Corning's Supply Chain: Who Buys Its Glass, and Who Supplies the Materials
Corning turns raw minerals into Gorilla Glass, display glass, and the optical fiber wiring AI data centers. Here's who its biggest customers are, and where the materials behind that glass actually come from.
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Corning has been a glass company since 1851, which makes it an odd fit for headlines about AI infrastructure. But two of its businesses now sit at opposite ends of the tech industry: Gorilla Glass on the phone in your pocket, and optical fiber running through the data centers training large language models.
The short answer
Corning's supply chain splits into customers and raw materials:
- Device makers: Apple uses Gorilla Glass and Ceramic Shield on every iPhone; Samsung buys display glass and also holds roughly a 7.9% stake in Corning.
- AI infrastructure: Meta signed a roughly $6 billion deal for Corning optical fiber, and Amazon and NVIDIA are also major buyers of Corning's data-center connectivity products.
- Raw materials: Umicore supplies germanium for fiber cores, and Rio Tinto supplies the borates used in Corning's specialty glass formulas.
The full interactive map is on Corning's supply chain page.
Who buys Corning's glass
Apple is Corning's most visible customer: Gorilla Glass and Ceramic Shield have protected iPhone screens for over a decade. Samsung Electronics buys display glass too, and the relationship goes further than a typical customer contract. Samsung Display owns close to 8% of Corning outright, tying the two companies together as investor and buyer at once.
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