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                                                                    EXHIBIT 10.7

     WRITTEN DESCRIPTION OF NON-WRITTEN CONSULTANCY AGREEMENT WITH SHAWN QU

     Prior to December 2005, the Registrant paid Dr. Shawn Qu, its chairman and
chief executive officer, compensation for his services in the form of
consultancy fees, on a quarterly basis, to a consulting company owned by him.
The consultancy agreement was non-written and provided for consultancy fees to
be paid to Dr. Qu in return for the project consulting, general management and
technology services that he provided to the Registrant.<PAGE>
                                                                    EXHIBIT 10.8

 WRITTEN DESCRIPTION OF NON-WRITTEN CONSULTANCY AGREEMENT WITH ROBERT PATTERSON

     The Registrant paid consultancy fees pursuant to a non-written agreement,
on a monthly basis, to a consulting company owned by Robert Patterson, the
Registrant's vice president of corporate and products development and general
manager of Canadian operations, prior to his joining the Registrant as an
officer in January 2006. Under the agreement, Mr. Patterson provided project
consulting services to the Registrant, in particular in connection with its
large-scale CIDA projects, for 40 hours per month with a minimum retainer of
C$2,000 per month. For additional work beyond the initial period and minimum
retainer, Mr. Patterson was paid on an hourly basis.<PAGE>

                                                                    Exhibit 10.9

                               SECURITY AGREEMENT

To:          ATS AUTOMATION TOOLING SYSTEMS INC.

The undersigned (hereinafter called the "Debtor") hereby enters into this
Security Agreement with ATS AUTOMATION TOOLING SYSTEMS INC. (hereinafter called
the "Company") for valuable consideration and as security for the repayment of
all present and future indebtedness of the Debtor to the Company and interest
thereon and for the payment and discharge of all other present and future
liabilities and obligations, direct or indirect, absolute or contingent, of the
Debtor to the Company (all such indebtedness, interest, liabilities and
obligations being hereinafter collectively called the "Obligations"). This
Security Agreement is entered into pursuant to and is governed by the Personal
Property Security Act (Ontario) insofar as it affects personal property located
in Ontario.

1.    The Debtor hereby:

      (a)   mortgages and charges to the Company as and by way of a fixed and
            specific mortgage and charge, and grants to the Company a security
            interest in all its present and future equipment and any proceeds
            therefrom, including, without limiting the generality of the
            foregoing, all fixtures, plant, machinery, tools and furniture now
            or hereafter owned or acquired or in respect of which the Debtor has
            rights now or in the future and any equipment specifically listed or
            otherwise described in any schedule hereto;

      (b)   mortgages and charges to the Company, and grants to the Company a
            security interest in all its present and future inventory and any
            proceeds therefrom, including, without limiting the generality of
            the foregoing, all raw materials, goods in process, finished goods
            and packaging material and goods acquired or held for sale or
            furnished or to be furnished under contracts of rental or service;

      (c)   assigns, transfers and sets over to the Company, and grants to the
            Company a security interest in all its present and future
            intangibles and any proceeds therefrom, including, without limiting
            the generality of the foregoing, all its present and future
            accounts, accounts receivable, contract rights and other choses in
            action of every kind or nature now due or hereafter to become due,
            including insurance rights arising from or out of the assets
            referred to in sub-clauses (a) and (b) above;

      (d)   grants, mortgages, charges, transfers and assigns to the Company a
            security interest in, all its present and future chattel papers,
            documents of title, instruments, money and securities, and any
            proceeds therefrom; and

      (e)   charges in favour of the Company as and by way of a floating charge
            its undertaking and all its property and assets, real and personal,
            moveable or immoveable, of whatsoever nature and kind, both present
            and future (other than property and assets hereby validly assigned
            or subjected to a specific mortgage and charge and to the exceptions
            hereinafter contained). For the purposes of this Security Agreement,
            the equipment, inventory, intangibles, undertaking and all

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            other property and assets of the Debtor referred to in this clause 1
            are hereinafter sometimes collectively called the "Collateral".
            Without limiting the generality of the description of Collateral as
            set out in this clause 1, and for greater certainty, the Collateral
            shall include all present and future personal property of the Debtor
            of the type described in any schedule attached hereto. The Debtor
            agrees that it shall promptly advise the Company in writing of any
            acquisition of personal property which is not of the type herein
            described. The Debtor agrees to execute and deliver from time to
            time, at its own expense, amendments to this Security Agreement or
            additional security agreements, which may be reasonably required by
            the Company to ensure attachment of security interests in such
            personal property.

2.    The Debtor shall at all times do, execute, acknowledge and deliver or
      cause to be done, executed, acknowledged or delivered all and singular
      every such further acts, deeds, transfers, assignments, security
      agreements and assurances as the Company may reasonably require for the
      better granting, transferring, assigning, charging, setting over, assuring
      and confirming unto the Company the property and assets hereby mortgaged
      and charged or subjected to security interests or intended so to be or
      which the Debtor may hereafter become bound to mortgage, charge, transfer,
      assign or subject to a security interest in favour of the Company and for
      the better accomplishing and effectuating of this Security Agreement.

3.    The Debtor shall at all times upon request by the Company furnish the
      Company with such information concerning the Collateral and the Debtor's
      affairs and business as the Company may reasonably request, including
      lists of inventory and equipment and lists of accounts and accounts
      receivable showing the amounts owing upon each account and securities
      therefor and copies of all financial statements, books and accounts,
      invoices, letters, papers and other documents in any way evidencing or
      relating to the account.

4.    The Debtor shall be in default under this Security Agreement upon the
      occurrence of any one of the following events:

      (a)   the Debtor shall default under any of the Obligations;

      (b)   the Debtor shall default in the due observance or performance of any
            covenant, undertaking or agreement heretofore or hereafter given to
            the Company, whether contained herein or not, and including any
            covenant or undertaking set out in any Schedule to this Security
            Agreement;

      (c)   an execution or any other process of any court shall become
            enforceable against the Debtor or a distress or analogous process
            shall be levied upon the property of the Debtor or any part thereof;

      (d)   the Debtor shall become insolvent or commit an act of bankruptcy or
            make an assignment in bankruptcy or a bulk sale of its assets or a
            bankruptcy petition shall be filed or presented against the Debtor
            and not be bona fide opposed by the Debtor;

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      (e)   the Debtor shall cease to carry on business.

5.    Upon any default under this Security Agreement, the Company may declare
      any or all of the Obligations to be immediately due and payable and the
      Company may proceed to realize the security hereby constituted and to
      enforce its rights of entry; or by the appointment by instrument in
      writing of a receiver or receivers of the subject matter of such security
      or any part thereof and such receiver or receivers may be any person or
      persons, whether an officer or officers or employee or employees of the
      Company or not, and the Company may remove any receiver or receivers so
      appointed and appoint another or others in his or their stead; or by
      proceedings in any court of competent jurisdiction for the appointment of
      a receiver or receivers or for sale of the Collateral or any part thereof;
      or by any other action, suit, remedy or proceeding authorized or permitted
      hereby or by law or by equity; and may file such proofs of claim and other
      documents as may be necessary or advisable in order to have its claim
      lodged in any bankruptcy, winding-up or other judicial proceedings
      relative to the Debtor. Any such receiver or receivers so appointed shall
      have power to take possession of the Collateral or any part thereof and to
      carry on the business of the Debtor, and to borrow money required for the
      maintenance, preservation or protection of the Collateral or any part
      thereof or the carrying on of the business of the Debtor, and to further
      charge the Collateral in priority to the security constituted by this
      Security Agreement as security for money so borrowed, and to sell, lease
      or otherwise dispose of the whole or any part of the Collateral on such
      terms and conditions and in such manner as he shall determine. In
      exercising any powers any such receiver or receivers shall act as agent or
      agents for the Debtor and the Company shall not be responsible for his or
      their actions.

      In addition, the Company may enter upon the applicable premises and lease
      or sell the whole or any part or parts of the Collateral. The Debtor
      agrees that considering the nature of that part of the Collateral that is
      not perishable it will be commercially reasonable to sell such part of the
      Collateral:

      (a)   as a whole or in various lots;

      (b)   by a public sale or call for tenders by advertising such sale once
            in a local daily newspaper at least seven (7) days before such sale;
            and

      (c)   by private sale after the receipt by the Company of at least two
            offers from prospective purchasers who may include persons related
            to or affiliated with the Debtor or other customers of the Company.

      Any such sale shall be on such terms and conditions as to credit or
      otherwise and as to upset or reserve bid or price as to the Company in its
      sole discretion may seem advantageous and such sale may take place whether
      or not the Company has taken possession of such property and assets.

      No remedy for the realization of the security hereof or for the
      enforcement of the rights of the Company shall be exclusive of or
      dependent on any other such remedy, but any one or more of such remedies
      may from time to time be exercised independently or in

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      combination. The term "receiver" as used in this Security Agreement
      includes a receiver and manager.

6.    Any and all payments made in respect of the Obligations from time to time
      and moneys realized from any securities held therefor (including moneys
      realized on any enforcement of this Security Agreement) may be applied to
      such part or parts of the Obligations as the Company may see fit, and the
      Company shall at all times and from time to time have the right to change
      any appropriation as the Company may see fit.

7.    The Debtor agrees to pay all reasonable expenses, including solicitor's
      fees and disbursements and the remuneration of any receiver appointed
      hereunder, incurred by the Company in the preparation, perfection and
      enforcement of this Security Agreement including all expenses incurred by
      the Company and its agents to put into place and confirm the priority of
      any security interest in this Security Agreement and the payment of such
      expenses shall be secured hereby.

8.    The Company may waive any default herein referred to; provided always that
      no act or omission by the Company in the premises shall extend to or be
      taken in any manner whatsoever to affect any subsequent default or the
      rights resulting therefrom.

9.    The Debtor acknowledges that value has been given, that the Debtor has
      rights in the Collateral and that the parties have not agreed to postpone
      the time for attachment of any security interest in this Security
      Agreement.

10.   The security hereof is in addition to and not in substitution for any
      other security now or hereafter held by the Company and shall be general
      and continuing security notwithstanding that the Obligations of the Debtor
      shall at any time or from time to time be fully satisfied or paid.

11.   Nothing herein shall obligate the Company to make any advance or loan or
      further advance or loan or to renew any note or extend any time for
      payment of any indebtedness or liability of the Debtor to the Company.

12.   This Security Agreement shall enure to the benefit of and be binding upon
      the respective heirs, executors, administrators, successors and assigns of
      the Debtor and the Company.

13.   In construing this Security Agreement, terms herein shall have the same
      meaning as defined in The Personal Property Security Act (Ontario), unless
      the context otherwise requires. The word "Debtor", the personal pronoun
      "it" or "its" and any verb relating thereto and used therewith shall be
      read and construed as required by and in accordance with the context in
      which such words are used depending upon whether the Debtor is one or more
      individuals, corporations or partnerships and, if more than one, shall
      apply and be binding upon each of them severally. The term "successors"
      shall include, without limiting its meaning, any corporation resulting
      from the amalgamation of a corporation with another corporation and, where
      the Debtor is a partnership, any new partnership resulting from the
      admission of new partners or any other change in the Debtor, including,
      without limiting the generality of the foregoing, the death of any or all
      of the partners.

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IN WITNESS WHEREOF this Security Agreement has been executed by the Debtor on
the 30th day of September, 2005.

                                     CANADIAN SOLAR INC.

                                     Per: /s/
                                          --------------------------
                                          Name:  Shawn Xiaohua Qu
                                          Title:  President

                                     I have authority to bind the corporation

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