Corning is a provider of glass, ceramics, and optical fiber across six distinct end markets. Corning's largest segments by revenue are display glass for TVs and optical fiber for telecom networks and data centers. It also provides cover glass into smartphones, filters and substrates and glass into cars, produces pharmaceutical glass, and produces polysilicon for solar panels. Corning is a U.S. producer, and is vertically-integrated across its products and markets.