EXHIBIT 10.1
                                                                    ------------

                            AMENDMENT FIVE TO AMENDED
                          AND RESTATED CREDIT AGREEMENT

     THIS AMENDMENT FIVE TO AMENDED AND RESTATED CREDIT AGREEMENT ("Amendment")
is made and entered into as of this 28th day of February, 2005 (the "Effective
Date"), by and among NORTH AMERICAN GALVANIZING & COATINGS, INC., a Delaware
corporation formerly known as Kinark Corporation ("NAGC"), and NORTH AMERICAN
GALVANIZING COMPANY, a Delaware corporation ("NAG") (NAGC and NAG are herein
collectively referred to as "Borrowers" and separately as "Borrower"), and
JPMORGAN CHASE BANK, N.A. (as successor by merger to Bank One, NA (Main Office
Columbus)) ("Bank").


                             INTRODUCTORY STATEMENT

     A.   Reference is made to the Amended and Restated Credit Agreement dated
November 26, 2001, by and among Borrowers and Bank, as amended by the Amendment
One to the Amended and Restated Credit Agreement dated October 28, 2002, the
Amendment Two to the Amended and Restated Credit Agreement dated January 28,
2003, the Amendment Three to the Amended and Restated Credit Agreement dated
September 26, 2003, and the Amendment Four to the Amended and Restated Credit
Agreement dated December 15, 2004 (as amended, the "Credit Agreement"), pursuant
to which exists a: (i) Revolving Commitment of $7,000,000.00, and (ii)
Consolidated Term Loan with an outstanding principal balance of approximately
$2,906,018.17. Terms used herein shall have the meaning ascribed to them in the
Credit Agreement, unless otherwise defined herein.

     B.   Borrowers have requested Bank to: (i) increase the Revolving Credit
Facility from $7,000,000 to $8,000,000; (ii) extend the Revolving Credit
Facility's maturity date to three years from the Effective Date, while
maintaining its sub-limit of $1,000,000 for the issuance of letters of credit,
subject to the same borrowing base availability; (iii) increase the Consolidated
Term Loan by $2,095,371 from approximately $2,906,018.17 to $5,001,389.17,
assessing a 0.5% fee on the new money advanced at closing; (iv) extend the
Consolidated Term Loan's maturity date to three years from the Effective Date;
(v) accept as additional mortgaged collateral Borrowers' Canton, Ohio facility
that will be purchased contemporaneous to the Effective Date; and (vi) modify
and extend the Bond Letter of Credit in the amount of $6,963,000.00 with an
expiry date that coincides with the Revolving Note and the Consolidated Term
Note; and Bank has agreed to accommodate Borrowers' request, subject to the
following:

                                    AGREEMENT

     For valuable consideration received the parties agree to the following:

1.   Loan Documents. Borrowers agree to execute and deliver any certificates,
documents and agreements reasonably required by Bank to verify the
enforceability and priority of all rights conferred upon Bank; and Borrowers
irrevocably authorize Bank to electronically file documentation it deems
necessary to maintain first and prior liens in the Collateral with all necessary
and appropriate filing offices.
<PAGE>

2.   Amendments to Credit Agreement.

     2.1. Revolving Credit Facility. (i) The term "Revolving Commitment Period"
is hereby amended to replace the date "December 15, 2007" with "February 28,
2008"; (ii) the term "Revolving Commitment" means, as of any determination date,
the lesser of the sum of $8,000,000 or the Borrowing Base in effect on such
date; (iii) Section 2.1.3's reference of a $1,000,000 sub-limit to be used for
the issuance of letters of credit shall remain the same; (iv) Section 2.8.3's
reference to a maturity date is hereby amended to replace the date "December 15,
2007" with "February 28, 2008"; and (v) the Maturity Date of the Revolving Note
is hereby extended to February 28, 2008, as further evidenced by the $8,000,000
Promissory Note ("$8,000,000 Revolving Note") in form and content as set forth
on Schedule "2.1" hereto.

     2.2  Consolidated Term Note. (i) The amended term "Consolidated Term Loan"
is hereby amended to replace the date "December 15, 2007" with "February 28,
2008"; (ii) the amended term "Consolidated Term Note" means that certain
Promissory Note dated February 28, 2005 in the stated principal amount of
$2,906,018.17, with a Maturity Date extended from December 15, 2007 to February
28, 2008, as further evidenced by the $5,001,389.17 Promissory Note
("$5,001,389.17 Consolidated Term Note") in form and content as set forth on
Schedule "2.2" hereto; (iii) Section 2.8.1 shall be modified to require
Borrowers to make principal and interest payments in consecutive monthly
installments on the last day of each calendar month, with each monthly principal
installment to be in the amount of $59,540.35 (representing a seven-year
straight-line amortization calculation on a three-year term loan), plus accrued
interest The entire remaining principal balance of the Consolidated Term Note,
together with all accrued and unpaid interest thereon, will be due and payable
in full on February 28, 2008; and (iv) Borrowers shall remit to Bank at closing
a fee of $10,477 representing a 0.5% fee on the new money advanced.

     2.3  Mortgaged Property. (i) The term "Mortgaged Property" has previously
included the facilities at St. Louis, Missouri, Houston Texas and Hurst, Texas.
"Mortgaged Property" is hereby expanded to include the facility at Canton, Ohio,
the acquisition of which is the subject matter and principal purpose of this
Amendment. Accordingly, Borrowers shall execute the Mortgage associated with the
Canton, Ohio property in form and content as set forth on Schedule "2.3" hereto.

     2.4  Bond L/C. The term "Bond L/C" is hereby amended to evidence that the
originally issued Bond L/C (No. STI 15477) currently has a face amount of
$6,963,000.00 and has an expiry date of February 28, 2008.

3.   Ratification of Guaranty. Each Guarantor, whether with respect to a
Guaranty pursuant to Section 3.6 of the Credit Agreement or with respect to a
specific Guaranty Agreement executed and delivered pursuant to Section 3.7 of
the Credit Agreement, hereby (i) acknowledges and accepts the modifications to
and extensions of the Revolving Note and the Consolidated Term Note, (ii) hereby
ratifies and confirms their respective guaranty obligations, (iii) acknowledges
that the Guarantor Documents continue in full force and effect, unabated and
uninterrupted, and remain valid and binding obligations of the undersigned,
enforceable in accordance with their turns, (iv) agrees to execute and deliver
the documents required of them under the terms of this Amendment, and (v) agree
to be bound by, and hereby join in, the release of the Bank set FORTH HEREIN.
<PAGE>

4.   Conditions of Lending.

     4.1. Effective Date. This Agreement shall be effective as of the EFFECTIVE
Date, subject to the Borrowers' satisfaction of all of the conditions set forth
in Section 4.2. The delivery of the Loan Documents shall be made on or as of the
Effective Date at such time and place as the parties shall mutually agree.

     4.2. Conditions Precedent. The effectiveness of this Credit Agreement is
subject to the Borrowers' satisfaction of the following conditions precedent at
or as of the Effective Date:

          4.2.1. Loan Documents. This Agreement, the extended $8,000,000.00
     Revolving Note, the extended $5,001,389.17 Consolidated Term Note, the
     Mortgage, and any other Loan Documents requested by Bank shall have been
     duly and validly authorized, executed and delivered to Bank by the
     appropriate parties thereto, all in form and substance satisfactory to
     Bank.

          4.2.2. Incumbency Certificates. If requested, the Bank shall have
     received a certificate executed by the duly elected and acting corporate
     secretary of each of the Loan Parties stating the names and titles and
     containing specimen signatures of the officers authorized to execute and
     deliver Loan Documents on behalf of such Loan Party.

          4.2.3. Lien Searches. The Bank shall have received certified responses
     to UCC lien search requests reflecting that there are no effective UCC
     financing statements on file in any filing offices in the States of
     Oklahoma and Delaware (or any other state in which any of the Loan Parties
     is organized or in which it owns any tangible personal property) naming any
     of the Loan Parties as debtor, other than financing statements relating to
     Permitted Liens.

          4.2.4. Other Matters. The Borrowers shall have provided the Bank with
     such reports, information, financial statements, and other documents as the
     Bank has reasonably requested to evidence the Borrowers' compliance with
     the terms and conditions of this Agreement and the Loan Documents.

          4.2.5. Release of Bank. Each of the Borrowers and Guarantors hereby
     releases the Bank from any and all claims, known or unknown, which may have
     arisen in connection with the Credit Agreement on or prior to the date on
     which this Amendment has been executed and delivered.

          4.2.6. Fees. The Borrowers shall have paid all fees provided for in
     this Agreement, to the extent such fees are dues and payable at or as of
     the Effective Date. Further, the Borrowers agree to pay the reasonable fees
     and out-of-pocket expenses of The Drummond Law Firm, counsel to the Bank,
     incurred in connection with the preparation of this Amendment and the
     consummation of the transactions contemplated hereby and thereby, in the
     amount of at least $3,500.00.
<PAGE>

          4.2.7. No Defaults. There shall not have occurred or be continuing any
     Default or Event of Default.

          4.2.8. Legal Matters. All legal matters incident to this Amendment and
     the transactions contemplated hereby shall be satisfactory to the Bank and
     its counsel.

          4.2.9. Appraisal and Environmental Audit. Bank shall have received and
     be satisfied with a (i) FIRREA conforming real estate appraisal on the
     Canton, Ohio facility, and (ii) Phase I environmental audits on the Canton,
     Ohio and the Hurst, Texas properties.

5.   Cross-Collateralization. The Borrowers acknowledge and agree that all
Collateral from time to time securing the Indebtedness of the Borrowers arising
under or in connection with the Credit Agreement (and all documents and
instruments executed or issued or to be executed or issued pursuant hereto or in
connection with the Facilities or the Collateral) shall also secure the prompt
payment and performance of all other liabilities, obligations and indebtedness
of the Borrowers to the Bank, of every kind and description, whether now
existing or hereafter incurred, direct or indirect, absolute or contingent, due
or to become due, matured or unmatured, and whether or not of the same or a
similar class or character and whether or not currently contemplated by the Bank
or the Borrowers, including (i) all liabilities, obligations and indebtedness of
NAGC or NAG to the Bank arising out of or relating to the several notes,
including costs and expenses of collection, (ii) any overdrafts by Borrowers on
any deposit account maintained with the Bank, (iii) any and all obligations,
contingent or otherwise, of Borrowers to the Bank (or any of its Affiliates),
and (iv) any and all extensions or renewals of any of the foregoing (hereinafter
collectively referred to as the "Borrowers' Indebtedness"), whether or not the
Borrowers' Indebtedness is expressly described or referred to in the applicable
Loan Documents.

6.   Cross-Default. The Borrowers acknowledge, agree and reconfirm that the
Credit Agreement, as amended, shall be cross-defaulted with any other obligation
of either Borrower to Bank, such that the occurrence or existence of an Event of
Default under the Credit Agreement will also create an event of default under
any current or future credit agreement or lending obligation of either Borrower.

7.   U.S. Patriot Act Notice. Bank hereby notifies Borrowers, Guarantors and
other parties related to this Agreement (cumulatively referred to as "Parties")
that pursuant to the requirements of the USA Patriot Act (Title III of Pub. L.
107-56 (signed into law October 26, 2001)) (the "Patriot Act"), it is or may be
required to obtain, verify and record information that identifies any of the
Parties related to this Agreement, which information includes the name and
address of any of the Parties and other information that will allow Bank to
identify the Parties in accordance with the Patriot Act.

8.   Reaffirmation. The Borrowers confirm that all representations and
warranties made by them in Section 6 of the Credit Agreement are and will be
true and correct on the Effective Date (with the dates in Section 6.6 being
changed to read December 31, 2003, and December 31, 2004, respectively), and all
of such representations and warranties are hereby remade and restated as the
date hereof and shall survive the execution and delivery of this Amendment.
<PAGE>

9.   Additional Representations and Warranties. Each of the Borrowers further
represents and warrants to the Bank that:

     9.1. Each of the Borrowers has all requisite power and authority and has
been duly authorized to execute, deliver and perform its obligations under this
Amendment and the documents and instruments contemplated hereunder
(collectively, the "Amendment Documents") and the Credit Agreement (as amended
by this Amendment).

     9.2. The Amendment Documents and the Credit (as amended by this Amendment)
are valid and legally binding obligations of the Borrowers, enforceable in
accordance with their respective terms, except as limited by applicable
bankruptcy, insolvency or other laws affecting the enforcement of creditors'
rights generally.

     9.3. The execution, delivery and performance of the Amendment Documents and
the Credit Agreement (as amended by this Amendment) by each of the Borrowers
does not and will not (a) conflict with, result in a breach of the terms,
conditions or provisions of, constitute a default under, or result in any
violation of the governing documents of either of the Borrowers, or any
agreement, instrument, undertaking, judgment, decree, order, writ, injunction,
statute, law, rule or regulation to which either of the Borrowers is SUBJECT or
by which the assets and property of either of the Borrowers (including the
Collateral) are bound or affected, (b) result in the creation or imposition of
any Lien on any assets or property now or hereafter owned by either of the
Borrowers pursuant to the provisions of any mortgage, indenture, security
agreement, contract, undertaking or other agreement to which either of the
Borrowers is a party, other than the obligations of the Borrowers to the Bank
created by the Credit Documents, (c) require any authorization, consent,
license, approval or authorization of, or other action by, notice or declaration
to, registration with, any Governmental Authority or, to the extent any such
consent or other action may be required, it has been validly procured or duly
taken, or (d) result in the occurrence of a Material Adverse Effect.

10.  Effect of Amendment. The terms of this Amendment shall be incorporated into
and form a part of the Credit Agreement. Except as amended, modified and
supplemented by this Amendment, the Credit Agreement, as previously amended,
shall continue in full force and effect in accordance with its original stated
terms, all of which are hereby reaffirmed in every respect as of the date
hereof. In the event of any irreconcilable inconsistency between the terms of
this Amendment and the terms of the Credit Agreement or any other Loan Document,
the terms of this Amendment shall control and govern, and the agreements shall
be interpreted so as to carry out and give full effect to the intent of this
Amendment. All references to the "Credit Agreement" appearing in any of the Loan
Documents shall hereafter be deemed references to the Credit Agreement as
amended, modified and supplemented by this Amendment. Each of the Borrowers
hereby reaffirms all Loan Documents to which it is a party, and acknowledges
that such Loan Documents will continue in full force and effect, unabated and
uninterrupted, and will remain its valid and binding obligations, enforceable in
accordance with their terms.
<PAGE>

11.  Construction; Applicable Law. This Amendment and the other Loan Documents
are contracts made under, and shall be construed in accordance with, the laws of
the State of Oklahoma. Nothing in this Amendment shall be construed to
constitute the Bank as a joint venturer with the Borrowers or to constitute a
partnership among the parties. The descriptive headings of the Sections of this
Amendment are for convenience only and shall not be used in the construction of
the content of this Amendment.

12.  Binding Effect. This Amendment and the other Loan Documents shall be
binding on, and shall inure to the benefit of, the parties hereto and their
respective successors and assigns; PROVIDED, that without the prior, written
consent of the Bank, neither of the Borrowers will assign or transfer any of its
interests, rights or obligations arising out of or relating to the Loan
Documents. No third party shall be considered as an intended beneficiary of this
Amendment or have any rights hereunder.

13.  Severability. In the event any one or more of the provisions contained in
this Amendment or the other Loan Documents shall, for any reason, be held to be
invalid, illegal or unenforceable in any respect and in any jurisdiction, such
invalidity, illegality or unenforceability shall not affect any other provision
thereof.

14.  Entire Amendment; Conflicting Provisions. This Amendment and the Loan
Documents constitute the entire Amendment of the parties hereto with respect to
the Facilities and all matters arising out of or related thereto. The Schedules
attached hereto are incorporated herein for all purposes. In the event of any
conflict between or among the provisions of this Amendment and the provisions of
any other Loan Documents, the provisions of this Amendment shall control.


                            [Signature Page Follows]
<PAGE>

     IN WITNESS WHEREOF, the Bank and the Borrowers have caused this Amendment
to be duly executed effective as of the date first above written.


                                        NORTH AMERICAN GALVANIZING &
                                        COATINGS, INC., a Delaware corporation,
                                        formerly known as Kinark Corporation, as
                                        Borrower and Guarantor


                                        By /s/ Paul R. Chastain
                                           -------------------------------------
                                           Paul R. Chastain, Vice President




                                        NORTH AMERICAN GALVANIZING COMPANY, a
                                        Delaware corporation, as Borrower and
                                        Guarantor


                                        By /s/ Paul R. Chastain
                                           -------------------------------------
                                           Paul R. Chastain, Vice President




                                        JPMORGAN CHASE BANK, N.A.


                                        By /s/ Matthew P. Clifton
                                           -------------------------------------
                                           Matthew P. Clifton, Assistant Vice
                                           President




                                        "Subsidiary Guarantors"

                                        NAGalv-Ohio, Inc.
                                        a Delaware corporation


                                        By /s/ Paul R. Chastain
                                           -------------------------------------
                                           Paul R. Chastain, Vice President




                                        PREMIER COATINGS, INC.,
                                        an Oklahoma corporation


                                        By /s/ Paul R. Chastain
                                           -------------------------------------
                                           Paul R. Chastain, Vice President

<PAGE>


                                        REINFORCING SERVICE, INC.,
                                        an Oklahoma Corporation


                                        By /s/ Paul R. Chastain
                                           -------------------------------------
                                           Paul R. Chastain, Vice President




                                        ROGERS GALVANIZING COMPANY-KANSAS CITY,
                                        an Oklahoma corporation


                                        By /s/ Paul R. Chastain
                                           -------------------------------------
                                           Paul R. Chastain, Vice President