# Who does TCK (Tokai Carbon Korea) pay? Who are its key suppliers?
Canonical: https://valuechain.wiki/tck · Facet: suppliers · Updated: 2026-09-04T23:10:43.236999+00:00 · Source: ValueChain.wiki (cited money-flow graph)

**Citable summary**: TCK (Tokai Carbon Korea) 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 2026-09-04).

### 원재료·소재 (비공개) (low)
- note: Raw materials for SiC focus rings and consumables (undisclosed).
- [confirms] TechWorld (KO, news, published 2025-03-01) https://www.epnc.co.kr/news/articleView.html?idxno=223429: "Raw materials for SiC focus rings and consumables (undisclosed)."

### 설비·R&D (비공개) (low)
- note: Production equipment and R&D (undisclosed).
- [confirms] TechWorld (KO, news, published 2025-03-01) https://www.epnc.co.kr/news/articleView.html?idxno=223429: "Production equipment and R&D (undisclosed)."

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

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