Sumitomo Metal Mining → ASE Technology
As of 2026-09-05, Sumitomo Metal Mining is a tracked supplier of ASE Technology. Sumitomo Metal Mining is a major in Materials (headquartered in Japan); ASE Technology is a leader in OSAT (headquartered in Taiwan). Sumitomo Metal Mining has 9 tracked customers; ASE Technology has 20 tracked suppliers.
Data as of 2026-09-05 · relationship type: tracked supplier → customer · both names resolve in companies.json · no dollar amount is shown unless it already sits on a company record, and none is invented here
Why this edge matters
Sumitomo Metal Mining (major in Materials) is a tracked supplier of ASE Technology (leader in OSAT). Materials maker supplying bonding wire, plating, and target metals. World's largest OSAT, includes SPIL; key advanced packaging partner. The edge is one of 20 tracked suppliers of ASE Technology and one of 9 tracked customers of Sumitomo Metal Mining.
Source: derived from both company records and the counted edges.
The two companies
Sumitomo Metal Mining (supplier)
Materials maker supplying bonding wire, plating, and target metals.
ASE Technology (customer)
World's largest OSAT, includes SPIL; key advanced packaging partner.
Other tracked suppliers of ASE Technology
Other tracked customers of Sumitomo Metal Mining
Cite as: wafergraph, “Sumitomo Metal Mining → ASE Technology — supplier relationship in the semiconductor supply chain”, https://wafergraph.com/relationship/sumitomo_metal_mining/ase/ (data as of 2026-09-05).
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