# Who does Komatsu pay? Who are its key suppliers?
Canonical: https://valuechain.wiki/komatsu · Facet: suppliers · Updated: 2026-09-23T09:58:34.926218+00:00 · Source: ValueChain.wiki (cited money-flow graph)

**Citable summary**: Komatsu's confirmed suppliers/cost counterparties include Ouster, Cummins. Per the valuechain.wiki graph: 2 cost edges, backed by 3 dated sources, 0 of them primary filings (as of 2026-09-23).

### Ouster (high)  → /ouster.md
- note: Procures lidar for autonomous mining equipment from Ouster (multimillion-dollar agreement, REV7).
- [confirms] Business Wire (EN, news, published 2025-05-08) https://www.businesswire.com/news/home/20250508206993/en/Ouster-to-Supply-Lidar-Sensors-for-Komatsus-Suite-of-Autonomous-Offerings: "Ouster to supply lidar for Komatsu autonomous offerings"
- [confirms] Mining.com (EN, news, published 2025-05-08) https://www.mining.com/web/ouster-to-supply-lidar-sensors-for-komatsus-suite-of-autonomous-offerings/: "Ouster will supply lidar for Komatsu's autonomous mining equipment through a multimillion-dollar agreement; REV7 sensors replace older 2D lidar."

### Cummins (high)  → /cummins.md
- note: Primary engine supplier for ultra-class mining trucks (830E/930E); 2024 three-way ethanol-diesel Dual Fuel retrofit program with Vale.
- [confirms] Komatsu (EN, ir, published 2024-08-27) https://www.komatsu.jp/en/newsroom/2024/20240827: "Strategic agreement to retrofit 830E/930E trucks with Cummins ethanol-diesel engines."

### M&A (말와 포레스트·SRC 리매뉴·조이글로벌) (high)
- note: Komatsu's M&A deliberately builds a mining-and-aftermarket moat that is less exposed to the new-equipment volume cycle: the 2017 ~$3.7B Joy Global deal internalized underground and ultra-class equipment, and 2026 bolt-ons — SRC of Lexington's remanufacturing assets and forestry maker Malwa Forest — extend into circular-economy and parts-reman revenue. The weaker new-machine sales get, the more reman, parts and service defend the margin.
- [confirms] Komatsu (EN, filing, published 2026-04-28) https://www.komatsu.jp/en/-/media/home/ir/library/financial/en/2603q4_e.pdf: "Acquired SRC of Lexington reman assets (Feb 2026); completed Malwa Forest AB acquisition (Apr 2026)."

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

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