<PAGE>

                                                                 Exhibit 10.1(e)


                                                                  EXECUTION COPY

                      SIXTH AMENDMENT TO CREDIT AGREEMENT

         THIS SIXTH AMENDMENT TO CREDIT AGREEMENT, dated as of November 13, 2003
(this "Amendment"), is among STEEL DYNAMICS, INC. (the "Borrower"), the Lenders
(as defined below) signatories hereto, JPMORGAN CHASE BANK, as administrative
agent for the Lenders (in such capacity, the "Administrative Agent"), GENERAL
ELECTRIC CAPITAL CORPORATION, as Documentation Agent, and MORGAN STANLEY SENIOR
FUNDING, INC., as Arranger and Syndication Agent.

                            W I T N E S S E T H:

         WHEREAS, the Borrower, certain financial institutions and other Persons
(such capitalized term and other capitalized terms used in these recitals to
have the meanings set forth or defined by reference in Part I below) from time
to time parties thereto (collectively, the "Lenders"), JPMorgan Chase Bank, as
Collateral Agent, the Administrative Agent, General Electric Capital
Corporation, as Documentation Agent, and Morgan Stanley Senior Funding, Inc., as
Arranger and Syndication Agent, are parties to the Credit Agreement, dated as of
March 26, 2002, as amended by the First Amendment to the Credit Agreement, dated
as of August 6, 2002, as waived by the Letter Waiver, dated as of October 6,
2002, as amended by the Second Amendment to the Credit Agreement, dated as of
December 16, 2002, as amended by the Third Amendment to the Credit Agreement,
dated as of January 23, 2003, as amended by the Fourth Amendment to the Credit
Agreement, dated as of February 20, 2003, and as amended by the Fifth Amendment
to the Credit Agreement, dated as of August 7, 2003 (such Credit Agreement, as
so amended and waived, the "Existing Credit Agreement");

         WHEREAS, the Borrower has requested that the Lenders amend the Existing
Credit Agreement as set forth below; and

         WHEREAS, the Lenders have agreed, subject to the terms and conditions
hereinafter set forth, to amend the Existing Credit Agreement in certain
respects (the Existing Credit Agreement, as so amended or otherwise modified by
this Amendment, being referred to as the "Credit Agreement");

         NOW, THEREFORE, in consideration of the premises and for other good and
valuable consideration (the receipt and sufficiency of which is hereby
acknowledged), the parties hereto hereby agree as follows:

                                     PART I
                                  DEFINITIONS

         SUBPART 1.1. Certain Definitions. The following terms (whether or not
underscored) when used in this Amendment shall have the following meanings (such
meanings to be equally applicable to the singular and plural forms thereof):

         "Administrative Agent" is defined in the preamble.


<PAGE>

         "Amendment" is defined in the preamble.

         "Borrower" is defined in the preamble.

         "Credit Agreement" is defined in the third recital.

         "Existing Credit Agreement" is defined in the first recital.

         "Sixth Amendment Effective Date" is defined in Subpart 3.1.

         "Lenders" is defined in the first recital.

         SUBPART 1.2. Other Definitions. Terms for which meanings are provided
in the Existing Credit Agreement are, unless otherwise defined herein or the
context otherwise requires, used in this Amendment with such meanings.

                                    PART II
                                   AMENDMENTS

         Effective on (and subject to the occurrence of) the Sixth Amendment
Effective Date, the Existing Credit Agreement is hereby amended in accordance
with this Part; except as so amended or otherwise modified by this Amendment,
the Existing Credit Agreement and the Loan Documents shall continue in full
force and effect in accordance with their terms.

         SUBPART 2.1. Amendment to Article I. Article I of the Existing Credit
Agreement is hereby amended in accordance with Subpart 2.1.1.

                  SUBPART 2.1.1. Article I is hereby amended by inserting the
         following new definitions therein in the appropriate alphabetical
         order:

                           "Dealer" means a dealer of U.S. government securities
                  reasonably satisfactory to the Administrative Agent and the
                  Arranger from which the Borrower shall borrow the Original
                  Bond pursuant to the Repurchase Agreement.

                           "Original Bond" means a U.S. Treasury Bond with a
                  face value of up to $65,000,000, borrowed by the Borrower
                  pursuant to the Repurchase Agreement.

                           "Repurchase Agreement" means an agreement reasonably
                  satisfactory to the Arranger and the Administrative Agent
                  pursuant to which the Borrower shall borrow the Original Bond
                  from the Dealer, with the obligation to return the Substitute
                  Bond at the conclusion of such agreement no later than the day
                  that is 365 days after the date of the Repurchase Agreement.

                           "Reverse Repurchase Agreement" means an agreement
                  between the Borrower and the Dealer reasonably satisfactory to
                  the Arranger and the Administrative Agent pursuant to which
                  the Borrower shall invest the proceeds of the Short Bond Sale.


                                        2

<PAGE>

                           "Short Bond Sale" means the short sale of the
                  Original Bond by the Borrower at fair market value.

                           "Short Bond Transaction" means the Short Bond Sale
                  and the transactions contemplated by the Repurchase Agreement
                  and the Reverse Repurchase Agreement.

                           "Sixth Amendment" means the Sixth Amendment, dated as
                  of November 13, 2003, to this Agreement among the Borrower,
                  the Administrative Agent, Morgan Stanley Senior Funding, Inc.
                  and the Lenders parties thereto.

                           "Sixth Amendment Effective Date" is defined in
                  Subpart 3.1 of the Sixth Amendment.

                           "Substitute Bond" means the U.S. Treasury Bond which
                  the Borrower intends to purchase to return to the Dealer to
                  satisfy the requirements of the Repurchase Agreement.

         SUBPART 2.2. Amendment to Article II. Article II of the Existing Credit
Agreement is hereby amended in accordance with Subparts 2.2.1 and 2.2.2.

                  SUBPART 2.2.1. Section 2.06(b)(ii) of the Existing Credit
         Agreement is hereby amended by adding the following proviso immediately
         after the first proviso therein:

                           "provided, further, however, that the Borrower shall
                  also not be required to make any such prepayment and deposit
                  with respect to Net Cash Proceeds realized from any sale of
                  assets permitted under sub-clause (vii) of Section 5.02(e)."

                  SUBPART 2.2.2. Section 2.06(b)(iii) of the Existing Credit
         Agreement is hereby amended by adding the following proviso immediately
         before the period at the end of the first sentence thereof:

                           "provided, however, that on the date of receipt of
                  the Net Cash Proceeds from the issuance of Debt permitted
                  under clause (i)(E) of Section 5.02(b), the Borrower shall
                  prepay an aggregate principal amount of the Advances
                  comprising part of the same Borrowings and deposit an amount
                  in the L/C Cash Collateral Account in accordance with clause
                  (viii) below in an amount equal to the lesser of (A) 50% of
                  the amount of such Net Cash Proceeds, or (B) $50,000,000;
                  provided, further, that the remaining balance of such Net Cash
                  Proceeds arising from the issuance of Debt permitted under
                  clause (i)(E) of Section 5.02(b) shall be applied from time to
                  time for the purpose of prefunding certain permitted Capital
                  Expenditures."

         SUBPART 2.3. Amendment to Article V. Article V of the Existing Credit
Agreement is hereby amended in accordance with Subparts 2.3.1 through 2.3.12.


                                        3
<PAGE>

                  SUBPART 2.3.1. Section 5.01(p) of the Existing Credit
         Agreement is hereby amended by (a) deleting the figure "50%" contained
         therein and (b) inserting the figure "40%" in replacement therefor.
         SUBPART 2.3.2. Section 5.02(a) of the Existing Credit Agreement is
         hereby amended by inserting at the end thereof a new sub-clause (vi) to
         read as follows: "(vi) Liens on (and only on) rights arising under the
         Reverse Repurchase Agreement securing obligations under (and only
         obligations under) the Repurchase Agreement."

                  SUBPART 2.3.3. Section 5.02(a) of the Existing Credit
         Agreement is hereby further amended by (a) deleting "and" at the end of
         sub-clause (iv) thereof, (b) deleting the punctuation mark "." at the
         end of sub-clause (v) thereof and inserting the punctuation mark ";" in
         replacement therefor and (c) inserting "and" immediately after the
         punctuation mark ";" at the end of sub-clause (v) thereof.

                  SUBPART 2.3.4. Section 5.02(b)(i) of the Existing Credit
         Agreement is hereby amended by inserting at the end thereof the
         following new sub-clause (G):

                           "(G) Debt incurred pursuant to the Repurchase
                  Agreement in an amount not to exceed $65,000,000."

                  SUBPART 2.3.5. Section 5.02(b)(i) of the Existing Credit
         Agreement is hereby further amended by (a) deleting "and" at the end of
         sub-clause (E) thereof, (b) deleting the punctuation mark "." at the
         end of sub-clause (F) thereof and inserting the punctuation mark ";" in
         replacement therefor and (c) inserting "and" immediately after the
         punctuation mark ";" at the end of sub-clause (F) thereof.

                  SUBPART 2.3.6. Section 5.02(e) of the Existing Credit
         Agreement is hereby amended by inserting immediately before the proviso
         at the end thereof the following new sub-clause (vii):

                           "(vii) the sale of the Original Bond for fair market
                  value in connection with the Short Bond Transaction;"

                  SUBPART 2.3.7. Section 5.02(e) of the Existing Credit
         Agreement is hereby further amended by (a) deleting "and" at the end of
         sub-clause (iv) thereof, (b) deleting the punctuation mark "." at the
         end of sub-clause (vi) thereof and inserting the punctuation mark ";"
         in replacement therefor, and (c) inserting "and" immediately after the
         punctuation mark ";" at the end of sub-clause (vi) thereof.

                  SUBPART 2.3.8. Section 5.02(f) of the Existing Credit
         Agreement is hereby amended by inserting at the end thereof the
         following new sub-clause (xv):

                           "(xv) Investments in certain U.S. Treasury Bonds in
                  connection with the Short Bond Transaction."


                                       4
<PAGE>

                  SUBPART 2.3.9. Section 5.02(f) of the Existing Credit
         Agreement is hereby further amended by (a) deleting "and" at the end of
         sub-clause (xiii) thereof, (b) deleting the punctuation mark "." at the
         end of sub-clause (xiv) thereof and inserting the punctuation mark ";"
         in replacement therefor and (c) inserting "and" immediately after the
         punctuation mark ";" at the end of sub-clause (xiv) thereof.

                  SUBPART 2.3.10. Section 5.02(o) of the Existing Credit
         Agreement is hereby amended by inserting the following phrase at the
         end thereof

                           "; it being understood, however, that
                  notwithstanding the provisions of this subsection, the
                  Borrower may (i) engage in the Short Bond Transaction and (ii)
                  enter into agreements resulting in the conversion of
                  outstanding Hedge Agreements from fixed rate Hedge Agreements
                  to floating rate Hedge Agreements so long as the provisions of
                  Section 5.01(p) and the other requirements of this Agreement
                  are complied with."

                  SUBPART 2.3.11. Section 5.04 of the Existing Credit Agreement
         is hereby amended by deleting the table set forth in clause (a) thereof
         in its entirety and inserting in replacement therefor the table set
         forth below:

         --------------------------------------------------------------
         Quarter Ending                                         Ratio
         --------------------------------------------------------------
         March 31, 2002                                       6.50:1.00
         June 30, 2002                                        5.75:1.00
         September 30, 2002                                   4.50:1.00
         December 31, 2002                                    4.00:1.00

         March 31, 2003                                       4.00:1.00
         June 30, 2003                                        3.75:1.00
         September 30, 2003                                   3.75:1.00
         December 31, 2003                                    3.75:1.00

         March 31, 2004                                       3.75:1.00

         For each fiscal quarter thereafter                   3.50:1.00
         --------------------------------------------------------------

                  SUBPART 2.3.12. Section 5.04 of the Existing Credit Agreement
         is hereby further amended by deleting the table set forth in clause (c)
         thereof in its entirety and inserting in replacement therefor the table
         set forth below:


                                       5
<PAGE>


         --------------------------------------------------------------
         Quarter Ending                                         Ratio
         --------------------------------------------------------------
         September 30, 2002                                   1.50:1.00
         December 31, 2002                                    1.50:1.00



         March 31, 2003                                       1.50:1.00
         June 30, 2003                                        1.50:1.00
         September 30, 2003                                   1.50:1.00
         December 31, 2003                                    1.50:1.00



         March 31, 2004                                       1.50:1.00

         For each fiscal quarter thereafter                   2.00:1.00
         --------------------------------------------------------------


         SUBPART 2.4. Amendment to Article VIII. Article VIII of the Existing
Credit Agreement is hereby amended in accordance with Subpart 2.4.1.

                  SUBPART 2.4.1. Section 8.10 of the Existing Credit Agreement
         is hereby amended by inserting the following sentence at the end
         thereof:

                  "Notwithstanding anything herein to the contrary,
         "Confidential Information" shall not include, and the Administrative
         Agent and each Lender (and their respective employees, directors,
         representatives and agents) may disclose, without limitation of any
         kind, any information with respect to the "tax treatment" and "tax
         structure" (in each case, within the meaning of Treasury Regulation
         Section 1.6011-4) of the transactions contemplated or permitted hereby
         and all materials of any kind (including opinions or other tax
         analyses) that are provided to the Administrative Agent or such Lender
         relating to such tax treatment and tax structure; provided that (a)
         with respect to any document or similar item that in either case
         contains information concerning the tax treatment or tax structure of
         the transaction as well as other information, this sentence shall only
         apply to such portions of the document or similar item that relate to
         the tax treatment or tax structure of the Advances and transactions
         contemplated hereby and (b) such "tax treatment" and "tax structure"
         shall not include the identity of any existing or future party to this
         Agreement, any specific market pricing information, including fees,
         expenses, rates or payments or any disclosure that would create a risk
         of violating securities laws.

                  Based on current information and circumstances, neither the
         Borrower nor any of its Subsidiaries expects to specifically identify
         one or more of the Advances under this Agreement or the Short Bond
         Transaction as a "reportable transaction" on IRS Form 8886 filed with
         its US tax returns for purposes of Sections 6011, 6111 or 6112 of the
         Internal Revenue Code or the Treasury Regulations promulgated
         thereunder.

                  The Borrower will notify the Administrative Agent and the
         Arranger promptly in the event that the Borrower or any of its
         Subsidiaries specifically identifies any of the Advances under this
         Agreement or the Short Bond Transaction as a "reportable transaction"
         on IRS Form 8886 filed with its US tax returns for purposes of Sections
         6011, 6111 or 6112 of the Internal Revenue Code or the Treasury
         Regulations promulgated thereunder."


                                       6
<PAGE>

                                    PART III
                          CONDITIONS TO EFFECTIVENESS

         SUBPART 3.1. Effectiveness. This Amendment and the amendments contained
herein shall become effective on the date (the "Sixth Amendment Effective Date")
when each of the conditions set forth in this Part shall have been fulfilled to
the satisfaction of the Administrative Agent provided that such conditions are
in any event fulfilled no later than November 20, 2003.

                  SUBPART 3.1.1. Execution of Counterparts. The Administrative
         Agent and the Arranger shall have received counterparts of this
         Amendment, duly executed and delivered on behalf of the Borrower, the
         Administrative Agent and the Required Lenders.

                  SUBPART 3.1.2. CONSENT. THE Administrative Agent and the
         Arranger shall have received counterparts of a consent substantially in
         the form of Schedule I to this Sixth Amendment, duly executed by each
         of the Loan Parties (other than the Borrower).

                  SUBPART 3.1.3. Amendment Fee. The Administrative Agent shall
         have received, for the account of each Lender which shall have executed
         this Amendment before 5:00 p.m. (New York time) on November 13, 2003,
         an amendment fee in an aggregate amount equal to 0.125% of the
         aggregate amount of each such Lender's Advances and Commitments.

                  SUBPART 3.1.4. EXPENSES. THE Borrower shall have paid all
         expenses (including the fees and expenses of Shearman & Sterling)
         incurred in connection with the preparation, negotiation and execution
         of this Amendment and foregoing matters relating to the Credit
         Agreement from and after the closing thereof to the extent invoiced.

                  SUBPART 3.1.5. Legal Details, etc. All documents executed or
         submitted pursuant hereto shall be satisfactory in form and substance
         to the Administrative Agent and the Arranger and Shearman & Sterling as
         counsel. The Administrative Agent, the Arranger and counsel shall have
         received all information and such counterpart originals or such
         certified or other copies of such materials as the Administrative
         Agent, the Arranger or counsel may reasonably request, and all legal
         matters incident to the transactions contemplated by this Amendment
         shall be satisfactory to the Administrative Agent, the Arranger and
         counsel.

                                     PART IV

                      MISCELLANEOUS; REPRESENTATIONS AND COVENANTS


                       SUBPART 4.1. Continuing Effectiveness, etc. As amended
    hereby, the Credit Agreement shall remain in full force and effect and is
    hereby ratified and confirmed in all respects. After the Sixth Amendment
    Effective Date, all references in the Credit Agreement and each other Loan
    Document to the "Agreement" or "Credit Agreement", as applicable, shall
    refer to the Existing Credit Agreement, after giving effect to this
    Amendment, and this Amendment shall be a Loan Document for all purposes. The
    Borrower hereby confirms its obligations under Section 8.04 of the Credit
    Agreement to pay all fees and expenses of the Administrative Agent

                                       7
<PAGE>



and the Arranger (including reasonable fees and out-of-pocket expenses of
Shearman & Sterling) in connection with this Amendment and other ongoing
administration of the Credit Agreement as provided in Section 8.04 of the Credit
Agreement since the last invoice it received.

         SUBPART 4.2. Counterparts. This Amendment may be executed in any number
of counterparts and by the different parties on separate counterparts, and each
such counterpart shall be deemed to be an original but all such counterparts
shall together constitute one and the same Amendment.

         SUBPART 4.3. Governing Law. THIS AMENDMENT SHALL BE A CONTRACT MADE
UNDER AND GOVERNED BY THE INTERNAL LAWS OF THE STATE OF NEW YORK.

         SUBPART 4.4. Successors and Assigns. This Amendment shall be binding
upon the Borrower, the Lenders and the Agents and their respective successors
and assigns, and shall inure to their successors and assigns.

         SUBPART 4.5. Representations and Warranties. In order to induce the
Lenders to execute and deliver this Amendment, the Borrower represents and
warrants to the Agents, the Lenders and the Issuing Bank that, after giving
effect to the terms of this Amendment, the following statements are true and
correct: (a) the representations and warranties set forth in Article IV of the
Credit Agreement and in the other Loan Documents are true and correct on the
Sixth Amendment Effective Date as if made on the Sixth Amendment Effective Date
and after giving effect to the Sixth Amendment (unless stated to relate solely
to an earlier date, in which case such representations and warranties were true
and correct in all material respects as of such earlier date) and (b) no Default
has occurred and is continuing.

         SUBPART 4.6. Modifications to this Amendment. This Amendment can be
amended, waived or otherwise modified by instrument in writing signed by the
Borrower and the Required Lenders.

                  [REMAINDER OF PAGE INTENTIONALLY LEFT BLANK.]

                                        8

<PAGE>


         IN WITNESS WHEREOF, the parties hereto have caused this Amendment to be
executed and delivered by their respective authorized officers as of the day and
year first above written,


                                   STEEL DYNAMICS, INC.

                                   BY: /s/ Theresa E. Wagler
                                      --------------------------------------
                                      Name:  Theresa E. Wagler
                                      Title: Corporate Controller &
                                             Assistant Secretary


<PAGE>



                           JPMORGAN CHASE BANK,
                           As Administrative Agent and Collateral Agent and
                              as a Lender


                                   BY: /s/ James M. Ramage
                                      --------------------------------------
                                      Name:  James M. Ramage
                                      Title: Manager Director









<PAGE>


                              MORGAN STANLEY SENIOR FUNDING, INC.,
                              as Arranger and Syndication Agent and as a Lender


                              By: /s/ Jaap L. Tonckens
                                 -------------------------------------------
                                 Nane:  Jaap L. Tonckens
                                 Title: Vice President
                                        Morgan Stanley Senior Funding


<PAGE>


                              GENERAL ELECTRIC CAPITAL
                                   CORPORATION,
                              as Documentation Agent and as a Lender

                              By: /s/ John L. Dale
                                 ------------------------------------
                                 Name:  John L. Dale
                                 Title: Duly Authorized Signatory


<PAGE>


                              AMCO INSURANCE COMPANY



                              By: Thomas S. Leggett
                                  -----------------------------
                                  Name:  THOMAS S. LEGGETT
                                  Title: ASSOCIATE VICE PRESIDENT
                                         PUBLIC BONDS


<PAGE>



                              APEX (IDM) CDO I, LTD.


                              By: David L. Babson & Company Inc.
                                  as Collateral Manager


                              By: /s/ Glenn P Duffy
                                  -------------------------------
                                  Name: Glenn P Duffy, CFA
                                  Title: Managing Director


<PAGE>



                              ARCHIMEDES FUNDING IV (CAYMAN), LTD.

                              BY: ING Capital Advisors LLC,
                                  as Collateral Manager


                              By:  /s/ Gordon R. Cook
                                  -------------------------------
                                  Name:  Gordon R. Cook
                                  Title: Managing Director


<PAGE>


                              ARES LEVERAGED INVESTMENT FUND II,
                                  L.P.

                              BY: ARES Management II, L.P.
                                    Its General Partner


                              By:   /s/ Seth J. Brufsky
                                  -------------------------------
                                  Name:  Seth J. Brufsky
                                  Title: Vice President



<PAGE>



                              ARES III CLO Ltd

                              BY: ARES CLO Management LLC,
                                  Investment Manager


                              By:   /s/ Seth J. Brufsky
                                  -------------------------------
                                  Name:  Seth J. Browsky
                                  Title: Vice President



<PAGE>




                              ARES IV CLO Ltd.

                              BY: Ares CLO Management IV, L.P.,
                                  Investment Manager

                              By: Ares CLO GP IV, LLC,
                                  Its Managing Member


                              By:   /s/ Seth J. Brufsky
                                  -------------------------------
                                  Name:  Seth J. Brufsky
                                  Title: Vice President




<PAGE>



                              ARES V CLO Ltd.

                              BY: Ares CLO Management V, L.P.,
                                    Investment Manager

                              By: Ares CLO GP IV, LLC,
                                    Its Managing Member


                              By:   /s/ Seth J. Brufsky
                                  -------------------------------
                                  Name:  Seth J. Brufsky
                                  Title: Vice President



<PAGE>




                              ARES VI CLO Ltd.

                              BY: Ares CLO Management VI, L.P.,
                                    Investment Manager

                              By: Ares CLO GP VI, LLC,
                                    Its Managing Member


                              By:   /s/ Seth J. Brufsky
                                  -------------------------------
                                  Name:  Seth J. Brufsky
                                  Title: Vice President




<PAGE>




                              ARES VII CLO Ltd.

                              BY: Ares CLO Management VII, L.P.,
                                    Investment Manager

                              By: Ares CLO GP VII, LLC,
                                    Its Managing Member


                              By:   /s/ Seth J. Brufsky
                                  -------------------------------
                                  Name:  Seth J. Brufsky
                                  Title: Vice President




<PAGE>


                              ATRIUM CLO


                              By: /s/ David H. Lerner
                                 -------------------------------
                                 Title:

                                        DAVID H. LERNER
                                     AUTHORIZED SIGNATORY





<PAGE>


                              AURUM CLO 2002-1 LTD.

                              By: Columbia Management Advisors, Inc.,
                                    As Investment Manager


                              By:   /s/ James R. Follows
                                  -------------------------------
                                  Name:  James R. Follows
                                  Title: Sr. Vice Presidient &
                                         Portfolio Manager






<PAGE>



                              BABSON CLO LTD. 2003-1

                              By: David L. Babson & Company Inc. as Manager


                              By:   /s/ Glenn P Duffy
                                  -------------------------------
                                  Name:  Glenn P Duffy, CFA
                                  Title: Managing Director






<PAGE>



                              BALLYROCK CDO I LIMITED

                              By: BALLYROCK INVESTMENT ADVISORS
                                  LLC, as Collateral Manager



                              By:   /s/ Lisa Rymut
                                  -------------------------------
                                  Name:  Lisa Rymut
                                  Title: Assistant Treasurer




<PAGE>



                              BALLYROCK CLO II LIMITED

                              By: BALLYROCK INVESTMENT ADVISORS
                                  LLC, as Collateral Manager



                              By:   /s/ Lisa Rymut
                                  -------------------------------
                                  Name:  Lisa Rymut
                                  Title: Assistant Treasurer





<PAGE>



                              BIG SKY SENIOR LOAN FUND, LTD.

                              By: Eaton Vance Management, as Investment
                                  Manager



                              By:   /s/ Michael B. Botthof
                                  -------------------------------
                                  Name:  Michael B. Botthof
                                  Title: President



<PAGE>



                              BILL AND MELINDA GATES FOUNDATION

                              By: David L. Babson & Company Inc. as
                                  Investment Adviser



                              By:   /s/ Glenn P Duffy
                                  -------------------------------
                                  Name:  Glenn P Duffy
                                  Title: Managing Director




<PAGE>



                              Sankaty Advisors, LLC, as Collateral
                              Manager for Brant Point II CBO
                              2000-1 LTD., as Term Lender


                              By:   /s/ Diane J. Exter
                                  -------------------------------
                                  Name:  Diane J. Exter
                                  Title: Managing Director
                                         Portfolio Manager



<PAGE>




                              CALLIDUS DEBT PARTNERS CLO
                                   FUND II, LTD.


                              By:   /s/ Mavis Taintor
                                  -------------------------------
                                  Name:  Mavis Taintor
                                  Title: Managing Director





<PAGE>



                              Sankaty Advisors, LLC as Collateral
                              Manager for Castle Hill I - INGOTS,
                              Ltd., as Term Lender


                              By:   /s/ Diane J. Exter
                                  -------------------------------
                                  Name:  Diane J. Exter
                                  Title: Managing Director
                                         Portfolio Manager




<PAGE>




                              Sankaty Advisors, LLC, as Collateral
                              Manager for Castle Hill II - INGOTS,
                              Ltd., as Term Lender


                              By:   /s/ Diane J. Exter
                                  -------------------------------
                                  Name:  Diane J. Exter
                                  Title: Managing Director
                                         Portfolio Manager



<PAGE>




                              Sankaty Advisors, LLC as Collateral
                              Manager for Castle Hill III CLO,
                              Limited, as Term Lender


                              By:   /s/ Diane J. Exter
                                  -------------------------------
                                  Name:  Diane J. Exter
                                  Title: Managing Director
                                         Portfolio Manager





<PAGE>





                                        CLYDESDALE CLO 2001-1, LTD.


                                        By:   /s/ Richard W. Stewart
                                            -------------------------------
                                            Name:  Richard W. Stewart
                                            Title: Managing Director


        NOMURA CORPORATE RESEARCH
        AND ASSET MANAGEMENT INC.
                  AS
            COLLATMAL MANAM


<PAGE>



                              COLUMBIA FLOATING RATE LIMITED
                                  LIABILITY COMPANY

                              By:   Columbia Management Advisors, Inc.
                                      As Advisor


                              By:   /s/ James R. Fellows
                                  -------------------------------
                                  Name:  James R. Fellows
                                  Title: Sr. Vice President &
                                         Portfolio Director




<PAGE>




                              CSAM Funding I


                              By:   /s/ David H. Lerner
                                  -------------------------------
                                  Name:  David H. Lerner
                                  Title: Authorized Signatory
<PAGE>





                              CSAM Funding II


                              By:   /s/ David H. Lerner
                                  -------------------------------
                                  Name:  David H. Lerner
                                  Title: Authorized Signatory


<PAGE>





                              EATON VANCE CDO II

                              By:   Eaton Vance Management, as Investment
                                    Manager



                              By:   /s/ Michael B. Botthof
                                  -------------------------------
                                  Name:  Michael B. Botthof
                                  Title: President




<PAGE>



                              EATON VANCE INSTITUTIONAL SENIOR
                                    LOAN FUND

                              By:   Eaton Vance Management, as Investment
                                    Manager



                              By:   /s/ Michael B. Botthof
                                  -------------------------------
                                  Name:  Michael B. Botthof
                                  Title: President



<PAGE>



                           ELC (CAYMAN) LTD.

                           By:   David L. Babson & Company Inc., as Collateral
                                 Manager



                           By:   /s/ Glenn P Duffy
                               -------------------------------
                               Name:  Glenn P Duffy
                               Title: Managing Director


<PAGE>



                           ELC (CAYMAN) LTD. 2000-1

                           By:   David L. Babson & Company Inc., as Collateral
                                 Manager



                           By:   /s/ Glenn P Duffy
                               -------------------------------
                               Name:  Glenn P Duffy, CFA
                               Title: Managing Director


<PAGE>



                           FIDELITY ADVISOR SERIES II HIF


                           By:   /s/ John H. Costello
                               -------------------------------
                               Name:  John H. Costello
                               Title: Assistant Treasurer


<PAGE>




                           FIFTH THIRD BANK


                           By:   /s/ David W. O'Neal
                               -------------------------------
                               Name:  David W. O'Neal
                               Title: Vice President



<PAGE>





                           FIRST NATIONAL BANK AND TRUST
                               COMPANY


                           By:   /s/ Jason L. Etter
                               -------------------------------
                               Name:  Jason L. Etter
                               Title: Assistant Vice President



<PAGE>




                           FRANKLIN CLO II, LIMITED


                           By:   /s/ Richard D'Addario
                               -------------------------------
                               Name:  Richard D'Addario
                               Title: Senior Vice President



<PAGE>




                           FRANKLIN CLO III, LIMITED


                           By:   /s/ Richard D'Addario
                               -------------------------------
                               Name:  Richard D'Addario
                               Title: Senior Vice President


<PAGE>




                           FRANKLIN FLOATING RATE MASTER
                                SERIES


                           By:   /s/ Richard D'Addario
                               -------------------------------
                               Name:  Richard D'Addario
                               Title: Vice President





<PAGE>




                           GOLDENTREE LOAN OPPORTUNITIES I,
                           LIMITED

                           By: GoldenTree Asset Management, LP


                           By:   /s/ Thomas O'Shea
                               -------------------------------
                               Name:  Thomas O'Shea
                               Title: Portfolio Manager





<PAGE>




                           GRAYSON AND CO

                           By: Boston Management and Research
                               as Investment Advisor


                           By:   /s/ Michael B. Botthof
                               -------------------------------
                               Name:  Michael B. Botthof
                               Title: Vice President






<PAGE>





                              Sankaty Advisors, LLC as Collateral
                              Manager for Great Point CLO 1999-1,
                              LTD., as Term Lender


                              By:   /s/ Diane J. Exter
                                  -------------------------------
                                  Name:  Diane J. Exter
                                  Title: Managing Director
                                         Portfolio Manager




<PAGE>




                              HARBOUR TOWN FUNDING LLC


                              By:   /s/ Diane M. Himes
                                  -------------------------------
                                  Name:  Diane M. Himes
                                  Title: Assistant Vice President



<PAGE>




                              HARBOURVIEW CLO IV, LTD.


                              By:   /s/ Lisa Chaffee
                                  -------------------------------
                                  Name:  Lisa Chaffee
                                  Title: Manager



<PAGE>





                              HARBOURVIEW CLO V, LTD.


                              By:   /s/ Lisa Chaffee
                                  -------------------------------
                                  Name:  Lisa Chaffee
                                  Title: Manager





<PAGE>



                              HARRIS TRUST AND SAVINGS BANK


                              By:   /s/ Thad D. Rasche
                                  -------------------------------
                                  Name:  Thad D. Rasche
                                  Title: Vice President






<PAGE>



                              ING-ORYX CLO, LTD.

                              By:   ING Capital Advisors LLC,
                                    as Collateral Manager



                              By:   /s/ Gordon R. Cook
                                  -------------------------------
                                  Name:  Gordon R. Cook
                                  Title: Managing Director



<PAGE>



                        MAPLEWOOD (CAYMAN) LIMITED

                        By:   David L. Babson & Company Inc. under delegated
                              authority from Massachusetts Mutual Life
                              Insurance Company as Investment Manager


                        By:   /s/ Glenn Duffy
                            -------------------------------
                            Name:  Glenn Duffy, CFA
                            Title: Managing Director




<PAGE>



                        MASSACHUSETTS MUTUAL LIFE
                              INSURANCE

                        By:   David L. Babson & Company Inc. as
                              Investment Adviser


                        By:   /s/ Glenn P. Duffy
                            -------------------------------
                            Name:  Glenn P. Duffy, CFA
                            Title: Managing Director




<PAGE>



                        MONUMENT CAPITAL LTD.

                        By:   Alliance Capital Management L.P., as
                              Investment Manager


                        By:   Alliance Capital Management Corporation, as
                              General Partner


                        By:   /s/ Sverker Johansson
                            -------------------------------
                            Name:  Sverker Johansson
                            Title: Vice President


<PAGE>



                        MORGAN STANLEY BANK


                        By:   /s/ Jaap L. Tonckens
                            -------------------------------
                            Name:  Jaap L. Tonckens
                            Title: Vice President
                                   Morgan Stanley Bank



<PAGE>



                        NATIONAL CITY BANK OF INDIANA


                        By:   /s/ Lawrence J. Mayers
                            -------------------------------
                            Name:  Jaap L. Tonckens
                            Title: Senior Vice President




<PAGE>



                        NATIONWIDE MUTUAL FIRE INSURANCE
                             COMPANY


                        By:   /s/ Thomas S. Leggett
                            -------------------------------
                            Name:  Thomas S. Leggett
                            Title: Assistant Vice President
                                   Public Bonds



<PAGE>




                        NEMEAN CLO, LTD.

                        By:  ING Capital Advisors LLC,
                             as Investment Manager


                        By:   /s/ Gordon R. Cook
                            -------------------------------
                            Name:  Gordon R. Cook
                            Title: Managing Director



<PAGE>





                        NEW ALLIANCE GLOBAL CDO, LIMITED

                        By:  Alliance Capital Management L.P.,
                             as Sub-Advisor

                        By:  Alliance Capital Management Corporation,
                             as General Partner


                        By:   /s/ Sverker Johansson
                            -------------------------------
                            Name:  Sverker Johansson
                            Title: Vice President




<PAGE>




                        NEWTON CDO LTD.

                        By:  David L. Babson & Company Inc. as
                             Investment Manager


                        By:   /s/ Glenn P. Duffy
                            -------------------------------
                            Name:  Glenn P. Duffy, CFA
                            Title: Manager Director



<PAGE>



                                          NOMURA BOND & LOAN FUND


                                          By:   /s/ Richard W. Stewart
                                              -------------------------------
                                              Name:  Richard W. Stewart
                                              Title: Manager Director

By: UFJ Trust Bank Limited
    as Trustee
By: Nomura Corporate Research and
    Asset Management Inc.
    Attorney in Fact




<PAGE>



                        NYLIM HIGH YIELD CDO 2001 LTD.

                        By:  New York Life Investment Management LLC,
                        As Investment Manager and Attorney-In-Fact




                        By:   /s/ F. David Melka
                            -------------------------------
                            Name:  F. David Melka
                            Title: Vice President



<PAGE>


                        PNC BANK


                        By:   /s/ Peter A. Yanief
                            -------------------------------
                            Name:  Peter A. Yanief
                            Title: Assistant Vice President



<PAGE>



                        PRINCIPAL LIFE INSURANCE COMPANY

                        By: Principal Global Investors, LLC
                            a Delaware limited liability company,
                            its authorized signatory



                        By:   /s/ Jon C. Henry
                              ------------------------------------
                        Its:  Jon C. Henry, Counsel
                              ------------------------------------


                        By:   /s/ Elizabeth D. Swanson
                              ------------------------------------
                        Its:  Elizabeth D. Swanson, Counsel
                              ------------------------------------



<PAGE>




                        RACE POINT CLO, LIMITED

                        By:   Sankaty Advisors, LLC as Collateral Manager



                        By:   /s/ Diane J. Exter
                            -------------------------------
                            Name:  Diane J. Exter
                            Title: Manager Director
                                   Portfolio Manager




<PAGE>



                        RACE POINT II CLO, LIMITED

                        By:   Sankaty Advisors, LLC as Collateral Manager



                        By:   /s/ Diane J. Exter
                            -------------------------------
                            Name:  Diane J. Exter
                            Title: Manager Director
                                   Portfolio Manager



<PAGE>




                        SECURITY BENEFIT LIFE INSURANCE COMPANY


                        By:   /s/ Steve Columbano
                            -------------------------------
                            Name:  Steve Columbano
                            Title: Vice President



<PAGE>





                        SEQUILS-ING I (HBDGM), LTD.

                        By:  ING Capital Advisors LLC,
                             as Collateral Manager


                        By:   /s/ Gordon R. Cook
                            -------------------------------
                            Name:  Gordon R. Cook
                            Title: Managr Director



<PAGE>




                        SRF 2000, INC.


                        By:   /s/ Diana M. Himes
                            -------------------------------
                            Name:  Diana M. Himes
                            Title: Assistant Vice President



<PAGE>




                        SUFFIELD CLO, LIMITED

                        By:  David L. Babson & Company Inc.
                             as Collateral Manager


                        By:   /s/ Glenn P. Duffy
                            -------------------------------
                            Name:  Glenn P. Duffy, CFA
                            Title: Managing Director



<PAGE>



                        TRYON CLO LTD. 2000-1

                        By:  David L. Babson & Company Inc.
                             as Collateral Manager


                        By:   /s/ Glenn P. Duffy
                            -------------------------------
                            Name:  Glenn P. Duffy, CFA
                            Title: Managing Director




<PAGE>



                        WILBRAHAM CBO, LIMITED

                        By:  David L. Babson & Company Inc. as
                             Investment Manager


                        By:   /s/ Glenn P. Duffy
                            -------------------------------
                            Name:  Glenn P. Duffy, CFA
                            Title: Managing Director



<PAGE>



                          SCHEDULE I TO SIXTH AMENDMENT

                                     CONSENT

                          Dated as of November 13, 2003


                    Each of the undersigned, as Guarantor under the Subsidiary
  Guaranty and Grantor under the Security Agreement, for the benefit of the
  Administrative Agent and the benefit of the Lenders parties to the Credit
  Agreement referred to in the foregoing Sixth Amendment, hereby consents to
  such Sixth Amendment and hereby confirms and agrees that (a) notwithstanding
  the effectiveness of such Sixth Amendment, each of the Subsidiary Guaranty and
  Security Agreement is, and shall continue to be, in full force and effect and
  is hereby ratified and confirmed in all respects, except that, on and after
  the effectiveness of such Amendment, each reference in the Subsidiary Guaranty
  and Security Agreement to the "Credit Agreement", "thereunder", "thereof" or
  words of like import shall mean and be a reference to the Credit Agreement, as
  amended by such Sixth Amendment, and (b) the Collateral Documents to which
  such Grantor is a party and all of the Collateral described therein do, and
  shall continue to, secure the payment of all of the Secured Obligations (in
  each case, as defined therein).


                                   SDI INVESTMENT COMPANY

                                   By: /s/ Tracy L. Shellabarger
                                       -----------------------------
                                       Title: V.P. and CFO


                                   IRON DYNAMICS, INC.

                                   By: /s/ Tracy L. Shellabarger
                                       -----------------------------
                                       Title: V.P. and CFO


                                   DYNAMICS BAR PRODUCTS, LLC

                                   By: Steel Dynamics Inc., its sole member

                                   By: /s/ Tracy L. Shellabarger
                                       -----------------------------
                                       Title: V.P. and CFO


                                   STEEL DYNAMICS SALES NORTH
                                   AMERICA, INC.

                                   By: /s/ Tracy L. Shellabarger
                                       -----------------------------
                                       Title: V.P. and CFO



                                       10