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Proc-Type: 2001,MIC-CLEAR
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<SEC-DOCUMENT>0001144204-06-005494.txt : 20060213
<SEC-HEADER>0001144204-06-005494.hdr.sgml : 20060213
<ACCEPTANCE-DATETIME>20060213164729
ACCESSION NUMBER:		0001144204-06-005494
CONFORMED SUBMISSION TYPE:	SC 13G/A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20060213
DATE AS OF CHANGE:		20060213

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			SILVER JACK
		CENTRAL INDEX KEY:			0000922714
		IRS NUMBER:				109321745

	FILING VALUES:
		FORM TYPE:		SC 13G/A

	BUSINESS ADDRESS:	
		BUSINESS PHONE:		2125428201

	MAIL ADDRESS:	
		STREET 1:		660 MADISON AVENUE
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10021

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Origin Agritech LTD
		CENTRAL INDEX KEY:			0001321851
		STANDARD INDUSTRIAL CLASSIFICATION:	BLANK CHECKS [6770]
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			D6
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-81139
		FILM NUMBER:		06604285

	BUSINESS ADDRESS:	
		STREET 1:		625 BROADWAY
		STREET 2:		SUITE 1111
		CITY:			SAN DIEGO
		STATE:			CA
		ZIP:			92101
		BUSINESS PHONE:		858-847-9000

	MAIL ADDRESS:	
		STREET 1:		625 BROADWAY
		STREET 2:		SUITE 1111
		CITY:			SAN DIEGO
		STATE:			CA
		ZIP:			92101
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13G/A
<SEQUENCE>1
<FILENAME>v035415_sc13g-a.txt
<TEXT>

                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION

                             Washington, D. C. 20549

                                  SCHEDULE 13G

                    Under the Securities Exchange Act of 1934

                                (Amendment No 1)*

                            Origin Agritech Limited.
- --------------------------------------------------------------------------------
                                (Name of Issuer)

                                  Common Stock
- --------------------------------------------------------------------------------
                         (Title of Class of Securities)

                                    G67828106
- --------------------------------------------------------------------------------
                                 (CUSIP Number)

                                December 31, 2005
- --------------------------------------------------------------------------------
             (Date of Event Which Requires Filing of this Statement)


Check the appropriate box to designate the rule pursuant to which this Schedule
is filed:

      |_| Rule 13d-1(b)
      |X| Rule 13d-1(c)
      |_| Rule 13d-1(d)

* The remainder of this cover page shall be filled out for a reporting person's
initial filing on this form with respect to the subject class of securities, and
for any subsequent amendment containing information which would alter the
disclosures provided in a prior cover page.

The information required in the remainder of this cover page shall not be deemed
to be "filed" for the purpose of Section 18 of the Securities Exchange Act of
1934 ("Act") or otherwise subject to the liabilities of that section of the Act
but shall be subject to all other provisions of the Act.


<PAGE>

CUSIP No. G67828106

         1    NAME OF REPORTING PERSONS
              I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (entities only)

              Jack Silver
- --------------------------------------------------------------------------------
         2    CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                                                     (a) |_|
                                                                     (b) |X|
              Not applicable
- --------------------------------------------------------------------------------
         3    SEC USE ONLY

- --------------------------------------------------------------------------------
         4    CITIZENSHIP OR PLACE OF ORGANIZATION

              United States citizen
- --------------------------------------------------------------------------------
                    5    SOLE VOTING POWER

                         1,066,600
NUMBER OF           ------------------------------------------------------------
SHARES              6    SHARED VOTING POWER
BENEFICIALLY
OWNED BY                 -0-
THE                 ------------------------------------------------------------
REPORTING           7    SOLE DISPOSITIVE POWER
PERSON
WITH                     1,066,600
                    ------------------------------------------------------------
                    8    SHARED DISPOSITIVE POWER

                         -0-
- --------------------------------------------------------------------------------
         9    AGGREGATE AMOUNT BENEFICIALLY OWNED BY THE REPORTING PERSON

                   1,066,600
- --------------------------------------------------------------------------------
         10   CHECK BOX IF THE AGREGATE AMOUNT IN ROW (9)
              EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)

              |_|
- --------------------------------------------------------------------------------
         11   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

              7.1%
- --------------------------------------------------------------------------------
         12   TYPE OF REPORTING PERSON*

              IN
- --------------------------------------------------------------------------------


<PAGE>

CUSIP No. G67828106

Item 1.

      (a) Name of Issuer:

            Origin Agritech Limited

      (b) Address of Issuer's Principal Executive Offices:

            625 Broadway
            Suite 1111
            San Diego, CA 92101

Item 2.

      (a) Name of Person Filing:

            Jack Silver

      (b) Address of Principal Business Office or, if none, Residence:

            SIAR Capital LLC
            660 Madison Avenue
            New York, NY 10021

      (c) Citizenship:

            United States

      (d) Title of Class of Securities:

            Common Stock

      (e) CUSIP Number:

            G67828106

Item 3. If this statement is filed pursuant to ss.ss.240.13d-1(b), or
240.13d-2(b) or (c), check whether the person filing is a:

(a)   |_| Broker or Dealer registered under Section 15 of the Act

(b)   |_| Bank as defined in section 3(a)(6) of the Act

(c)   |_| Insurance Company as defined in section 3(a)(19) of the Act

(d)   |_| Investment Company registered under section 8 of the Investment
      Company Act

(e)   |_| Investment Adviser registered under section 203 of the Investment
      Advisers Act of 1940


<PAGE>

CUSIP No. G67828106

(f)   |_| Employee Benefit Plan or endowment Fund in accordance with Rule
      13d-1(b)(1)(ii)(F);

(g)   |_| Parent Holding Company, in accordance with Rule 13d-1(b)(ii)(G);

(h)   |_| A savings association as defined in Section 3(b) of the Federal
      Deposit Insurance Act;

(i)   |_| A church plan that is excluded from the definition of an investment
      company under section 3(c)(14) of the Investment Company Act of 1940;

(j)   |_| Group, in accordance with Rule 13d-1(b)(1)(ii)(J).

Item 4. Ownership.

(a) - (c)

      Jack Silver beneficially owns 1,066,600 shares of Common Stock of Origin
      Agritech Limited, formerly known as Chardan China Acquisition Corp.,
      representing 7.1% of the outstanding Common Stock. Such shares of Common
      Stock beneficially owned by Mr. Silver include (i) 1,011,600 shares of
      Common Stock held by Sherleigh Associates Inc. Profit Sharing Plan, a
      trust of which Mr. Silver is the trustee and (ii) 55,000 shares of Common
      Stock held by Sherleigh Associates Inc. Defined Benefit Pension Plan, a
      trust of which Mr. Silver is the trustee.

      Mr. Silver has the sole voting and dispositive power with respect to all
      1,066,600 shares of Common Stock beneficially owned by him.

Item 5. Ownership of Five Percent or Less of a Class.

If this statement is being filed to report the fact that as of the date hereof
the reporting person has ceased to be the beneficial owner of more than five
percent of the class of securities, check the following |_|.

Item 6. Ownership of More than Five Percent on Behalf of Another Person.

      Not applicable.

Item 7. Identification and Classification of the Subsidiary Which Acquired the
Security Being Reported on By the Parent Holding Company or Control Person.

      Not applicable.


<PAGE>

Item 8. Identification and Classification of Members of the Group.

      Not applicable.

Item 9. Notice of Dissolution of Group.

      Not applicable.

Item 10. Certification.

      By signing below I certify that, to the best of my knowledge and belief,
the securities referred to above were not acquired and are not held for the
purpose of or with the effect of changing or influencing the control of the
issuer of the securities and were not acquired and are not held in connection
with or as a participant in any transaction having such purposes or effect.

                                    SIGNATURE

      After reasonable inquiry and to the best of my knowledge and belief, I
certify that the information set forth in this statement is true, complete and
correct.


                                        February  13, 2006
                                        ----------------------------------------
                                        Date

                                        /s/ Jack Silver
                                        ----------------------------------------
                                        Signature

                                        Jack Silver
                                        ----------------------------------------
                                        Name/Title
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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