AMENDMENT NO. 1 TO AGREEMENT AND PLAN OF MERGER AMENDMENT NO. 1 (this "Amendment No. 1"), dated as of September 27, 1999, amending the Agreement and Plan of Merger (the "Merger Agreement"), dated as of July 15, 1999, among ASARCO CYPRUS INCORPORATED,...Agreement and Plan of Merger • September 28th, 1999 • Asarco Inc • Primary smelting & refining of nonferrous metals • Delaware
