Document:

Form of Warrant Agreement

 Exhibit 4.4 
 WARRANT AGREEMENT 
 This Warrant Agreement made as of
                , 2006 between Builder Acquisition Corp., a Delaware corporation, with offices at 4902 Alameda Boulevard, NE, Albuquerque, New Mexico 87113
(“Company”), and Continental Stock Transfer & Trust Company, a New York corporation, with offices at 17 Battery Place, New York, New York 10004 (“Warrant Agent”). 
 WHEREAS, the Company is engaged in a public offering (“Public Offering”) of Units (“Units”) and, in connection therewith, has
determined to issue and deliver up to 14,375,000 Warrants (“Public Warrants”) to the public investors, and (ii) 625,000 Warrants to JMP Securities LLC (“JMP Securities”) or its designees (“Representative’s
Warrants”), each of such Public Warrants evidencing the right of the holder thereof to purchase one share of common stock, par value $.0001 per share, of the Company’s Common Stock (“Common Stock”) for $6.00, subject to
adjustment as described herein; and 
 WHEREAS, the Company has filed with the Securities and Exchange Commission a Registration Statement,
No. 333-134909 on Form S-1 (“Registration Statement”) for the registration, under the Securities Act of 1933, as amended (“Act”) of, among other securities, the Public Warrants and the Representative’s Warrants and the
Common Stock issuable upon exercise of the Public Warrants and the Representative’s Warrants; and 
 WHEREAS, immediately prior to the
Public Offering, the Company intends to issue and sell 1,000,000 warrants in a private placement, which warrants (the “Private Warrants” and, with the Public Warrants and the Representative’s Warrants, the “Warrant(s)”) will
be identical to the Public Warrants, subject to certain exceptions, as set forth in the Registration Statement; 
 WHEREAS, the Company
desires the Warrant Agent to act on behalf of the Company, and the Warrant Agent is willing to so act, in connection with the issuance, registration, transfer, exchange, redemption and exercise of the Warrants; and 
 WHEREAS, the Company desires to provide for the form and provisions of the Warrants, the terms upon which they shall be issued and exercised, and the
respective rights, limitation of rights, and immunities of the Company, the Warrant Agent, and the holders of the Warrants; and 
 WHEREAS,
all acts and things have been done and performed which are necessary to make the Warrants, when executed on behalf of the Company and countersigned by or on behalf of the Warrant Agent, as provided herein, the valid, binding and legal obligations of
the Company, and to authorize the execution and delivery of this Agreement. 
 NOW, THEREFORE, in consideration of the mutual agreements
herein contained, the parties hereto agree as follows: 
 1. Appointment of Warrant Agent. The Company hereby appoints the Warrant
Agent to act as agent for the Company for the Warrants, and the Warrant Agent hereby accepts such appointment and agrees to perform the same in accordance with the terms and conditions set forth in this Agreement. 
 2. Warrants. 
 2.1 Form of
Warrant. Each Warrant shall be issued in registered form only, shall be in substantially the form of Exhibit A hereto, the provisions of which are incorporated herein and shall be signed by, or bear the facsimile signature of, the
Chairman of the Board or President and Treasurer, Secretary or Assistant Secretary of the Company and shall bear a facsimile of the Company’s seal. In the 
  

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 event the person whose facsimile signature has been placed upon any Warrant shall have ceased to serve in the capacity in
which such person signed the Warrant before such Warrant is issued, it may be issued with the same effect as if he or she had not ceased to be such at the date of issuance. 
 2.2 Effect of Countersignature. Unless and until countersigned by the Warrant Agent pursuant to this Agreement, a Warrant shall be invalid and of
no effect and may not be exercised by the holder thereof. 
 2.3 Registration. 
 2.3.1 Warrant Register. The Warrant Agent shall maintain books (“Warrant Register”), for the registration of original issuance and the
registration of transfer of the Warrants. Upon the initial issuance of the Warrants, the Warrant Agent shall issue and register the Warrants in the names of the respective holders thereof in such denominations and otherwise in accordance with
instructions delivered to the Warrant Agent by the Company. 
 2.3.2 Registered Holder. Prior to due presentment for registration of
transfer of any Warrant, the Company and the Warrant Agent may deem and treat the person in whose name such Warrant shall be registered upon the Warrant Register (“registered holder”), as the absolute owner of such Warrant and of each
Warrant represented thereby (notwithstanding any notation of ownership or other writing on the Warrant Certificate made by anyone other than the Company or the Warrant Agent), for the purpose of any exercise thereof, and for all other purposes, and
neither the Company nor the Warrant Agent shall be affected by any notice to the contrary. 
 2.4 Detachability of Warrants. The
securities comprising the Units will not be separately transferable until 90 days after the date hereof unless JMP Securities informs the Company of its decision to allow earlier separate trading, but in no event will JMP Securities allow separate
trading of the securities comprising the Units until the Company files a Current Report on Form 8-K which includes an audited balance sheet reflecting the receipt by the Company of the gross proceeds of the Public Offering including the proceeds
received by the Company from the exercise of the underwriters’ over-allotment option, if the over-allotment option is exercised prior to the filing of the Form 8-K. 
 2.5 Public Warrants and Representative’s Warrants. The Representative’s Warrants shall have the same terms and be in the same form as the Public Warrants except with respect to the Warrant Price as
set forth below in Section 3.1. 
 3. Terms and Exercise of Warrants. 
 3.1 Warrant Price. Each Public Warrant shall, when countersigned by the Warrant Agent, entitle the registered holder thereof, subject to the
provisions of such Public Warrant and of this Warrant Agreement, to purchase from the Company the number of shares of Common Stock stated therein, at the price of $6.00 per whole share, subject to the adjustments provided in Section 4 hereof
and in the last sentence of this Section 3.1. Each Representative’s Warrant shall, when countersigned by the Warrant Agent, entitle the registered holder thereof, subject to the provisions of such Representative’s Warrant and of this
Warrant Agreement, to purchase from the Company the number of shares of Common Stock stated therein, at the price of $7.50 per whole share, subject to the adjustments provided in Section 4 hereof and in the last sentence of this
Section 3.1. The term “Warrant Price” as used in this Warrant Agreement refers to the price per share at which Common Stock may be purchased at the time a Warrant is exercised; provided that any such reduction shall be identical in
percentage terms among all of the Warrants, except that any amendment to the terms of the Representative’s Warrants shall be subject to any limitations and conditions that may be imposed by NASD Corporate Financing Rule 2710. 
  

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 3.2 Duration of Warrants. A Warrant may be exercised only during the period (“Exercise
Period”) commencing on the later of the consummation by the Company of a merger, capital stock exchange, asset acquisition, stock purchase or other similar business combination as described more fully in the Company’s Registration
Statement (“Business Combination”) or             , 2007 and terminating at 5:00 p.m., New York City time on the earlier to occur of (i) ,
             2010 or (ii) the date fixed for redemption of the Warrants as provided in Section 6 of this Agreement (“Expiration Date”); provided, however, if such
expiration date is in the State of New York is a holiday or a day on which banking institutions are authorized or obligated by law or executive order to close, then the Expiration Date shall mean 5:00PM (New York Time), the next following day in
which, in the State of New York is not a holiday or a day which banks are authorized to close. Except with respect to the right to receive the Redemption Price (as set forth in Section 6 hereunder), each Warrant not exercised on or before the
Expiration Date shall become void, and all rights thereunder and all rights in respect thereof under this Agreement shall cease at the close of business on the Expiration Date; provided that any such extension shall be identical in duration among
all of the Warrants, except that any amendment to the terms of the Representative’s Warrants shall be subject to any limitations and conditions that may be imposed by NASD Corporate Financing Rule 2710. 
 3.3 Exercise of Warrants. 
 3.3.1
Payment. Subject to the provisions of the Warrant and this Warrant Agreement, a Warrant, when countersigned by the Warrant Agent, may be exercised by the registered holder thereof by surrendering it, at the office of the Warrant Agent, or at
the office of its successor as Warrant Agent, in the Borough of Manhattan, City and State of New York, with the subscription form, as set forth in the Warrant, duly executed, and (i) by paying in full, in lawful money of the United States, in
cash, good certified check or good bank draft payable to the order of the Company (or as otherwise agreed to by the Company), the Warrant Price for each full share of Common Stock as to which the Warrant is exercised and any and all applicable taxes
due in connection with the exercise of the Warrant, the exchange of the Warrant for the Common Stock, and the issuance of the Common Stock, or (ii) as to Private Warrants only, by surrendering his, her or its Private Warrant for that number of
shares of Common Stock equal to the quotient obtained by dividing (x) the product of the number of shares of Common Stock underlying the Warrant (or such portion thereof as the holder of such Private Warrant elects), multiplied by the
difference between the Warrant Price and the Fair Market Value (as hereinafter defined) by (y) the Fair Market Value. The “Fair Market Value” shall mean the average reported last sale price of the Common Stock (1) during the 10
trading day period ending on the trading day immediately proceeding the date of surrender of such Private Warrant or, (2) in the event that the Company has given a notice of redemption to the holder of such Private Warrant, the third business
day prior to the date on which any notice of redemption is sent to holders of the Private Warrants pursuant to Section 6 hereof. 
 3.3.2 Issuance of Certificates. As soon as practicable after the exercise of any Warrant and the clearance of the funds in payment of the Warrant Price or upon surrender of the Private Warrant (or portion thereof) as set forth in
Section 3.3.1(ii), the Company shall issue to the registered holder of such Warrant a certificate or certificates for the number of full shares of Common Stock to which he is entitled, registered in such name or names as may be directed by him,
her or it, and if such Warrant shall not have been exercised or surrendered in full, a new countersigned Warrant for the number of shares as to which such Warrant shall not have been exercised or surrendered. Notwithstanding the foregoing, the
Company shall not be obligated to deliver any securities pursuant to the exercise of a Public Warrant or a Representative’s Warrant and shall have no obligation to settle the Warrant exercise unless a registration statement under the Act with
respect to the Common Stock is effective, subject to the Company’s satisfying its obligations under Section 7.4 to use its best efforts. In the event that a registration statement with respect to the Common Stock underlying a Public
Warrant or a Representative’s Warrant is not effective under the Act, the holder of such Public Warrant or 
  

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 Representative’s Warrant shall not be entitled to exercise such Warrant and such Warrant may have no value and
expire worthless. In no event will the Company be required to net cash settle the warrant exercise. Public Warrants and Representative’s Warrants may not be exercised by, or securities issued to, any registered holder in any state in which such
exercise would be unlawful. In the event that a registration statement is not effective for the exercised Public Warrants and Representative’s Warrants, the purchaser of a unit containing such Warrant, will have paid the full purchase price for
the unit solely for the shares included in such unit. 
 3.3.3 Valid Issuance. All shares of Common Stock issued upon the proper
exercise or surrender of a Warrant in conformity with this Agreement shall be validly issued, fully paid and nonassessable. 
 3.3.4 Date
of Issuance. Each person in whose name any such certificate for shares of Common Stock is issued shall for all purposes be deemed to have become the holder of record of such shares on the date on which the Warrant was surrendered and payment of
the Warrant Price was made, irrespective of the date of delivery of such certificate, except that, if the date of such surrender and payment is a date when the stock transfer books of the Company are closed, such person shall be deemed to have
become the holder of such shares at the close of business on the next succeeding date on which the stock transfer books are open. 
 4.
Adjustments. 
 4.1 Stock Dividends - Split-Ups. If after the date hereof, and subject to the provisions of Section 4.6
below, the number of outstanding shares of Common Stock is increased by a stock dividend payable in shares of Common Stock, or by a split-up of shares of Common Stock, or other similar event, then, on the effective date of such stock dividend,
split-up or similar event, the number of shares of Common Stock issuable on exercise of each Warrant shall be increased in proportion to such increase in outstanding shares of Common Stock. 
 4.2 Aggregation of Shares. If after the date hereof, and subject to the provisions of Section 4.6, the number of outstanding shares of Common
Stock is decreased by a consolidation, combination, reverse stock split or reclassification of shares of Common Stock or other similar event, then, on the effective date of such consolidation, combination, reverse stock split, reclassification or
similar event, the number of shares of Common Stock issuable on exercise of each Warrant shall be decreased in proportion to such decrease in outstanding shares of Common Stock. 
 4.3 Adjustments in Exercise Price. Whenever the number of shares of Common Stock purchasable upon the exercise of the Warrants is adjusted, as
provided in Sections 4.1 and 4.2 above, the Warrant Price shall be adjusted (to the nearest cent) by multiplying such Warrant Price immediately prior to such adjustment by a fraction (x) the numerator of which shall be the number of shares
of Common Stock purchasable upon the exercise of the Warrants immediately prior to such adjustment, and (y) the denominator of which shall be the number of shares of Common Stock so purchasable immediately thereafter. 
 4.4 Replacement of Securities upon Reorganization, etc. In case of any reclassification or reorganization of the outstanding shares of Common
Stock (other than a change covered by Sections 4.1 or 4.2 hereof or one that solely affects the par value of such shares of Common Stock), or in the case of any merger or consolidation of the Company with or into another corporation (other than
a consolidation or merger in which the Company is the continuing corporation and that does not result in any reclassification or reorganization of the outstanding shares of Common Stock), or in the case of any sale or conveyance to another
corporation or entity of the assets or other property of the 
  

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 Company as an entirety or substantially as an entirety in connection with which the Company is dissolved, the Warrant
holders shall thereafter have the right to purchase and receive, upon the basis and upon the terms and conditions specified in the Warrants and in lieu of the shares of Common Stock of the Company immediately theretofore purchasable and receivable
upon the exercise of the rights represented thereby, the kind and amount of shares of stock or other securities or property (including cash) receivable upon such reclassification, reorganization, merger or consolidation, or upon a dissolution
following any such sale or transfer, that the Warrant holder would have received if such Warrant holder had exercised his, her or its Warrant(s) immediately prior to such event; and if any reclassification also results in a change in shares of
Common Stock covered by Sections 4.1 or 4.2, then such adjustment shall be made pursuant to Sections 4.1, 4.2, 4.3 and this Section 4.4. The provisions of this Section 4.4 shall similarly apply to successive reclassifications,
reorganizations, mergers or consolidations, sales or other transfers. 
 4.5 Notices of Changes in Warrant. Upon every adjustment of
the Warrant Price or the number of shares issuable upon exercise of a Warrant, the Company shall give written notice thereof to the Warrant Agent, which notice shall state the Warrant Price resulting from such adjustment and the increase or
decrease, if any, in the number of shares purchasable at such price upon the exercise of a Warrant, setting forth in reasonable detail the method of calculation and the facts upon which such calculation is based. Upon the occurrence of any event
specified in Sections 4.1, 4.2, 4.3 or 4.4, then, in any such event, the Company shall give written notice to each Warrant holder, at the last address set forth for such holder in the Warrant Register, of the record date or the effective date of the
event. Failure to give such notice, or any defect therein, shall not affect the legality or validity of such event. 
 4.6 No Fractional
Shares. Notwithstanding any provision contained in this Warrant Agreement to the contrary, the Company shall not issue fractional shares upon exercise of Warrants. If, by reason of any adjustment made pursuant to this Section 4, the holder
of any Warrant would be entitled, upon the exercise of such Warrant, to receive a fractional interest in a share, the Company shall, upon such exercise, round up to the nearest whole number the number of the shares of Common Stock to be issued to
the Warrant holder. 
 4.7 Form of Warrant. The form of Warrant need not be changed because of any adjustment pursuant to this
Section 4, and Warrants issued after such adjustment may state the same Warrant Price and the same number of shares as is stated in the Warrants initially issued pursuant to this Agreement. However, the Company may at any time in its sole
discretion make any change in the form of Warrant that the Company may deem appropriate and that does not affect the substance thereof, and any Warrant thereafter issued or countersigned, whether in exchange or substitution for an outstanding
Warrant or otherwise, may be in the form as so changed. 
 5. Transfer and Exchange of Warrants. 
 5.1 Registration of Transfer. The Warrant Agent shall register the transfer, from time to time, of any outstanding Warrant into the Warrant
Register, upon surrender of such Warrant for transfer, properly endorsed with signatures properly guaranteed and accompanied by appropriate instructions for transfer. Upon any such transfer, a new Warrant representing an equal aggregate number of
Warrants shall be issued and the old Warrant shall be cancelled by the Warrant Agent. The Warrants so cancelled shall be delivered by the Warrant Agent to the Company from time to time upon request. 
 5.2 Procedure for Surrender of Warrants. Warrants may be surrendered to the Warrant Agent, together with a written request for exchange or
transfer, and thereupon the Warrant Agent shall issue in exchange therefor one or more new Warrants as requested by the registered holder of the Warrants so surrendered, representing an equal aggregate number of Warrants; provided, however, that in
the event that a Warrant surrendered for transfer bears a restrictive legend, the Warrant Agent shall not 
  

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 cancel such Warrant and shall issue new Warrants in exchange therefor until the Warrant Agent has received an opinion of
counsel for the Company stating that such transfer may be made and indicating whether the new Warrants must also bear a restrictive legend. 
 5.3 Fractional Warrants. The Warrant Agent shall not be required to effect any registration of transfer or exchange which will result in the issuance of a warrant certificate for a fraction of a warrant. 
 5.4 Service Charges. No service charge shall be made for any exchange or registration of transfer of Warrants. 
 5.5 Warrant Execution and Countersignature. The Warrant Agent is hereby authorized to countersign and to deliver, in accordance with the terms of
this Agreement, the Warrants required to be issued pursuant to the provisions of this Section 5, and the Company, whenever required by the Warrant Agent, will supply the Warrant Agent with Warrants duly executed on behalf of the Company for
such purpose. 
 6. Redemption. 
 6.1 Redemption. Subject to Section 6.4 hereof, and the remainder of this Section 6.1, not less than all of the outstanding Warrants may be redeemed, at the option of the Company, at any time after they become exercisable
and prior to their expiration, at the office of the Warrant Agent, upon the notice referred to in Section 6.2, at the price of $.01 per Warrant (“Redemption Price”), provided that the last sales price of the Common Stock has been
equal to or greater than $11.50 per share, on each of twenty (20) trading days within any thirty (30) trading day period ending on the third business day prior to the date on which notice of redemption is given. No Private Warrants shall
be redeemable so long as such Private Warrant is held in the name of the original person or entity to which the Company issued such Private Warrant. The provisions of this Section 6.1 may not be modified, amended or deleted without the prior
written consent of JMP Securities. Notwithstanding anything to the contrary contained herein, the Company shall not call the Warrants for redemption unless there is an effective registration statement under the Act relating to the shares of Common
Stock issuable upon exercise of the Warrants and a current prospectus is available. 
 6.2 Date Fixed for, and Notice of, Redemption.
In the event the Company shall elect to redeem all of the Warrants, the Company shall fix a date for the redemption. Notice of redemption shall be mailed by first class mail, postage prepaid, by the Company not less than 30 days prior to the date
fixed for redemption to the registered holders of the Warrants to be redeemed at their last addresses as they shall appear on the Warrant Register. Any notice mailed in the manner herein provided shall be conclusively presumed to have been duly
given whether or not the registered holder received such notice. 
 6.3 Exercise After Notice of Redemption. The Warrants may be
exercised in accordance with Section 3 of this Warrant Agreement at any time after notice of redemption shall have been given by the Company pursuant to Section 6.2 hereof and prior to the time and date fixed for redemption. On and after
the redemption date, the record holder of the Warrants shall have no further rights except to receive, upon surrender of the Warrants, the Redemption Price. 
 6.4 Outstanding Warrants Only. The Company understands that the redemption rights provided for by this Section 6 apply only to outstanding Warrants. To the extent a person holds rights to purchase
Warrants, such purchase rights shall not be extinguished by redemption. However, once such purchase rights are exercised, the Company may redeem the Warrants issued upon such exercise provided that the criteria for redemption is met. The provisions
of this Section 6.4 may not be modified, amended or deleted without the prior written consent of JMP Securities. 
  

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 7. Other Provisions Relating to Rights of Holders of Warrants. 
 7.1 No Rights as Stockholder. A Warrant does not entitle the registered holder thereof to any of the rights of a stockholder of the Company,
including, without limitation, the right to receive dividends, or other distributions, exercise any preemptive rights to vote or to consent or to receive notice as stockholders in respect of the meetings of stockholders or the election of directors
of the Company or any other matter. 
 7.2 Lost, Stolen, Mutilated, or Destroyed Warrants. If any Warrant is lost, stolen, mutilated,
or destroyed, the Company and the Warrant Agent may on such terms as to indemnity or otherwise as they may in their discretion impose (which shall, in the case of a mutilated Warrant, include the surrender thereof), issue a new Warrant of like
denomination, tenor, and date as the Warrant so lost, stolen, mutilated, or destroyed. Any such new Warrant shall constitute a substitute contractual obligation of the Company, whether or not the allegedly lost, stolen, mutilated, or destroyed
Warrant shall be at any time enforceable by anyone. 
 7.3 Reservation of Common Stock. The Company shall at all times reserve and
keep available a number of its authorized but unissued shares of Common Stock that will be sufficient to permit the exercise in full of all outstanding Warrants issued pursuant to this Warrant Agreement. 
 7.4 Registration of Common Stock. The Company agrees that prior to the commencement of the Exercise Period, it shall file with the Securities and
Exchange Commission a post-effective amendment to the Registration Statement, or a new registration statement, for the registration, under the Act, of the Common Stock issuable upon exercise of the Warrants, and it shall take such action as is
necessary to qualify for sale, in those states in which the Warrants were initially offered by the Company, the Common Stock issuable upon exercise of the Warrants. In either case, the Company will use its best efforts to cause the same to become
effective and to maintain the effectiveness of such registration statement and ensure that a prospectus is available for delivery to the Warrant holders until the expiration of the Warrants in accordance with the provisions of this Warrant
Agreement. The provisions of this Section 7.4 may not be modified, amended or deleted without the prior written consent of JMP Securities. In no event will the registered holder of a Warrant be entitled to receive a net-cash settlement in lieu
of physical settlement in shares of Common Stock, regardless of whether the Company complies with this Section 7.4. 
 8. Concerning
the Warrant Agent and Other Matters. 
 8.1 Payment of Taxes. The Company will from time to time promptly pay all taxes and charges
that may be imposed upon the Company or the Warrant Agent in respect of the issuance or delivery of shares of Common Stock upon the exercise of Warrants, but the Company shall not be obligated to pay any transfer taxes in respect of the Warrants or
such shares. 
 8.2 Resignation, Consolidation, or Merger of Warrant Agent. 
 8.2.1 Appointment of Successor Warrant Agent. The Warrant Agent, or any successor to it hereafter appointed, may resign its duties and be
discharged from all further duties and liabilities hereunder after giving sixty (60) days’ notice in writing to the Company. If the office of the Warrant Agent becomes vacant by resignation or incapacity to act or otherwise, the Company
shall appoint in writing a successor Warrant Agent in place of the Warrant Agent. If the Company shall fail to 
  

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 make such appointment within a period of 30 days after it has been notified in writing of such resignation or incapacity
by the Warrant Agent or by the holder of the Warrant (who shall, with such notice, submit his Warrant for inspection by the Company), then the holder of any Warrant may apply to the Supreme Court of the State of New York for the County of New York
for the appointment of a successor Warrant Agent. Any successor Warrant Agent, whether appointed by the Company or by such court, shall be a corporation organized and existing under the laws of the State of New York, in good standing and having its
principal office in the Borough of Manhattan, City and State of New York, and authorized under such laws to exercise corporate trust powers and subject to supervision or examination by federal or state authority. After appointment, any successor
Warrant Agent shall be vested with all the authority, powers, rights, immunities, duties, and obligations of its predecessor Warrant Agent with like effect as if originally named as Warrant Agent hereunder, without any further act or deed; but if
for any reason it becomes necessary or appropriate, the predecessor Warrant Agent shall execute and deliver, at the expense of the Company, an instrument transferring to such successor Warrant Agent all the authority, powers, and rights of such
predecessor Warrant Agent hereunder; and upon request of any successor Warrant Agent the Company shall make, execute, acknowledge, and deliver any and all instruments in writing for more fully and effectually vesting in and confirming to such
successor Warrant Agent all such authority, powers, rights, immunities, duties, and obligations. 
 8.2.2 Notice of Successor Warrant
Agent. In the event a successor Warrant Agent shall be appointed, the Company shall give notice thereof to the predecessor Warrant Agent and the transfer agent for the Common Stock not later than the effective date of any such appointment.

 8.2.3 Merger or Consolidation of Warrant Agent. Any corporation into which the Warrant Agent may be merged or with which it may be
consolidated or any corporation resulting from any merger or consolidation to which the Warrant Agent shall be a party shall be the successor Warrant Agent under this Warrant Agreement without any further act. 
 8.3 Fees and Expenses of Warrant Agent. 
 8.3.1 Remuneration. The Company agrees to pay the Warrant Agent reasonable remuneration for its services as such Warrant Agent hereunder as set forth on Exhibit A hereto and will reimburse the Warrant Agent upon demand for all
expenditures that the Warrant Agent may reasonably incur in the execution of its duties hereunder. 
 8.3.2 Further Assurances. The
Company agrees to perform, execute, acknowledge, and deliver or cause to be performed, executed, acknowledged, and delivered all such further and other acts, instruments, and assurances as may reasonably be required by the Warrant Agent for the
carrying out or performing of the provisions of this Warrant Agreement. 
 8.4 Liability of Warrant Agent. 
 8.4.1 Reliance on Company Statement. Whenever in the performance of its duties under this Warrant Agreement, the Warrant Agent shall deem it
necessary or desirable that any fact or matter be proved or established by the Company prior to taking or suffering any action hereunder, such fact or matter (unless other evidence in respect thereof be herein specifically prescribed) may be deemed
to be conclusively proved and established by a statement signed by the President or Chairman of the Board of the Company and delivered to the Warrant Agent. The Warrant Agent may rely upon such statement for any action taken or suffered in good
faith by it pursuant to the provisions of this Warrant Agreement. 
  

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 8.4.2 Indemnity. The Warrant Agent shall be liable hereunder only for its own negligence, willful
misconduct or bad faith. The Company agrees to indemnify the Warrant Agent and save it harmless against any and all liabilities, including judgments, costs and reasonable counsel fees, for anything done or omitted by the Warrant Agent in the
execution of this Warrant Agreement except as a result of the Warrant Agent’s negligence, willful misconduct, or bad faith. 
 8.4.3
Exclusions. The Warrant Agent shall have no responsibility with respect to the validity of this Warrant Agreement or with respect to the validity or execution of any Warrant (except its countersignature thereof); nor shall it be responsible
for any breach by the Company of any covenant or condition contained in this Warrant Agreement or in any Warrant; nor shall it be responsible to make any adjustments required under the provisions of Section 4 hereof or responsible for the
manner, method, or amount of any such adjustment or the ascertaining of the existence of facts that would require any such adjustment; nor shall it by any act hereunder be deemed to make any representation or warranty as to the authorization or
reservation of any shares of Common Stock to be issued pursuant to this Warrant Agreement or any Warrant or as to whether any shares of Common Stock will when issued be valid and fully paid and nonassessable. 
 8.5 Acceptance of Agency. The Warrant Agent hereby accepts the agency established by this Warrant Agreement and agrees to perform the same upon
the terms and conditions herein set forth and among other things, shall account promptly to the Company with respect to Warrants exercised and concurrently account for, and pay to the Company, all moneys received by the Warrant Agent for the
purchase of shares of the Company’s Common Stock through the exercise of Warrants. 
 9. Miscellaneous Provisions. 
 9.1 Successors. All the covenants and provisions of this Warrant Agreement by or for the benefit of the Company or the Warrant Agent shall bind and
inure to the benefit of their respective successors and assigns. 
 9.2 Notices. Any notice, statement or demand authorized by this
Warrant Agreement to be given or made by the Warrant Agent or by the holder of any Warrant to or on the Company shall be sufficiently given when so delivered if by hand or overnight delivery or if sent by certified mail or private courier service
within five days after deposit of such notice, postage prepaid, addressed (until another address is filed in writing by the Company with the Warrant Agent), as follows: 
 Builder Acquisition Corp. 
 4902 Alameda Boulevard, NE 
 Albuquerque, NM 87113 
 Attn: Chairman

 Any notice, statement or demand authorized by this Warrant Agreement to be given or made by the holder of any Warrant or by the Company to or on the
Warrant Agent shall be sufficiently given when so delivered if by hand or overnight delivery or if sent by certified mail or private courier service within five days after deposit of such notice, postage prepaid, addressed (until another address is
filed in writing by the Warrant Agent with the Company), as follows: 
 Continental Stock Transfer & Trust Company 
 17 Battery Place 
 New York, NY 10004

 Attn: Compliance Department 
  

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 with a copy in each case to: 
 O’Melveny & Myers LLP 
 Embarcadero Center West 
 275 Battery Street, Suite 2600 
 San Francisco, CA 94111 
 Attn: Peter T.
Healy, Esq. 
 and 
 Mintz,
Levin, Cohn, Ferris, Glovsky and Popeo, P.C. 
 666 Third Avenue 
 New York, New York 10017 
 Attn: Jeffrey P.
Schultz, Esq. 
 and 
 JMP
Securities LLC 
 600 Montgomery Street, Suite 1100 
 San Francisco, CA 94111-2713 
 Attn: Mr. W. Phillip Whitcomb 
           Janet L. Tarkoff, Esq. 
 9.3 Applicable Law. The validity, interpretation, and performance of this Warrant Agreement and of the Warrants shall be governed by construed and
enforced in all respects by the laws of the State of New York, without giving effect to conflict of laws. The Company hereby agrees that any action, proceeding or claim against it arising out of or relating in any way to this Warrant Agreement shall
be brought and enforced in the courts of the State of New York or the United States District Court for the Southern District of New York, and irrevocably submits to such jurisdiction, which jurisdiction shall be exclusive. The Company hereby waives
any objection to such exclusive jurisdiction and that such courts represent an inconvenient forum. Any process or summons to be served upon the Company may be served by transmitting a copy thereof by registered or certified mail, return receipt
requested, postage prepaid, addressed to it at the address set forth in Section 9.2 hereof. Such mailing shall be deemed personal service and shall be legal and binding upon the Company in any action, proceeding or claim. 
 9.4 Persons Having Rights under this Warrant Agreement. Nothing in this Warrant Agreement expressed and nothing that may be implied from any of
the provisions hereof is intended, or shall be construed, to confer upon, or give to, any person or corporation other than the parties hereto and the registered holders of the Warrants and, for the purposes of Sections 3.3.5, 6.1, 6.4, 7.4 and
9.2 hereof, JMP Securities, any right, remedy, or claim under or by reason of this Warrant Agreement or of any covenant, condition, stipulation, promise, or agreement hereof. JMP Securities shall be deemed to be a third-party beneficiary of this
Warrant Agreement with respect to Sections 3.3.5, 6.1, 6.4, 7.4 and 9.2 hereof. All covenants, conditions, stipulations, promises, and agreements contained in this Warrant Agreement shall be for the sole and exclusive benefit of the parties hereto
(and JMP Securities with respect to the Sections 3.3.5, 6.1, 6.4, 7.4 and 9.2 hereof) and their successors and assigns and of the registered holders of the Warrants. 
 9.5 Examination of the Warrant Agreement. A copy of this Warrant Agreement shall be available at all reasonable times at the office of the Warrant Agent in the Borough of Manhattan, City and State of New York,
for inspection by the registered holder of any Warrant. The Warrant Agent may require any such holder to submit his Warrant for inspection by it. 
  

 10 

 9.6 Counterparts. This Warrant Agreement may be executed in any number of counterparts and each of
such counterparts shall for all purposes be deemed to be an original, and all such counterparts shall together constitute but one and the same instrument. 
 9.7 Effect of Headings. The Section headings herein are for convenience only and are not part of this Warrant Agreement and shall not affect the interpretation thereof. 
 9.8 Amendments. This Warrant Agreement may be amended by the parties hereto without the consent of any registered holder for the purpose of curing
any ambiguity, or of curing, correcting or supplementing any defective provision contained herein or adding or changing any other provisions with respect to matters or questions arising under this Warrant Agreement as the parties may deem necessary
or desirable and that the parties deem shall not adversely affect the interest of the registered holders. All other modifications or amendments, including any amendment to increase the Warrant Price or shorten the Exercise Period, shall require the
written consent of each of JMP Securities and the registered holders of a majority of the then outstanding Warrants. Notwithstanding the foregoing, the Company may lower the Warrant Price or extend the duration of the Exercise Period in accordance
with Sections 3.1 and 3.2, respectively, without such consent. 
 9.9 Severability. This Warrant Agreement shall be deemed severable,
and the invalidity or unenforceability of any term or provision hereof shall not affect the validity or enforceability of this Warrant Agreement or of any other term or provision hereof. Furthermore, in lieu of any such invalid or unenforceable term
or provision, the parties hereto intend that there shall be added as a part of this Warrant Agreement a provision as similar in terms to such invalid or unenforceable provision as may be possible and be valid and enforceable. 
 -Signature page immediately follows- 
  

 11 

 IN WITNESS WHEREOF, this Warrant Agreement has been duly executed by the parties hereto as of the day and
year first above written. 
  

							
	Attest	 		 	BUILDER ACQUISITION CORP.
				
	  
	 		 	By:	 	  

		 		 	Name:	 	Michael D. Sivage
		 		 	Title:	 	Chairman and Chief Executive Officer
			
	Attest	 		 	CONTINENTAL STOCK TRANSFER & TRUST COMPANY
				
	  
	 		 	By:	 	  

		 		 	Name:	 	Steven G. Nelson
		 		 	Title:	 	Chairman

  

 12 

 EXHIBIT A 
 Warrant Agent Fees 
  

 13Form of Unit Purchase Option

 Exhibit 4.5 
 UNIT PURCHASE OPTION 
 FOR THE PURCHASE OF 
 625,000 UNITS 
 OF 
 BUILDER ACQUISITION CORP. 

 THE REGISTERED HOLDER OF THIS PURCHASE OPTION BY ITS ACCEPTANCE HEREOF, AGREES THAT IT WILL NOT SELL, TRANSFER OR ASSIGN
THIS PURCHASE OPTION EXCEPT AS HEREIN PROVIDED AND THE REGISTERED HOLDER OF THIS PURCHASE OPTION AGREES THAT IT WILL NOT SELL, TRANSFER, ASSIGN, PLEDGE OR HYPOTHECATE THIS PURCHASE OPTION FOR A PERIOD OF ONE YEAR FOLLOWING THE EFFECTIVE DATE
(DEFINED BELOW) TO ANYONE OTHER THAN (I) JMP SECURITIES (“JMP SECURITIES”) OR AN UNDERWRITER OR A SELECTED DEALER IN CONNECTION WITH THE OFFERING, OR (II) A BONA FIDE OFFICER OR PARTNER OF JMP SECURITIES OR OF ANY SUCH UNDERWRITER OR
SELECTED DEALER. 
 THIS PURCHASE OPTION IS NOT EXERCISABLE PRIOR TO THE LATER OF (I)
                , 2007 AND (II) THE CONSUMMATION BY BUILDER ACQUISITION CORP. (“COMPANY”) OF A MERGER, CAPITAL STOCK EXCHANGE, ASSET ACQUISITION, STOCK
PURCHASE OR OTHER SIMILAR BUSINESS COMBINATION (“BUSINESS COMBINATION”) (AS DESCRIBED MORE FULLY IN THE COMPANY’S REGISTRATION STATEMENT (DEFINED HEREIN)). THIS PURCHASE OPTION SHALL BE VOID AFTER 5:00 P.M EASTERN TIME,
                , 2011. 
 UNIT PURCHASE OPTION

 FOR THE PURCHASE OF 
 625,000
UNITS 
 OF 
 BUILDER ACQUISITION
CORP. 
 1. Purchase Option. 
 THIS
CERTIFIES THAT, in consideration of $100.00 duly paid by or on behalf of JMP Securities, as registered owner of this Purchase Option (the “Purchase Option”), to Builder Acquisition Corp. (“Company”), JMP Securities is entitled,
at any time or from time to time upon the later of (i)                 , 2007 and (ii) the consummation of a Business Combination (“Commencement
Date”), and at or before 5:00 p.m., Eastern Time,                 , 2011 (“Expiration Date”), but not thereafter, to subscribe for, purchase and
receive, in whole or in part, up to Six Hundred and Twenty Five (625,000) units (“Units”) of the Company, each Unit consisting of one share of common stock of the Company, par value $.0001 per share (“Common Stock”), and one
warrant (“Warrant(s)”) expiring four years from the effective date (“Effective Date”) of the registration statement (“Registration Statement”) pursuant to which Units are offered for sale to the public
(“Offering”). Each Warrant is the same as the warrants included in the Units being registered for sale to the public by way of the Registration Statement (“Public Warrants”) except that the Warrants underlying the Units
comprising this Purchase Option have an exercise price of $7.50 per share. If the Expiration Date is a day on which banking institutions in New York are authorized or obligated by law or executive order to close, then this Purchase Option may be
exercised on the next succeeding day which is not such a day in accordance with the terms herein. During the period ending on the Expiration Date, the Company agrees not to take any action that would terminate the Purchase Option. This Purchase
Option is initially exercisable at $8.80 per Unit so purchased; provided, however, that upon the occurrence of any of the events specified in Section 6 hereof, the rights granted by this Purchase Option, including the exercise price per Unit
and the number of Units (and shares of Common Stock and Warrants) to be received upon such exercise, shall be adjusted as therein specified. 
 The term “Exercise Price” shall mean the initial exercise price or the adjusted exercise price, depending on the context. 
 The term “Holder” shall mean, as of any date, JMP Securities and/or any transferee who acquired the Purchase Option(s) in accordance with section 3.1 hereof. 
 The term “Business Day” shall mean any day, except a Saturday, Sunday or legal holiday on which the banking institutions in the City of New
York are authorized or obligated by law or executive order to close. 

 2. Exercise. 
 2.1 Exercise Form. In order to exercise this Purchase Option, the exercise form attached hereto must be duly executed and completed and delivered to the Company, together with this Purchase Option and payment of the Exercise Price
for the Units being purchased payable in cash or by certified check or official bank check. If the subscription rights represented hereby shall not be exercised at or before 5:00 p.m., Eastern time, on the Expiration Date, this Purchase Option shall
become and be void without further force or effect, and all rights represented hereby shall cease and expire. 
 2.2 Legend. Each
certificate for the securities purchased under this Purchase Option shall bear a legend as follows unless such securities have been registered under the Securities Act of 1933, as amended (“Act”): 
 “The securities represented by this certificate have not been registered under the Securities Act of 1933, as amended (“Act”) or applicable
state law. The securities may not be offered for sale, sold or otherwise transferred except pursuant to an effective registration statement under the Act, or pursuant to an exemption from registration under the Act and applicable state law.”

 2.3 Cashless Exercise. 
 2.3.1 Determination of Amount. In lieu of the payment of the Exercise Price multiplied by the number of Units for which this Purchase Option is exercisable (and in lieu of being entitled to receive Common Stock and Warrants) in the
manner required by Section 2.1, the Holder shall have the right (but not the obligation) to convert any exercisable but unexercised portion of this Purchase Option into Units (“Conversion Right”) as follows: upon exercise of the
Conversion Right, the Company shall deliver to the Holder (without payment by the Holder of any of the Exercise Price in cash) that number of Units (or that number of shares of Common Stock and Warrants comprising that number of Units) equal to the
quotient obtained by dividing (x) the “Value” (as defined below) of the portion of the Purchase Option being converted by (y) the Current Market Value (as defined below). The “Value” of the portion of the Purchase
Option being converted shall equal the number of Units underlying the portion of the purchase option being exercised multiplied by the remainder derived from subtracting the Exercise Price from the Current Market Value of a Unit. 
 As used herein, the term “Current Market Value” per Unit at any date means: (A) in the event that neither the Units nor Warrants are
still trading, the remainder derived from subtracting (x) the exercise price of the Warrants multiplied by the number of shares of Common Stock issuable upon exercise of the Warrants underlying one Unit from (y) (i) the Current Market
Price of the Common Stock multiplied by (ii) the number of shares of Common Stock underlying one Unit (including the shares of Common Stock underlying the Warrants included in such Unit); (B) in the event that the Units, Common Stock and
Warrants are still trading, (i) if the Units are listed on a national securities exchange or quoted on the Nasdaq National Market, Nasdaq SmallCap Market or NASD OTC Bulletin Board (or successor such as the Bulletin Board Exchange), the last
sale price of the Units in the principal trading market for the Units as reported by the exchange, Nasdaq or the NASD, as the case may be, on the last trading day preceding the date in question; or (ii) if the Units are not listed on a national
securities exchange or quoted on the Nasdaq National Market, Nasdaq SmallCap Market or the NASD OTC Bulletin Board (or successor exchange), but is traded in the residual over-the-counter market, the closing bid price for Units on the last trading
day preceding the date in question for which such quotations are reported by the Pink Sheets, LLC or similar publisher of such quotations; and (C) in the event that the Units are not still trading but the Common Stock and Warrants underlying
the Units are still trading, the Current Market Price of the Common Stock plus the product of (x) the Current Market Price of the Warrants and (y) the number of shares of Common Stock underlying the Warrants included in one Unit.

 The “Current Market Price” shall mean (i) if the Common Stock (or Warrants, as the case may be) is listed on a national
securities exchange or quoted on the Nasdaq National Market, Nasdaq SmallCap Market or NASD OTC Bulletin Board (or successor such as the Bulletin Board Exchange), the last sale price of the Common Stock (or Warrants) in the principal trading market
for the Common Stock as reported by the Nasdaq National Market, Nasdaq SmallCap Market or NASD OTC Bulletin Board (or successor such as the Bulletin Board Exchange), as the case may be, on the last trading day preceding the date in question;
(ii) if the Common Stock (or 
  

 2 

 Warrants, as the case may be) is not listed on a national securities exchange or quoted on the Nasdaq National Market,
Nasdaq SmallCap Market or the NASD OTC Bulletin Board (or successor exchange), but is traded in the residual over-the-counter market, the closing bid price for the Common Stock (or Warrants) on the last trading day preceding the date in question for
which such quotations are reported by the Pink Sheets, LLC or similar publisher of such quotations; and (iii) if the fair market value of the Common Stock cannot be determined pursuant to clause (i) or (ii) above, such price as the
Board of Directors of the Company shall determine in good faith. 
 2.3.2 Mechanics of Cashless Exercise. The Conversion Right may be
exercised by the Holder on any business day on or after the Commencement Date and not later than the Expiration Date by delivering the Purchase Option with the duly executed exercise form attached hereto with the cashless exercise section completed
to the Company, exercising the Conversion Right and specifying the total number of Units the Holder will purchase pursuant to such Conversion Right. 
 2.3.3 Warrant Exercise. Any Warrants underlying the Units shall be issued pursuant to and subject to the terms and conditions set forth in the Warrant Agreement, entered into by and between the Company and
Continental Stock Transfer & Trust Company, dated as of             , 2006; provided, that, the exercise price of the Warrants shall be as set forth herein. 
 2.4 No Obligation to Net Cash Settle. Notwithstanding anything to the contrary contained in this Purchase Option, in no event will the Company be
required to net cash settle the exercise of the Purchase Option or the Warrants underlying the Purchase Option. The holder of the Purchase Option and the Warrants underlying the Purchase Option will not be entitled to exercise the Purchase Option or
the Warrants underlying such Purchase Option unless a registration statement is effective, or an exemption from the registration requirements is available at such time and, if the holder is not able to exercise the Purchase Option or underlying
Warrants, the Purchase Option and/or the underlying Warrants, as applicable, will expire worthless. 
 3. Transfer. 
 3.1 General Restrictions. The registered Holder of this Purchase Option, by its acceptance hereof, agrees that it will not sell, transfer, assign,
pledge or hypothecate this Purchase Option for a period of one year following the Effective Date to anyone other than (i) JMP Securities or an underwriter or a selected dealer in connection with the Offering, or (ii) a bona fide officer,
partner, subsidiary or other affiliate of JMP Securities or of any such underwriter or selected dealer. On and after the first anniversary of the Effective Date, this Purchase Option may be sold, transferred, assigned, pledged, hypothecated or
otherwise disposed of, in whole or in part, subject to compliance with or exemptions from applicable securities laws. In order to make any permitted assignment, the Holder must deliver to the Company the assignment form attached hereto duly executed
and completed, together with the Purchase Option and payment of all transfer taxes, if any, payable in connection therewith. The Company shall within five business days transfer this Purchase Option on the books of the Company and shall execute and
deliver a new Purchase Option or Purchase Options of like tenor to the appropriate assignee(s) expressly evidencing the right to purchase the aggregate number of Units purchasable hereunder or such portion of such number as shall be contemplated by
any such assignment. 
 3.2 Restrictions Imposed by the Act. The securities evidenced by this Purchase Option shall not be transferred
unless and until (i) the Company has received the opinion of counsel for the Holder that the securities may be transferred pursuant to an exemption from registration under the Act and applicable state securities laws, the availability of which
is established to the reasonable satisfaction of the Company (the Company hereby agreeing that the opinion of O’Melveny & Myers LLP shall be deemed satisfactory evidence of the availability of an exemption), or (ii) a registration
statement or a post-effective amendment to the Registration Statement relating to such securities has been filed by the Company and declared effective by the Securities and Exchange Commission and compliance with applicable state securities law has
been established. 
 4. New Purchase Options to be Issued. 
 4.1 Partial Exercise or Transfer. Subject to the restrictions in Section 3 hereof, this Purchase Option may be exercised or assigned in whole or in part. In the event of the exercise or assignment hereof
in part only, upon surrender of this Purchase Option for cancellation, together with the duly executed exercise or assignment 
  

 3 

 form and funds sufficient to pay any Exercise Price (except to the extent the Holder elects to exercise this Purchase
Option by means of cashless exercise as provided by Section 2.3 above) and/or transfer tax, the Company shall cause to be delivered to the Holder without charge a new Purchase Option of like tenor to this Purchase Option in the name of the
Holder evidencing the right of the Holder to purchase the number of Units purchasable hereunder as to which this Purchase Option has not been exercised or assigned. In addition, the Company shall cause to be delivered to any permitted transferee
without charge a new Purchase Option of like tenor to this Purchase Option in the name of such transferee evidencing the right of such transferee to purchase the number of Units purchasable hereunder as to which this Purchase Option has been
transferred to such transferee. 
 4.2 Lost Certificate. Upon receipt by the Company of evidence satisfactory to it of the loss,
theft, destruction or mutilation of this Purchase Option and of reasonably satisfactory indemnification or the posting of a bond, the Company shall execute and deliver a new Purchase Option of like tenor and date. Any such new Purchase Option
executed and delivered as a result of such loss, theft, mutilation or destruction shall constitute a substitute contractual obligation on the part of the Company. 
 5. Registration Rights. 
 5.1 Demand Registration. 
 5.1.1 Grant of Right. The Company, upon written demand (“Initial Demand Notice”) of the Holder(s) of at least 51% of the Purchase Options
and/or the underlying Units and/or the underlying securities (“Majority Holders”), agrees to use its best efforts to register (the “Demand Registration”) on one occasion, all or any portion of the Purchase Options requested by
the Majority Holders in the Initial Demand Notice and all of the securities underlying such Purchase Options, including the Units, Common Stock, the Warrants and the Common Stock underlying the Warrants (collectively, the “Registrable
Securities”). On such occasion, the Company will file a registration statement or a post-effective amendment to the Registration Statement covering the Registrable Securities within sixty (60) days after receipt of the Initial Demand
Notice and use its best efforts to have such registration statement or post-effective amendment declared effective as soon as possible thereafter. The demand for registration may be made at any time during a period of five years beginning on the
Effective Date. The Company covenants and agrees to give written notice of its receipt of any Initial Demand Notice by any Holder(s) to all other registered Holders of the Purchase Options and/or the Registrable Securities within ten days from the
date of the receipt of any such Initial Demand Notice. 
 5.1.2 Terms. The Company shall bear all fees and expenses attendant to
registering the Registrable Securities, including the fees and expenses of one legal counsel selected by the Majority Holders to represent them in connection with the sale of the Registrable Securities, but the Majority Holders shall pay any and all
underwriting commissions. The Company agrees to use its reasonable best efforts to qualify or register the Registrable Securities in such states as are reasonably requested by the Majority Holder(s); provided, however, that in no event shall the
Company be required to register the Registrable Securities in a State in which such registration would cause (i) the Company to be obligated to qualify to do business in such state, or would subject the Company to taxation as a foreign
corporation doing business in such jurisdiction or (ii) the principal stockholders of the Company to be obligated to escrow their shares of capital stock of the Company. The Company shall cause any registration statement or post-effective
amendment filed pursuant to the demand rights granted under Section 5.1.1 to remain effective for a period of 12 consecutive months from the effective date of such registration statement or post-effective amendment. 
 5.1.3 Effective Registration. A registration will not count as a Demand Registration until the registration statement filed with the Commission
with respect to such Demand Registration has been declared effective and the Company has complied with all of its obligations under this Agreement with respect thereto; provided, however, that if, after such registration statement has been declared
effective, the offering of Registrable Securities pursuant to a Demand Registration is interfered with by any stop order or injunction of the Commission or any other governmental agency or court, the registration statement with respect to such
Demand Registration will be deemed not to have been declared effective, unless and until, (i) such stop order or injunction is removed, rescinded or otherwise terminated, and (ii) the Majority Holders thereafter elect to continue the
offering. 
  

 4 

 5.2 “Piggy-Back” Registration. 
 5.2.1 Grant of Right. In addition to the demand right of registration, the Holders of the Purchase Options shall have the right for a period of
seven years commencing on the Effective Date, to include the Registrable Securities as part of any other registration of securities filed by the Company (other than in connection with a transaction contemplated by Rule 145(a) promulgated under the
Act or pursuant to Form S-8); provided, however, that if, in the written opinion of the Company’s managing underwriter or underwriters, if any, for such offering, the inclusion of the Registrable Securities, when added to the securities being
registered by the Company or the selling stockholder(s), will exceed the maximum amount of the Company’s securities which can be marketed (i) at a price reasonably related to their then current market value, and (ii) without
materially and adversely affecting the entire offering (such maximum dollar amount or maximum number of shares as applicable, the “Maximum Number of Shares”) then the Company shall include in such registration: (A) first, the
Registrable Securities as to which Demand Registration has been requested by the Majority Holders (pro rata in accordance with the number of shares that each such Person has requested be included in such registration, regardless of the number of
shares held by each such Person) that can be sold without exceeding the Maximum Number of Shares; (B) second to the extent that the Maximum Number of Shares has not been reached under the foregoing clause (A), the shares of Common Stock
or other securities that the Company desires to sell that can be sold without exceeding the Maximum Number of Shares; (C) third to the extent that the Maximum Number of Shares has not been reached under the foregoing clauses (A) and
(B), the shares of Common Stock or other securities registrable pursuant to the terms of the Registration Rights Agreement between the Company and the initial investors in the Company, dated as of
            , 2006 (the “Registration Rights Agreement” and such registrable securities, the “Investor Securities”) as to which “piggy-back”
registration has been requested by the holders thereof, pro rata, that can be sold without exceeding the Maximum Number of Shares; and (D) fourth to the extent that the Maximum Number of Shares have not been reached under the foregoing
clauses (A), (B), and (C), the shares of Common Stock or other securities for the account of other persons that the Company is obligated to register pursuant to written contractual arrangements with such persons and that can be sold without
exceeding the Maximum Number of Shares. 
 5.2.2 Terms. The Company shall bear all fees and expenses attendant to registering the
Registrable Securities, including the fees and expenses of one legal counsel selected by the Majority Holders to represent them in connection with the sale of the Registrable Securities but the Majority Holders shall pay any and all underwriting
commissions related to the Registrable Securities. In the event of such a proposed registration, the Company shall furnish the then Holders of outstanding Registrable Securities with not less than fifteen days written notice prior to the proposed
date of filing of such registration statement. Such notice to the Holders shall continue to be given for each applicable registration statement filed (during the period in which the Purchase Option is exercisable) by the Company until such time as
all of the Registrable Securities have been registered and sold. The holders of the Registrable Securities shall exercise the “piggy-back” rights provided for herein by giving written notice, within ten days of the receipt of the
Company’s notice of its intention to file a registration statement. The Company shall cause any registration statement filed pursuant to the above “piggyback” rights to remain effective for at least nine months from the date that the
Holders of the Registrable Securities are first given the opportunity to sell all of such securities. 
 5.3 General Terms.

 5.3.1 Indemnification. The Company shall indemnify the holder(s) of the Registrable Securities to be sold pursuant to any
registration statement hereunder and each person, if any, who controls such Holders within the meaning of Section 15 of the Act or Section 20(a) of the Securities Exchange Act of 1934, as amended (“Exchange Act”), against all
loss, claim, damage, expense or liability (including all reasonable attorneys’ fees and other expenses reasonably incurred in investigating, preparing or defending against litigation, commenced or threatened, or any claim whatsoever whether
arising out of any action between the underwriter and the Company or between the underwriter and any third party or otherwise) to which any of them may become subject under the Act, the Exchange Act or otherwise, arising from such registration
statement but only to the same extent and with the same effect as the provisions pursuant to which the Company has agreed to indemnify the underwriters contained in Section 5 of the Underwriting Agreement between the Company, JMP Securities and
the other underwriters named therein dated the Effective Date. The Holder(s) of the Registrable Securities to be sold pursuant to such registration statement, and their successors and assigns, shall severally, and not jointly, indemnify the Company,
its officers and directors and each person, if any, who controls the Company within the meaning of Section 15 of the Act or Section 20(a) of the Exchange Act, against all loss, claim, damage, expense or liability (including all reasonable
attorneys’ fees and other expenses reasonably incurred in investigating, preparing or 
  

 5 

 defending against any claim whatsoever) to which they may become subject under the Act, the Exchange Act or otherwise,
arising from information furnished by or on behalf of such Holders, or their successors or assigns, in writing, for specific inclusion in such registration statement to the same extent and with the same effect as the provisions contained in
Section 5 of the Underwriting Agreement pursuant to which the underwriters have agreed to indemnify the Company. 
 5.3.2 Exercise of
Purchase Options. Nothing contained in this Purchase Option shall be construed as requiring the Holder(s) to exercise their Purchase Options or Warrants underlying such Purchase Options prior to or after the initial filing of any registration
statement or the effectiveness thereof. 
 5.3.3 Documents Delivered to Holders. The Company shall furnish JMP Securities, as
representative of the Holders participating in any of the foregoing offerings, a signed counterpart, addressed to the participating Holders, of (i) an opinion of counsel to the Company, dated the effective date of such registration statement
(and, if such registration includes an underwritten public offering, an opinion dated the date of the closing under any underwriting agreement related thereto), and (ii) a “cold comfort” letter dated the effective date of such
registration statement (and, if such registration includes an underwritten public offering, a letter dated the date of the closing under the underwriting agreement) signed by the independent public accountants who have issued a report on the
Company’s financial statements included in such registration statement, in each case covering substantially the same matters with respect to such registration statement (and the prospectus included therein) and, in the case of such
accountants’ letter, with respect to events subsequent to the date of such financial statements, as are customarily covered in opinions of issuer’s counsel and in accountants’ letters delivered to underwriters in underwritten public
offerings of securities. The Company shall also deliver promptly to JMP Securities, as representative of the Holders participating in the offering, the correspondence and memoranda described below and copies of all correspondence between the
Commission and the Company, its counsel or auditors and all memoranda relating to discussions with the Commission or its staff with respect to the registration statement and permit JMP Securities, as representative of the Holders, to do such
investigation, upon reasonable advance notice, with respect to information contained in or omitted from the registration statement as it deems reasonably necessary to comply with applicable securities laws or rules of the National Association of
Securities Dealers, Inc (“NASD”). Such investigation shall include access to books, records and properties and opportunities to discuss the business of the Company with its officers and independent auditors, all to such reasonable extent
and at such reasonable times and as often as JMP Securities, as representative of the Holders, shall reasonably request. The Company shall not be required to disclose any confidential information or other records to JMP Securities, as representative
of the Holders, or to any other person, until and unless such persons shall have entered into reasonable confidentiality agreements (in form and substance reasonably satisfactory to the Company), with the Company with respect thereto. 
 5.3.4 Underwriting Agreement. The Company shall enter into an underwriting agreement with the managing underwriter(s), if any, selected by any
holders whose Registrable Securities are being registered pursuant to this Section 5, which managing underwriter shall be reasonably acceptable to the Company. Such agreement shall be reasonably satisfactory in form and substance to the
Company, each holder and such managing underwriters, and shall contain such representations, warranties and covenants by the Company and such other terms as are customarily contained in agreements of that type used by the managing underwriter. The
holders shall be parties to any underwriting agreement relating to an underwritten sale of their Registrable Securities and may, at their option, require that any or all the representations, warranties and covenants of the Company to or for the
benefit of such underwriters shall also be made to and for the benefit of such holders. Such holders shall not be required to make any representations or warranties to or agreements with the Company or the underwriters except as they may relate to
such holders and their intended methods of distribution. Such holders, however, shall agree to such covenants and indemnification and contribution obligations for selling stockholders as are customarily contained in agreements of that type used by
the managing underwriter. Further, such holders shall execute appropriate custody agreements and otherwise cooperate fully in the preparation of the registration statement and other documents relating to any offering in which they include securities
pursuant to this Section 5. Each holder shall also furnish to the Company such information regarding itself, the Registrable Securities held by it, and the intended method of disposition of such securities as shall be reasonably required to
effect the registration of the Registrable Securities. 
 5.3.5 Rule 144 Sale. Notwithstanding anything contained in this
Section 5 to the contrary, the Company shall have no obligation pursuant to Sections 5.1 or 5.2 for the registration of Registrable Securities held 
  

 6 

 by any holder (i) where such holder would then be entitled to sell under Rule 144 promulgated under the Act
(“Rule 144”) within any three-month period (or such other period prescribed under Rule 144 as may be provided by amendment thereof) all of the Registrable Securities then held by such holder, and (ii) where the number of Registrable
Securities held by such holder is within the volume limitations under paragraph (e) of Rule 144 (calculated as if such holder were an affiliate within the meaning of Rule 144). 
 5.3.6 Supplemental Prospectus. The Holder agrees, that upon receipt of any notice from the Company of the happening of any event as a result of
which the prospectus included in the Registration Statement, as then in effect, includes an untrue statement of a material fact or omits to state a material fact required to be stated therein or necessary to make the statements therein not
misleading in light of the circumstances then existing, such holder will immediately discontinue disposition of Registrable Securities pursuant to the Registration Statement covering such Registrable Securities until such holder’s receipt of
the copies of a supplemental or amended prospectus, and, if so desired by the Company, such holder shall deliver to the Company (at the expense of the Company) or destroy (and deliver to the Company a certificate of such destruction) all copies,
other than permanent file copies then in such holder’s possession, of the prospectus covering such Registrable Securities current at the time of receipt of such notice. 
 5.3.7 Withdrawal. If the Majority Holders disapprove of the terms of any underwriting or are not entitled to include all of their Registrable
Securities in any offering, such Majority Holders may elect to withdraw from such offering by giving written notice to the Company and the underwriter or underwriters of their request to withdraw prior to the effectiveness of the registration
statement filed with the Commission. If the Majority Holders withdraw from a proposed offering relating to a Demand Registration, then such registration shall not count as a Demand Registration provided for in Section 5.1. 
 6. Adjustments. 
 6.1 Adjustments to Exercise Price
and Number of Securities. The Exercise Price and the number of Units underlying the Purchase Option shall be subject to adjustment from time to time as hereinafter set forth: 
 6.1.1 Stock Dividends - Split-Ups. If after the date hereof, and subject to the provisions of Section 6.4 below, the number of outstanding
shares of Common Stock is increased by a stock dividend payable in shares of Common Stock or by a split-up of shares of Common Stock or other similar event, then, on the effective date thereof, the number of shares of Common Stock underlying each of
the Units purchasable hereunder shall be increased in proportion to such increase in outstanding shares. In such case, the number of shares of Common Stock, and the exercise price applicable thereto, underlying the Warrants underlying each of the
Units purchasable hereunder shall be adjusted in accordance with the terms of the Warrants. For example, if the Company declares a two-for-one stock dividend and at the time of such dividend this Purchase Option is for the purchase of one Unit at
$8.80 per whole Unit (each Warrant underlying the Units is exercisable for $7.50 per share), upon effectiveness of the dividend, this Purchase Option will be adjusted to allow for the purchase of one Unit at $8.80 per Unit, each Unit entitling the
holder to receive two shares of Common Stock and two Warrants (each Warrant exercisable for $4.40 per share). 
 6.1.2 Aggregation of
Shares. If after the date hereof, and subject to the provisions of Section 6.4, the number of outstanding shares of Common Stock is decreased by a consolidation, combination or reclassification of shares of Common Stock or other similar
event, then, on the effective date thereof, the number of shares of Common Stock underlying each of the Units purchasable hereunder shall be decreased in proportion to such decrease in outstanding shares. In such case, the number of shares of Common
Stock, and the exercise price applicable thereto, underlying the Warrants underlying each of the Units purchasable hereunder shall be adjusted in accordance with the terms of the Warrants. 
 6.1.3 Replacement of Securities upon Reorganization, etc. In case of any reclassification or reorganization of the outstanding shares of Common
Stock other than a change covered by Section 6.1.1 or 6.1.2 hereof or that solely affects the par value of such shares of Common Stock, or in the case of any merger or consolidation of the Company with or into another corporation (other than a
consolidation or merger in which the Company is the continuing corporation and that does not result in any reclassification or reorganization of the outstanding shares of Common Stock), or in the case of any sale or conveyance to another corporation
or entity of 
  

 7 

 the property of the Company as an entirety or substantially as an entirety in connection with which the Company is
dissolved, the Holder of this Purchase Option shall have the right thereafter (until the expiration of the right of exercise of this Purchase Option) to receive upon the exercise hereof, for the same aggregate Exercise Price payable hereunder
immediately prior to such event, the kind and amount of shares of stock or other securities or property (including cash) receivable upon such reclassification, reorganization, merger or consolidation, or upon a dissolution following any such sale or
transfer, by a holder of the number of shares of Common Stock of the Company obtainable upon exercise of this Purchase Option and the underlying Warrants immediately prior to such event; and if any reclassification also results in a change in shares
of Common Stock covered by Section 6.1.1 or 6.1.2, then such adjustment shall be made pursuant to Sections 6.1.1, 6.1.2 and this Section 6.1.3 The provisions of this Section 6.1.3 shall similarly apply to successive reclassifications,
reorganizations, mergers or consolidations, sales or other transfers. 
 6.1.4 Changes in Form of Purchase Option. This form of
Purchase Option need not be changed because of any change pursuant to this Section, and Purchase Options issued after such change may state the same Exercise Price and the same number of Units as are stated in the Purchase Options initially issued
pursuant to this Agreement. The acceptance by any Holder of the issuance of new Purchase Options reflecting a required or permissive change shall not be deemed to waive any rights to an adjustment occurring after the Commencement Date or the
computation thereof. 
 6.1.5 Adjustment of Warrants. To the extent the price of the Warrants are lowered pursuant to Section 3.1
of the Warrant Agreement, dated             , 2006, between the Company and Continental Stock Transfer & Trust Company (the “Warrant Agreement”) the price of the
Warrants underlying the Purchase Option shall be reduced on identical percentage terms, subject to any limitations and conditions that may be imposed by NASD Corporate Financing Rule 2710. To the extent the duration of the Warrants is extended
pursuant to Section 3.2 of the Warrant Agreement, the duration of the Warrants underlying the Purchase Option shall be extended on identical terms, subject to any limitations that may be imposed by NASD Corporate Financing Rule 2710.

 6.2 Substitute Purchase Option. In case of any consolidation of the Company with, or merger of the Company with, or merger of the
Company into, another corporation (other than a consolidation or merger which does not result in any reclassification or change of the outstanding Common Stock), the corporation formed by such consolidation or merger shall execute and deliver to the
Holder a supplemental Purchase Option providing that the holder of each Purchase Option then outstanding or to be outstanding shall have the right thereafter (until the stated expiration of such Purchase Option) to receive, upon exercise of such
Purchase Option, the kind and amount of shares of stock and other securities and property receivable upon such consolidation or merger, by a holder of the number of shares of Common Stock of the Company for which such Purchase Option might have been
exercised immediately prior to such consolidation, merger, sale or transfer. Such supplemental Purchase Option shall provide for adjustments which shall be identical to the adjustments provided in Section 6. The above provision of this Section
shall similarly apply to successive consolidations or mergers. 
 6.3 Elimination of Fractional Interests. The Company shall not be
required to issue certificates representing fractions of shares of Common Stock or Warrants upon the exercise of the Purchase Option, nor shall it be required to issue scrip or pay cash in lieu of any fractional interests, it being the intent of the
parties that all fractional interests shall be eliminated by rounding any fraction up to the nearest whole number of Warrants, shares of Common Stock or other securities, properties or rights. 
 7. Reservation and Listing. The Company shall at all times reserve and keep available out of its authorized shares of Common Stock, solely for the purpose of
issuance upon exercise of the Purchase Options or the Warrants underlying the Purchase Option, such number of shares of Common Stock or other securities, properties or rights as shall be issuable upon the exercise thereof. The Company covenants and
agrees that, upon exercise of the Purchase Options and payment of the Exercise Price therefor, all shares of Common Stock and other securities issuable upon such exercise shall be duly and validly issued, fully paid and non-assessable and not
subject to preemptive rights of any stockholder. The Company further covenants and agrees that upon exercise of the Warrants underlying the Purchase Options and payment of the respective Warrant exercise price therefor, all shares of Common Stock
and other securities issuable upon such exercise shall be duly and validly issued, fully paid and non-assessable and not subject to preemptive rights of any stockholder. As long as the Purchase Options shall be outstanding, the Company shall use its
best efforts to cause all (i) Units and shares of Common Stock issuable upon exercise of the Purchase 
  

 8 

 Options, (iii) Warrants issuable upon exercise of the Purchase Options and (iv) shares of Common Stock issuable
upon exercise of the Warrants included in the Units issuable upon exercise of the Purchase Option to be listed (subject to official notice of issuance) on the American Stock Exchange and all other securities exchanges (or, if applicable on the
Nasdaq National Market, SmallCap Market, NASD OTC Bulletin Board or any successor trading market) on which the Units, the Common Stock or the Public Warrants issued to the public in connection herewith may then be listed and/or quoted. 

8. Certain Notice Requirements. 
 8.1
Holder’s Right to Receive Notice. Nothing herein shall be construed as conferring upon the Holder the right to vote or consent as a stockholder for the election of directors or any other matter, or as having any rights whatsoever as a
stockholder of the Company. If, however, at any time prior to the expiration of the Purchase Options and their exercise, any of the events described in Section 8.2 shall occur, then, in one or more of said events, the Company shall give written
notice of such event at least fifteen (15) days prior to the date fixed as a record date or the date of closing the transfer books for the determination of the stockholders entitled to such dividend, distribution, conversion or exchange of
securities or subscription rights, or entitled to vote on such proposed dissolution, liquidation, winding up or sale. Such notice shall specify such record date or the date of the closing of the transfer books, as the case may be. Notwithstanding
the foregoing, the Company shall deliver to each holder a copy of each notice given to the other stockholders of the Company at the same time and in the same manner that such notice is given to the stockholders. 
 8.2 Events Requiring Notice. The Company shall be required to give the notice described in this Section 8 upon one or more of the following
events: (i) if the Company shall take a record of the holders of its shares of Common Stock for the purpose of entitling them to receive a dividend or distribution payable otherwise than in cash, or a cash dividend or distribution payable
otherwise than out of retained earnings, as indicated by the accounting treatment of such dividend or distribution on the books of the Company, or (ii) the Company shall offer to all the holders of its Common Stock any additional shares of
capital stock of the Company or securities convertible into or exchangeable for shares of capital stock of the Company, or any option, right or warrant to subscribe therefor, or (iii) a dissolution, liquidation or winding up of the Company
(other than in connection with a consolidation or merger) or a sale of all or substantially all of its property, assets and business shall be proposed. 
 8.3 Notice of Change in Exercise Price. The Company shall, promptly after an event requiring a change in the Exercise Price pursuant to Section 6 hereof, send notice to the Holder of such event and change
(“Price Notice”). The Price Notice shall describe the event causing the change and the method of calculating the same and shall be certified as being true and accurate by the Company’s Chief Executive Officer and Chief Financial
Officer. 
 8.4 Transmittal of Notices. All notices, requests, consents and other communications under this Purchase Option shall be
in writing and shall be deemed to have been duly made when hand delivered, or mailed by express mail or private courier service: (i) if to the registered Holder of the Purchase Option, to the address of such Holder as shown on the books of the
Company, or (ii) if to the Company, to the following address or to such other address as the Company may designate by notice to the holders: 
 Builder Acquisition Corp. 
 4902 Alameda Boulevard, NE 
 Albuquerque, NM 87113 
 Attn: Chairman

 9. Miscellaneous. 
 9.1
Amendments. The Company and JMP Securities may from time to time supplement or amend this Purchase Option without the approval of any of the holders in order to cure any ambiguity, to correct or supplement any provision contained herein that
may be defective or inconsistent with any other provisions herein, or to make any other provisions in regard to matters or questions arising hereunder that the Company and JMP Securities may deem necessary or desirable and that the Company and JMP
Securities deem shall not adversely affect the interest of the holders. All other modifications or amendments shall require the written consent of and be signed by the party against whom enforcement of the modification or amendment is sought.

  

 9 

 9.2 Headings. The headings contained herein are for the sole purpose of convenience of reference,
and shall not in any way limit or affect the meaning or interpretation of any of the terms or provisions of this Purchase Option. 
 10. Entire
Agreement. This Purchase Option (together with the other agreements and documents being delivered pursuant to or in connection with this Purchase Option) constitutes the entire agreement of the parties hereto with respect to the subject matter
hereof, and supersedes all prior agreements and understandings of the parties, oral and written, with respect to the subject matter hereof. 
 10.1 Binding Effect. This Purchase Option shall inure solely to the benefit of and shall be binding upon, the Holder and the Company and their permitted assignees, respective successors, legal representative and assigns, and no other
person shall have or be construed to have any legal or equitable right, remedy or claim under or in respect of or by virtue of this Purchase Option or any provisions herein contained. 
 10.2 Governing Law; Submission to Jurisdiction. This Purchase Option shall be governed by and construed and enforced in all respects by the laws
of the State of Delaware, without giving effect to conflict of laws. The Company hereby agrees that any action, proceeding or claim against it arising out of, or relating in any way to this Purchase Option shall be brought and enforced in the courts
of the State of New York or of the United States of America for the Southern District of New York, and irrevocably submits to such jurisdiction, which jurisdiction shall be exclusive. The Company hereby waives any objection to such exclusive
jurisdiction and that such courts represent an inconvenient forum. Any process or summons to be served upon the Company may be served by transmitting a copy thereof by registered or certified mail, return receipt requested, postage prepaid,
addressed to it at the address set forth in Section 8 hereof. Such mailing shall be deemed personal service and shall be legal and binding upon the Company in any action, proceeding or claim. The Company and the Holder agree that the prevailing
party(ies) in any such action shall be entitled to recover from the other party(ies) all of its reasonable attorneys’ fees and expenses relating to such action or proceeding and/or incurred in connection with the preparation therefor.

 10.3 Waiver, Etc. The failure of the Company or the Holder to at any time enforce any of the provisions of this Purchase Option
shall not be deemed or construed to be a waiver of any such provision, nor to in any way affect the validity of this Purchase Option or any provision hereof or the right of the Company or any Holder to thereafter enforce each and every provision of
this Purchase Option. No waiver of any breach, non-compliance or non-fulfillment of any of the provisions of this Purchase Option shall be effective unless set forth in a written instrument executed by the party or parties against whom or which
enforcement of such waiver is sought; and no waiver of any such breach, non-compliance or non-fulfillment shall be construed or deemed to be a waiver of any other or subsequent breach, non-compliance or non-fulfillment. 
 10.4 Execution in Counterparts. This Purchase Option may be executed in one or more counterparts, and by the different parties hereto in separate
counterparts, each of which shall be deemed to be an original, but all of which taken together shall constitute one and the same agreement, and shall become effective when one or more counterparts has been signed by each of the parties hereto and
delivered to each of the other parties hereto. 
 10.5 Exchange Agreement. As a condition of the Holder’s receipt and acceptance
of this Purchase Option, the Holder agrees that, at any time prior to the complete exercise of this Purchase Option by the Holder, if the Company and JMP Securities enter into an agreement (“Exchange Agreement”) pursuant to which they
agree that all outstanding Purchase Options will be exchanged for securities or cash or a combination of both, then the Holder shall agree to such exchange and become a party to the Exchange Agreement. 
 10.6 Underlying Warrants. At any time after exercise by the Holder of this Purchase Option, the Holder may exchange his Warrants (with a $7.50
exercise price) for Public Warrants (with a $6.00 exercise price) upon payment to the Company of the difference between the exercise price of his Warrant and the exercise price of the Public Warrants. 
  

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 11 

 IN WITNESS WHEREOF, the Company has caused this Purchase Option to be signed by its duly authorized
officer as of the      day of             , 2006. 
  

			
	BUILDER ACQUISITION CORP.
		
	By:	 	  

	Name:	 	Michael D. Sivage
	Title:	 	Chairman and Chief Executive Officer

 Form to be used to exercise Purchase Option: 
 Builder Acquisition Corp. 
 4902 Alameda Boulevard, NE 
 Albuquerque, NM 87113 
 Date:            ,
200     
 The undersigned hereby elects irrevocably to exercise all or a portion of the within Purchase Option and to purchase
         Units of Builder Acquisition Corp. and hereby makes payment of $                 (at the rate of
$                 per Unit) in payment of the Exercise Price pursuant thereto. Please issue the Common Stock and Warrants as to which this Purchase Option is
exercised in accordance with the instructions given below. 
 or 
 The undersigned hereby elects irrevocably to convert its right to purchase          Units purchasable
under the within Purchase Option by surrender of the unexercised portion of the attached Purchase Option (with a “Value” of $                 based on a
“Market Price” of $                ). Please issue the securities comprising the Units as to which this Purchase Option is exercised in accordance with
the instructions given below. 
  

	
	  

	Signature
	
	  

	Signature Guaranteed

 INSTRUCTIONS FOR REGISTRATION OF SECURITIES 
  

			
	 Name
	 	  

	(Print in Block Letters)
		
	 Address
	 	  

 NOTICE: THE SIGNATURE TO THIS FORM MUST CORRESPOND WITH THE NAME AS WRITTEN UPON THE FACE OF THE
WITHIN PURCHASE OPTION IN EVERY PARTICULAR WITHOUT ALTERATION OR ENLARGEMENT OR ANY CHANGE WHATSOEVER, AND MUST BE GUARANTEED BY A BANK, OTHER THAN A SAVINGS BANK, OR BY A TRUST COMPANY OR BY A FIRM HAVING MEMBERSHIP ON A REGISTERED NATIONAL
SECURITIES EXCHANGE. 

 Form to be used to assign Purchase Option: 
 ASSIGNMENT 
 (To be executed by the
registered Holder to effect a transfer of the within Purchase Option): 
 FOR VALUE
RECEIVED,                                      
       does hereby sell, assign and transfer unto
                                        
     the right to purchase              Units of Builder Acquisition Corp. (“Company”) evidenced by the within Purchase Option and does hereby
authorize the Company to transfer such right on the books of the Company. 
 Dated:                , 200     
  

	
	  

	Signature
	
	  

	Signature Guaranteed
	

 NOTICE: THE SIGNATURE TO THIS FORM MUST CORRESPOND WITH THE NAME AS WRITTEN UPON THE FACE OF
THE WITHIN PURCHASE OPTION IN EVERY PARTICULAR WITHOUT ALTERATION OR ENLARGEMENT OR ANY CHANGE WHATSOEVER, AND MUST BE GUARANTEED BY A BANK, OTHER THAN A SAVINGS BANK, OR BY A TRUST COMPANY OR BY A FIRM HAVING MEMBERSHIP ON A REGISTERED NATIONAL
SECURITIES EXCHANGE.

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