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                   North American Galvanizing & Coatings, Inc.
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                (Name of Registrant as Specified In Its Charter)

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NORTH AMERICAN GALVANIZING & Coatings, Inc.


May 6, 2005

                          ANNUAL MEETING - MAY 26, 2005


Dear Stockholder:

           You should have recently received our proxy statement for our 2005
Annual Meeting of Stockholders. We are writing to update the biographical
information contained in our proxy statement for three of our directors, Gilbert
L. Klemann, II, Patrick J. Lynch and Joseph J. Morrow. These updates were
inadvertently excluded from the biographical information for these individuals
that appears on pages 4 and 5 of our proxy statement. When reviewing your proxy
statement for the 2005 Annual Meeting, please substitute the biographies
contained on the attached addendum in place of those in the proxy statement.

           We apologize for this oversight and thank you for your understanding.
Please remember that your vote is very important. As such, please review the
proxy statement and the attached addendum and return your proxy card, or follow
the Internet or telephone voting instructions on the proxy card, to ensure that
your shares are represented at our 2005 Annual Meeting.



                                        Sincerely,


                                        Paul R. Chastain
                                        Vice President & Corporate Secretary





North American Galvanizing & Coatings, Inc.
2250 E. 73rd Street, Suite 300 Tulsa, Oklahoma 74136-6832 USA

(918) 494-0964                 Fax (918) 494-3999                 www.nagalv.com


                                    ADDENDUM
                                    --------

GILBERT L. KLEMANN, II, age 54, Senior Vice President and General Counsel of
Avon Products Inc. since January 2001. During 2000, Mr. Klemann was Of Counsel
for the international law firm of Chadbourne & Parke LLP, New York City. From
1991 to 1999, Mr. Klemann was an Executive Officer and General Counsel of
Fortune Brands, Inc. (formerly American Brands, Inc.), a publicly-owned consumer
products holding company, where he also was a member of the Board of Directors.
Prior to 1990 he was a partner in the law firm of Chadbourne & Parke LLP. Mr.
Klemann is also a director of Standard Commercial Corporation, a publicly-owned
company, and serves on its Audit and Compensation Committees. Served as director
of the Company continuously since 2000.

PATRICK J. LYNCH, age 67, Private investor and formerly Senior Vice President
and Chief Financial Officer of Texaco Inc., a publicly-owned oil and
petrochemicals company, from 1997 to 2001. For more than five years, Mr. Lynch
was actively engaged in the business of Texaco Inc. or one of its subsidiaries
or affiliated companies. He is a member of the Trustees of The American
Petroleum Institute, The Conference Board Financial Executives and CFO Advisory
Council, and serves as a Trustee for Iona College in New Rochelle, New York. Mr.
Lynch also serves as a director of Aquila, Inc., a publicly-owned company, and
serves on its Audit Committee. Served as director of the Company continuously
since 2001.

JOSEPH J. MORROW, age 65, appointed Non-Executive Chairman of the Board in
November 1999. Chairman of Proxy Services Corporation from 1992 to present.
Chief Executive Officer of Proxy Services Corporation from 1972 to 1992. Chief
Executive Officer of Morrow & Co., Inc., a privately-owned proxy solicitation
firm, since 1972. Mr. Morrow is also a director of Warwick Valley Telephone
Company, a publicly-owned company, and serves as a member of its Audit
Committee. Served as director of the Company continuously since 1996.