CoorsTek, Inc. — AI supply-chain exposure

CoorsTek is a private US maker of technical ceramics, supplying the unglamorous but essential hardware inside semiconductor process equipment — ceramic chamber components, wafer-handling parts, and consumables that survive the extreme heat, plasma, and corrosive chemistries of a fab tool. It builds none of the chips and none of the tools outright; it supplies the wear parts and structural ceramics that let those tools run reliably.

Its structural hook is tied to foundry capacity. Every etch, deposition, and cleaning tool depends on ceramic components that must be replaced on a cycle, so demand tracks how hard the world's fabs are running — and AI has them running hard. The model reads CoorsTek as a low-centrality supplier rather than a bottleneck, but its consumable-heavy position gives it steady exposure to fab utilization: as long as wafers move, the ceramics wear out and get reordered.