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Amkor Technology is the second-largest outsourced semiconductor assembly-and-test (OSAT) provider in the world, headquartered in Tempe, Arizona.
Source: SEC Financial Statement Data Sets, quarterly period, tagged by the issuer. Segment names are the company’s own labels and are not comparable with another filer’s. Shares are of consolidated revenue and need not sum to 100%: overlapping cuts are reported, and segment×geography cross-tabs are dropped rather than counted twice.
No corporate parent — Amkor is independently publicly traded (NASDAQ: AMKR) and GLEIF confirms it as its own ultimate parent for its filed subsidiaries (e.g. Amkor Advanced Technology Taiwan), with no direct/ultimate parent reported for Amkor Technology, Inc. itself. The Kim family remains the largest shareholder bloc (down from ~57-59% in prior years after a Feb 2026 secondary offering of 10M shares) but does not hold outright majority control.
Named counterparties identified by open-source research and written only where a primary source states the relationship — never inferred from sector or co-mention. 1 customer-side. This is a partial view: it covers the relationships we could evidence, not the company's full supply base.
Amkor and TSMC press releases (both companies): TSMC will contract turnkey advanced packaging/test services from Amkor's planned Peoria, Arizona facility to serve customers of TSMC's Phoenix-area fabs, using TSMC's InFO/CoWoS packaging technologies. Firms up an October 2024 MOU. No dollar value or volume share disclosed by either party.
Scope. Absence of a counterparty here is not evidence that none exists — most commercial sourcing is confidential and never becomes public. Rows without a share figure mean no share was disclosed, not that the relationship is small.
Another tracked dossier names this company as a counterparty in its own sourced disclosure — this platform never wrote these rows on this company's own page, they are read here inverted from the dossier that disclosed them. This is a partial view: 982 additional named-counterparty rows across the corpus could not be matched to a tracked dossier by name at all (mostly non-Latin legal names), so the true count is higher than what renders here.
Qualcomm FY2025 Form 10-K: "Our primary semiconductor assembly and test suppliers are Advanced Semiconductor Engineering, Amkor Technology, Siliconware Precision Industries and STATSChipPAC." Named as an assembly/test supplier; no volume disclosed. Re-fetched and re-quoted 2026-09-17, unchanged since 2026-06-24 — still the live FY2025 10-K (fiscal year ended 2025-09-28).
Scope. This section is inverted evidence: each linked dossier wrote the original row about itself, describing its own relationship to this company. It is never a claim this company itself disclosed. Absence here is not evidence of no relationship — most of the corpus has no named-counterparty block at all yet.
Every exposure is read as a buyer dependency; the top 3 are its binding chokepoints.
As a buyer, policy pressure across its consumed materials is rising.
Descriptive trend in official policy actions on this company’s materials — a policy-pressure trend, not a price or trading signal. No forward probability is implied. Direction is measured on actions we have discovered, and discovery lags events: where the recent window is too thin to support a calm reading, the row says coverage-limited instead of easing.
🇵🇭 PH accounts for 100% of severity-weighted pressure.