SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                  Schedule 13G
                    Under the Securities Exchange Act of 1934

                               Amendment No.: 2 *

                        Name of Issuer: Aceto Corporation

           Title of Class of Securities: Common Stock, $.01 par value

                             CUSIP Number: 004446100


             Date of Event Which Requires Filing of this Statement:

                                December 19, 2002

           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 provide 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.



CUSIP Number:  004446100

1.       Name of Reporting Persons
         I.R.S. Identification No. of Above Persons

                  Schweizerhall, Inc.

2.       Check the appropriate Box if a Member of a Group

                  a.       X
                  b.

3.       SEC Use Only

4.       Citizenship or Place of Organization

                  New Jersey

Number of Shares Beneficially Owned by Each Reporting Person
With:

5.       Sole Voting Power:

                  600,000

6.       Shared Voting Power:

                  0

7.       Sole Dispositive Power:

                  600,000

8.       Shared Dispositive Power:

                  0

                                    Cover-2



9.       Aggregate Amount Beneficially Owned by Each Reporting Person

                  600,000

10.      Check if the Aggregate Amount in Row (9) Excludes Certain Shares  / /

11.      Percent of Class Represented by Amount in Row (9)

                  9.19%

12.      Type of Reporting Person

                  CO

                                    Cover-3


 CUSIP Number:  004446100

1.       Name of Reporting Persons
         I.R.S. Identification No. of Above Persons

                  Schweizerhall Holding AG

2.       Check the appropriate Box if a Member of a Group

                  a.       X
                  b.

3.       SEC Use Only

4.       Citizenship or Place of Organization

                  Switzerland

Number of Shares Beneficially Owned by Each Reporting Person
With:

5.       Sole Voting Power:

                  0

6.       Shared Voting Power:

                  0

7.       Sole Dispositive Power:

                  0

8.       Shared Dispositive Power:

                  0

                                    Cover-4


9.       Aggregate Amount Beneficially Owned by Each Reporting Person

                  0

10.      Check if the Aggregate Amount in Row (9) Excludes Certain Shares  / /

11.      Percent of Class Represented by Amount in Row (9)

                  0%

12.      Type of Reporting Person

                  CO

                                    Cover-5


Item 1   (a)      Name of Issuer:  Aceto Corporation

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

                  One Hollow Lane
                  Lake Success, New York  11042

Item 2   (a)-(c)  Name, Address of Principal Business office, and Citizenship
of Persons Filing:

                  Schweizerhall, Inc.
                  c/o Nicholas L. Truglio, CPA
                  Rosenberg, Rich, Baker, Berman & Company
                  380 Foothill Road
                  PO Box 6483
                  Bridgewater, NJ 08807-0483
                  Place of organization - New Jersey

                  Schweizerhall Holding AG
                  CH-4013 Basel
                  Switzerland
                  Place of organization - Switzerland


         (d)      Title of Class of Securities:  Common Stock, $.01 par value

         (e)      CUSIP Number:  004446100

Item 3.  If this statement is filed pursuant to Rule 13d-1(b) (1) or 13d-2(b)
or (c) check whether the person filing is: N/A

If this statement is filed pursuant to Rule 13d-1(c), check this box.     /X/



Item 4.  Ownership.

(a)      Amount Beneficially Owned:
                Schweizerhall, Inc.: 600,000 shares (with sole power to vote
                and sole power to dispose of)
                Schweizerhall Holding AG: 0 shares

(b)      Percent of Class:
                Schweizerhall, Inc.: 9.19%
                Schweizerhall Holding AG: 0%

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

                  N/A

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

                  N/A

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

                  N/A

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

                  See Exhibit Attached.

Item 9.  Notice of Dissolution of Group.

                  N/A







Item 10. Certification for Rule 13d-1(c): 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 that purpose or effect.


                                     Schweizerhall, Inc.


                                     By: /s/ Hans C. Noetzli
                                        ---------------------------------------
                                         Hans C. Noetzli, Chairman of the Board



December 20, 2002
                                     Schweizerhall Holding AG


                                     By: /s/ Dr. Hans Peter Schaer
                                        ---------------------------------------
                                         Dr. Hans Peter Schaer,
                                         Chairman of the Board


                                     By: /s/ Dr. Eugene Peter
                                        ---------------------------------------
                                         Dr. Eugene Peter, Vice President




                                    Agreement


     The undersigned agree that this Schedule 13G dated December 20, 2002
relating to the Common Stock of Aceto Corporation shall be filed on behalf of
the undersigned.

                                     Schweizerhall, Inc.


                                     By: /s/ Hans C. Noetzli
                                        ---------------------------------------
                                         Hans C. Noetzli, Chairman of the Board



                                     Schweizerhall Holding AG


                                     By: /s/ Dr. Hans Peter Schaer
                                        ---------------------------------------
                                         Dr. Hans Peter Schaer,
                                         Chairman of the Board


                                     By: /s/ Dr. Eugene Peter
                                        ---------------------------------------
                                         Dr. Eugene Peter, Vice President