Document:

Form
      of Lock-Up Agreement

     

    _____________
      __, 2007

    

    Healthcare
      Acquisition Corporation

    2116
      Financial Center

    666
      Walnut Street

    Des
      Moines, Iowa 50309

    

    Re:
       Healthcare
      Acquisition Corp./PharmAthene, Inc. Merger

    

    Ladies
      and Gentlemen:

    

    This
      letter agreement (this “Agreement”) relates to the proposed merger (the
“Merger”) of PAI Acquisition Corp. (the “Merger Sub”), a Delaware corporation
      and a wholly-owned subsidiary of Healthcare Acquisition Corporation (the
“Parent”), a Delaware corporation, with PharmAthene, Inc. (the “Company”), a
      Delaware corporation. The Merger is governed by the certain Agreement and Plan
      of Merger, dated as of January __, 2007, by and among Parent, Merger Sub and
      the
      Company (the “Merger Agreement”) and capitalized terms not otherwise defined
      herein shall have the meanings ascribed to such terms in the Merger
      Agreement.

    

    In
      order
      to induce Parent and Merger Sub to consummate the Merger, the undersigned hereby
      agrees that, as of the date hereof until expiration of the Lock-Up Period (as
      defined below), the undersigned: (a) will not, directly or indirectly, offer,
      sell, agree to offer or sell, solicit offers to purchase, grant any call option
      or purchase any put option with respect to, pledge, borrow or otherwise dispose
      of any Relevant Security (as defined below) and (b) will not establish or
      increase any “put equivalent position” or liquidate or decrease any “call
      equivalent position” with respect to any Relevant Security (in each case within
      the meaning of Section 16 of the Securities Exchange Act of 1934, as amended,
      and the rules and regulations promulgated thereunder) or otherwise enter into
      any swap, derivative or other transaction or arrangement that transfers to
      another, in whole or in part, any economic consequence of ownership of a
      Relevant Security, whether or not such transaction is to be settled by delivery
      of Relevant Securities, other securities, cash or other consideration, except
      in
      accordance with the following schedule: fifty percent (50%) of the Relevant
      Securities shall be released from this Agreement on the date that is six (6)
      months from the Closing Date and the remaining fifty percent (50%) of the
      Relevant Securities shall be released from this Agreement on the date that
      is
      twelve (12) months from the Closing Date (the “Lock-Up Period”). As used herein,
“Relevant Security” means any common stock or 8% promissory notes of the Parent
      (or common stock issuable upon conversion of such notes or as a dividends
      thereon) received by or issuable to the undersigned pursuant to the Merger
      Agreement.

    

    The
      undersigned hereby authorizes Parent during the Lock-Up Period to cause any
      transfer agent for the Relevant Securities to decline to transfer and to note
      stop transfer restrictions on the stock register and other records relating
      to
      Relevant Securities for which the undersigned is the record holder and, in
      the
      case of Relevant Securities for which the undersigned is the beneficial but
      not
      record holder, agrees during the Lock-Up Period to cause the record holder
      to
      authorize the Parent to cause any transfer agent for the Relevant Securities
      to
      decline to transfer and to note stop transfer restrictions on the stock register
      and other records relating to such Relevant Securities in accordance with this
      Agreement.

    

    
      
        
        

      

      
        
        

        
          

        

      

      
        
        

      

       

    

    The
      restrictions set forth in the immediately preceding paragraph shall not apply
      to:

     

    (1) if
      the
      undersigned is a natural person, any transfers made by the undersigned
      (a) as a bona fide gift to any member of the immediate family (as defined
      below) of the undersigned or to a trust the direct or indirect beneficiaries
      of
      which are exclusively the undersigned or members of the undersigned’s immediate
      family, (b) by will or intestate succession upon the death of the
      undersigned or (c) as a bona fide gift to a charity or educational
      institution,

     

    (2) if
      the
      undersigned is a corporation, partnership, limited liability company or other
      business entity, any transfers to any shareholder, partner or member of, or
      owner of a similar equity interest in, the undersigned, as the case may be,
      if,
      in any such case, such transfer is not for value, and

     

    (3) if
      the
      undersigned is a corporation, partnership, limited liability company or other
      business entity, any transfer made by the undersigned (a) in connection with
      the
      sale or other bona fide transfer in a single transaction of all or substantially
      all of the undersigned’s capital stock, partnership interests, membership
      interests or other similar equity interests, as the case may be, or all or
      substantially all of the undersigned’s assets, in any such case not undertaken
      for the purpose of avoiding the restrictions imposed by this agreement or (b)
      to
      another corporation, partnership, limited liability company or other business
      entity so long as the transferee is an affiliate (as defined below) of the
      undersigned and such transfer is not for value.

     

    provided,
      however,
      that in
      the case of any transfer described in clause (1), (2) or (3) above, it
      shall be a condition to the transfer that (A) the transferee executes and
      delivers to the Parent, not later than one business day prior to such transfer,
      a written agreement, in substantially the form of this agreement (it being
      understood that any references to “immediate family” in the agreement executed
      by such transferee shall expressly refer only to the immediate family of the
      undersigned and not to the immediate family of the transferee), and otherwise
      reasonably satisfactory in form and substance to Parent, and (B) if the
      undersigned is required to file a report under Section 16(a) of the
      Securities Exchange Act of 1934, as amended, reporting a reduction in beneficial
      ownership of the Relevant Securities or any securities convertible into or
      exercisable or exchangeable for the Relevant Securities during the Lock-Up
      Period, the undersigned shall include a statement in such report to the effect
      that, in the case of any transfer pursuant to clause (1) above, such
      transfer is being made as a gift or by will or intestate succession or, in
      the
      case of any transfer pursuant to clause (2) above, such transfer is being
      made to a shareholder, partner or member of, or owner of a similar equity
      interest in, the undersigned and is not a transfer for value or, in the case
      of
      any transfer pursuant to clause (3) above, such transfer is being made either
      (a) in connection with the sale or other bona fide transfer in a single
      transaction of all or substantially all of the undersigned’s capital stock,
      partnership interests, membership interests or other similar equity interests,
      as the case may be, or all or substantially all of the undersigned’s assets or
      (b) to another corporation, partnership, limited liability company or other
      business entity that is an affiliate of the undersigned and such transfer is
      not
      for value. For purposes of this paragraph, “immediate family” shall mean a
      spouse, child, grandchild or other lineal descendant (including by adoption),
      father, mother, brother or sister of the undersigned; and “affiliate” shall have
      the meaning set forth in Rule 405 under the Securities Act of 1933, as
      amended.

     

    
      
        
        

      

      
        2

        
          

        

      

      
        
        

      

    

     

    The
      undersigned shall not be subject to any of the foregoing restrictions in this
      Agreement unless and until all officers (as of immediately prior to the
      Effective Time), directors (as of immediately prior to the Effective Time)
      and
      former 1% or greater securityholders of the Company (calculated on a fully
      diluted basis immediately prior to the Effective Time) have executed similar
      agreements.

     

    In
      the
      event a certain percentage of the securities held by the officers (as of
      immediately following the Effective Time), directors (as of immediately
      following the Effective Time) and/or 1% or greater securityholders of the Parent
      (calculated on a fully diluted basis immediately following the Effective Time),
      are released from the restrictions set forth in agreements similar to this
      Agreement (and/or any restrictions set forth in agreements executed prior to
      the
      Effective Time by such officers, directors and/or 1% or greater
      securityholders), the same percentage of the securities held by the undersigned
      shall be immediately and fully released from any remaining restrictions under
      this Agreement concurrently therewith. In the event that the undersigned is
      released early by Parent pursuant to the terms of the this paragraph, the Parent
      shall notify the undersigned concurrently with notification to such other
      released party.

     

    The
      undersigned hereby represents and warrants that the undersigned has full power
      and authority to enter into this Agreement and that this Agreement constitutes
      the legal, valid and binding obligation of the undersigned, enforceable in
      accordance with its terms. Upon request, the undersigned will execute any
      additional documents necessary in connection with enforcement hereof. Any
      obligations of the undersigned shall be binding upon the successors and assigns
      of the undersigned from the date first written above.

     

    [Remainder
      of Page Intentionally Blank]

    
      
        
        

      

      
        3

        
          

        

      

      
        
        

      

    

    

    This
      Agreement shall be governed by and construed in accordance with the laws of
      the
      State of Delaware, without regard to the conflicts of laws principles thereof.
      Delivery of a signed copy of this letter by facsimile transmission shall be
      effective as delivery of the original hereof.

    
      
        	 	 	 
	 	
                Very
                  truly yours,

                

                

                Signature
                  for Individuals:

              
	 
 	 
 	 
 
	 	 	 
	 	
                
Name:

	 	 
	 	 
	 	Signature for
                Entities:

      

      
        	 	 	 
	 	 
	 
 	 
 	 
 
	
                 Name
                  of
                  Entity:   

              	 
	 	 	
                

              
	 	 	 
	 	
                 By:  

              	 
	 	
                

                Name:

                Title:

              
	 	 

      

      
        
          
          

        

        
          4Contract between JingAo Solar Co., Ltd. and Crown Renewable Energy, LLC

 Exhibit 10.11 
  

			
	

	  	 CONTRACT
  
  

 Contract No.:JA-CROWN20061219 
  

			
	Party A: (Seller)	  	Party B: (Buyer)
		
	JingAo Solar Co., Ltd	  	Crown Renewable Energy, LLC
		
	 Add: JingAo Solar Co., Ltd.
	  	Add: 33278 Central Ave, #102 Union City,
	 Jinglong Industrial Park,
	  	          Ca 94587 United States of America
	 Jinglong Street
	  	
	 Ningjin County, Hebei Province 055550
	  	
	 China
	  	

 This contract is made by and between Party A and Party B, and the Buyer agrees to buy and the
Seller agrees to sell the under-mentioned commodity subject to the terms and conditions as stipulated hereinafter: 
  

	 	1.	Party A will sell Party B the commodity according to the following terms and conditions: 

  

	 	1.1	Name of Commodity: 125 mm X 125 mm Mono-crystalline Solar Cells (See the specifications in Appendix 1). 

  

	 	1.2	Quality Requirement: Each cell’s efficiency must be equal to or greater than 15.5% AND each cell’s power must be equal to or greater than 2.32 watt.

  

	 	1.3	Unit price: USD2.95/watt for Q1&Q2, 2007 CIF Hong Kong. Pricing for the following every 6 months will be discussed by both parties before the end of each 6 months term and
prices can be adjusted accordingly. 

  

	 	1.4	Delivery Time: within last 3 days of each month (the 28th-31st). 

  

	 	1.5	Delivery Schedule and Quantity: 

							
	Delivery Schedule
				
	2007	 	10MW	 	Watts	 	Pc @ 2.4w/pp
	2008	 	15MW	 	Watts	 	Pc @ 2.4w/pp
	2009	 	20MW	 	Watts	 	Pc @ 2.4w/pp

  

							
	2007
				
	January	  		  	July	  	1MW
	Febuary	  	0.5MW	  	August	  	1MW
	March	  	0.5MW	  	September	  	1MW
	April	  	1MW	  	October	  	1MW
	May	  	1MW	  	November	  	1MW
	June	  	1MW	  	December	  	1MW

  

	 	1.5a	Beginning delivery scheduled for April 2007 may be moved up 30 days to a March delivery if customer submits order in writing 45 days prior to delivery date. In turn the first
shipment may also be postponed if submitted in writing 30 days prior to scheduled delivery date. In both events delivery schedule would remain at 1.7MW per month through the end of 2007. 

  

	 	1.6	Packaging and Labeling: 

 Package should be strong enough
to suit long distance transportation. 
  

	 	1.7	Payment Term: 

 Buyer shall make payment for the Goods by
T/T in advance, or at sight letter of credit is also sufficient. Net 30 Term will be extended to Buyer after Q2 2007 provided the Buyer establishes a positive payment history and upon review of account. Payment terms can be also be discussed and
decided on annually by both parties. 
  

	 	2.	Quality or quantity discrepancy: 

  

	 	2.1	Quality Requirement: The cells supplied by the Seller must be accorded with the standard GB12632-90; and the power tolerance is ±5%. 

	 	2.2	The Seller shall guarantee that the commodity are brand new, unused and correspond in all respects with the quality, specifications and performance as stipulated in this contract
and the appendix 1. After receiving the products, if quality problem found, the buyer should claim within thirty work days, the seller should give compensation to the buyer with payment or replace them with good quality products within thirty work
days after buyer’s defect notice. If quantity discrepancy found, the buyer should claim within thirty work days, seller should compensate with the agreed amount of products within thirty work days after buyer’s defect notice. If broken
cells are over 2% of total quantity of each shipment, the buyer should claim within thirty work days, the seller should give compensation for the quantity of beyond 2% to the buyer with payment or replace them with good quality products within
thirty work days after buyer’s defect notice. 

  

	 	3.	Late Shipment and Penalty: 

 Should the seller fail
to make delivery on time as stipulated in the contract, with exception of Force Majeure clauses specified in this contract, the seller agree to pay a penalty which shall be deducted by the paying bank from the payment without negotiation. The
penalty, however, shall not exceed 5% of the total value of the goods involved in the late delivery. The rate of penalty is charged at 0.5% of the total value of the goods involved in the late delivery for one day. In case the seller fail to make
delivery four weeks later than the time of shipment stipulated in the contract, the buyer shall have the right to terminate or cancel the contract and the seller, in spite of the termination or cancellation, shall still pay the aforesaid penalty to
the buyer without delay. 
  

	 	4.	Termination: 

 If any one of the Parties shall fail
to fulfill one or more terms under this contract, the other party may at any time have the right to terminate this contract by not less than fifteen days’ written notice to one party specifying any such breach. If such breach is not cured
within fifteen days period, the one party shall terminated the agreement without any further notice. 
  

	 	5.	Arbitration: 

 All dispute in connection with this
contract or the execution there of shall be settled through friendly negotiations between two parties. In event that no settlement can be reached, the case under disputes may then be submitted to one Trade Arbitration Commission agreed by both
parties for Promotion of international Trade for adoration. The decision made by this Commission shall be regarded as final and is binding upon both parties. The fees for arbitration shall be borne by the losing party. 

	 	6.	Force Majeure: 

 Either party shall not be held
responsible for failure or delay to perform all or any part of this agreement due to flood, fire, earthquake, draught, war or any other events which could not be predicted, controlled, avoided or overcome by the relative party. However, the party
affected by the event of Force Majeure shall inform the other party of its occurrence in writing as soon as possible and thereafter send a certificate of the event issued by the relevant authorities to the other party within fifteen days after its
occurrence. 
  

	 	7.	Contract Period: 

 This contract is valid from the
contract being signed by both parties to December,2011. And both parties have the option to renew this contract for another Contract Period two months prior to this contract expiry. The price and terms for the renewed contract will be
negotiated. 
  

	 	8.	Others 

 This Contract is executed in two
counterparts in English, which shall deem equally authentic. This Contract is in two copies, effective since being signed/sealed by both parties. 
  

					
	 Party A :
	  		  	Party B :
			
	JingAo Solar Co., Ltd	  		  	Crown Renewable Energy, LLC
			
	Name: Yan Huaijin	  		  	Name: Nell D. Lahey
			
	Title: CEO	  		  	Title: Chief Executive Officer
			
	 /s/ Yan Huaijin
	  		  	 /s/ Nell D. Lahey

			
	Date:	  		  	Date: January 15, 2007

 Appendix 1 
 Cell
Dimensions: 125mm×125mm 
 Area: 146.57cm2 
  

													
	 Conversion
 Efficiency
	  	 Pmpp
 Average
	  	 Uoc
 Average
	  	 Isc
 Average
	  	 Rs
 Average
	  	 FF
 Average
	  	 Ncell
 Average

	17.5-17.6%	  	2.60	  	0.6232	  	5.3769	  	0.0065	  	77.703	  	0.1755
	17.4-17.5%	  	2.59	  	0.6228	  	5.3643	  	0.0066	  	77.549	  	0.1745
	17.3-17.4%	  	2.58	  	0.6226	  	5.339	  	0.0066	  	77.51	  	0.1735
	17.2-17.3%	  	2.56	  	0.6221	  	5.320	  	0.0066	  	77.43	  	0.1725
	17.1-17.2%	  	2.55	  	0.6214	  	5.311	  	0.0068	  	77.22	  	0.1715
	17-17.1%	  	2.53	  	0.6207	  	5.302	  	0.0069	  	76.97	  	0.1705
	16.75-17%	  	2.50	  	0.6195	  	5.283	  	0.0072	  	76.65	  	0.1689
	16.5-16.75%	  	2.47	  	0.6178	  	5.238	  	0.0073	  	76.37	  	0.1663
	16.25-16.5%	  	2.43	  	0.6156	  	5.1809	  	0.0072	  	76.321	  	0.1638
	16-16.25%	  	2.40	  	0.6131	  	5.1287	  	0.0071	  	76.26	  	0.1614
	15.75-16%	  	2.36	  	0.611	  	5.0904	  	0.0072	  	75.94	  	0.1589
	15.5-15.75%	  	2.32	  	0.6094	  	5.04	  	0.0073	  	75.65	  	0.1563

 Base Material: p-type mono-crystalline silicon doped with boron 
 Junction: phosphorous diffused N on P 
 Front Electrode: Screen-printed,
silver paste 
 Anti-reflecting Coating: Si3N4 
 Back Surface
Filed: Screen-printed aluminum paste 
 Rear Electrode: Screen-printed, silver paste 
 Thickness:about 220+20μm

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