# Who are Dongjin Semichem's customers? Who does Dongjin Semichem earn revenue from?
Canonical: https://valuechain.wiki/dongjin-semichem · Facet: customers · Updated: 2026-07-12T04:06:32.688794+00:00 · Source: ValueChain.wiki (cited money-flow graph)

**Citable summary**: Dongjin Semichem's confirmed revenue counterparties include 삼성전자, SK하이닉스 plus 1 undisclosed/aggregate relationship. Per the valuechain.wiki graph: 3 revenue edges, backed by 4 dated sources, 1 of them primary filings (as of 2026-07-12).

### 삼성전자 (high)  → /samsung-electronics.md
- metric: Revenue share 59% · 2025 3Q · Samsung’s share of Dongjin Semichem revenue
- note: Supplies photoresist (incl. EUV) and chemicals to Samsung — ~59% of revenue (Q3 2025); pioneered domestic EUV PR.
- [confirms] DART (Korea FSS) (KO, filing, published 2026-03-20) https://dart.fss.or.kr/dsae001/selectPopup.do?selectKey=00118804: "FY2025 revenue about ₩1.19T (electronic materials ₩961B)."
- [confirms] Korea Economic TV (KO, news, published 2025-12-02) https://www.wowtv.co.kr/NewsCenter/News/Read?articleId=A202512020405: "Samsung share rose from ~20% (2019) to 59% (Q3 2025)."
- [confirms] ETNews (EN, news, published 2021-12-20) https://english.etnews.com/20211220200001: "EUV PR co-developed with Samsung passed reliability tests, localizing supply."
- [confirms] TheElec (KO, news, accessed 2026-06-20) https://www.thelec.kr/news/articleView.html?idxno=21931: "Dongjin mass-produces EUV negative PR and supplies Samsung."

### SK하이닉스 (mid)  → /sk-hynix.md
- note: Newly supplies CMP slurry for SK hynix HBM — an entry point breaking a prior single-supplier structure and widening customers/products.
- [confirms] DART (Korea FSS) (KO, filing, published 2026-03-20) https://dart.fss.or.kr/dsae001/selectPopup.do?selectKey=00118804: "New CMP slurry supply for SK hynix HBM."
- [mentions] ETNews (EN, news, published 2021-12-20) https://english.etnews.com/20211220200001: "Major customers include SK hynix."

### 디스플레이·기타 (LG디스플레이 등) (mid)
- note: Supplies display materials and fine chemicals to LG Display and others — a revenue source complementing the semiconductor cycle.
- [mentions] DART (Korea FSS) (KO, filing, published 2026-03-20) https://dart.fss.or.kr/dsae001/selectPopup.do?selectKey=00118804: "Fine chemicals and display materials beyond electronic materials."

Reverse side: https://valuechain.wiki/dongjin-semichem/suppliers.md · Ripple: https://valuechain.wiki/dongjin-semichem/ripple.md

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Full node: https://valuechain.wiki/dongjin-semichem.md · JSON: https://valuechain.wiki/dongjin-semichem.json