# Who are SK Siltron's customers? Who does SK Siltron earn revenue from?
Canonical: https://valuechain.wiki/sk-siltron · Facet: customers · Updated: 2026-07-12T04:11:10.076227+00:00 · Source: ValueChain.wiki (cited money-flow graph)

**Citable summary**: SK Siltron's confirmed revenue counterparties include SK하이닉스, 인피니언, 삼성전자 plus 1 undisclosed/aggregate relationship. Per the valuechain.wiki graph: 4 revenue edges, backed by 5 dated sources, 0 of them primary filings (as of 2026-07-12).

### 두산그룹 (2026 인수) (high)
- note: Doosan Group acquires 100% of SK Siltron (2026, ~KRW 5T).
- [confirms] The Korea Economic Daily (Hankyung) (KO, news, published 2026-05-17) https://www.hankyung.com/article/2026051719391: "The acquisition is sized in the mid-5-trillion-won range and is structured to secure the entire 100% stake."
- [confirms] KED Global (EN, news, published 2026-05-17) https://www.kedglobal.com/mergers-acquisitions/newsView/ked202605170001: "Doosan Group is set to close a deal to acquire 100% of SK Siltron Co., a roughly 5.5 trillion won ($3.7 billion) transaction."

### SK하이닉스 (high)  → /sk-hynix.md
- note: Supplies 300mm wafers to SK hynix and co-develops HBM4 ultra-flat wafers — the key relationship, with group synergy giving direct exposure to the AI-memory up-cycle.
- [confirms] ICN Magazine (KO, news, published 2026-01-15) https://icnweb.kr/2026/79720/: "SK hynix builds early HBM4 wafer supply and co-develops with affiliate SK Siltron."
- [confirms] BizWatch (KO, news, published 2025-05-23) https://news.bizwatch.co.kr/article/industry/2025/05/23/0043: "SK Siltron, No.3 in 300mm, partners with SK hynix and Samsung."

### SiC 전력반도체·전기차 고객 (비공개) (mid)
- metric: Market share 15% · 2025 · global SiC wafer share
- note: Supplies 6/8-inch SiC wafers for power electronics and EVs; top-5 globally (~15%).
- [confirms] Mordor Intelligence (EN, analysis, published 2025-01-01) https://www.mordorintelligence.com/industry-reports/sic-wafer-market: "SK Siltron is a top-5 SiC supplier, ~15%, 500k+ units/yr."

### 인피니언 (mid)  → /infineon.md
- note: Supplies SiC wafers to Infineon — the leading power-semiconductor customer, representing SK Siltron's automotive/power demand exposure in its SiC leg.
- [confirms] Infineon (EN, ir, published 2025-05-01) https://www.infineon.com/cms/en/about-infineon/investor/: "Supplies SiC wafers to Infineon Technologies."
- [confirms] TheElec (KO, news, published 2025-01-01) https://www.thelec.kr/news/articleView.html?idxno=52459: "Supplies SiC wafers to Infineon Technologies."

### 삼성전자 (mid)  → /samsung-electronics.md
- note: Supplies 300mm silicon wafers to Samsung — a large customer outside the SK group that broadens the wafer demand base.
- [confirms] BizWatch (KO, news, published 2025-05-23) https://news.bizwatch.co.kr/article/industry/2025/05/23/0043: "SK Siltron supplies wafers to Samsung and other global leaders."

Reverse side: https://valuechain.wiki/sk-siltron/suppliers.md · Ripple: https://valuechain.wiki/sk-siltron/ripple.md

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Full node: https://valuechain.wiki/sk-siltron.md · JSON: https://valuechain.wiki/sk-siltron.json