EXHIBIT 15 – Awareness Letter of Deloitte & Touche LLP

April 30, 2010

North American Galvanizing & Coatings, Inc.

5314 South Yale Avenue

Suite 1000

Tulsa, Oklahoma 74135

We have reviewed, in accordance with the standards of the Public Company Accounting Oversight Board (United States), the unaudited interim financial information of North American Galvanizing & Coatings, Inc. and subsidiary for the three-month periods ended March 31, 2010 and 2009, as indicated in our report dated April 30, 2010; because we did not perform an audit, we expressed no opinion on that information.

We are aware that our report referred to above, which is included in your Quarterly Report on Form 10-Q for the quarter ended March 31, 2010, is incorporated by reference in Registration Statements No. 333-133848 and No. 333-165062 on Form S-8 and No. 333-61393 on Form S-3 of North American Galvanizing & Coatings, Inc. (formerly Kinark Corporation).

We also are aware that the aforementioned report, pursuant to Rule 436(c) under the Securities Act of 1933, is not considered a part of the Registration Statement prepared or certified by an accountant or a report prepared or certified by an accountant within the meaning of Sections 7 and 11 of that Act.

/s/ Deloitte & Touche LLP

Tulsa, Oklahoma