Sumitomo Metal Mining
Sumitomo Metal Mining is a major in the Materials segment of the semiconductor & AI supply chain, headquartered in Japan. Its key customers include ASE Technology, Amkor Technology, TSMC.
Materials maker supplying bonding wire, plating, and target metals.
- Ticker
- TSE: 5713
- Headquarters
- Japan
- Revenue
- $10.9B (FY2026) · +24.1% YoY
- Net income
- $1.1B
- Operating margin
- 16.4%
- Market position
- major
- Value-chain segment
- Packaging Materials (Leadframes, Bonding Wire), Sputtering Targets
- Key products
- Gold and copper bonding wire for IC packaging, Sputtering targets (Ni, Co, Cu, precious metals), Electroless nickel plating materials, High-purity metals and alloys for electronics, Lithium nickel oxide cathode materials for batteries
About Sumitomo Metal Mining
Sumitomo Metal Mining, headquartered in Japan, operates in the Packaging Materials (Leadframes, Bonding Wire) and Sputtering Targets segments of the semiconductor & AI supply chain and is positioned as a market major there. Its key products include Gold and copper bonding wire for IC packaging, Sputtering targets (Ni, Co, Cu, precious metals), Electroless nickel plating materials, High-purity metals and alloys for electronics, Lithium nickel oxide cathode materials for batteries. wafergraph maps 9 tracked customers for Sumitomo Metal Mining across the value chain. It has a supply-chain criticality score of 68/100, with 236 companies downstream of it.
Role in the chain
Sumitomo Metal Mining is a market major in Materials (Packaging Materials (Leadframes, Bonding Wire)), headquartered in Japan. Materials maker supplying bonding wire, plating, and target metals.
Diligence questions
- The dataset names 9 tracked customers for Sumitomo Metal Mining. How concentrated is demand among those names, and which of them have a documented second source in this graph?
- Sumitomo Metal Mining is headquartered in Japan. What jurisdiction, export-control or logistics risk sits at that HQ, versus at the fabs or plants the filings actually name?
- Sumitomo Metal Mining trades as TSE:5713. What does the latest reported period say about capacity and backlog versus the graph position above?
- Before treating any edge as a verified relationship, check the provenance labels on the company page and the method note at /methodology.
Key products
- Gold and copper bonding wire for IC packaging
- Sputtering targets (Ni, Co, Cu, precious metals)
- Electroless nickel plating materials
- High-purity metals and alloys for electronics
- Lithium nickel oxide cathode materials for batteries
Customers
More Materials companies
Compare with
Kyocera · JX Advanced Metals · Ningbo Jiangfeng Electronic Material (Konfoong) · Element Solutions · Tosoh · Materion
Sources
Open the interactive supply-chain view →
Cite as: wafergraph, “Sumitomo Metal Mining — supply chain, financials & market position”, https://wafergraph.com/company/sumitomo_metal_mining (data as of 2026-09-05).
Track the chain
What moved in the semiconductor supply chain — This Week in the Chain, the free weekly wafergraph briefing.
Subscribe to the free weekly briefing →
Free · no login · 615 companies, updated weekly