8-K

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(d) OF

THE SECURITIES EXCHANGE ACT OF 1934

DATE OF REPORT – April 23, 2007

(Date of Earliest Event Reported)

AK STEEL HOLDING CORPORATION

(Exact name of registrant as specified in its charter)

Commission File No. 1-13696

Delaware	31-1401455
(State of Incorporation)	(I.R.S. Employer Identification No.)
703 Curtis Street, Middletown, OH	45043
(Address of principal executive offices)	(Zip Code)

Registrant’s telephone number, including area code: (513) 425-5000

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

¨ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

¨ Solicitation material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

¨ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

¨ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Item 7.01 Regulation FD Disclosure.

AK Steel Holding Corporation is hereby furnishing the following information under Regulation FD:

On April 23, 2007, AK Steel Corporation issued a press release, a copy of which is attached hereto as Exhibit No. 99.1 and incorporated by reference herein, announcing that its board of directors has authorized the company to make an early $105 million contribution to its pension trust fund.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibit:

99.1 Press Release issued on April 23, 2007

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 hereunto duly authorized.

AK STEEL HOLDING CORPORATION
By:	/s/ David C. Horn
	David C. Horn
	Secretary

Dated: April 23, 2007

EXHIBIT INDEX

Exhibit No.	Description
99.1	Press Release issued on April 23, 2007

EX-99.1

Exhibit 99.1

Contacts: Media – Alan H. McCoy, Vice President, Government & Public Relations (513) 425-2826
Investors – Albert E. Ferrara, Jr., Vice President, Finance & CFO (513) 425-2888

AK Steel To Make Another Early Pension Trust Fund Contribution

MIDDLETOWN, OH, April 23, 2007 — AK Steel (NYSE: AKS) said that its board of directors has authorized the company to make an early $105 million contribution to its pension trust fund. Combined with an early contribution of $75 million the company made on January 31, 2007, the additional $105 million is expected to fully satisfy the company’s pension funding obligation for 2007.

Following the contribution announced today, which will be made during the 2007 second-quarter, AK Steel will have voluntarily made $539 million in early pension fund contributions in the last two years.

“Our board of directors and executive management team continue to regard funding of our retiree pension obligation as being among the highest of our priorities,” said James L. Wainscott, chairman, president and CEO.

Headquartered in Middletown, Ohio, AK Steel produces flat-rolled carbon, stainless and electrical steel products, as well as carbon and stainless tubular steel products, for automotive, appliance, construction and manufacturing markets.

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