Document:

<PAGE>
                                                                   Exhibit 4.1.1

            FIRST SUPPLEMENTAL INDENTURE ("First Supplemental Indenture"), dated
as of January 15, 1999, among Philipp Brothers Chemicals, Inc., a New York
corporation (the "Company"), each of the Guarantors named herein, as guarantors,
and The Chase Manhattan Bank, as Trustee (the "Trustee").

            WHEREAS, the Company, the Guarantors and the Trustee have heretofore
executed and delivered to the Trustee an Indenture dated as of June 11, 1998
(the "Original Indenture"), providing for the issuance of the Initial Notes and
the Exchange Notes;

            WHEREAS, pursuant to the Registration Rights Agreement, the Company
filed a Registration Statement on Form S-4 (File No. 333-64641) with the
Securities and Exchange Commission (the "Commission") on September 29, 1998
under the Securities Act of 1933, as amended (the "Act"), as amended by
Amendment No. 1 thereto as filed with the Commission on November 23, 1998,
Amendment No. 2 thereto as filed with the Commission on December 14, 1998, and
Amendment No. 3 thereto filed with the Commission on December 17, 1998 (such
Registration Statement, as so amended, being hereinafter referred to as the
"Registration Statement"), in connection with the Company's offer to exchange
(the "Exchange Offer") the aggregate principal amount of the unregistered
Initial Notes for a like principal amount of Exchange Notes, as registered under
the Act pursuant to the Registration Statement;

            WHEREAS, the Registration Statement was declared effective by the
Commission on December 17, 1999 and, pursuant to the Registration Rights
Agreement, the Exchange Offer was consummated on January 15, 1999;

            WHEREAS, Section 9.01 of the Original Indenture provides that the
Company and the Trustee may execute this First Supplemental Indenture without
notice to or the consent of any Holder to provide for issuance of the Exchange
Notes;

            WHEREAS, the execution and delivery of this First Supplemental
Indenture and the Exchange Notes and Guaranties substantially in the form of
Exhibits B and F to the Indenture, respectively, have been authorized by
resolution of the respective Boards of Directors and shareholders of the Company
and the Guarantors;

            WHEREAS, the Company and the Guarantors authorize the Trustee to
cancel the Initial Notes and related Guarantees and to authenticate the Exchange
Notes and related Guarantees in replacement therefor;

            WHEREAS, all conditions and requirements necessary to make this
First Supplemental Indenture and the Exchange Notes the valid obligations of the
Company, and to make this First Supplemental Indenture and the Guarantees
relating to the Exchange Notes a valid and binding agreement of each of the
Guarantors, have been performed and fulfilled by the applicable parties hereto
and the execution and delivery hereof and thereof have been in all

                                       1
<PAGE>
respects duly authorized by the applicable parties hereto.

            NOW, THEREFORE, in consideration of the above premises, each party
agrees, for the benefit of the others and for the equal and ratable benefit of
the Holders of the Securities, as follows:

                                 ARTICLE ONE

                                EXCHANGE OFFER

            SECTION 1.01. Exchange of Initial Notes for Exchange Notes.

            Promptly following the execution and delivery of this First
Supplemental Indenture, the Trustee shall, upon the written order of the Company
in the form of an Officers' Certificate of the Company, authenticate and deliver
Exchange Notes substantially in the form of Exhibit B to the Indenture in
replacement of Initial Notes whose Holders have accepted the Exchange Offer and
exchanged their Notes in accordance therewith, and upon delivery of certificates
representing the Initial Notes to the Trustee for cancellation, the Trustee
shall cancel such Initial Notes.

                                   ARTICLE TWO

                                  MISCELLANEOUS

            SECTION 2.01. Execution of Supplemental Indenture; Modification of
Original Indenture.

            This First Supplemental Indenture is executed and shall be construed
as an indenture supplemental to the Original Indenture and, as provided in the
Original Indenture, this First Supplemental Indenture forms a part thereof.

            Except as otherwise expressly provided for in this First
Supplemental Indenture, all of the terms and conditions of the Original
Indenture are hereby ratified and shall remain unchanged and continue in full
force and effect.

            SECTION 2.02. Concerning the Trustee.

            The recitals contained herein, shall be taken as the statements of
the Company and the Guarantors and the Trustee assumes no responsibility for the
correctness of same. The Trustee makes no representations as to the validity or
sufficiency of this First Supplemental Indenture or of the Notes.

                                       2
<PAGE>
            SECTION 2.03. Counterparts.

            This First Supplemental Indenture may be executed in any number of
counterparts, each of which when so executed shall be deemed to be an original,
but all of such counterparts shall together constitute but one and the same
instrument.

            SECTION 3.03. Governing Law.

            This First Supplemental Indenture shall be governed by and
construed in accordance with the laws of the State of New York.

                                       3
<PAGE>
                               SIGNATURES

            IN WITNESS WHEREOF, the parties hereto have caused this First
Supplemental Indenture to be duly executed, all as of the date first written
above.

                                    PHILIPP BROTHERS CHEMICALS, INC.

                                    By:   /s/ Jack C. Bendheim
                                          ----------------------
                                          Name:  J. C. Bendheim
                                          Title:   President

                                    CP CHEMICALS, INC., as Guarantor

                                    By:   /s/ Nathan Bistricer
                                          -----------------------
                                          Name:  Nathan Bistricer
                                          Title: Vice President

                                    PHIBRO-TECH, INC., as Guarantor

                                    By:   /s/ Nathan Bistricer
                                          -----------------------
                                          Name:  Nathan Bistricer
                                          Title: Vice President

                                    MRT MANAGEMENT CORP., as Guarantor

                                    By:   /s/ Nathan Bistricer
                                          ---------------------
                                          Name:  Nathan Bistricer
                                          Title: Vice President

                                       4
<PAGE>
                                    MINERAL RESOURCE TECHNOLOGIES,
                                    L.L.C., as Guarantor

                                    By: MRT Management Corp.,
                                    Managing Member

                                    By:   /s/ Nathan Bistricer
                                          -----------------------
                                          Name:  Nathan Bistricer
                                          Title: Vice President

                                    PRINCE AGRIPRODUCTS, INC., as
                                    Guarantor

                                    By:   /s/ Nathan Bistricer
                                          -----------------------
                                          Name:  Nathan Bistricer
                                          Title: Vice President

                                    PHIBROCHEM, INC., as Guarantor

                                    By:   /s/ Nathan Bistricer
                                          -----------------------
                                          Name:  Nathan Bistricer
                                          Title: Vice President

                                    PHIBROCHEMICALS, INC., as Guarantor

                                    By:   /s/ Nathan Bistricer
                                          -----------------------
                                          Name:  Nathan Bistricer
                                          Title: Vice President

                                       5
<PAGE>
                                    WESTERN MAGNESIUM CORP., as
                                    Guarantor

                                    By:   /s/ Nathan Bistricer
                                          -----------------------
                                          Name:  Nathan Bistricer
                                          Title: Vice President

                                    THE PRINCE MANUFACTURING COMPANY,
                                    as Guarantor

                                    By:   /s/ Nathan Bistricer
                                          -----------------------
                                          Name:  Nathan Bistricer
                                          Title: Vice President

                                    THE PRINCE MANUFACTURING COMPANY,
                                    as Guarantor

                                    By:   /s/ Nathan Bistricer
                                          -----------------------
                                          Name:  Nathan Bistricer
                                          Title: Vice President

                                    THE CHASE MANHATTAN BANK, as Trustee

                                    By:   /s/ Sheik Witlshire
                                          ----------------------
                                          Name:  Sheik Wiltshire
                                          Title: Second Vice President

                                       6<PAGE>
                                                                   Exhibit 4.1.2

            SECOND SUPPLEMENTAL INDENTURE ("Second Supplemental Indenture"),
dated as of March 19, 2003, among Philipp Brothers Chemicals, Inc., a New York
corporation (the "Company"), each of the Guarantors named herein, as guarantors,
and JPMorgan Chase Bank, as successor to The Chase Manhattan Bank, as Trustee
(the "Trustee"). All capitalized terms not otherwise defined herein shall have
the meaning assigned to them in the Indenture (as defined herein).

            WHEREAS, pursuant to an Indenture dated as of June 11, 1998 among
the Company, the Guarantors named therein and the Trustee (the "Original
Indenture"), the Company issued its 9 7/8% Senior Subordinated Notes due 2008,
Series A and Series B (the "Notes");

            WHEREAS, the Original Indenture was amended by a certain First
Supplemental Indenture dated as of January 15, 1999 among the Company, the
Guarantors named therein and the Trustee (the Original Indenture, as so amended,
the "Indenture");

            WHEREAS, Mineral Resource Technologies, LLC, a Guarantor under the
Indenture, was merged with and into MRT Management Corporation ("MMC") and MMC
changed its name to Mineral Resource Technologies, Inc. and remains a Guarantor
and Restricted Subsidiary;

            WHEREAS, The Prince Manufacturing Company, a Pennsylvania
corporation, was merged with and into The Prince Manufacturing Company, an
Illinois corporation ("Prince Illinois"), and Prince Illinois remains as a
Gurarantor and Restricted Subsidiary;

            WHEREAS, in accordance with the Indenture, the Company has obtained
the written consent of the Holders of at least a majority in aggregate principal
amount of the outstanding Notes to certain amendments (the "Amendments") to the
Indenture as set forth in this Second Supplemental Indenture;

            WHEREAS, pursuant to Sections 9.02 and 12.16 of the Indenture, the
Company and the Guarantors, when authorized by resolution of their respective
Boards of Directors, and the Trustee, together, with the written consent of the
Holders of at least a majority in aggregate principal amount of the Notes then
outstanding, are authorized to amend or supplement the Indenture as set forth in
this Second Supplemental Indenture;

            WHEREAS, the Company, each of the Guarantors and the Trustee desire
and have agreed to execute and deliver this Second Supplemental Indenture as
herein provided and all conditions and requirements necessary to make this
Second Supplemental Indenture a valid, binding and legal instrument in
accordance with its terms have been performed and fulfilled and the execution
and delivery hereof have been in all respects duly authorized by all necessary
parties.
<PAGE>
            NOW, THEREFORE, for and in consideration of the premises contained
herein, it is mutually covenanted and agreed for the benefit of all Holders of
the Notes as follows:

            Section 1. Section 6.01 (Events of Default) of the Indenture is
hereby amended as follows:

            (a) Section 6.01 (iii). Section 6.01 (iii) of the Indenture is
      amended by adding after the word "Notes" and before the semicolon the
      following: ", provided that if the inclusion of Odda Holdings SA and Odda
      Smeltaverk SA in any such covenant, agreement or warranty in the term
      'Restricted Subsidiary' would result in such failure, then the term
      'Restricted Subsidiary' shall exclude Odda Holdings SA and Odda Sweltaverk
      SA".

            (b) Section 6.01 (iv). Section 6.01(iv) of the Indenture is amended
      by adding the words "(other than Odda Holdings SA and Odda Smeltaverk SA)"
      following the words "any Restricted Subsidiary" appearing therein.

            (c) Section 6.01(v). Section 6.01(v) of the Indenture is amended by
      adding the words "(other than Odda Holdings SA and Odda Smeltaverk SA)"
      following the words "any Restricted Subsidiary" appearing therein.

            (d) Section 6.01(vi). Section 6.01(vi) of the Indenture is amended
      by adding the words "(other than Odda Holdings SA and Odda Smeltaverk SA)"
      following the words "any Significant Subsidiary" in each place such words
      appear therein.

            (e) Section 6.01(vii). Section 6.01(vii) of the Indenture is amended
      by adding the words "(other than Odda Holdings SA and Odda Smeltaverk SA)"
      following the words "any Significant Subsidiary" in each place such words
      appear therein.

            Section 2. The Company agrees that the Trustee is permitted and
hereby authorizes the Trustee to place a notation about this Second Supplemental
Indenture on the Notes in accordance with the provisions of Section 9.05 of the
Indenture.

            Section 3. The Trustee accepts this Second Supplemental Indenture
and agrees to execute the trust created by the Indenture as hereby supplemented,
but only upon the terms and conditions set forth in the Indenture, including the
terms and provisions defining and limiting the liabilities and responsibilities
of the Trustee, which terms and provisions shall in like manner define and limit
its liabilities and responsibilities in the performance of the trust created by
the Indenture as hereby supplemented.

            Section 4. This Second Supplemental Indenture is executed and shall
be construed as an indenture supplemental to the Indenture and, as provided in
the Indenture, this Second Supplemental Indenture forms a part thereof. Except
as otherwise expressly provided for in this Second Supplemental Indenture, all
of the terms and conditions of the Indenture are hereby ratified and shall
remain unchanged and continue in full force and effect.
<PAGE>
            Section 5. The recitals contained in this Second Supplemental
Indenture shall be taken as the statements made solely by the Company and the
Guarantors, and the Trustee shall have no liability or responsibility for their
correctness, and, without limiting the generality of the foregoing, the Trustee
shall not be responsible in any manner whatsoever for or with respect to any of
(i) the validity or sufficiency of this Second Supplemental Indenture or any of
the terms or provisions hereof, (ii) the proper authorization hereof by the
Company and the Guarantors by corporate action or otherwise, (iii) the due
execution hereof by the Company and the Guarantors or (iv) the consequences
(direct or indirect and whether deliberate or inadvertent) of any amendment
herein provided for, and the Trustee makes no representation with respect to any
such matters.

            Section 6. This Second Supplemental Indenture shall become effective
upon the execution and delivery hereof by the Company, the Guarantors and the
Trustee.

            SECTION 7. THIS SECOND SUPPLEMENTAL INDENTURE SHALL BE GOVERNED BY,
AND CONSTRUED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF NEW YORK, AS APPLIED
TO CONTRACTS MADE AND PERFORMED IN THE STATE OF NEW YORK, WITHOUT GIVING EFFECT
TO APPLICABLE PRINCIPLES OF CONFLICTS OF LAW TO THE EXTENT THAT THE APPLICATION
OF THE LAW OF ANOTHER JURISDICTION WOULD BE REQUIRED THEREBY.

            Section 8. This Second Supplemental Indenture may be signed in any
number of counterparts, each of which shall be an original, with the same effect
as if the signatures thereto and hereto were upon the same instrument.

                  [REMAINDER OF PAGE INTENTIONALLY LEFT BLANK]
<PAGE>
                                   SIGNATURES

            IN WITNESS WHEREOF, the parties hereto have caused this Second
Supplemental Indenture to be duly executed, all as of the date first written
above.

                                  PHILIPP BROTHERS CHEMICALS, INC.

                                  By:    /s/ Jack C. Bendheim
                                         ---------------------------------------
                                          Name:       J. C. Bendheim
                                          Title:      President

                                  C.P. CHEMICALS, INC., as Guarantor

                                  By:    /s/ David C. Storbeck
                                         ---------------------------------------
                                          Name:       David C. Storbeck
                                          Title:      Vice President

                                  PHIBRO-TECH, INC., as Guarantor

                                  By:    /s/ David C. Storbeck
                                         ---------------------------------------
                                          Name:       David C. Storbeck
                                          Title:      Vice President

                                  MINERAL RESOURCE TECHNOLOGIES, INC.,
                                  as Guarantor

                                  By:    /s/ David C. Storbeck
                                         ---------------------------------------
                                          Name:       David C. Storbeck
                                          Title:      Vice President

                                  PRINCE AGRIPRODUCTS, INC., as Guarantor

                                  By:    /s/ David C. Storbeck
                                         ---------------------------------------
                                          Name:       David C. Storbeck
                                          Title:      Vice President
<PAGE>
                                  PHIBROCHEM, INC., as Guarantor

                                  By:    /s/ David C. Storbeck
                                         ---------------------------------------
                                          Name:       David C. Storbeck
                                          Title:      Vice President

                                  PHIBROCHEMICALS, INC., as Guarantor

                                  By:    /s/ David C. Storbeck
                                         ---------------------------------------
                                          Name:       David C. Storbeck
                                          Title:      Vice President

                                  WESTERN MAGNESIUM CORP., as Guarantor

                                  By:    /s/ David C. Storbeck
                                         ---------------------------------------
                                          Name:       David C. Storbeck
                                          Title:      Vice President

                                  THE PRINCE MANUFACTURING COMPANY,
                                  as Guarantor

                                  By:    /s/ David C. Storbeck
                                         ---------------------------------------
                                         Name:       David C. Storbeck
                                          Title:      Vice President

                                  JPMORGAN CHASE BANK, as Trustee

                                  By:    /s/ Gerald L. Hill
                                         ---------------------------------------
                                          Name:       Gerald L. Hill
                                          Title:      Authorized Officer

Source: [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00056-of-00352.parquet"}, [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00056-of-00352.parquet"}]]