Document:

ex4_5.htm

    
      

      

    

     

     

    CANADIAN
ZINC CORPORATION

     

    OPTION
AGREEMENT

     

    (Senior
Officer)

    

    This
Option Agreement is entered into between Canadian Zinc Corporation (the "Company") and the Optionee
named below pursuant to the 10% Rolling Stock Option Plan (the "Plan"), a copy of which is
attached hereto, and confirms that:

     

    
      	
              1.

            	
              on
      October 15th,
      2007 (the "Grant
      Date");

            

    

     

    
      	
              2.

            	
              _________________ (the "Optionee");

            

    

     

    
      	
              3.

            	
              was
      granted the option (the "Option") to purchase
      _______ common shares without par value (the "Option Shares") of the
      Company;

            

    

     

    
      	
              4.

            	
              for
      the price (the "Option
      Price") of $0.94 per
      share;

            

    

     

    
      	
              5.

            	
              which
      shall be exercisable ("Vested") as to
      ___________________________________;

            

    

     

    
      	
              6.

            	
              terminating
      on the October
      15th, 2012
      (the "Expiry
      Date");

            

    

     

    all on
the terms and subject to the conditions set out in the Plan.  For
greater certainty, once Option Shares have become Vested, they continue to be
exercisable until the termination or cancellation thereof as provided in this
Option Agreement and the Plan.

     

    By
signing this Option Agreement, the Optionee acknowledges that the Optionee has
read and understands the Plan and agrees to the terms and conditions of the Plan
and this Option Agreement.

     

    Acknowledgement
– Personal Information

     

    The
undersigned hereby acknowledges and consents to:

     

    
      	
              (a)

            	
              the
      disclosure to the Toronto Stock Exchange and all other regulatory
      authorities of all personal information of the undersigned obtained by the
      Company; and

            

    

     

    
      	
              (b)

            	
              the
      collection, use and disclosure of such personal information by the Toronto
      Stock Exchange and all other regulatory authorities in accordance with
      their requirements, including the provision to third party service
      providers, from time to time.

            

    

     

    IN
WITNESS WHEREOF the parties hereto have executed this Option Agreement as of the
15th day of October, 2007.

     

    
      	 
      	
              CANADIAN
      ZINC CORPORATION

              Per:                                                                 

                  Authorized
      SignatoryUnassociated Document

    Exhibit 4.1

     

    
      
        	
                No.
      ___

                 

              	
                OPEN
      ACQUISITION CORP.

                Incorporated
      under the Laws of the State of Delaware

              	
                _________
      UNITS

              
	 
      
	
                UNITS
      EACH CONSISTING OF ONE SHARE OF COMMON STOCK AND ONE WARRANT TO PURCHASE
      ONE SHARE OF COMMON STOCK

              
	 
      
	
                SEE
      REVERSE FOR CERTAIN DEFINITIONS

              

      

      

      THIS
CERTIFIES THAT ___________________________________ IS THE OWNER OF
_________________ UNITS.  Each Unit (“Unit”) consists of one (1) share
of common stock, par value $0.0001 per share (“Common Stock”), of OPEN
ACQUISITION CORP., a Delaware corporation (the “Corporation”), and one warrant
(each, a “Warrant”).  Each Warrant entitles the holder to purchase one
(1) share of Common Stock for $7.50 per share (subject to
adjustment).  The Common Stock and Warrant comprising each Unit
represented by this certificate are not transferable separately prior to five
business days following the earlier to occur of the expiration of the
over-allotment option of the underwriters of the Corporation’s initial public
offering (the “IPO”) and the exercise in full by the underwriters of such
option.  The terms of the Warrants are governed by a warrant agreement
(the “Warrant Agreement”) between the Corporation and its transfer agent to be
entered into upon the effectiveness of the Corporation’s initial public
offering, as amended, restated or supplemented from time to time, and are
subject to the terms and provisions contained therein, all of which terms and
provisions the holder of this certificate consents to by acceptance
hereof.  Copies of the Warrant Agreement will be on file at the office
of the Corporation, and will be available to any Warrant holder on written
request and without cost.

       

      WITNESS
the seal of the Corporation and the facsimile signature of its duly authorized
officer.

       

      Dated:
_______, 2007

       

      
        	 
      	
                OPEN
      ACQUISITION CORP.

                 

                CORPORATE
      SEAL

                 

                Delaware

              	 
      
	
                Authorized
      Officer

              

      

       

       

      
        
           

        

        
           

          
            

          

        

        
           

        

      

       

      
        The
following abbreviations, when used in the inscription on the face of this
certificate, shall be construed as though they were written out in full
according to applicable laws or regulations:

        

      

      
        	
                TEN
      COM

              	
                as
      tenants in common

              	
                Unif
      Gift Min Act -

              	
                ________
      Custodian __________

              
	 	 	 	 
	
                TEN
      ENT

              	
                tenants
      by the entireties

              	 
      	
                   (Cust)                      (Minor)

              
	 	 	 	 
	
                 

                JT
      TEN

              	
                as
      joint tenants with right of survivorship and not as tenants in
      common

              	 
      	
                Under
      Uniform Gifts to Minors Act: ____________________

                (State)

              

      

      

      Additional
abbreviations may also be used though not in the above list.

       

      OPEN
ACQUISITION CORP.

       

      The
Corporation will furnish without charge to each stockholder who so requests the
powers, designations, preferences and relative, participating, option or other
special rights of each class of stock or series thereof of the Corporation and
the qualifications, limitations, or restrictions of such preferences and/or
rights.  This certificate and the Units represented hereby are issued
and shall be held subject to the terms and conditions applicable to the
securities underlying and comprising the Units.

       

      For
Value
Received,                      hereby
sell, assign and transfer unto

       

      PLEASE
INSERT SOCIAL SECURITY OR OTHER IDENTIFYING NUMBER OF ASSIGNEE

       

      
        	 
      
	 
      
	
                (PLEASE
      PRINT OR TYPEWRITE NAME AND ADDRESS, INCLUDING ZIP CODE, OF
      ASSIGNEE)

              
	 
      

      

      Units
represented by the within Certificate, and do hereby irrevocably constitute and
appoint _________________ Attorney, to transfer the said Units on the books of
the within named Corporation with full power of substitution in the
premises.

       

      
        	
                Dated
      __________________

              	
                By:

              
	 
      	
                NOTICE:
      THE SIGNATURE TO THIS ASSIGNMENT MUST CORRESPOND WITH THE NAME AS WRITTEN
      UPON THE FACE OF THE CERTIFICATE IN EVERY PARTICULAR, WITHOUT ALTERATION
      OR ENLARGEMENT OR ANY CHANGE
WHATEVER.Unassociated Document

    Exhibit 4.2

     

    
      
        	
                 

                Organized
      Under the Laws of the State of Delaware

              
	 
      	 
      	 
      
	 
      	 
      	 
      
	
                No.
      ___

              	 
      	
                ________
      Shares

              
	 
      	 
      	 
      
	
                OPEN
      ACQUISITION CORP.

              
	
                100,000,000
      SHARES PAR VALUE $.0001 EACH AUTHORIZED COMMON STOCK

              
	
                SEE
      REVERSE SIDE FOR CERTAIN DEFINITIONS.

              
	 
      	 
      
	
                This Certifies
      that

                Is the owner
of

              
	 
      
	 
      	 
      	 
      
	 
      	 
      	 
      
	 
      	 
      	 
      
	
                Dated:

              	 
      
	 
      	 
      	 
      	 
      	 
      
	 
      	
                Howard
      M. Lorber, Chairman

              	 
      	
                Michael
      S. Liebowitz, President

              	 
      

      

      

       

      
        
           

        

        
           

          
            

          

        

        
           

      

      
        The
following abbreviations, when used in the inscription on the face of this
certificate, shall be construed as though they were written out in full
according to applicable laws or regulations:

         

      

      
        	
                TEN
      COM

              	
                as
      tenants in common

              	
                Unif
      Gift Min Act -

              	
                ________
      Custodian __________

              
	 	 	 	 
	
                TEN
      ENT

              	
                tenants
      by the entireties

              	 
      	
                   (Cust)                      (Minor)

              
	 	 	 	 
	
                 

                JT
      TEN

              	
                as
      joint tenants with right of survivorship and not as tenants in
      common

              	 
      	
                Under
      Uniform Gifts to Minors Act: ____________________

                (State)

              

      

      

      Additional
abbreviations may also be used though not in the above list.

       

      OPEN
ACQUISITION CORP.

       

      The
Corporation will furnish without charge to each stockholder who so requests the
powers, designations, preferences and relative, participating, option or other
special rights of each class of stock or series thereof of the Corporation and
the qualifications, limitations, or restrictions of such preferences and/or
rights.  This certificate and the shares represented hereby are issued
and shall be held subject to the terms and conditions applicable to the
securities underlying and comprising the shares.

       

      For
Value
Received,                      hereby
sell, assign and transfer unto

       

      PLEASE
INSERT SOCIAL SECURITY OR OTHER IDENTIFYING NUMBER OF ASSIGNEE

       

      
        	 
      
	 
      
	
                (PLEASE
      PRINT OR TYPEWRITE NAME AND ADDRESS, INCLUDING ZIP CODE, OF
      ASSIGNEE)

              
	 
      

      

      Shares
represented by the within Certificate, and do hereby irrevocably constitute and
appoint _________________ Attorney, to transfer the said shares on the books of
the within named Corporation with full power of substitution in the
premises.

       

      
        	
                Dated
      __________________

              	
                By:

              
	 
      	
                NOTICE:
      THE SIGNATURE TO THIS ASSIGNMENT MUST CORRESPOND WITH THE NAME AS WRITTEN
      UPON THE FACE OF THE CERTIFICATE IN EVERY PARTICULAR, WITHOUT ALTERATION
      OR ENLARGEMENT OR ANY CHANGE
WHATEVER.

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