Document:

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                                                                  Exhibit 10(jj)

                                                                         ANNEX A

                     AMENDMENT TO ALBRIGHT & WILSON COMPANY
                          GENERAL PARTNERSHIP AGREEMENT

         This Agreement amending the Albright & Wilson Company General
Partnership Agreement (as amended, the "PARTNERSHIP AGREEMENT") is entered into
as of March 23, 2000, between Albright & Wilson Americas Inc., a Delaware
corporation ("A&W INC."), PCS Phosphate Company, Inc., a Delaware corporation
("PCSP") and PCS Industrial Products, Inc., a Delaware corporation ("NEW
PARTNER").

         WHEREAS, A&W Inc. and PCSP are parties to the Partnership Agreement,
which created Albright & Wilson Company ("A&W CO.") as a Virginia general
partnership;

         WHEREAS, A&W Inc. and PCSP believe it is in the best interests of A&W
Co. to admit New Partner as a general partner of A&W Co. with a percentage
interest equal to the percentage interest set forth next to New Partner's name
on Schedule 1 attached hereto;

         WHEREAS, the New Partner desires to become a general partner of A&W Co.
and to have all the rights and be subject to all the obligations of a general
partner under the Partnership Agreement;

         WHEREAS, A&W Inc. and PCSP desire to make certain amendments to the
Partnership Agreement to provide for the admission of the New Partner as a
general partner;

         WHEREAS, A&W Inc. and PCSP wish to amend the Partnership Agreement in
order to establish the rights and obligations of an A&W Co. member after its
partnership interest has been transferred;

         WHEREAS, A&W Inc. and PCSP also believe that it is in the best interest
of A&W Co. to provide for distributions by A&W Co. to Partners other than in
accordance with Section 5.02 of the Partnership Agreement, which provides for
distributions on a "pro rata" basis in accordance with the Partner's respective
Shares as of that time, so long as such alternative method of distribution is
agreed to by vote of the Partners;

         WHEREAS, A&W Inc. and PCSP wish to amend the Partnership Agreement in
order to provide for agreement among Partners with regard to distributions which
are other than "pro rata" in accordance with Share ownership; and

         WHEREAS, A&W Inc. and PCSP desire to change the name of A&W Co.

         NOW, THEREFORE, in consideration of the premises and the mutual
covenants herein set forth, the parties agree as follows:

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         1.       Definitions. Unless otherwise defined herein, all defined
terms used in this Agreement shall have the same definitions as contained in the
Partnership Agreement.

         2.       Amendments to Partnership Agreement.

                  A. Unless otherwise provided in this Agreement, throughout the
         entirety of the Partnership Agreement, each usage of A&W Co. shall be
         replaced with "PCS Purified Phosphates."

                  B. Section 2.02. Section 2.02 (Shares) of the Partnership
         Agreement is hereby amended in its entirety to read as follows:

                     "2.02 Shares. Except as otherwise provided in Article
                  VIII or IX of this Agreement, the percentage interest of each
                  Partner in PCS Purified Phosphates shall be as set forth on
                  Schedule 1 attached hereto."

                  C. Section 4.01. Section 4.01 (Capital Contributions) of the
         Partnership Agreement is hereby amended by adding the following
         paragraph (d) to the end of Section 4.01:

                           "(d) On March 23, 2000, PCS Industrial Products,
                  Inc. shall contribute to PCS Purified Phosphates the amount of
                  $450,000 which will represent the capital contribution of PCS
                  Industrial Products, Inc. to PCS Purified Phosphates and will
                  entitle PCS Industrial Products, Inc. to the percentage
                  interest in PCS Purified Phosphates set forth next to PCS
                  Industrial Product, Inc.'s name on Schedule 1 attached
                  hereto."

                  D. Sub-section 1.01(s). Sub-section 1.01(s) (Definitions;
         Partner) is hereby amended in its entirety to read as follows:

                          "(s) "Partner" shall mean PCS Phosphate Company, Inc.,
                  Albright and Wilson Americas Inc., or PCS Industrial Products,
                  Inc., as the case may be, and the term "Partners" shall mean
                  all of the Partners."

                  E. Section 6.02. Section 6.02 (Distributions) of the
         Partnership Agreement is hereby amended by placing the phrase "as
         otherwise agreed by unanimous vote of the Partners or" after the word
         "Except" in the first sentence.

                  F. Article VIII. Article VIII (Transfer of Interest) is hereby
         amended by adding the following new Section 8.03 after existing Section
         8.02:

                           "8.03  Dissociation.
                                  ------------

                                    (a) Upon the transfer by a Partner of its
                           entire interest in PCS Purified Phosphates pursuant
                           to Section 8.01 hereof, the

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                           remaining non-transferring Partners (the
                           "CONTINUING PARTNERS") shall dissociate the
                           transferring Partner (the "DISSOCIATED PARTNER") from
                           PCS Purified Phosphates by filing a statement of
                           dissociation with the Virginia State Corporation
                           Commission.

                                    (b) Effective upon the filing of the notice
                           of dissociation pursuant to Section 8.03(a) hereof:

                                             (i) PCS Purified Phosphates shall
                                    not be dissolved under the Act and shall
                                    continue in existence as a Virginia general
                                    partnership;

                                            (ii) The Dissociated Partner will
                                    cease to be a general partner in PCS
                                    Purified Phosphates, and shall have no
                                    further rights, no partnership interests, no
                                    obligations, no liabilities and no duties
                                    under this Agreement, including, but not
                                    limited to, (A) any and all rights in PCS
                                    Purified Phosphates partnership property,
                                    (B) any and all partnership interests in PCS
                                    Purified Phosphates, including, but not
                                    limited to, profits and losses, and (C) any
                                    and all management rights with respect to
                                    PCS Purified Phosphates, including but not
                                    limited to, the right to appoint members to
                                    the PCS Purified Phosphates Management
                                    Committee pursuant to Section 3.01 hereof;

                                             (iii) The Dissociated Partner shall
                                    not be entitled to indemnification as
                                    provided in Section 50-73.112 of the Act;

                                            (iv) The Dissociated Partner shall
                                    not have any duties under the New Chapter,
                                    including the duties of care and loyalty set
                                    forth under Section 50-73.102 of the New
                                    Chapter; and

                                            (v) The Dissociated Partner waives
                                    any entitlement it may have to a buyout
                                    price of its shares under Section 50-73-112
                                    of the New Chapter. In lieu thereof, the
                                    Dissociated Partner and the Continuing
                                    Partners may fix a method or formula for
                                    determining the buyout price and all other
                                    terms and conditions of the buyout right of
                                    the Dissociated Partner's partnership
                                    interest whether in connection with a
                                    transfer under Section 8.01 hereof or
                                    otherwise to the fullest extent permitted
                                    under the law of the Commonwealth of
                                    Virginia.

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                                    (c) In connection with any transfer under
                           Section 8.01 hereof, PCS Purified Phosphates, the
                           Continuing Partners and the Dissociated Partner shall
                           agree to all liabilities and obligations of each of
                           PCS Purified Phosphates, the Continuing Partners and
                           the Dissociated Partner with respect to one another,
                           in a written agreement, for the periods prior to and
                           after the dissociation of the Dissociated Partner
                           (the "CONTINUING OBLIGATIONS"). Notwithstanding
                           anything in this Agreement to the contrary, except
                           for those Continuing Obligations expressly agreed to
                           by the Partners, (A) the Dissociated Partner shall
                           not have any other Continuing Obligations, and shall
                           not have any other liabilities or obligations, to PCS
                           Purified Phosphates and the Continuing Partners, and
                           (B) PCS Purified Phosphates and the Continuing
                           Partners shall have no other Continuing Obligations
                           to the Dissociated Partner.

         3. Acceptance and Acknowledgment of New Partner. New Partner
acknowledges receipt of the Partnership Agreement and all amendments thereto, a
copy of which is attached hereto as Exhibit A, and hereby specifically accepts,
adopts, and agrees to each and every provision of the Partnership Agreement. By
execution of this Amendment, New Partner agrees that it shall be deemed to have
executed the Partnership Agreement.

         4. Removal of References to A&W Inc. Effective immediately upon the
dissociation of the Selling Partner (as defined in the Distribution and Sale
Agreement dated as of March 23, 2000 by and among A&W Inc., PCSP, New Partner,
PCS Purified Phosphates and Rhodia Inc., a Delaware corporation), PCSP and New
Partner shall amend and restate the Partnership Agreement in its entirety (the
"AMENDED AND RESTATED PARTNERSHIP AGREEMENT"). PCSP and New Partner hereby
covenant that the Amended and Restated Partnership Agreement shall not contain
any references to A&W Inc. (including, without limitation, all references to
Albright & Wilson Americas Inc.) or any corresponding references to rights,
interests, obligations, liabilities, duties and responsibilities of A&W Inc.

         5. Reaffirmation. Except as specifically amended herein, all terms and
conditions of the Partnership Agreement in effect prior to this Agreement
thereto remain in full force and effect.

                                    * * * * *

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           (SIGNATURE PAGE FOR AMENDMENT TO ALBRIGHT & WILSON COMPANY
                         GENERAL PARTNERSHIP AGREEMENT)

         IN WITNESS WHEREOF, the Partners hereto have executed this Agreement as
of the day and year first above written.

                                 ALBRIGHT & WILSON AMERICAS INC.

                                 By:  /s/ L. WORK
                                      --------------------------------------
                                      Name: Lyall Work
                                      Title: President

                                 PCS PHOSPHATE COMPANY, INC.

                                 By:  /s/ T.J. REGAN, JR.
                                      --------------------------------------
                                      Name: Thomas J. Regan, Jr.
                                      Title: President

                                 PCS INDUSTRIAL PRODUCTS, INC.

                                 By:  /s/ T.J. REGAN, JR.
                                      --------------------------------------
                                      Name: Thomas J. Regan, Jr.
                                      Title: President

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           (SIGNATURE PAGE FOR AMENDMENT TO ALBRIGHT & WILSON COMPANY
                     GENERAL PARTNERSHIP AGREEMENT, PAGE 2)

                                  ALBRIGHT & WILSON COMPANY

                                  By:  ALBRIGHT & WILSON AMERICAS
                                       INC., a General Partner

                                  By:  /s/ L. WORK
                                       -------------------------------------
                                       Name: Lyall Work
                                       Title: President

                                  By:  PCS PHOSPHATE COMPANY, INC.,
                                       a General Partner

                                  By:  /s/ T.J. REGAN, JR.
                                       -------------------------------------
                                       Name: Thomas J. Regan, Jr.
                                       Title: President

                                  By:  PCS INDUSTRIAL PRODUCTS, INC.,
                                       a General Partner

                                  By:  /s/ T.J. REGAN, JR.
                                       -------------------------------------
                                       Name: Thomas J. Regan, Jr.
                                       Title: President

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                                   SCHEDULE 1

NAME                                         PERCENTAGE INTEREST IN PCS PURIFIED
----                                         PHOSPHATES
                                             -----------------------------------

Albright & Wilson Americas, Inc.             49.75%

PCS Phosphate Company, Inc.                  49.75%

PCS Industrial Products, Inc.                 0.5%

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                                    EXHIBIT A

              A&W CO. GENERAL PARTNERSHIP AGREEMENT AND AMENDMENTS

                            [AS SEPARATELY PROVIDED]<PAGE>   1
                                                                   Exhibit 4.4

                            FIRST AMENDMENT AGREEMENT

     This First Amendment Agreement is made as of the 23rd day of December,
1998, among PARK-OHIO INDUSTRIES, INC., an Ohio corporation, ("Borrower"),
the banking institutions listed on SCHEDULE 1 to the Credit Agreement, as
hereinafter defined ("Banks"), KEYBANK NATIONAL ASSOCIATION, as administrative
agent for the Banks ("Administrative Agent"), and THE HUNTINGTON NATIONAL BANK,
as co-agent for the Banks ("Co-Agent", and, together with Administrative Agent,
"Agents").

     WHEREAS, Borrower, Agents and the Banks are parties to a certain Amended
and Restated Credit Agreement dated as of November 2, 1998, as it may from time
to time be amended, restated or otherwise modified, which provides, among other
things, for loans aggregating One Hundred Fifty Million Dollars ($150,000,000),
all upon certain terms and conditions ("Credit Agreement");

     WHEREAS, Borrower, Agents and the Banks desire to amend the Credit
Agreement to modify certain provisions thereof; and

     WHEREAS, each term used herein shall be defined in accordance with the
Credit Agreement;

     NOW, THEREFORE, in consideration of the premises and of the mutual
covenants herein and for other valuable considerations, Borrower, Agents and the
Banks agree as follows:

     1. Section 5.7 of the Credit and Security Agreement is hereby amended to
delete subsection (b) therefrom in its entirety and to insert in place thereof
the following:

         (b) SENIOR FUNDED INDEBTEDNESS TO CAPITALIZATION. Borrower and its
     Subsidiaries shall not suffer or permit, at any time, the ratio of (i)
     Total Senior Funded Indebtedness to (ii) Total Capitalization, to exceed
     .35 to 1.00, based upon Borrower's financial statements for the most
     recently completed fiscal quarter.

     2. Concurrently with the execution of this First Amendment Agreement,
Borrower shall:

     (a) cause each Guarantor of Payment to consent and agree to and acknowledge
the terms of this First Amendment Agreement; and

     (b) pay all legal fees and expenses of Administrative Agent in connection
with this First Amendment Agreement.

     3. Borrower hereby represents and warrants to Agents and the Banks that
(a) Borrower has the legal power and authority to execute and deliver this First
Amendment Agreement, (b) the officers executing this First Amendment Agreement
have been duly authorized to execute and deliver the same and bind Borrower with
respect to the provisions hereof, (c) the execution and
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delivery hereof by Borrower and the performance and observance by Borrower of
the provisions hereof do not violate or conflict with the organizational
agreements of Borrower or any law applicable to Borrower or result in a breach
of any provision of or constitute a default under any other agreement,
instrument or document binding upon or enforceable against Borrower, (d) no
Unmatured Event of Default or Event of Default exists under the Credit
Agreement, nor will any occur immediately after the execution and delivery of
the First Amendment Agreement or by the performance or observance of any
provision hereof, (e) Borrower is not aware of any claim or offset against, or
defense or counterclaim to, any of Borrower's obligations or liabilities under
the Credit Agreement or any Related Writing, and (f) this First Amendment
Agreement constitutes a valid and binding obligation of Borrower in every
respect, enforceable in accordance with its terms.

     4. Each reference that is made in the Credit Agreement or any other writing
to the Credit Agreement shall hereafter be construed as a reference to the
Credit Agreement as amended hereby. Except as herein otherwise specifically
provided, all provisions of the Credit Agreement shall remain in full force and
effect and be unaffected hereby. This First Amendment Agreement is a Related
Writing as defined in the Credit Agreement.

     5. Borrower and each Guarantor of Payment, by signing below, hereby waives
and releases Administrative Agent, Co-Agent and each of the Banks and the
respective directors, officers, employees, attorneys, affiliates and
subsidiaries of each of the foregoing from any and all such claims, offsets,
defenses and counterclaims of which Borrower or such Guarantor of Payment is
aware, such waiver and release being with full knowledge and understanding of
the circumstances and effect thereof and after having consulted legal counsel
with respect thereto.

     6. This First Amendment Agreement may be executed in any number of
counterparts, by different parties hereto in separate counterparts and by
facsimile signature, each of which when so executed and delivered shall be
deemed to be an original and all of which taken together shall constitute but
one and the same agreement.

     7. The rights and obligations of all parties hereto shall be governed by
the laws of the State of Ohio, without regard to principles of conflicts of
laws.

                  [Remainder of page intentionally left blank.]

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     8. JURY TRIAL WAIVER. BORROWER, AGENTS AND EACH OF THE BANKS WAIVE ANY
RIGHT TO HAVE A JURY PARTICIPATE IN RESOLVING ANY DISPUTE, WHETHER SOUNDING IN
CONTRACT, TORT OR OTHERWISE, AMONG BORROWER, AGENTS AND THE BANKS, OR ANY
THEREOF, ARISING OUT OF, IN CONNECTION WITH, RELATED TO, OR INCIDENTAL TO THE
RELATIONSHIP ESTABLISHED AMONG THEM IN CONNECTION WITH THIS AGREEMENT OR ANY
NOTE OR OTHER INSTRUMENT, DOCUMENT OR AGREEMENT EXECUTED OR DELIVERED IN
CONNECTION HEREWITH OR THE TRANSACTIONS RELATED THERETO. THIS WAIVER SHALL NOT
IN ANY WAY AFFECT, WAIVE, LIMIT, AMEND OR MODIFY AGENTS' OR ANY BANK'S ABILITY
TO PURSUE REMEDIES PURSUANT TO ANY CONFESSION OF JUDGMENT OR COGNOVIT PROVISION
CONTAINED IN ANY NOTE OR OTHER INSTRUMENT, DOCUMENT OR AGREEMENT AMONG BORROWER,
AGENTS AND THE BANKS, OR ANY THEREOF.

                                     PARK-OHIO INDUSTRIES, INC.

                                         /s/ James S. Walker
                                     By: _______________________________
                                         James S. Walker, Vice President

                                         /s/ Ronald J. Cozean
                                     and ______________________________
                                          Ronald J. Cozean, Secretary

                                     KEYBANK NATIONAL ASSOCIATION,
                                        as a Bank and as Administrative Agent

                                         /s/ Kenneth M. Merhar
                                     By: _________________________________
                                         Kenneth M. Merhar, Vice President

                                     THE HUNTINGTON NATIONAL BANK,
                                        as a Bank and as Co-Agent

                                         /s/ Timothy M. Ward
                                     By: __________________________________
                                          Timothy M. Ward, Vice President

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                            GUARANTOR ACKNOWLEDGMENT
                            ------------------------

     The undersigned consents and agrees to and acknowledges the terms of the
foregoing First Amendment Agreement. The undersigned further agrees that the
obligations of the undersigned pursuant to the Guaranty of Payment executed by
the undersigned shall remain in full force and effect and be unaffected hereby.

                                ADVANCED VEHICLES, INC.
                                ARDEN INDUSTRIAL PRODUCTS, INC.
                                BLUE FALCON FORGE, INC.
                                CASTLE RUBBER COMPANY
                                CHARKEN COMPANY, INC.
                                CICERO FLEXIBLE PRODUCTS, INC.
                                GENERAL ALUMINUM MANUFACTURING COMPANY II
                                GENERAL ALUMINUM MFG. COMPANY
                                KAY HOME PRODUCTS, INC.
                                RB&W CORPORATION
                                THE AJAX MANUFACTURING COMPANY
                                TOCCO, INC.

                                    /s/ James S. Walker
                                By: ____________________________________
                                    James S. Walker, Vice President
                                    of each of the foregoing Companies

                                    /s/ Ronald J. Cozean
                                By: ___________________________________
                                    Ronald J. Cozean, Secretary
                                    of each of the foregoing Companies

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