Supplemental to the Indenture dated as of May 15, 1983, as supplemented by a First Supplemental Indenture dated as of January 1, 1986, a Second Supplemental Indenture dated as of June 30, 1989, a Third Supplemental Indenture dated as of July 19, 1989,...Fifth Supplemental Indenture • April 19th, 1999 • Alcan Aluminium LTD /New • Primary production of aluminum
