occurrence of any mandatory tender described in paragraphs (c), (d), or (e) above 	 during an Adjustable Rate Period, commencing on the date of such mandatory tender the Bonds shall 	 bear interest in a Mode (and, in the case of the Adjustable Rate Mode, for an Adjustable Rate 	 Period) to be designated by the Company by notice to the Trustee given to the Trustee at least 25 	 days prior to such date, provided, however, the said designated Mode or Adjustable Rate Period shall 	 be effective on the mandatory tender date only if each prerequisite to a conversion specified in 	 Section 2.02(f) shall have been satisfied. If no designation is of a Mode or an Adjustable Rate Period 	 made by the Company, or if the prerequisites of Section 2.02(f) have not been satisfied, then, upon 	 the mandatory tender date, the Bonds shall convert automatically to the Weekly Rate Mode, and the 	 Bonds thereupon shall bear interest at the Weekly Rate determined pursuant to Section 2.02(b)(i). 	 	 	Section 2.05. Form of Bonds. The Bonds and the certificate of authentication, the provision 	 for registration and the form of assignment thereof shall be in substantially the form set forth in 	 Exhibit A hereto, with such appropriate variations, omissions, substitutions, insertions, notations, 	 legends and endorsements as may be deemed necessary or appropriate by the officers of the Issuer 	 executing the same and as shall be permitted or required by the Act and this Indenture. 	 	 	Section 2.06. Execution and Authentication of Bonds; Limited Obligations. (a) The Bonds 	 shall be executed on behalf of the Issuer with the manual or facsimile signature of the President or 	 the Vice President of the Issuer, and attested, under a manual or facsimile impression of the seal of 	 the Issuer, with the manual or facsimile signature of the Secretary or Assistant Secretary of the Issuer. 	 In case any officer of the Issuer whose signature or a facsimile thereof appears on a Bond shall cease 	 to be such officer before the delivery of such Bond, such signature or such facsimile shall nevertheless 	 be valid and sufficient for all purposes, the same as if such officer had remained in the office until 	 delivery. 	 	 	(b)	Except for the Initial Bond which shall be registered by the Comptroller of Public 	 Accounts of the State, no Bond shall be valid or obligatory for any purpose or be entitled to any 	 security or benefit under this Indenture unless and until a certificate of authentication on such Bond 	 substantially in the form of Exhibit A hereto shall have been duly executed by the Trustee, or, in the 	 case of purchased Bonds delivered by the Tender Agent pursuant to Section 3.10, by the Tender 	 Agent. Any such executed certificate upon any such Bond shall be conclusive evidence that such 	 Bond has been authenticated and delivered under this Indenture. The Initial Bond shall be made 	 payable to Cede & Co., as nominee of the purchaser, pursuant to Section 2.12(b) hereof. The 	 certificate of authentication on any Bond shall be deemed to have been executed by it if signed by 	 an authorized officer or signatory of the Trustee, or the Tender Agent but it shall not be necessary 	 that the same officer or signatory sign the certificate of authentication on all of the Bonds issued 	 hereunder. 	 	 	(c)	The Bonds are not general obligations of the Issuer, but are limited obligations 	 payable solely from Bond proceeds, the revenues of the Issuer from the Agreement and other moneys 	 pledged thereto and held by the Trustee hereunder which constitute the Trust Estate. Such proceeds, 	 revenues and other moneys are hereby pledged and assigned as security for the equal and ratable 	 payment of the Bonds and shall be used for no other purposes than to pay the principal of, premium, 	 if any, and interest on the Bonds, except as may be otherwise expressly authorized in this Indenture 	 or the Agreement. The Bonds shall not be a debt of the State, or any political subdivision of the 	 State within the meaning of any constitutional or statutory provision whatsoever; and neither the 	 State nor any political subdivision thereof shall be liable thereon; nor in any event shall such Bonds 	 or obligations be payable out of any funds or properties other than the Trust Estate, and then only 	 to the extent herein provided. Neither the members of the Issuer nor any persons executing the 	 Bonds shall be liable personally on the Bonds by reason of such execution. 	 	 	Section 2.07. Registration and Exchange of Bonds; Persons Treated as Owners. (a) Bonds 	 may be transferred only on the registration books of the Issuer for the Bonds, maintained by the 	 Trustee. Upon surrender for transfer of any Bond to the Trustee, duly endorsed for transfer or 	 accompanied by an assignment duly executed by the Owner or the Owner"s attorney duly authorized 	 in writing, the Trustee will authenticate a new Bond or Bonds in an equal total principal amount and 	 registered in the name of the transferee. 	 	 	(b)	Bonds may be exchanged for an equal total principal amount of Bonds of different 	 denominations. The Trustee will authenticate and deliver Bonds that the Owner making the exchange 	 is entitled to receive, bearing numbers not then outstanding. 	 	 	(c)	The Trustee will not be required to transfer or exchange any Bond during the period 	 beginning 10 Business Days before the mailing of notice calling such Bond or any portion of such 	 Bond for redemption and ending on the redemption date, except as provided in Sections 2.03 and 	 2.04 hereof. 	 	 	(d)	The Owner of a Bond shall, except as otherwise described herein with respect to 	 certain rights of Beneficial Owners, be the absolute Owner of the Bond for all purposes, and payment 	 of principal, interest or purchase price shall be made only to or upon the written order of the Owner 	 or the Owner"s legal representative. 	 	 	(e)	The Trustee will require the payment by a Owner requesting exchange or transfer of 	 any tax or other governmental charge required to be paid in respect of the exchange or transfer but 	 will not impose any other charge on the Owner. 	 	 	(f)	Notwithstanding the foregoing, for so long as the Bonds are held under the 	 Book-Entry System, transfers of beneficial Ownership will be effected pursuant to rules and 	 procedures established by the Securities Depository. 	 	 	Section 2.08. Mutilated, Lost, Stolen, or Destroyed Bonds. If any Bond is mutilated, lost, 	 stolen, or destroyed, the Trustee will authenticate a new Bond of the same denomination if any 	 mutilated Bond shall first be surrendered to the Trustee, and if, in the case of any lost, stolen, or 	 destroyed Bond, there shall first be furnished to the Trustee for the benefit of the Issuer, the Trustee, 	 the Bank, the Company, and the Guarantor evidence of such loss, theft, or destruction, together with 	 an indemnity reasonably satisfactory to the Trustee to save each of them harmless from all risks 	 related thereto, however remote. If the Bond has matured, instead of issuing a duplicate Bond, the 	 Trustee may with the consent of the Company pay the Bond without requiring surrender of the Bond 	 and make such requirements as the Trustee deems fit for its protection, including a lost instrument 	 bond. The Issuer, the Company, the Guarantor, and the Trustee may charge their reasonable fees 	 and expenses in this connection. 	 	 	Section 2.09. Cancellation of Bonds. Whenever a Bond is delivered to the Trustee for 	 cancellation (upon payment, redemption, or otherwise), or for transfer, exchange, or replacement 	 pursuant to Section 2.07 or 2.08, the Trustee will promptly cancel the Bond and deliver the canceled 	 Bond or a certificate of destruction as appropriate to the Company at its request. Upon cancellation 	 of any tendered Bond by the Tender Agent, the Tender Agent shall forward the canceled Bond to 	 the Trustee. 	 	 	Section 2.10. Temporary Bonds. Until definitive Bonds are ready for delivery, the Issuer may 	 execute and the Trustee or the Tender Agent will authenticate temporary Bonds substantially in the 	 form of the definitive Bonds, with appropriate variations. The Issuer will, without unreasonable delay, 	 prepare and the Trustee or the Tender Agent will authenticate definitive Bonds in exchange for the 	 temporary Bonds. Such exchange shall be made by the Trustee or the Tender Agent without charge. 	 	 	Exchanges and transfers shall be made without charge to the Owners; provided that in each 	 case the Trustee shall require the payment by the Owner requesting exchange or transfer of any tax 	 or other governmental charge required to be paid with respect thereto. 	 	 	Section 2.11. Conditions Precedent to Authentication and Delivery of Bonds. Upon the 	 execution and delivery of this Indenture, one initial Bond (the "Initial Bond"), representing the 	 aggregate principal amount of the Bonds, payable to the initial purchaser(s), or its (their) designee(s), 	 executed with the manual or facsimile signatures of the President and Secretary of the Issuer, 	 approved by the Attorney General of the State, and registered and manually signed by the 	 Comptroller of Public Accounts of the State, will be delivered to the initial purchaser or its designee. 	 Upon payment for the Initial Bond, the Trustee shall cancel the Initial Bond and deliver to the 	 Securities Depository on behalf of the purchaser one registered definitive Bond for each year of 	 maturity of the Bonds, in the aggregate principal amount of all Bonds for such maturity, registered 	 in the name of Cede & Co., as nominee for DTC. Prior to and as a condition precedent to the 	 authentication and delivery of the Bonds there shall be filed with and delivered to the Trustee: 	 	 	(i)	a copy, duly certified by an authorized representative of the Issuer, of the 	 resolution adopted by the Issuer in accordance with the Act authorizing the execution and 	 delivery of this Indenture and the issuance of the Bonds; 	 	 	(ii)	original duly executed and delivered counterparts of this Indenture, the 	 Agreement, the Guaranty, and the Tax Agreement; 	 	 	(iii)	an opinion of Bond Counsel to the effect that Bonds executed, authenticated 	 and delivered as provided in this Indenture will be duly and validly issued and will constitute 	 valid and binding limited obligations of the Issuer; 	 	 	(iv)	the approving opinion of the Attorney General of the State; 	 		(v)	the approval of the Texas Department of Commerce; and 	 	 	(vi)	the duly executed and delivered Initial Letter of Credit. 	 	 	Section 2.12. Book-Entry System. (a) The Bonds shall be issued pursuant to a Book-Entry 	 System administered by the Securities Depository with no physical distribution of Bond certificates 	 to be made except as provided in this Section 2.12. Any provision of this Indenture or the Bonds 	 requiring physical delivery of the Bonds shall, with respect to any Bonds held under the Book-Entry 	 System, be deemed to be satisfied by a notation on the registration books maintained by the Trustee 	 that such Bonds are subject to the Book-Entry System. 	 	 	(b)	The Book-Entry System will be maintained by the Securities Depository and the 	 Participants and Indirect Participants and will evidence beneficial Ownership of the Bonds in 	 Authorized Denominations, with transfers of ownership effected on the records of the Securities 	 Depository, the Participants, and the Indirect Participants pursuant to rules and procedures 	 established by the Securities Depository, the Participants, and the Indirect Participants. The principal 	 of and any premium on each Bond shall be payable to the Securities Depository Nominee or any 	 other person appearing on the registration books maintained by the Trustee as the registered Owner 	 of such Bond or his registered assigns or legal representative at the principal office of the Trustee. 	 So long as the Book-Entry System is in effect, the Securities Depository will be recognized as the 	 Owner of the Bonds for all purposes. Transfer of principal, interest, and any premium payments or 	 notices to Participants and Indirect Participants will be the responsibility of the Securities Depository, 	 and transfer of principal, interest, and any premium payments or notices to Beneficial Owners will 	 be the responsibility of the Participants and the Indirect Participants. No other party will be 	 responsible or liable for such transfers of payments or notices or for maintaining, supervising, or 	 reviewing such records maintained by the Securities Depository, the Participants or the Indirect 	 Participants. While the Securities Depository Nominee or the Securities Depository, as the case may 	 be, is the registered Owner of the Bonds, notwithstanding any other provisions set forth herein, 	 payments of principal of, redemption premium, if any, and interest on the Bonds shall be made to 	 the Securities Depository Nominee or the Securities Depository, as the case may be, by wire transfer 	 in immediately available funds to the account of such Owner. Without notice to or the consent of 	 the Beneficial Owners, the Trustee, with the consent of the Company, and the Securities Depository 	 may agree in writing to make payments of principal, redemption price, or purchase price and interest 	 in a manner different from that set out herein. In such event, the Trustee shall make payments with 	 respect to the Bonds in such manner as if set forth herein. 	 	 	(c)	With the consent of the Remarketing Agent and the Issuer, the Company may at any 	 time elect (i) to provide for the replacement of any Securities Depository as the depository for the 	 Bonds with another qualified Securities Depository, or (ii) to discontinue the maintenance of the 	 Bonds under a Book-Entry System. In such event, the Trustee shall give 30 days" prior notice of such 	 election to the Securities Depository (or such fewer number of days as shall be acceptable to such 	 Securities Depository). 	 	 	(d)	Upon the discontinuance of the maintenance of the Bonds under a Book-Entry 	 System, the Trustee will cause Bonds to be issued directly to the Beneficial Owners of Bonds, or their 	 designees, as further described below. In such event, the Trustee shall make provisions to notify 	 Participants and the Beneficial Owners of the Bonds, by mailing an appropriate notice to the 	 Securities Depository, or by other means deemed appropriate by the Trustee in its discretion, that 	 Bonds will be directly issued to the Beneficial Owners of Bonds as of a date set forth in such notice, 	 which shall be a date at least 10 days after the date of mailing of such notice (or such fewer number 	 of days as shall be acceptable to the Securities Depository). 	 	 	(e)	In the event that Bonds are to be issued to the Beneficial Owners of the Bonds, or 	 their designees, the Trustee, at the expense of the Company, shall promptly have prepared Bonds in 	 certificated form registered in the names of the Beneficial Owners of Bonds shown on the records 	 of the Participants provided to the Trustee, as of the date set forth in the notice described above. 	 Bonds issued to the Beneficial Owners, or their designees, shall be in fully registered form 	 substantially in the form set forth in Exhibit A. 	 	 	(f)	If any Securities Depository is replaced as the depository for the Bonds with another 	 qualified Securities Depository, the Trustee, at the expense of the Company, will issue to the 	 replacement Securities Depository Bonds substantially in the form set forth in Exhibit A, registered 	 in the name of such replacement Securities Depository. 	 	 	(g)	The Issuer, the Company, the Tender Agent, the Remarketing Agent, and the Trustee 	 shall have no liability for the failure of any Securities Depository to perform its obligation to any 	 Participant, any Indirect Participant or any Beneficial Owner of any Bonds, and the Issuer, the 	 Company, the Tender Agent, the Remarketing Agent, or the Trustee shall not be liable for the 	 failure of any Participant, Indirect Participant, or other nominee of any Beneficial Owner of any 	 Bonds to perform any obligation that such Participant, Indirect Participant, or other nominee may 	 incur to any Beneficial Owner of the Bonds. 	 	 	(h)	Notwithstanding any other provision of this Indenture, on or prior to the date of 	 issuance of the Bonds the Trustee, the Company, and the Issuer shall have executed and delivered 	 to the initial Securities Depository a Letter of Representations governing various matters relating to 	 the Securities Depository and its activities pertaining to the Bonds. The terms and provisions of such 	 Letter of Representations are incorporated herein by reference and, in the event there shall exist any 	 inconsistency between the substantive provisions of the said Letter of Representations and any 	 provisions of this Indenture, then, for as long as the initial Securities Depository shall serve with 	 respect to the Bonds, the terms of the Letter of Representations shall govern. 	 	 	 Article III 	 Redemption of Bonds; Purchase and Remarketing of Bonds 	 	 	Section 3.01. Optional Redemption. The Bonds shall be subject to optional redemption only 	 as follows: 	 	 	(a)	Weekly Rate Mode, CP Rate Mode, or Daily Rate Mode. While the Bonds are in 	 the Weekly Rate Mode or the Daily Rate Mode, the Bonds shall be subject to optional redemption, 	 in whole or in part on any Business Day, and while the Bonds are in the CP Rate Mode the Bonds 	 shall be subject to optional redemption in whole or in part on any Interest Payment Date, in all cases 	 at the direction of the Company and with the Bank's consent if required by the Reimbursement 	 Agreement, upon at least 40 days" prior written notice from the Company to the Trustee, the Bank, 	 and the Remarketing Agent, at a redemption price equal to 100% of the aggregate principal amount 	 of the Bonds to be redeemed, plus accrued interest thereon to the redemption date, without 	 premium. 	 	 	(b)	Adjustable Rate Mode. While the Bonds are in the Adjustable Rate Mode, the Bonds 	 shall be subject to optional redemption, after the dates specified in the table below, in whole or in 	 part on any date at the direction of the Company and with the Bank's consent if required by the 	 Reimbursement Agreement, upon at least 40 days" prior written notice from the Company to the 	 Trustee, the Bank, and the Remarketing Agent, at the applicable redemption price (expressed as a 	 percentage of the principal amount to be redeemed) set forth below, plus accrued interest thereon 	 to the date of redemption: 	 	 Length of Currently Applicable Adjustable	Dates After Which Redemption Is 	 Rate Period (expressed in whole years)	Allowed and Redemption Prices* 	 	 greater than 10 	after 10 years at 102%, declining by 1% 	 	annually to 100% 	 	 less than or equal to 10 and greater than 7 	after 5 years at 102%, declining by 1% 	 	annually to 100% 	 	 less than or equal to 7 and greater than 4 	after 3 years at 102%, declining by 1% 	 	annually to 100% 	 	 less than or equal to 4 and greater than 2 	after 2 years at 102%, declining by 1% 	 	annually to 100% 	 	 less than or equal to 2 	not callable [FN]	 	 *measured from the start of the currently applicable Adjustable Rate Period 	 	 	The payment of any premium upon the optional redemption of Bonds shall be made solely 	 from Available Moneys. 	 	 	Notwithstanding the foregoing, the Bonds when in an Adjustable Rate Period may be subject 	 to optional redemption upon terms different than those set forth above if the Company delivers to 	 the Trustee on or before the first day of such Adjustable Rate Period a certificate specifying different 	 optional redemption dates or prices to be in effect during such period (or that the Bonds will not be 	 subject to optional redemption during such Period) and an opinion of Bond Counsel to the effect that 	 the adoption of such optional redemption provisions would not adversely affect the exclusion of 	 interest on the Bonds from the federal gross income of the Owners thereof. 	 	 	(c)	Purchase in Lieu of Optional Redemption. The Company shall have the option to 	 cause the Bonds to be subject to mandatory tender and purchase pursuant to Section 2.04 hereof in 	 lieu of an optional redemption of Bonds pursuant to Section 3.01(a) or (b) above. Such option may 	 be exercised by delivery by the Company to the Trustee and Remarketing Agent on or prior to the 	 Business Day preceding the optional redemption date of a written notice specifying that the Bonds 	 shall not be redeemed, but instead shall be subject to mandatory tender and purchase pursuant to 	 Section 2.04 hereof. Upon delivery of such notice, the Bonds shall not be redeemed but shall instead 	 be subject to mandatory tender pursuant to Section 2.04 hereof at a tender price equal to the price 	 at which the Bonds would have been redeemed on the date which would have been the optional 	 redemption date. 	 	 	Section 3.02. Extraordinary Optional Redemption. While the Bonds are in the Adjustable 	 Rate Mode or the CP Rate Mode, the Bonds are subject to extraordinary redemption in whole on 	 any date at a redemption price equal to the principal amount of outstanding Bonds plus accrued 	 interest to the redemption date, without premium, upon the exercise by the Company of its option 	 to cause the Bonds to be redeemed as a result of the occurrence of any of the events described 	 below: 	 	 	(1)	the Project has been damaged or destroyed to such an extent that, in the judgment of 	 the Company, (i) it cannot be reasonably restored to substantially the condition thereof immediately 	 preceding such damage or destruction, (ii) the Company is thereby prevented from carrying on normal 	 operations at the Project for a period of nine or more consecutive months following such damage or 	 destruction, or (iii) it would not be economically feasible for the Company to replace, repair, rebuild, 	 or restore the same; 	 	 	(2)	title in and to, or the temporary use of, all or substantially all of the Project has been 	 taken under the exercise of the power of eminent domain (or sold in lieu of such a taking) by any 	 governmental authority, or person acting under governmental authority and such a taking or sale, in 	 the judgment of the Company, may result in the Company being prevented thereby from carrying on 	 normal operations at the Project for a period of nine or more consecutive months; or 	 	 	(3)	as a result of any changes in the Constitution of the State or the Constitution of the 	 United States of America or by legislative or administrative action (whether State or federal) or by 	 final decree, judgment, decision, or order of any court or administrative body (whether State or 	 federal), the Agreement has become void or unenforceable or impossible of performance in 	 accordance with the intent and purposes of the parties as expressed therein. 	 	 	To exercise its option to effect an extraordinary optional redemption, the Company must 	 deliver to the Trustee written notice of the occurrence of any such event and of its election to cause 	 the Bonds to be redeemed as a result thereof. Such notice shall specify the redemption date which 	 shall be at least 40 days after the date of delivery of such notice to the Trustee. 	 	 	Section 3.03. Mandatory Redemption. The Bonds are subject to mandatory redemption in 	 whole on the earliest redemption date for which timely notice of redemption can be given by the 	 Trustee after the occurrence of a Determination of Taxability at a redemption price equal to the 	 aggregate outstanding principal amount of the Bonds plus accrued interest thereon to the redemption 	 date, without premium. The foregoing amount shall constitute the total amount required to be paid 	 to the Owners as a result of the occurrence of a Determination of Taxability. 	 	 	Section 3.04. Notice of Redemption. (a) At least 30 days prior to the date of any redemption 	 of the Bonds, the Trustee shall cause notice of the call for redemption to be sent by first class mail, 	 postage prepaid, to the Tender Agent, the Bank, the Remarketing Agent, the Company, the 	 Guarantor, and the Owner of each Bond to be redeemed. In addition, such notice shall also be given 	 (at least two Business Days before the redemption notice described in the preceding sentence) by 	 registered, certified, or overnight mail, to all registered securities depositories then in the business 	 of holding substantial amounts of obligations of types comprising the Bonds and to one or more 	 national information services that disseminate notices of redemption of obligations such as the Bonds. 	 Neither the failure to give any such notice nor any defect in any notice so mailed shall affect the 	 sufficiency or the validity of any proceedings for the redemption of the Bonds. 	 	 	(b)	The redemption notice shall identify the Bonds or portions thereof to be redeemed and 	 shall state (l) the date of such notice and the redemption date, (2) the redemption price, (3) the 	 original date of execution and delivery of the Bonds to be redeemed, (4) the rate of interest borne 	 by the Bonds to be redeemed, (5) the date of maturity of the Bonds, (6) the numbers and CUSIP 	 numbers of the Bonds to be redeemed, (7) that the redemption price of any Bond payable only upon 	 the surrender of the Bond to be Trustee at its corporate trust office, (8) the address at which the 	 Bonds must be surrendered, (9) that interest on the Bonds called for redemption ceases to accrue 	 on the redemption date provided that on such date Available Moneys are on deposit in the Bond 	 Fund sufficient to pay the redemption price of the Bonds in full, and (10) such additional descriptive 	 information identifying the Bonds to be redeemed, including their interest rate and stated maturity 	 date as may be deemed appropriate by the Trustee to effect the redemption. 	 	 	Any notice of optional redemption shall also state that the Company may elect that the Bonds 	 be subject to mandatory tender and purchase in lieu of optional redemption at a tender price equal 	 to the redemption price. Any notice of optional redemption may also state (and shall state, if the 	 Company shall so direct) that the redemption is conditioned on receipt of monies for such 	 redemption by the Trustee on or prior to the redemption date; if such moneys are not received, the 	 redemption of the Bonds for which notice was given shall not be made. 	 	 	Section 3.05. Effect of Availability of Redemption Prices. If on any redemption date Available 	 Moneys sufficient to pay in full the redemption price of the Bonds called for redemption have been 	 deposited with the Trustee and shall be available to be utilized to pay the redemption price of such 	 Bonds, such Bonds shall no longer be secured by or be deemed to be Outstanding under the 	 provisions of this Indenture. Interest shall not continue to accrue on such Bonds after the redemption 	 date. If Available Moneys shall not be on deposit on the redemption date, such Bonds or portions 	 thereof shall continue to bear interest until paid at the same rate as they would have borne had they 	 not been called for redemption. 	 	 	Section 3.06. Partial Redemption. (a) Any partial redemption of Bonds shall be made only 	 in Authorized Denominations. If fewer than all of the Bonds shall be called for redemption, the 	 portion of Bonds to be redeemed shall be selected by lot by the Trustee from among all Outstanding 	 Bonds; provided that the Trustee shall first select Pledged Bonds and Company Bonds for 	 redemption. Each Bond shall be considered separate Bonds in Authorized Denominations for 	 purposes of selecting the Bonds to be redeemed. Subject to the provisions of the Bonds with respect 	 to the Book-Entry System, if any Bond shall be called for redemption only in part, then the Owner 	 of such Bond, upon surrender of such Bond to the Trustee for payment, shall be entitled to receive 	 a new Bond or Bonds in the aggregate principal amount of the unredeemed balance of the principal 	 amount of such Bond, without charge therefor. 	 	 	(b)	If the Owner of any Bond which is called for redemption only in part shall fail to 	 present such Bond to the Trustee for payment and exchange as aforesaid, such Bond shall, 	 nevertheless, become due and payable on the date fixed for redemption, to the extent called for 	 redemption (and to that extent only) and to such extent such Bond shall no longer be deemed to be 	 Outstanding for purposes of this Indenture. 	 	 	(c)	Notwithstanding the foregoing, if the Bonds are held in the Book-Entry System at the 	 time of a partial redemption of the Bonds, beneficial Ownership interests in the series of Bonds shall 	 be selected for redemption in accordance with the rules and procedures established by the Securities 	 Depository. 	 	 	Section 3.07. Purchase of Tendered Bonds. (a) In performing their duties hereunder, the 	 Tender Agent and the Remarketing Agent shall act as an agent of the persons to whom purchased 	 Bonds are to be delivered pursuant to Section 3.10, of persons tendering such Bonds and of the 	 Company and shall not be considered to be purchasing Bonds for their own account and, in the 	 absence of written notification from the Trustee to the contrary, shall be entitled to assume that any 	 Bond tendered or deemed tendered to the Remarketing Agent or the Tender Agent for purchase 	 is entitled under the Indenture to be so purchased. No acceptance of Bonds by the Tender Agent 	 hereunder shall effect any merger or discharge of the indebtedness of the Issuer evidenced by the 	 Bonds. The Tender Agent and the Remarketing Agent shall accept all Bonds properly tendered for 	 purchase in accordance with the provisions of the Bonds and as set forth in this Indenture. 	 	 	(b)	During any period that no Book-Entry System for the Bonds is in effect, a Tender 	 Agent shall be appointed as provided in Section 7.11 hereof. Immediately upon the effectiveness of 	 such appointment, the Tender Agent shall establish a special trust fund designated as the "Grapevine 	 Industrial Development Corporation Industrial Development Revenue Bonds (Trencor Jetco, Inc. 	 Project), Series 1994--Purchase Fund" (the "Purchase Fund"). The Tender Agent shall hold all Bonds 	 delivered to it in trust for the exclusive benefit of the respective Owners of Bonds tendering such 	 Bonds for sale until moneys representing the purchase price of such Bonds have been delivered to 	 or for the account of such Owners of Bonds. The Tender Agent shall hold all moneys delivered to 	 it for the purchase of Bonds in the Purchase Fund in trust, solely for the benefit of the persons 	 delivering such moneys until the Bonds purchased with such moneys have been delivered to or for 	 the account of such persons and thereafter solely for the benefit of the persons entitled to such 	 moneys. Moneys held in the Purchase Fund shall not be invested. The Issuer and the Trustee hereby 	 authorize and direct the Tender Agent to withdraw sufficient funds from the Purchase Fund to pay 	 the purchase price of tendered Bonds as the same becomes due and payable, which authorization and 	 direction the Tender Agent accepts. 	 	 	(c)	During any period the Bonds are held in a Book- Entry System, the purchase price of 	 tendered Bonds, (i) if derived from the source described in Section 3.09(a), shall be paid on the 	 tender date by the Remarketing Agent from moneys received from the purchaser of the remarketed 	 Bonds, (ii) if derived from either the source described in Section 3.09(b) or 3.09(c) shall be paid on 	 the tender date by the Trustee from moneys drawn on the Letter of Credit or received from the 	 Company, as the case may be, and (iii) moneys paid by the Guarantor pursuant to Section 2.1(c) of 	 the Guaranty. 	 	 	Section 3.08. Remarketing of Tendered Bonds; Payment of Purchase Price. (a) The 	 Remarketing Agent shall use its best efforts to remarket tendered Bonds of which it has received 	 notice of tender from the Tender Agent (or Beneficial Owners, as the case may be), at a price equal 	 to 100% of the principal amount thereof plus, accrued interest to the purchase date. Such 	 remarketing shall be made in accordance with, and subject to the conditions of, the provisions of the 	 Remarketing Agreement. Bonds which have been duly tendered for purchase and which have not 	 been remarketed shall be purchased on the tender date with the proceeds of an appropriate draw 	 under the Letter of Credit; provided, however, (i) during any period the Bonds are not secured by 	 a Letter of Credit, or (ii) if the Bank shall fail to honor a draw on the Letter of Credit to provide 	 for the purchase price of tendered Bonds, then such Bonds will be purchased by the Company on the 	 tender date. 	 	 	(b)	Upon receipt of a duly tendered written notice of an optional tender of Bonds, the 	 Tender Agent shall notify the Remarketing Agent, the Company, the Guarantor, and the Trustee of 	 the principal amount of Bonds tendered and the date fixed for purchase of the tendered Bonds. 	 During any period the Bonds are in the Book-Entry System, such notice will be given by the 	 Remarketing Agent to the Company and the Trustee. 	 	 	(c)	Prior to 4:00 p.m. on the Business Day which immediately precedes the purchase date 	 for any Bonds (or, in the case of Bonds in the Daily Rate Mode, prior to 11:30 a.m. on the purchase 	 date of such Bonds), the Remarketing Agent shall give notice to the Tender Agent, the Company, 	 the Guarantor, and the Trustee of the principal amount of such Bonds which have been remarketed, 	 the names, addresses, and taxpayer identification numbers of the purchasers of such Bonds and the 	 denominations in which the Bonds are to be purchased by and delivered to each purchaser. If less 	 than all of the Bonds to be tendered on such purchase date have been remarketed, the Remarketing 	 Agent shall, in addition, notify the Trustee, the Tender Agent, the Guarantor, and the Company prior 	 to 10:30 a.m. (or, in the case of Bonds in the Daily Rate Mode, 11:30 a.m.) on the purchase date of 	 the principal amount of Bonds which have not been remarketed and the amount of accrued interest 	 to be paid on such Bonds on such purchase date. Purchasers of Bonds which have been remarketed 	 shall be required to deliver the purchase price thereof directly to the Tender Agent for deposit in 	 the Purchase Fund (or, during any period the Bonds are in the Book-Entry System, such moneys shall 	 be transferred to the account of the Remarketing Agent on the records of the Securities Depository) 	 not later than 10:30 a.m. (or, in the case of Bonds in the Daily Rate Mode, 11:30 a.m.), on the 	 purchase date. By 11:30 a.m., on the purchase date, the Tender Agent shall notify (promptly 	 confirmed in writing) the Trustee, the Remarketing Agent, the Company, the Guarantor, and the 	 Bank of the amount of remarketing proceeds which have been deposited. During any period the 	 Bonds are in the Book-Entry System, such notice shall be given by the Remarketing Agent. 	 	 	(d)	Prior to 12:00 noon, on any purchase date (whether optional or mandatory), the Trustee 	 shall draw upon the Letter of Credit, in an amount equal to the purchase price of all Bonds to be 	 purchased on such purchase date, less the amount of remarketing proceeds of which the Trustee has 	 notice were deposited with the Tender Agent (or the Remarketing Agent during any period the 	 Bonds are in the Book-Entry System) by 11:30 a.m., on such date. In the event of a draw on the 	 Letter of Credit upon a mandatory tender due to a substitution of an Alternate Credit Facility, the 	 draw shall be made upon the Letter of Credit being replaced. If the Bonds are not then secured by 	 a Letter of Credit, by 1:30 p.m. on the purchase date for any Bonds, the Tender Agent (or the 	 Trustee during any period the Bonds are in the Book-Entry System) shall receive from the Company, 	 pursuant to Section 5.1(b) of the Agreement, an amount equal to the purchase price of all Bonds to 	 be purchased on such date, less the amount of remarketing proceeds of which the Trustee has notice 	 were on deposit with the Tender Agent or the Remarketing Agent, as the case may be, by 11:30 a.m. 	 on such date. No draw on the Letter of Credit shall be made with respect to Pledged Bonds or 	 Company Bonds. 	 	 	(e)	The Trustee shall, to the extent it has drawn moneys under the Letter of Credit for the 	 purchase of Bonds, authorize direct payment by the Bank to the Tender Agent (or, during any period 	 the Bonds are in the Book-Entry System, to the payee specified by the Securities Depository) of the 	 moneys so drawn. 	 	 	(f)	Notices pursuant to this Section shall be by telephone, tested telecopy (receipt 	 confirmed by telephone), telefacsimile transmittal, or telegram, promptly confirmed in writing, except 	 that any drawing under the Letter of Credit shall be in accordance with the terms thereof. 	 	 	(g)	Anything in this Indenture to the contrary notwithstanding, there shall be no obligation 	 on the part of the Remarketing Agent to remarket Bonds (i) if there shall have occurred and be 	 continuing an Event of Default under this Indenture or a Determination of Taxability, or (ii) which 	 are subject to mandatory tender hereunder, except as the Remarketing Agent and the Company have 	 otherwise agreed in the Offering Agreement. 	 	 	(h)	Any Bond optionally tendered for purchase after the date on which such Bond has been 	 selected for redemption or the Trustee has notified the Owners of pendency of a conversion of the 	 interest rate Mode of the Bonds shall not be remarketed unless the purchaser has been notified by 	 the Trustee of the redemption or the interest rate Mode conversion, as appropriate. Any purchaser 	 so notified must deliver a notice to the Trustee and the Tender Agent (or, during any period the 	 Bonds are in the Book-Entry System, to the Remarketing Agent) stating that such purchaser is aware 	 of the pendency of the redemption or of the interest rate Mode conversion, as appropriate, and 	 agreeing not to resell the Bonds prior to the date of such redemption or conversion, as the case may 	 be. 	 	 	Section 3.09. Funds for Purchase Price of Bonds. On the date Bonds are to be purchased 	 pursuant to the optional or mandatory tender provisions of this Indenture, the Tender Agent shall 	 deliver the purchase price to the tendering Owner (or, if the Bonds are in a Book-Entry System, the 	 Remarketing Agent or the Trustee, as appropriate, shall deliver the purchase price to the appropriate 	 payee on the records of the Securities Depository), but only from the funds listed below, in the order 	 of priority indicated: 	 	 	(a)	the proceeds of the sale of such Bonds which have been remarketed by the 	 Remarketing Agent to any person other than the Company, the Guarantor, or the Issuer (or any 	 "insider" of the Company, the Guarantor, or the Issuer within the meaning of the Bankruptcy Code) 	 which have been delivered to the Tender Agent or the Remarketing Agent by 11:30 a.m., on the 	 purchase date; 	 	 	(b)	moneys drawn under the Letter of Credit; 	 	 	(c)	moneys deposited by the Company with the Trustee pursuant to the Agreement; and 	 	 	(d)	moneys paid by the Guarantor pursuant to Section 2.1(c) of the Guaranty. 	 	 	Section 3.10. Delivery of Purchased Bonds. The Tender Agent shall make available by 4:00 	 p.m. on the purchase date of any tendered Bonds (whether such tender was optional or mandatory), 	 at its principal office in New York City, Bonds which have been purchased with moneys described 	 in Section 3.09(a) for receipt by the purchaser thereof, which Bonds shall be authenticated by the 	 Tender Agent. Bonds purchased with moneys described in Section 3.09(a) shall be registered in the 	 manner directed by the Remarketing Agent and delivered to the Remarketing Agent for redelivery 	 to the purchasers thereof. Bonds purchased with moneys described in Section 3.09(b) shall be 	 delivered by the Tender Agent to the Trustee, and registered by the Trustee in the name of the 	 Company indicating their status as Pledged Bonds (or if the Bonds are held in the Book-Entry 	 System, such Bonds shall be recorded in the books of the Securities Depository for the account of 	 the Trustee and shall be deemed to be pledged to the Bank). Bonds purchased with moneys 	 described in Section 3.09(c) shall be registered in the name of the Company and delivered to the 	 Company. Bonds, purchased with moneys described in Section 3.09(d) hereof shall be registered in 	 the name of the Guarantor and delivered to the Guarantor. 	 	 	Notwithstanding anything herein to the contrary, so long as the Bonds are held under the 	 Book-Entry System, Bonds will not be delivered as set forth in the preceding paragraph; rather, 	 transfers of beneficial ownership of the Bonds to the persons indicated above will be effected 	 pursuant to its rules and procedures established by the Securities Depository. 	 	 	Section 3.11. Pledged Bonds. If any Bond is purchased pursuant to Section 3.07 hereof with 	 moneys drawn under the Letter of Credit pursuant to Section 3.09(b) hereof, if no Book-Entry 	 System is then in effect, that Bond shall be delivered to and held by the Trustee, registered in the 	 name of the Company and shall constitute a Pledged Bond until released as herein provided. A 	 Pledged Bond so held by the Trustee shall be released only upon receipt by the Trustee or the Bank 	 of an amount equal to the principal amount thereof plus accrued interest, if any, thereon to the date 	 of purchase and receipt by the Trustee of written confirmation of the reinstatement of the amounts 	 available to be drawn under the Letter of Credit to cover the full principal amount of all Outstanding 	 Bonds, plus Adequate Interest Coverage. If a Book-Entry System is then in effect, Bonds purchased 	 with Letter of Credit proceeds pursuant to Section 3.09(b) hereof shall be reflected on the records 	 of the Securities Depository as being held for the account of the Trustee, and the Trustee agrees that 	 it shall hold such Bonds solely for the benefit of the Bank. While a Book-Entry System is in effect, 	 the Trustee shall cause the release of such Bonds from its account on the records of the Securities 	 Depository only under the conditions for release of Pledged Bonds previously set forth in this 	 paragraph. 	 	 	During the Daily Rate Period, CP Rate Period, and the Weekly Rate Period, the Remarketing 	 Agent shall use its best efforts to remarket Pledged Bonds in accordance with the provisions of the 	 Offering Agreement. If the Remarketing Agent remarkets any Pledged Bond, the Remarketing 	 Agent shall give the notice described in the first sentence of Section 3.08(c) hereof, and shall direct 	 the purchaser of such Pledged Bond to transfer, by 10:00 a.m. (or, in the case of Bonds in the Daily 	 Rate Mode, 11:30 a.m.) on the purchase date, the purchase price of such remarketed Pledged Bond 	 to the Bank, with notice thereof to the Company and the Trustee. The Remarketing Agent shall 	 deliver remarketed Pledged Bonds to the purchasers thereof in accordance with Section 3.10 hereof. 	 	 	On each Interest Payment Date prior to the release of Pledged Bonds, the Trustee shall apply 	 moneys in the Non-Available Moneys Account of the Bond Fund to the payment of principal of and 	 interest on such Pledged Bonds, but shall not draw on the Letter of Credit or use moneys in the 	 Letter of Credit Account of the Bond Fund for such purpose to any extent whatsoever; and the 	 Trustee shall receive for the account of the Bank the interest and principal paid in respect of such 	 Pledged Bonds, and immediately upon such receipt the Trustee shall pay such interest and principal 	 over to the Bank pursuant to written wire transfer instructions acceptable to the Trustee; provided, 	 however, that if at such time the Trustee has been notified in writing by the Bank that there shall 	 not remain any amount owed to the Bank under the Reimbursement Agreement, such interest and 	 principal payments shall be paid over to the Company. 	 	 	It is recognized and agreed by the Trustee that while it holds Pledged Bonds, such Pledged 	 Bonds are held by the Trustee for the benefit of the Bank as a first priority secured creditor. 	 	 	Notwithstanding anything herein to the contrary, so long as the Bonds are held under the 	 Book-Entry System, Pledged Bonds shall not be delivered to and held by the Trustee; rather transfers 	 of beneficial Ownership of Bonds to the persons indicated above will be effected pursuant to the 	 rules and procedures established by the Securities Depository. 	 	 	 Article IV 	 General Provisions 	 	 	Section 4.01. Payment of Principal, Premium, if any, and Interest. The Issuer covenants that 	 it will duly and punctually pay or cause to be paid the principal of, premium, if any, and interest on 	 the Bonds issued under this Indenture at the place, on the dates, and in the manner provided herein 	 and therein according to the true intent and meaning hereof and thereof, but solely from the 	 payments, revenues, and receipts specifically assigned herein for such purposes as set forth in 	 Section 5.01 of this Indenture. 	 	 	Section 4.02. Instruments of Further Assurance. (a) The Issuer covenants that it will, at the 	 expense of the Company, execute and deliver such indentures supplemental hereto and such further 	 acts, instruments, and transfers as the Trustee or the Bank reasonably may require for the better and 	 more effectual assignment to the Trustee of all payments, revenues, and other amounts payable under 	 or with respect to the Agreement, the Letter of Credit, and any other income and other moneys 	 assigned hereby to the payment of the principal of, premium, if any, and interest on the Bonds. The 	 Issuer further covenants that it will not create or, to its knowledge, suffer to be created any lien, 	 encumbrance, or charge upon its interest in the revenues and other amounts payable under or with 	 respect to the Trust Estate, except the lien and charge granted hereby. 	 	 	(b)	The Trustee agrees that it will, at the expense of the Company pursuant to the 	 Agreement, cause the Company to record and file financing statements and all supplements thereto, 	 and such other instruments (including, but not limited to, continuation statements) as may be required 	 from time to time by the Issuer, the Bank, the Guarantor, or the Company to be recorded or filed, 	 in such manner and at such places as from time to time may be required by law in order fully to 	 preserve and protect the security of the Owners of the Bonds and the Bank, and the rights of the 	 Trustee hereunder. 	 	 	Section 4.03. Tax-Exempt Status of Bonds. The Issuer and the Trustee each covenant to 	 commit or suffer no act within their control that would alter the status or character of the Bonds, or 	 the interest to be paid on the Bonds, for purposes of Federal income taxation. The provisions of this 	 Section shall apply to the Trustee only to the extent that the Trustee is acting hereunder in its sole 	 discretion. Toward that end, the Issuer and the Trustee agree that they will comply with and take 	 all actions required by the Tax Agreement. 	 	 	Section 4.04. Books, Records and Accounts. The Trustee agrees to keep proper books for 	 the registration of, and transfer of Ownership of, each Bond, and proper books, records, and accounts 	 in which complete and correct entries shall be made of all transactions relating to the receipt, 	 disbursement, investment, allocation, and application of the proceeds received from the sale of the 	 Bonds, the revenues received from the Agreement, the documents executed by the Company in 	 connection therewith, the Letter of Credit, the funds and accounts created pursuant to this Indenture, 	 and all other moneys held by the Trustee under. The Trustee shall, during regular business hours 	 and upon reasonable prior written notice, make such books, records, and accounts available for 	 inspection by the Issuer, the Company, the Bank, and the Guarantor. The Trustee shall also make 	 such books, records, and account available for inspection by the Bond Owners, but subject to the 	 following limitations: 	 	 	(a)	the Bond Owner provides the Trustee with at least five (5) Business Days' prior written 	 notice of the proposed inspection; 	 	 	(b)	such notice specifies what the Bond Owner wishes to inspect and when the inspection 	 is to take place; 	 	 	(c)	no documents other than those executed on the Closing Date in connection with the 	 issuance and sale of the Bonds or documents which have been recorded or otherwise made a part 	 of a public record will be made available for inspection; 	 	 	(d)	the Bond Owner provides evidence satisfactory to the Trustee of registered or beneficial 	 ownership of Bonds; 	 	 	(e)	the scope of the proposed inspection is reasonably satisfactory to the Trustee; and 	 	 	(f)	no copies of documents are made of the Trustee's records, other than a copy of the 	 Indenture which will be made available at the Bond Owner's expense. 	 	 	Section 4.05. Notice to Rating Agencies. The Trustee shall provide each Rating Agency then 	 rating the Bonds, if the Bonds are then rated, with prompt written notice following the effective date 	 of (a) the appointment of any successor Trustee, Tender Agent, or Remarketing Agent, (b) any 	 change in the identity of any Bank, (c) any supplements or amendments to this Indenture or the 	 Agreement, (d) the termination, expiration, extension, substitution, or amendment of the Letter of 	 Credit, (e) the payment in full of all of the Bonds, or (f) any mandatory tender of the Bonds (which 	 notice shall be given at least 25 days prior to the mandatory tender date). Each notice to the Rating 	 Agencies hereunder shall be directed to the respective addresses provided by the Rating Agencies. 	 	 	 Article V 	 Revenues and Funds; Letter of Credit 	 	 	Section 5.01. Application of Original Proceeds of Bonds. There is hereby created and 	 established with the Trustee a trust fund in the name of the Issuer to be designated the "Grapevine 	 Industrial Development Corporation Industrial Development Revenue Bonds (Trencor Jetco, Inc. 	 Project) Series 1994"Bond Proceeds Fund" (the "Bond Proceeds Fund"). The Bond Proceeds Fund 	 shall have a Project Account and a Cost of Issuance Account. The proceeds of the sale of the Bonds 	 upon initial issuance thereof shall be deposited by the Trustee on the Closing Date in the Accounts 	 in the Bond Proceeds Fund as directed by a certificate of the Company. Moneys held in the Costs 	 of Issuance Account shall be disbursed as set forth in such certificate of the Company. Moneys held 	 in the Project Account shall be disbursed pursuant to Requisitions, a form of which is set forth at 	 Section 5.11 hereof. Moneys, if any, remaining in the Bond Proceeds Fund on the Completion Date 	 and any moneys in the Bond Proceeds Fund on the date the Company prepays all amounts, payable 	 under Section 5.1(a) of the Agreement shall be transferred on such date to the Available Moneys 	 Account of the Bond Fund to be applied as provided in Section 5.02 hereof. 	 	 	Section 5.02. Bond Fund. There is hereby created by the Issuer and ordered established with 	 the Trustee a trust fund to be designated the "Grapevine Industrial Development Corporation 	 Industrial Development Revenue Bonds (Trencor Jetco, Inc. Project), Series 1994"Bond Fund" (the 	 "Bond Fund"). Within the Bond Fund there are hereby created by the Issuer and ordered 	 established with the Trustee three separate and segregated trust accounts to be designated, 	 respectively, (a) the "Available Moneys Account," (b) the "Non- Available Moneys Account", and (c) 	 the "Letter of Credit Account". 	 	 	There shall be deposited into the Bond Fund when received: (a) all payments specified in 	 Section 5.1 of the Agreement or Section 2.1(a) or (b) of the Guaranty; (b) all moneys required to 	 be so deposited in connection with any redemption of Bonds; (c) all moneys drawn by the Trustee 	 under the Letter of Credit to pay interest, premium, if any, principal or the redemption price of any 	 Bonds; (d) any amounts directed to be transferred into the Bond Fund pursuant to any provision of 	 this Indenture; and (e) all other moneys when received by the Trustee which are required to be 	 deposited into the Bond Fund or which are accompanied by directions that such moneys are to be 	 paid into the Bond Fund. Any amounts paid to the Trustee which do not constitute Available 	 Moneys shall be held in the Non-Available Moneys Account and shall not be commingled with any 	 other moneys held by the Trustee. At such time as moneys in the Non-Available Moneys Account 	 shall constitute Available Moneys, they shall be transferred to the Available Moneys Account. Any 	 amounts drawn under the Letter of Credit shall be held in the Letter of Credit Account and shall 	 not be commingled with any other moneys held by the Trustee. Any amounts received for deposit 	 in the Bond Fund which constitute Available Moneys (other than amounts drawn under the Letter 	 of Credit), and any amounts deposited in the Non-Available Moneys Account which at a later date 	 become Available Moneys, shall be held in the Available Moneys Account and shall not be 	 commingled with any other moneys held by the Trustee. 	 	 	Section 5.03. Letter of Credit; Alternate Credit Facility. (a) Initial Letter of Credit. The 	 Initial Letter of Credit shall be delivered to the Trustee simultaneously with the original issuance and 	 delivery of the Bonds. 	 	 	(b)	Alternate Credit Facility. The Company may at any time substitute an Alternate Credit 	 Facility for an existing Letter of Credit, subject to the limitations set forth in this Article V. An 	 Alternate Credit Facility shall be an irrevocable letter of credit, bank bond purchase agreement, bond 	 insurance policy, revolving credit agreement, surety bond, or other agreement or instrument under 	 which any person or entity (other than the Issuer or the Company) undertakes to make or provide 	 funds to make payments of the principal and purchase price of, and interest on, the Bonds, as and 	 when due, provided that the Alternate Credit Facility must be effective as of a date on or prior to 	 the date of expiration of the then existing Letter of Credit and must provide coverage in an amount 	 at least equal to the sum of (A) the aggregate principal amount of Bonds (other than Pledged Bonds 	 or Company Bonds) at the time Outstanding, plus (B) Adequate Interest Coverage. 	 	 	Pursuant to Section 2.04 of this Indenture, if an Alternate Credit Facility is furnished, the 	 Bonds shall be subject to mandatory tender unless the Company furnishes the Trustee by the 25th 	 day prior to the scheduled Letter of Credit expiration or termination date written evidence from each 	 Rating Agency having a rating in effect for the Bonds that the Rating Agency has reviewed the 	 proposed Alternate Credit Facility and that its replacement of the current Letter of Credit will not 	 by itself result in a withdrawal or reduction of the Rating Agency"s current rating for the Bonds (a 	 "Maintenance of Rating"). Notwithstanding the foregoing, when the Bonds are in the CP Rate Mode 	 or an Adjustable Rate Mode, an existing Letter of Credit may not be replaced prior to the expiration 	 date of the then applicable Rate Period with an Alternate Credit Facility unless either (a) the Trustee 	 is furnished with evidence of a Maintenance of Rating by the date described above (in which case 	 the Bonds will not be subject to mandatory tender as a result thereof) or (b) in the event evidence 	 of Maintenance of Rating is not received, the substitution occurs on a date on or after which the 	 Bonds may be optionally redeemed pursuant to the Indenture and the mandatory tender price 	 payable upon the mandatory tender of Bonds as a result of such substitution includes a premium 	 equal to the redemption premium at that time payable pursuant to the optional redemption provisions 	 of this Indenture. 	 	 	The Company shall notify the Trustee of its intention to deliver an Alternate Credit Facility 	 at least 25 days prior to the date of such delivery. Upon receipt of such notice, the Trustee will 	 promptly mail a notice of the anticipated delivery of the Alternate Credit Facility by first class mail 	 to the Issuer, the Remarketing Agent, and each Owner at the Owner"s registered address. 	 	 	On or prior to the delivery of any Alternate Credit Facility to the Trustee, the Company shall 	 furnish to the Trustee (i) a written opinion of counsel acceptable to the Trustee stating that delivery 	 of such Alternate Credit Facility to the Trustee is authorized under the Agreement and the 	 Indenture, and complies with the terms hereof and thereof, and (ii) an opinion of counsel to the 	 issuer of such Alternate Credit Facility to the effect that the Alternate Credit Facility is a valid and 	 binding obligation of the issuer thereof, enforceable in accordance with its terms, subject to usual 	 exceptions relating to bankruptcy and insolvency. In addition, if the Alternate Credit Facility is issued 	 in connection with a conversion of the interest rate Mode on the Bonds or if the Company grants 	 a security interest in any cash, securities, or investment type property to the issuer or provider of the 	 Alternate Credit Facility, the Company must furnish the Trustee an opinion of Bond Counsel stating 	 that such grant will not adversely affect the exemption of interest on the Bonds from Federal income 	 taxation. 	 	 	(c)	Surrender of Letter of Credit. If at any time there shall have been delivered to the 	 Trustee an Alternate Credit Facility, together with the other documents and opinions required by this 	 Article V, then the Trustee shall accept such Alternate Credit Facility and promptly surrender the 	 previously held Letter of Credit to the issuer thereof, in accordance with the terms thereof for 	 cancellation. If at any time there shall cease to be any Bonds Outstanding under this Indenture, or 	 the Bonds are deemed paid under Section 10.01 of this Indenture, or if the Letter of Credit expires 	 in accordance with its terms, the Trustee shall promptly surrender the Letter of Credit to the issuer 	 thereof, in accordance with the terms thereof, for cancellation. The Trustee shall comply with the 	 procedures set forth in the Letter of Credit relating to the termination thereof. 	 	 	(d)	Federal Income Tax Requirements Pertaining to Substitutions of Letters of Credit 	 Upon Certain Mode Conversions. The CP Rate Mode, the Daily Rate Mode, the Weekly Rate 	 Mode, and each Adjustable Rate Period of one year or less shall be referred to as a "Short-Term 	 Mode" and each Adjustable Rate Period of greater than one year"s duration shall be referred to as 	 a "Long-Term Mode." Upon any conversion or change from a Short-Term Mode to a Long-Term 	 Mode or from a Long-Term Mode to a Short-Term Mode, if the Company then proposes to either 	 (i) add a Letter of Credit where none was then in effect, (ii) terminate a Letter of Credit then in 	 effect without replacing it with an Alternate Credit Facility, or (iii) terminate an existing Letter of 	 Credit and substitute an Alternate Credit Facility issued by a different Bank, the following shall apply: 	 	 	(A)	If the change or conversion is from a Long-Term Mode to a Short-Term Mode, 	 the Bonds shall be supported by a Letter of Credit issued by an entity with the highest generic 	 (i.e., without regard to "+" or "-" symbols) short-term rating on the effective date of such 	 change or conversion by the Rating Agency then rating the Bonds. 	 	 	(B)	If the change or conversion is from a Short-Term Mode to an Adjustable Rate 	 Period of greater than or equal to one but less than three years" duration, the Bonds shall be 	 supported by a Letter of Credit issued by an entity with an "A" long-term rating (or its 	 equivalent) on the effective date of such change or conversion by the Rating Agency than 	 rating the Bonds. 	 	 	(C)	If the change or conversion is from a Short-Term Mode to an Adjustable Rate 	 Period of greater than or equal to three years" duration, the Bonds shall not be supported by 	 any Letter of Credit for at least the duration of the Adjustable Rate Period to which the 	 Bonds are being converted. 	 	 	Notwithstanding any of the foregoing provisions of this Section 5.03(d), the Bonds may or may 	 not be supported by a Letter of Credit in contravention of such provisions if there is delivered to the 	 Trustee prior to the date of any such change or conversion an opinion of Bond Counsel to the effect 	 that the deviation from the provisions of this Section 5.03(d) will not adversely affect the exclusion 	 from gross income of interest on the Bonds. 	 	 	Section 5.04. Letter of Credit Draws and Bond Fund Moneys to Pay Principal, Premium, or 	 Interest. (a) On or before each Interest Payment Date, redemption date, and date on which principal 	 shall be due and payable on the Bonds, whether at maturity or upon acceleration, the Trustee shall 	 draw under the Letter of Credit (if then in effect) an amount which shall be sufficient for the 	 purpose of paying the principal of, premium, if any (if the Letter of Credit then covers premium) and 	 interest due and payable on the Bonds (other than Pledged Bonds and Company Bonds) on such 	 date. Such drawing shall be made in a timely manner under the terms of the Letter of Credit in 	 order that the Trustee may realize funds thereunder in sufficient time to pay Owners on the payment 	 date as provided herein. All amounts derived by the Trustee with respect to the Letter of Credit 	 shall be deposited in the Letter of Credit Account of the Bond Fund upon receipt thereof by the 	 Trustee, as provided in Section 5.03. If no Letter of Credit is then in effect, by 11:00 a.m. on any 	 Interest Payment Date, redemption date, acceleration date, or the maturity date of the Bonds, as the 	 case may be, the Trustee shall receive from the Company pursuant to Section 5.1(a) of the 	 Agreement the full amount of principal of, premium, if any, and interest due on the Bonds on that 	 date. 	 	 	(b)	The Issuer hereby authorizes and directs the Trustee to withdraw sufficient funds from 	 the Letter of Credit Account of the Bond Fund to pay the principal of, premium, if any, and interest 	 on, the Bonds as the same become due and payable; and, in the event of a default under the Letter 	 of Credit, or at such time as no Letter of Credit secures the Bonds, to use all moneys then on 	 deposit, first in the Available Moneys Account and thereafter the Non-Available Moneys Account, 	 of the Bond Fund to pay principal of, premium, if any, and interest on, the Bonds, which 	 authorization and direction the Trustee hereby accepts. On the Business Day which next succeeds 	 any date on which moneys are to be disbursed from the Bond Fund pursuant to the preceding 	 sentence, if moneys then remain in the Bond Fund, and if the Trustee's fees and expenses have been 	 paid such moneys shall be disbursed to the Bank to the extent amounts are then owed to the Bank 	 pursuant to the Reimbursement Agreement. The Trustee may rely on a certificate from the Bank 	 which certifies the amounts owed under the Reimbursement Agreement at any time. 	 	 	Section 5.05. Investment of Moneys. Subject to the restrictions hereinafter set forth in this 	 Section 5.05 and in the Tax Agreement, any moneys held in the Non-Available Moneys Account of 	 the Bond Fund and the Bond Proceeds Fund shall be invested and reinvested by the Trustee upon 	 the written instructions of the Company in Qualified Investments, maturing no later than the date 	 on which it is estimated that such moneys will be required to be paid out hereunder. Moneys held 	 in the Available Moneys Account of the Bond Fund shall be invested and reinvested solely in 	 Government Obligations, maturing no later than the date on which such moneys will be required to 	 be paid out hereunder. Moneys held in the Purchase Fund and the Letter of Credit Account and 	 moneys held pursuant to Section 5.06 hereof shall not be invested. The Trustee may make any and 	 all such investments through its own investment department, or through any of its affiliates or 	 subsidiaries. The Trustee shall be entitled to rely on all written investment instructions or telephonic 	 instructions subsequently confirmed in writing provided by the Company hereunder, and shall have 	 no duty to monitor the compliance thereof with the restrictions set forth in this Section 5.05 or in 	 the Tax Agreement. The Trustee shall not be responsible or liable for the performance of any such 	 investments or for keeping the moneys held by it hereunder fully invested at all times other than in 	 accordance with the instructions of the Company. Absent the provision of investment instructions 	 hereunder, the Trustee shall not make any investment of the moneys held pursuant hereto; provided, 	 however, that the Trustee shall notify the Company in the event any moneys are being held 	 uninvested pursuant hereto. Any obligations acquired by the Trustee as a result of such investment 	 or reinvestment shall be held by or under the control of the Trustee and shall be deemed to 	 constitute a part of the Fund or Account from which the moneys used for its purchase were taken. 	 All investment income shall be retained in the Fund or Account to which the investment is credited 	 from which such income is derived. 	 	 	Section 5.06. Moneys to Be Held in Trust; Nonpresentment of Bonds. (a) All moneys 	 required to be deposited with or paid to the Trustee for the account of any Fund or Account under 	 any provisions of this Indenture shall be held by the Trustee in trust, and, except for moneys 	 deposited with or paid to the Trustee for redemption of Bonds, notice of the redemption for which 	 has been duly given, and moneys on deposit in the Rebate Fund, shall, while held by the Trustee, 	 constitute part of the Trust Estate and be subject to the security interest created hereby. 	 	 	(b)	In the event any Bond shall not be presented for payment when the principal thereof 	 becomes due, either at maturity or otherwise, or at the date fixed for redemption thereof, if Available 	 Moneys sufficient to pay such Bond shall have been deposited in the Bond Fund, all liability of the 	 Issuer to the Owner thereof for the payment of such Bond shall forthwith cease, determine, and be 	 completely discharged, and thereupon it shall be the duty of the Trustee, subject to applicable escheat 	 laws, to hold such moneys, without liability for interest thereon, for the benefit of the Owner of such 	 Bond who shall thereafter be restricted exclusively to such moneys, for any claim of whatever nature 	 on his part under this Indenture or on, or with respect to, said Bond. Such moneys shall be held in 	 a separate and segregated fund and shall not be invested. 	 	 	(c)	Any moneys so deposited with and held by the Trustee not so applied to the payment 	 of Bonds for at least two years after the date on which the same shall have become due shall upon 	 (i) payment of the Trustee's fees and expenses and (ii) delivery to the Trustee of indemnification 	 reasonably satisfactory to it, then be paid by the Trustee to the Bank, upon the written direction of 	 the Bank that amounts are due and owing the Bank under the Reimbursement Agreement, or in any 	 other event, to the Company upon the written direction of the Company. Thereafter Owners shall 	 be entitled to look only to the Company for payment, the Company shall not be liable for any interest 	 thereon and shall not be regarded as a trustee of such moneys and the Trustee shall have no further 	 responsibilities with respect to such moneys. 	 	 	(d)	The obligation of the Trustee under this Section to pay any such funds to the Company 	 shall be subject, however, to any provisions of law applicable to the Trustee or to such funds 	 providing other requirements for disposition of unclaimed property. 	 	 	Section 5.07. Repayment from Indenture Funds. Any amounts remaining in any Fund or 	 Account created under this Indenture, after payment or provision for payment in full of the Bonds 	 in accordance with Article X hereof, the fees, charges, and expenses of the Issuer, the Trustee, the 	 Tender Agent, the Remarketing Agent, and any co-trustee appointed hereunder, and all other 	 amounts required to be paid hereunder or under the Agreement, and after and to the extent that the 	 Company shall determine that the payment of such remaining amounts may be made without violation 	 of the provisions of the Tax Agreement, shall be paid, upon the expiration of, or upon the sooner 	 termination of, the terms of this Indenture, to the Bank to the extent money shall be owed to the 	 Bank under the Reimbursement Agreement (as evidenced by written notice thereof given to the 	 Trustee by the Bank) and, thereafter, to the Company. 	 	 	Section 5.08. Tax Covenants. (a) The Issuer and the Trustee covenant with the Owners of 	 the Bonds that, notwithstanding any other provision of this Indenture or any other instrument, they 	 will not knowingly make any investment or other use of the proceeds of the Bonds or any other 	 moneys held under this Indenture which would cause the Bonds to be "arbitrage bonds" under 	 section 148 of the Code or "federally guaranteed" obligations under section 149(b) of the Code, and 	 they further covenant that they will comply with all applicable requirements of sections 103 and 	 141-150 of the Code (except that the Issuer and the Trustee shall be deemed to have complied with 	 these requirements as long as they act on the written direction of the Company). 	 	 	(b)	The Trustee shall maintain the Rebate Fund established by Section 5.10 hereof as a 	 separate fund which shall be continuously held, invested, expended, and accounted for in accordance 	 with the provisions of Section 5.10 hereof; provided, however that the Rebate Fund need not be 	 maintained if the Company, the Issuer, and the Trustee shall have received an opinion of Bond 	 Counsel to the effect that failure to maintain the Rebate Fund shall not adversely affect the exclusion 	 of interest on the Bonds from the federal gross income of the Owners thereof. 	 	 	(c)	In maintaining the Rebate Fund, the Trustee will keep and retain the records described 	 in Section 5.10 hereof to the extent such records relate to Funds held by the Trustee, and the Trustee 	 will take such further action as the Company may direct pursuant to Section 5.10 hereof in order to 	 comply with the rebate requirements contained in section 148(f) of the Code. 	 	 	(d)	Notwithstanding any other provision herein to the contrary, the Trustee shall be 	 permitted to transfer moneys on deposit in any of the trust funds established hereunder (other than 	 moneys representing remarketing proceeds or draws under the Letter of Credit to the extent needed 	 to pay principal or purchase price of, premium, if any, or interest on the Bonds) to the Rebate Fund. 	 	 	Section 5.09. Custody of Funds and Accounts. Except as otherwise expressly provided herein, 	 all Funds and Accounts created pursuant to this Indenture and held by the Trustee shall be held in 	 trust, in the name of the Issuer, for the benefit of the Owners and, to the extent of amounts owed 	 by the Company to the Bank under the Reimbursement Agreement, the Bank. Notwithstanding the 	 foregoing, the Rebate Fund shall be held for the benefit of the United States of America. 	 	 	Section 5.10. Rebate Fund, Rebate. (a) There is hereby created by the Issuer and ordered 	 established with the Trustee a Rebate Fund. Moneys held from time to time in the Rebate Fund 	 shall not constitute part of the Trust Estate, but shall be held solely for the purpose hereinbelow 	 described. Promptly after the end of each fifth Bond Year, the Trustee shall determine whether 	 during the prior five Bond Years any of the funds which it held in any of the funds or accounts under 	 this Indenture (other than the Rebate Fund) were invested in any permitted investment. If the 	 Trustee determines that any such funds were so invested (except for funds so invested in the Bond 	 Fund which produce gross earnings which amount to less than $100,000 during each Bond Year), the 	 Company shall retain (at its expense) a Rebate Analyst, and the following provisions shall apply: 	 Pursuant to Section 2.2(n) of the Agreement, within thirty (30) days after each fifth Bond Year, the 	 Company shall cause the Rebate Analyst to compute, and deliver to the Trustee written notice and 	 direction of, the amount of any transfer or deposit to the Rebate Fund (or, if there has been a loss 	 in any fund or account other than the Rebate Fund, the amount of any withdrawal from the Rebate 	 Fund) which is necessary to cause the aggregate amount transferred to or otherwise deposited in such 	 Rebate Fund to equal the amount required to be rebated to the United States pursuant to the 	 requirements of section 148 of the Code. If a deposit to the Rebate Fund is required in accordance 	 with the written direction of the Rebate Analyst, the Trustee shall accept such payment from the 	 Company and deposit it in the Rebate Fund for the benefit of the Issuer. If the computations of the 	 Rebate Analyst show that a withdrawal may be made from the Rebate Fund on account of a loss, the 	 Trustee shall, upon receipt of an approving opinion of Bond Counsel to the effect that such 	 withdrawal will not adversely affect the exclusion from gross income for federal income tax purposes 	 of interest on the Bonds, and in accordance with the written directions of the Company and the 	 Rebate Analyst, withdraw such amount from the Rebate Fund and pay such amount to the Company. 	 Records of the actions required to be taken by the Trustee by this Section 5.10 must be retained by 	 the Trustee until six (6) years after the last Bond is no longer outstanding. 	 	 	(b) Not later than sixty (60) days after the fifth Bond Year and every fifth Bond Year 	 thereafter, the Trustee shall, at the written direction of the Rebate Analyst, pay to the United States 	 Government at least ninety percent (90%) of the amount specified in writing by the Rebate Analyst 	 required to be rebated to the United States from funds on deposit in the Rebate Fund or from funds 	 provided by the Company. Not later than forty-five (45) days after the final retirement of the Bonds, 	 the Rebate Analyst shall specify in writing to the Trustee the amount required to be rebated to the 	 United States, whereupon the Trustee shall request that the Company deposit with the Trustee 	 pursuant to the Section 2.2(n) of the Agreement such amount, if any, as is necessary to bring the 	 balance in the Rebate Fund to the amount required to be rebated to the United States pursuant to 	 the requirements of section 148 of the Code and, upon receipt of such funds from the Company, the 	 Trustee shall pay to the United States the amount specified in writing by the Rebate Analyst to be 	 paid to the United States; any balance remaining in the Rebate Fund after the final payment upon 	 retirement of the Bonds shall be paid to the Company unless otherwise specified in writing by the 	 Rebate Analyst. The final payment by the Trustee to the United States shall be made no later than 	 sixty (60) days after the final retirement of the Bonds, to the extent funds therefor are on deposit in 	 the Rebate Fund at such time. 	 	 	(c) The Trustee shall make information regarding the Bonds and investments hereunder 	 available to the Rebate Analyst promptly following each fifth Bond Year, shall make deposits to and 	 disbursements from the Rebate Fund in accordance with the directions received from the Rebate 	 Analyst, shall invest moneys in the Rebate Fund as required by Section 5.05 hereof, and shall deposit 	 income from such investments immediately upon receipt thereof in the Rebate Fund. 	 	 	(d) This Section 5.10 is intended to comply with the requirements of section 148 of the Code 	 and the regulations promulgated thereunder. The requirements of this Section 5.10 shall be deemed 	 modified and amended in the manner and to the extent necessary, in the written opinion of Bond 	 Counsel delivered to the Issuer, the Company, and the Trustee, to permit compliance with the 	 provisions of said section 148 applicable to the Bonds. 	 	 	Section 5.11. Payments in the Project Account; Disbursements. Proceeds of the issuance and 	 delivery of the Bonds shall be deposited in the Project Account as provided in Section 5.01 hereof. 	 Moneys in the Project Account shall be expended on orders signed by an Authorized Company 	 Representative stating with respect to each payment to be made: 	 	 	(a)	The requisition number; 	 	 	(b)	The name and address of the person, firm, or corporation to whom payment is 	 due or has been made, which may include the Company; 	 	 	(c)	The amount to be or which has been paid; 	 	 	(d)	That each obligation mentioned therein has been properly incurred, is a proper 	 charge against the Project Account, and has not been the basis of any previous requisition; 	 	 	(e)	That each item for which payment is proposed to be made is or was necessary 	 in connection with the Project; 	 	 	(f)	That after taking into account the costs proposed to be paid or reimbursed in said 	 certificate, all of the costs paid or reimbursed out of the Project Account are amounts which 	 will be chargeable to the Project's capital account or which would be so chargeable either with 	 a proper election by the Company under the Code or but for a proper election by the 	 Company to deduct such amount and were incurred and paid, or are to be incurred and paid, 	 subsequent to January 17, 1994; 	 	 	(g)	That after taking into account the costs proposed to be paid or reimbursed in said 	 certificate, at least 95% of the costs paid or reimbursed out of the Bond Proceeds Fund are 	 for land costs or costs of property of a character subject to the allowance for depreciation for 	 federal income tax purposes and were incurred and paid, or are incurred and paid, subsequent 	 to January 17, 1994; 	 	 	(h)	That after taking into account the costs proposed to be paid or reimbursed in said 	 certificate, no more than $160,000 of the costs paid or reimbursed out of the Bond Proceeds 	 Fund are issuance costs within the meaning of the Code; and 	 	 		(i)	That no Event of Default exists under the Agreement. 	 	 	The Trustee is hereby authorized and directed to make each disbursement required by the 	 provisions of the Agreement and to issue its checks therefor. The Trustee shall keep and maintain 	 adequate records pertaining to the Project Account and all disbursements therefrom, and after the 	 Project has been completed and a certificate of payment of all costs is or has been filed as provided 	 in Section 5.11 hereof, the Trustee shall file an accounting thereof with the Issuer, the Guarantor, 	 and the Company. 	 	 	Section 5.12. Completion of Project. The completion of the Project and payment or provision 	 made for payment of the full Cost of the Project shall be evidenced by the filing with the Trustee of 	 a certificate required by the provisions of Section 3.3 of the Agreement. Any balance remaining in 	 the Project Account on the Completion Date shall be used in accordance with said Section. 	 	 	Section 5.13. Transfer of Construction Fund. If the Company should prepay all amounts 	 payable under Section 5.1(a) of the Agreement, any balance then remaining in the Project Account 	 shall without further authorization be deposited in the Bond Fund by the Trustee. 	 	 	Section 5.14. Custody of Funds and Accounts. Except as otherwise expressly provided herein, 	 all Funds and Accounts created pursuant to this Indenture and held by the Trustee shall be held in 	 trust, in the name of the Issuer, for the benefit of the Owners and, to the extent of amounts owed 	 by the Company to the Bank under the Reimbursement Agreement, the Bank. 	 	 Article VI 	 Defaults and Remedies 	 	 	Section 6.01. Events of Default. Each of the following shall constitute, and is referred to in 	 this Indenture as, an "Event of Default": 	 	 	(a)	a default in the payment when due of interest on any Bond; 	 	 	(b)	a default in the payment of principal of, or premium, if any, on any Bond when due, 	 whether at maturity, upon acceleration or redemption, or otherwise; 	 	 	(c)	a default in the payment when due of the purchase price of any Bond required to be 	 purchased pursuant to Section 2.03 or Section 2.04; 	 	 	(d)	the Issuer fails to perform any of its agreements in this Indenture or the Bonds (except 	 a failure that results in an Event of Default under clause (a), (b), or (c) above), the performance of 	 which is material to the Owners, and which failure continues after the giving of the notice of default 	 and the expiration of the grace period specified in this Section; 	 	 	(e)	the Company or the Guarantor fails to perform any of its agreements in the Agreement 	 or the Guaranty (except a failure that results in an Event of Default under clause (a), (b), or (c) of 	 this Section), and the failure continues after the notice and for the period specified in this Section; 	 	 	(f)	the Company or the Guarantor pursuant to or within the meaning of any Bankruptcy 	 Law (as defined below) (l) commences a voluntary case, (2) consents to the entry of an order for 	 relief against it in an involuntary case, (3) consents to the appointment of a Custodian (as defined 	 below) for the Company or the Guarantor or any substantial part of its property, or (4) makes a 	 general assignment for the benefit of its creditors; 	 	 	(g)	a court of competent jurisdiction enters an order or decree under any Bankruptcy Law 	 that (l) is for relief against the Company or the Guarantor in an involuntary case, (2) appoints a 	 Custodian for the Company or the Guarantor or any substantial part of its property or (3) orders the 	 winding up or liquidation of the Company or the Guarantor, and the decree or order remains 	 unstayed and in effect for 60 days; 	 	 	(h)	the Trustee receives notice from the Bank that a "default" or "event of default" has 	 occurred and is continuing under the Reimbursement Agreement; and 	 	 	(i)	the Trustee receives notice from the Bank on or before the date or dates specified in 	 the Letter of Credit following a drawing on the Letter of Credit to pay interest on the Bonds that 	 it will not reinstate its Letter of Credit in the amount of the said interest drawing. 	 	 	"Bankruptcy Law" means Title 11 of the United States Code or any similar Federal or state 	 law for the relief of debtors. "Custodian" means any receiver, trustee, assignee, liquidator, custodian, 	 or similar official under any Bankruptcy Law. 	 	 	A default under clause (d) or (e) of this Section is not an Event of Default until the Trustee 	 or the Owners of at least a majority in principal amount of the Bonds then outstanding give the 	 Issuer, the Guarantor, and the Company a notice specifying the default, demanding that it be 	 remedied, and stating that the notice is a "Notice of Default," and the Issuer or the Company (if the 	 default is under clause (d)) or the Company or the Guarantor (if the default is under clause (e)) does 	 not cure the default within 60 days after receipt of the notice, or within such longer period as the 	 Trustee shall agree to. The Trustee shall not unreasonably refuse to agree to a longer cure period 	 if the default cannot reasonably be cured within 60 days after receipt of the notice and the Issuer, 	 the Guarantor, or the Company has demonstrated to the Trustee that it has begun within 60 days and 	 continued diligent efforts to cure the default and the Trustee has received indemnification reasonably 	 satisfactory to it. The Issuer authorizes the Company and the Guarantor to perform, in the name 	 and on behalf of the Issuer and for the purpose of preventing the occurrence of an Event of Default, 	 any agreement of the Issuer in this Indenture or the Bonds. 	 	 	Section 6.02. Acceleration. If an Event of Default under clause (h) or (i) of the foregoing 	 Section occurs, the principal and accrued interest to the date of acceleration on the Bonds shall 	 become due and payable immediately. If any other Event of Default occurs and is continuing, the 	 Trustee by notice to the Issuer, the Guarantor, and the Company, or the Owners of at least a 	 majority in principal amount of the Bonds then outstanding by notice to the Issuer, the Company, 	 the Guarantor, and the Trustee, may declare the principal of and accrued interest on the Bonds to 	 be due and payable immediately. Upon the principal of and accrued interest on the Bonds becoming 	 due and payable as provided in this Section, the Trustee shall immediately draw on the Letter of 	 Credit, if any, to pay the principal of and accrued interest on the Bonds. The Trustee shall 	 immediately give notice of acceleration to the Owners. Interest on the Bonds shall cease to accrue, 	 and the principal of and accrued and unpaid interest on the Bonds shall, without further action, 	 become immediately due and payable, on the date of acceleration. 	 	 	The Trustee may, and upon the request of Owners of a majority in principal amount of the 	 Bonds then outstanding shall, rescind an acceleration and its consequences if (a) all existing Events 	 of Default have been cured or waived, (b) the rescission would not conflict with any judgment or 	 decree, (c) all payments due the Trustee and any predecessor Trustee under Section 7.06 have been 	 made, and (d) when a Letter of Credit is in effect, the Bank consents and the Letter of Credit is 	 reinstated up to the full amount available under it immediately prior to such Event of Default. 	 	 	Section 6.03. Other Remedies. (a) If an Event of Default occurs and is continuing, the 	 Trustee may pursue any available remedy by proceeding at law or in equity to collect the principal 	 of or interest on the Bonds or to enforce the performance of any provision of the Bonds, this 	 Indenture, the Agreement, the Guaranty, and the Letter of Credit including, without limitation, the 	 exercise of any remedy granted to it in the Agreement. 	 	 	(b)	The Trustee may maintain a proceeding even if it does not possess any of the Bonds 	 or does not produce any of them in the proceeding. A delay or omission by the Trustee or any 	 Owner in exercising any right or remedy accruing upon an Event of Default shall not impair the right 	 or remedy or constitute a waiver of or acquiescence in the Event of Default. No remedy is exclusive 	 of any other remedy. All available remedies are cumulative. 	 	 	(c)	During any period the Bonds are secured by the Letter of Credit and draws thereunder 	 have been duly honored by the Bank in accordance with the terms and provisions of the Letter of 	 Credit, all remedies pursued by the Trustee upon the occurrence of an Event of Default (other than 	 draws upon the Letter of Credit) shall be taken only with the prior consent of the Bank. 	 	 	Section 6.04. Waiver of Past Defaults. The Owners of a majority in principal amount of the 	 Bonds then outstanding, together with the Bank, by written notice to the Trustee, may waive an 	 existing Event of Default and its consequences if the Letter of Credit is reinstated up to the full 	 amount available under it immediately prior to such Event of Default. When an Event of Default 	 is waived, it is cured and stops continuing, but no such waiver shall extend to any subsequent or other 	 Event of Default or impair any right consequent to it. 	 	 	Section 6.05. Control by Majority. The Owners of a majority in principal amount of the Bonds 	 then outstanding may (with the consent of the Bank) direct the time, method, and place of 	 conducting any proceeding for any remedy available to the Trustee or of exercising any trust or power 	 conferred on it. However, the Trustee may refuse to follow any direction that conflicts with law or 	 this Indenture or, subject to Section 7.01, that the Trustee determines is unduly prejudicial to the 	 rights of other Owners, or would involve the Trustee in personal liability. 	 	 	Section 6.06. Limitation on Suits. An Owner may not pursue any remedy with respect to this 	 Indenture or the Bonds unless (a) the Owner gives the Trustee notice stating that an Event of 	 Default is continuing, (b) the Owners of at least 25% in principal amount of the Bonds then 	 outstanding make a written request to the Trustee to pursue the remedy, (c) such Owner or Owners 	 offer to the Trustee indemnity satisfactory to the Trustee against any loss, liability or expense, and 	 (d) the Trustee does not comply with the request within 60 days after receipt of the request and the 	 offer of indemnity. 	 	 	A Owner may not use this Indenture to prejudice the rights of another Owner or to obtain a 	 preference or priority over the other Owners. 	 	 	Section 6.07. Rights of Owners to Receive Payment. Notwithstanding any other provision of 	 this Indenture, the right of any Owner to receive payment of principal of and interest on a Bond, on 	 or after the due dates expressed in the Bond, or the purchase price of a Bond on or after the date 	 for its purchase as provided in the Bond, or to bring suit for the enforcement of any such payment 	 on or after such dates, shall not be impaired or affected without the consent of the Owner. 	 	 	Section 6.08. Collection Suit by Trustee. If an Event of Default under Section 6.01(a), (b) 	 or (c) occurs and is continuing, the Trustee may recover judgment in its own name and as trustee of 	 an express trust against the Company or the Bank for the whole amount remaining unpaid. 	 	 	Section 6.09. Trustee May File Proofs of Claim. The Trustee may file such proofs of claim 	 and other papers or documents as may be necessary or advisable in order to have the claims of the 	 Trustee and the Owners allowed in any judicial proceedings relative to the Company or the Bank, 	 its creditors or its property and, unless prohibited by law or applicable regulations, may vote on behalf 	 of the Owners in any election of a trustee in bankruptcy or other person performing similar functions. 	 	 	Section 6.10. Priorities. If the Trustee collects any money pursuant to this Article, it shall pay 	 out the money in the following order: 	 	 	First: To the Trustee and the Tender Agent for amounts to which they are entitled under 	 Section 7.06 hereof or Section 5.2 of the Agreement, but the Trustee may not pay itself or the 	 Tender Agent from money drawn under the Letter of Credit, from the proceeds of the remarketing 	 of any Bonds, or from amounts held by the Trustee pursuant to Article X or Section 5.06(b). 	 	 	Second: To Owners for amounts due and unpaid on the Bonds for principal and interest, 	 ratably, without preference or priority of any kind, according to the amounts due and payable on the 	 Bonds for principal and interest, respectively. 	 	Third: To the Bank to the extent the Bank certifies to the Trustee that the Company is 	 indebted to the Bank on account of draws under the Letter of Credit or any other amounts due and 	 payable to the Bank under the Reimbursement Agreement. 	 	 	Fourth: To the Issuer. 	 	 	Fifth: To the Company. 	 	 	The Trustee may fix a payment date for any payment to the Owners in accordance with this 	 Section. 	 	 	Section 6.11. Bank Deemed Owner of Certain Bonds. Notwithstanding any other provision 	 in this Article, as long as the Letter of Credit is in effect the Bank shall be deemed to be the owner 	 of all Bonds which are secured by the Letter of Credit and all Company Bonds and all Pledged Bonds 	 for all purposes of this Article VI following the occurrence of an Event of Default. In no event, 	 however, may the Bank direct the Trustee not to draw on the Letter of Credit, or prevent the 	 Trustee from so drawing, pursuant to the provisions of this Article VI after the occurrence of an 	 Event of Default under clause (h) or (i) of Section 6.01 hereof. 	 	 	Section 6.12. Bank Rights. Notwithstanding any other provision of this Article, as long as the 	 Letter of Credit is in effect or amounts are owed to the Bank under the Reimbursement Agreement, 	 the Trustee shall take any action that it is required or permitted to take under this Article VI (except 	 for the Trustee's obligations to draw under a Letter of Credit due to an Event of Default under 	 clause (h) or (i) of Section 6.01, which shall be absolute and unconditional) solely at the written 	 direction of the Bank, and the Trustee shall not take any such action without such written direction. 	 	 	 Article VII 	 Trustee, Remarketing Agent, and Tender Agent 	 	 	Section 7.01. Duties of Trustee. (a) Prior to the occurrence of an Event of Default, the 	 Trustee shall have no liability for any action or omission in the performance of its duties hereunder, 	 except in the case of negligence or willful misconduct on the part of the Trustee. During the 	 existence of an Event of Default, the Trustee shall exercise its rights and powers and use the same 	 degree of care and skill in their exercise as a prudent person would exercise or use under the 	 circumstances in the conduct of such person"s own affairs. 	 	 	(b)	Except during the continuance of an Event of Default, 	 	 	(i)	the Trustee shall be required to perform only those duties that are specifically 	 set forth in this Indenture and no others, and 	 	 	(ii)	in the absence of bad faith on its part, the Trustee may conclusively rely, as to 	 the truth of the statements and the correctness of the opinions expressed, upon certificates or 	 opinions furnished to the Trustee and conforming to the requirements of this Indenture. 	 However, the Trustee shall examine the certificates and opinions to determine whether they 	 conform to the requirements of this Indenture. 	 	 	(c)	The Trustee may not be relieved from liability for its own negligent action, its own 	 negligent failure to act or its own willful misconduct, except that 	 	(i)	this paragraph does not limit the effect of paragraph (b) of this Section, 	 	 	(ii)	the Trustee shall not be liable for any error of judgment made in good faith by 	 any employee of the Trustee assigned by the Trustee to administer its corporate trust matters 	 (a "Responsible Officer"), unless it is proved that the Trustee was negligent in ascertaining the 	 pertinent facts; 	 	 	(iii)	the Trustee shall not be liable with respect to any action it takes or omits to take 	 in good faith in accordance with a direction received by it pursuant to Section 6.05; and 	 	 	(iv)	no provision of this Indenture shall require the Trustee to expend or risk its own 	 funds or otherwise incur any financial liability in the performance of any of its duties hereunder 	 or in the exercise of any of its rights or powers, if it shall have reasonable grounds for believing 	 that repayment of such funds or adequate indemnity against such risk or liability is not 	 reasonably assured to it. 	 	 	(d)	Every provision of this Indenture that in any way relates to the Trustee is subject to all 	 the paragraphs of this Section. 	 	 	(e)	The Trustee may refuse to perform any duty or exercise any right or power unless it 	 receives indemnity satisfactory to it against any loss, liability, or expense, but the Trustee may not 	 require indemnity as a condition to declaring the principal of, premium, if any, and interest on the 	 Bonds to be due immediately under Section 6.02 or to drawing on the Letter of Credit or to making 	 any payment of principal or interest on the Bonds. 	 	 	(f)	The Trustee shall not be liable for interest on any cash held by it. 	 	 	Section 7.02. Rights of Trustee. Subject to the foregoing Section: 	 	 	(a)	The Trustee may rely on any document reasonably believed by it to be genuine and to 	 have been signed or presented by the proper person. The Trustee need not investigate any fact or 	 matter stated in the document. 	 	 	(b)	Before the Trustee acts or refrains from acting, it may require a certificate of an 	 appropriate officer or officers of the Issuer or the Company or an opinion of counsel; provided that 	 it may not require such a certificate as a condition to declaring the principal of and interest on the 	 Bonds to be due immediately under Section 6.02 or to drawing on the Letter of Credit or to making 	 any payment on the Bonds. The Trustee shall not be liable for any action it takes or omits to take 	 in good faith in reliance on the certificate or opinion of counsel. 	 	 	(c)	The Trustee may act through agents or co-trustees and shall not be responsible for the 	 misconduct or negligence of any agent or co-trustee appointed with due care. 	 	 	Section 7.03. Individual Rights of Trustee. The Trustee in its individual or any other capacity 	 may become the Owner or pledgee of Bonds and may otherwise deal with the Issuer or with the 	 Company or its affiliates with the same rights it would have if it were not trustee. Any paying agent 	 may do the same with like rights. 	 	 	Section 7.04. Trustee"s Disclaimer. The Trustee makes no representation as to the validity 	 or adequacy of this Indenture or the Bonds, it shall not be accountable for the Company"s use of 	 the proceeds from the Bonds paid to the Company, and it shall not be responsible for any statement 	 in the Bonds other than its certificate of authentication. 	 	 	Section 7.05. Notice of Defaults. (a) If an event occurs which with the giving of notice or 	 lapse of time or both would be an Event of Default, and if the event is continuing and if it is known 	 to the Trustee, the Trustee shall mail to each Owner and the Bank notice of the event within 30 days 	 after it occurs. Except in the case of a default in payment or purchase on any Bonds, the Trustee 	 may withhold the notice if and so long as a committee of its Responsible Officers (as defined in 	 Section 7.01(c)) in good faith determines that withholding the notice is in the interests of Owners. 	 	 	(b)	The Trustee shall not be required to take notice or be deemed to have notice of any 	 default or Event of Default hereunder, or in any other document or instrument executed in 	 connection with the execution and delivery of the Bonds, except an Event of Default under Section 	 6.01(a), (b), (c), (h) or (i) hereof, unless the Trustee shall be specifically notified in writing of such 	 default or Event of Default by the Issuer, the Tender Agent, the Bank, the Company, or the Owners 	 of at least 25% in aggregate principal amount of the Bonds then Outstanding. All notices or other 	 instruments required by this Indenture to be delivered to a responsible officer of the Trustee shall 	 be delivered at the corporate trust office of the Trustee and, in the absence of such notice so 	 delivered, the Trustee may conclusively assume there is no default except as aforesaid. 	 	 	Section 7.06. Compensation and Indemnity of Trustee. For acting under this Indenture, the 	 Trustee shall be entitled to payment of compensation as outlined in its fee schedule for its services 	 and reimbursement of advances, counsel fees, and other expenses reasonably and necessarily made 	 or incurred by the Trustee in connection with its services under this Indenture. 	 	 	To secure the payment or reimbursement to the Trustee provided for in this Section, the 	 Trustee shall have a senior claim, to which the Bonds are made subordinate, on all money or property 	 held or collected by the Trustee, except that held under Article X or otherwise held in trust to pay 	 principal of and interest on particular Bonds and except amounts drawn under the Letter of Credit 	 or remarketing proceeds held by the Trustee or Tender Agent hereunder. 	 	 	The Company has agreed in the Agreement to indemnify the Trustee for, and to hold it 	 harmless against, certain losses, liabilities, and expenses incurred by the Trustee. 	 	 	Section 7.07. Eligibility of Trustee. The Trustee shall be a corporation organized and doing 	 business under the laws of the United States or any state or the District of Columbia, authorized 	 under such laws to exercise corporate trust powers in the State, and subject to supervision or 	 examination by United States, state or District of Columbia authority. The initial Trustee shall be 	 Bank One, Texas, NA. The initial Trustee and any successor Trustee must be an institution 	 acceptable to the Issuer, authorized to act as a trustee in the State, and rated at least "Baa3" by 	 Moody"s Investors Service (or Moody"s Investors Service shall have provided written evidence that 	 such successor Trustee is otherwise acceptable to Moody"s Investors Service) if the Bonds are then 	 rated by Moody"s Investors Service, and at least "BBB-" or "A-3" by Standard & Poor"s 	 Corporation (or Standard & Poor"s Corporation shall have provided written evidence that such 	 successor Trustee is otherwise acceptable to Standard & Poor"s Corporation) if the Bonds are then 	 rated by Standard & Poor"s Corporation, and authorized by law to perform all the duties imposed 	 upon it as Trustee by this Indenture. 	 	 	Section 7.08. Replacement of Trustee. The Trustee may resign by notifying the Issuer and 	 the Company. The Owners of a majority in principal amount of the Bonds then outstanding may 	 remove the Trustee by notifying the removed Trustee and may appoint a successor Trustee with the 	 Issuer"s, the Bank"s, and the Company"s prior written consent. If no Event of Default shall have 	 occurred and be continuing, the Company may cause the Trustee to be removed, with the consent 	 of the Remarketing Agent and the Issuer, by giving notice to the Issuer and the Bank requesting the 	 Issuer to remove and replace the Trustee. In addition, the Issuer shall, at the direction of the 	 Company or on its own volition, remove the Trustee if (a) the Trustee fails to comply with 	 Section 7.07 hereof, (b) the Trustee is adjudged a bankrupt or an insolvent, (c) a receiver or other 	 public officer takes charge of the Trustee or its property or (d) the Trustee otherwise becomes 	 incapable of acting. 	 	 	If the Trustee resigns or is removed from the office of Trustee for any reason, the Issuer, with 	 the prior written consent of the Bank and the Company, shall promptly appoint a successor Trustee. 	 	 	A successor Trustee shall deliver a written acceptance of its appointment to the retiring 	 Trustee and to the Issuer. Immediately thereafter, the retiring Trustee shall transfer all property 	 (including the Letter of Credit) held by it as Trustee to the successor Trustee, the resignation or 	 removal of the retiring Trustee shall then (but only then) become effective, and the successor Trustee 	 shall have all the rights, powers, and duties of the Trustee under this Indenture. 	 	 	If a successor Trustee does not take office within 60 days after the retiring Trustee resigns or 	 is removed, the retiring Trustee, the Issuer, the Company, the Bank, the Guarantor, or the Owners 	 of a majority in principal amount of the Bonds then outstanding may petition any court of competent 	 jurisdiction for the appointment of a successor Trustee. 	 	 	If the Trustee fails to comply with the foregoing Section, any Owner may petition any court 	 of competent jurisdiction for the removal of the Trustee and the appointment of a successor Trustee. 	 	 	Section 7.09. Duties of Remarketing Agent. The Remarketing Agent will determine the 	 interest rate on the Bonds as provided in this Indenture as the designee of the Issuer. The 	 Remarketing Agent will remarket Bonds as provided in this Indenture as the designee of the 	 Company. The Remarketing Agent may for its own account or as broker or agent for others deal 	 in Bonds and may do anything any other Owner may do to the same extent as if the Remarketing 	 Agent were not serving as such. 	 	 	Section 7.10. Eligibility of Remarketing Agent; Replacement. The initial Remarketing Agent 	 shall be The First National Bank of Chicago, Chicago Illinois. Any successor Remarketing Agent 	 must be an institution acceptable to the Issuer and rated at least "Baa3" by Moody"s Investors 	 Service (or Moody"s Investors Service shall have provided written evidence that such successor 	 Remarketing Agent is otherwise acceptable to Moody"s Investors Service) if the Bonds are then 	 rated by Moody"s Investors Service, and at least "BBB-" or "A-3" by Standard & Poor"s 	 Corporation (or Standard & Poor"s Corporation shall have provided written evidence that such 	 successor Remarketing Agent is otherwise acceptable to Standard & Poor"s Corporation) if the 	 Bonds are then rated by Standard & Poor"s Corporation, and authorized by law to perform all the 	 duties imposed upon it by this Indenture. 	 	 	A Remarketing Agent may at any time resign from its duties under this Indenture by giving at 	 least 30 days" written notice to the Issuer, the Company, the Guarantor, the Bank, the Tender 	 Agent, and the Trustee. The Trustee shall mail a copy of such notice by certified mail to each of the 	 Bond Owners. A Remarketing Agent may be removed at any time at the direction of the Issuer and 	 the Company by an instrument signed by the Issuer and the Company and filed at least 30 days prior 	 to such removal with the Remarketing Agent, the Bank, and the Trustee. No removal or resignation 	 hereunder shall become effective prior to the acceptance of appointment of a successor Remarketing 	 Agent hereunder. 	 	 	While the Bonds are in a Book-Entry System, the Remarketing Agent shall serve as the 	 Participant on behalf of all of the Beneficial Owners of the Bonds. 	 	 	Section 7.11. Tender Agent. (a) During any period the Bonds shall not be in a Book-Entry 	 System, the Company shall appoint a Tender Agent for the Bonds, who shall be satisfactory to the 	 Issuer, the Trustee, and the Remarketing Agent and who, upon acceptance of its duties, will perform 	 the obligations of the Tender Agent set forth in this Indenture. Any Tender Agent must be an 	 institution rated at least "Baa3" by Moody"s Investors Service (or Moody"s Investors Service shall 	 have provided written evidence that such successor Tender Agent is otherwise acceptable to Moody"s 	 Investors Service) if the Bonds are then rated by Moody"s Investors Service, and at least "BBB-" or 	 "A-3" by Standard & Poor"s Corporation (or Standard & Poor"s Corporation shall have provided 	 written evidence that such successor Tender Agent is otherwise acceptable to Standard & Poor"s 	 Corporation) if the Bonds are then rated by Standard & Poor"s Corporation, and authorized by law 	 to perform all the duties imposed upon it as Tender Agent by this Indenture. The initial Tender 	 Agent and any successor Tender Agent shall accept its duties hereunder by a written certificate or 	 tender agent agreement delivered to the Trustee, which certificate or agreement shall designate the 	 Principal Office of the Tender Agent. 	 	 	(b)	The Tender Agent may at any time resign by giving thirty (30) days" notice to the 	 Issuer, the Trustee, the Company, the Bank, and the Remarketing Agent. Promptly upon the receipt 	 of such notice, the Trustee shall mail copies thereof to each registered Owner of the Bonds. In no 	 event, however, shall any resignation of the Tender Agent take effect until a successor Tender Agent 	 shall have been appointed. 	 	 	(c)	The Tender Agent may be removed at any time by an instrument in writing delivered 	 to the Trustee and the Tender Agent by the Company, with the prior written approval of the Bank 	 and the Issuer. In no event, however, shall any removal of the Tender Agent take effect until a 	 successor Tender Agent shall have been appointed. 	 	 	(d)	Written notice of the appointment of a Tender Agent shall immediately be given by the 	 Trustee to the Issuer and to the Owners. If no successor to a Tender Agent has accepted 	 appointment in the manner provided above within 30 days after the Tender Agent has given notice 	 of its resignation as provided above, the Trustee shall serve as Tender Agent or shall appoint an 	 agent to act in its stead. 	 	 	Section 7.12. Successor Trustee, Remarketing Agent, or Tender Agent by Merger. If the 	 Trustee, the Tender Agent, or the Remarketing Agent consolidates with, merges, or converts into, 	 or transfers all or substantially all its assets (or, in the case of a bank or trust corporation, its 	 corporate trust assets) to, another corporation, the resulting, surviving, or transferee corporation 	 without any further act shall, if otherwise eligible to serve hereunder, be the successor Trustee, 	 Tender Agent, or Remarketing Agent. 	 	 	 	 Article VIII 	 Supplemental Indentures 	 	 	Section 8.01. Without Consent of Owners. The Issuer and the Trustee may amend or 	 supplement this Indenture or the Bonds without notice to or consent of any Owner: 	 	 	(a)	to cure any ambiguity, inconsistency, or formal defect or omission; 	 	 	(b)	to grant to the Trustee for the benefit of the Owners additional rights, remedies, 	 powers, or authority; 	 	 	(c)	to subject to this Indenture additional collateral or to add other agreements of the 	 Issuer; 	 	 	(d)	to modify this Indenture or the Bonds to permit qualification under the Trust Indenture 	 Act of 1939 or any similar Federal statute at the time in effect, or to permit the qualification of the 	 Bonds for sale under the securities laws of any state of the United States; 	 	 	(e)	to evidence the succession of a new Trustee or the appointment by the Trustee or the 	 Issuer of a co-trustee; 	 	 	(f)	to make any change that does not materially adversely affect the rights of any Owner; 	 	 	(g)	to facilitate the use of the Book-Entry System; and 	 	 	(h)	to facilitate the substitution of an Alternate Credit Facility which is not an irrevocable 	 letter of credit, but without modifying the payment terms of the Bonds. 	 	 	Section 8.02. With Consent of Owners. If an amendment of or supplement to this Indenture 	 or the Bonds without any consent of Owners is not permitted by the preceding Section, the Issuer 	 and the Trustee may enter into such amendment or supplement with the consent of the Owners of 	 at least a majority in principal amount of the Bonds then Outstanding. However, without the consent 	 of each Owner affected, no amendment or supplement may (a) extend the maturity of the principal 	 of, or the due date of the payment of interest on, any Bond, (b) reduce the principal amount of, or 	 rate of interest on, any Bond, (c) effect a privilege or priority of any Bond or Bonds over any other 	 Bond or Bonds, (d) reduce the percentage of the principal amount the Bonds required for consent 	 to such amendment or supplement, (e) impair the excludability from gross income for federal income 	 tax purposes of interest on any Bond, (f) eliminate the Owners" rights to demand that their Bonds 	 be purchased, or any mandatory tender or redemption of the Bonds, (g) extend the due date for the 	 purchase of Bonds put by the Owners thereof or call for mandatory tender or redemption or reduce 	 the purchase or redemption price of such Bonds, (h) create a lien ranking prior to or on a parity with 	 the lien of this Indenture on the property described in the Granting Clause of this Indenture not 	 otherwise provided for herein, or (i) deprive any Owner of the lien created by this Indenture on such 	 property. In addition, if moneys or Governmental Obligations have been deposited or set aside with 	 the Trustee pursuant to Article X for the payment of the Bonds and the Bonds shall not have in fact 	 been actually paid in full, no amendment to the provisions of that Article shall be made without the 	 consent of the Owners of each of those Bonds affected. 	 	 	Section 8.03. Effect of Consents. After an amendment or supplement becomes effective, it 	 will bind every Owner unless it makes a change described in any of the lettered clauses of the 	 preceding Section. In that case, the amendment or supplement will bind each Owner who consented 	 to it and each subsequent Owner of a Bond or portion of a Bond evidencing the same debt as the 	 consenting Owner"s Bond. 	 	 	Section 8.04. Notation on or Exchange of Bonds. If an amendment or supplement changes 	 the terms of a Bond, the Trustee may require the Owner to deliver it to the Trustee. The Trustee 	 may place an appropriate notation on the Bond about the changed terms and return it to the Owner. 	 Alternatively, if the Trustee, the Issuer, and the Company determine, the Issuer in exchange for the 	 Bond will issue and the Trustee will authenticate a new Bond that reflects the changed terms. 	 	 	Section 8.05. Execution and Delivery by Trustee of Amendments and Supplements. The 	 Trustee shall execute and deliver any amendment or supplement to the Indenture or the Bonds 	 authorized by this Article if the amendment or supplement does not adversely affect the rights, duties, 	 liabilities, or immunities of the Trustee. In signing such amendment or supplement, the Trustee will 	 be entitled to receive and (subject to Section 7.01) will be fully protected in relying on an opinion 	 of Bond Counsel stating that such amendment or supplement is authorized by this Indenture. 	 	 	Section 8.06. Company and Bank Consent Required. An amendment or supplement to this 	 Indenture or the Bonds shall not become effective unless the Company and the Bank shall deliver 	 to the Trustee their written consents to the amendment or supplement. The Company shall be 	 deemed to have consented if it shall fail to deliver a written objection to the Trustee within 30 days 	 after receipt by the Company of a proposed form of an amendment or supplement. 	 	 	Section 8.07. Notice to Owners. The Trustee shall cause notice of the execution of each 	 supplement or amendment to this Indenture or the Agreement to be mailed to the Owners. The 	 notice shall, at the option of the Trustee, either (a) briefly state the nature of the amendment or 	 supplement and that copies of it are on file with the Trustee for inspection by Owners or (b) enclose 	 a copy of such amendment or supplement. 	 	 Article IX 	 Amendment of Agreement, Guaranty, or Letter of Credit 	 	 	Section 9.01. Without Consent of Owners. The Issuer may enter into, and the Trustee may 	 consent to, any amendment of or supplement to the Agreement and the Trustee may enter into any 	 amendment of or supplement to the Guaranty, without notice to or consent of any Owner, if the 	 amendment or supplement is (a) required or permitted by the provisions of the Agreement, the 	 Guaranty, or this Indenture, (b) to cure any ambiguity, inconsistency, or formal defect or omission, 	 (c) in connection with any authorized amendment of or supplement to this Indenture, (d) to make 	 any change that does not materially adversely affect the rights of any Owner, (e) to amend the 	 description of the Project, provided the Trustee is provided an opinion of Bond Counsel to the effect 	 that such amendment will not adversely affect the excludability from gross income of interest on the 	 Bonds for federal income tax purposes, or (f) to facilitate the substitution of an Alternate Credit 	 Facility which is not an irrevocable letter of credit, but without modifying the payment terms of the 	 Bonds. 	 	 	Section 9.02. With Consent of Owners. If an amendment of or supplement to the Agreement 	 or the Guaranty without any consent of Owners is not permitted by the foregoing Section, the Issuer 	 may enter into, and the Trustee may consent to, such amendment or supplement (or in the case of 	 the Guaranty, the Trustee may enter into such amendment or supplement) with the consent of the 	 Owners of at least a majority in principal amount of the Bonds then outstanding. However, without 	 the consent of each Owner affected, no amendment or supplement may result in anything described 	 in the lettered clauses of Section 8.02. 	 	 	Section 9.03. Bank Consent Required. An amendment or supplement to the Agreement or 	 the Guaranty authorized by this Article shall not become effective unless the Bank delivers to the 	 Trustee its written consent to the amendment or supplement. 	 	 	Section 9.04. Modifications of Letter of Credit. No Letter of Credit may be modified without 	 the prior written consent of 100% of the Owners of the Bonds, except to (a) correct any formal 	 defects therein, (b) effect transfers thereof, (c) effect extensions thereof, (d) effect reductions and 	 reinstatements thereof in accordance with the terms of the Letter of Credit, (e) increase the stated 	 amount thereof, (f) effect any change which does not have a material adverse effect upon the 	 interests of the Owners, or (g) any amendment effective from and after a mandatory tender date 	 hereunder. Pursuant to this Indenture however, the Company has the right to obtain an Alternate 	 Credit Facility, subject to the requirements set forth therein without the consent of the Owners. 	 	 	Section 9.05. Release of Guaranty. In connection with an assignment described in Section 8.1 	 of the Agreement, the Trustee shall release the Guarantor from its obligations under the Guaranty 	 if so directed in writing by the Company and the Guarantor. In such event, the Bonds shall be 	 subject to mandatory tender pursuant to Section 2.04(e) hereof and the Trustee shall give the notice 	 to Owners described in said Section 2.04. No consent of the Owners or the Bank and no notice to 	 the Owners or the Bank other than that referenced above shall be required to be obtained or given 	 in connection with such release. Notwithstanding the foregoing, no such release shall then be 	 permitted if (a) the Bonds are then in the CP Rate Mode, or (b) if the Bonds are then in an 	 Adjustable Rate Period of greater than one year's duration, unless the release occurs on a date on 	 which the Bonds may be optionally redeemed pursuant to the Indenture and the mandatory tender 	 price payable upon the mandatory tender of Bonds as a result of such release includes a premium 	 equal to the redemption premium at that time payable pursuant to the optional redemption provisions 	 of the Indenture. 	 	 	 Article X 	 Discharge of Indenture 	 	 	Section 10.01. Bonds Deemed Paid; Discharge of Indenture. Any Bond will be deemed paid 	 for all purposes of this Indenture when (a) payment of the principal of and interest on the Bond to 	 the due date of such principal and interest (whether at maturity, upon redemption or otherwise) 	 either (i) has been made in accordance with the terms of the Bond or (ii) has been provided for by 	 depositing with the Trustee Available Moneys sufficient to make such payment and/or Government 	 Obligations (purchased with Available Moneys) maturing as to principal and interest in such amounts 	 and at such times as will, in the opinion of an independent certified pubic accountant delivered to 	 the Trustee, ensure the availability of sufficient moneys to make such payment, and (b) all 	 compensation and expenses of the Trustee pertaining to each Bond in respect of which such deposit 	 is made have been paid or provided for to the Trustee"s satisfaction. When a Bond is deemed paid, 	 it will no longer be secured by or entitled to the benefits of this Indenture or be an obligation of the 	 Issuer, except for payment from moneys or Government Obligations under clause (a)(ii) above. 	 	 	Notwithstanding the foregoing, no deposit under clause (a)(ii) of the first paragraph of this 	 Section shall be deemed a payment of a Bond until the Company or the Guarantor has furnished the 	 Trustee an opinion of Bond Counsel stating that the deposit of such cash or Government Obligations 	 will not cause the Bonds, or any portion thereof, to become "arbitrage bonds" within the meaning 	 of section 148 of the Code and (A) notice of redemption of the Bond is given in accordance with this 	 Indenture or, if the Bond is not to be redeemed or paid within the next 60 days, until the Company 	 has given the Trustee, in form satisfactory to the Trustee, irrevocable instructions (1) to notify, as 	 soon as practicable, the Owner of the Bond, in accordance with this Indenture, that the deposit 	 required by clause (a)(ii) above has been made with the Trustee and that the Bond is deemed to be 	 paid under this Article and stating the maturity or redemption date upon which moneys are to be 	 available for the payment of the principal of the Bond, and, if the Bond is to be redeemed rather 	 than paid at maturity, (2) to give notice of redemption as provided herein for such Bond, or (B) the 	 maturity of the Bond. In addition, notwithstanding the foregoing, if the Bonds are then in the Daily 	 Rate Mode or the Weekly Rate Mode, no deposit under clause (a)(ii) of the first paragraph of this 	 Section shall be deemed a payment of a Bond unless the Trustee receives written evidence from the 	 Rating Agency that such deposit would not result in a reduction or withdrawal of the ratings then 	 maintained on the Bonds. 	 	 	When all outstanding Bonds are deemed paid under the foregoing provision of this Section, 	 the Letter of Credit has been surrendered to the Bank for cancellation, and all amounts due and 	 payable to the Bank under the Reimbursement Agreement have been paid in full, the Trustee will 	 upon request acknowledge the discharge of the lien of this Indenture as to the Bonds, provided, 	 however that the obligations under Article II in respect of the optional tender rights of the Owners 	 of the Bonds and the transfer, exchange, registration, discharge from registration, and replacement 	 of Bonds shall survive the discharge of the lien of the Indenture. 	 	 	The Trustee shall provide each Rating Agency then rating the Bonds with at least 10 days prior 	 notice of any advance defeasance of the Bonds, together with a copy of the opinion of independent 	 certified public accountant described in the first paragraph of this Section and any opinion of counsel 	 delivered if Available Moneys described in clause (c) of the definition thereof are used to effect the 	 defeasance. The Trustee shall notify each Owner of the advance defeasance of the Bonds, within 10 	 days after such defeasance. 	 	 	Section 10.02. Application of Trust Money. The Trustee shall hold in trust moneys or 	 Governmental Obligations deposited with it pursuant to the preceding Section and shall apply the 	 deposited money and the money from the Governmental Obligations in accordance with this 	 Indenture only to the payment of principal of and interest on the Bonds and to the payment of the 	 purchase price of Bonds demanded to be purchased by Owners. 	 	 	Section 10.03. Repayment to Bank and Company. At such time as no Bonds remain unpaid 	 within the meaning of Section 10.01, the Trustee shall promptly pay first to the Bank (to the extent 	 the Bank certifies to the Trustee that the Company is indebted to it for amounts owed under the 	 Reimbursement Agreement) and then to the Company upon request (i) any excess money or 	 securities held by the Trustee at any time under this Article and (ii) any money held by the Trustee 	 under any provision of this Indenture for the payment of principal or interest or for the purchase of 	 Bonds that remains unclaimed for two years. 	 	 	 Article XI 	 Miscellaneous 	 	 	Section 11.01. Owners" Consent. Any consent or other instrument required by this Indenture 	 to be signed by Owners may be in any number of counterpart documents and may be signed by a 	 Owner or by the Owner"s agent appointed in writing. Proof of the execution of such instrument or 	 of the instrument appointing an agent and of the Ownership of Bonds, if made in the following 	 manner, shall be conclusive for any purposes of this Indenture with regard to any action taken by the 	 Trustee or the Tender Agent under the instrument: 	 	 	(a)	The fact and date of a person"s signing an instrument may be proved by the certificate 	 of any officer in any jurisdiction who by law has power to take acknowledgments within that 	 jurisdiction that the person signing the writing acknowledged before the officer the execution of the 	 writing, or by an affidavit of any witness to the signing. 	 	 	(b)	The fact of Ownership of Bonds, the amount or amounts, numbers and other 	 identification of such Bonds and the date of holding shall be proved by the registration books kept 	 pursuant to this Indenture. 	 	 	In determining whether the Owners of the required principal amount of Bonds outstanding 	 have taken any action under this Indenture (and solely for such purposes), Bonds owned by the 	 Company or any person controlling, controlled by, or under common control with the Company shall 	 be disregarded and deemed not to be outstanding, unless the Company shall be the Owner of 100% 	 of the Bonds. In determining whether the Trustee and the Tender Agent shall be protected in 	 relying on any such action, only Bonds which the Trustee knows to be so owned shall be disregarded. 	 	 	Any consent or other instrument shall be irrevocable and shall bind any subsequent Owner of 	 such Bond or any Bond delivered in substitution therefor. 	 	 	Section 11.02. Limitation of Rights. Nothing expressed or implied in this Indenture or the 	 Bonds shall give any person other than the Trustee, the Tender Agent, the Issuer, the Bank, the 	 Company, the Guarantor, the Remarketing Agent, and the Owners any right, remedy, or claim under 	 or with respect to this Indenture. 	 	 	Section 11.03. No Personal Liability of Issuer. No covenant, agreement, or obligation 	 contained herein or in the Bonds shall be deemed to be a covenant, agreement, or obligation of any 	 present or future officer, of the employee or agent of the Issuer in such person"s individual capacity, 	 and neither the officials or officers of the Issuer executing this Indenture or the Bonds shall be liable 	 personally on the Bonds or under this Indenture or be subject to any personal liability of 	 accountability by reason of the issuance, execution or delivery of the Bonds. No officer, employee, 	 or agent of the Issuer shall incur any personal liability with respect to any other action taken, or not 	 taken, by such person pursuant to this Indenture, the Agreement, or the Act provided such person 	 does not act with malicious intent. 	 	 	Section 11.04. Severability. If any provisions of this Indenture shall be held or deemed to be 	 or shall, in fact, be invalid, inoperative, or unenforceable, the same shall not affect any other 	 provision or provisions herein contained or render the same invalid, inoperative, or unenforceable 	 to any extent whatever. 	 	 	Section 11.05. Notices. Except as otherwise provided in this Indenture, all notices, hereunder 	 shall be sufficiently given and shall be deemed given when personally delivered or mailed by certified 	 mail, postage prepaid, or when sent by tested telecopy (receipt confirmed by telephone) or telegram, 	 addressed as follows: 	 	 	 	If to the Issuer: 	 	Grapevine Industrial Development Corporation 	 	c/o City of Grapevine 	 	413 South Main Street 	 	Grapevine, Texas 76051 	 	Attention: 	City Manager 	 	 	If to the Trustee: 	 	Bank One, Texas, NA 	 	P.O. Box 2604 	 	500 Throckmorton 	 	Fort Worth, Texas 76113-2604 	 	Attention: Corporate Trust Department 	 	 	If to the Tender Agent: 	 At its address specified in the certificate delivered by the Tender Agent in which it assumes 	 its duties hereunder. 	 	 	If to the Company: 	 	Trencor Jetco, Inc. 	 	P.O. box 2447 	 	Grapevine, Texas 76099-2447 	 	Attention: 	George Stuard 	 	 	If to the Guarantor: 	 	Astec Industries, Inc. 	 	4101 Jerome Avenue 	 	Chattanooga, Tennessee 37407 	 	Attention: Corporate Comptroller 	 	 	If to the Bank: 	 	The First National Bank of Chicago 	 	One First National Plaza 	 	Suite 0086 	 	Chicago, Illinois 60670-0086 	 	Attention: 	John D. Runger 	 	 	If to the Remarketing Agent: 	 	The First National Bank of Chicago 	 	One First National Plaza 	 	Suite 0463 	 	Chicago, Illinois 60670 	 	Attention: Municipal Bond Department/Short-Term Trading 	 	 	If to the Owner of any Bond: 	 The address of such Owner as reflected on the registration books maintained by the Trustee. 	 	 	 	If to the Rating Agency: 	 	 	Moody"s Investors Service 	 	99 Church Street 	 	New York, New York 10007 	 	Attention: Structured Finance 	 	 	Standard & Poor"s Corporation 	 	25 Broadway 	 	New York, New York 10004 	 	Attention: 	 	 	 A duplicate copy of each notice given hereunder by either party hereto shall be given to the Bank, 	 the Tender Agent, the Remarketing Agent, the Guarantor, and the Company. Any person or entity 	 listed above may, by notice given hereunder, designate any further or different addresses to which 	 subsequent notices, certificates, or other communications shall be sent. 	 	 	Section 11.06. Payments or Performance Due on Other Than Business Day. If the last day 	 for making any payment or taking any action under this Indenture falls on a day other than a 	 Business Day, such payment may be made, or such action may be taken, on the next succeeding 	 Business Day, and, if so made or taken, shall have the same effect as if made or taken on the date 	 required by this Indenture. 	 	 	Section 11.07. Execution of Counterparts. This Indenture may be executed in several 	 counterparts, each of which shall be an original and all of which shall constitute but one and the same 	 instrument. 	 	 	Section 11.08. Applicable Law. This Indenture shall be governed by and construed in 	 accordance with the laws of the State. 	 	 	Section 11.09. Notice to Texas Department of Commerce of Certain Matters. Upon the 	 occurrence of an event of default as a result of the Company's failure to make a payment under the 	 Agreement, or upon the occurrence of a Determination of Taxability, or upon notice by the Internal 	 Revenue Service that interest on the Bonds is or may be subject to federal income taxation, the 	 Trustee promptly upon becoming aware thereof shall give notice to the Texas Department of 	 Commerce at Box 12728, Capitol Station, Austin, Texas 78711, Attention of the Executive Director. 	 	 	Section 11.10. Exceptions to Requirements of Bank Consent. Notwithstanding any provision 	 of this Indenture to the contrary, no consent of or notice to the Bank shall be required under any 	 provision of this Indenture nor shall the Bank have any right to receive notice of, consent to, direct 	 or control any actions, restrictions, rights, remedies, waivers, or accelerations pursuant to any 	 provision of this Indenture during any time which: 	 	 	(a)	the Bank has wrongfully failed to honor a properly presented draw made under 	 and in compliance with the terms of the Letter of Credit; 	 	 	(b)	the Letter of Credit for any reason ceases to be valid and binding on the Bank 	 or is declared to be null and void, or the validity or enforceability of any provision of the 	 Letter of Credit is denied by the Bank or any governmental agency or authority, or the Bank 	 is denying further liability or obligation under the Letter of Credit, in all of the above cases 	 contrary to the terms of the Letter of Credit; 	 	 	(c)	a petition has been filed and is pending against the Bank under any bankruptcy, 	 reorganization, arrangement, insolvency, readjustment of debt, dissolution or liquidation law 	 of any jurisdiction, whether now or hereafter in effect, and has not been dismissed within 30 	 days after such filing; 	 	 	(d)	the Bank has filed a petition, which is pending, under any bankruptcy, 	 reorganization, arrangement, insolvency, readjustment of debt, dissolution, or liquidation law 	 of any jurisdiction, whether now or hereafter in effect, or has consented to the filing of any 	 petition against it under such law; or 	 	 	(e)	the Bank is dissolved or confiscated by action of government due to war or peace 	 time emergency or the United States government declares a moratorium on the Bank's 	 activities. 	 	 	 	 	 	In Witness Whereof, the Issuer has caused these presents to be signed in its name and on 	 its behalf by its duly authorized officers, and the Trustee, to evidence its acceptance of the trusts 	 hereby created, has caused these presents to be signed in its name and on its behalf by its duly 	 authorized officers, all as of the day and year first above written. 	 	 	 	GRAPEVINE INDUSTRIAL 	 	DEVELOPMENT CORPORATION 	 	 	 	 Attest: 	By: 	 Secretary	 President 	 	 	 	BANK ONE, TEXAS, NA 	 	 	 	 Attest: /s/ 								 						 By: /s/ 	 Authorized Officer	 Authorized Officer 	 	 Exhibit A 	 to Indenture of Trust 	 	 Neither the State of Texas, the City of Grapevine, Texas, nor any political corporation, subdivision, or agency thereof shall be obligated to pay the principal of, premium, if any, or interest on this Bond and neither the faith and credit nor the taxing power of the State of Texas, the City of Grapevine, Texas, nor any political corporation, subdivision, or agency thereof nor any assets of the Grapevine Industrial Development Corporation, other than those specifically pledged therefor, are pledged to the payment of the principal of, premium, if any, or interest on the Bond. 	 [FACE OF BOND]	 	 	 Grapevine Industrial Development Corporation 	 Industrial Development Revenue Bonds, Series 1994 	 (Trencor Jetco, Inc. Project) 	 	 	DATED DATE:	MATURITY DATE:	CUSIP NUMBER: 	 	 	April 1, 1994 	 	 	 	 Registered Owner: 	 	 Principal Amount: 	 	 	The Grapevine Industrial Development Corporation, a corporation acting on behalf of the City 	 of Grapevine (the "Unit"), State of Texas (the "State"), hereby promises to pay to the order of the 	 Registered Owner specified above, or registered assigns, the Principal Amount specified above on 	 the Maturity Date specified above (or earlier as hereinafter provided), and to pay interest on the 	 Principal Amount hereof from the date specified in the Indenture (hereinafter defined) at the rates 	 per annum and on the dates set forth herein (but only out of the revenues of the Issuer derived from 	 the Agreement, as hereinafter defined, or other moneys pledged therefor) and in accordance with 	 the provisions of the Development Corporation Act of 1979, Article 5190.6 Tex. Rev. Civ. Stat. Ann., 	 as amended (the "Act"). 	 	 	THIS BOND, TOGETHER WITH PREMIUM, IF ANY, AND THE INTEREST HEREON, IS 	 A SPECIAL AND LIMITED OBLIGATION OF THE ISSUER AND NEITHER THE ISSUER, THE 	 UNIT, NOR THE STATE OF TEXAS NOR ANY POLITICAL SUBDIVISION THEREOF, 	 INCLUDING THE ISSUER AND THE UNIT, SHALL BE OBLIGATED TO PAY THIS BOND, THE 	 PREMIUM, IF ANY, OR THE INTEREST HEREON OR OTHER COSTS INCIDENT THERETO 	 EXCEPT FROM FUNDS PLEDGED UNDER THE INDENTURE. NEITHER THE FAITH AND 	 CREDIT NOR THE TAXING POWER OF THE STATE, THE UNIT, OR ANY POLITICAL 	 CORPORATION, SUBDIVISION, AGENCY, OR INSTRUMENTALITY THEREOF IS PLEDGED 	 TO THE PAYMENT OF THE PRINCIPAL, PREMIUM, IF ANY, OR INTEREST ON THIS BOND. 	 	 	The principal of, premium, if any, and interest on this Bond are payable in lawful money of the 	 United States of America. The principal of and premium, if any, payable upon maturity or earlier 	 redemption of this Bond are payable when due upon the presentation and surrender hereof at the 	 corporate trust office of Bank One, Texas, NA, in Fort Worth, Texas, as trustee (the "Trustee"), or 	 any successor trustee. Each payment of interest on this Bond shall be payable to the Registered 	 Owner hereof as shown on the registration books kept by the Trustee at the close of business on the 	 Business Day (but, during an Adjustable Rate Period, the fifteenth day of the calendar month) next 	 preceding the date on which such interest becomes due and payable (herein, a "Record Date"). 	 Interest on this Bond shall be payable to the Registered Owner hereof by check mailed by first class 	 mail on the respective Interest Payment Dates (as hereinafter defined) to the address of such 	 Registered Owner as shown on the books kept by the Trustee at the close of business on the relevant 	 Record Date or such other address as is furnished to the Trustee (in form satisfactory to the Trustee) 	 by such Owner prior to such Record Date. Registered Owners of $1,000,000 or more in aggregate 	 principal amount of Bonds shall be entitled to receive interest payments by wire transfer by providing 	 written wire instructions to the Trustee before the Record Date. 	 	 ** 	[Reference is hereby made to the further provisions of this Bond set forth on the reverse side 	 hereof, which further provisions shall for all purposes have the same effect as if fully set forth in the 	 text of this Bond written above.*] 	 	 **	[This Bond shall not be valid or become obligatory for any purpose or be entitled to any 	 security or benefit under the Indenture until the Certificate of Authentication hereon shall have been 	 signed by the Trustee or the Tender Agent.] 	 	 	 	In Witness Whereof, the Issuer has caused this Bond to be executed in its name by the 	 manual or facsimile signature of its President or Vice President and attested with the manual or 	 facsimile signature of the Secretary of Assistant Secretary all as of the date first above written. 	 	 [Seal] 	 	 Attest:/s/ 	By:/s/ 	 By Authorized Officer	 Authorized Officer 	 	 	 **Certificate of Authentication 	 	 	This Bond is hereby authenticated as required by the within-referenced Indenture of Trust. 	 	 	 	 	 	 	Authorized Officer of Trustee or Tender Agent 	 	 	Date of Authentication: 	 	 	 [OFFICE OF THE COMPTROLLER	 	 OF PUBLIC ACCOUNTS		REGISTER NO. 	 OF THE STATE OF TEXAS	 /S/ 	 	 	 	I hereby certify that there is on file and of record in my office a certificate of the Attorney 	 General of the State of Texas to the effect that this Bond has been examined by him as required by 	 law, that he finds that it has been issued in conformity with the Constitution and laws of the State 	 of Texas, and that it is a valid and binding obligation of the Grapevine Industrial Development 	 Corporation; and that this Bond has this day been registered by me. 	 	 	 	Witness my hand and seal of office at Austin, Texas, /S/ 	 	 	 	 	 	Comptroller of Public Accounts of the 	 [SEAL]	State of Texas] 	 	 	 **Not utilized for Initial Bond 	 	 **[(Reverse of Bond)*] 	 	 	This Bond is authorized and issued under and pursuant to authority conferred by the Act, 	 certain proceedings of the Board of Directors of the Issuer and the Indenture of Trust dated as of 	 April 1, 1994 (the "Indenture") between the Issuer and the Trustee. Certain terms used and not 	 defined in this Bond are defined in the Indenture. This Bond is one of the Issuer"s duly authorized 	 Industrial Development Revenue Bonds, Series 1994 (Trencor Jetco, Inc. Project) (the "Bonds"), 	 which Bonds have been issued in the aggregate principal amount of $8,000,000 to provide funds to 	 make a loan to Trencor Jetco, Inc., a Texas corporation (the "Company") pursuant to a Loan 	 Agreement dated as of April 1, 1994 (the "Agreement") between the Issuer and the Company. The 	 proceeds of the Bonds will be used to finance a portion of the costs of acquisition, construction and 	 equipping of certain facilities (the "Project") located in the Unit. As security for the payment of the 	 Bonds, the Company has caused to be delivered to the Trustee a letter of credit (the "Initial Letter 	 of Credit") of The First National Bank of Chicago (the "Bank"), against which the Trustee shall be 	 entitled to draw, in accordance with the terms thereof, to pay when and as due, the principal or 	 purchase price of, and interest on, the Bonds during the term of the Initial Letter of Credit. Under 	 certain conditions, the Company may cause to be delivered an Alternate Credit Facility (an 	 "Alternate Credit Facility") in substitution for the Letter of Credit then in effect without the consent 	 of the Owners of the Bonds. The Initial Letter of Credit, together with any Alternate Credit Facility, 	 is hereinafter referred to as the "Letter of Credit". The Bonds are guaranteed by Astec Industries, 	 Inc., a Tennessee corporation (the "Guarantor"), the owner of 100% of the outstanding stock of the 	 Company, pursuant to a Guaranty Agreement dated April 1, 1994, between the Guarantor and the 	 Trustee. The Bonds are not secured by any lien on or security interest in the Project. 	 	 	The Bonds are issued under and entitled to the benefits of the Indenture. Pursuant to the 	 Indenture, the Issuer has pledged and assigned to the Trustee the Trust Estate as security for its 	 obligation to pay the principal or purchase price of, premium, if any, and interest on the Bonds. 	 Reference is made to the Indenture for a description of the Trust Estate and for the provisions 	 thereof with respect to the nature and extent of the security granted by the Issuer to the Trustee 	 thereunder, the rights, duties, and obligations of the Issuer and the Trustee, the rights of the 	 registered Owners of the Bonds, and the terms on which the Bonds are issued and secured, to all of 	 which provisions, and to all other provisions of the Indenture, the Registered Owner hereof by the 	 acceptance of this Bond assents. 	 	 I.	Weekly Rate Provisions 	 	 	Optional Tender. During a Weekly Rate Period, this Bond or any portion thereof in 	 Authorized Denominations (except during any period this Bond is a Pledged Bond or Company 	 Bond) shall be purchased on the demand of the registered Owner thereof on any Business Day at 	 a price equal to 100% of the principal amount thereof, plus accrued and unpaid interest thereon to 	 the date of purchase, upon delivery to the tender agent duly appointed in accordance with the 	 provisions of the Indenture (together with any successor tender agent, the "Tender Agent") at its 	 Principal Office, on any Business Day, of (a) a written irrevocable notice setting forth the information 	 required by the Indenture, including the date on which such Bond, or the portion thereof being 	 tendered for purchase, shall be so purchased, which date shall be a Business Day not prior to the 	 seventh day next succeeding the date of the delivery of such notice to the Tender Agent, together 	 with (b) this Bond, as provided in the Indenture; provided, that if the registered Owner of the 	 tendered Bond is an open-ended diversified management investment company (registered under the 	 Investment Company Act of 1940, as amended), the delivery required under this clause (b) need not 	 be made until the date such Bond is to be purchased from such registered Owner as provided in the 	 Indenture. Notwithstanding the foregoing, if the Bonds, are held in a Book-Entry System, separate 	 procedures for the optional tender of Bonds are set forth in the Indenture. 	 	 	Interest. During any period this Bond is in the Weekly Rate Mode, interest on this Bond shall 	 be paid on the first Business Day of each month next succeeding the Closing Date (if applicable), 	 each Weekly Rate Conversion Date, and on the Maturity Date specified above or such other date 	 as the outstanding principal amount of the Bonds is paid in full if the Bonds are in the Weekly Rate 	 Mode at such time (each, a "Weekly Rate Interest Payment Date"), and shall be computed on the 	 basis of a 365- or 366-day year, for the actual number of days elapsed. Interest on this Bond for each 	 Weekly Interest Period shall be calculated as provided below and in the Indenture. During each 	 Weekly Rate Period, "Weekly Interest Period" shall mean the period from and including the first day 	 of the Weekly Rate Period through and including the following Tuesday, and after the first Weekly 	 Interest Period of each Weekly Rate Period, from and including Wednesday of each week through 	 and including the following Tuesday, whether or not such days are Business Days, provided, however, 	 the initial Weekly Interest Period shall commence on the Closing Date and end on the following 	 Tuesday. 	 	 	On Tuesday (unless Tuesday is not a Business Day, then on the next preceding Monday; unless 	 Monday and Tuesday are not Business Days, then on the next subsequent Wednesday, whether or 	 not a Business Day) of each calendar week during a Weekly Rate Period, with respect to each 	 Weekly Interest Period, the Remarketing Agent shall determine the Weekly Rate for the ensuing or 	 current (in the case of determinations made on Wednesday) Weekly Interest Period. The 	 determination of the Weekly Rate by the Remarketing Agent shall be conclusive and binding. 	 	 	The Weekly Rate for each Weekly Interest Period determined by the Remarketing Agent shall 	 be the lowest rate of interest which will, in the sole judgment of the Remarketing Agent, having due 	 regard for prevailing financial market conditions, permit the Bonds to be remarketed at a price of par, 	 plus accrued interest, on the first day of the applicable Weekly Interest Period; provided that in no 	 case shall the Weekly Rate be more than the Maximum Rate. In the event no Weekly Rate is 	 determined by the Remarketing Agent for a Weekly Interest Period, the Weekly Rate for such 	 Weekly Interest Period shall be the rate from time to time established pursuant to the Indenture. 	 	 II.	Daily Rate Provisions 	 	 	Optional Tender. During a Daily Rate Period, this Bond or any portion thereof in Authorized 	 Denominations (except during any period this Bond is a Pledged Bond or Company Bond) shall be 	 purchased on the demand of the registered Owner thereof on any Business Day at a price equal to 	 100% of the principal amount thereof, plus accrued and unpaid interest thereon to the date of 	 purchase, upon delivery (by telecopy of otherwise) to the Tender Agent at its principal office, (a) by 	 10:30 a.m., New York time, on such Business Day, of a written irrevocable notice, which will be 	 effective upon receipt, setting forth the information required by the Indenture and (b) by 11:00 a.m., 	 New York time, on such Business Day, this Bond, as provided in the Indenture. Notwithstanding the 	 foregoing, if the Bonds are held in a Book-Entry System, separate procedures for the optional tender 	 of Bonds are set forth in the Indenture. 	 	 	Interest. During any period this Bond is in the Daily Rate Mode, interest on this Bond shall 	 be paid on the first Business Day of each month next succeeding the Closing Date (if applicable), 	 each Daily Rate Conversion Date, and on the Maturity Date specified above or such other date as 	 the outstanding principal amount of the Bonds is paid in full if the Bonds are in the Daily Rate Mode 	 at such time (each, a "Daily Rate Interest Payment Date"), and shall be computed on the basis of 	 a 365- or 366-day year, for the actual number of days elapsed. Interest on the Bonds for each Daily 	 Interest Period shall be calculated as provided below and in the Indenture. During each Daily Rate 	 Period, "Daily Interest Period" shall mean the period from and including the first day of the Daily 	 Rate Period to but excluding the immediately succeeding Business Day. 	 	 	On the first day of each Daily Interest Period, the Remarketing Agent shall determine the 	 Daily Rate for such Daily Interest Period. The determination of the Daily Rate by the Remarketing 	 Agent shall be conclusive and binding. 	 	 	The Daily Rate for each Daily Interest Period determined by the Remarketing Agent shall be 	 the lowest rate of interest which will, in the sole judgment of the Remarketing Agent, having due 	 regard for prevailing financial market conditions, permit the Bonds to be remarketed at a price of par, 	 plus accrued interest, on the first day of the applicable Daily Interest Period; provided that in no case 	 shall the Daily Rate be more than the Maximum Rate. In the event no Daily Rate is determined by 	 the Remarketing Agent for a Daily Interest Period, then the Bonds shall thereupon bear interest at 	 the last Daily Rate previously determined pursuant to the Indenture. 	 	 III. 	CP Rate Provisions 	 	 	From and after each CP Rate Conversion Date or a CP Rate Reset Date, as appropriate, to 	 the earlier of their redemption, the following Conversion Date, or the following CP Rate Reset Date, 	 the interest rate of this Bond shall be a CP Rate, determined as provided below and in the Indenture. 	 When the Bonds are in the CP Rate Mode, in the case of each CP Rate Period, on the first day 	 thereof, the Remarketing Agent shall determine (i) the duration of the CP Rate Period and (ii) the 	 CP Rate which shall apply during such CP Rate Period. The duration of the CP Rate Period so 	 determined shall be that which, in the sole judgment of the Remarketing Agent will provide the 	 lowest overall interest cost with respect to the Bonds, with due regard to prevailing financial market 	 conditions, foreseeable changes in such conditions, the anticipated duration of the period the Bonds 	 may remain in the CP Rate Mode, and such other factors which the Remarketing Agent, in its sole 	 judgment, shall deem relevant and economically advantageous to consider. Upon determination of 	 the duration of the CP Rate Period, the Remarketing Agent shall determine the CP Rate which shall 	 be in effect during such CP Rate Period, which shall be the lowest rate of interest which, in the sole 	 judgment of the Remarketing Agent, having due regard to prevailing financial market conditions, will 	 permit the Bonds to be sold at par, plus accrued interest, on the first day of such CP Rate Period. 	 Notwithstanding the foregoing, the CP Rate so determined shall not be more than the Maximum 	 Rate. Unless and until the Company elects to effect a conversion of the Bonds from the CP Rate 	 Mode to another Mode, the Remarketing Agent shall continually redetermine the duration of, and 	 the CP Rate to be effective during each new CP Rate Period, which will commence, without further 	 action on the part of the Company on each CP Rate Reset Date. If on any CP Rate Reset Date the 	 Remarketing Agent shall fail to determine either the duration of, or the CP Rate to be effective 	 during the CP Rate Period which commences on such date, then, without further action on the part 	 of the Company, the Bonds shall thereupon bear interest at the Weekly Rate determined pursuant 	 to the Indenture. Each determination by the Remarketing Agent shall be conclusive and binding. 	 While the Bonds are in the CP Rate Mode, interest on this Bond will be payable on the first Business 	 Day which follows each CP Rate Period, and shall be computed on the basis of a 365- or 366-day 	 year, and the actual number of days elapsed. 	 	 	 IV.	 Adjustable Rate Provisions 	 	 	From and after each Adjustable Rate Conversion Date or Adjustable Rate Reset Date, the 	 interest rate on this Bond shall be an Adjustable Rate, determined as provided below and in the 	 Indenture. When the Bonds are in the Adjustable Rate Mode, the Bonds will remain in such Mode 	 for as long as the Company continues to deliver timely conversion notices specifying the duration of 	 the next Adjustable Rate Period. The Remarketing Agent, on or prior to the commencement of each 	 Adjustable Rate Period, shall determine the Adjustable Rate to be borne by the Bonds during such 	 Adjustable Rate Period, which will be the lowest rate which, in its sole judgment having due regard 	 for prevailing financial market conditions, will permit the Bonds to be sold at par on the first day of 	 such Adjustable Rate Period. Notwithstanding the foregoing, the Adjustable Rate shall not be more 	 than the Maximum Rate. In the event no Adjustable Rate is determined by the Remarketing Agent 	 for an Adjustable Rate Period, then the Bonds shall bear interest as provided in the Indenture. 	 	 	During each Adjustable Rate Period, interest on this Bond shall be paid on each Adjustable 	 Rate Interest Payment Date and shall be computed on the basis of a 360-day year consisting of twelve 	 30-day months. 	 	 V.	Conversion Provisions 	 	 	The interest rate Mode of this Bond shall be converted from one Mode to another Mode, or 	 from an Adjustable Rate Period of one duration to an Adjustable Rate Period of the same or a 	 different duration within the Adjustable Rate Mode, if the Company shall give notice as provided in 	 the Indenture of its election to effect such conversion, specifying in such notice the date on which 	 the Conversion Date will occur (which date shall be at least 25 days after such notice is given) and, 	 if the conversion is to an Adjustable Rate Period, specifying the Interest Payment Date which shall 	 be the day following the last day of such Adjustable Rate Period (which Adjustable Rate Period shall 	 be of a duration of at least six months). The Bonds shall be subject to mandatory tender and 	 purchase on the Conversion Date. In the event any condition precedent to the conversion of the 	 interest rate Mode of this Bond from one Mode to another Mode, or from an Adjustable Rate 	 Period of one duration to an Adjustable Rate Period of the same or a different duration, is not 	 satisfied, this Bond shall nonetheless be subject to mandatory tender on the Conversion Date and the 	 Bonds shall commence bearing interest on the Conversion Date as provided in the Indenture. 	 	 VI.	 Mandatory Tender 	 	 	All Bonds are subject to mandatory tender in whole by the Owners to the Tender Agent at its 	 Principal Office on each date described below: 	 	 	(a)	On each Conversion Date; 	 	 	(b)	On each CP Rate Reset Date; 	 	 	(c)	On the second Business Day prior to the expiration or termination of the Letter of 	 Credit (except as provided in the Indenture), if the Trustee has not received evidence satisfactory to 	 it as required by the Indenture by the 25th day preceding the scheduled expiration or termination 	 date of the Letter of Credit of either an extension of the then existing Letter of Credit or the 	 issuance of an Alternate Credit Facility meeting the requirements set forth therefor in the 	 Agreement, including the Maintenance of Rating requirement (as defined therein); 	 	 	(d)	On the date of substitution of an Alternate Credit Facility for the then existing Letter 	 of Credit if the Trustee has not received evidence of a Maintenance of Rating with respect thereto 	 by the 25th day preceding such substitution date; 	 	 	(e)	On each optional redemption date pursuant to the Indenture for which the Company 	 has elected to purchase Bonds in lieu of optional redemption pursuant to the Indenture; and 	 	 	(f)	On the date on which the Guaranty is released as provided in the Indenture. 	 	 	The purchase price of Bonds subject to mandatory tender shall be 100% of the principal 	 amount thereof (except in the case of a mandatory tender described in paragraph (c), (d), (e), or (f) 	 above, during, but prior to the expiration date of, an Adjustable Rate Period, in which case the 	 purchase price shall include a premium equal to the then applicable optional redemption premium, 	 if any, on the Bonds, as set forth in the Indenture), plus accrued interest, if any, to the mandatory 	 tender date. Not later than 20 days prior to any mandatory tender date, the Trustee shall mail notice 	 to all Owners of Bonds subject to mandatory tender on such date stating that (1) due to the 	 occurrence of one of the events described above (which event shall be specified), such Owner"s 	 Bonds will be subject to mandatory tender to the Tender Agent at its Principal Office on the 	 mandatory tender date at the purchase price described above, and (2) interest with respect to Bonds 	 which are not tendered on the mandatory tender date will cease to accrue provided Available Moneys 	 for such purchase are on deposit with the Tender Agent on the mandatory tender date. Notice of 	 mandatory tenders described in paragraphs (a) and (e) above shall be given as part of the notice of 	 conversion or optional redemption referenced above. No failure on the part of the Tender Agent 	 to give such notice shall affect the requirement that Bonds be tendered on the mandatory tender 	 date. 	 	 	Any Bond subject to mandatory tender which is not tendered on or before the mandatory 	 tender date shall, if Available Moneys sufficient and available for the purchase of such Bonds have 	 been deposited with the Tender Agent on the mandatory tender date, be deemed to have been 	 tendered for purchase on the mandatory tender date, and from and after such date, interest will no 	 longer accrue on such Bonds. Owners of such Bonds shall have no rights or benefits under the 	 Indenture with respect to such Bonds other than to receive the purchase price for such Bonds upon 	 surrender of such Bonds to the Tender Agent. 	 	 VII.	 Redemption of Bonds 	 	 	The Bonds shall be subject to optional redemption only as follows: 	 	 	a.	Weekly Rate Mode, CP Rate Mode, or Daily Rate Mode. While the Bonds are in the 	 Weekly Rate Mode or the Daily Rate Mode, they are subject to optional redemption, in whole or 	 in part on any Business Day in Authorized Denominations, and while the Bonds are in the CP Rate 	 Mode, they are subject to optional redemption in whole or in part in Authorized Denominations on 	 any Interest Payment Date, at the direction of the Company, at a redemption price equal to 100% 	 of the principal amount of the Bond to be redeemed, plus accrued interest thereon to the redemption 	 date. 	 	 	b.	Adjustable Rate Mode. While the Bonds are in the Adjustable Rate Mode, they are 	 subject to optional redemption in whole or in part on any date, at the direction of the Company, only 	 on the dates and at the applicable redemption prices set forth in the Indenture. 	 	 	While the Bonds are in the Adjustable Rate Mode or the CP Rate Mode, the Bonds are 	 subject to extraordinary optional redemption in whole on any date at a redemption price equal to the 	 principal amount of Bonds plus accrued interest to the redemption date, without premium, upon the 	 occurrence of certain events specified in the Indenture. 	 	 	The Bonds in any Mode are subject to mandatory redemption in whole on the next date for 	 which timely notice of redemption can be given by the Trustee after the occurrence of a 	 Determination of Taxability at a redemption price equal to the aggregate principal amount of the 	 Bonds plus accrued interest thereon to the redemption date, without premium. 	 	 	At least 30 days prior to any redemption of Bonds, the Trustee shall cause notice of the call 	 for redemption to be sent by first class mail, postage prepaid, to the Owner of each Bond to be 	 redeemed at the address of such Owner shown on the registration books maintained by the Trustee. 	 Neither the failure to give any such notice nor any defect in any notice so mailed shall affect the 	 sufficiency or the validity of any proceedings for the redemption of the Bonds. 	 	 	If Available Moneys are deposited in the Bond Fund on the date Bonds are to be redeemed, 	 Bonds or portions thereof redeemed shall no longer be secured by this Indenture and shall not be 	 deemed to be outstanding under the provisions of this Indenture. Interest shall not continue to 	 accrue on the Bonds after the date fixed for redemption, so long as Available Moneys are on deposit 	 to pay all principal of, premium, if any, and interest accrued on the Bonds on such date. However, 	 if Available Moneys shall not be on deposit on the redemption date, such Bonds or portions thereof 	 shall continue to bear interest until paid at the same rate as they would have borne had they not been 	 called for redemption. 	 	 	Any partial redemption of Bonds shall be made only in integral multiples of $100,000. If fewer 	 than all of the Bonds shall be called for redemption, the portion of Bonds to be redeemed shall be 	 selected by the Trustee as provided in the Indenture. 	 	 VIII.	General Provisions 	 	 	Except as provided in the Indenture, the Ownership of this Bond may be transferred (in 	 Authorized Denominations) only upon presentation and surrender of this Bond at the corporate trust 	 office of the Trustee, together with an assignment duly executed by the Registered Owner hereof or 	 his duly authorized attorney-in-fact in such form as shall be satisfactory to the Trustee. 	 	 	Provisions may be made for the payment of amounts represented by the Bonds as provided in 	 the Indenture, in which event all liability of the Issuer to the Owners of the applicable Bonds for the 	 payment of such Bonds shall forthwith cease, terminate, and be completely discharged, and thereupon 	 it shall be the duty of the Trustee to hold such funds (but only for the period specified and as 	 provided in the Indenture), without liability for interest thereon, for the benefit of the Owners of 	 such Bonds, who shall thereafter be restricted exclusively to such funds for any claims of whatever 	 nature under the Indenture or on, or with respect to, said Bonds. 	 	 	It is hereby certified and covenanted that this Bond has been duly and validly authorized, 	 issued, and delivered; that all acts, conditions, and things required or proper to be performed, exist 	 and be done precedent to or in the authorization, issuance, and delivery of this Bond have been 	 performed, exist, and have been done in accordance with law. 	 	 	The Bonds are secured by the Indenture, whereunder the Trustee undertakes to enforce the 	 rights of the Owners of the Bonds and to perform other duties to the extent and under the conditions 	 stated in the Indenture. In case an Event of Default shall occur, the principal of and interest on the 	 Bonds then outstanding may, and, under certain circumstances, shall, be declared to be due and 	 payable immediately upon the conditions and in the manner provided in the Indenture. Under the 	 circumstances and conditions provided in the Indenture, the Trustee may, or shall, waive any Event 	 of Default under the Indenture and its consequences. 	 	 	The Issuer has reserved the right to amend the Indenture, with the consent of the Bank, as 	 provided therein. Under some (but not all) circumstances, amendments thereto must also be 	 approved by the Owners of either at least a majority or 100% in aggregate principal amount of the 	 outstanding Bonds. 	 	 (Form of Assignment) 	 	 	For value received, the undersigned hereby sells, assigns, and transfers unto 	 ___________________ the within Bond, and does hereby irrevocably constitute and appoint 	 ___________________, attorney to transfer such Bond on the books kept for registration and transfer 	 of the within Bond, with full power of substitution in the premises. 	 	 	Dated: __________________ 	 	 Note: The signature to this Assignment must correspond with the name as it appears upon the face 	 of the within Bond in every particular, without enlargement or alteration or any change whatsoever. 	 	 Signature guaranteed by: 	 	 _______________________________________Note: The signature to this assignment must correspond 	 with the name as it appears upon the face of the within Bond in every particular, without alteration 	 or enlargement or any change whatever. Signature(s) must be guaranteed by an "eligible guarantor 	 institution" meeting the requirements of the Trustee, which requirements include membership or 	 participation in Stamp or such other "signature guaranty program" as may be determined by the 	 Trustee in addition to or in substitution for Stamp, all in accordance with the Securities Exchange 	 Act of 1934, as amended. 	 	 [Form of Registration Information] 	 	 	Under the terms of the Indenture, the Trustee will register a Bond in the name of a transferee 	 only if the Owner of such Bond (or his duly authorized representative) provides as much of the 	 information requested below as is applicable to such Owner prior to submitting this Bond for transfer. 	 	 Name: _______________________________________ 	 	 Address: _____________________________________ 	 Social Security or Employer Identification Number: _______________________ 	 	 If a Trust, Name, and Address of Trustee(s) and Date of Trust: __________________ 	 	 	 	 Neither the State of Texas, the City of Grapevine, Texas, nor any political corporation, 	 subdivision, or agency thereof shall be obligated to pay the principal of, premium, if any, 	 or interest on this Bond and neither the faith and credit nor the taxing power of the 	 State of Texas, the City of Grapevine, Texas, nor any political corporation, subdivision, 	 or agency thereof nor any assets of the Grapevine Industrial Development Corporation, 	 other than those specifically pledged therefor, are pledged to the payment of the 	 principal of, premium, if any, or interest on the Bond. 	 	 	 No. T-1 $8,000,000 	 	 	 Grapevine Industrial Development Corporation 	 Industrial Development Revenue Bonds, Series 1994 	 (Trencor Jetco, Inc. Project) 	 	 	DATED DATE:	MATURITY DATE:	CUSIP NUMBER: 	 	 	April 1, 1994 	 April 1, 2019 	 	 	 Registered Owner: CEDE & CO. 	 	 Principal Amount: EIGHT MILLION DOLLARS 	 	 	The Grapevine Industrial Development Corporation, a corporation acting on behalf of the City 	 of Grapevine (the "Unit"), State of Texas (the "State"), hereby promises to pay to the order of the 	 Registered Owner specified above, or registered assigns, the Principal Amount specified above on 	 the Maturity Date specified above (or earlier as hereinafter provided), and to pay interest on the 	 Principal Amount hereof from the date specified in the Indenture (hereinafter defined) at the rates 	 per annum and on the dates set forth herein (but only out of the revenues of the Issuer derived from 	 the Agreement, as hereinafter defined, or other moneys pledged therefor) and in accordance with 	 the provisions of the Development Corporation Act of 1979, Article 5190.6 Tex. Rev. Civ. Stat. Ann., 	 as amended (the "Act"). 	 	 	THIS BOND, TOGETHER WITH PREMIUM, IF ANY, AND THE INTEREST HEREON, IS 	 A SPECIAL AND LIMITED OBLIGATION OF THE ISSUER AND NEITHER THE ISSUER, THE 	 UNIT, NOR THE STATE OF TEXAS NOR ANY POLITICAL SUBDIVISION THEREOF, 	 INCLUDING THE ISSUER AND THE UNIT, SHALL BE OBLIGATED TO PAY THIS BOND, THE 	 PREMIUM, IF ANY, OR THE INTEREST HEREON OR OTHER COSTS INCIDENT THERETO 	 EXCEPT FROM FUNDS PLEDGED UNDER THE INDENTURE. NEITHER THE FAITH AND 	 CREDIT NOR THE TAXING POWER OF THE STATE, THE UNIT, OR ANY POLITICAL 	 CORPORATION, SUBDIVISION, AGENCY, OR INSTRUMENTALITY THEREOF IS PLEDGED 	 TO THE PAYMENT OF THE PRINCIPAL, PREMIUM, IF ANY, OR INTEREST ON THIS BOND. 	 	 	The principal of, premium, if any, and interest on this Bond are payable in lawful money of the 	 United States of America. The principal of and premium, if any, payable upon maturity or earlier 	 redemption of this Bond are payable when due upon the presentation and surrender hereof at the 	 corporate trust office of Bank One, Texas, NA, in Fort Worth, Texas, as trustee (the "Trustee"), or 	 any successor trustee. Each payment of interest on this Bond shall be payable to the Registered 	 Owner hereof as shown on the registration books kept by the Trustee at the close of business on the 	 Business Day (but, during an Adjustable Rate Period, the fifteenth day of the calendar month) next 	 preceding the date on which such interest becomes due and payable (herein, a "Record Date"). 	 Interest on this Bond shall be payable to the Registered Owner hereof by check mailed by first class 	 mail on the respective Interest Payment Dates (as hereinafter defined) to the address of such 	 Registered Owner as shown on the books kept by the Trustee at the close of business on the relevant 	 Record Date or such other address as is furnished to the Trustee (in form satisfactory to the Trustee) 	 by such Owner prior to such Record Date. Registered Owners of $1,000,000 or more in aggregate 	 principal amount of Bonds shall be entitled to receive interest payments by wire transfer by providing 	 written wire instructions to the Trustee before the Record Date. 	 	 	This Bond is authorized and issued under and pursuant to authority conferred by the Act, 	 certain proceedings of the Board of Directors of the Issuer and the Indenture of Trust dated as of 	 April 1, 1994 (the "Indenture") between the Issuer and the Trustee. Certain terms used and not 	 defined in this Bond are defined in the Indenture. This Bond is one of the Issuer"s duly authorized 	 Industrial Development Revenue Bonds, Series 1994 (Trencor Jetco, Inc. Project) (the "Bonds"), 	 which Bonds have been issued in the aggregate principal amount of $8,000,000 to provide funds to 	 make a loan to Trencor Jetco, Inc., a Texas corporation (the "Company") pursuant to a Loan 	 Agreement dated as of April 1, 1994 (the "Agreement") between the Issuer and the Company. The 	 proceeds of the Bonds will be used to finance a portion of the costs of acquisition, construction and 	 equipping of certain facilities (the "Project") located in the Unit. As security for the payment of the 	 Bonds, the Company has caused to be delivered to the Trustee a letter of credit (the "Initial Letter 	 of Credit") of The First National Bank of Chicago (the "Bank"), against which the Trustee shall be 	 entitled to draw, in accordance with the terms thereof, to pay when and as due, the principal or 	 purchase price of, and interest on, the Bonds during the term of the Initial Letter of Credit. Under 	 certain conditions, the Company may cause to be delivered an Alternate Credit Facility (an 	 "Alternate Credit Facility") in substitution for the Letter of Credit then in effect without the consent 	 of the Owners of the Bonds. The Initial Letter of Credit, together with any Alternate Credit Facility, 	 is hereinafter referred to as the "Letter of Credit". The Bonds are guaranteed by Astec Industries, 	 Inc., a Tennessee corporation (the "Guarantor"), the owner of 100% of the outstanding stock of the 	 Company, pursuant to a Guaranty Agreement dated April 1, 1994, between the Guarantor and the 	 Trustee. The Bonds are not secured by any lien on or security interest in the Project. 	 	 	The Bonds are issued under and entitled to the benefits of the Indenture. Pursuant to the 	 Indenture, the Issuer has pledged and assigned to the Trustee the Trust Estate as security for its 	 obligation to pay the principal or purchase price of, premium, if any, and interest on the Bonds. 	 Reference is made to the Indenture for a description of the Trust Estate and for the provisions 	 thereof with respect to the nature and extent of the security granted by the Issuer to the Trustee 	 thereunder, the rights, duties, and obligations of the Issuer and the Trustee, the rights of the 	 registered Owners of the Bonds, and the terms on which the Bonds are issued and secured, to all of 	 which provisions, and to all other provisions of the Indenture, the Registered Owner hereof by the 	 acceptance of this Bond assents. 	 	 I.	Weekly Rate Provisions 	 	 	Optional Tender. During a Weekly Rate Period, this Bond or any portion thereof in 	 Authorized Denominations (except during any period this Bond is a Pledged Bond or Company 	 Bond) shall be purchased on the demand of the registered Owner thereof on any Business Day at 	 a price equal to 100% of the principal amount thereof, plus accrued and unpaid interest thereon to 	 the date of purchase, upon delivery to the tender agent duly appointed in accordance with the 	 provisions of the Indenture (together with any successor tender agent, the "Tender Agent") at its 	 Principal Office, on any Business Day, of (a) a written irrevocable notice setting forth the information 	 required by the Indenture, including the date on which such Bond, or the portion thereof being 	 tendered for purchase, shall be so purchased, which date shall be a Business Day not prior to the 	 seventh day next succeeding the date of the delivery of such notice to the Tender Agent, together 	 with (b) this Bond, as provided in the Indenture; provided, that if the registered Owner of the 	 tendered Bond is an open-ended diversified management investment company (registered under the 	 Investment Company Act of 1940, as amended), the delivery required under this clause (b) need not 	 be made until the date such Bond is to be purchased from such registered Owner as provided in the 	 Indenture. Notwithstanding the foregoing, if the Bonds, are held in a Book-Entry System, separate 	 procedures for the optional tender of Bonds are set forth in the Indenture. 	 	 	Interest. During any period this Bond is in the Weekly Rate Mode, interest on this Bond shall 	 be paid on the first Business Day of each month next succeeding the Closing Date (if applicable), 	 each Weekly Rate Conversion Date, and on the Maturity Date specified above or such other date 	 as the outstanding principal amount of the Bonds is paid in full if the Bonds are in the Weekly Rate 	 Mode at such time (each, a "Weekly Rate Interest Payment Date"), and shall be computed on the 	 basis of a 365- or 366-day year, for the actual number of days elapsed. Interest on this Bond for each 	 Weekly Interest Period shall be calculated as provided below and in the Indenture. During each 	 Weekly Rate Period, "Weekly Interest Period" shall mean the period from and including the first day 	 of the Weekly Rate Period through and including the following Tuesday, and after the first Weekly 	 Interest Period of each Weekly Rate Period, from and including Wednesday of each week through 	 and including the following Tuesday, whether or not such days are Business Days, provided, however, 	 the initial Weekly Interest Period shall commence on the Closing Date and end on the following 	 Tuesday. 	 	 	On Tuesday (unless Tuesday is not a Business Day, then on the next preceding Monday; unless 	 Monday and Tuesday are not Business Days, then on the next subsequent Wednesday, whether or 	 not a Business Day) of each calendar week during a Weekly Rate Period, with respect to each 	 Weekly Interest Period, the Remarketing Agent shall determine the Weekly Rate for the ensuing or 	 current (in the case of determinations made on Wednesday) Weekly Interest Period. The 	 determination of the Weekly Rate by the Remarketing Agent shall be conclusive and binding. 	 	 	The Weekly Rate for each Weekly Interest Period determined by the Remarketing Agent shall 	 be the lowest rate of interest which will, in the sole judgment of the Remarketing Agent, having due 	 regard for prevailing financial market conditions, permit the Bonds to be remarketed at a price of par, 	 plus accrued interest, on the first day of the applicable Weekly Interest Period; provided that in no 	 case shall the Weekly Rate be more than the Maximum Rate. In the event no Weekly Rate is 	 determined by the Remarketing Agent for a Weekly Interest Period, the Weekly Rate for such 	 Weekly Interest Period shall be the rate from time to time established pursuant to the Indenture. 	 	 II.	Daily Rate Provisions 	 	 	Optional Tender. During a Daily Rate Period, this Bond or any portion thereof in Authorized 	 Denominations (except during any period this Bond is a Pledged Bond or Company Bond) shall be 	 purchased on the demand of the registered Owner thereof on any Business Day at a price equal to 	 100% of the principal amount thereof, plus accrued and unpaid interest thereon to the date of 	 purchase, upon delivery (by telecopy of otherwise) to the Tender Agent at its principal office, (a) by 	 10:30 a.m., New York time, on such Business Day, of a written irrevocable notice, which will be 	 effective upon receipt, setting forth the information required by the Indenture and (b) by 11:00 a.m., 	 New York time, on such Business Day, this Bond, as provided in the Indenture. Notwithstanding the 	 foregoing, if the Bonds are held in a Book-Entry System, separate procedures for the optional tender 	 of Bonds are set forth in the Indenture. 	 	 	Interest. During any period this Bond is in the Daily Rate Mode, interest on this Bond shall 	 be paid on the first Business Day of each month next succeeding the Closing Date (if applicable), 	 each Daily Rate Conversion Date, and on the Maturity Date specified above or such other date as 	 the outstanding principal amount of the Bonds is paid in full if the Bonds are in the Daily Rate Mode 	 at such time (each, a "Daily Rate Interest Payment Date"), and shall be computed on the basis of 	 a 365- or 366-day year, for the actual number of days elapsed. Interest on the Bonds for each Daily 	 Interest Period shall be calculated as provided below and in the Indenture. During each Daily Rate 	 Period, "Daily Interest Period" shall mean the period from and including the first day of the Daily 	 Rate Period to but excluding the immediately succeeding Business Day. 	 	 	On the first day of each Daily Interest Period, the Remarketing Agent shall determine the 	 Daily Rate for such Daily Interest Period. The determination of the Daily Rate by the Remarketing 	 Agent shall be conclusive and binding. 	 	 	The Daily Rate for each Daily Interest Period determined by the Remarketing Agent shall be 	 the lowest rate of interest which will, in the sole judgment of the Remarketing Agent, having due 	 regard for prevailing financial market conditions, permit the Bonds to be remarketed at a price of par, 	 plus accrued interest, on the first day of the applicable Daily Interest Period; provided that in no case 	 shall the Daily Rate be more than the Maximum Rate. In the event no Daily Rate is determined by 	 the Remarketing Agent for a Daily Interest Period, then the Bonds shall thereupon bear interest at 	 the last Daily Rate previously determined pursuant to the Indenture. 	 	 III. 	CP Rate Provisions 	 	 	From and after each CP Rate Conversion Date or a CP Rate Reset Date, as appropriate, to 	 the earlier of their redemption, the following Conversion Date, or the following CP Rate Reset Date, 	 the interest rate of this Bond shall be a CP Rate, determined as provided below and in the Indenture. 	 When the Bonds are in the CP Rate Mode, in the case of each CP Rate Period, on the first day 	 thereof, the Remarketing Agent shall determine (i) the duration of the CP Rate Period and (ii) the 	 CP Rate which shall apply during such CP Rate Period. The duration of the CP Rate Period so 	 determined shall be that which, in the sole judgment of the Remarketing Agent will provide the 	 lowest overall interest cost with respect to the Bonds, with due regard to prevailing financial market 	 conditions, foreseeable changes in such conditions, the anticipated duration of the period the Bonds 	 may remain in the CP Rate Mode, and such other factors which the Remarketing Agent, in its sole 	 judgment, shall deem relevant and economically advantageous to consider. Upon determination of 	 the duration of the CP Rate Period, the Remarketing Agent shall determine the CP Rate which shall 	 be in effect during such CP Rate Period, which shall be the lowest rate of interest which, in the sole 	 judgment of the Remarketing Agent, having due regard to prevailing financial market conditions, will 	 permit the Bonds to be sold at par, plus accrued interest, on the first day of such CP Rate Period. 	 Notwithstanding the foregoing, the CP Rate so determined shall not be more than the Maximum 	 Rate. Unless and until the Company elects to effect a conversion of the Bonds from the CP Rate 	 Mode to another Mode, the Remarketing Agent shall continually redetermine the duration of, and 	 the CP Rate to be effective during each new CP Rate Period, which will commence, without further 	 action on the part of the Company on each CP Rate Reset Date. If on any CP Rate Reset Date the 	 Remarketing Agent shall fail to determine either the duration of, or the CP Rate to be effective 	 during the CP Rate Period which commences on such date, then, without further action on the part 	 of the Company, the Bonds shall thereupon bear interest at the Weekly Rate determined pursuant 	 to the Indenture. Each determination by the Remarketing Agent shall be conclusive and binding. 	 While the Bonds are in the CP Rate Mode, interest on this Bond will be payable on the first Business 	 Day which follows each CP Rate Period, and shall be computed on the basis of a 365- or 366-day 	 year, and the actual number of days elapsed. 	 	 IV.	 Adjustable Rate Provisions 	 	 	From and after each Adjustable Rate Conversion Date or Adjustable Rate Reset Date, the 	 interest rate on this Bond shall be an Adjustable Rate, determined as provided below and in the 	 Indenture. When the Bonds are in the Adjustable Rate Mode, the Bonds will remain in such Mode 	 for as long as the Company continues to deliver timely conversion notices specifying the duration of 	 the next Adjustable Rate Period. The Remarketing Agent, on or prior to the commencement of each 	 Adjustable Rate Period, shall determine the Adjustable Rate to be borne by the Bonds during such 	 Adjustable Rate Period, which will be the lowest rate which, in its sole judgment having due regard 	 for prevailing financial market conditions, will permit the Bonds to be sold at par on the first day of 	 such Adjustable Rate Period. Notwithstanding the foregoing, the Adjustable Rate shall not be more 	 than the Maximum Rate. In the event no Adjustable Rate is determined by the Remarketing Agent 	 for an Adjustable Rate Period, then the Bonds shall bear interest as provided in the Indenture. 	 	 	During each Adjustable Rate Period, interest on this Bond shall be paid on each Adjustable 	 Rate Interest Payment Date and shall be computed on the basis of a 360-day year consisting of twelve 	 30-day months. 	 	 V.	Conversion Provisions 	 	 	The interest rate Mode of this Bond shall be converted from one Mode to another Mode, or 	 from an Adjustable Rate Period of one duration to an Adjustable Rate Period of the same or a 	 different duration within the Adjustable Rate Mode, if the Company shall give notice as provided in 	 the Indenture of its election to effect such conversion, specifying in such notice the date on which 	 the Conversion Date will occur (which date shall be at least 25 days after such notice is given) and, 	 if the conversion is to an Adjustable Rate Period, specifying the Interest Payment Date which shall 	 be the day following the last day of such Adjustable Rate Period (which Adjustable Rate Period shall 	 be of a duration of at least six months). The Bonds shall be subject to mandatory tender and 	 purchase on the Conversion Date. In the event any condition precedent to the conversion of the 	 interest rate Mode of this Bond from one Mode to another Mode, or from an Adjustable Rate 	 Period of one duration to an Adjustable Rate Period of the same or a different duration, is not 	 satisfied, this Bond shall nonetheless be subject to mandatory tender on the Conversion Date and the 	 Bonds shall commence bearing interest on the Conversion Date as provided in the Indenture. 	 	 VI.	 Mandatory Tender 	 	 	All Bonds are subject to mandatory tender in whole by the Owners to the Tender Agent at its 	 Principal Office on each date described below: 	 	 	(a)	On each Conversion Date; 	 	 	(b)	On each CP Rate Reset Date; 	 	 	(c)	On the second Business Day prior to the expiration or termination of the Letter of 	 Credit (except as provided in the Indenture), if the Trustee has not received evidence satisfactory to 	 it as required by the Indenture by the 25th day preceding the scheduled expiration or termination 	 date of the Letter of Credit of either an extension of the then existing Letter of Credit or the 	 issuance of an Alternate Credit Facility meeting the requirements set forth therefor in the 	 Agreement, including the Maintenance of Rating requirement (as defined therein); 	 	 	(d)	On the date of substitution of an Alternate Credit Facility for the then existing Letter 	 of Credit if the Trustee has not received evidence of a Maintenance of Rating with respect thereto 	 by the 25th day preceding such substitution date; 	 	 	(e)	On each optional redemption date pursuant to the Indenture for which the Company 	 has elected to purchase Bonds in lieu of optional redemption pursuant to the Indenture; and 	 	 	(f)	On the date on which the Guaranty is released as provided in the Indenture. 	 	 	The purchase price of Bonds subject to mandatory tender shall be 100% of the principal 	 amount thereof (except in the case of a mandatory tender described in paragraph (c), (d), (e), or (f) 	 above, during, but prior to the expiration date of, an Adjustable Rate Period, in which case the 	 purchase price shall include a premium equal to the then applicable optional redemption premium, 	 if any, on the Bonds, as set forth in the Indenture), plus accrued interest, if any, to the mandatory 	 tender date. Not later than 20 days prior to any mandatory tender date, the Trustee shall mail notice 	 to all Owners of Bonds subject to mandatory tender on such date stating that (1) due to the 	 occurrence of one of the events described above (which event shall be specified), such Owner"s 	 Bonds will be subject to mandatory tender to the Tender Agent at its Principal Office on the 	 mandatory tender date at the purchase price described above, and (2) interest with respect to Bonds 	 which are not tendered on the mandatory tender date will cease to accrue provided Available Moneys 	 for such purchase are on deposit with the Tender Agent on the mandatory tender date. Notice of 	 mandatory tenders described in paragraphs (a) and (e) above shall be given as part of the notice of 	 conversion or optional redemption referenced above. No failure on the part of the Tender Agent 	 to give such notice shall affect the requirement that Bonds be tendered on the mandatory tender 	 date. 	 	 	Any Bond subject to mandatory tender which is not tendered on or before the mandatory 	 tender date shall, if Available Moneys sufficient and available for the purchase of such Bonds have 	 been deposited with the Tender Agent on the mandatory tender date, be deemed to have been 	 tendered for purchase on the mandatory tender date, and from and after such date, interest will no 	 longer accrue on such Bonds. Owners of such Bonds shall have no rights or benefits under the 	 Indenture with respect to such Bonds other than to receive the purchase price for such Bonds upon 	 surrender of such Bonds to the Tender Agent. 	 	 VII.	 Redemption of Bonds 	 	 	The Bonds shall be subject to optional redemption only as follows: 	 	 	a.	Weekly Rate Mode, CP Rate Mode, or Daily Rate Mode. While the Bonds are in the 	 Weekly Rate Mode or the Daily Rate Mode, they are subject to optional redemption, in whole or 	 in part on any Business Day in Authorized Denominations, and while the Bonds are in the CP Rate 	 Mode, they are subject to optional redemption in whole or in part in Authorized Denominations on 	 any Interest Payment Date, at the direction of the Company, at a redemption price equal to 100% 	 of the principal amount of the Bond to be redeemed, plus accrued interest thereon to the redemption 	 date. 	 	b.	Adjustable Rate Mode. While the Bonds are in the Adjustable Rate Mode, they are 	 subject to optional redemption in whole or in part on any date, at the direction of the Company, only 	 on the dates and at the applicable redemption prices set forth in the Indenture. 	 	 	While the Bonds are in the Adjustable Rate Mode or the CP Rate Mode, the Bonds are 	 subject to extraordinary optional redemption in whole on any date at a redemption price equal to the 	 principal amount of Bonds plus accrued interest to the redemption date, without premium, upon the 	 occurrence of certain events specified in the Indenture. 	 	 	The Bonds in any Mode are subject to mandatory redemption in whole on the next date for 	 which timely notice of redemption can be given by the Trustee after the occurrence of a 	 Determination of Taxability at a redemption price equal to the aggregate principal amount of the 	 Bonds plus accrued interest thereon to the redemption date, without premium. 	 	 	At least 30 days prior to any redemption of Bonds, the Trustee shall cause notice of the call 	 for redemption to be sent by first class mail, postage prepaid, to the Owner of each Bond to be 	 redeemed at the address of such Owner shown on the registration books maintained by the Trustee. 	 Neither the failure to give any such notice nor any defect in any notice so mailed shall affect the 	 sufficiency or the validity of any proceedings for the redemption of the Bonds. 	 	 	If Available Moneys are deposited in the Bond Fund on the date Bonds are to be redeemed, 	 Bonds or portions thereof redeemed shall no longer be secured by this Indenture and shall not be 	 deemed to be outstanding under the provisions of this Indenture. Interest shall not continue to 	 accrue on the Bonds after the date fixed for redemption, so long as Available Moneys are on deposit 	 to pay all principal of, premium, if any, and interest accrued on the Bonds on such date. However, 	 if Available Moneys shall not be on deposit on the redemption date, such Bonds or portions thereof 	 shall continue to bear interest until paid at the same rate as they would have borne had they not been 	 called for redemption. 	 	 	Any partial redemption of Bonds shall be made only in integral multiples of $100,000. If fewer 	 than all of the Bonds shall be called for redemption, the portion of Bonds to be redeemed shall be 	 selected by the Trustee as provided in the Indenture. 	 	 VIII.	General Provisions 	 	 	Except as provided in the Indenture, the Ownership of this Bond may be transferred (in 	 Authorized Denominations) only upon presentation and surrender of this Bond at the corporate trust 	 office of the Trustee, together with an assignment duly executed by the Registered Owner hereof or 	 his duly authorized attorney-in-fact in such form as shall be satisfactory to the Trustee. 	 	 	Provisions may be made for the payment of amounts represented by the Bonds as provided in 	 the Indenture, in which event all liability of the Issuer to the Owners of the applicable Bonds for the 	 payment of such Bonds shall forthwith cease, terminate, and be completely discharged, and thereupon 	 it shall be the duty of the Trustee to hold such funds (but only for the period specified and as 	 provided in the Indenture), without liability for interest thereon, for the benefit of the Owners of 	 such Bonds, who shall thereafter be restricted exclusively to such funds for any claims of whatever 	 nature under the Indenture or on, or with respect to, said Bonds. 	 	 	It is hereby certified and covenanted that this Bond has been duly and validly authorized, 	 issued, and delivered; that all acts, conditions, and things required or proper to be performed, exist 	 and be done precedent to or in the authorization, issuance, and delivery of this Bond have been 	 performed, exist, and have been done in accordance with law. 	 	 	The Bonds are secured by the Indenture, whereunder the Trustee undertakes to enforce the 	 rights of the Owners of the Bonds and to perform other duties to the extent and under the conditions 	 stated in the Indenture. In case an Event of Default shall occur, the principal of and interest on the 	 Bonds then outstanding may, and, under certain circumstances, shall, be declared to be due and 	 payable immediately upon the conditions and in the manner provided in the Indenture. Under the 	 circumstances and conditions provided in the Indenture, the Trustee may, or shall, waive any Event 	 of Default under the Indenture and its consequences. 	 	 	The Issuer has reserved the right to amend the Indenture, with the consent of the Bank, as 	 provided therein. Under some (but not all) circumstances, amendments thereto must also be 	 approved by the Owners of either at least a majority or 100% in aggregate principal amount of the 	 outstanding Bonds. 	 	 	 	In Witness Whereof, the Issuer has caused this Bond to be executed in its name by the 	 manual or facsimile signature of its President or Vice President and attested with the manual or 	 facsimile signature of the Secretary of Assistant Secretary all as of the date first above written. 	 	 	 	 [Seal] 	 	 	 	 Attest:______________________________________ 	By:_______________________________________ 	 By Authorized Officer	 Authorized Officer 	 	 	 [OFFICE OF THE COMPTROLLER	 	 OF PUBLIC ACCOUNTS		REGISTER NO. _______________ 	 OF THE STATE OF TEXAS	 	 	 	 	I hereby certify that there is on file and of record in my office a certificate of the Attorney 	 General of the State of Texas to the effect that this Bond has been examined by him as required by 	 law, that he finds that it has been issued in conformity with the Constitution and laws of the State 	 of Texas, and that it is a valid and binding obligation of the Grapevine Industrial Development 	 Corporation; and that this Bond has this day been registered by me. 	 	 	 	Witness my hand and seal of office at Austin, Texas, ____________________________. 	 	 	 	 	_________________________________________________ 	 	Comptroller of Public Accounts of the 	 [SEAL]	State of Texas] 	 	 	 Assignment 	 	 	For value received, the undersigned hereby sells, assigns, and transfers unto ___________________ the within Bond, and does hereby irrevocably constitute and appoint ___________________, attorney to transfer such Bond on the books kept for registration and transfer of the within Bond, with full power of substitution in the premises. 	 	 	Dated: __________________ 	 	 Note: The signature to this Assignment must correspond with the name as it appears upon the face of the within Bond in every particular, without enlargement or alteration or any change whatsoever. 	 	 Signature guaranteed by: 	 	 _______________________________________Note: The signature to this assignment must correspond 	 with the name as it appears upon the face of the within Bond in every particular, without alteration or enlargement or any change whatever. Signature(s) must be guaranteed by an "eligible guarantor 	 institution" meeting the requirements of the Trustee, which requirements include membership or participation in Stamp or such other "signature guaranty program" as may be determined by the 	 Trustee in addition to or in substitution for Stamp, all in accordance with the Securities Exchange Act of 1934, as amended. 	 	 Registration Information 	 	 	Under the terms of the Indenture, the Trustee will register a Bond in the name of a transferee only if the Owner of such Bond (or his duly authorized representative) provides as much of the information requested below as is applicable to such Owner prior to submitting this Bond for transfer. 	 Name: _______________________________________ 	 	 Address: _____________________________________ 	 Social Security or Employer Identification Number: _______________________ 	 	 If a Trust, Name, and Address of Trustee(s) and Date of Trust: __________________ 	 	 	 Neither the State of Texas, the City of Grapevine, Texas, nor any political corporation, 	 subdivision, or agency thereof shall be obligated to pay the principal of, premium, if any, 	 or interest on this Bond and neither the faith and credit nor the taxing power of the 	 State of Texas, the City of Grapevine, Texas, nor any political corporation, subdivision, 	 or agency thereof nor any assets of the Grapevine Industrial Development Corporation, 	 other than those specifically pledged therefor, are pledged to the payment of the 	 principal of, premium, if any, or interest on the Bond. 	 	 	 No. R-1$8,000,000 	 	 	 Grapevine Industrial Development Corporation 	 Industrial Development Revenue Bonds, Series 1994 	 (Trencor Jetco, Inc. Project) 	 	 	DATED DATE:	MATURITY DATE:	CUSIP NUMBER: 	 	 	 April 1, 1994 	 April 1, 2019 	 388652 AL3 	 	 Registered Owner: CEDE & CO. 	 	 Principal Amount: EIGHT MILLION DOLLARS 	 	 	The Grapevine Industrial Development Corporation, a corporation acting on behalf of the City 	 of Grapevine (the "Unit"), State of Texas (the "State"), hereby promises to pay to the order of the 	 Registered Owner specified above, or registered assigns, the Principal Amount specified above on 	 the Maturity Date specified above (or earlier as hereinafter provided), and to pay interest on the 	 Principal Amount hereof from the date specified in the Indenture (hereinafter defined) at the rates 	 per annum and on the dates set forth herein (but only out of the revenues of the Issuer derived from 	 the Agreement, as hereinafter defined, or other moneys pledged therefor) and in accordance with 	 the provisions of the Development Corporation Act of 1979, Article 5190.6 Tex. Rev. Civ. Stat. Ann., 	 as amended (the "Act"). 	 	 	THIS BOND, TOGETHER WITH PREMIUM, IF ANY, AND THE INTEREST HEREON, IS 	 A SPECIAL AND LIMITED OBLIGATION OF THE ISSUER AND NEITHER THE ISSUER, THE 	 UNIT, NOR THE STATE OF TEXAS NOR ANY POLITICAL SUBDIVISION THEREOF, 	 INCLUDING THE ISSUER AND THE UNIT, SHALL BE OBLIGATED TO PAY THIS BOND, THE 	 PREMIUM, IF ANY, OR THE INTEREST HEREON OR OTHER COSTS INCIDENT THERETO 	 EXCEPT FROM FUNDS PLEDGED UNDER THE INDENTURE. NEITHER THE FAITH AND 	 CREDIT NOR THE TAXING POWER OF THE STATE, THE UNIT, OR ANY POLITICAL 	 CORPORATION, SUBDIVISION, AGENCY, OR INSTRUMENTALITY THEREOF IS PLEDGED 	 TO THE PAYMENT OF THE PRINCIPAL, PREMIUM, IF ANY, OR INTEREST ON THIS BOND. 	 	 	 	The principal of, premium, if any, and interest on this Bond are payable in lawful money of the 	 United States of America. The principal of and premium, if any, payable upon maturity or earlier 	 redemption of this Bond are payable when due upon the presentation and surrender hereof at the 	 corporate trust office of Bank One, Texas, NA, in Fort Worth, Texas, as trustee (the "Trustee"), or 	 any successor trustee. Each payment of interest on this Bond shall be payable to the Registered 	 Owner hereof as shown on the registration books kept by the Trustee at the close of business on the 	 Business Day (but, during an Adjustable Rate Period, the fifteenth day of the calendar month) next 	 preceding the date on which such interest becomes due and payable (herein, a "Record Date"). 	 Interest on this Bond shall be payable to the Registered Owner hereof by check mailed by first class 	 mail on the respective Interest Payment Dates (as hereinafter defined) to the address of such 	 Registered Owner as shown on the books kept by the Trustee at the close of business on the relevant 	 Record Date or such other address as is furnished to the Trustee (in form satisfactory to the Trustee) 	 by such Owner prior to such Record Date. Registered Owners of $1,000,000 or more in aggregate 	 principal amount of Bonds shall be entitled to receive interest payments by wire transfer by providing 	 written wire instructions to the Trustee before the Record Date. 	 	 	This Bond shall not be valid or become obligatory for any purpose or be entitled to any security 	 or benefit under the Indenture until the Certificate of Authentication hereon shall have been signed 	 by the Trustee or the Tender Agent. 	 	 	This Bond is authorized and issued under and pursuant to authority conferred by the Act, 	 certain proceedings of the Board of Directors of the Issuer and the Indenture of Trust dated as of 	 April 1, 1994 (the "Indenture") between the Issuer and the Trustee. Certain terms used and not 	 defined in this Bond are defined in the Indenture. This Bond is one of the Issuer"s duly authorized 	 Industrial Development Revenue Bonds, Series 1994 (Trencor Jetco, Inc. Project) (the "Bonds"), 	 which Bonds have been issued in the aggregate principal amount of $8,000,000 to provide funds to 	 make a loan to Trencor Jetco, Inc., a Texas corporation (the "Company") pursuant to a Loan 	 Agreement dated as of April 1, 1994 (the "Agreement") between the Issuer and the Company. The 	 proceeds of the Bonds will be used to finance a portion of the costs of acquisition, construction and 	 equipping of certain facilities (the "Project") located in the Unit. As security for the payment of the 	 Bonds, the Company has caused to be delivered to the Trustee a letter of credit (the "Initial Letter 	 of Credit") of The First National Bank of Chicago (the "Bank"), against which the Trustee shall be 	 entitled to draw, in accordance with the terms thereof, to pay when and as due, the principal or 	 purchase price of, and interest on, the Bonds during the term of the Initial Letter of Credit. Under 	 certain conditions, the Company may cause to be delivered an Alternate Credit Facility (an 	 "Alternate Credit Facility") in substitution for the Letter of Credit then in effect without the consent 	 of the Owners of the Bonds. The Initial Letter of Credit, together with any Alternate Credit Facility, 	 is hereinafter referred to as the "Letter of Credit". The Bonds are guaranteed by Astec Industries, 	 Inc., a Tennessee corporation (the "Guarantor"), the owner of 100% of the outstanding stock of the 	 Company, pursuant to a Guaranty Agreement dated April 1, 1994, between the Guarantor and the 	 Trustee. The Bonds are not secured by any lien on or security interest in the Project. 	 	 	The Bonds are issued under and entitled to the benefits of the Indenture. Pursuant to the 	 Indenture, the Issuer has pledged and assigned to the Trustee the Trust Estate as security for its 	 obligation to pay the principal or purchase price of, premium, if any, and interest on the Bonds. 	 Reference is made to the Indenture for a description of the Trust Estate and for the provisions 	 thereof with respect to the nature and extent of the security granted by the Issuer to the Trustee 	 thereunder, the rights, duties, and obligations of the Issuer and the Trustee, the rights of the 	 registered Owners of the Bonds, and the terms on which the Bonds are issued and secured, to all of 	 which provisions, and to all other provisions of the Indenture, the Registered Owner hereof by the 	 acceptance of this Bond assents. 	 	 	 I.	Weekly Rate Provisions 	 	 	Optional Tender. During a Weekly Rate Period, this Bond or any portion thereof in 	 Authorized Denominations (except during any period this Bond is a Pledged Bond or Company 	 Bond) shall be purchased on the demand of the registered Owner thereof on any Business Day at 	 a price equal to 100% of the principal amount thereof, plus accrued and unpaid interest thereon to 	 the date of purchase, upon delivery to the tender agent duly appointed in accordance with the 	 provisions of the Indenture (together with any successor tender agent, the "Tender Agent") at its 	 Principal Office, on any Business Day, of (a) a written irrevocable notice setting forth the information 	 required by the Indenture, including the date on which such Bond, or the portion thereof being 	 tendered for purchase, shall be so purchased, which date shall be a Business Day not prior to the 	 seventh day next succeeding the date of the delivery of such notice to the Tender Agent, together 	 with (b) this Bond, as provided in the Indenture; provided, that if the registered Owner of the 	 tendered Bond is an open-ended diversified management investment company (registered under the 	 Investment Company Act of 1940, as amended), the delivery required under this clause (b) need not 	 be made until the date such Bond is to be purchased from such registered Owner as provided in the 	 Indenture. Notwithstanding the foregoing, if the Bonds, are held in a Book-Entry System, separate 	 procedures for the optional tender of Bonds are set forth in the Indenture. 	 	 	Interest. During any period this Bond is in the Weekly Rate Mode, interest on this Bond shall 	 be paid on the first Business Day of each month next succeeding the Closing Date (if applicable), 	 each Weekly Rate Conversion Date, and on the Maturity Date specified above or such other date 	 as the outstanding principal amount of the Bonds is paid in full if the Bonds are in the Weekly Rate 	 Mode at such time (each, a "Weekly Rate Interest Payment Date"), and shall be computed on the 	 basis of a 365- or 366-day year, for the actual number of days elapsed. Interest on this Bond for each 	 Weekly Interest Period shall be calculated as provided below and in the Indenture. During each 	 Weekly Rate Period, "Weekly Interest Period" shall mean the period from and including the first day 	 of the Weekly Rate Period through and including the following Tuesday, and after the first Weekly 	 Interest Period of each Weekly Rate Period, from and including Wednesday of each week through 	 and including the following Tuesday, whether or not such days are Business Days, provided, however, 	 the initial Weekly Interest Period shall commence on the Closing Date and end on the following 	 Tuesday. 	 	 	On Tuesday (unless Tuesday is not a Business Day, then on the next preceding Monday; unless 	 Monday and Tuesday are not Business Days, then on the next subsequent Wednesday, whether or 	 not a Business Day) of each calendar week during a Weekly Rate Period, with respect to each 	 Weekly Interest Period, the Remarketing Agent shall determine the Weekly Rate for the ensuing or 	 current (in the case of determinations made on Wednesday) Weekly Interest Period. The 	 determination of the Weekly Rate by the Remarketing Agent shall be conclusive and binding. 	 	 	The Weekly Rate for each Weekly Interest Period determined by the Remarketing Agent shall 	 be the lowest rate of interest which will, in the sole judgment of the Remarketing Agent, having due 	 regard for prevailing financial market conditions, permit the Bonds to be remarketed at a price of par, 	 plus accrued interest, on the first day of the applicable Weekly Interest Period; provided that in no 	 case shall the Weekly Rate be more than the Maximum Rate. In the event no Weekly Rate is 	 determined by the Remarketing Agent for a Weekly Interest Period, the Weekly Rate for such 	 Weekly Interest Period shall be the rate from time to time established pursuant to the Indenture. 	 	 	 II.	Daily Rate Provisions 	 	 	Optional Tender. During a Daily Rate Period, this Bond or any portion thereof in Authorized 	 Denominations (except during any period this Bond is a Pledged Bond or Company Bond) shall be 	 purchased on the demand of the registered Owner thereof on any Business Day at a price equal to 	 100% of the principal amount thereof, plus accrued and unpaid interest thereon to the date of 	 purchase, upon delivery (by telecopy of otherwise) to the Tender Agent at its principal office, (a) by 	 10:30 a.m., New York time, on such Business Day, of a written irrevocable notice, which will be 	 effective upon receipt, setting forth the information required by the Indenture and (b) by 11:00 a.m., 	 New York time, on such Business Day, this Bond, as provided in the Indenture. Notwithstanding the 	 foregoing, if the Bonds are held in a Book-Entry System, separate procedures for the optional tender 	 of Bonds are set forth in the Indenture. 	 	 	Interest. During any period this Bond is in the Daily Rate Mode, interest on this Bond shall 	 be paid on the first Business Day of each month next succeeding the Closing Date (if applicable), 	 each Daily Rate Conversion Date, and on the Maturity Date specified above or such other date as 	 the outstanding principal amount of the Bonds is paid in full if the Bonds are in the Daily Rate Mode 	 at such time (each, a "Daily Rate Interest Payment Date"), and shall be computed on the basis of 	 a 365- or 366-day year, for the actual number of days elapsed. Interest on the Bonds for each Daily 	 Interest Period shall be calculated as provided below and in the Indenture. During each Daily Rate 	 Period, "Daily Interest Period" shall mean the period from and including the first day of the Daily 	 Rate Period to but excluding the immediately succeeding Business Day. 	 	 	On the first day of each Daily Interest Period, the Remarketing Agent shall determine the 	 Daily Rate for such Daily Interest Period. The determination of the Daily Rate by the Remarketing 	 Agent shall be conclusive and binding. 	 	 	The Daily Rate for each Daily Interest Period determined by the Remarketing Agent shall be 	 the lowest rate of interest which will, in the sole judgment of the Remarketing Agent, having due 	 regard for prevailing financial market conditions, permit the Bonds to be remarketed at a price of par, 	 plus accrued interest, on the first day of the applicable Daily Interest Period; provided that in no case 	 shall the Daily Rate be more than the Maximum Rate. In the event no Daily Rate is determined by 	 the Remarketing Agent for a Daily Interest Period, then the Bonds shall thereupon bear interest at 	 the last Daily Rate previously determined pursuant to the Indenture. 	 	 III. 	CP Rate Provisions 	 	 	From and after each CP Rate Conversion Date or a CP Rate Reset Date, as appropriate, to 	 the earlier of their redemption, the following Conversion Date, or the following CP Rate Reset Date, 	 the interest rate of this Bond shall be a CP Rate, determined as provided below and in the Indenture. 	 When the Bonds are in the CP Rate Mode, in the case of each CP Rate Period, on the first day 	 thereof, the Remarketing Agent shall determine (i) the duration of the CP Rate Period and (ii) the 	 CP Rate which shall apply during such CP Rate Period. The duration of the CP Rate Period so 	 determined shall be that which, in the sole judgment of the Remarketing Agent will provide the 	 lowest overall interest cost with respect to the Bonds, with due regard to prevailing financial market 	 conditions, foreseeable changes in such conditions, the anticipated duration of the period the Bonds 	 may remain in the CP Rate Mode, and such other factors which the Remarketing Agent, in its sole 	 judgment, shall deem relevant and economically advantageous to consider. Upon determination of 	 the duration of the CP Rate Period, the Remarketing Agent shall determine the CP Rate which shall 	 be in effect during such CP Rate Period, which shall be the lowest rate of interest which, in the sole 	 judgment of the Remarketing Agent, having due regard to prevailing financial market conditions, will 	 permit the Bonds to be sold at par, plus accrued interest, on the first day of such CP Rate Period. 	 Notwithstanding the foregoing, the CP Rate so determined shall not be more than the Maximum 	 Rate. Unless and until the Company elects to effect a conversion of the Bonds from the CP Rate 	 Mode to another Mode, the Remarketing Agent shall continually redetermine the duration of, and 	 the CP Rate to be effective during each new CP Rate Period, which will commence, without further 	 action on the part of the Company on each CP Rate Reset Date. If on any CP Rate Reset Date the 	 Remarketing Agent shall fail to determine either the duration of, or the CP Rate to be effective 	 during the CP Rate Period which commences on such date, then, without further action on the part 	 of the Company, the Bonds shall thereupon bear interest at the Weekly Rate determined pursuant 	 to the Indenture. Each determination by the Remarketing Agent shall be conclusive and binding. 	 While the Bonds are in the CP Rate Mode, interest on this Bond will be payable on the first Business 	 Day which follows each CP Rate Period, and shall be computed on the basis of a 365- or 366-day 	 year, and the actual number of days elapsed. 	 	 IV.	 Adjustable Rate Provisions 	 	 	From and after each Adjustable Rate Conversion Date or Adjustable Rate Reset Date, the 	 interest rate on this Bond shall be an Adjustable Rate, determined as provided below and in the 	 Indenture. When the Bonds are in the Adjustable Rate Mode, the Bonds will remain in such Mode 	 for as long as the Company continues to deliver timely conversion notices specifying the duration of 	 the next Adjustable Rate Period. The Remarketing Agent, on or prior to the commencement of each 	 Adjustable Rate Period, shall determine the Adjustable Rate to be borne by the Bonds during such 	 Adjustable Rate Period, which will be the lowest rate which, in its sole judgment having due regard 	 for prevailing financial market conditions, will permit the Bonds to be sold at par on the first day of 	 such Adjustable Rate Period. Notwithstanding the foregoing, the Adjustable Rate shall not be more 	 than the Maximum Rate. In the event no Adjustable Rate is determined by the Remarketing Agent 	 for an Adjustable Rate Period, then the Bonds shall bear interest as provided in the Indenture. 	 	 	During each Adjustable Rate Period, interest on this Bond shall be paid on each Adjustable 	 Rate Interest Payment Date and shall be computed on the basis of a 360-day year consisting of twelve 	 30-day months. 	 	 V.	Conversion Provisions 	 	 	The interest rate Mode of this Bond shall be converted from one Mode to another Mode, or 	 from an Adjustable Rate Period of one duration to an Adjustable Rate Period of the same or a 	 different duration within the Adjustable Rate Mode, if the Company shall give notice as provided in 	 the Indenture of its election to effect such conversion, specifying in such notice the date on which 	 the Conversion Date will occur (which date shall be at least 25 days after such notice is given) and, 	 if the conversion is to an Adjustable Rate Period, specifying the Interest Payment Date which shall 	 be the day following the last day of such Adjustable Rate Period (which Adjustable Rate Period shall 	 be of a duration of at least six months). The Bonds shall be subject to mandatory tender and 	 purchase on the Conversion Date. In the event any condition precedent to the conversion of the 	 interest rate Mode of this Bond from one Mode to another Mode, or from an Adjustable Rate 	 Period of one duration to an Adjustable Rate Period of the same or a different duration, is not 	 satisfied, this Bond shall nonetheless be subject to mandatory tender on the Conversion Date and the 	 Bonds shall commence bearing interest on the Conversion Date as provided in the Indenture. 	 	 	 VI.	 Mandatory Tender 	 	 	All Bonds are subject to mandatory tender in whole by the Owners to the Tender Agent at its 	 Principal Office on each date described below: 	 	 	(a)	On each Conversion Date; 	 	 	(b)	On each CP Rate Reset Date; 	 	 	(c)	On the second Business Day prior to the expiration or termination of the Letter of 	 Credit (except as provided in the Indenture), if the Trustee has not received evidence satisfactory to 	 it as required by the Indenture by the 25th day preceding the scheduled expiration or termination 	 date of the Letter of Credit of either an extension of the then existing Letter of Credit or the 	 issuance of an Alternate Credit Facility meeting the requirements set forth therefor in the 	 Agreement, including the Maintenance of Rating requirement (as defined therein); 	 	 	(d)	On the date of substitution of an Alternate Credit Facility for the then existing Letter 	 of Credit if the Trustee has not received evidence of a Maintenance of Rating with respect thereto 	 by the 25th day preceding such substitution date; 	 	 	(e)	On each optional redemption date pursuant to the Indenture for which the Company 	 has elected to purchase Bonds in lieu of optional redemption pursuant to the Indenture; and 	 	 	(f)	On the date on which the Guaranty is released as provided in the Indenture. 	 	 	The purchase price of Bonds subject to mandatory tender shall be 100% of the principal 	 amount thereof (except in the case of a mandatory tender described in paragraph (c), (d), (e), or (f) 	 above, during, but prior to the expiration date of, an Adjustable Rate Period, in which case the 	 purchase price shall include a premium equal to the then applicable optional redemption premium, 	 if any, on the Bonds, as set forth in the Indenture), plus accrued interest, if any, to the mandatory 	 tender date. Not later than 20 days prior to any mandatory tender date, the Trustee shall mail notice 	 to all Owners of Bonds subject to mandatory tender on such date stating that (1) due to the 	 occurrence of one of the events described above (which event shall be specified), such Owner"s 	 Bonds will be subject to mandatory tender to the Tender Agent at its Principal Office on the 	 mandatory tender date at the purchase price described above, and (2) interest with respect to Bonds 	 which are not tendered on the mandatory tender date will cease to accrue provided Available Moneys 	 for such purchase are on deposit with the Tender Agent on the mandatory tender date. Notice of 	 mandatory tenders described in paragraphs (a) and (e) above shall be given as part of the notice of 	 conversion or optional redemption referenced above. No failure on the part of the Tender Agent 	 to give such notice shall affect the requirement that Bonds be tendered on the mandatory tender 	 date. 	 	 	Any Bond subject to mandatory tender which is not tendered on or before the mandatory 	 tender date shall, if Available Moneys sufficient and available for the purchase of such Bonds have 	 been deposited with the Tender Agent on the mandatory tender date, be deemed to have been 	 tendered for purchase on the mandatory tender date, and from and after such date, interest will no 	 longer accrue on such Bonds. Owners of such Bonds shall have no rights or benefits under the 	 Indenture with respect to such Bonds other than to receive the purchase price for such Bonds upon 	 surrender of such Bonds to the Tender Agent. 	 	 VII.	 Redemption of Bonds 	 	 	The Bonds shall be subject to optional redemption only as follows: 	 	 	a.	Weekly Rate Mode, CP Rate Mode, or Daily Rate Mode. While the Bonds are in the 	 Weekly Rate Mode or the Daily Rate Mode, they are subject to optional redemption, in whole or 	 in part on any Business Day in Authorized Denominations, and while the Bonds are in the CP Rate 	 Mode, they are subject to optional redemption in whole or in part in Authorized Denominations on 	 any Interest Payment Date, at the direction of the Company, at a redemption price equal to 100% 	 of the principal amount of the Bond to be redeemed, plus accrued interest thereon to the redemption 	 date. 	 	 	b.	Adjustable Rate Mode. While the Bonds are in the Adjustable Rate Mode, they are 	 subject to optional redemption in whole or in part on any date, at the direction of the Company, only 	 on the dates and at the applicable redemption prices set forth in the Indenture. 	 	 	While the Bonds are in the Adjustable Rate Mode or the CP Rate Mode, the Bonds are 	 subject to extraordinary optional redemption in whole on any date at a redemption price equal to the 	 principal amount of Bonds plus accrued interest to the redemption date, without premium, upon the 	 occurrence of certain events specified in the Indenture. 	 	 	The Bonds in any Mode are subject to mandatory redemption in whole on the next date for 	 which timely notice of redemption can be given by the Trustee after the occurrence of a 	 Determination of Taxability at a redemption price equal to the aggregate principal amount of the 	 Bonds plus accrued interest thereon to the redemption date, without premium. 	 	 	At least 30 days prior to any redemption of Bonds, the Trustee shall cause notice of the call 	 for redemption to be sent by first class mail, postage prepaid, to the Owner of each Bond to be 	 redeemed at the address of such Owner shown on the registration books maintained by the Trustee. 	 Neither the failure to give any such notice nor any defect in any notice so mailed shall affect the 	 sufficiency or the validity of any proceedings for the redemption of the Bonds. 	 	 	If Available Moneys are deposited in the Bond Fund on the date Bonds are to be redeemed, 	 Bonds or portions thereof redeemed shall no longer be secured by this Indenture and shall not be 	 deemed to be outstanding under the provisions of this Indenture. Interest shall not continue to 	 accrue on the Bonds after the date fixed for redemption, so long as Available Moneys are on deposit 	 to pay all principal of, premium, if any, and interest accrued on the Bonds on such date. However, 	 if Available Moneys shall not be on deposit on the redemption date, such Bonds or portions thereof 	 shall continue to bear interest until paid at the same rate as they would have borne had they not been 	 called for redemption. 	 	 	Any partial redemption of Bonds shall be made only in integral multiples of $100,000. If fewer 	 than all of the Bonds shall be called for redemption, the portion of Bonds to be redeemed shall be 	 selected by the Trustee as provided in the Indenture. 	 	 VIII.	General Provisions 	 	 	Except as provided in the Indenture, the Ownership of this Bond may be transferred (in 	 Authorized Denominations) only upon presentation and surrender of this Bond at the corporate trust 	 office of the Trustee, together with an assignment duly executed by the Registered Owner hereof or 	 his duly authorized attorney-in-fact in such form as shall be satisfactory to the Trustee. 	 	 	Provisions may be made for the payment of amounts represented by the Bonds as provided in 	 the Indenture, in which event all liability of the Issuer to the Owners of the applicable Bonds for the 	 payment of such Bonds shall forthwith cease, terminate, and be completely discharged, and thereupon 	 it shall be the duty of the Trustee to hold such funds (but only for the period specified and as 	 provided in the Indenture), without liability for interest thereon, for the benefit of the Owners of 	 such Bonds, who shall thereafter be restricted exclusively to such funds for any claims of whatever 	 nature under the Indenture or on, or with respect to, said Bonds. 	 	 	It is hereby certified and covenanted that this Bond has been duly and validly authorized, 	 issued, and delivered; that all acts, conditions, and things required or proper to be performed, exist 	 and be done precedent to or in the authorization, issuance, and delivery of this Bond have been 	 performed, exist, and have been done in accordance with law. 	 	 	The Bonds are secured by the Indenture, whereunder the Trustee undertakes to enforce the 	 rights of the Owners of the Bonds and to perform other duties to the extent and under the conditions 	 stated in the Indenture. In case an Event of Default shall occur, the principal of and interest on the 	 Bonds then outstanding may, and, under certain circumstances, shall, be declared to be due and 	 payable immediately upon the conditions and in the manner provided in the Indenture. Under the 	 circumstances and conditions provided in the Indenture, the Trustee may, or shall, waive any Event 	 of Default under the Indenture and its consequences. 	 	 	The Issuer has reserved the right to amend the Indenture, with the consent of the Bank, as 	 provided therein. Under some (but not all) circumstances, amendments thereto must also be 	 approved by the Owners of either at least a majority or 100% in aggregate principal amount of the 	 outstanding Bonds. 	 	 	 	In Witness Whereof, the Issuer has caused this Bond to be executed in its name by the 	 manual or facsimile signature of its President or Vice President and attested with the manual or 	 facsimile signature of the Secretary of Assistant Secretary all as of the date first above written. 	 	 [Seal] 	 	 Attest:______________________________________ 	By:_______________________________________ 	 By Authorized Officer	 Authorized Officer 	 	 	 	 	This Bond is hereby authenticated as required by the within-referenced Indenture of Trust. 	 	 	 	 	 	 	Authorized Officer of Trustee or Tender Agent 	 	 	Date of Authentication: ____________________ 	 	 	 	 Assignment 	 	 	For value received, the undersigned hereby sells, assigns, and transfers unto 	 ___________________ the within Bond, and does hereby irrevocably constitute and appoint 	 ___________________, attorney to transfer such Bond on the books kept for registration and transfer 	 of the within Bond, with full power of substitution in the premises. 	 	 	Dated: __________________ 	 	 Note: The signature to this Assignment must correspond with the name as it appears upon the face 	 of the within Bond in every particular, without enlargement or alteration or any change whatsoever. 	 	 Signature guaranteed by: 	 	 _______________________________________Note: The signature to this assignment must correspond 	 with the name as it appears upon the face of the within Bond in every particular, without alteration 	 or enlargement or any change whatever. Signature(s) must be guaranteed by an "eligible guarantor 	 institution" meeting the requirements of the Trustee, which requirements include membership or 	 participation in Stamp or such other "signature guaranty program" as may be determined by the 	 Trustee in addition to or in substitution for Stamp, all in accordance with the Securities Exchange 	 Act of 1934, as amended. 	 	 Registration Information 	 	 	Under the terms of the Indenture, the Trustee will register a Bond in the name of a transferee 	 only if the Owner of such Bond (or his duly authorized representative) provides as much of the 	 information requested below as is applicable to such Owner prior to submitting this Bond for transfer. 	 	 Name: _______________________________________ 	 	 Address: _____________________________________ 	 Social Security or Employer Identification Number: _______________________ 	 	 If a Trust, Name, and Address of Trustee(s) and Date of Trust: __________________ 	 	 	 TABLE OF CONTENTS 	 	 Page 	 	 	Recitals1 	 	 	 Article I 	 Definitions and Interpretation 	 	 Section 1.01.	Definitions 3 	 Section 1.02 Article and Section Headings 11 	 Section 1.03. Interpretation 11 	 	 Article II 	 Authorization and Issuance of the Bonds 	 	 Section 2.01. Authorization of Bonds; No Additional Bonds 11 	 Section 2.02. Issuance of Bonds; Terms of Bonds 11 	 Section 2.03. Optional Tender 16 	 Section 2.04. Mandatory Tenders 18 	 Section 2.05. Form of Bonds 19 	 Section 2.06. Execution and Authentication of Bonds; Limited Obligations 19 	 Section 2.07. Registration and Exchange of Bonds; Persons Treated as Owners 20 	 Section 2.08. Mutilated, Lost, Stolen, or Destroyed Bonds 21 	 Section 2.09. Cancellation of Bonds 21 	 Section 2.10. Temporary Bonds 21 	 Section 2.11. Conditions Precedent to Authentication and Delivery of Bonds 21 	 Section 2.12. Book-Entry System 22 	 	 Article III 	 Redemption of Bonds; Purchase and Remarketing of Bonds 	 	 Section 3.01. Optional Redemption 23 	 Section 3.02. Extraordinary Optional Redemption 25 	 Section 3.03. Mandatory Redemption 25 	 Section 3.04. Notice of Redemption 25 	 Section 3.05. Effect of Availability of Redemption Prices 26 	 Section 3.06. Partial Redemption 26 	 Section 3.07. Purchase of Tendered Bonds 27 	 Section 3.08. Remarketing of Tendered Bonds; Payment of Purchase Price 27 	 Section 3.09. Funds for Purchase Price of Bonds 29 	 Section 3.10. Delivery of Purchased Bonds 29 	 Section 3.11. Pledged Bonds 30 	 	 Article IV 	 General Provisions 	 	 Section 4.01. Payment of Principal, Premium, if any, and Interest 31 	 Section 4.02. Instruments of Further Assurance 31 	 Section 4.03. Tax-Exempt Status of Bonds 31 	 Section 4.04. Books, Records and Accounts 31 	 Section 4.05. Notice to Rating Agencies 32 	 	 Article V 	 Revenues and Funds; Letter of Credit 	 	 Section 5.01. Application of Original Proceeds of Bonds 32 	 Section 5.02. Bond Fund 32 	 Section 5.03. Letter of Credit; Alternate Credit Facility 33 	 Section 5.04. Letter of Credit Draws and Bond Fund Moneys to Pay Principal, Premium, or Interest 35 	 Section 5.05. Investment of Moneys 35 	 Section 5.06. Moneys to Be Held in Trust; Nonpresentment of Bonds 36 	 Section 5.07. Repayment from Indenture Funds 36 	 Section 5.08. Tax Covenants 37 	 Section 5.09. Custody of Funds and Accounts 37 	 Section 5.10. Rebate Fund, Rebate 37 	 Section 5.11. Payments in the Project Account; Disbursements. 38 	 Section 5.12. Completion of Project 39 	 Section 5.13. Transfer of Construction Fund 39 	 Section 5.14. Custody of Funds and Accounts 39 	 	 Article VI 	 Defaults and Remedies 	 	 Section 6.01. Events of Default 40 	 Section 6.02. Acceleration 41 	 Section 6.03. Other Remedies 41 	 Section 6.04. Waiver of Past Defaults 41 	 Section 6.05. Control by Majority 42 	 Section 6.06. Limitation on Suits 42 	 Section 6.07. Rights of Owners to Receive Payment 42 	 Section 6.08. Collection Suit by Trustee 42 	 Section 6.09. Trustee May File Proofs of Claim 42 	 Section 6.10. Priorities 42 	 Section 6.11. Bank Deemed Owner of Certain Bonds 43 	 Section 6.12. Bank Rights 43 	 	 Article VII 	 Trustee, Remarketing Agent, and Tender Agent 	 	 Section 7.01. Duties of Trustee 43 	 Section 7.02. Rights of Trustee 44 	 Section 7.03. Individual Rights of Trustee 44 	 Section 7.04. Trustee"s Disclaimer 44 	 Section 7.05. Notice of Defaults 45 	 Section 7.06. Compensation and Indemnity of Trustee 45 	 Section 7.07. Eligibility of Trustee 45 	 Section 7.08. Replacement of Trustee 45 	 Section 7.09. Duties of Remarketing Agent 46 	 Section 7.10. Eligibility of Remarketing Agent; Replacement 46 	 Section 7.11. Tender Agent 47 	 Section 7.12. Successor Trustee, Remarketing Agent, or Tender Agent by Merger 47 	 	 Article VIII 	 Supplemental Indentures 	 	 Section 8.01. Without Consent of Owners 48 	 Section 8.02. With Consent of Owners 48 	 Section 8.03. Effect of Consents 48 	 Section 8.04. Notation on or Exchange of Bonds 49 	 Section 8.05. Execution and Delivery by Trustee of Amendments and Supplements 49 	 Section 8.06. Company and Bank Consent Required 49 	 Section 8.07. Notice to Owners 49 	 	 Article IX 	 Amendment of Agreement, Guaranty, or Letter of Credit 	 	 Section 9.01. Without Consent of Owners 49 	 Section 9.02. With Consent of Owners 49 	 Section 9.03. Bank Consent Required 50 	 Section 9.04. Modifications of Letter of Credit 50 	 Section 9.05. Release of Guaranty 50 	 	 Article X 	 Discharge of Indenture 	 	 Section 10.01. Bonds Deemed Paid; Discharge of Indenture 50 	 Section 10.02. Application of Trust Money 51 	 Section 10.03. Repayment to Bank and Company 51 	 	 Article XI 	 Miscellaneous 	 	 Section 11.01. Owners" Consent 51 	 Section 11.02. Limitation of Rights 52 	 Section 11.03. No Personal Liability of Issuer 52 	 Section 11.04. Severability 52 	 Section 11.05. Notices 52 	 Section 11.06. Payments or Performance Due on Other Than Business Day 54 	 Section 11.07. Execution of Counterparts 54 	 Section 11.08. Applicable Law 54 	 Section 11.09. Notice to Texas Department of Commerce of Certain Matters 54 	 Section 11.10. Exceptions to Requirements of Bank Consent 54 	 	 	Execution55 	 	 	Exhibit A - Bond Form