Document:

STOCK
      ESCROW AGREEMENT

    

    STOCK
      ESCROW AGREEMENT, dated as of _____________, 2007 (“Agreement”), by and among
      COLUMBUS ACQUISITION CORP., a Delaware corporation (“Company”), COLUMBUS
      ACQUISITION HOLDINGS LLC, MICHAEL W. ERNESTUS, BARRY J. ROURKE, ERIC ZACHS,
      ROLF
      ZIMMERMANN and JASON LUSTIG (collectively “Initial Stockholders”) and
      CONTINENTAL STOCK TRANSFER & TRUST COMPANY, a
      New
      York corporation (“Escrow
      Agent”).

    

    WHEREAS,
      the Company has entered into an Underwriting Agreement, dated __________, 2007
      (“Underwriting Agreement”), with Ladenburg Thalmann & Co. Inc.
      (“Ladenburg”), pursuant to which, among other matters, Ladenburg has agreed to
      purchase 12,500,000 units (“Units”) of the Company. Each Unit consists of one
      share of the Company’s common stock, par value $.0001 per share (“Common
      Stock”), and one Warrant, each Warrant to purchase one share of Common Stock,
      all as more fully described in the Company’s final prospectus, dated _________,
      2007 (“Prospectus”), which is part of the Company’s Registration Statement on
      Form S-1 (File No. 333-138890) under the Securities Act of 1933, as
      amended (“Registration Statement”), declared effective on ________, 2007
      (“Effective Date”).

    

    WHEREAS,
      the Initial Stockholders have agreed as a condition of the sale of the Units
      to
      deposit their shares of Common Stock of the Company, as set forth opposite
      their
      respective names in Exhibit A attached hereto (collectively “Escrow Shares”), in
      escrow as hereinafter provided.

    

    WHEREAS,
      the Company and the Initial Stockholders desire that the Escrow Agent accept
      the
      Escrow Shares, in escrow, to be held and disbursed as hereinafter
      provided.

    

    IT
      IS
      AGREED:

     

    1. Appointment
      of Escrow Agent.
      The
      Company and the Initial Stockholders hereby appoint the Escrow Agent to act
      in
      accordance with and subject to the terms of this Agreement and the Escrow Agent
      hereby accepts such appointment and agrees to act in accordance with and subject
      to such terms.

    

    2. Deposit
      of Escrow Shares.
      On or
      before the Effective Date, each of the Initial Stockholders shall deliver to
      the
      Escrow Agent certificates representing his respective Escrow Shares, to be
      held
      and disbursed subject to the terms and conditions of this Agreement. Each
      Initial Stockholder acknowledges that the certificate representing his Escrow
      Shares is legended to reflect the deposit of such Escrow Shares under this
      Agreement.

    

    3. Disbursement
      of the Escrow Shares.
      The
      Escrow Agent shall hold the Escrow Shares until one year after the Company
      consummates a Business Combination (as such term is defined in the Registration
      Statement) (“Escrow Period”), on which date it shall, upon written instructions
      from each Initial Stockholder, disburse each of the Initial Stockholder’s Escrow
      Shares (and any applicable stock power) to such Initial Stockholder; provided,
      however, that if the Escrow Agent is notified by the Company pursuant to Section
      6.7 hereof that the Company is being liquidated at any time during the Escrow
      Period, then the Escrow Agent shall promptly destroy the certificates
      representing the Escrow Shares; provided further, however, that if, after the
      Company consummates a Business Combination, it (or the surviving entity)
      subsequently consummates a liquidation, merger, stock exchange or other similar
      transaction which results in all of the stockholders of such entity having
      the
      right to exchange their shares of Common Stock for cash, securities or other
      property, then the Escrow Agent will, upon receipt of a certificate, executed
      by
      the Chief Executive Officer of the Company, in form reasonably acceptable to
      the
      Escrow Agent, that such transaction is then being consummated, release the
      Escrow Shares to the Initial Stockholders upon consummation of the transaction
      so that they can similarly participate. The Escrow Agent shall have no further
      duties hereunder after the disbursement or destruction of the Escrow Shares
      in
      accordance with this Section 3.

     

    
      
        
        

      

      
        
        

        
          

        

      

      
        
        

      

    

    

    4. Rights
      of Initial Stockholders in Escrow Shares.
      

    

    4.1 Voting
      Rights as a Stockholder.
      Subject
      to the terms of the Insider Letter described in Section 4.4 hereof and except
      as
      herein provided, the Initial Stockholders shall retain all of their rights
      as
      stockholders of the Company during the Escrow Period, including, without
      limitation, the right to vote such shares.

    

    4.2 Dividends
      and Other Distributions in Respect of the Escrow Shares.
      During
      the Escrow Period, all dividends payable in cash with respect to the Escrow
      Shares shall be paid to the Initial Stockholders, but all dividends payable
      in
      stock or other non-cash property (“Non-Cash Dividends”) shall be delivered to
      the Escrow Agent to hold in accordance with the terms hereof. As used herein,
      the term “Escrow Shares” shall be deemed to include the Non-Cash Dividends
      distributed thereon, if any.

    

    4.3 Restrictions
      on Transfer.
      During
      the Escrow Period, no sale, transfer or other disposition may be made of any
      or
      all of the Escrow Shares except (i) upon
      the
      dissolution and liquidation of an Initial Stockholder and the distribution
      of
      assets to its members; (ii) by gift to an immediate family member of an Initial
      Stockholder or to a trust, the beneficiary of which is an Initial Stockholder,
      a
      member of an Initial Stockholder or an immediate family member of an Initial
      Stockholder, (iii) by virtue of the laws of descent and distribution upon death
      of any Initial Stockholder, or (iv) pursuant to a qualified domestic relations
      order;
      provided,
      however,
      that
      such permissive transfers may be implemented only upon the respective
      transferee’s written agreement to be bound by the terms and conditions of this
      Agreement and of the Insider Letter signed by the Initial Stockholder
      transferring the Escrow Shares. 

    

    4.4 Insider
      Letters.
      Each of
      the Initial Stockholders has executed a letter agreement with Ladenburg and
      the
      Company, dated as indicated on Exhibit A hereto, and which is filed as an
      exhibit to the Registration Statement (“Insider Letter”), respecting the rights
      and obligations of such Initial Stockholder in certain events, including but
      not
      limited to the liquidation of the Company.

    

    5. Concerning
      the Escrow Agent.

    

    5.1 Good
      Faith Reliance.
      The
      Escrow Agent shall not be liable for any action taken or omitted by it in good
      faith and in the exercise of its own best judgment, and may rely conclusively
      and shall be protected in acting upon any order, notice, demand, certificate,
      opinion or advice of counsel (including counsel chosen by the Escrow Agent),
      statement, instrument, report or other paper or document (not only as to its
      due
      execution and the validity and effectiveness of its provisions, but also as
      to
      the truth and acceptability of any information therein contained) which is
      believed by the Escrow Agent to be genuine and to be signed or presented by
      the
      proper person or persons. The Escrow Agent shall not be bound by any notice
      or
      demand, or any waiver, modification, termination or rescission of this Agreement
      unless evidenced by a writing delivered to the Escrow Agent signed by the proper
      party or parties and, if the duties or rights of the Escrow Agent are affected,
      unless it shall have given its prior written consent thereto. 

     

    
      
        
        

      

      
        2

        
          

        

      

      
        
        

      

    

    

    5.2 Indemnification.
      The
      Escrow Agent shall be indemnified and held harmless by the Company from and
      against any expenses, including counsel fees and disbursements, or loss suffered
      by the Escrow Agent in connection with any action, suit or other proceeding
      involving any claim which in any way, directly or indirectly, arises out of
      or
      relates to this Agreement, the services of the Escrow Agent hereunder, or the
      Escrow Shares held by it hereunder, other than expenses or losses arising from
      the gross negligence or willful misconduct of the Escrow Agent. Promptly after
      the receipt by the Escrow Agent of notice of any demand or claim or the
      commencement of any action, suit or proceeding, the Escrow Agent shall notify
      the other parties hereto in writing. In the event of the receipt of such notice,
      the Escrow Agent, in its sole discretion, may commence an action in the nature
      of interpleader in an appropriate court to determine ownership or disposition
      of
      the Escrow Shares or it may deposit the Escrow Shares with the clerk of any
      appropriate court or it may retain the Escrow Shares pending receipt of a final,
      non-appealable order of a court having jurisdiction over all of the parties
      hereto directing to whom and under what circumstances the Escrow Shares are
      to
      be disbursed and delivered. The provisions of this Section 5.2 shall survive
      in
      the event the Escrow Agent resigns or is discharged pursuant to Sections 5.5
      or
      5.6 below.

    

    5.3 Compensation.
      The
      Escrow Agent shall be entitled to reasonable compensation from the Company
      for
      all services rendered by it hereunder. The Escrow Agent shall also be entitled
      to reimbursement from the Company for all expenses paid or incurred by it in
      the
      administration of its duties hereunder including, but not limited to, all
      counsel, advisors’ and agents’ fees and disbursements and all taxes or other
      governmental charges.

    

    5.4 Further
      Assurances.
      From
      time to time on and after the date hereof, the Company and the Initial
      Stockholders shall deliver or cause to be delivered to the Escrow Agent such
      further documents and instruments and shall do or cause to be done such further
      acts as the Escrow Agent shall reasonably request to carry out more effectively
      the provisions and purposes of this Agreement, to evidence compliance herewith
      or to assure itself that it is protected in acting hereunder.

    

    5.5 Resignation.
      The
      Escrow Agent may resign at any time and be discharged from its duties as escrow
      agent hereunder by its giving the other parties hereto written notice and such
      resignation shall become effective as hereinafter provided. Such resignation
      shall become effective at such time that the Escrow Agent shall turn over to
      a
      successor escrow agent appointed by the Company, the Escrow Shares held
      hereunder. If no new escrow agent is so appointed within the 60 day period
      following the giving of such notice of resignation, the Escrow Agent may deposit
      the Escrow Shares with any court it reasonably deems appropriate.

    

    5.6 Discharge
      of Escrow Agent.
      The
      Escrow Agent shall resign and be discharged from its duties as escrow agent
      hereunder if so requested in writing at any time by the other parties hereto,
      jointly, provided, however, that such resignation shall become effective only
      upon acceptance of appointment by a successor escrow agent as provided in
      Section 5.5.

     

    5.7 Liability.
      Notwithstanding anything herein to the contrary, the Escrow Agent shall not
      be
      relieved from liability hereunder for its own gross negligence or its own
      willful misconduct.

     

    
      
        
        

      

      
        3

        
          

        

      

      
        
        

      

    

    

    6. Miscellaneous.

    

    6.1 Governing
      Law.
      This
      Agreement shall for all purposes be deemed to be made under and shall be
      construed in accordance with the laws of the State of New York, without giving
      effect to conflicts of law principles that would result in the application
      of
      the substantive laws of another jurisdiction.

    

    6.2 Intentionally
      Omitted.
      

    

    6.3 Entire
      Agreement.
      This
      Agreement contains the entire agreement of the parties hereto with respect
      to
      the subject matter hereof and, except as expressly provided herein, may not
      be
      changed or modified except by an instrument in writing signed by the party
      to be
      charged. 

    

    6.4 Headings.
      The
      headings contained in this Agreement are for reference purposes only and shall
      not affect in any way the meaning or interpretation thereof.

    

    6.5 Binding
      Effect.
      This
      Agreement shall be binding upon and inure to the benefit of the respective
      parties hereto and their legal representatives, successors and
      assigns.

    

    6.6 Notices.
      Any
      notice or other communication required or which may be given hereunder shall
      be
      in writing and either be delivered personally or be mailed, certified or
      registered mail, or by private national courier service, return receipt
      requested, postage prepaid, and shall be deemed given when so delivered
      personally or, if mailed, two days after the date of mailing, as
      follows:

    

    If
      to the
      Company, to:

    

    Columbus
      Acquisition Corp.

    153
      East
      53rd
      Street,
      58th
      Floor

    New
      York,
      New York 10022

    Attn: Chairman

    

    If
      to a
      Stockholder, to his address set forth in Exhibit A.

    

    and
      if to
      the Escrow Agent, to:

    

    Continental
      Stock Transfer & Trust Company

    17
      Battery Place

    New
      York,
      New York 10004

    Attn: Chairman

    

    A
      copy of
      any notice sent hereunder shall be sent to:

    

    LeBoeuf,
      Lamb, Greene & MacRae LLP 

    125
      West
      55th Street 

    New
      York,
      NY 10019

    Attn:
      Andrew Hulsh, Esq.

    

    and:

     

    
      
        
        

      

      
        4

        
          

        

      

      
        
        

      

    

     

    Ladenburg
      Thalmann & Co. Inc.

    153
      East
      53rd
      Street,
      49th
      Floor

    New
      York,
      New York 10022

    Attn: Peter
      H.
      Blum

    

    and:

    Graubard
      Miller

    The
      Chrysler Building

    405
      Lexington Avenue

    New
      York,
      New York 10174

    Attn:
      David Alan Miller, Esq.

     

    The
      parties may change the persons and addresses to which the notices or other
      communications are to be sent by giving written notice of any such change in
      the
      manner provided herein for giving notice.

    

     6.7 Liquidation
      of the Company.
      The
      Company shall give the Escrow Agent written notification of the liquidation
      and
      dissolution of the Company in the event that the Company fails to consummate
      a
      Business Combination within the time period(s) specified in the
      Prospectus.

     

    
      
        
        

      

      
        5

        
          

        

      

      
        
        

      

    

    WITNESS
      the execution of this Agreement as of the date first above written.

     

    

    
      	 	 	 
	 	
              COLUMBUS
                ACQUISITION CORP.

            
	 
 	 
 	 
 
	 	By:  	 
	 	
              

              Name:
                

              Title:
                

            

    

     

    
      	 	 	 
	 	
              INITIAL
                STOCKHOLDERS:

              

              COLUMBUS
                ACQUISITION HOLDINGS LLC

            
	 
 	 
 	 
 
	 	By:  	 
	 	
              
                

              

              Name: 

              Title: 

            

    

    

    
      	 	 	 
	 	
              MICHAEL
                W. ERNESTUS

               

              
                
 

            

    

     

    
      
        	 	 	 
	 	
                BARRY
                  J. ROURKE

                 

                
                  
 

              

      

      
        

        
          	 	 	 
	 	
                  ERIC ZACHS

                   

                  
                    
 

                

        

         

      

      
        	 	 	 
	 	
                ROLF
                  ZIMMERMANN

                 

                
                  
 

              

      

       

      
        	 	 	 
	 	
                JASON
                  LUSTIG

                 

                
                  
 

              

      

    

    

    
      	 	 	 
	 	
              CONTINENTAL
                STOCK TRANSFER

              &
                TRUST COMPANY

            
	 
 	 
 	 
 
	 	By:  	 
	 	
              

              Name:
                

              Title:
                

            

    

     

    
      
        
        

      

      
        6

        
          

        

      

       

    

     

    EXHIBIT
      A

    

    
      	
              Name
                and Address of  Initial
                Stockholder 

            	 	
              Number
                

              of
                Shares

            	
               

            	
              Stock
                

              Certificate
                Number

            	
               

            	
              Date
                of 

              Insider
                LetterWARRANT
      ESCROW AGREEMENT

    

    WARRANT
      ESCROW AGREEMENT, dated as of _____________, 2007
      (“Agreement”), by and among COLUMBUS ACQUISITION CORP., a Delaware corporation
      (“Company”), COLUMBUS ACQUISITION HOLDINGS LLC, a Delaware limited liability
      company (“Insider Purchaser”) and CONTINENTAL STOCK TRANSFER & TRUST
      COMPANY, a
      New
      York corporation (“Escrow
      Agent”).

    

    WHEREAS,
      the Company has received a binding commitment
      (“Subscription Agreements”)
      from the
      Insider Purchaser to purchase an aggregate of 3,000,000 warrants (“Insider
      Warrants”).

     

    WHEREAS,
      the Company has entered into an Underwriting Agreement, dated __________, 2007
      (“Underwriting Agree-ment”), with Ladenburg Thalmann & Co. Inc.
      (“Ladenburg”), pur-suant to which, among other matters, Ladenburg has agreed to
      purchase 12,500,000 units (“Units”) of the Company. Each Unit consists of one
      share of the Company’s common stock, par value $.0001 per share (“Common
      Stock”), and one Warrant, each Warrant to purchase one share of Common Stock,
      all as more fully described in the Company’s final prospectus, dated _________,
      2007 (“Prospectus”), which is part of the Company’s Registration Statement on
      Form S-1 (File No. 333-138890) under the Securities Act of 1933, as
      amended (“Registration Statement”), declared effective on ________, 2007
      (“Effective Date”).

    

    WHEREAS,
      the Insider Purchaser has agreed as a condition of the sale of the Units to
      deposit its Insider Warrants, as set forth opposite its name in Exhibit A
      attached hereto (collec-tively “Escrow Warrants”), in escrow as hereinafter
      provided.

    

    WHEREAS,
      the Company and the Insider Purchaser desire that the Escrow Agent accept the
      Escrow Warrants, in escrow, to be held and disbursed as hereinafter
      provided.

    

    IT
      IS
      AGREED:

     

    1. Appointment
      of Escrow Agent.
      The
      Company and the Insider Purchaser hereby appoint the Escrow Agent to act in
      accordance with and subject to the terms of this Agreement and the Escrow Agent
      hereby accepts such appointment and agrees to act in accordance with and subject
      to such terms.

    

    2. Deposit
      of Escrow Warrants.
      Upon
      issuance and receipt of certificates representing the Escrow Warrants, the
      Insider Purchaser shall deliver such certificates to the Escrow Agent, to be
      held and disbursed subject to the terms and conditions of this Agree-ment.
      The
      Insider Purchaser acknowledges that the certi-ficate representing its Escrow
      Warrants is legended to reflect the deposit of such Escrow Warrants under this
      Agreement.

    

    3. Disbursement
      of the Escrow Warrants.
      The
      Escrow Agent shall hold the Escrow Warrants until 30 days after the consummation
      of a Business Combination (as such term is defined in the Registration
      Statement) (“Escrow Period”), on which date it shall, upon written instructions
      from the Insider Purchaser, disburse the Insider Purchaser’s Escrow Warrants to
      the Insider Purchaser; pro-vided, however, that if the Escrow Agent is notified
      by the Company pursuant to Section 6.7 hereof that the Company is being
      liquidated at any time during the Escrow Period, then the Escrow Agent shall
      promptly destroy the certificates representing the Escrow Warrants. The Escrow
      Agent shall have no further duties hereunder after the disbursement or
      destruction of the Escrow Warrants in accordance with this
      Section 3.

    

    
      
         

      

      
         

        
          

        

      

      
         

      

       

    

    4. Restrictions
      on Transfer of Escrow Warrants.
      During
      the Escrow Period, no sale, transfer or other disposition may be made of any
      or
      all of the Escrow Warrants. 

    

    5. Concerning
      the Escrow Agent.

    

    5.1 Good
      Faith Reliance.
      The
      Escrow Agent shall not be liable for any action taken or omitted by it in good
      faith and in the exercise of its own best judgment, and may rely conclusively
      and shall be pro-tected in acting upon any order, notice, demand, certifi-cate,
      opinion or advice of counsel (including counsel chosen by the Escrow Agent),
      statement, instrument, report or other paper or document (not only as to its
      due
      execution and the validity and effectiveness of its provisions, but also as
      to
      the truth and acceptability of any information therein contained) which is
      believed by the Escrow Agent to be genuine and to be signed or presented by
      the
      proper person or persons. The Escrow Agent shall not be bound by any notice
      or
      demand, or any waiver, modification, termina-tion or rescission of this
      Agree-ment unless evidenced by a writing delivered to the Escrow Agent signed
      by
      the proper party or parties and, if the duties or rights of the Escrow Agent
      are
      affected, unless it shall have given its prior written consent thereto.

    

     5.2 Indemnification.
      The
      Escrow Agent shall be indemnified and held harmless by the Company from and
      against any expenses, including coun-sel fees and disbursements, or loss
      suffered by the Escrow Agent in connection with any action, suit or other
      proceeding involving any claim which in any way, directly or indirectly, arises
      out of or relates to this Agreement, the services of the Escrow Agent hereunder,
      or the Escrow Warrants held by it hereunder, other than expenses or losses
      arising from the gross negligence or willful misconduct of the Escrow Agent.
      Promptly after the receipt by the Escrow Agent of notice of any demand or claim
      or the com-mence-ment of any action, suit or proceeding, the Escrow Agent shall
      notify the other parties hereto in writing. In the event of the receipt of
      such
      notice, the Escrow Agent, in its sole discre-tion, may commence an action in
      the
      nature of interpleader in an appropriate court to determine ownership or
      disposition of the Escrow Warrants or it may deposit the Escrow Warrants with
      the clerk of any appropriate court or it may retain the Escrow Warrants pending
      receipt of a final, non-appealable order of a court having jurisdiction over
      all
      of the parties hereto directing to whom and under what circum-stances the Escrow
      Warrants are to be disbursed and delivered. The provisions of this Section
      5.2
      shall survive in the event the Escrow Agent resigns or is discharged pursuant
      to
      Sections 5.5 or 5.6 below.

    

    5.3 Compensation.
      The
      Escrow Agent shall be entitled to reason-able compensation from the Company
      for
      all services rendered by it hereunder. The Escrow Agent shall also be entitled
      to reimburse-ment from the Company for all expenses paid or incurred by it
      in
      the administration of its duties hereunder including, but not limited to, all
      counsel, advisors’ and agents’ fees and disburse-ments and all taxes or other
      governmental charges.

    

    5.4 Further
      Assurances.
      From
      time to time on and after the date hereof, the Company and the Insider Purchaser
      shall deliver or cause to be delivered to the Escrow Agent such further
      documents and instru-ments and shall do or cause to be done such further acts
      as
      the Escrow Agent shall reasonably request to carry out more effectively the
      provisions and purposes of this Agree-ment, to evidence compliance herewith
      or
      to assure itself that it is protected in acting hereunder.

    

    
      
         

      

      
        2

        
          

        

      

      
         

      

       

    

    5.5 Resignation.
      The
      Escrow Agent may resign at any time and be discharged from its duties as escrow
      agent hereunder by its giving the other parties hereto written notice and such
      resignation shall become effective as herein-after provided. Such resignation
      shall become effective at such time that the Escrow Agent shall turn over to
      a
      suc-cessor escrow agent appointed by the Company, the Escrow Warrants held
      hereunder. If no new escrow agent is so appointed within the 60 day period
      follow-ing the giv-ing of such notice of resignation, the Escrow Agent may
      deposit the Escrow Warrants with any court it reasonably deems
      appropriate.

    

    5.6 Discharge
      of Escrow Agent.
      The
      Escrow Agent shall resign and be discharged from its duties as escrow agent
      hereunder if so requested in writing at any time by the other parties hereto,
      jointly, pro-vided, however, that such resignation shall become effec-tive
      only
      upon acceptance of appointment by a successor escrow agent as provided in
      Section 5.5.

    

    5.7 Liability.
      Notwithstanding anything herein to the con-trary, the Escrow Agent shall not
      be
      relieved from liability hereunder for its own gross negligence or its own
      willful misconduct.

    

    6. Miscellaneous.

    

    6.1 Governing
      Law.
      This
      Agreement shall for all purposes be deemed to be made under and shall be
      construed in accordance with the laws of the State of New York, without giving
      effect to conflicts of law principles that would result in the application
      of
      the substantive laws of another jurisdiction.

    

    6.2 Intentionally
      Omitted.
      

    

    6.3 Entire
      Agreement.
      This
      Agreement contains the entire agreement of the parties hereto with respect
      to
      the subject matter hereof and, except as expressly provided herein, may not
      be
      changed or modified except by an instrument in writing signed by the party
      to be
      charged. 

     

    6.4 Headings.
      The
      headings contained in this Agreement are for reference purposes only and shall
      not affect in any way the meaning or interpretation thereof.

    

    6.5 Binding
      Effect.
      This
      Agreement shall be binding upon and inure to the benefit of the respective
      parties hereto and their legal representatives, successors and
      assigns.

    

    6.6 Notices.
      Any
      notice or other communication required or which may be given hereunder shall
      be
      in writing and either be delivered personally or be mailed, certified or
      registered mail, or by private national courier service, return receipt
      requested, postage prepaid, and shall be deemed given when so delivered
      personally or, if mailed, two days after the date of mailing, as
      follows:

    

    
      	 	 	
              If
                to the Company, to:

            

    

    

    Columbus
      Acquisition Corp.

    
      	 	 	 	
              153
                East 53rd
                Street, 58th
                Floor

            

    

    New
      York,
      New York 10022

    Attn: Chairman

    

    
      
         

      

      
        3

        
          

        

      

      
         

      

       

    

    If
      to the
      Insider Purchaser, to its address set forth in Exhibit A.

    

    and
      if to
      the Escrow Agent, to:

    

    Continental
      Stock Transfer & Trust Company

    17
      Battery Place

    New
      York,
      New York 10004

    Attn: Chairman

    

    A
      copy of
      any notice sent hereunder shall be sent to:

    

    LeBoeuf,
      Lamb, Greene & MacRae LLP 

    125
      West
      55th Street 

    New
      York,
      NY 10019

    Attn:
      Andrew Hulsh, Esq.

    

    and: 

    Ladenburg
      Thalmann & Co. Inc.

    153
      East
      53rd
      Street,
      49th
      Floor

    New
      York,
      New York 10022

    Attn: Peter
      H.
      Blum

    

    and: 

    Graubard
      Miller

    The
      Chrysler Building

    405
      Lexington Avenue

    New
      York,
      New York 10174

    Attn:
      David Alan Miller, Esq.

     

    The
      parties may change the persons and addresses to which the notices or other
      communications are to be sent by giving written notice of any such change in
      the
      manner provided herein for giving notice.

    

     6.7 Liquidation
      of the Company.
      The
      Company shall give the Escrow Agent written notification of the liquidation
      and
      dissolution of the Company in the event that the Company fails to consummate
      a
      Business Combination within the time period(s) specified in the
      Prospectus.

    

    
 

    
      
         

      

      
        4

        
          

        

      

      
         

      

       

    

    WITNESS
      the execution of this Agreement as of the date first above written.

    

    COLUMBUS
      ACQUISITION CORP.

    

    

    By:        
       ______________________________  

     

     

    INSIDER
      PURCHASER:

     

     

    COLUMBUS
      ACQUISITION HOLDINGS LLC

     

    

    

    By:        
       ___________________________

     

     

    CONTINENTAL
      STOCK TRANSFER

    &
      TRUST COMPANY

    

    

    By:________________________________

         
      Name: 

         
      Title: 

    

     

     

    
      
         

      

      
        5

        
          

        

      

      
         

      

       

    

    EXHIBIT
      A

    

    
      	
              Name
                and Address of 

              Insider
                Purchaser 

            	 	
              Number
                

              of
                Warrants

            	 	
               

               

              Warrant
                Number

            	 	
              Date
                of 

              Subscription
                Agreement

Source: [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00117-of-00352.parquet"}, [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00117-of-00352.parquet"}]]