AK Steel Holding (AKS)

Research and Development

The Company conducts a broad range of research and development activities aimed at improving existing products and manufacturing processes and developing new products and processes. Research and development costs incurred in 2007, 2006 and 2005 were $8.0, $6.6 and $6.7, respectively.

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Table of Contents

Research and Development

The Company conducts a broad range of research and development activities aimed at improving existing products and manufacturing processes and developing new products and processes. Research and development costs incurred in 2006, 2005 and 2004 were $6.6, $6.7 and $6.7, respectively.

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Table of Contents

Research and Development

The Company conducts a broad range of research and development activities aimed at improving existing products and manufacturing processes and developing new products and processes. Research and development costs incurred in 2005, 2004 and 2003 were $6.7, $6.7 and $13.8, respectively. Research and developments costs remained flat in 2005 compared to 2004 and costs were lower in 2004 compared to 2003 as a result of cost-cutting measures instituted in the latter part of 2003.

Research and Development

AK Steel conducts a broad range of research and development activities aimed at improving existing products and manufacturing processes and developing new products and processes. Research and development costs incurred in 2004, 2003 and 2002 were $6.7, $13.8 and $13.6, respectively. Research and developments costs were lower in 2004 as a result of cost cutting measures instituted in the latter part of 2003.