PURSUANT to RULE 901(D) of REGULATION S-T

THIS CONFORMED PAPER FORMAT DOCUMENT IS BEING SUBMITTED ------PURSUANT TO RULE 901(d) OF REGULATION S-T ------

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported) August 27, 1999 ------

AK STEEL HOLDING CORPORATION ------

(Exact name of registrant as specified in its charter)

Delaware File No. 1-13696 31-1401455 ------(State or other (Commission file number) (IRS employer jurisdiction of identification incorporation) number)

703 Curtis Street, Middletown, Ohio 45043 ------(Address of principal executive offices) (Zip code)

Registrant's telephone number, including area code: 513-425-5000 ------

Not Applicable ------(Former name or former address, if changed since last report)

Item 5. Other Events. ------

Filed herewith is a copy of a Press Release, dated August 27, 1999, issued by AK Steel Holding Corporation (the "Company") to announce that the U.S. Department of Justice has completed its antitrust review of the proposed merger of Armco Inc. into AK Steel Corporation, (a direct wholly owned subsidiary of the Company). AK Steel and Armco may now proceed with their merger, which will be submitted to a vote of the stockholders of both companies on September 29, 1999.

Item 7. Exhibit. ------

(a) Financial Statements of business acquired:

Not applicable. (b) Pro Forma financial information:

Not applicable.

(1) Press Release, dated August 27, 1999

Signatures

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

AK STEEL HOLDING CORPORATION

/s/ ------Brenda S. Harmon Secretary

Dated: August 27, 1999

AK STEEL HOLDING CORPORATION

FORM 8-K

CURRENT REPORT

Exhibit Index

Exhibit No. Description Page ------(1) Press Release, dated August 27, 1999 5 Exhibit 99.1

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[LOGO] NEWS RELEASE AK Steel

Contacts: Media - Alan H. McCoy, Vice President, Public Affairs (513) 425-2826 Investors - James L. Wainscott, Vice President, Treasurer and CFO (513) 425-5392

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Department of Justice Completes AK Steel Merger Review ------

MIDDLETOWN, OH, August 27, 1999--AK Steel (NYSE: AKS) today said that the U.S. Department of Justice has completed its antitrust review of AK Steel's proposed merger with Armco Inc. (NYSE: AS). Accordingly, AK Steel and Armco may now proceed with their merger, which will be submitted to a vote of the stockholders of both companies on September 29, 1999.

In connection with the Department of Justice review, AK Steel agreed to grant Wheeling-Nisshin, Inc. rights under various AK Steel patents, effective upon the closing of the merger, relating to hot-dip aluminum coated stainless steel strip used primarily in automotive exhaust system applications. The license will enable Wheeling-Nisshin to proceed with product development efforts that it previously initiated under arrangements with Armco.

AK Steel produces flat-rolled steel products for automotive, appliance, construction and manufacturing industries. The company employs about 5,800 men and women in its plants and offices in Middletown, Ohio, Ashland, Kentucky and Rockport, Indiana. Armco employs about 5,700 and is a leading producer of specialty flat-rolled stainless, electrical and galvanized steels with plants in Butler, Pennsylvania and Coshocton, Dover, Mansfield and Zanesville, Ohio. Armco also produces snow and ice control products, standard pipe and tubular products and operates a major industrial park on the Houston, Texas ship channel.

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