ARMSTRONG WORLD INDUSTRIES INC

Armstrong World Industries, Inc. ("AWI" or the "Company") is a Pennsylvania corporation incorporated in 1891. In this report, when we refer to "we," "our," and "us," we are referring to AWI and its subsidiaries. AWI is an Americas leader in the design and manufacture of innovative interior and exterior architectural applications including ceilings, specialty walls, and exterior metal solutions. We manufacture and source products made of numerous materials, including mineral fiber, fiberglass, metal, felt, architectural resin, glass, wood, wood fiber, and glass-reinforced-gypsum. We also manufacture ceiling suspension system (grid) products through a joint venture with Worthington Enterprises, Inc., called Worthington Armstrong Venture ("WAVE").