# Who does BESI pay? Who are its key suppliers?
Canonical: https://valuechain.wiki/besi · Facet: suppliers · Updated: 2026-07-12T03:42:35.141415+00:00 · Source: ValueChain.wiki (cited money-flow graph)

**Citable summary**: BESI discloses no named confirmed suppliers/cost counterparties; 2 relationships are tracked as undisclosed/aggregate. Per the valuechain.wiki graph: 2 cost edges, backed by 1 dated sources, 1 of them primary filings (as of 2026-07-12).

### 정밀 부품·광학 (비공개) (low)
- note: Outsources ultra-precision motion/optics parts (suppliers undisclosed) — nanometer alignment accuracy is core to tool performance, so this supply chain's quality is competitiveness itself.
- [mentions] BESI Investor Relations (EN, filing, published 2026-02-19) https://www.besi.com/news-investors/reports-presentations/: "Annual report: depends on precision-parts supply."

### 계측·모션 모듈 (비공개) (low)
- note: Buys metrology/motion-control modules (undisclosed) — essential sub-modules for bond alignment and inspection, where sourcing stability drives lead times.
- [mentions] BESI Investor Relations (EN, filing, published 2026-02-19) https://www.besi.com/news-investors/reports-presentations/: "Annual report: sources parts and modules."

Reverse side: https://valuechain.wiki/besi/customers.md · Ripple: https://valuechain.wiki/besi/ripple.md

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Full node: https://valuechain.wiki/besi.md · JSON: https://valuechain.wiki/besi.json