Mitsui High-tec → Tongfu Microelectronics
Yes, wafergraph tracks Mitsui High-tec as a supplier of Tongfu Microelectronics, as of 2026-09-16. Tongfu Microelectronics sources from 8 tracked suppliers in this dataset; Mitsui High-tec is positioned as a leader in Materials, so this edge is harder to replace than a challenger or niche supplier.
Data as of 2026-09-16 · 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
Mitsui High-tec (leader in Materials) is a tracked supplier of Tongfu Microelectronics (major in OSAT). Leading leadframe maker and precision stamping specialist. Chinese OSAT and AMD's main packaging partner via JV fabs. The edge is one of 8 tracked suppliers of Tongfu Microelectronics and one of 13 tracked customers of Mitsui High-tec.
Source: derived from both company records and the counted edges.
Concentration / risk note
Mitsui High-tec 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
Mitsui High-tec (supplier)
Leading leadframe maker and precision stamping specialist.
Tongfu Microelectronics (customer)
Chinese OSAT and AMD's main packaging partner via JV fabs.
Other tracked suppliers of Tongfu Microelectronics
Other tracked customers of Mitsui High-tec
Cite as: wafergraph, “Mitsui High-tec → Tongfu Microelectronics — supplier relationship in the semiconductor supply chain”, https://wafergraph.com/relationship/mitsui_hightec/tongfu/ (data as of 2026-09-16).
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