| The new contract is the largest ever signed 
				between the two companies, said Alcoa, a longtime Boeing 
				supplier. It did not disclose a precise value or time frame.
 Alcoa has been expanding its aerospace business, and in June 
				announced a $2.85 billion deal to buy jet engine part maker 
				Firth Rixson.
 
 Though it helped create the modern aluminum industry more than a 
				century ago, Alcoa is eager to produce higher-margin, 
				specialized parts for aerospace and automotive customers, even 
				if they contain other metals or no aluminum at all.
 
 Alcoa said the agreement announced on Thursday "establishes a 
				foundation for continued collaboration" on new alloys, including 
				aluminum-lithium.
 
 The deal makes Alcoa the sole supplier of wing skins for Boeing 
				airplanes that have a metallic structure.
 
 (Reporting by Allison Martell in Toronto; Editing by Jeffrey 
				Benkoe)
 
 
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