Document:

November
      17, 2006

    

    

    Columbus
      Acquisition Corp.

    590
      Madison Avenue

    New
      York,
      New York 10022

    

    

    Ladenburg
      Thalmann & Co. Inc.

    153
      East
      53rd
      Street,
      49th
      Floor

    New
      York,
      New York 10022

    

    

    
      	 	 	
              Re:

            	
              Initial
                Public Offering

            

    

    

    Gentlemen:

    

    The
      undersigned stockholder and director of Columbus Acquisition Corp. (“Company”),
      in consideration of Ladenburg Thalmann & Co. Inc. (“Ladenburg”) entering
      into a letter of intent (“Letter of Intent”) to underwrite an initial public
      offering of the securities of the Company (“IPO”) and embarking on the IPO
      process, hereby agrees as follows (certain capitalized terms used herein are
      defined in paragraph 14 hereof):

    

    1. If
      the
      Company solicits approval of its stockholders of a Business Combination, the
      undersigned will vote all Insider Shares owned by him in accordance with the
      majority of the votes cast by the holders of the IPO Shares. 

    

    2. In
      the
      event that the Company fails to consummate a Business Combination within 24
      months from the effective date (“Effective Date”) of the registration statement
      relating to the IPO, the undersigned will (i) cause the Trust Fund (as defined
      in the Letter of Intent) to be liquidated and distributed to the holders of
      IPO
      Shares and (ii) take all reasonable actions within his power to cause the
      Company to liquidate as soon as reasonably practicable. The undersigned hereby
      waives any and all right, title, interest or claim of any kind in or to any
      distribution of the Trust Fund and any remaining net assets of the Company
      as a
      result of such liquidation with respect to the Insider Shares beneficially
      owned
      by him (“Claim”) and hereby waives any Claim the undersigned may have in the
      future as a result of, or arising out of, any contracts or agreements with
      the
      Company and will not seek recourse against the Trust Fund for any reason
      whatsoever.

    

    
      
        
        

      

      
        
        

        
          

        

      

      
        
        

      

    

    3. In
      order
      to minimize potential conflicts of interest which may arise from multiple
      affiliations, the undersigned agrees to present to the Company for its
      consideration, prior to presentation to any other person or entity, any suitable
      opportunity to acquire an operating business, until the earlier of the
      consummation by the Company of a Business Combination, the liquidation of the
      Company or until such time as the undersigned ceases to be a director of the
      Company, subject to any pre-existing fiduciary and contractual obligations
      the
      undersigned might have.

    

    4. The
      undersigned acknowledges and agrees that the Company will not consummate any
      Business Combination which involves a company which is affiliated with any
      of
      the Insiders unless
      the Company obtains an opinion from an independent investment banking firm
      reasonably acceptable to Ladenburg that the business combination is fair to
      the
      Company’s stockholders from a financial perspective.

     

    5. Neither
      the undersigned, any member of the family of the undersigned, nor any affiliate
      (“Affiliate”) of the undersigned will be entitled to receive and will not accept
      any compensation for services rendered to the Company prior to or in connection
      with the consummation of the Business Combination; provided that commencing
      on
      the Effective Date, Renova U.S. Management LLC (“Related Party”), shall be
      allowed to charge the Company $7,500 per month, representing an allocable share
      of Related Party’s overhead, to compensate it for the Company’s use of Related
      Party’s offices, utilities and personnel. The undersigned shall also be entitled
      to reimbursement from the Company for his out-of-pocket expenses incurred in
      connection with seeking and consummating a Business Combination.  

     

    6. Neither
      the undersigned, any member of the family of the undersigned, nor any Affiliate
      of the undersigned will be entitled to receive or accept a finder’s fee or any
      other compensation in the event the undersigned, any member of the family of
      the
      undersigned or any Affiliate of the undersigned originates a Business
      Combination. 

    

    7. The
      undersigned will escrow all of his Insider Shares acquired prior to the IPO
      until one year after the Company consummates a Business Combination, subject
      to
      the terms of a Stock Escrow Agreement which the Company will enter into with
      the
      undersigned and an escrow agent acceptable to the Company.

    

    8. The
      undersigned agrees to be a Director of
      the
      Company until the earlier of the consummation by the Company of a Business
      Combination or the liquidation of the Company. The undersigned’s biographical
      information furnished to the Company and Ladenburg and attached hereto as
      Exhibit A is true and accurate in all respects, does not omit any material
      information with respect to the undersigned’s background and contains all of the
      information required to be disclosed pursuant to Item 401 of Regulation S-K,
      promulgated under the Securities Act of 1933. The undersigned’s Questionnaire
      furnished to the Company and Ladenburg and annexed as Exhibit B hereto is
      true and accurate in all respects. The undersigned represents and warrants
      that:

    

    
      
        
        

      

      
        
        

        
          

        

      

      
        
        

      

    

    (a) he
      is not
      subject to, or a respondent in, any legal action for, any injunction,
      cease-and-desist order or order or stipulation to desist or refrain from any
      act
      or practice relating to the offering of securities in any
      jurisdiction;

    

    (b) he
      has
      never been convicted of or pleaded guilty to any crime (i) involving any fraud
      or (ii) relating to any financial transaction or handling of funds of another
      person, or (iii) pertaining to any dealings in any securities and he is not
      currently a defendant in any such criminal proceeding; and

    

    (c) he
      has
      never been suspended or expelled from membership in any securities or
      commodities exchange or association or had a securities or commodities license
      or registration denied, suspended or revoked.

    

    9. The
      undersigned has full right and power, without violating any agreement by which
      he is bound, to enter into this letter agreement and to serve as a Director
      of
      the Company.

    

    10. The
      undersigned hereby waives his right to exercise conversion rights with respect
      to any shares of the Company’s common stock owned or to be owned by the
      undersigned, directly or indirectly, and agrees that he will not seek conversion
      with respect to such shares in connection with any vote to approve a Business
      Combination.

    

    11. The
      undersigned hereby agrees to not propose, or vote in favor of, an amendment
      to
      the Company’s Certificate of Incorporation to extend the period of time in which
      the Company must consummate a Business Combination prior to its liquidation.
      Should such a proposal be put before stockholders other than through actions
      by
      the undersigned, the undersigned hereby agrees to vote against such proposal.
      This paragraph may not be modified or amended under any
      circumstances.

    

    12. The
      undersigned authorizes any employer, financial institution, or consumer credit
      reporting agency to release to Ladenburg and its legal representatives or agents
      (including any investigative search firm retained by Ladenburg) any information
      they may have about the undersigned’s background and finances (“Information”).
      Neither Ladenburg nor its agents shall be violating the undersigned’s right of
      privacy in any manner in requesting and obtaining the Information and the
      undersigned hereby releases them from liability for any damage whatsoever in
      that connection.

    

    
      
        
        

      

      
        
        

        
          

        

      

      
        
        

      

    

    13. This
      letter agreement shall be governed by and construed and enforced 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.  

    

    14. As
      used
      herein, (i) a “Business Combination” shall mean an acquisition by merger,
      capital stock exchange, asset or stock acquisition, reorganization or otherwise,
      of an operating business; (ii) “Insiders” shall mean all officers, directors and
      stockholders of the Company immediately prior to the IPO; (iii) “Insider Shares”
shall mean all of the shares of Common Stock of the Company acquired by an
      Insider prior to the IPO or privately from the Company simultaneously with
      the
      IPO; and (iv) “IPO Shares” shall mean the shares of Common Stock issued in the
      Company’s IPO.

    

    

    
 

    [Signature
      page follows]

    
      
        
        

      

      
        
        

        
          

        

      

      
        
        

      

    

     

    
      	 	 	 
	 	BARRY
              J. ROURKE 
	 
 	 
 	 
 
	 	 	/s/ Barry
              J. Rourke
	 	
              
Signature
	 	 

    

    
 

    
      
        
        

      

      
        
        

        
          

        

      

      
        
        

      

    

    Exhibit
      A

    

    Barry
      J.
      Rourke has been a member of our Board of Directors since November 2006. Since
      August 2004, Mr. Rourke has served as Chairman of the Audit Committee of SUAL
      Holding, the company responsible for the management of the SUAL Group assets.
      The SUAL Group is a fully vertically integrated aluminum company that
      ranks amongst the world’s top ten aluminum producers, comprised of
      20 businesses that are located in nine Russian regions and in Ukraine,
      Zaporozhye City and are involved in the production of bauxite,
      alumina, primary aluminum, silicon, semi-finished and finished aluminum
      products. The SUAL Group has recently entered into an agreement with RUSAL,
      the
      world’s third largest aluminum producer, and Glencore International AG, the
      Swiss natural resources group, to create the “United Company RUSAL,” by merging
      their respective aluminum and alumina assets. SUAL Holding is affiliated with
      Columbus Nova through common ownership. Since April 2001, Mr. Rourke has served
      as Chairman of the Board of Threshold Housing, a social housing provider with
      over 6,000 residential units. Mr. Rourke also serves as non-executive Chairman
      of Cadogan Petroleum plc, a company with oil and gas exploration and development
      interests in Ukraine; as an independent member of the Audit Committee for the
      Department of Trade and Industry in the United Kingdom; and as a non-executive
      Director of Surrey and Borders Partnership NHS Trust, a leading mental health
      and learning disability trust in the United Kingdom. Mr. Rourke was an Audit
      Partner with PricewaterhouseCoopers in the United Kingdom from 1984 until his
      retirement in December 2001.Unassociated Document

     

    November
      17, 2006

    

    

    Columbus
      Acquisition Corp.

    590
      Madison Avenue

    New
      York,
      New York 10022

    

    

    Ladenburg
      Thalmann & Co. Inc.

    153
      East
      53rd
      Street,
      49th
      Floor

    New
      York,
      New York 10022

    

    

    
      	 	 	
              Re:

            	
              Initial
                Public Offering

            

    

    

    Gentlemen:

    

    The
      undersigned stockholder and director of Columbus Acquisition Corp. (“Company”),
      in consideration of Ladenburg Thalmann & Co. Inc. (“Ladenburg”) entering
      into a letter of intent (“Letter of Intent”) to underwrite an initial public
      offering of the securities of the Company (“IPO”) and embarking on the IPO
      process, hereby agrees as follows (certain capitalized terms used herein are
      defined in paragraph 14 hereof):

    

    1. If
      the
      Company solicits approval of its stockholders of a Business Combination, the
      undersigned will vote all Insider Shares owned by him in accordance with the
      majority of the votes cast by the holders of the IPO Shares. 

    

    2. In
      the
      event that the Company fails to consummate a Business Combination within 24
      months from the effective date (“Effective Date”) of the registration statement
      relating to the IPO, the undersigned will (i) cause the Trust Fund (as defined
      in the Letter of Intent) to be liquidated and distributed to the holders of
      IPO
      Shares and (ii) take all reasonable actions within his power to cause the
      Company to liquidate as soon as reasonably practicable. The undersigned hereby
      waives any and all right, title, interest or claim of any kind in or to any
      distribution of the Trust Fund and any remaining net assets of the Company
      as a
      result of such liquidation with respect to the Insider Shares beneficially
      owned
      by him (“Claim”) and hereby waives any Claim the undersigned may have in the
      future as a result of, or arising out of, any contracts or agreements with
      the
      Company and will not seek recourse against the Trust Fund for any reason
      whatsoever.

    

    
      
        
        

      

      
        
        

        
          

        

      

      
        
        

      

    

    3. In
      order
      to minimize potential conflicts of interest which may arise from multiple
      affiliations, the undersigned agrees to present to the Company for its
      consideration, prior to presentation to any other person or entity, any suitable
      opportunity to acquire an operating business, until the earlier of the
      consummation by the Company of a Business Combination, the liquidation of the
      Company or until such time as the undersigned ceases to be a director of the
      Company, subject to any pre-existing fiduciary and contractual obligations
      the
      undersigned might have.

    

    4. The
      undersigned acknowledges and agrees that the Company will not consummate any
      Business Combination which involves a company which is affiliated with any
      of
      the Insiders unless
      the Company obtains an opinion from an independent investment banking firm
      reasonably acceptable to Ladenburg that the business combination is fair to
      the
      Company’s stockholders from a financial perspective.

     

    5. Neither
      the undersigned, any member of the family of the undersigned, nor any affiliate
      (“Affiliate”) of the undersigned will be entitled to receive and will not accept
      any compensation for services rendered to the Company prior to or in connection
      with the consummation of the Business Combination; provided that commencing
      on
      the Effective Date, Renova U.S. Management LLC (“Related Party”), shall be
      allowed to charge the Company $7,500 per month, representing an allocable share
      of Related Party’s overhead, to compensate it for the Company’s use of Related
      Party’s offices, utilities and personnel. The undersigned shall also be entitled
      to reimbursement from the Company for his out-of-pocket expenses incurred in
      connection with seeking and consummating a Business Combination.  

     

    6. Neither
      the undersigned, any member of the family of the undersigned, nor any Affiliate
      of the undersigned will be entitled to receive or accept a finder’s fee or any
      other compensation in the event the undersigned, any member of the family of
      the
      undersigned or any Affiliate of the undersigned originates a Business
      Combination. 

    

    7. The
      undersigned will escrow all of his Insider Shares acquired prior to the IPO
      until one year after the Company consummates a Business Combination, subject
      to
      the terms of a Stock Escrow Agreement which the Company will enter into with
      the
      undersigned and an escrow agent acceptable to the Company.

    

    8. The
      undersigned intends to be a Director of
      the
      Company until the earlier of the consummation by the Company of a Business
      Combination or the liquidation of the Company. The undersigned’s biographical
      information furnished to the Company and Ladenburg and attached hereto as
      Exhibit A is true and accurate in all respects, does not omit any material
      information with respect to the undersigned’s background and contains all of the
      information required to be disclosed pursuant to Item 401 of Regulation S-K,
      promulgated under the Securities Act of 1933. The undersigned’s Questionnaire
      furnished to the Company and Ladenburg and annexed as Exhibit B hereto is
      true and accurate in all respects. The undersigned represents and warrants
      that:

     

    
      
        
        

      

      
        
        

        
          

        

      

      
        
        

      

    

    (a)  he
      is not
      subject to, or a respondent in, any legal action for, any injunction,
      cease-and-desist order or order or stipulation to desist or refrain from any
      act
      or practice relating to the offering of securities in any
      jurisdiction;

    

    (b)  he
      has
      never been convicted of or pleaded guilty to any crime (i) involving any fraud
      or (ii) relating to any financial transaction or handling of funds of another
      person, or (iii) pertaining to any dealings in any securities and he is not
      currently a defendant in any such criminal proceeding; and

    

    (c)  he
      has
      never been suspended or expelled from membership in any securities or
      commodities exchange or association or had a securities or commodities license
      or registration denied, suspended or revoked.

    

    9. The
      undersigned has full right and power, without violating any agreement by which
      he is bound, to enter into this letter agreement and to serve as a Director
      of
      the Company.

    

    10. The
      undersigned hereby waives his right to exercise conversion rights with respect
      to any shares of the Company’s common stock owned or to be owned by the
      undersigned, directly or indirectly, and agrees that he will not seek conversion
      with respect to such shares in connection with any vote to approve a Business
      Combination.

    

    11. The
      undersigned hereby agrees to not propose, or vote in favor of, an amendment
      to
      the Company’s Certificate of Incorporation to extend the period of time in which
      the Company must consummate a Business Combination prior to its liquidation.
      Should such a proposal be put before stockholders other than through actions
      by
      the undersigned, the undersigned hereby agrees to vote against such proposal.
      This paragraph may not be modified or amended under any
      circumstances.

    

    12. The
      undersigned authorizes any employer, financial institution, or consumer credit
      reporting agency to release to Ladenburg and its legal representatives or agents
      (including any investigative search firm retained by Ladenburg) any information
      they may have about the undersigned’s background and finances (“Information”).
      Neither Ladenburg nor its agents shall be violating the undersigned’s right of
      privacy in any manner in requesting and obtaining the Information and the
      undersigned hereby releases them from liability for any damage whatsoever in
      that connection.

    

    
      
        
        

      

      
        
        

        
          

        

      

      
        
        

      

    

    13. This
      letter agreement shall be governed by and construed and enforced 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.  

    

    14. As
      used
      herein, (i) a “Business Combination” shall mean an acquisition by merger,
      capital stock exchange, asset or stock acquisition, reorganization or otherwise,
      of an operating business; (ii) “Insiders” shall mean all officers, directors and
      stockholders of the Company immediately prior to the IPO; (iii) “Insider Shares”
shall mean all of the shares of Common Stock of the Company acquired by an
      Insider prior to the IPO or privately from the Company simultaneously with
      the
      IPO; and (iv) “IPO Shares” shall mean the shares of Common Stock issued in the
      Company’s IPO.

    

    
 

    
 

    

    [Signature
      page follows]

     

    
      
        
        

      

      
        
        

        
          

        

      

      
        
        

      

    

     

    
      	 	 	 
	 	ERIC
              ZACHS
	 
 	 
 	 
 
	 	 	/s/ Eric
              Zachs
	 	
              

              Signature

            
	 	 

    

     

    

    
      
        
        

      

      
        
        

        
          

        

      

      
        
        

      

    

    Exhibit
      A

    

    Eric
      Zachs has been a member of our Board of Directors since November 2006.
      Since October 2004, Mr. Zachs has been a Managing Partner of Bantry Bay
      Ventures - Asia, LLC, a private equity firm focused on investment in Asia.
      Since
      March 2006, Mr. Zachs has also served as the Chairman of the Board of Shanxi
      Taiyue Trading and Transportation Co., Ltd., based in Shanxi Province, China.
      Taiyue Trading facilitates the transportation of coal in Shanxi and nearby
      provinces through the rail system as it owns railroad platforms and coal trading
      licenses. From 2000 to 2004, Mr. Zachs was the General Partner of the Entrust
      Capital Frontier Fund. The Frontier Fund is a $50 million venture capital fund
      that focused primarily on software, semiconductors and the wireless industries.
      From 1989 to 1995, Mr. Zachs served in a variety of capacities at Message Center
      USA, Inc., a nationwide paging company, including as President and Chief
      Operating Officer. In 1995, Message Center was sold to AirTouch Paging
      (currently Vodafone
      Group Plc)
      for
      over $100 million. In 1993, Mr. Zachs co-founded Message Center Management,
      Inc.
      which, along with its affiliates, currently owns over 70 antenna sites and
      manages over 800 antenna sites for the wireless industry. Mr. Zachs has been
      Co-Chairman of Message Center Management, Inc. since 1993. Mr. Zachs is the
      former President of the Greater Hartford Jewish Community Center and Hartford
      Dispensary (providing medical and substance abuse care for the indigent) and
      serves on the boards of the Hebrew Health Care, Jewish Federation of Greater
      Hartford and Solomon Schechter Day School. Mr. Zachs received a B.A. from Tufts
      University and a J.D. from Columbia University School of
      Law.

Source: [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00113-of-00352.parquet"}, [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00113-of-00352.parquet"}]]