Document:

Exhibit 10.19

              Agreement to File Schedules, Supplements and Exhibits

         Origin Agritech Limited, a company formed under the laws of the British
Virgin Islands ("Agritech"), hereby agrees to provide to the United States
Securities and Exchange Commission ("SEC"), such schedules, supplements and
exhibits to the Stock Purchase Agreement dated December 20, 2004, among Chardan
China Acquisition Corp., a Delaware corporation ("Chardan"), State Harvest
Holdings Limited, a company formed under the laws of the British Virgin Islands
("State Harvest") and certain shareholders of Chardan and State Harvest.
Further, Agritech agrees to file as an exhibit to the Registration Statement on
Form S-4, No. 333- 124709 or another filing with the SEC, if requested to be
filed by the Staff of the SEC or if such agreement becomes material and subject
to the filing requirements of Regulation S-K such above referenced schedules,
supplements and exhibits.

Agreed as of this 14th day of
June, 2005

/s/ Kerry Propper
--------------------------------------
Kerry Propper,
President and SecretaryEXHIBIT 10.20

                              EMPLOYMENT AGREEMENT

      AGREEMENT, dated as of 15th of December 2004 between Dr. Han Gengchen,
residing at ____________________________ ("Executive"), and Origin BVI a British
Virgin Islands corporation having its principal office at
__________________________ ("Company")

      WHEREAS, the Company believes that Executive provides unique management
services for the Company and wishes to retain the continued services of
Executive as its Chief Executive Officer; and

      WHEREAS, the Company and Executive have reached an understanding with
respect to the extension of Executive's employment with the Company for a three
year period commencing as of January 1st 2005 and

      WHEREAS, the Company and Executive desire to evidence their agreement in
writing and to provide for the employment of Executive by the Company on the
terms set forth herein.

      IT IS AGREED:

1.    Employment, Duties and Acceptance.

                  1.1. Effective as of January 1st 2005 the Company hereby
            agrees to the continued employment of Executive as its Chief
            Executive Officer hereby accepts such continued employment on the
            terms and conditions contained in the Agreement. During the term of
            this Agreement, the Executive shall make himself available to the
            Company to pursue the business of the Company subject to the
            supervision and direction of the Board of Directors of the Company
            ("Board" or "Board of Directors") of which he shall be nominated to
            be Chairman during the initial term hereof.

                  1.2. The Board may assign the Executive such general
            management and supervisory responsibilities and executive duties for
            the Company as are appropriate and commensurate with Executive's
            position as Chairman and Chief Executive Officer of the Company
            ("CEO") and would otherwise be consistent in stature and prestige
            with the responsibilities of a CEO.

                  1.3. Executive accepts such employment and agrees to devote
            substantially all of his business time, energies and attention to
            the performance of his duties; provided, however, that Executive may
            continue to be actively involved in educational and civic activities
            to the extent that such activities do not materially detract from
            the reasonable performance of his duties (such material detraction
            to be evidenced by a resolution approved by the majority of the
            Board and a written notice to Executive, in which event Executive
            shall have one hundred and twenty (120) days to reduce the level of
            such activities in a reasonable manner). The Company recognizes the
            value to it of Executive's continued involvement in these activities
            and will reimburse Executive for reasonable expenses incurred by him
            in connection with such activities. Nothing herein shall be
            construed as preventing Executive from (i) making and supervising
            investments on a personal or family basis (including trusts, funds
            and investment entities in which Executive or members of his family
            have an interest) and (ii) in serving on the Board of Directors of
            not more than three corporations involved primarily in "for profit"
            business activities; provided, however, that these activities do not
            materially interfere with the performance of his duties hereunder or
            violate the provisions of Section 4.4 hereof.

<PAGE>

2.    Compensation and Benefits.

                  2.1 The Company shall pay to Executive a salary at an annual
            base rate of not less than $250,000 for the first two-year period
            during the term hereof . During the Executive's employment salary
            will be paid not less frequently than every two weeks without the
            prior written consent of Executive. Executive's annual base rate
            will be reviewed one month prior to the commencement of the third
            year for purposes of determining what the new base salary will be.

                  2.2. The Company shall also pay to Executive such bonuses as
            may be determined from time to time by the Compensation Committee of
            the Board of Directors. The amount of annual bonus payable to
            Executive may vary at the discretion of the Compensation Committee
            of the Board of Directors; provided, however, that the total bonus
            shall not exceed 50% of Executive's annual base rate under Section
            2.1 as of the date the bonus is awarded. In determining the annual
            bonus to be paid to the Executive, the Compensation Committee may,
            among other factors they believe to be appropriate, consider, and
            give varying degrees of importance to, the Executive's contribution
            to the following:

                  (1) growth in the Company's per share value;
                  (2) achievement by the Company of specific identified targets
                  selected by the Committee from time to time;
                  (3) the attraction and retention of key executive personnel by
                  the Company;
                  (4) satisfaction of the Company's capital
                  requirements;
                  (5) the establishment of strategic direction and significant
                  Company goals;
                        and
                  (6) Such other criteria as the Compensation Committee deems to
                  be relevant.

                  2.3. Executive shall be entitled to such insurance and other
            benefits including, among others, medical and disability coverage
            and life insurance as are afforded to other senior executives of the
            Company, subject to applicable waiting periods and other conditions
            which may be generally applicable. The Company also shall purchase
            if possible (i) long term disability insurance of not less than 50%
            of Executive's then current annual salary and (ii) split dollar life
            insurance with coverage of not less than $1.0 million. The
            beneficiary of these policies shall be designated by Executive and
            these policies shall be transferred to Executive or his designees by
            the Company at his written request.

                  2.4. Executive shall be entitled to five weeks of vacation in
            each calendar year and to a reasonable number of other days off for
            religious and personal reasons.

                  2.5. Executive shall be entitled, at his option, to maintain a
            suitable automobile for business use. The Company shall reimburse
            Executive for the costs of leasing such automobile and for all other
            costs associated with the use of the vehicle, including insurance
            costs, repairs and maintenance.

<PAGE>

                  2.6. The Company will pay or reimburse executive for all
            transportation, hotel and other expenses incurred by Executive on
            business trips (including business or first class air travel on
            scheduled flights of more than two (5) consecutive hours) and for
            all other ordinary and reasonable out-of-pocket expenses actually
            incurred by him in the conduct of the business of the Company
            against itemized vouchers submitted with respect to any such
            expenses.

                  2.7. Executive agrees that his services shall be rendered
            primarily at the Company's executive offices which shall be located
            in, or within thirty (30) miles of, the Company's current executive
            offices located in )______________________.

                  2.8. The Company shall not move its executive offices without
            Executive's written consent. If such consent is provided, the
            Company will reimburse Executive for the following, which may be
            taxable to Executive:

                  (1) Usual and customary expenses incurred if Executive sells
            his home himself or through a broker; however, reimbursement for the
            broker's commission (if Executive utilizes the services of a broker)
            may not exceed six (6) percent of the sales proceeds;

                  (2) Reasonable expenses incurred in moving furniture, normal
            household goods and personal belongings to the new location and
            incidental expenses related to the move;

                  (3) Reasonable expenses (including travel and hotel) while
            house-hunting, including four trips to the new location with
            Executive's spouse and children;

                  (4) Reasonable and customary closing costs incurred in buying
            Executive's new home; and

                  (5) Reasonable temporary living expenses incurred while
            awaiting occupancy in Executive's new quarters.

3.    Term and Termination.

                  3.1. The term of this Agreement commences as of January 1st
            2005 and shall continue until January 1st 2008 unless sooner
            terminated as herein provided.

                  3.2. If Executive dies during the term of this Agreement, this
            Agreement shall thereupon terminate, except that the Company shall
            pay to the legal representative of Executive's estate the base
            salary due Executive pursuant to Section 2.1 hereof through the
            first anniversary of Executive's death (or the scheduled expiration
            under Section 3.1, if earlier than the first anniversary date) as
            well as a pro rata allocation of bonus payments under Section 2.2
            based on the days of service during the year of death, and all
            amounts owing to Executive at the time of termination, including for
            previously accrued but unpaid bonuses, expense reimbursements and
            accrued but unused vacation pay.

                  3.3. If Executive shall be rendered incapable by an
            incapacitating illness or disability (either physical or mental) of
            complying with the terms, provisions and conditions hereof on his
            part to be performed for a period in excess of 180 consecutive days
            during any consecutive twelve (12) month period, then the Company,
            at its option, may terminate this Agreement by written notice to
            Executive (the "Disability Notice") delivered prior to the date
            Executive resumes the rendering of services hereunder; provided,
            however, if requested by Executive (or a representative thereof)
            such termination shall not occur until after examination of
            Executive by a medical doctor (retained by the Company with the

<PAGE>

            consent of the Executive which consent shall not be unreasonably
            withheld) who certifies in a written report to the Board with a copy
            of such report delivered simultaneously to Executive that Executive
            is and shall be incapable of performing his duties for in excess of
            two additional months because of the continuing existence of such
            incapacitating illness or disability. Notwithstanding such
            termination, the Company (a) shall make a payment to Executive of a
            pro rata allocation of payments under Section 2.2 based on the days
            of service during the year in which the Disability Notice is
            delivered and (b) shall pay to Executive the base salary due
            Executive pursuant to Section 2.1 hereof through the second
            anniversary of the date of such notice (the "Disability Period"),
            less any amount Executive receives for such period from any
            Company-sponsored or Company-paid for source of insurance,
            disability compensation or governmental program. The Company shall
            also pay to Executive all amounts owing to Executive at the time of
            termination, including for previously accrued but unpaid bonuses,
            expense reimbursements and accrued but unused vacation pay.

                  3.4. The Company, by notice to Executive, may terminate this
            Agreement for cause. As used herein, "cause" shall include (a) the
            refusal in bad faith by Executive to carry out specific written
            directions of the Board, (b) intentional fraud or dishonest action
            by Executive in his relations with the Company ("dishonest" for
            these purposes shall mean Executive's knowingly making of a material
            misstatement to the Board for the purpose of obtaining direct
            personal benefit); or (c) the conviction of Executive of any crime
            involving an act of significant moral turpitude after appeal or the
            period for appeal has elapsed without an appeal being filed by
            Executive. Notwithstanding the foregoing, no "cause" for termination
            shall be deemed to exist with respect to Executive's acts described
            in clause (a) or (b) above, unless the Board shall have given
            written notice to Executive (after five (5) days advance written
            notice to Executive and a reasonable opportunity to Executive to
            present his views with respect to the existence of "cause"),
            specifying the "cause" with particularity and , within twenty (20)
            business days after such notice, Executive shall not have disputed
            the Board's determination or in reasonably good faith taken action
            to cure or eliminate prospectively the problem or thing giving rise
            to such "cause," provided, however, that a repeated breach after
            notice and cure, of any provision of clause (a) or (b) above,
            involving the same or substantially similar actions or conduct,
            shall be grounds for termination for cause upon not less than five
            (5) days additional notice from the Company.

                  3.5. The Executive, by notice to the Company, may terminate
            this Agreement if a "Good Reason" exists. For purposes of this
            Agreement, "Good Reason" shall mean the occurrence of any of the
            following circumstances without the Executive's prior express
            written consent:

                   (a) a material adverse change in the nature of Executive's
                  title, duties or responsibilities with the Company that
                  represents a demotion from his title, duties or
                  responsibilities as in effect immediately prior to such
                  change; (b) a material breach of this Agreement by the
                  Company; (c) a failure by the Company to make any payment to
                  Executive when due, unless the payment is not material and is
                  being contested by the Company, in good faith; (d) a
                  liquidation, bankruptcy or receivership of the Company; or (e)
                  if Executive is at any time not a member of the Board of
                  Directors of the Company and a member of the Executive
                  Committee thereof (if such a committee exists), unless he
                  voluntarily resigns therefrom; or (f) any person or entity

<PAGE>

                  other than the Company and/or any officers or directors of the
                  Company as of the date of this Agreement acquires securities
                  of the Company other than from Executive or his affiliates (in
                  one or more transactions) having 51% or more of the total
                  voting power of all the Company's securities then outstanding.
                  Notwithstanding the foregoing, no Good Reason shall be deemed
                  to exist with respect to the Company's acts described in
                  clauses (a), (b) or (c) above, unless Executive shall have
                  given written notice to the Company specifying the Good Reason
                  with reasonable particularity and, within twenty (20) business
                  days after such notice, the Company shall not have cured or
                  eliminated the problem or thing giving rise to such Good
                  Reason; provided, however, that a repeated breach after notice
                  and cure of any provision of clauses (a), (b) or (c) above
                  involving the same or substantially similar actions or
                  conduct, shall be grounds for termination for Good Reason
                  without any additional notice from Executive.

                  3.6. In the event that Executive terminates this Agreement for
            Good Reason, pursuant to the provisions of paragraph 3.5, or the
            Company terminates this Agreement without "Cause," as defined in
            paragraph 3.4, the Company shall continue to pay to Executive (or in
            the case of his death, the legal representative of Executive's
            estate or such other person or persons as Executive shall have
            designated by written notice to the Company), all payments,
            compensation and benefits required under paragraph 2 hereof through
            the earlier of (y) two (2) years from the date of termination or (z)
            through the term of this Agreement; provided, however, that
            Executive's insurance coverage shall terminate upon the Executive
            becoming covered under a similar program by reason of employment
            elsewhere. If Executive's employment is terminated for Good Reason
            or without "Cause," Executive shall have no duty to mitigate awards
            paid or payable to him pursuant to this subsection, and any
            compensation paid or payable to Executive from sources other than
            the Company will not offset or terminate the Company's obligation to
            pay to Executive the full amounts pursuant to this subsection 3.6.

4.    Protection of Confidential Information; Non-Competition.

                  4.1. Executive acknowledges that:

                  (1) As a result of his current employment with the Company,
            Executive will obtain secret and confidential information concerning
            the business of the Company and its subsidiaries and affiliates
            (referred to collectively in this Article 4 as the "Company"),
            including, without limitations, financial information, designs and
            other proprietary rights, trade secrets and "know-how," customers
            and sources ("Confidential Information").

                  (2) The Company will suffer substantial damage which will be
            difficult to compute if, during the period of his employment with
            the Company or thereafter, Executive should enter a business
            competitive with the Company or divulge Confidential Information.

                  (3) The provisions of this Agreement are reasonable and
            necessary for the protection of the business of the Company.

                  4.2. Executive agrees that he will not at any time, either
            during the term of this Agreement or thereafter, divulge to any
            person or entity any Confidential Information obtained or learned by
            him as a result of his employment with the Company, except (i) in
            the course of performing his duties hereunder, (ii) to the extent
            that any such information is in the public domain other than as a
            result of Executive's breach of any of his obligations hereunder,
            (iii) where required to be disclosed by court order, subpoena or
            other government process or (iv) if such disclosure is made without
            Executive's knowing intent to cause material harm to the Company. If

<PAGE>

            Executive shall be required to make disclosure pursuant to the
            provisions of clause (iii) of the preceding sentence, Executive
            promptly, but in no event more than 72 hours after learning of such
            subpoena, court order, or other government process, shall notify, by
            personal delivery or by electronic means, confirmed by mail, the
            Company and, at the Company's expense, Executive shall: (a) take
            reasonably necessary and lawful steps required by the Company to
            defend against the enforcement of such subpoena, court order or
            other government process, and (b) permit the Company to intervene
            and participate with counsel of its choice in any proceeding
            relating to the enforcement thereof.

                  4.3. Upon termination of his employment with the Company,
            Executive will promptly deliver to the Company all memoranda, notes,
            records, reports, manuals, drawings, blue-prints and other documents
            (and all copies thereof) relating to the business of the Company and
            all property associated therewith, which he may then possess or have
            under his control; provided, however, that the Executive shall be
            entitled to retain one copy of such documents for his personal use
            and records.

                  4.4. During the period commencing January 1st 2005 and
            terminating three years after termination of employment: (A)
            Executive, without the prior written permission of the Company,
            shall not, anywhere in the People's Republic of China, (i) enter
            into the employ of or render any services to any person, firm or
            corporation engaged in any business which is directly in competition
            with the Company's principal existing business at the time of
            termination ("Competitive Business"); (ii) engage in any Competitive
            Business as an individual, partner, shareholder, creditor, director,
            officer, principal, agent, employee, trustee consultant, advisor or
            in any other relationship or capacity; (iv) employ, or have or cause
            any other person or entity to employ, any person who was employed by
            the Company at the time of termination of Executive's employment by
            the Company (other than Executive's personal secretary and
            assistant); or (v) solicit, interfere with, or endeavor to entice
            away from the Company, for the benefit of a Competitive Business,
            any of its customers. Notwithstanding the foregoing, Executive shall
            not be precluded from investing and managing the investment of, his
            or his family's assets in the securities of any corporation or other
            business entity which is engaged in a Competitive Business if such
            securities are traded on a national stock exchange or in the
            over-the-counter market and if such investment does not result in
            his beneficially owning, at any time, more than 5% of any class of
            the publicly-traded equity securities of such Competitive Business;
            provided, however, that for a period commencing January 1st 2005 and
            terminating three years after termination of Executive's employment
            (except for investments in a class of securities trading on public
            markets), Executive shall refer to the Company for consideration (
            before any other party) any and all opportunities to acquire or
            purchase, or otherwise make equity or debt investments in, companies
            primarily involved in a Competitive Business if such opportunities
            becomes known to Executive while he is the Chairman and Chief
            Executive Officer of the Company. If the Company determines not to
            exploit any opportunity referred to in the foregoing sentence, the
            Company shall determine what, if anything, should be done with such
            opportunity. Executive shall not be entitled to any compensation, as
            a finder or otherwise, if either the Company or Executive introduces
            such opportunity to other persons, it being understood that all such
            compensation shall be paid to the Company. Notwithstanding the
            foregoing, in the event the Company terminates this Agreement
            without "cause" or if Executive terminates this Agreement for Good
            Reason under Section 3.5 hereof, Executive's obligations under this
            Section 4.4 shall terminate one month following termination.

                  4.5. If Executive commits a breach of any of the provisions of
            Sections 4.2 or 4.4, the Company shall have the right:

                  (1) to have the provisions of this Agreement specifically
            enforced by any court having equity jurisdiction, it being
            acknowledged and agreed by Executive that the services being
            rendered hereunder to the Company are of a special, unique and
            extraordinary character and that any breach or threatened breach
            will cause irreparable injury to the Company and that money damages
            will not provide an adequate remedy to the Company; and

<PAGE>

                  (2) to require Executive to account for and pay over to the
            Company all monetary damages determined by a non-appealable decision
            by a court of law to have been suffered by the Company as the result
            of any actions constituting a breach of any of the provisions of
            Section 4.2 or 4.4, and Executive hereby agrees to account for and
            pay over such damages to the Company (up to the maximum of all
            payments made under the Agreement).

                  4.6. If Executive shall violate any covenant contained in
            Section 4.4, the duration of such covenant so violated shall be
            automatically extended for a period of time equal to the period of
            such violation.

                  4.7. If any provision of Sections 4.2 or 4.4 is held to be
            unenforceable because of the scope, duration or area of its
            applicability, the tribunal making such determination shall not have
            the power to modify such scope, duration, or area, or all of them
            and such provision or provisions shall be void ab initio.

5.    Miscellaneous Provisions.

                  5.1. All notices provided for in this Agreement shall be in
            writing, and shall be deemed to have been duly given when delivered
            personally to the party to receive the same, when transmitted by
            electronic means, or when mailed first class postage prepared, by
            certified mail, return receipt requested, addressed to the party to
            receive the same at his or its address set forth below, or such
            other address as the party to receive the same shall have specified
            by written notice given in the manner provided for in this Section
            5.1. All notices shall be deemed to have been given as of the date
            of personal delivery, transmittal or mailing thereof.

                           If to Executive:

                           If to the Company:

                  5.2. In the event of any claims, litigation or other
            proceedings arising under this Agreement (including, among others,
            arbitration under Section 3.4), the Executive shall be reimbursed by
            the Company within thirty (30) days after delivery to the Company of
            statements for the costs incurred by the Executive in connection
            with the analysis, defense and prosecution thereof, including
            reasonable attorneys' fees and expenses; provided, however, that
            Executive shall reimburse the Company for all such costs if it is
            determined by a non-appealable final decision of a court of law that
            the Executive shall have acted in bad faith with the intent to cause
            material damage to the Company in connection with any such claim,
            litigation or proceeding.

<PAGE>

                  5.3. The Company, shall to the fullest extent permitted by
            law, indemnify Executive for any liability, damages, losses, costs
            and expenses arising out of alleged or actual claims (collectively,
            "Claims") made against Executive for any actions or omissions as an
            officer and/or director of the Company or its subsidiary. To the
            extent that the Company obtains director and officers insurance
            coverage for any period in which Executive was an officer, director
            or consultant to the Company, Executive shall be a named insured and
            shall be entitled to coverage thereunder.

                  5.4. The provision of Article 4, Sections 5.2 and 5.3 and any
            provisions relating to payments owed to Executive after termination
            of employment shall survive termination of this Agreement for any
            reason.

                  5.5. This Agreement and the Stock Option Agreements executed
            simultaneously herewith set forth the entire agreement of the
            parties relating to the employment of Executive and are intended to
            supersede all prior negotiations, understandings and agreements. No
            provisions of this Agreement or the Stock Option Agreements may be
            waived or changed except by a writing by the party against whom such
            waiver or change is sought to be enforced. The failure of any party
            to require performance of any provision hereof or thereof shall in
            no manner affect the right at a later time to enforce such
            provision.

                  5.6. All questions with respect to the construction of this
            Agreement, and the rights and obligations of the parties hereunder,
            shall be determined in accordance with the law of the State of
            California applicable to agreements made and to be performed
            entirely in California.

                  5.7. This Agreement shall inure to the benefit of and be
            binding upon the successors and assigns of the Company. This
            Agreement shall not be assignable by Executive, but shall inure to
            the benefit of and be binding upon Executive's heirs and legal
            representatives.

                  5.8. Should any provision of this Agreement become legally
            unenforceable, no other provision of this Agreement shall be
            affected, and this Agreement shall continue as if the Agreement had
            been executed absent the unenforceable provision.

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

                                                BY: /s/ GengChen Han

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