Sumco — Supply Chain & Business Relationships

Every relationship below is sourced to a verbatim quote from a public company filing that names the counterparty, with a one-click link to the original document.

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1 customer1 source filing

Fewer than 3 sourced relationships so far. This page stays out of search results until more filings name this company.

Customers (companies it supplies)

Supplies to → UMC

Filed 2026-04-30 · 67 days ago

“we purchased a majority of our silicon wafers from Shin-Etsu Handotai Corporation, or Shin-Etsu, GlobalWafers, Sumco Group (including Sumco Corporation and Formosa Sumco Technology Corporation) and Soitec.”
— UMC 20-F, filed 2026-04-30 · View source filing ↗