For 23 listed companies — Ultra Clean Holdings, BWX Technologies, AeroVironment, STMicroelectronics, Qorvo, Symbotic, Tower Semiconductor, indie Semiconductor, Aichi Steel, Legrand, Cameco, Siltronic, Oklo, TOPPAN Holdings, Taihan Cable and Solution, Mersen, Galaxy Magnets, Broadex, Innuovo, Jinhong Gas, Kehua, Jianghai Capacitor, and Koh Young — give one row per company listing named suppliers from primary filings with their share of purchases or cost of goods sold and the denominator for every share; where a supplier is named without a share, say so; where no supplier is named, say "filing checked, no names disclosed" or report the anonymised share; show both amounts and the arithmetic where a filing gives a supplier amount and a total denominator, and never guess a name or estimate a share.
This report covers 18 of the 23 requested companies, with 62 validated supplier-disclosure facts drawn from annual reports, 10-K/20-F/6-K filings, registration documents, prospectuses and business reports dated 2007 to 2026. Five companies — Aichi Steel, TOPPAN Holdings, Mersen, Innuovo Technology and Koh Young Technology — were not resolved in this research pass. Several company entries rest on a single source, so the report is partly single-sourced.
Aichi Steel, TOPPAN Holdings, Mersen, Innuovo Technology and Koh Young Technology. No validated filing evidence was collected for these five requested companies; they are listed here rather than shown as invented data rows.
| Company | Supplier disclosure status | Facts | Source quality | Source |
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Method: 18 reporting-company rows assembled from 62 supplier-disclosure facts extracted from primary filings and company-hosted annual reports (SEC 10-K, 20-F, 6-K, Form SD, prospectuses, registration documents, cninfo and other exchange disclosures), filing dates 2007–2026, compiled 2026. Each fact records supplier or anonymised status, relationship, disclosed share with its stated denominator, supplier amount and filing name and date; unresolved dates are shown as unresolved, never guessed. Percentages are preserved exactly as filed and never computed unless both supplier amount and total denominator appear in the filing. Non-target subsidiary rows (Broadex Technologies UK, Qorvo International Pte Ltd), a customer-side Walmart disclosure, a reversed ST-to-AWS line, a BWXT internal subsidiary and a Taihan headquarters line were excluded per validation. Sources span multiple independent hosts; rows relying on mirrors are tagged secondary. Partly single-sourced.