EXHIBIT 3.31 AMENDMENT TO OPERATING AGREEMENT THIS AMENDMENT TO OPERATING AGREEMENT (the "Amendment"), dated as of November 14, 1996, is entered into by and among IMCO Recycling Inc., a Delaware corporation, and Alchem Aluminum, Inc., an Indiana...Operating Agreement • January 23rd, 2004 • Imco Recycling Inc • Secondary smelting & refining of nonferrous metals • Delaware
AGREEMENT OF LIMITED PARTNERSHIP OF IMCO INDIANA PARTNERSHIP L.P. BY AND BETWEENLimited Partnership Agreement • January 23rd, 2004 • Imco Recycling Inc • Secondary smelting & refining of nonferrous metals
