Document:

<PAGE>

         AMENDMENT NO. 1 dated as of July 15, 2003 (the "Amendment"), to the
         SHARE EXCHANGE AND REORGANIZATION AGREEMENT, dated as of June 25, 2003,
         between CENTRE CAPITAL Corp., a Nevada corporation ("Centre"), and
         GUANGZHOU GENGAHI TECHNOLOGY DEVELOPMENT CO. LTD., a People's Republic
         of China ("PRC") corporation ("Genghai"), and THE SHAREHOLDERS OF
         GENGHAI, each of which is identified in Schedule A hereto (the "Genghai
         Shareholders").
         -----------------------------------------------------------------------

         Centre, Genghai and the Genghai Shareholders entered into the Share
Exchange and Reorganization Agreement on June 25, 2003 (the "Agreement").

         Pursuant to the terms of the Agreement the "Drop Dead Date" was July
15, 2003. Centre, Genghai and the Genghai Shareholders desire to amend the terms
of the Agreement to amend the definition of Drop Dead Date as follows.

                                    AMENDMENT
                                    ---------

         1. Each of Centre, Genghai and the Genghai Shareholders agree to delete
Section 4.01(f) of the Agreement in its entirety and replace as follows:

         There shall not have been any action taken, or any law, rule,
         regulation, order, judgment, or decree proposed, promulgated, enacted,
         entered, enforced, or deemed applicable to the transactions
         contemplated by this Agreement by any federal, state, local, or other
         governmental authority or by any court or other tribunal, including the
         entry of a preliminary or permanent injunction, which, in the
         reasonable judgment of Centre, (i) makes this Agreement or any of the
         transactions contemplated by this Agreement illegal, (ii) results in a
         delay in the ability of Genghai or Centre to consummate the
         transactions contemplated by this Agreement beyond September 15, 2003
         (the "Drop Dead Date"), (iii) requires the divestiture by Centre of a
         material portion of the business of either Centre or of Genghai, (iv)
         imposes material limitations on the ability of Centre effectively to
         exercise full rights of ownership of shares of Genghai including the
         right to vote such shares on all matters properly presented to the
         stockholders of Genghai, or (v) otherwise prohibits, restricts, or
         delays consummation of the transactions contemplated by this Agreement
         or impairs the contemplated benefits to Centre of this Agreement or any
         of the other transactions contemplated by this Agreement

         2. Each party agrees to execute such other documents, instruments,
agreements and consents, and take such other actions as may be reasonably
requested by the other parties hereto to effectuate the purposes of this
Amendment.

<PAGE>

         3. No modification, amendment or waiver of any provision of, or consent
required by, this Amendment, nor any consent to any departure herefrom, shall be
effective unless it is in writing and signed by each of the parties hereto. Such
modification, amendment, waiver or consent shall be effective only in the
specific instance and for the purpose for which given.

         4. This Amendment may be executed in one or more counterparts, each of
which shall be deemed an original instrument, but all of which collectively
shall constitute one and the same Amendment.

         5. This Amendment shall inure to the benefit of each of the parties
hereto and all their respective successors and permitted assigns. Nothing in
this Amendment is intended or shall be construed to give to any other person,
firm or corporation any legal or equitable right, remedy or claim under or in
respect of this Amendment or any provision herein contained.

         6. THIS AMENDMENT SHALL BE GOVERNED BY, AND CONSTRUED IN ACCORDANCE
WITH, THE LAWS OF THE STATE OF NEW YORK (WITHOUT GIVING EFFECT TO ANY CHOICE OR
CONFLICT OF LAWS PROVISIONS).

         7. This Amendment supersedes all prior amendments or understandings
among the parties relating to this Amendment. Except as set forth above, the
provisions of the Agreement shall remain in full force and effect as originally
stated therein.

              [THE REMAINDER OF THIS PAGE INTENTIONALLY LEFT BLANK]

                                      -2-
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         IN WITNESS WHEREOF, the parties have executed this Amendment as of the
date first above written.

                                             CENTRE CAPITAL CORP.

                                             By
                                               ---------------------------------
                                               Name:  Brice Scheschuk
                                               Title: President

Witness:

---------------------------------
Name:

                                             GUANHZHOU GENGHAI TECHNOLOGY
                                             DEVELOPMENT CO. LTD.

                                             By
                                               ---------------------------------
                                               Name:  Zhijian Lu
                                               Title: Director

Attest:

---------------------------------
Name:  Wu Ge
Title: Director

                                  [Amendment]
<PAGE>

                                             GENGHAI SHAREHOLDERS:

                                             ------------------------------
                                             Name:  Zhijian Lu

                                             ------------------------------
                                             Name:  Wu Ge

                                             ------------------------------
                                             Name:  Luofeng Wang

                                             ------------------------------
                                             Name:  Xiujian Huang

                 [Amended and Restated Subordination Agreement]<PAGE>

               GUANGZHOU GENGHAI TECHNOLOGY DEVELOPMENT CO., LTD.
                            NO. 1509 HANGYUN BUILDING
                               48, 2 ROAD, BA QI,
                                  GUANGZHOU PRC

                                                                 August 12, 2003

Centre Capital Corp.
285 Silver Birch Avenue
Toronto, Ontario, Canada M4E 3L6:

To Centre Capital Corp.

         It has come to the attention of the undersigned that the
representations and warranties set forth in Sections 2.01(o)(ii) and (r) of the
Share Exchange and Reorganization Agreement, dated as of June 25, 2003, between
Centre Capital Corp., a Nevada corporation ("Centre"), and Guangzhou Gengahi
Technology Development Co. Ltd., a People's Republic of China ("PRC")
corporation ("Genghai"), and the shareholders of Genghai, each of which is
identified in Schedule A thereto (the "Genghai Shareholders"), as amended by
Amendment No. 1, dated as of July 15, 2003 (as amended, the "Agreement')
relating to the reporting obligations of Centre under the Securities Exchange
Act of 1934, as amended (the "Exchange Act"), are materially incorrect in so far
as Centre is a reporting company under the Exchange Act.

         Accordingly, the parties to the Agreement hereby agree that it shall be
an additional condition to the obligations of Genghai and the Genghai
Shareholders under the Agreement that Centre receive from the United States
Securities and Exchange Commission written assurance, in form and substance
reasonably satisfactory to Genghai, that the procedure recommended by Genghai to
cause Centre to comply with the Exchange Act will not in any material way limit
the ability of Centre following the consummation of the transactions
contemplated by the Agreement to offer securities in offerings registered under
the Securities Act of 1933, as amended, whether on Form S-1, SB-2, S-8 or
otherwise.

<PAGE>

                                               Sincerely,

                                               GUANHZHOU GENGHAI TECHNOLOGY
                                               DEVELOPMENT CO. LTD.

                                               By_________________________
                                                 Name: Zhijian Lu
                                                 Title: Director

                                               GENGHAI SHAREHOLDERS:

                                               ---------------------------
                                               Name: Zhijian Lu

                                               ---------------------------
                                               Name: Wu Ge

                                               ---------------------------
                                               Name: Luofeng Wang

                                               ---------------------------
                                               Name: Xiujian Huang<PAGE>

                                                                    EXHIBIT 10.9

                   THIS NOTE HAS BEEN ACQUIRED FOR INVESTMENT
                      AND HAS NOT BEEN REGISTERED UNDER THE
                    SECURITIES ACT OF 1933 OR THE SECURITIES
                     LAWS OF ANY STATE. THIS NOTE MAY NOT BE
                   SOLD OR TRANSFERRED IN THE ABSENCE OF SUCH
                      REGISTRATION OR AN OPINION OF COUNSEL
                      SATISFACTORY TO THE ISSUER THAT SUCH
                    REGISTRATION IS NOT REQUIRED BY SAID ACT
                                 OR STATE LAWS,

                                ORTHOMETRIX, INC.

$100,000.00                                               White Plains, New York
                                                          May 27, 2003

                  ORTHOMETRIX, INC., a Delaware corporation (the "Company"), for
value received, promises to pay to REYNALD BONMATI (the "Payee"), the principal
sum of One Hundred Thousand U.S. Dollars ($100,000) on May 27, 2004 (the
"Maturity Date"), except as otherwise provided herein, together with interest on
the outstanding principal amount of this Note at the rate of prime (as published
from time to time by JP Morgan Chase) plus one per annum, except as otherwise
provided herein. Interest shall be payable quarterly on the last business day of
each March, June, September and December, commencing March 31, 2003.

                  1. Payments and Prepayments.
                  ----------------------------

                  1.1   Payments and prepayments of principal and interest on
this Note shall be made to Payee at 106 Corporate Park Drive, Suite 106, White
Plains, N.Y. 10604.

                  1.2   Payments and prepayments of principal and interest on
this Note shall be made in lawful money of the United States of America.

                  1.3   If any payment on this Note becomes due and payable on a
Saturday, Sunday or other day an which commercial banks in New York City are
authorized or required by law to close, the maturity thereof shall be extended
to the next succeeding business day, and, with respect to payments of principal,
interest thereon shall be payable during such extension at the then applicable
rate.

                  1.4   The Company shall be obligated to prepay the outstanding
principal amount of this Note within ten (10) days after such time as (i) the
Company receives net proceeds of at least $1,000,000 from an equity financing,
or (ii) the Company sells substantially all its assets. The Company shall have
the right at any time and from time to time to prepay this Note in whole or in
part, together with interest on the

<PAGE>

amount prepaid to the date of prepayment, without penalty or premium. Upon
payment of part of the principal amount of this Note, the Company may require
the holder to present this Note for notation of such payment and, if this Note
is paid in full, require the holder to surrender this Note.

                  1.5   Upon payrnent in full of all outstanding principal and
interest due under this Note, the Company's obligations in respect of payment of
this Note shall terminate and the holder shall return it to the Company.

                  2.    Events of Default. In the event that:

                        (a)   the Company defaults for more than five business
                        days in making any payment required to be made on this
                        Note; or

                        (b)   the Company hereafter makes an assignment for the
                        benefit of creditors, or files a petition in bankruptcy
                        as to itself, is adjudicated insolvent or bankrupt,
                        petitions or applies to any tribunal for the appointment
                        of any receiver of or any trustee for the Company or any
                        substantial part of its property under any bankruptcy,
                        reorganization, arrangement, readjustment of debt,
                        dissolution or liquidation law or statute of any
                        jurisdiction, whether now or hereafter in effect; or if
                        there is hereafter commenced against the Company any
                        such proceeding and an order approving the petition is
                        entered or such proceeding remains undismissed for a
                        period of 60 day, or the Company or its general partner
                        by any act or omission to act indicates its consent to
                        or approval of or acquiescence in any such proceeding or
                        the appointment of any receiver of, or trustee for, the
                        Company or any substantial part of its property, or
                        suffers any such receivership or trusteeship to continue
                        undischarged for a period of 60 days;

then, and in any such event, and at any time thereafter, if such event shall
then be continuing, the holder of this Note may, by written notice to the
Company, declare the Note due and payable, whereupon the same shall be due and
payable without presentment, demand, protest or other notice of any kind, all of
which are hereby expressly waived.

                  3.    Investment Representation.

                  3.1   The Payee hereby acknowledges that the Note is not being
registered (i) under the Securities Act of 1933, as amended (the "Act"), on the
ground that the issuance of the Note is exempt from registration under Section
4(2) of the Act as not involving any public offering or (ii) under any
applicable state securities law because the issuance of the Note does not
involve any public offering; and that the Company's reliance on the Section 4(2)
exemption of the Act and under applicable state securities laws is predicated in
part on the representations hereby made to the Company by the Payee that it is
acquiring the Note for investment for its own account, with no present intention
of dividing its participation with others or reselling or otherwise distributing
the same, subject, nevertheless, to any requirement of law that the disposition
of its property shall at all times be within its control.

<PAGE>

                  3.2   The Payee hereby agrees that it will not sell or
transfer all or any part of this Note unless and until it shall first have given
notice to the Company describing such sale or transfer and furnished to the
Company an opinion, reasonably satisfactory to counsel for the Company, of
counsel skilled in securities matters (selected by the holder and reasonably
satisfactory to the Company) to the effect that the proposed sale or transfer
may be made without registration under the Act and without registration or
qualification under any state.

                  3.3   The Company may refuse to recognize a transfer of this
Note on its books should a holder attempt to transfer this Note otherwise than
in compliance with this Section 3.

                  4.    Miscellaneous.

                  4.1   Upon receipt of evidence reasonably satisfactory to the
Company of the loss, theft, destruction or mutilation of this Note and of a
letter of indemnity reasonably satisfactory to the Company, and upon
reimbursement to the Company of all reasonable expenses incident thereto, and
upon surrender or cancellation of the Note, if mutilated, the Company will make
and deliver a new Note of like tenor in lieu of such lost, stolen, destroyed or
mutilated Note.

                  4.2   This Note and the rights and obligations of the Company
and each holder hereunder shall be construed in accordance with and be governed
by the laws of the State of New York.

                  IN WITNESS WHEREOF, the Company has executed this Note as of
the day and year first above written.

                                         ORTHOMETRIX, INC,

                                         By:    /s/ Neil H. Koenig
                                                ---------------------
                                         Name:  Neil Koenig
                                         Title: Chief Financial Officer

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