# Who does HD Hyundai Heavy Industries pay? Who are its key suppliers?
Canonical: https://valuechain.wiki/hd-hyundai-heavy-industries · Facet: suppliers · Updated: 2026-07-12T03:54:59.471+00:00 · Source: ValueChain.wiki (cited money-flow graph)

**Citable summary**: HD Hyundai Heavy Industries's confirmed suppliers/cost counterparties include POSCO·현대제철 (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).

### POSCO·현대제철 (선박용 후판·강재) (high)  → /posco-holdings.md
- note: Sources ship and offshore steel plate from POSCO, Hyundai Steel and other mills at home and abroad; plate is a large share of ship material cost.
- [mentions] FSS DART (KO, filing, published 2026-03-20) https://dart.fss.or.kr/dsaf001/main.do?rcpNo=20260320000859: "Sources plate and steel for ships and offshore structures from mills at home and abroad."

### 선박 기자재·의장품 (블록·전장·항해장비) (mid)
- note: Assembles from blocks, fit-out, electrical and navigation equipment sourced from partners; the HiMSEN engine is made in-house.
- [mentions] FSS DART (KO, filing, published 2026-03-20) https://dart.fss.or.kr/dsaf001/main.do?rcpNo=20260320000859: "Sources ship equipment and fit-out from partners for assembly."

Reverse side: https://valuechain.wiki/hd-hyundai-heavy-industries/customers.md · Ripple: https://valuechain.wiki/hd-hyundai-heavy-industries/ripple.md

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Full node: https://valuechain.wiki/hd-hyundai-heavy-industries.md · JSON: https://valuechain.wiki/hd-hyundai-heavy-industries.json