# Who are Sumitomo Metal Mining's customers? Who does Sumitomo Metal Mining earn revenue from?
Canonical: https://valuechain.wiki/sumitomo-metal-mining · Facet: customers · Updated: 2026-09-11T15:35:54.953409+00:00 · Source: ValueChain.wiki (cited money-flow graph)

**Citable summary**: Sumitomo Metal Mining's confirmed revenue counterparties include 파나소닉 에너지, Toyota. Per the valuechain.wiki graph: 2 revenue edges, backed by 7 dated sources, 1 of them primary filings (as of 2026-09-11).

### 파나소닉 에너지 (high)  → /panasonic-energy.md
- metric: capacity 60,000 tonnes · →120k(2028)→180k(2031) · NCA cathode capacity expansion
- note: Key cathode (NCA) materials supplier to Panasonic Energy.
- [mentions] MarketScreener (EN, research, published 2026-06-01) https://www.marketscreener.com/quote/stock/SUMITOMO-METAL-MINING-CO--6491216/consensus/: "Analyst consensus — despite the FY2026 profit surge (copper/gold), slowing battery-material demand is the key watch item for the Materials segment."
- [confirms] Sumitomo Metal Mining (EN, filing, published 2026-05-11) https://www.smm.co.jp/en/news/release/uploaded_files/20260511_E_full.pdf: "Materials (cathode) segment revenue JPY 284.5bn (-4.0%), segment income JPY 15.3bn (back to profit as prior-year battery-material impairments dropped out). Growth in EV/HEV battery-material demand slowed, offset by electronic-parts materials."
- [mentions] KOTRA (KO, news, published 2025-11-01) https://dream.kotra.or.kr/kotranews/cms/newsHotClip/actionKotraBoardHotClipDetail.do?MENU_ID=1360&CONTENTS_NO=1&pNttSn=208283: "Sumitomo Metal Mining is a core axis of Japan's battery-mineral supply chain, supplying cathode to Panasonic (Tesla)."
- [confirms] MINING.COM (EN, news, published 2022-11-17) https://www.mining.com/web/sumitomo-metal-aims-to-boost-battery-materials-output/: "supplies the nickel-cobalt-aluminum (NCA) cathode materials for the Panasonic lithium-ion batteries used in Tesla EVs"
- [confirms] Toyo Keizai (JA, news, published 2022-06-01) https://toyokeizai.net/articles/-/575838: "Panasonic is Sumitomo Metal Mining's largest battery-material customer; it supplies most of the material for Panasonic's Tesla cells"
- [confirms] Sumitomo Metal Mining (EN, ir, published 2021-07-06) https://www.smm.co.jp/en/news/release/2021/07/001456.html: "NCA cathode capacity: 5,000 t/mo (2021) to a 10,000 t/mo target (2027); ¥47bn Besshi/Harima expansion."

### Toyota (high)  → /toyota.md
- note: Joint development agreement for mass production of all-solid-state battery cathode materials (Oct 2025, collaboration since 2021); Toyota targets 2027-28 ASSB launch.
- [mentions] Sumitomo Metal Mining (EN, filing, published 2026-05-11) https://www.smm.co.jp/en/news/release/uploaded_files/20260511_E_full.pdf: "The Materials segment cites next-gen battery materials (incl. solid-state) as a growth axis, though FY2026 battery-material demand growth slowed by region."
- [confirms] Sumitomo Metal Mining (EN, ir, published 2025-10-08) https://www.smm.co.jp/en/news/release/2025/10/002036.html: "Joint development agreement for mass production of ASSB cathode materials for BEVs."

Reverse side: https://valuechain.wiki/sumitomo-metal-mining/suppliers.md · Ripple: https://valuechain.wiki/sumitomo-metal-mining/ripple.md

---
Full node: https://valuechain.wiki/sumitomo-metal-mining.md · JSON: https://valuechain.wiki/sumitomo-metal-mining.json