Document:

NEITHER
      THIS WARRANT NOR THE STOCK FOR WHICH IT MAY BE EXERCISED HAS BEEN REGISTERED
      UNDER THE SECURITIES ACT OF 1933, AS AMENDED ("SECURITIES ACT"), OR ANY OTHER
      FEDERAL OR STATE SECURITIES LAW, AND MAY NOT BE SOLD, TRANSFERRED OR OTHERWISE
      DISPOSED OF EXCEPT AS EXPRESSLY PROVIDED HEREIN. 

    

     

    ISORAY,
      INC.

     

    
      	 	
              COMMON
                STOCK PURCHASE
                WARRANT   

            	
              No._____

            

    

     

    This
      certifies that, for value received, __________________________ ("Holder"),
      is
      entitled to subscribe for and purchase from IsoRay, Inc., a Minnesota
      corporation ("Company"), ________ shares, subject to adjustment as set forth
      in
      Article II below
      ("Warrant Shares"), of Common Stock of the Company, par value $0.001 per share
      ("Common Stock"), at the exercise price of $6.00 per share, which price is
      subject to adjustment as set forth in Article II below
      (the "Exercise Price"), at any time and from time to time beginning on the
      date
      of this Warrant as set forth below ("Exercise Date"), and ending on the date
      that is two (2) years after the date of this Warrant ("Expiration Date"), upon
      written notice from the Holder to the Company ("Notice") and subject to the
      terms provided herein.

     

    This
      Warrant is subject to the following provisions, terms and conditions:

     

    ARTICLE
      I.

     

    EXERCISE;
      RESERVATION OF SHARES

     

    Section
      1.01 Warrant
      Exercise.
      The
      rights represented by this Warrant may be exercised by the Holder at any time
      and from time to time prior to the expiration of this Warrant, upon Notice,
      by
      the surrender at the principal office of the Company of this Warrant together
      with a duly executed subscription in the form annexed hereto as Exhibit A
      ("Subscription Form") and accompanied by payment, in certified or immediately
      available funds, of the Exercise Price for the number of Warrant Shares
      specified in the Subscription Form. The shares so purchased shall be deemed
      to
      be issued to the Holder as the record owner of such shares as of the close
      of
      business on the date on which this Warrant shall be exercised as hereinabove
      provided. No fractional shares or scrip representing fractional shares shall
      be
      issued upon exercise of this Warrant and the number of shares that shall be
      issued upon such exercise shall be rounded to the nearest whole share without
      the payment or receipt of any additional consideration. 

     

    
      
        
        

      

      
        
        

        
          

        

      

      
        
        

      

    

    Section
      1.02 Certificates. Certificates for the shares purchased pursuant to
      Section 1.01 shall be delivered to the Holder
      within ten (10) days after the rights represented by this Warrant shall have
      been so exercised, and a new Warrant in the name of the Holder representing
      the
      rights, if any, that shall not have been exercised prior to the Expiration
      Date
      with respect to this Warrant shall also be delivered to such Holder within
      such
      time, with such new Warrant to be identical in all other respects to this
      Warrant. The Holder shall for all purposes be deemed to have become the holder
      of record of the Warrant Shares on the date this Warrant was exercised (the
      date
      the Holder has fully complied with the requirements of Section 1.01),
      irrespective of the date of delivery of the certificate or certificates
      representing the Warrant Shares; provided that, if the date such exercise is
      made is a date when the stock transfer books of the Company are closed, such
      person shall be deemed to have become the holder of record of the Warrant Shares
      at the close of business on the next succeeding date on which the stock transfer
      books are open. The term "Warrant," as used herein, includes any Warrants into
      which this Warrant may be divided or combined and any subsequent Warrants issued
      upon the transfer or exchange or reissuance upon loss hereof.

     

    Section
      1.03 Optional
      Call.
      At any
      time after the date of this Warrant and following the first consecutive two
      month period thereafter in which the Company's common stock was trading at
      or
      above $9.00 per share, the Company shall have the option to call all or a
      portion of this Warrant (and as to which no Subscription Form has been received
      by the Company), at $0.01 per share (the "Call Price"). Notice of the call
      (the "Call Notice") shall be given to the Holder at least 30 days
      prior to the date on which the call will occur (the "Call Date"). Such notice
      shall be deemed received 2 days after it is deposited in the United States
      mail,
      certified or registered mail, postage prepaid, or 1 day after it is
      deposited with an express mail courier for overnight delivery, or on the same
      day that it is delivered via hand delivery or telefacsimile transmission. This
      Warrant may be exercised in accordance with Section 1.01 at any time prior
      to
      the Call Date. 

     

    Section
      1.04 Company
      Covenants.
      The
      Company represents, warrants, covenants and agrees: 

     

    (a) That
      all
      shares of Common Stock that may be issued upon exercise of this Warrant will,
      upon issuance, be validly issued, fully paid and nonassessable and free from
      all
      taxes, liens and charges with respect to the issue thereof; and

     

    (b) That
      during the period the rights represented by this Warrant may be exercised,
      the
      Company will at all times have authorized, and reserved for the purpose of
      issue
      and delivery upon exercise of the rights evidenced by this Warrant, a sufficient
      number of shares of Common Stock to provide for the exercise of the rights
      represented by this Warrant. 

     

    
      
        
        

      

      
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    ARTICLE
      II.

     

    ADJUSTMENTS

     

    Section
      2.01 Adjustment
      Events.

     

    (a) Capital
      Events.
      If any
      reorganization or reclassification of the capital stock of the Company, or
      any
      consolidation or merger of the Company with another corporation, or the sale
      of
      all or substantially all of its assets to another corporation (in any instance,
      a "Capital Event") shall be effected in such a way that holders of Common Stock
      shall be entitled to receive stock, securities or assets (including cash) with
      respect to or in exchange for their Common Stock, then, as a condition of such
      Capital Event, lawful and adequate provisions shall be made whereby the Holder
      hereof shall thereafter have the right to purchase and receive upon the basis
      and upon the terms and conditions specified in this Warrant and in lieu of
      the
      shares of the Common Stock of the Company immediately theretofore purchasable
      and receivable upon the exercise of the rights represented hereby, an amount
      of
      such shares of stock, securities or assets (including cash) as may have been
      issued or payable with respect to or in exchange for a number of outstanding
      shares of such Common Stock equal to the number of shares of such stock
      immediately theretofore purchasable and receivable upon the exercise of the
      rights represented hereby had such Capital Event not taken place. 

     

    (b) Preservation
      of Value.
      In the
      case of any Capital Event, appropriate provision shall be made with respect
      to
      the rights and interests of the Holder of this Warrant to the end that the
      provisions hereof (including, without limitation, provisions for adjustment
      of
      the number of shares that may be issued upon exercise of this Warrant and the
      Exercise Price hereof) shall thereafter be applicable, as nearly as may be,
      in
      relation to any shares of stock, securities or assets (including cash)
      thereafter deliverable upon the exercise of the rights represented hereby.
      

     

    (c) Obligation
      Expressly Assumed.
      The
      Company shall not effect any consolidation, merger or sale of all or
      substantially all of its assets, unless prior to the consummation thereof the
      successor corporation (if other than the Company) resulting from such
      consolidation or merger, or the corporation into or for the securities of which
      the previously outstanding stock of the Company shall be changed in connection
      with such consolidation or merger, or the corporation purchasing such assets,
      as
      the case may be, shall assume by written instrument executed and mailed or
      delivered to the registered Holder at the last address of such Holder appearing
      on the books of the Company, the obligation to deliver to such Holder, upon
      exercise of this Warrant, such shares of stock, securities or assets (including
      cash) as, in accordance with the foregoing provisions, such Holder may be
      entitled to purchase. 

     

    
      
        
        

      

      
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    Section
      2.02 Subdivision
      or Combination of Stock.
      In the
      event that the Company shall at any time subdivide or split its outstanding
      shares of Common Stock into a greater number of shares, the number of Warrant
      Shares subject to issuance upon exercise of this Warrant at the opening of
      business on the day upon which such subdivision becomes effective shall be
      proportionately increased. In the event that the outstanding shares of Common
      Stock of the Company shall be combined into a smaller number of shares, the
      number of shares subject to issuance upon exercise of this Warrant at the
      opening of business on the day upon which such subdivision becomes effective
      shall be proportionately decreased. Any such increase or decrease, as the case
      may be, shall become effective immediately after the opening of business on
      the
      day following the day upon which such subdivision or combination, as the case
      may be, becomes effective.

     

    Section
      2.03 Stock
      Dividends.
      In the
      event that the Company shall at any time declare any dividend or distribution
      upon its Common Stock payable in stock, the number of Warrant Shares subject
      to
      issuance upon exercise of this Warrant shall be increased by the number (and
      the
      kind) of shares which would have been issued to the holder of this Warrant
      if
      this Warrant were exercised immediately prior to such dividend. Such increase
      shall become effective immediately after the opening of business on the day
      following the record date for such dividend or distribution. 

     

    Section
      2.04 Treasury
      Shares.
      The
      number of shares of Common Stock outstanding at any given time shall not include
      shares of the Company owned or held by or for the account of the Company.

     

    Section
      2.05 Minimum
      Adjustment.
      No
      adjustment in the number of shares that may be issued upon exercise of this
      Warrant as provided in this Article II shall be required unless such adjustment
      would require an increase or decrease in such number of shares of at least
      one
      percent (1%) of the then adjusted number of shares of Common Stock that may
      be
      issued upon exercise of this Warrant; provided, however, that any such
      adjustments that by reason of the foregoing are not required to be made shall
      be
      carried forward and taken into account and included in determining the amount
      of
      any subsequent adjustment; and provided further, that if the Company shall
      at
      any time subdivide or combine the outstanding shares of Common Stock or issue
      additional shares of Common Stock as a dividend, said percentage shall forthwith
      be proportionately adjusted so as to appropriately reflect the same.

     

    Section
      2.06 Adjustment
      of Exercise Price.
      Whenever the number of shares of Common Stock that may be issued upon exercise
      of this Warrant is adjusted, and effective at the time such adjustment is
      effective, as provided in Sections 2.01, 2.02 and 2.03 of this Article II,
      the Exercise Price shall be adjusted (to the nearest whole cent) by multiplying
      each such Exercise Price immediately prior to such adjustment by a fraction
      (x)
      the numerator of which shall be the number of shares of Common Stock which
      may
      be issued upon the exercise of each such Warrant immediately prior to such
      adjustment, and (y) the denominator of which shall be the number of shares
      of
      Common Stock so purchasable immediately thereafter. The Company may retain
      a
      firm of independent certified public accountants (which may not be the regular
      accountants employed by the Company) to make any required computation, and
      a
      certificate signed by such firm shall be conclusive evidence of the correctness
      of such adjustment. 

     

    
      
        
        

      

      
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    Section
      2.07 Record
      Date.
      In the
      event that the Company shall not take a record of the holders of its Common
      Stock for the purpose of entitling them to receive a dividend payable in Common
      Stock, then such record date shall be deemed for the purposes of this Article
      II
      to be the date of the issue or sale of the shares of Common Stock deemed to
      have
      been issued or sold upon the declaration of such dividend. 

     

    Section
      2.8 Officer's
      Certificate.
      Whenever the Exercise Price shall be adjusted as provided in this Article II,
      the Company shall forthwith file with its Secretary and retain in the permanent
      records of the Company, an officer's certificate showing the adjusted Exercise
      Price determined as provided in this Article II, setting forth in reasonable
      detail the facts requiring such adjustment, including a statement of the number
      of additional or fewer shares of Common Stock, and such other facts as may
      be
      reasonably necessary to show the reason for and the method of computing such
      adjustment. Each such officer's certificate shall be made available at all
      reasonable times for inspection by the Holder. 

     

    Section
      2.9 Notice
      of Adjustment.
      Upon
      any adjustment of the number of shares that may be issued upon exercise of
      this
      Warrant or the Exercise Price, the Company shall give notice thereof to the
      Holder, which notice shall state the increase or decrease, if any, in the number
      of shares that may be issued upon the exercise of this Warrant and the Exercise
      Price, setting forth in reasonable detail the method of calculation and the
      facts upon which such calculation is based. 

     

    Section
      2.10 Definition
      of "Common Stock".
      As used
      in this Article II, the term "Common Stock" shall mean and include all of the
      Company's authorized Common Stock of any class as constituted on the date of
      this Warrant as set forth below, and shall also include any capital stock of
      any
      class of the Company thereafter authorized that shall not be limited to a fixed
      sum or stated value in respect of the rights of the holders thereof to
      participate in dividends or the distribution of assets upon the voluntary or
      involuntary liquidation, dissolution or winding up of the Company. 

     

    ARTICLE
      III.

     

    TRANSFER
      RESTRICTIONS

     

    Section
      3.01 Securities
      Law Transfer Restrictions.
      By
      taking and holding this Warrant, the Holder (i) acknowledges that neither this
      Warrant nor any shares of Common Stock that may be issued upon exercise of
      this
      Warrant have been registered under the Securities Act or any applicable state
      securities or blue sky law (collectively, "Securities Laws"); (ii) agrees not
      to
      sell, transfer or otherwise dispose of this Warrant, and agrees not to sell,
      transfer or otherwise dispose of any such shares of Common Stock without
      registration unless the sale, transfer or disposition of such shares can be
      effected without registration and in compliance with the Securities Laws; and
      (iii) agrees not to sell, transfer or otherwise dispose of this Warrant or
      any
      portion thereof or interest therein except as otherwise expressly permitted
      herein. No part of this Warrant or any portion thereof or interest therein
      may
      be transferred, whether voluntarily, involuntarily or by operation of law,
      except to a Permitted Transferee as hereinafter defined. “Permitted Transferee”
shall mean a transferee or assignee that (a)(i) is an entity as to which the
      Holder is the beneficial owner of at least a majority of the equity therein
      and
      the Holder has voting control thereover, (ii) is a member of the Holder's family
      or a trust for the benefit of an individual Holder or (iii) a successor by
      inheritance or intestate succession to any interest in this Warrant or any
      portion thereof and (b) accepts by written instrument reasonably acceptable
      to
      the Company each of the terms and conditions that govern this Warrant. Any
      certificate for shares of Common Stock issued upon exercise of this Warrant
      shall bear an appropriate legend describing the foregoing restrictions, unless
      such shares of Common Stock have been effectively registered under the
      applicable Securities Laws. 

     

    
      
        
        

      

      
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    Section
      3.02 Provision
      of Information by Holder.
      The
      Holder shall make available to the Company such written information, presented
      in form and content satisfactory to the Company, as the Company may reasonably
      request, from time to time, in order to make the determination provided for
      in
      Section 3.01. 

     

    ARTICLE
      IV.

     

    MISCELLANEOUS

     

    Section
      4.01 Transfer
      of Warrants.
      No
      right or interest in this Warrant shall be transferable except as provided
      in
      Article III. 

     

    Section
      4.02 Notices.
      Any
      notice or communication to be given pursuant to this Warrant shall be in writing
      and shall be delivered in person or by certified mail, return receipt requested,
      in the United States mail, postage prepaid. Notices to the Company shall be
      addressed to the Company's principal office. Notices to the Holder shall be
      addressed to the Holder's address as reflected in the records of the Company.
      Notices shall be effective upon delivery in person, or, if mailed, at midnight
      on the fifth business day after mailing.

     

    Section
      4.03 No
      Shareholder Rights.
      This
      Warrant shall not entitle the Holder to any voting rights or other rights as
      a
      shareholder of the Company.

     

    Section
      4.04 Governing
      Law.
      This
      Warrant shall be governed by and construed in accordance with the laws of the
      State of Washington.

     

    Section
      4.05 Headings;
      Interpretation.
      The
      section headings used herein are for convenience of reference only and are
      not
      intended to define, limit or describe the scope or intent of any provision
      of
      this Warrant. When used in this Warrant, the term "including" shall mean
      "including, without limitation.” 

     

    
      
        
        

      

      
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    Section
      4.06 Successors.
      The
      covenants, agreements and provisions of this Warrant shall bind the parties
      hereto and their respective successors and permitted assigns.

     

    Section
      4.07 Integrated
      Agreement; Modification.
      This
      Warrant is a complete statement of the agreement of the parties with respect
      to
      the subject matter hereof and may be modified only by written instrument
      executed by the parties.

     

    IN
      WITNESS WHEREOF, the Company has caused this Warrant to be issued effective
      as
      of the _____ day of _____, 2005.

     

    
      	 	 	 
	 	
              IsoRay,
                Inc.,
                a
                Minnesota corporation

            
	 
 	 
 	 
 
	 	By:  	 
	 	
              

              Roger
                E. Girard, CEO

            
	 	 

    

     

    
 

     

    
      
        
        

      

      
        7

        
          

        

      

      
        
        

      

    

    Exhibit
      A

     

    SUBSCRIPTION
      FORM

     

    (To
      be Executed only upon Exercise of Warrant)

     

    The
      undersigned registered owner of this Warrant irrevocably exercises this Warrant
      and purchases __________ shares of Common Stock of IsoRay, Inc., a Minnesota
      corporation, that may be issued under this Warrant and herewith delivers the
      sum
      of $____________ in full payment of the Exercise Price for such shares, all
      on
      the terms and conditions specified in this Warrant. Such shares are to be
      delivered to such holder at the address reflected in the records of the Company
      unless contrary instructions are herein given.

     

    Deliver
      certificates to:

     

     

    ________________________

    Dated: ______________________   

    __________________________________

    (Signature
      of Registered Owner)

     

    __________________________________

    (Street
      Address)

     

    __________________________________

    (City)
      (State) (Zip Code)DISTRIBUTION AGREEMENT

THIS AGREEMENT ("Agreement") is made and effective on March 7, 2006, by and
among Addison-Davis Diagnostics, Inc. ("Company") and K&E Logistics & Services
and Renco Corp. ("Distributor").

                                    RECITALS

A.    Addison-Davis Diagnostics, Inc. currently manufactures and markets drug
      screening Product(s) and desires to make its Product(s) available to the
      United States federal government via the General Services Administration
      (GSA) Federal Supply Schedule program to aid in said marketing to
      governmental agencies.

B.    K&E Logistics & Services is a company existing under the laws of the
      United States of America and the State of Kentucky.

C.    Renco Corp is a company existing under the laws of the United States of
      America and the State of Massachusetts.

D.    Renco Corp. and K&E Logistics & Services currently hold a GSA Schedule,
      GS-07F-5670R valid through February 22, 2010 and subject to renewal.

E.    In consideration of the terms herein, Distributors agree to distribute
      Company's Product(s) to the federal government via GSA Schedule
      GS-07F-5670R.

Now, therefore In consideration of the terms herein, Distributor agrees to
distribute Company's Product(s) to the federal government via GSA Schedule
GS-07F-5670R as follows:

1.    Definitions

As used herein, the following terms shall have the meanings set forth below:

A.    "Product(s)" shall mean the Company's Product(s) to be sold by
      Distributor.

B.    "Territory" shall mean the particular accounts and entities identified in
      the following:

            Appendix A. Executive Agencies

            Appendix B. Other eligible users

            Appendix C. International Organizations

            Appendix D. 1122 Program Participants

2.    Appointment

Company hereby appoints Distributor as its exclusive sales distribution channel
for the Product(s) in the Territory, and Distributor hereby accepts such
appointment. Distributor will work in a timely manner to submit all documents
required by the GSA to add Company's Product(s) to its Schedule Distributor's
sole authority shall be to solicit and accept orders for the Product(s) in the
Territory in accordance with the terms of this Agreement. Distributor shall not
have the authority to make any commitments whatsoever on behalf of Company.

<PAGE>

3.    General Duties

A.    Distributor

      1.    Distributor shall use its best efforts to amend its GSA Schedule to
            include Company's Product(s) for Company, and activate the awarded
            amended Schedule with the GSA Advantage online shopping site.

      2.    Distributor is to report in a timely manner the status of
            negotiations with the GSA. Distributor will devote adequate time and
            effort to perform its obligations.

      3.    Distributor shall determine the selling price of the Product(s) in
            the Territory (not to exceed MSRP).

      4.    Distributor will receive orders placed via the GSA Advantage online
            shopping site, and notify Company of said orders.

      5.    Distributor will receive RFQ's via the GSA Advantage e-Buy system
            and may notify Company of said RFQ's for the purposes of price
            negotiations.

      6.    Distributor will pay Company in a timely manner and according to the
            terms specified by Company for goods ordered and delivered.

B.    Company

      1.    Company shall, at its own expense, promptly provide Distributor with
            corporate information as required by GSA in the preparation of
            documents. This shall include all product information (sourcing,
            options, etc.) and graphics of the Product(s), to be used for the
            GSA Advantage upload.

      2.    Company shall make its Product(s)(s) available to Distributor at its
            "Most Favored Customer" pricing.

      3.    Company shall provide Distributor with freight costs for each order
            and shall ship all orders from Distributor within 30 days of
            receiving said orders.

4.    Sale of the Product(s)

A.    Prices and Terms of Sale. Company shall provide Distributor with copies of
      its current price lists, Each order shall be governed by the price(s) set
      by Distributor, and delivery schedules and terms and conditions applying
      to Schedule GS-07F-5670R at the time the order is accepted.

B.    Orders. All orders for the Product(s) shall be in writing.

C.    Acceptance. All orders obtained by Distributor shall be accepted by
      Company at its principal office.

D.    Invoices. Distributor shall render all invoices directly to the customers
      and shall send Purchase Orders to Company.

<PAGE>

E.    Collection. Full responsibility for collection from customers rests with
      Distributor Inquiries from Outside the Territory. Distributor shall
      promptly submit to Company, for Company's attention and handling, the
      originals of all inquiries received by Distributor from customers outside
      the Territory.

F.    Inquiries from Inside the Territory. Company shall promptly submit to
      Distributor, for Distributor's attention and handling, the originals of
      all inquiries received by Company from customers inside the Territory.

5.    Product Warranty and Product Availability
      Product Warranty. Any warranty for the Product(s) shall run directly from
      Company to the qualified end-user of the Product(s) and pursuant to the
      warranty, the qualified end-user shall return any allegedly defective
      Product(s) to Distributor. Company shall accept all allegedly defective
      Product(s) and response according to terms requested by Distributor as to
      refund, replacement, etc.

A.    Product Availability. Under no circumstances shall Company be responsible
      to Distributor or anyone else for its failure to fill accepted orders, or
      for its delay in filling accepted orders, when such failure or delay is
      due to strike, accident, labor trouble, acts of nature, freight embargo,
      war, civil disturbance, vendor problems or any cause beyond Company's
      reasonable control.

6.    Conflict of Interest

Distributor warrants to Company that it does not currently represent or promote
any lines or Product(s) that compete with the Product(s). During the term of
this Agreement, Distributor shall not represent, promote or otherwise try to
sell within the Territory any lines or Product(s) that, in Company's judgment,
compete with the Product(s) covered by this Agreement. Distributor shall provide
Company with a list of the companies and Product(s) that it currently
represents.

7.    Independent Contractor

Distributor is an independent contractor, and nothing contained in this
Agreement shall be construed to (i) give either party the power to direct and
control the day-to-day activities of the other, (ii) constitute the parties as
partners, joint ventures, co-owners or otherwise, or (iii) allow Distributor to
create or assume any obligation on behalf of Company for any purpose whatsoever.
Distributor is not an employee of Company and is not entitled to any employee
benefits. Distributor shall be responsible for paying all income taxes and other
taxes charged to Distributor on amounts earned hereunder. All financial and
other obligations associated with Distributor's business are the sole
responsibility of Distributor.

<PAGE>

8.    Indemnification

A.    Indemnification by Distributor. Distributor shall indemnify and hold
      Company free and harmless from any and all claims, damages or lawsuits
      (including reasonable attorneys' fees) arising out of negligence or
      malfeasant acts of Distributor, its employees or its agents.

B.    Indemnification by Company. Company shall indemnify and hold Distributor
      free and harmless from any and all claims, damages or lawsuits (including
      reasonable attorneys' fees) caused by Company.

9.    Term and Termination

A.    Termination for Cause. If either party defaults in the performance of any
      material obligation in this Agreement, then the non-defaulting party may
      give written notice to the defaulting party and if the default is not
      cured within 15 Business Days following such notice, the Agreement will be
      terminated.

B.    Termination for Insolvency. This Agreement shall terminate, without
      notice, (i) upon the institution by or against Distributor of insolvency,
      receivership or bankruptcy proceedings or any other proceedings for the
      settlement of Distributor's debts, (ii) upon Distributor making an
      assignment for the benefit of creditors, or (iii) upon initiation of
      dissolution proceedings of the Distributor.

10.   Confidentiality

Distributor acknowledges that by reason of its relationship to Company hereunder
it will have access to certain information and materials concerning Company's
business plans, customers, technology, and Product(s) that is confidential and
of substantial value to Company, which value would be impaired if such
information were disclosed to third parties. Distributor agrees that it shall
not use in any way for its own account or the account of any third party, nor
disclose to any third party, any such confidential information revealed to it by
Company. Company shall advise Distributor whether or not it considers any
particular information or materials to be confidential. Distributor shall not
publish any technical description of the Product(s) beyond the description
published by Company. In the event of termination of this Agreement, there shall
be no use or disclosure by Distributor of any confidential information of
Company.

11.  Governing Law, Arbitration and Legal Fees

A.   This Agreement shall be governed by and construed according to the laws of
     the State of Kentucky.

B.   The parties agree that they will use their best efforts to amicably resolve
     any dispute arising out of or relating to this Agreement. Any dispute that
     cannot be resolved amicably shall be settled by final binding arbitration
     in accordance with the rules of the American Arbitration Association and
     judgment upon the award rendered by the arbitrator or arbitrators may be
     entered in any court having jurisdiction thereof. Any such arbitration
     shall be conducted in Campbell County, or such other place as may be
     mutually agreed upon by the parties. Within fifteen (15) days after the
     commencement of the arbitration, each party shall select one person to act
     as arbitrator, and the two arbitrators so selected shall select a third
     arbitrator within ten (10) days of their appointment. Each party shall bear
     its own costs and expenses and an equal share of the arbitrator's expenses
     and administrative fees of arbitration.

<PAGE>

C.   The prevailing party in any legal action brought by one party against the
     other and arising out of this Agreement shall be entitled, in addition to
     any other rights and remedies it may have, to reimbursement for its
     expenses, including court costs and reasonable attorneys' fees.

12.   Entire Agreement

This Agreement sets forth the entire agreement and understanding of the parties
relating to the subject matter herein and supersedes any prior discussions or
agreements between them. No modification of or amendment to this Agreement, nor
any waiver of any rights under this Agreement, shall be effective unless in
writing and signed by both parties.

13.   Notices

Any notices required or permitted by this Agreement shall be deemed given if
sent by certified mail, postage prepaid, return receipt requested or by
recognized overnight delivery service:

If to Company:

         Addison-Davis Diagnostics, Inc.
         ATTN:  Fred De Luca
         143 Triunfo Canyon Road
         Suite 104
         Westlake Village, CA  91361

If to Distributor:

         K&E Logistics & Services
         569 Rossford Avenue
         Fort Thomas, KY 41075

         Renco Corp.
         5 Beaver Dam Road
         Manchester, MA  01944

14.   Non-Assignability and Binding Effect

A mutually agreed consideration for Company's entering into this Agreement is
the reputation, business standing, and goodwill already honored and enjoyed by
Distributor under its present ownership, and accordingly, Distributor agrees
that its rights and obligations under this Agreement may not be transferred or
assigned directly or indirectly. Subject to the foregoing, this Agreement shall
be binding upon and inure to the benefit of the parties hereto, their successors
and assigns.

15.   Severability

If any provision of this Agreement is held to be invalid by a court of competent
jurisdiction, then the remaining provisions shall nevertheless remain in full
force and effect. 16. Headings Headings used in this Agreement are provided for
convenience only and shall not be used to construe meaning or intent.

<PAGE>

16.   Headings

Headings used in this Agreement are provided for convenience only and shall not
be used to construe meaning or intent.

IN WITNESS WHEREOF, the parties hereto have executed this Agreement as of the
day and year first above written.

  Addison-Davis Diagnostics, Inc.               K&E Logistics & Services
-------------------------------------         ----------------------------------

/s/ Charles Miseroy                           /s/ Kurt Wuerfel
-------------------------------------         ----------------------------------
Signature                                     Signature

-------------------------------------         ----------------------------------
Charles Miseroy                               Kurt Wuerfel

-------------------------------------         ----------------------------------
*Title                                        President

March 7, 2006                                 March 7, 2006
-------------------------------------         ----------------------------------
Date                                          Date

  Renco Corp.
-------------------------------------

/s/ Richard Renehan
-------------------------------------
Signature

-------------------------------------
Richard Renehan

-------------------------------------
President

March 7, 2006
-------------------------------------
Date

<PAGE>

                        Appendix A. 1 Executive Agencies
The following have been determined to be "executive agencies," or parts thereof,
for the purpose of using GSA sources of supply and services. This list is not
all-inclusive; other activities also may be eligible to use GSA sources, and GSA
will rule on a case-by-case basis in response to requests received. Listed here
are major Federal activities and their subordinate entities about which
inquiries have been received.

1.       African Development Foundation
2.       Agency for International Development
3.       Agriculture, Department of
4.       Air Force, Department of
5.       American Battle Monuments Commission
6.       Armed Forces Retirement Home
7.       Army Corp of Engineers
8.       Army, Department of
9.       Bonneville Power Administration
10.      Bureau of Land Management
11.      Central Intelligence Agency
12.      Christopher Columbus Fellowship Foundation
13.      Commerce, Department of
14.      Commission on Civil Rights
15.      Commission on Fine Arts
16.      Commodity Credit Corporation
17.      Commodity Futures Trading Commission
18.      Consumer Product(s) Safety Commission
19.      Corporation for National Community Service
20.      Defense, Department of
21.      Defense agencies and Joint Service Schools
22.      Defense Nuclear Facilities Safety Board
23.      Education, Department of
24.      Energy, Department of
25.      Environmental Protection Agency
26.      Equal Employment Opportunity Commission
27.      Executive Office of the President
28.      Export-Import Bank of U.S.
29.      Farm Credit Administration
30.      Federal Communications Commission
31.      Federal Election Commission
32.      Federal Maritime Commission
33.      Federal Trade Commission
34.      Forest Service, U.S.
35.      General Services Administration
36.      Government National Mortgage Association
37.      Harry S. Truman Scholarship Foundation
38.      Health and Human Services, Department of
39.      Housing and Urban Development, Department of
40.      Institute of Museum and Library Sciences
41.      Interagency Council on the Homeless
42.      Inter-American Foundation
43.      Interior, Department of the
44.      International Boundary and Water Commission, United States Section
45.      Justice, Department of
46.      Kennedy Center
47.      Labor, Department of
48.      Madison, James, Memorial Fellowship Foundation

<PAGE>

49.      Merit Systems Protection Board
50.      Morris K. Udall Foundation
51.      National Aeronautics and Space Administration
52.      National Archives and Records Administration
53.      National Credit Union Administration (not individual credit unions)
54.      National Council on the Handicapped
55.      National Endowment for the Arts
56.      National Endowment for the Humanities
57.      National Labor Relations Board
58.      National Science Foundation
59.      National Transportation Safety Board
60.      Navy, Department of
61.      Nuclear Regulatory Commission
62.      Nuclear Waste Technical Review Board
63.      Occupational Safety and Health Review Commission
64.      Office of Federal Housing Enterprise Oversight
65.      Office of Personnel Management
66.      Office of Special Counsel
67.      Panama Canal Commission
68.      Peace Corps
69.      Pension Benefit Guaranty Corporation
70.      Postal Rate Commission
71.      Presidio Trust, the
72.      Railroad Retirement Board
73.      St. Elizabeths Hospital
74.      Securities and Exchange Commission
75.      Selective Service System
76.      Small Business Administration
77.      Smithsonian Institution
78.      State, Department of
79.      Tennessee Valley Authority
80.      Trade and Development Agency
81.      Transportation, Department of
82.      Treasury, Department of
83.      U.S. Arms Control and Disarmament Agency
84.      U.S. Information Agency
85.      U.S. International Development Cooperation Agency
86.      U.S. International Trade Commission
87.      U.S. Postal Service
88.      Veterans Affairs, Department of

<PAGE>

                       Appendix B. 1 Other eligible users
The following have been determined to be eligible to use GSA sources of supply
and services, in addition to the organizations listed in appendixes A and C. An
asterisk indicates that special limitations apply. This list is not
all-inclusive; other activities also may be eligible to use GSA sources. GSA
will rule upon eligibility on a case-by-case basis in response to requests
received.

1.    Administrative Conference of the U.S.
2.    Administrative Office of the U.S. Courts
3.    Advisory Commission on Intergovernmental Relations
4.    Advisory Committee on Federal Pay
5.    American Printing House for the Blind
6.    American Samoa, government of
7.    Architect of the Capitol
8.    Architectural and Transportation Barriers Compliance Board
9.    Bank for Cooperatives
10.   Certain non-appropriated fund activities (generally, not for resale)
11.   Coast Guard Auxiliary (through the U.S. Coast Guard)
12.   Committee for Purchase from the Blind and other Severely Handicapped
13.   Contractors and subcontractors - cost reimbursement (as authorized by the
      applicable agency's contracting official)
14.   Contractors and subcontractors - fixed price (security equipment only when
      so authorized by the applicable agency's contracting official)
15.   Courts, Federal (not court reporters)
16.   Delaware River Basin Commission
17.   District of Columbia, Government of
18.   Farm Credit Banks
19.   Federal Deposit Insurance Corporation
20.   Federal Home Loan Banks
21.   Federal Intermediate Credit Bank
22.   Federal Land Bank
23.   Federal Reserve Board of Governors
24.   Firefighters, Non-Federal (as authorized by the Forest Service, U.S.
      Department of Agriculture)
25.   Gallaudet University
26.   Government Printing Office
27.   Guam, government of
28.   Harry S. Truman Scholarship Foundation
29.   House of Distributors, U.S.
30.   Howard University (including hospital)
31.   Japan-United States Friendship Commission
32.   Land Grant Institutions*
33.   Legal Services Corporation (not its grantees)
34.   Library of Congress
35.   Marine Mammal Commission
36.   Medicare Payment Advisory Commission
37.   National Bank for Cooperatives (CoBank)
38.   National Capital Planning Commission
39.   National Gallery of Art
40.   National Guard Activities (only through U.S. Property and Fiscal Officers)
41.   National Technical Institute for the Deaf
42.   Navajo and Hopi Indian Relocation Commission
43.   Neighborhood Reinvestment Corporation
44.   Northern Mariana Islands, Commonwealth, government of
45.   Senate, U.S.

<PAGE>

46.   Stennis, John C., Center for Public Service Training and Development
47.   Susquehanna River Basin Commission
48.   U.S. Institute of Peace
49.   U.S. Distributor, Office of Joint Economic Commission
50.   Virgin Islands, government of (includingVirgin Islands Port Authority)
51.   Washington Metropolitan Area Transit Authority (METRO)

* as cost-reimbursement contractors.

<PAGE>

                    Appendix C. 1 International Organizations
The following have been determined to be eligible to use GSA sources of supply
and services, in addition to the organizations listed in appendixes A and B.
This list is not all-inclusive; other activities may also be eligible to use GSA
sources. Also, as stated in par. 7e.(3), certain entities may be eligible to use
only specific GSA sources and/or services. GSA will rule upon the eligibility of
activities on a case-by-case basis in response to requests received.

1.    African Development Fund
2.    American Red Cross
3.    Asian Development Bank
4.    Caribbean Organization
5.    Counterpart Foundation, Inc.
6.    Customs Cooperation Council
7.    European Space Research Organization
8.    Food and Agriculture Organization of the United Nations
9.    Great Lakes Fishery Commission
10.   Inter-American Defense Board
11.   Inter-American Development Bank
12.   Inter-American Institute of Agriculture Sciences
13.   Inter-American Investment Corporation
14.   Inter-American Statistical Institute
15.   Inter-American Tropical Tuna Commission
16.   Intergovernmental Maritime Consultive Organization
17.   Intergovernmental Committee for European Migration
18.   International Atomic Energy Agency
19.   International Bank of Reconstruction and Development (WORLD BANK)
20.   International Boundary Commission-United States and Canada
21.   International Boundary and Water Commission-United States and Mexico
22.   International Center for Settlement of Investment Disputes
23.   International Civil Aviation Organization
24.   International Coffee Organization
25.   International Cotton Advisory Committee
26.   International Development Association
27.   International Fertilizer Development Center
28.   International Finance Corporation
29.   International Hydrographic Bureau
30.   International Institute for Cotton
31.   International Joint Commission-United States and Canada
32.   International Labor Organization
33.   International Maritime Satellite Organization
34.   International Monetary Fund
35.   International Pacific Halibut Commission
36.   International Pacific Salmon Fisheries Commission-Canada
37.   International Secretariat for Volunteer Services
38.   International Telecommunications Satellite Organization
39.   International Telecommunications Union
40.   International Wheat Council
41.   Lake Ontario Claims Tribunal
42.   Multinational Force and Observers
43.   Multinational Investment Guarantee Agency (MIGA)
44.   North American Treaty Organization (NATO)
45.   Organization of African Unity
46.   Organization of American States

<PAGE>

47.   Organization for Economic Cooperation and Development
48.   Pan American Health Organization
49.   Radio Technical Commission for Aeronautics
50.   South Pacific Commission
51.   United International Bureau for the Protection of Intellectual Property
52.   United Nations
53.   United Nations Educational, Scientific, and Cultural Organization
54.   Universal Postal Union
55.   World Health Organization
56.   World Intellectual Property Organization
57.   World Meteorological Organization
58.   World Tourism Organization

<PAGE>

                      Appendix D. 1122 Program Participants
The 1122 Program of the FY 1994 National Defense Authorization Act authorizes
state and local governments to purchase law enforcement equipment suitable for
counter-drug activities through the federal government. The 1122 program allows
state and local governments the opportunity to take advantage of the discounts
available to the Federal Government due to its large volume purchases.

Each state participating in the 1122 Program designates a State Point of Contact
(SPOC) to administer the state's activities under the program, by validating the
counter-drug mission of each procurement request, and ensuring the availability
of funds.

Because the Company's Product(s) fall directly in this scope, any and all
inquiries or Purchase Orders received by Company from any state or local
government entity must be submitted to the Distributor for review as to their
1122 Program eligibility.

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