# Who does Ecopro HN pay? Who are its key suppliers?
Canonical: https://valuechain.wiki/ecopro-hn · Facet: suppliers · Updated: 2026-10-09T13:13:06.366+00:00 · Source: ValueChain.wiki (cited money-flow graph)

**Citable summary**: Ecopro HN's confirmed suppliers/cost counterparties include 에코프로 plus 2 undisclosed/aggregate relationships. Per the valuechain.wiki graph: 3 cost edges, backed by 1 dated sources, 1 of them primary filings (as of 2026-10-09).

### 원재료 매입처 (활성탄·이온교환수지·필터 프레임, 비공개) (high)
- metric: Amount 12,129,000,000원 · 2026 상반기 · Raw-material purchases
- note: H1 2026 raw-material purchases KRW 12.1bn: activated carbon KRW 3.12bn (25.7%), ion-exchange resin KRW 2.05bn (16.9%), filter frames KRW 2.96bn (24.4%), other KRW 4.0bn. Multiple domestic and overseas suppliers, names not disclosed.
- [confirms] FSS DART (KO, filing, published 2026-08-14) https://dart.fss.or.kr/dsaf001/main.do?rcpNo=20260814001912: "Key raw materials (KRW m): activated carbon 3,116; ion-exchange resin 2,054; filter frames 2,959; other 4,000; total 12,129. Multiple suppliers; names omitted."

### 왕산전기 (계열사) (high)
- metric: Amount 2,067,100,000원 · 2026 상반기 · Related-party purchases
- note: Purchases from group affiliate Wangsan Electric: KRW 2.07bn in H1 2026 (KRW 1.06bn a year earlier), the largest related-party purchase.
- [confirms] FSS DART (KO, filing, published 2026-08-14) https://dart.fss.or.kr/dsaf001/main.do?rcpNo=20260814001912: "Related-party transactions (KRW thousand): purchases from large-business-group affiliate Wangsan Electric 2,067,100 (1,059,559 in H1 2025)."

### 에코프로 (high)  → /ecopro.md
- metric: Amount 1,477,438,000원 · 2026 상반기 · Related-party purchases
- note: Purchases and other transactions with parent Ecopro (shared services etc.): KRW 1.48bn in H1 2026 (KRW 1.23bn a year earlier).
- [confirms] FSS DART (KO, filing, published 2026-08-14) https://dart.fss.or.kr/dsaf001/main.do?rcpNo=20260814001912: "Related-party transactions (KRW thousand): purchases from parent Ecopro 1,477,438 in H1 2026 (1,228,539 in H1 2025)."

Reverse side: https://valuechain.wiki/ecopro-hn/customers.md · Ripple: https://valuechain.wiki/ecopro-hn/ripple.md

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Full node: https://valuechain.wiki/ecopro-hn.md · JSON: https://valuechain.wiki/ecopro-hn.json