JSR → United Microelectronics (UMC)
As of 2026-09-05, JSR is a tracked supplier of United Microelectronics (UMC). JSR is a leader in Materials (headquartered in Japan); United Microelectronics (UMC) is a major in Foundry (headquartered in Taiwan). JSR has 8 tracked customers; United Microelectronics (UMC) has 24 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
JSR (leader in Materials) is a tracked supplier of United Microelectronics (UMC) (major in Foundry). Top photoresist maker incl. EUV resists; taken private by JIC in 2024. Taiwan's second foundry, strong in mature and specialty nodes. The edge is one of 24 tracked suppliers of United Microelectronics (UMC) and one of 8 tracked customers of JSR.
Source: derived from both company records and the counted edges.
Concentration / risk note
JSR is positioned as a leader in Materials, so this edge is harder to replace than a challenger or niche supplier.
Basis: supplier position. Omitted on edges where the graph does not back a concentration claim.
The two companies
JSR (supplier)
Top photoresist maker incl. EUV resists; taken private by JIC in 2024.
United Microelectronics (UMC) (customer)
Taiwan's second foundry, strong in mature and specialty nodes.
Other tracked suppliers of United Microelectronics (UMC)
Other tracked customers of JSR
Cite as: wafergraph, “JSR → United Microelectronics (UMC) — supplier relationship in the semiconductor supply chain”, https://wafergraph.com/relationship/jsr/umc/ (data as of 2026-09-05).
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