Document:

May
      23,
      2007

    

    Mr.
      Jack
      Li

    Perfectenergy
      International Limited

    479
      Youdong Road, Xinzhuang Town

    Minhang
      District, Shanghai 201100

    PRC

    

    Dear
      Mr.
      Li:

    

    We
      are
      pleased to confirm the understanding and agreement under which Knight Capital
      Markets, LLC (“KCM”)
      and
      Canaccord Adams Inc. and Canaccord Adams Ltd. (together with their affiliates,
      control persons, directors, officers, employees and control persons, “CA”)
      together (the “Placement Agents”) are engaged by Perfectenergy International
      Limited, (the “Company”)
      to act
      as exclusive advisors and placement agents in connection with the private
      placement of the Company's securities.

    

    1. Engagement.
      The
      Company hereby engages the Placement Agents as its exclusive
      advisor and placement agent in connection with the placement, on a “best
      efforts” basis, of debt, equity or equity-related securities of the Company (the
“Securities”)
      for
      gross proceeds of not less than ten
      million dollars ($10,000,000) (the
      “Minimum
      Offering”)
      nor
      more than thirty
      million dollars ($30,000,000),
      on
      terms
      mutually acceptable to the Placement Agents and the Company (the “Proposed
      Offering”).
      The
      Placement Agents hereby accept the engagement as placement agents for the
      Proposed Offering subject to, among other things, the satisfactory completion
      of
      the Placement Agent's due diligence investigation and the non-occurrence of
      any
      material adverse change in the business, prospects or financial condition of
      the
      Company, and on the terms more fully set forth in this Agreement. This Agreement
      shall not give rise to any commitment by the Placement Agents or any other
      entity to purchase any securities of the Company. The Placement Agents provide
      no guarantee that the Proposed Offering or any other financing transaction
      will
      ever be completed or, if completed, as to the terms of the Proposed Offering
      or
      such other transaction. The Placement Agents shall serve as exclusive advisors
      and placement agents for the Proposed Offering for a period of one
      (1) year from
      the
      date of this Agreement (the “Exclusivity
      Period”).
      During
      the Exclusivity Period, the Company will not sell or issue any securities (other
      than in connection with the exercise of employee stock options outstanding
      on
      the date of this Agreement or other than in connection with the grant of
      employee stock options to employees hired during the Exclusivity Period),
      without the consent of the Placement Agents, which consent shall not be
      unreasonably withheld, conditioned, or delayed. 

     

    2.
       Services.
      As
      placement agents for the Proposed Offering, the Placement Agents shall,
      to
      the extent required or appropriate in connection with the Proposed Offering,
      

     

    (a)
      advise the Company on the structure and the terms of the Proposed Offering;
      

     

    (b)
      assist the Company in preparing the investment documents and/or private
      placement memorandum used in the Proposed Offering; 

     

    (
      c)
      contact potential investors who might participate in the Proposed Offering,
      coordinate follow-up activities with potential investors, and in general
      supervise the investment consideration and placement process; and 

     

    (d)
      assist the Company in negotiating the terms of the Proposed Offering.

     

    
      
        
        

      

      
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    3.
       Compensation
      and Expenses.
      

     

    (a)
      For
      acting as advisor to the Company in connection with the Proposed Offering,
      the
      Placement Agents shall be entitled to receive, and the Company shall pay to
      the
      Placement Agents (or its designee(s)), the following (collectively, the
“Advisor's
      Compensation”): The
      Advisor's Compensation shall be allocated 100% to KCM. 

     

    (i)
      an“Advisor's
      Cash Fee” of
      one
      percent (1%)
      of the
      gross proceeds of the Proposed Offering (including any capital received upon
      the
      exercise, exchange, or conversion of derivative Securities that may be included
      in the Proposed Offering), to be paid at the closing(s) of the Proposed Offering
      (or, with respect to such derivative Securities, upon such exercises, exchanges,
      or conversions); and 

     

    (ii)
      an
“Advisor's
      Warrant” to
      purchase that number of shares of common stock of the Company equal to the
      aggregate of (A) one
      percent (1%)
      of the
      shares of common stock sold in the Proposed Offering at a per share exercise
      price equal to the per share price of such shares in the Proposed Offering,
      and
      (B) to the extent the Securities are not common stock, one
      percent (1%)
      of the
      shares of common stock acquirable upon exercise, exchange, or conversion of
      such
      Securities at a per share exercise price equal to the minimum per share price
      payable by an investor in the Proposed Offering in order to acquire such share.
      A Placement Warrant shall be issued at the initial closing and at each
      subsequent closing based on the number of Securities sold at each such closing.
      The terms of the Placement Warrant shall be set forth in the form of Placement
      Warrant provided to the Company prior to the first closing of the Proposed
      Offering (but, at a minimum, the Placement Warrant shall be exercisable from
      time to time, in whole or in part, during the
      three (3) year period
      commencing on the initial closing of the Proposed Offering, and shall contain
      the right to be included in any registration statement that the Company
      subsequently files with the SEC (commonly known as “piggy-back” registration
      rights), anti-dilution and cashless exercise provisions satisfactory to the
      Placement Agents and their counsel). 

     

    (b)
      For
      acting as placement agent in connection with the Proposed Offering, the
      Placement Agents shall be entitled to receive, and the Company shall pay to
      the
      Placement Agents (or their designee(s)), the following (collectively, the
“Placement
      Agent's Compensation”).
      The
      Placement Agent's Compensation shall be allocated 60% to CA and 40% to KCM.
      

     

    (i)
      a
“Placement
      Agent's Cash Fee” of
      seven
      percent (7%)
      of the
      gross proceeds of the Proposed Offering (including any capital received upon
      the
      exercise, exchange, or conversion of derivative Securities that may be included
      in the Proposed Offering), to be paid at the closing(s) of the Proposed Offering
      (or, with respect to such derivative Securities, upon such exercises, exchanges,
      or conversions); 

     

    (ii)
      a
“Placement
      Agent's Warrant” to
      purchase that number of shares of common stock of the Company equal to the
      aggregate of (A) six
      percent (6%)
      of the
      shares of common stock sold in the Proposed Offering at a per share exercise
      price equal to the per share price of such shares in the Proposed Offering,
      and
      (B) to the extent the Securities are not common stock, six
      percent (6%)
      of the
      shares of common stock acquirable upon exercise, exchange, or conversion of
      such
      Securities at a per share exercise price equal to the minimum per share price
      payable by an investor in the Proposed Offering in order to acquire such share.
      

    A
      Placement Warrant shall be issued at the initial closing and at each subsequent
      closing based on the number of Securities sold at each such closing. The terms
      of the Placement Warrant shall be set forth in the form of Placement Warrant
      provided to the Company prior to the first closing of the Proposed Offering
      (but, at a minimum, the Placement Warrant shall be exercisable from time to
      time, in whole or in part, during the three (3) year period commencing on the
      initial closing of the Proposed Offering, and shall contain the right to be
      included in any registration statement that the Company subsequently files
      with
      the SEC (commonly known as “piggy-back” registration rights), anti-dilution and
      cashless exercise provisions satisfactory to the Placement Agents and their
      counsel); and 

     

    
      
        
        

      

      
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    (iii)
      a
      check in the amount of thirty
      thousand dollars ($30,000),
      as
      a
      non-refundable non-accountable expense allowance to the Placement Agents, which
      shall be delivered to the Placement Agents upon the Company receipt of any
      funds
      related to the merger agreement with Crestview Development Corp. and upon the
      signing of this Agreement. 

     

    (c)
      Whether or not the Proposed Offering is consummated, the Company shall reimburse
      the Placement Agents for all of their “Approved Out-of-Pocket Costs and
      Expenses” incurred in connection with the services hereunder, including, but not
      limited to, fees and expenses of its legal counsel (including “blue sky” related
      legal and filing fees as provided in Section 8 hereof) and other professional
      advisors, travel expenses, data gathering and due diligence expenses, document
      reproduction and shipping expenses, the expenses related to meals or other
      expenses of meeting with potential investors or others, tombstone preparation
      expenses, and other placement related expenses. The foregoing costs and expenses
      will be paid by the Company to the Placement Agents promptly upon receipt by
      the
      Company of each invoice from the Placement Agents relating thereto setting
      forth
      in reasonable detail the items requiring reimbursement or payment, along with
      reasonable proofs of the same. 

     

    4.
       Tail.
      In
      addition to the Compensation payable to the Placement Agents in connection
      with the Proposed Offering, the Placement Agents will be entitled to receive,
      and the Company shall pay to the Placement Agents, compensation in connection
      with any other financing transaction consummated by the Company during the
      twelve (12) month period after the expiration of the Exclusivity Period, which
      financing is not the subject of a separate engagement letter with the Placement
      Agents and is provided by (a) investors or parties introduced to the Company
      by
      the Placement Agents during the Exclusivity Period, or investors or parties
      with
      whom discussions concerning the Company or the Proposed Offering take place
      during the Exclusivity Period between or among the Placement Agents or the
      Company on the one hand and such investor or party on the other; (b) investors
      or parties introduced to the Company by an investor or party originally
      introduced to the Company by the Placement Agents; or ( c) investors or parties
      who seek the advice, counselor assistance of the Placement Agents in connection
      with such transaction (any of the foregoing in (a) through (c) inclusive herein
      referred to as a “Placement
      Agent Investor”).
      The
      compensation payable to the Placement Agents under this Section 4 with respect
      to such other financing transaction shall be determined in accordance with
      Section 3 herein, (with each reference therein to “Proposed Offering” being
      deemed to refer to such other financing transaction). Should the Company propose
      to accept economic resources in a strategic transaction (i.e.,
      not
      one occurring on a daily, weekly, monthly or other similar regular basis in the
      ordinary course of business) effected with a Placement Agent Investor, then
      it
      agrees to compensate the Placement Agents for such transaction as closely as
      practical to what is called for herein for a transaction of comparable economic
      value. Promptly following the Exclusivity Period, the Placements Agents will
      provide the Company with written notice of all Placement Agent Investors with
      which discussions regarding the Proposed Offering were held during the
      Exclusivity Period. 

     

    5.
       Cooperation.
      The
      Company shall cooperate with the Placement Agents in connection
      with the performance of its due diligence related to its engagement hereunder
      and shall make available to the Placement Agents the Company's management,
      employees, directors, accountants, counsel and other outside advisors,
      consultants, service providers, vendors and customers and such documents, books,
      records, studies and other information as it shall reasonably request in this
      respect. The Placement Agents' willingness to proceed with the proposed
      transaction is subject to satisfactory results of its on-going due diligence.
      

     

    
      
        
        

      

      
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    6.
       Negotiation;
      PPM.
      It is
      contemplated that the Placements Agents shall negotiate the
      terms
      of the Proposed Offering with a limited number of investors which shall, if
      the
      Company approves, be memorialized in a stock purchase agreement containing
      all
      customary and necessary representations, warranties, disclosures and other
      Company information. If, however, the Placement Agents decides in its sole
      and
      absolute discretion, to broaden its selling efforts to include solicitation
      of
      additional investors, the Proposed Offering shall commence immediately upon
      the
      Company's finalization, in conjunction with the Placement Agents, of a private
      placement memorandum (the “PPM”),
      subscription documents and other necessary materials. Such PPM and related
      documentation (collectively, the “Offering
      Materials”)
      initially shall be drafted by the Company and include all customary and
      necessary representations, warranties, disclosures and other Company information
      and shall include audited financial statements of the Company. The Company
      shall
      represent and warrant in writing to the Placement Agents that all such
      representations and warranties are true, complete and correct, and that the
      Offering Materials do not contain any untrue statement of a material fact or
      omit to state a material fact necessary to be stated therein in order to make
      the information presented not misleading. The Company shall be responsible
      for
      amending or supplementing the Offering Materials as necessary to correct any
      untrue statement of a material fact or any omission to state a material fact
      necessary to make the statements therein not misleading. The Company will not
      use any Offering Materials to which the Placement Agents reasonably object.
      

     

    7.
       Offering
      to Prospective Investors: Compliance with Securities Laws.
      The
      Company reserves the right to reject an investment from any prospective
      investor. The Company and the Placement Agents each agrees to conduct the
      Proposed Offering in a manner intended to qualify for the exemption from the
      registration requirements of Section 5 of the Securities Act of 1933, as amended
      (the “Act”)
      provided by Section 4(2) of the Act and/or Regulation D promulgated thereunder.
      The Company agrees that the Proposed Offering is to be limited to “Accredited
      Investors” as such defined is defined in Regulation D; therefore the Company and
      the Placement Agents each agrees to limit offers to sell, and solicitations
      of
      offers to buy, Securities to persons reasonably believed by it to be “Accredited
      Investors” as so defined. The Company and the Placement Agents each agrees to
      conduct the Proposed Offering in a manner intended to comply with the
      registration or qualification requirements, or available exemptions therefrom,
      of applicable state “bluesky” laws and applicable securities laws of other
      relevant jurisdictions. The Placement Agents will be responsible, at the expense
      of the Company, for registering or qualifying the offer and sale of the
      Securities under applicable state “blue sky” laws, or securing exemptions from
      such registration or qualification requirements, and the Company will cooperate
      with the Placement Agents in connection therewith. The Company will not, for
      a
      period of six months following the last closing date of the Proposed Offering,
      offer for sale or sell any securities unless, in the opinion of counsel to
      the
      Company, reviewed by counsel to the Placement Agents, who advise the Placement
      Agents that it may rely thereupon, such offering will not cause the issuance
      of
      the Securities in the Proposed Offering to be subject to the registration or
      qualification requirements of applicable federal securities laws, state “blue
      sky” laws or the securities laws of any other jurisdiction (by integration with
      any other offering of securities or otherwise). 

     

    8.
       Indemnification.
      The
      Company shall indemnify and hold harmless the Placement Agents
      in
      accordance with the indemnification agreement (a copy of which is attached
      hereto and is incorporate by reference herein), which shall be executed by
      the
      Company concurrently herewith. 

     

    
      
        
        

      

      
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    9.
       No
      Brokers.
      The
      Company represents and warrants to the Placement Agents that there
      are
      no brokers, representatives or other persons, (other than any sub-agents engaged
      by the Placement Agents), who have an interest in the compensation payable
      to
      the Placement Agents pursuant to the terms of this Agreement. The Placement
      Agents agree to pay any sub-agents engaged by or retained by the Placement
      Agents in connection with this Agreement and to hold the Company harmless
      against any such claims. 

     

    10.
       Successors
      and Assigns: Binding Effect.
      The
      benefits of this Agreement shall, together with the separate indemnity
      agreement, inure to the benefit of the respective successors and assigns of
      the
      parties hereto and of the indemnified parties hereunder and their successors
      and
      assigns and representatives, and the obligations and liabilities assumed in
      this
      Agreement by the parties hereto shall be binding upon their respective
      successors and assigns. Neither the Company on the one hand, nor the Placement
      Agents on the other hand, shall assign its interest in this Agreement without
      the prior written consent of the other party, which consent shall not be
      unreasonably withheld. The Company acknowledges that in rendering its services
      hereunder, the Placement Agents will be using and relying on the information
      provided to it by the Company and does not assume responsibility for the
      accuracy or completeness of any such information. 

     

    11.  Confidentiality.
      

     

    (a)
      Except as contemplated by the terms of this Agreement or as may be required
      by
      law or order of applicable regulatory authority (including the National
      Association of Securities Dealers Regulation, Inc.), the Placement Agents shall
      keep confidential and shall not disclose to any third party any confidential
      or
      proprietary information of the Company made available to it in connection with
      its engagement hereunder. Any information that is confidential or proprietary
      shall be identified as such to the Placement Agents by the Company, either
      in
      writing or orally (and then confirmed as such in writing), at the time such
      information is disclosed by the Company to the Placement Agents. The Placement
      Agents will use such confidential information only in connection with its
      engagement hereunder; provided, however, such confidentiality obligation shall
      not extend to (i) any information available to or in the possession of the
      Placement Agents prior to the date of its disclosure to the Placement Agents
      by
      or on behalf of the Company, (ii) any information generally available to the
      public, or (iii) any information which becomes available to the Placement Agents
      on a non-confidential basis from a third party who is not bound by a
      confidentiality obligation to the Company; and provided, further, such
      confidential information may be disclosed to the Placement Agents' officers,
      directors, employees, consultants, agents, advisors or representatives in
      connection with the engagement hereunder provided that such persons are made
      aware of the obligations under this Section 12. 

     

    (b)
      Any
      written or oral advice, analyses or reports provided by the Placement Agents
      to
      the Company in connection with its engagement hereunder are exclusively for
      the
      information of the Board of Directors and management of the Company (including
      the Company's attorneys, accountants and other professional advisors) and may
      not be disclosed (in any form whatsoever) to or relied upon by any other party
      without the express prior written consent of the Placement Agents. Any
      description of or reference to the Placement Agents in the Offering Materials
      must be approved by the Placement Agents in writing prior to use, which approval
      will not be unreasonably withheld. 

     

    
      
        
        

      

      
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    12.
       Closing
      Matters.
      The
      Company will, at the closing of the Proposed Offering, provide
      the Placement Agents with a copy of the same favorable opinion of its counsel
      as
      is furnished to the investors participating in such closing (if such an opinion
      is provided as part of the transaction). In addition,
      at the closing, the Company will provide the Placement Agents and participating
      investors with certificates of officers of the Company and such other
      representatives, warranties, undertakings, and other documents as the Placement
      Agents or its counsel may reasonably request, in form and substance satisfactory
      to the Placement Agents and its counsel. The essence of this requirement will
      be
      to confirm compliance with securities laws, to confirm information provided
      to
      investors, and to confirm that the terms of the Proposed Offering to which
      investors subscribed remain as presented to them. Additionally, the Company
      will
      not instruct investors participating in any closing to remit investment funds
      unless those investment funds are deposited by such investors into an escrow
      account approved by the Placement Agents. 

     

    13.
       Miscellaneous.
      

     

    (a)
      This
      Agreement may not be amended or modified except in writing signed by
the
      parties. 

     

    (b)
      This
      Agreement shall be deemed to have been made and delivered in New York, and
      both
      this Agreement and the transactions contemplated hereby shall be governed as
      to
      validity, interpretation, construction, effect and in all other respects by
      the
      internal laws of the State of New York. Each of the Placement Agents and the
      Company (i) agrees that any legal suit, action or proceeding arising out of
      or
      relating to this Agreement and/or the transactions. contemplated hereby,
      including without limitation, any such legal suit, action or proceeding against
      any present or former officer, partner, employee or agent of the Placement
      Agents, each of whom is intended to be a third-party beneficiary of the
      agreement contained in this Section, shall be instituted exclusively in New
      York
      Supreme Court, County of New York, or in the United States District Court for
      the Southern District of New York, (ii) waives any objection which it may have
      or hereafter to the venue of any such suit, action or proceeding, and (iii)
      irrevocably consents to the jurisdiction of the New York Supreme Court, County
      of New York, and the United States District Court for the Southern District
      of
      New York in any such suit, action or proceeding. Each of the Placement Agents
      and the Company further agrees to accept and acknowledge service of any and
      all
      process which may be served in any such suit, action or proceeding in the New
      York Supreme Court, County of New York, or in the United States District Court
      for the Southern District of New York, and agrees that (x) service of process
      upon the Company mailed by certified mail to the Company's address on the first
      page of this Agreement shall be deemed in every respect effective service of
      process upon the Company in any such suit, action or proceeding, and (y) service
      of process upon the Placement Agents mailed by certified mail to KCM's and
      CA's
      addresses as first set forth above shall be deemed in every respect effective
      service process upon the Placement Agents in any such suit, action or
      proceeding. 

     

    (c)
      Notwithstanding anything herein to the contrary, the representations, warranties
      and covenants set forth herein will remain in full force and effect regardless
      of any investigation made by or on behalf of the Placements Agents or any other
      entity or persons and, along with the compensation, reimbursement, future
      services, indemnification, contribution and confidentiality provisions hereof,
      shall survive this Agreement and the Placement Agents' engagement hereunder.
      

     

    (d)
      If
      either Placement Agent incurs legal or other costs in collecting amounts due
      to
      it hereunder, such reasonable costs shall be reimbursed by the Company.

     

    
      
        
        

      

      
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    (e)
      The
      captions in this Agreement are used for convenience only and shall not be
      considered in interpreting this Agreement. 

     

    (f)
      This
      Agreement may be executed in counterparts, all of which together shall
      constitute one binding agreement between the Placement Agents and the Company.
      Signatures on documents delivered by facsimile/telecopier shall be deemed
      original signatures. 

     

    (g)
      All
      references herein to the date of this Agreement shall be deemed to mean the
      date
      on which this Agreement is countersigned by the Company as set forth below.
      

     

    (h)
      This
      Agreement, together with the Exhibit hereto, contains the entire agreement
      between the Company and the Placement Agents concerning the subject matter
      hereof and supersedes any prior understanding or agreement with respect thereto.
      Any waiver of any right or obligation hereunder must be in writing signed by
      the
      party against whom enforcement is sought. 

     

    (i)
      Any
      approvals or consents of the Placement Agents required hereunder shall require
      the consent of each Placement Agent, which consent shall not be unreasonably
      withheld or delayed. Any such consent may but need not be in writing.

     

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    If
      the
      terms of our engagement as set forth in this Agreement are satisfactory to
      you,
      kindly sign and date the enclosed copy of this Agreement and indemnification
      agreement and return them to the undersigned, together with a check in the
      amount of thirty
      thousand dollars ($30,000) made
      payable to Knight Capital Markets, LLC. If this Agreement is not executed by
      the
      Company within 10 days of the date hereof it shall cease to be a valid offer
      by
      the Placement Agents to act as the exclusive advisor and placement agent to
      the
      Company and it shall be deemed withdrawn. 

     

    Very
      truly yours, 

     

    KNIGHT
      CAPITAL MARKETS, LLC 

    By:
      /s/
      Sandy
      Reddin                                                   

    Name:
      Sandy Reddin

    Title:
      Managing Director, Investment Banking Date:
      ______________________________________

    

    

    CANACCORD
      ADAMS INC.

    

    By: 
      /s/ Russell W. Landon

    Name:
      Russell W. Landon

    Title:  
      Managing Director

    Date:
      _________________________________  

    

    

    

    

    

    

    ACCEPTED
      AND AGREED

    

    

    Perfectenergy
      International Limited

    By:
      /s/
      Wennan
      Li                           

    Name:
      Wennan Li 

    Title:
       CEO                                        
      

    Date:
      May
      31,
      2007                         

     

    
      
        
        

      

      
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    July
      13,
      2007

    

    Mr.
      Marcus Laun

    Mr.
      Barry
      Freeman

    Knight
      Capital Markets LLC

    100
      Manhattanville Road

    Purchase,
      NY 10577

    

    Gentlemen,

    

    This
      letter shall serve as an amendment to the letter dated May 23, 2007 among
      Canaccord Adams Inc. (“CA”), Knight Capital Markets LLC (“KCM”) and
      Perfectenergy International Limited (the “Letter”). Section 3 (b) of the Letter
      shall be amended to read:

    

    For
      acting as placement agent in connection with the Proposed Offering, the
      Placement Agents shall be entitled to receive, and the Company shall pay to
      the
      Placement Agents (or their designee(s)), the following (collectively the
“Placement Agent’s Compensation”). The Placement Agent’s Compensation shall be
      allocated 72.5% to CA and 27.5% to KCM.

    

    In
      acknowledgement and acceptance of the aforementioned change in the Letter,
      please sign in the space below.

    

    Very
      truly yours,

    

    CANACCORD
      ADAMS INC.

    

    By:
      /s/
      Russell W.
      Landon                 

    Name:
      Russell W. Landon

    Title:
      Managing Director

    

    Date:
      July
      13,
      2007                               

    

    KNIGHT
      CAPITAL MARKETS LLC

    

    By:
      /s/
      Ian
      Reddin                                

    

    Name:
      Ian
      Reddin

    

    Title:
      Managing Director

    

    Date:
      July
      19,
      2007                               

    

    

    

    

    
      
        
        

      

      
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    AMENDMENT
      TO ENGAGEMENT LETTER

     

    Reference
      is made to the engagement letter between Perfectenergy International Limited
      (the “Signatory”),
      Knight Capital Markets, LLC and Cannacord Adams, Inc. (the “Placement
      Agents”)
      dated
      May 23, 2007, as amended by letter agreement dated July 13, 2007 (the
“Engagement
      Letter”).

    

    WHEREAS,
      Section 13 of the Engagement Letter provides that the Engagement Letter may
      be
      amended with the written consent of the Signatory and the Placement
      Agents.

    

    WHEREAS,
      the Signatory and the Placement Agents desire to amend the Engagement and the
      Placement Agents desire to amend the Engagement Letter to add Perfectenergy
      International Limited (Nevada) (the “Public Company”) as a party thereto to
      avoid any doubt as to the binding effect of the Engagement Letter on both the
      Signatory and the Public Company.

    

    NOW
      THEREFORE, the parties hereto agree as follows:

    

    1. The
      definition of the term “Company” in the Engagement Letter is amended to mean
      both the Signatory and the Public Company and it is agreed that both the
      Signatory and the public Company are jointly and severally liable for all
      obligations of the Company under the Engagement Letter.

    

    2. For
      the
      avoidance of doubt, it is expressly agreed that the Securities to be offered
      pursuant to paragraph 1 of the Engagement Letter are those of the Public
      Company.

    

    3. All
      other
      terms and conditions of the Engagement Letter shall remain unchanged by this
      Amendment.

    

    

    (SIGNATURE
      PAGE FOLLOWS)

    

    
      
        
        

      

      
        10

        
          

        

      

      
        
        

      

    

    IN
      WITNESS WHEREOF, the Signatory, the Public Company and the Placement Agents
      have
      caused their respective signatures to this Amendment to be duly executed as
      of
      the date first written above.

    

    

    PERFECTENERGY
      INTERNATIONAL LIMITED (BVI)

    

    By:  
      /s/
      Jack
      Li                                                     

            
      Name: 

             Title:
      

    

    PERFECTENERGY
      INTERNATIONAL

    LIMITED
      (NEVADA) 

    

    By:  
      /s/
      Philip
      McDonald                                   

            
      Name: 

            
      Title:

    

    CANACCORD
      ADAMS, INC.

    

    By:  
      /s/
      Russell W.
      Landon                               

            
      Name: Russell W. Landon

             Title:  
      Managing Director

    

    KNIGHT
      CAPITAL MARKETS, LLC

    By:
      /s/
      Ian “Sandy”
Reddin                               

          
      Name: Ian “Sandy” Reddin

          
      Title:   Managing Director

    
 

     

     

    
      
        
        

      

      
        11Unassociated Document

    

      Exhibit
        10.15

      

      (Knight
        Capital Markets LLC letterhead)

      

      May
        23,
        2007

      

      Mr.
        Jack
        Li

      Perfectenergy
        International Limited

      479
        Youdong Road, Xinzhuang Town

      Minhang
        District, Shanghai 201100

      PRC

      

      Dear
        Mr.
        Li:

      

      Re:
        Indemnification

      

      Gentlemen:

      

      This
        Agreement will confirm that Perfectenergy (Shanghai) Limited has engaged
        Knight
        Capital Markets, LLC and Canaccord Adams Inc. to advise and assist it in
        connection with the matters referred to in the letter agreement dated May
        23,
        2007, (the “Engagement
        Letter”).
        In
        consideration of the covenant and obligations set forth in the Engagement
        Letter, the Company agrees to indemnify and hold harmless the Placement Agents,
        their affiliates, and each of their respective partners, directors, managers,
        officers and agents, consultants, employees advisors, representatives and
        controlling persons (each an “Indemnified
        Person”)
        from
        and against any claims, losses, damages, expenses or liabilities (collectively,
        “Losses”)
        including, without limitation, legal fees incurred in connection with
        investigating preparing, defending, paying, settling or compromising any
        action,
        claim, or proceeding to which any Indemnified Person may become subject and
        which is related to or arises out of the engagement set forth in the Engagement
        Letter or the transactions contemplated thereby. The Company will not, however,
        be responsible to an Indemnified Person with respect to any such Losses to
        the
        extent that a court of competent jurisdiction shall have determined by a
        final
        judgment not subject to further appeal that such Losses resulted from actions
        taken or omitted to be taken by such Indemnified Person or due to such
        Indemnified Person’s gross negligence, bad faith, or willful
        misconduct.

      

      The
        Company will reimburse each Indemnified Person for such Losses as such Losses
        are incurred or paid, notwithstanding the absence of judicial determination
        as
        to the propriety or enforceability of the Company’s obligation to reimburse such
        Indemnified Person for such Losses and the possibility that such payments
        might
        not later be held by a court of competent jurisdiction to have been improper.
        To
        the extent that any such reimbursement is so held to have been improper,
        the
        Indemnified Person promptly shall return it to the Company, together with
        interest, compounded annually, equal to the prevailing prime rate as published
        from time to time by The Wall Street Journal.

       

      
        
          
          

        

        
          
          

          
            

          

        

        
          
          

        

      

       

      If
        the
        indemnification provided for herein should be, for any reason whatsoever,
        unenforceable, unavailable or otherwise insufficient to hold each Indemnified
        Person harmless, the Company shall pay to or on behalf of each Indemnified
        Person contributions for such Losses so that the Indemnified Person ultimately
        bears only a portion of such Losses as is appropriate (i) to reflect the
        relative benefits received by such Indemnified Person on the one hand and
        the
        Company on the other hand in connection with the engagement set forth in
        the
        Engagement Letter and any transactions contemplated thereby, or (ii) if the
        allocation on the basis set forth in the immediately preceding clause (i)
        is not
        permitted by applicable law, to reflect not only the relative benefits referred
        to in such clause (i) but also the relative fault of the Indemnified Person
        and
        the Company as well as any other relevant equitable considerations; provided,
        however, in no event shall the aggregate contribution of all Indemnified
        Persons
        to all such Losses exceed the amount of the fees actually received by the
        Placement Agents pursuant to the Engagement Letter. The respective relative
        benefits received by all Indemnified Persons and the Company shall be deemed
        to
        be in the same proportion as the aggregate fee paid to the Placement Agents
        pursuant to the Engagement Letter bears to the total consideration paid or
        contemplated to be paid to, or received by, the Company or its stockholders,
        as
        the case may be, in connection with transactions contemplated by the Engagement
        Letter, whether or not such transactions are consummated. The relative fault
        of
        each Indemnified Person and the Company shall be determined by reference
        to,
        among other things, whether the actions or failures to act were by such
        Indemnified Person or the Company, and the parties’ relative intent, knowledge,
        access to information and opportunity to correct or prevent such action or
        failure to act. Notwithstanding the foregoing, no Indemnified Person shall
        have
        any obligation to investigate or verify the information provided to the
        Placement Agents in connection with the provision of services under the
        Engagement Letter, and the Company shall be solely liable for any Losses
        related
        to or arising out of the use of such information that is inaccurate for any
        reason.

      

      The
        Company also agrees that no Indemnified Person shall have any liability to
        the
        Company or its affiliates, directors, officers, employees, agents, consultants,
        advisors, representatives, control persons or stockholders, directly or
        indirectly, related to or arising out of the Engagement Letter or any
        transactions contemplated thereby, in connection with claims by third parties,
        except for Losses incurred by the Company to the extent a court of competent
        jurisdiction shall have determined by a final judgment not subject to further
        appeal that such Losses resulted from such Indemnified Person’s gross
        negligence, bad faith, or willful misconduct. In no event, regardless of
        the
        legal theory advanced, shall any Indemnified Person be liable for any
        consequential, indirect, incidental or special damages of any
        nature.

      

      In
        case
        any proceeding shall be instituted involving any Indemnified Person, such
        Indemnified Person promptly shall notify the Company in writing. The failure
        of
        an Indemnified Person to provide such prompt notice shall not reduce such
        Indemnified Person’s right to indemnification or contribution hereunder to the
        extent that such failure does not materially prejudice the ability to defend
        such proceeding. The Company shall retain counsel reasonably satisfactory
        to the
        Placement Agents to represent the Indemnified Persons and any others the
        Company
        may designate in such proceeding, shall have sole control of the defense
        of any
        such proceeding and shall pay the fees and disbursements of such counsel
        related
        to such proceeding. In any such proceeding, any Indemnified Person shall
        have
        the right to retain its own counsel, but the fees and expenses of such counsel
        shall be at the expense of such Indemnified Person, except to the extent
        that
        (i) the Company and the Indemnified Person shall have mutually agreed to
        the
        retention of such counsel at the Company’s expense or (ii) the named parties to
        any such proceeding (including any impleaded parties) include both the Company
        or any others the Company may designate and one or more Indemnified Persons,
        and
        representation of the Indemnified Persons and such other parties by the same
        counsel would be inappropriate due to actual or potential differing interests
        between them. In any case in which one or more Indemnified Persons are entitled
        to separate counsel due to such actual or potential differing interests,
        the
        Company shall not be liable for the expenses of more than one separate counsel,
        and such counsel shall be designated in writing by the Placement Agents.
        The
        Company shall have sole control of any settlement of any proceeding for which
        it
        is obligated to provide indemnification hereunder. Notwithstanding the foregoing
        the Company shall not, without the prior written consent of the Indemnified
        Person, effect any settlement of, or consent to the entry of any judgment
        in
        connection with, any pending or threatened proceeding in respect of which
        such
        Indemnified Person is or could have been a party and indemnity or contribution
        could have been sought hereunder by such Indemnified Person, unless such
        settlement or judgment includes an unconditional release of such Indemnified
        Person from all liability on claims that are the subject matter of the
        proceeding.

       

      
        
          
          

        

        
          ii

          
            

          

        

        
          
          

        

      

       

      The
        obligations of the Company referred to above shall be in addition to any
        rights
        that any Indemnified Person may otherwise have and shall inure to the benefit
        of
        and be binding upon any successors, assigns, heirs, and personal representatives
        of any Indemnified Person or the Company.

      

       

       

      
        	 	Very truly yours,	 
	 	 	 	 
	 	Perfectenergy
                International
                Limited	 
	 	 	 	 
	 	 	 	 
	 	By:	/s/
                Wennan Li	 
	 	Name:
                	Wennan
                Li	 
	 	Title:	CEO	 

      

      
 

      
        	KNIGHT CAPITAL
                MARKETS, LLC
                	 
	 	 	 
	 	 	 
	By:	/s/
                Sandy Reddin	 
	Name:	Sandy Reddin	 
	Title: 	Managing Director, Investment
                Banking	 
	 	 	 
	 	 	 
	CANACCORD ADAMS
                INC.	 
	 	 	 
	 	 	 
	By:	   	 
	Name:	Russell W. Landon	 
	Title:	Managing Director	 
	 	 	 

      

      

      
        
          
          

        

        
          iii

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