JFE Holdings, Inc.(JFE ホールディングス株式会社,Jeiefuī Hōrudingusu Kabushiki-gaisha) is a corporation headquartered in Tokyo, Japan. It was formed in 2002 by the merger of NKK(日本鋼管株式会社,Nihon Kōkan Kabushiki-gaisha) and Kawasaki Steel Corporation(川崎製鉄株式会社,Kawasaki Seitetsu Kabushiki-giasha). At the time, NKK Corporation was Japan's second largest steelmaker and Kawasaki Steel was the third largest steelmaker. Both companies were major military vessel manufacturers during World War II.