LOCK-UP
      AGREEMENT

     

    THIS
      AGREEMENT (this “Agreement”)
      is
      dated as of May ___, 2007 by and among National Realty & Mortgage, Inc., a
      Nevada corporation (the “Company”),
      and
      Rise Elite International Limited, a British Virgin Islands company
      (“Shareholder”).

     

    WHEREAS,
      the Company intends to enter into a share exchange transaction with Shareholder
      whereby Shareholder will exchange all its equity interest in World Through
      Limited, a British Virgin Islands company and a wholly-owned subsidiary of
      Shareholder, for the issuance of shares of a newly-designated Series A
      Convertible Preferred Stock of the Company, par value $0.001 per share (the
      “Series
      A Stock”)
      and a
      private placement financing transaction with certain accredited investors (the
      “Investors”)
      whereby the Company will issue shares of a newly-designated Series B Convertible
      Preferred Stock, par value $0.001 per share (the “Series
      B Stock”)
      and
      related warrants (the “Warrants”)
      to
      purchase shares of Common Stock of the Company, par value $0.001 per share
      (the
“Common
      Stock”)
      (the
“Financing
      Transaction”).

     

    WHEREAS,
      to induce the Company and the Investors to enter into the Financing Transaction
      pursuant to the Series B Convertible Preferred Stock Purchase Agreement dated
      May ____, 2007 by and among the Company and the Investors (the “Purchase
      Agreement”),
      Shareholder has agreed not to sell any shares of the Company’s Series A Stock or
      any Common Stock issuable upon conversion of the Series A Stock that Shareholder
      presently owns or may acquire after the date hereof, except in accordance with
      the terms and conditions set forth herein (collectively, the “Lock-Up
      Shares”).
      Capitalized terms used herein without definition shall have the meanings
      assigned to such terms in the Purchase Agreement.

     

    NOW,
      THEREFORE, in consideration of the covenants and conditions hereinafter
      contained, the parties hereto agree as follows:

     

    1.  Restriction
      on Transfer; Term.
      Each of
      the Shareholder hereby agrees with the Company that such Shareholder will not
      offer, sell, contract to sell, assign, transfer, hypothecate, pledge or grant
      a
      security interest in, or otherwise dispose of, or enter into any transaction
      which is designed to, or might reasonably be expected to, result in the
      disposition of (whether by actual disposition or effective economic disposition
      due to cash settlement or otherwise, directly or indirectly (each, a
“transfer”), any of the shares of Common Stock or Preferred Shares owned by such
      Shareholder at any time from the period commencing on the Closing Date and
      expiring on the date that is eighteen (18) months following the effective date
      of the initial registration statement (the “Effective
      Date”)
      filed
      by the Company with the Securities and Exchange Commission providing for the
      resale of the shares of Common Stock issuable upon conversion of the Preferred
      Shares issued pursuant to the Purchase Agreement (the “Period”),
      each
      Shareholder agrees that, during the twenty four (24) months immediately
      following the Period that such Shareholder shall not transfer more than one
      twelfth (1/12) of such Shareholder’s total holdings of Common Stock or Preferred
      Shares during any one (1) month. 

     

    
      
        
        

      

      
         

        
          

        

      

      
        
        

      

    

     

    2.  Ownership.
      During
      the Period, Shareholder shall retain all rights of ownership in the Lock-Up
      Shares, including, without limitation, voting rights and the right to receive
      any dividends, if any, that may be declared in respect thereof.

     

    3.  Company
      and Transfer Agent.
      The
      Company is hereby authorized to disclose the existence of this Agreement to
      its
      transfer agent. The Company and its transfer agent are hereby authorized to
      decline to make any transfer of the Common Stock if such transfer would
      constitute a violation or breach of this Agreement and/or the Purchase
      Agreement.

     

    4.  Notices.
      All
      notices, demands, consents, requests, instructions and other communications
      to
      be given or delivered or permitted under or by reason of the provisions of
      this
      Agreement or in connection with the transactions contemplated hereby shall
      be in
      writing and shall be deemed to be delivered and received by the intended
      recipient as follows: (i) if personally delivered, on the business day of such
      delivery (as evidenced by the receipt of the personal delivery service), (ii)
      if
      mailed certified or registered mail return receipt requested, four (4) business
      days after being mailed, (iii) if delivered by overnight courier (with all
      charges having been prepaid), on the business day of such delivery (as evidenced
      by the receipt of the overnight courier service of recognized standing), or
      (iv)
      if delivered by facsimile transmission, on the business day of such delivery
      if
      sent by 6:00 p.m. in the time zone of the recipient, or if sent after that
      time,
      on the next succeeding business day (as evidenced by the printed confirmation
      of
      delivery generated by the sending party’s telecopier machine). If any notice,
      demand, consent, request, instruction or other communication cannot be delivered
      because of a changed address of which no notice was given (in accordance with
      this Section 4), or the refusal to accept same, the notice, demand, consent,
      request, instruction or other communication shall be deemed received on the
      second business day the notice is sent (as evidenced by a sworn affidavit of
      the
      sender). All such notices, demands, consents, requests, instructions and other
      communications will be sent to the following addresses or facsimile numbers
      as
      applicable.

     

    


    
      	
              If
                to the Company: 

               

              National
                Realty and Mortgage, Inc.

              c/o
                Daqing Sunway Technology Co., Ltd.

              Daqing
                Hi-Tech Industry Development Zone

              Daqing,
                Helongjiang, Post Code 163316

              People’s
                Republic of China

              Attention:
                Dr. David Wang, Chie Financial Officer

              Tel:      
                 86-459-6046043

              Fax:  
86-459-6046004

              Email:   
                abc1869@163.com

               

              with
                copies (which copies shall not constitute notice to the Issuer)
                to: 

               

              Guzov
                Ofsink, LLC

              600
                Madison Avenue, 14th Floor

              New
                York, New York 10022

              Attention:
                Darren Ofsink

              Tel.
                No.: (212) 371-8008, ext. 127

              Fax
                No.: (212) 688-7273

            


    

     

    
      
        
        

      

      
        2

        
          

        

      

      
        
        

      

    

    
      	 

              And
                to: 

               

              Loeb
                & Loeb LLP

              345
                Park Avenue

              New
                York, NY 10154

              Attn:
                Mitchell Nussbaum

              Facsimile:
                212-407-4000 

              email:
                mnussbaum@loeb.com

               

              If
                to Shareholder, 

               

              Rise
                Elite International Limited

              c/o
                Daqing Sunway Technology Co., Ltd.

              Daqing
                Hi-Tech Industry Development Zone

              Daqing,
                Helongjiang, Post Code 163316

              People’s
                Republic of China

              Attention:
                Dr. David Wang, Chief Financial Officer

              Tel:      
                86-459-6046043

              Fax:     
                86-459-6046004

              Email:  
                abc1869@163.com

            


    

     

    or
      to
      such other address as any party may specify by notice given to the other party
      in accordance with this Section 4.

     

    5.  Amendment.
      This
      Agreement may not be modified, amended, altered or supplemented, except by
      a
      written agreement executed by each of the parties hereto.

     

    6.  Entire
      Agreement.
      This
      Agreement contain the entire understanding and agreement of the parties relating
      to the subject matter hereof and supersedes all prior and/or contemporaneous
      understandings and agreements of any kind and nature (whether written or oral)
      among the parties with respect to such subject matter, all of which are merged
      herein.

     

    7.  Governing
      Law.
      This
      Agreement shall be governed by and construed in accordance with the laws of
      the
      State of New York applicable to agreements made and to be performed in that
      state, without regard to any of its principles of conflicts of laws or other
      laws which would result in the application of the laws of another jurisdiction.
      This Agreement shall be construed and interpreted without regard to any
      presumption against the party causing this Agreement to be drafted.

     

    
      
        
        

      

      
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    8.  Waiver
      of Jury Trial.
      EACH OF
      THE PARTIES HEREBY UNCONDITIONALLY AND IRREVOCABLY WAIVES THE RIGHT TO A TRIAL
      BY JURY IN ANY ACTION, SUIT OR PROCEEDING ARISING OUT OF OR RELATING TO THIS
      AGREEMENT OR THE TRANSACTIONS CONTEMPLATED HEREBY. EACH OF THE PARTIES
      UNCONDITIONALLY AND IRREVOCABLY CONSENTS TO THE EXCLUSIVE JURISDICTION OF THE
      COURTS OF THE STATE OF NEW YORK LOCATED IN NEW YORK COUNTY AND THE FEDERAL
      DISTRICT COURT FOR THE SOUTHERN DISTRICT OF NEW YORK WITH RESPECT TO ANY SUIT,
      ACTION OR PROCEEDING ARISING OUT OF OR RELATING TO THIS AGREEMENT OR THE
      TRANSACTIONS CONTEMPLATED HEREBY, AND EACH OF THE PARTIES HEREBY UNCONDITIONALLY
      AND IRREVOCABLY WAIVES ANY OBJECTION TO VENUE IN NEW YORK COUNTY OR SUCH
      DISTRICT, AND AGREES THAT SERVICE OF ANY SUMMONS, COMPLAINT, NOTICE OR OTHER
      PROCESS RELATING TO SUCH SUIT, ACTION OR OTHER PROCEEDING MAY BE EFFECTED IN
      THE
      MANNER PROVIDED IN SECTION 4.

     

    9.  Severability.
      The
      parties agree that if any provision of this Agreement be held to be invalid,
      illegal or unenforceable in any jurisdiction, that holding shall be effective
      only to the extent of such invalidity, illegally or unenforceability without
      invalidating or rendering illegal or unenforceable the remaining provisions
      hereof, and any such invalidity, illegally or unenforceability in any
      jurisdiction shall not invalidate or render unenforceable such provision in
      any
      other jurisdiction. It is the intent of the parties that this Agreement be
      fully
      enforced to the fullest extent permitted by applicable law.

     

    10.  Binding
      Effect; Assignment.
      This
      Agreement and the rights and obligations hereunder may not be assigned by any
      party hereto without the prior written consent of the other parties hereby.
      This
      Agreement shall be binding upon and shall inure to the benefit of the parties
      hereto and their respective successors and permitted assigns.

     

    11.  Headings.
      The
      section headings contained in this Agreement (including, without limitation,
      section headings and headings in the exhibits and schedules) are inserted for
      reference purposes only and shall not affect in any way the meaning,
      construction or interpretation of this Agreement. Any reference to the
      masculine, feminine, or neuter gender shall be a reference to such other gender
      as is appropriate. References to the singular shall include the plural and
      vice
      versa.

     

    12.  Counterparts.
      This
      Agreement may be executed in two or more counterparts, and by the different
      parties hereto in separate counterparts, each of which when executed shall
      be
      deemed to be an original, and all of which, when taken together, shall
      constitute one and the same document. This Agreement shall become effective
      when
      one or more counterparts, taken together, shall have been executed and delivered
      by all of the parties.

     

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    Schedule
      A

     

    
      
        
        

      

      
        6