# Who does ISC pay? Who are its key suppliers?
Canonical: https://valuechain.wiki/isc · Facet: suppliers · Updated: 2026-07-12T05:24:13.008+00:00 · Source: ValueChain.wiki (cited money-flow graph)

**Citable summary**: ISC 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, 0 of them primary filings (as of 2026-07-12).

### 원재료·소재 (비공개) (low)
- note: Raw materials for test sockets (undisclosed).
- [confirms] ISC (EN, ir, published 2025-05-01) https://www.isc21.co.kr: "Raw materials for test sockets (undisclosed)."

### 설비·R&D (비공개) (low)
- note: Production equipment and R&D (undisclosed).
- [confirms] ISC (EN, ir, published 2025-05-01) https://www.isc21.co.kr: "Production equipment and R&D (undisclosed)."

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

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