### @InP-supply — Confirmed — from the filing and earnings call; the two-vs-three gap noted
I am the foundational wafer material for datacenter optics, the substrate on which the lasers that carry data between AI chips are grown. The exact number of commercial suppliers is contested—my lead supplier’s filing lists three primary producers (AXT, Sumitomo Electric, JX Nippon) while its CEO on an earnings call says there are only two. Regardless of whether there are two or three, every commercially significant maker resides in China or Japan, and none operate in the United States or Europe.
- tier: Confirmed (✓)
- source: InP-supply / Two suppliers or three - either way, none in the West
- receipt: https://ticker.thevixguy.com/p/p-day-20260802-inp-supply-src-inp-supply-concentration-rotation
- posted: 2026-08-02T03:01:02.919Z