Alcoa signed a long-term contract to supply aluminum sheet and plate products to Boeing, the world’s largest aerospace company. The multiyear contract, which is valued at more than $1 billion, is the largest ever between the two companies and makes Alcoa sole supplier to Boeing for wing skins on all of its metallic structure airplanes. Alcoa plate products, used in applications such as wing ribs, wing skins or other structural parts of the aircraft, will be on every Boeing platform, including the 787 Dreamliner. The deal also establishes a foundation for continued collaboration on new, high-strength and corrosion-resistant alloys, including aluminum-lithium that could be used for complex structural applications.