AGREEMENT AND PLAN OF MERGER BY AND AMONG UNITED STATES STEEL CORPORATION, WP ACQUISITION HOLDING CORP. and LONE STAR TECHNOLOGIES, INC. Dated as of March 28, 2007Agreement and Plan of Merger • March 29th, 2007 • United States Steel Corp • Steel works, blast furnaces & rolling mills (coke ovens) • Delaware
AGREEMENT AND PLAN OF MERGER, dated as of March 28, 2007 (this “Agreement”), by and among UNITED STATES STEEL CORPORATION, a Delaware corporation (“Parent”),WP ACQUISITION HOLDING CORP., a Delaware corporation and a wholly owned subsidiary of Parent (“Merger Sub”), and LONE STAR TECHNOLOGIES, INC., a Delaware corporation (the “Company”). Capitalized terms used in this Agreement shall have the meanings assigned to them in Article XI, or in the applicable Section of this Agreement to which reference is made in Article XI.
