Document:

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                                                                    EXHIBIT 10.3

              AMENDMENT NO. 1 TO RECEIVABLES SALE AGREEMENT (U.S.)

                  THIS AMENDMENT NO. 1 TO RECEIVABLES SALE AGREEMENT (U.S.)
(this "AMENDMENT"), effective as of April 4, 2006, is entered into by and among
Wolverine Tube, Inc., a Delaware corporation ("PARENT"), Tube Forming, LP, a
Delaware limited partnership and Small Tube Manufacturing LLC, a Delaware
limited liability company (each of the foregoing including Parent, an
"ORIGINATOR" and collectively, the "ORIGINATORS"), and DEJ 98 FINANCE, LLC, a
Delaware limited liability company ("BUYER").

                              PRELIMINARY STATEMENT

                  The Originators and the Buyer are parties to that certain
         Receivables Sale Agreement dated as of April 28, 2005, as heretofore
         amended (the "EXISTING AGREEMENT").

                  The parties wish to amend the Existing Agreement as
hereinafter set forth.

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

                  1. Definitions. Capitalized terms used and not otherwise
defined herein are used with the meanings attributed thereto (or incorporated
by reference) in the Existing Agreement.

                  2. Amendments.

                  2.1. All references in the Existing Agreement to "Blue Ridge
Asset Funding Corporation" or "Blue Ridge" are hereby replace with references to
"Variable Funding Capital Company, LLC" and "VFCC," respectively.

                  2.2. `Section 2.1(m) of the Existing Agreement is hereby
amended to delete "December 31, 2004" where it appears and to substitute in lieu
thereof "December 31, 2005."

                  2.2. Section 5.1 of the Existing Agreement is hereby amended
to add the following new clause (j) thereto:

                           (j) The "Amortization Date" (under and as defined in
         the Purchase Agreement) or the "Termination Date" (under and as defined
         in the Canadian Receivables Sale Agreement referred to in the Purchase
         Agreement) shall occur.

                  2.3. Section 7.4 of the Existing Agreement is hereby amended
and restated in its entirety to read as follows:

         Section 7.4. Confidentiality.

                   (a) Each Originator and Buyer shall maintain and shall cause
         each of its directors, officers and employees to maintain the
         confidentiality of the Fee Letters and the other confidential or
         proprietary information with respect to the Agent or any

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         Purchaser and their respective businesses obtained by such Seller
         Party in connection with the structuring, negotiating and execution of
         the transactions contemplated herein, except that such Seller Party
         and its directors, officers and employees may disclose such
         information to such Seller Party's external accountants, advisors and
         attorneys and as required by any applicable law or order of any
         judicial or administrative proceeding, PROVIDED THAT each such Person
         is informed of the confidential nature of such information and either
         agrees (or is under a professional ethical obligation) to keep such
         information confidential.

                  (b) Anything herein to the contrary notwithstanding, each
         Originator and Buyer shall hereby consents to the disclosure of any
         nonpublic information with respect to it (i) to the Agent and each of
         the Purchasers by each other, (ii) by the Agent or any Purchaser to any
         prospective or actual assignee or participant of any of them, (iii) by
         the Agent or VFCC to any rating agency, Commercial Paper dealer or
         provider of a surety, guaranty or credit or liquidity enhancement to
         any Purchaser or any entity organized for the purpose of purchasing, or
         making loans secured by, financial assets for which Wachovia (or one of
         its Affiliates) acts as the administrative agent and (iv) by the Agent
         or any Purchaser to any directors, officers, employees, outside
         accountants, advisors, credit enhancers and attorneys of any of the
         foregoing, PROVIDED THAT each such Person in this clause (iv) is
         informed of the confidential nature of such information and either
         agrees (or is under a professional ethical obligation) to keep such
         information confidential. In addition, each of the Purchasers and the
         Agent may disclose any such nonpublic information pursuant to any law,
         rule, regulation, direction, request or order of any judicial,
         administrative or regulatory authority or proceedings (whether or not
         having the force or effect of law).

                  3. Representations. Each of the Originators represents and
warrants to the Buyer and its assigns that it has duly authorized, executed and
delivered this Amendment and that the Existing Agreement, as amended hereby,
constitutes, a legal, valid and binding obligation of such Originator,
enforceable in accordance with its terms (except as enforceability may be
limited by applicable bankruptcy, insolvency, or similar laws affecting the
enforcement of creditors' rights generally or by equitable principles relating
to enforceability).

                  4. Condition Precedent. This Amendment shall become effective
as of the date first above written upon receipt by the Agent of a counterpart
hereof duly executed by each of the parties hereto.

                  5. Miscellaneous.

                  5.1. Except as expressly amended hereby, the Existing
Agreement shall remain unaltered and in full force and effect, and each of the
parties hereby ratifies and confirms the Existing Agreement and each of the
other Transaction Documents to which it is a party.

                  5.2. THIS AMENDMENT SHALL BE GOVERNED BY, AND CONSTRUED IN
ACCORDANCE WITH, THE INTERNAL LAWS OF THE STATE OF NEW YORK WITHOUT REFERENCE TO
PRINCIPLES OF CONFLICTS OF LAW.

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                  5.3. This Amendment may be executed in any number of
counterparts and by the different parties hereto in separate counterparts, each
of which when so executed shall be deemed to be an original and all of which
when taken together shall constitute one and the same Amendment. Delivery of any
executed counterpart by facsimile or electronic mail with an attached image of
such executed counterpart shall have the same force and effect as delivery of an
originally executed counterpart.

                  [Remainder of Page Intentionally Left Blank]
                            [Signature Pages Follow]

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                  IN WITNESS WHEREOF, the parties hereto have executed this
Amendment effective as of the date first above written.

                                WOLVERINE TUBE, INC.

                                By:    /s/  James E. Deason
                                       -------------------------------------
                                Name: James E. Deason
                                Title: SR. VP & CFO

                                TUBE FORMING, LP

                                By: /s/ James E. Deason
                                Name: James E. Deason
                                Title: VP & Treasurer

                                SMALL TUBE MANUFACTURING LLC

                                By:    /s/  James E. Deason
                                  ------------------------------------------
                                Name: James E. Deason
                                Title: VP & Treasurer

                                DEJ 98 FINANCE, LLC

                                By:    /s/  James E. Deason
                                  ------------------------------------------
                                Name: James E. Deason
                                Title: Board of Managers

                                       4<PAGE>
                                                                    EXHIBIT 10.4

                                                                  EXECUTION COPY

                                 AMENDMENT NO. 4
                    TO AMENDED AND RESTATED CREDIT AGREEMENT

         THIS AMENDMENT NO. 4 TO AMENDED AND RESTATED CREDIT AGREEMENT, dated as
of April 4, 2006 (the "Agreement") relating to the Credit Agreement referenced
below, is by and among WOLVERINE TUBE, INC., a Delaware corporation (the
"Company"), certain of its Subsidiaries identified as Subsidiary Borrowers on
the signature pages hereto and any additional Subsidiaries of the Company which
become parties to the Credit Agreement in accordance with the terms thereof
(collectively referred to as the "Subsidiary Borrowers" and individually
referred to as a "Subsidiary Borrower") (hereinafter, the Company and the
Subsidiary Borrowers are collectively referred to as the "Borrowers" or referred
to individually as a "Borrower"), each of the financial institutions identified
as Lenders on the signature pages hereto (the "Lenders" and each individually, a
"Lender"), and WACHOVIA BANK, NATIONAL ASSOCIATION, ("Wachovia"), acting in the
manner and to the extent described in Article XIII of the Credit Agreement (in
such capacity, the "Administrative Agent"). Terms used but not otherwise defined
herein shall have the meanings provided in the Credit Agreement and the
provisions of Sections 1.2 and 1.3 of the Credit Agreement related to the
definitions shall apply herein.

                             W I T N E S S E T H

         WHEREAS, a $35,000,000 credit facility has been extended to the
Borrowers pursuant to the terms of that certain Amended and Restated Credit
Agreement dated as of April 28, 2005 (as amended, modified or otherwise
supplemented from time to time, the "Credit Agreement") among the Borrowers, the
Lenders, and the Administrative Agent;

         WHEREAS, the Borrowers have requested that certain amendments be made
as contemplated herein and the Lenders agree to amend such provisions pursuant
to the terms and conditions herein; and

         WHEREAS, the undersigned Lenders have agreed to amend the Credit
Agreement as set forth herein;

         NOW, THEREFORE, in consideration of these premises and other good and
valuable consideration, the receipt and sufficiency of which are hereby
acknowledged, the parties hereto agree as follows:

          (A)  AMENDMENTS.

               1. The definition of "Permitted Securitization" in Section 1.1 of
          the Credit Agreement is hereby deleted and replaced with the
          following:

                    "Permitted Securitization" means the trade securitization
               transaction for an aggregate principal amount of third party
               investments, advances or sales of accounts receivable of up to
               $70,000,000, evidenced by that certain Receivables

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               Sale Agreement, dated as of April 28, 2005 among the
               Securitization Companies and the SPC, as amended by that certain
               Amendment No. 1, dated as of April 4, 2006, that certain
               Receivables Sale Agreement, dated as of April 4, 2006, among
               Wolverine Tube (Canada), Inc. and the SPC and that certain
               Amended and Restated Receivables Purchase Agreement, dated as
               April 4, 2006 among the SPC, Wolverine Finance, LLC, the Company,
               Variable Funding Capital Company, LLC, the liquidity banks from
               time to time party thereto, The CIT Group/Business Credit, Inc.,
               individually and as co-agent, and Wachovia Bank, National
               Association, as agent.

               2. Clause (a) of Section 6.6. of the Credit Agreement is hereby
          amended by deleting the reference therein to "December 31, 2004" and
          replacing it with "December 31, 2005".

               3. Each of the Schedules attached to the Credit Agreement is
          hereby deleted and replaced by the corresponding Schedule attached to
          this Agreement.

         (B) REPRESENTATIONS AND WARRANTIES. Each Credit Party hereby represents
and warrants that (i) the representations and warranties contained in Article VI
of the Credit Agreement are true and correct in all material respects on and as
of the date hereof as though made on and as of such date (except for those
representations and warranties which by their terms relate solely to an earlier
date) and after giving effect to the transactions contemplated herein, (ii) no
Default or Event of Default exists under the Credit Agreement on and as of the
date hereof and after giving effect to the transactions contemplated herein,
(iii) it has the corporate, limited liability company or limited partnership
power and authority to execute and deliver this Agreement and to perform its
obligations hereunder and has taken all necessary organizational action to
authorize the execution, delivery and performance by it of this Agreement; (iv)
it has duly executed and delivered this Agreement, and this Agreement
constitutes its legal, valid and binding obligation enforceable in accordance
with its terms except as the enforceability thereof may be limited by
bankruptcy, insolvency or other similar laws affecting the rights of creditors
generally or by general principles of equity and (v) neither the execution and
delivery of this Agreement, nor the consummation of the transactions
contemplated therein, nor performance of and compliance with the terms and
provisions thereof will violate or conflict in any material respect with any
material provision of its articles or certificate of incorporation or
certificate of limited partnership or certificate of formation, bylaws,
agreement of limited partnership or limited liability company agreement or
violate, contravene or conflict in any material respect with contractual
provisions of, or cause an event of default under, any indenture, including
without limitation the 2008 Senior Note Indenture and 2009 Senior Note
Indenture, loan agreement, mortgage, deed of trust, contract or other agreement
or instrument to which it is a party or by which it may be bound.

         (C) EFFECTIVENESS. This Agreement shall become effective upon
satisfaction of all of the following conditions precedent:

               1. Executed Agreement. The Administrative Agent shall have
          received a fully executed counterpart of this Agreement from each
          party hereto.

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               2. Permitted Securitization Amendment. The Administrative Agent
          shall have received (a) an original fully executed copy of Amendment
          No. 1 to the Receivables Sale Agreement (U.S.), dated as of April 4,
          2006, (b) an original fully executed copy of the Amended and Restated
          Receivables Purchase Agreement, dated April 4, 2006 and (c) an
          original fully executed copy of the Receivables Sale Agreement, among
          Wolverine Tube (Canada), Inc. and the SPC, dated April 4, 2006, in
          each case, which evidence the Permitted Securitization, upon terms
          reasonably satisfactory to the Administrative Agent, which agreements
          shall be in full force and effect and not subject to any unsatisfied
          conditions precedent, and to which the Administrative Agent and the
          Lenders hereby consent.

               4. Other Conditions Precedent. The Borrowers shall have completed
          all proceedings taken in connection with the transactions contemplated
          by this Agreement and delivered to the Administrative Agent all other
          documentation and other items incident thereto, and each shall be
          satisfactory to the Administrative Agent and its legal counsel, Mayer,
          Brown, Rowe & Maw, LLP.

         (D) EQUIPMENT APPRAISAL. The Administrative Agent, in its sole
discretion and at the expense of the Borrowers, shall have the right to request
and receive a completed appraisal of all Equipment of the Credit Parties
conducted by a third party appraiser satisfactory to the Administrative Agent.

         (E) NO OTHER MODIFICATION. Except to the extent specifically provided
to the contrary in this Agreement, all terms and conditions of the Credit
Agreement (including Exhibits and Schedules thereto) and the other Credit
Documents shall remain in full force and effect, without modification or
limitation. This Agreement shall not operate as a consent to any other action or
inaction by the Borrowers or any other Credit Party, or as a waiver or amendment
of any right, power, or remedy of any Lender or the Administrative Agent under
the Credit Agreement or any other Credit Document nor constitute a consent to
any such action or inaction, or a waiver or amendment of any provision contained
in the Credit Agreement or any other Credit Document except as specifically
provided herein. Each of the Credit Parties acknowledges, confirms and agrees
that the Credit Documents to which it is a party remain in full force and effect
as of the date hereof and continue to secure all Obligations of each such Credit
Party to any Lender or the Administrative Agent, and novation of any kind is
hereby expressly disclaimed.

         (F) RELEASE. In consideration of entering into this Agreement, each
Credit Party (a) represents and warrants to the Administrative Agent and each
Lender that as of the date hereof there are no causes of action, claims,
actions, proceedings, judgments, suits, demands, damages or offsets against or
defenses or counterclaims to its Obligations or Secured Obligations under the
Credit Documents and furthermore, such Credit Party waives any and all such
causes of action, claims, actions, proceedings, judgments, suits, demands,
damages, offsets, defenses or counterclaims whether known or unknown, arising
prior to the date of this Agreement and (b) releases the Administrative Agent
and each Lender and each of their respective Affiliates, Subsidiaries, officers,
employees, representatives, agents, counsel and directors from any and all
actions, causes of action, claims, actions, proceedings, judgments, suits,
demands, damages and liabilities of whatever kind or nature, in law or in
equity, now known or unknown, suspected or

                                       3
<PAGE>

unsuspected to the extent that any of the foregoing arises from any action or
failure to act with respect to any Credit Document, on or prior to the date
hereof.

         (G) GOVERNING LAW. This Agreement shall be governed by and construed
and interpreted in accordance with the laws of the State of North Carolina,
without regard to the principles governing conflicts of laws thereof.

         (H) INCORPORATION BY REFERENCE OF CERTAIN PROVISIONS. THE PROVISIONS IN
SECTIONS 14.5, 14.6, 14.8, 14.9, 14.10, 14.12, 14.13, 14.14, 14.15, 14.19 AND
14.24 OF THE CREDIT AGREEMENT ARE HEREBY INCORPORATED BY REFERENCE HEREIN,
MUTATIS MUTANDIS.

                            [SIGNATURE PAGES FOLLOW]

                                       4

<PAGE>

         Each of the parties hereto has caused a counterpart of this Agreement
to be duly executed and delivered as of the date first above written.

                                    COMPANY:

                                    WOLVERINE TUBE, INC.

                                    By:    /s/  James E. Deason
                                      ------------------------------------------
                                    Name:    James E. Deason
                                    Title:     Sr VP & CFO

                                    SUBSIDIARY BORROWERS:
                                    --------------------

                                    TF INVESTOR, INC.

                                    By:    /s/  James E. Deason
                                      ------------------------------------------
                                    Name:    James E. Deason
                                    Title:     VP & Treasurer

                                    TUBE FORMING HOLDINGS, INC.

                                    By:    /s/  James E. Deason
                                      ------------------------------------------
                                    Name:    James E. Deason
                                    Title:     VP & Treasurer

                                    TUBE FORMING, L.P.

                                    By:      Tube Forming Holdings, Inc.,
                                             its General Partner

                                             By:    /s/  James E. Deason
                                               ---------------------------------
                                             Name:    James E. Deason
                                             Title:     VP & Treasurer

                                                            Wolverine Tube, Inc.
                                                                 Amendment No. 4

<PAGE>

                                  WOLVERINE FINANCE, LLC

                                  By:    /s/  James E. Deason
                                         -------------------------------------
                                  Name:    James E. Deason
                                  Title:     Vice Manager & Secretary

                                  SMALL TUBE MANUFACTURING, LLC

                                  By:    /s/  James E. Deason
                                    ------------------------------------------
                                  Name:    James E. Deason
                                  Title:     VP & Treasurer

                                  WOLVERINE JOINING TECHNOLOGIES, LLC

                                  By:    /s/  James E. Deason
                                       ---------------------------------------
                                  Name:    James E. Deason
                                  Title:     VP & Treasurer

                                  WOLVERINE CHINA INVESTMENTS, LLC

                                  By:      Wolverine Tube, Inc.,
                                           its Managing Member

                                           By:    /s/  James E. Deason
                                             ---------------------------------
                                           Name:    James E. Deason
                                           Title:     SR VP & CFO

                                  WT HOLDING COMPANY, INC.

                                  By:    /s/  James E. Deason
                                         -------------------------------------
                                  Name:    James E. Deason
                                  Title:     VP & Treasurer

                                                            Wolverine Tube, Inc.
                                                                 Amendment No. 4

<PAGE>

                                  AGENT AND LENDERS:
                                  -----------------

                                  WACHOVIA BANK,
                                  NATIONAL ASSOCIATION, in its capacity
                                  as Administrative Agent and as a Lender

                                  By:    /s/  Laurie D. O'Fallon
                                    ------------------------------------------
                                  Name:  Laurie D. O'Fallon
                                  Title:    Director

                              (signature pages end)

                                                            Wolverine Tube, Inc.
                                                                 Amendment No. 4

<PAGE>

                          ATTACH REPLACEMENT SCHEDULES

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