# Who does Denso pay? Who are its key suppliers?
Canonical: https://valuechain.wiki/denso · Facet: suppliers · Updated: 2026-09-11T19:25:09.49825+00:00 · Source: ValueChain.wiki (cited money-flow graph)

**Citable summary**: Denso discloses no named confirmed suppliers/cost counterparties; 2 relationships are tracked as undisclosed/aggregate. Per the valuechain.wiki graph: 2 cost edges, backed by 3 dated sources, 0 of them primary filings (as of 2026-09-11).

### JASM (TSMC 구마모토 합작, 소수 공동투자) (high)
- metric: Amount $3.3B · 2030년까지 자체 반도체 투자
- note: Denso co-invests as a minority partner with Sony and Toyota in TSMC's Kumamoto fab (JASM) to secure automotive-chip supply. Separately it plans to invest 500 billion yen (about $3.3 billion) in its own semiconductor business by 2030 and triple that business by 2035.
- [confirms] Nikkei Asia (EN, news, published 2025-05-01) https://asia.nikkei.com/business/tech/semiconductors/toyota-supplier-denso-to-invest-3.3bn-in-chip-business: "Nikkei: Toyota supplier Denso to invest $3.3 billion in its chip business."
- [confirms] Power Semiconductors Weekly (EN, news, published 2023-10-26) https://www.powersemiconductorsweekly.com/2023/10/26/denso-to-invest-500-billion-yen-by-2030/: "DENSO will invest 500 billion yen in semiconductors by 2030 and triple the scale of its chip business by 2035."

### Coherent Silicon Carbide LLC (SiC 소수지분) (high)
- metric: Amount $500M
- note: Denso invested $500 million for a 12.5% minority stake in Coherent's SiC subsidiary Silicon Carbide LLC (closed December 2023). Mitsubishi Electric invested $500 million on the same terms, for $1 billion total. The stake secures long-term SiC wafer supply.
- [confirms] Coherent / GlobeNewswire (EN, news, published 2023-12-04) https://www.globenewswire.com/news-release/2023/12/04/2790493/0/en/Coherent-s-Silicon-Carbide-Semiconductor-Business-Completes-1-Billion-in-Investments-From-DENSO-and-Mitsubishi-Electric.html: "DENSO and Mitsubishi Electric each invested $500 million for a 12.5% non-controlling interest in Coherent's SiC business; the $1 billion aggregate investment closed on December 4, 2023."

### Coherent Silicon Carbide LLC (SiC 웨이퍼) (high)
- note: Denso procures SiC wafers, the core material for SiC power semiconductors used in electrification inverters, from Coherent's SiC subsidiary (Silicon Carbide LLC) under a long-term supply arrangement covering 150mm and 200mm wafers. Denso also took a $500 million minority stake in that business.
- [confirms] Coherent / GlobeNewswire (EN, news, published 2023-12-04) https://www.globenewswire.com/news-release/2023/12/04/2790493/0/en/Coherent-s-Silicon-Carbide-Semiconductor-Business-Completes-1-Billion-in-Investments-From-DENSO-and-Mitsubishi-Electric.html: "The Business entered into arm's-length long-term supply arrangements with DENSO and Mitsubishi Electric supporting their demand for 150 mm and 200 mm silicon carbide substrates and epitaxial wafers."

### 차량용 반도체·파운드리 조달 (ROHM·르네사스·TSMC 등) (mid)
- note: Until it in-houses SiC, Denso sources automotive chips such as microcontrollers and power semiconductors from ROHM and Renesas, and relies on foundries including TSMC Kumamoto (JASM). The 2021-2022 automotive-chip shortage that forced Toyota production cuts made supply security a strategic priority.
- [mentions] Nikkei Asia (EN, news, published 2025-05-01) https://asia.nikkei.com/business/tech/semiconductors/toyota-supplier-denso-to-invest-3.3bn-in-chip-business: "Nikkei: Denso will invest $3.3 billion (500 billion yen) in its chip business to secure stable automotive-semiconductor supply."
- [mentions] Sisa Journal e (KO, news, published 2023-10-27) https://www.sisajournal-e.com/news/articleView.html?idxno=304982: "Denso announced a 500 billion yen (about 4.5 trillion won) semiconductor investment plan to address the chip shortage and expand electrification."

### ROHM (SiC 파워반도체, 인수 제안 검토) (low)
- metric: Amount ¥1.3T
- note: In March 2026, reports emerged that Denso had proposed to acquire ROHM, a leader in SiC automotive power semiconductors, for about 1.3 trillion yen. If completed it would complete the Toyota Group's semiconductor vertical integration, but it remains a proposal and is not confirmed.
- [mentions] Global Economic (KO, news, published 2026-03-07) https://www.g-enews.com/article/Global-Biz/2026/03/2026030718312721980c8c1c064d_1: "Global Economic: Denso is reportedly pursuing a ~1.3 trillion yen acquisition of ROHM, a SiC automotive power-semiconductor leader, to complete Toyota Group's semiconductor vertical integration."

Reverse side: https://valuechain.wiki/denso/customers.md · Ripple: https://valuechain.wiki/denso/ripple.md

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Full node: https://valuechain.wiki/denso.md · JSON: https://valuechain.wiki/denso.json