# Who does HD Korea Shipbuilding & Offshore Engineering pay? Who are its key suppliers?
Canonical: https://valuechain.wiki/hd-korea-shipbuilding-offshore-engineering · Facet: suppliers · Updated: 2026-07-12T04:15:03.162+00:00 · Source: ValueChain.wiki (cited money-flow graph)

**Citable summary**: HD Korea Shipbuilding & Offshore Engineering's confirmed suppliers/cost counterparties include POSCO·현대제철 (연결 선박용 후판·강재) plus 1 undisclosed/aggregate relationship. Per the valuechain.wiki graph: 2 cost edges, backed by 1 dated sources, 1 of them primary filings (as of 2026-07-12).

### HD현대중공업 (조선 자회사) (high)  → /hd-hyundai-heavy-industries.md
- note: As the shipbuilding holding, the largest shareholder of HD Hyundai Heavy (the world's largest yard).
- [confirms] FSS DART (KO, filing, published 2026-03-20) https://dart.fss.or.kr/dsaf001/main.do?rcpNo=20260320000859: "HD Korea Shipbuilding is the largest shareholder of HD Hyundai Heavy."
- [confirms] FSS DART (KO, filing, published 2026-03-20) https://dart.fss.or.kr/dsaf001/main.do?rcpNo=20260320001032: "Key subsidiary HD Hyundai Heavy Industries (shipbuilding)."

### POSCO·현대제철 (연결 선박용 후판·강재) (high)  → /posco-holdings.md
- note: Across the three yards, sources ship steel plate from POSCO, Hyundai Steel and others; plate is a large share of consolidated material cost.
- [mentions] FSS DART (KO, filing, published 2026-03-20) https://dart.fss.or.kr/dsaf001/main.do?rcpNo=20260320001032: "Sources ship plate for the three shipbuilding yards."

### HD현대미포 (중형선 자회사) (high)
- note: Key subsidiary HD Hyundai Mipo, specialized in medium ships (product/MR tankers, mid-size boxships).
- [confirms] FSS DART (KO, filing, published 2026-03-20) https://dart.fss.or.kr/dsaf001/main.do?rcpNo=20260320001032: "Key subsidiary HD Hyundai Mipo."

### HD현대삼호 (대형선 자회사) (high)
- note: Key subsidiary HD Hyundai Samho, specialized in large ships (VLCCs, mega boxships, LNG carriers).
- [confirms] FSS DART (KO, filing, published 2026-03-20) https://dart.fss.or.kr/dsaf001/main.do?rcpNo=20260320001032: "Key subsidiary HD Hyundai Samho."

### 선박 기자재·의장품 (연결) (mid)
- note: Across the yards, assembles from blocks, fit-out, electrical and navigation equipment from partners.
- [mentions] FSS DART (KO, filing, published 2026-03-20) https://dart.fss.or.kr/dsaf001/main.do?rcpNo=20260320001032: "Sources ship equipment and fit-out from partners."

Reverse side: https://valuechain.wiki/hd-korea-shipbuilding-offshore-engineering/customers.md · Ripple: https://valuechain.wiki/hd-korea-shipbuilding-offshore-engineering/ripple.md

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Full node: https://valuechain.wiki/hd-korea-shipbuilding-offshore-engineering.md · JSON: https://valuechain.wiki/hd-korea-shipbuilding-offshore-engineering.json