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ALCOA INC
Exchange: NYSE
Produces and sells bauxite and alumina as well as alumina-based chemicals; Produces and sells molten metal, ingot, and aluminum products which are flat-rolled, engineered or finished; Produces and sells electrical, ceramic, plastic, vinyl, and composite materials products, manufacturing equipment, gold, magnesium, and steel and titanium

Alcoa Inc.
Exchange: AMEX
Produces and sells bauxite and alumina as well as alumina-based chemicals; Produces and sells molten metal, ingot, and aluminum products which are flat-rolled, engineered or finished; Produces and sells electrical, ceramic, plastic, vinyl, and composite materials products, manufacturing equipment, gold, magnesium, and steel and titanium