Wacker Chemie → SUMCO
Yes, wafergraph tracks Wacker Chemie as a supplier of SUMCO, as of 2026-10-09. SUMCO sources from 2 tracked suppliers in this dataset; SUMCO has only 2 tracked suppliers in this dataset. Concentration on the supplier side is high.
Data as of 2026-10-09 · 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
Wacker Chemie (major in Materials) is a tracked supplier of SUMCO (major in Materials). Major polysilicon and silicone maker supplying semiconductor-grade silicon. Second-largest silicon wafer producer, supplying all leading fabs. The edge is one of 2 tracked suppliers of SUMCO and one of 11 tracked customers of Wacker Chemie.
Source: derived from both company records and the counted edges.
Concentration / risk note
SUMCO has only 2 tracked suppliers in this dataset. Concentration on the supplier side is high.
Basis: few suppliers. Omitted on edges where the graph does not back a concentration claim.
The two companies
Wacker Chemie (supplier)
Major polysilicon and silicone maker supplying semiconductor-grade silicon.
SUMCO (customer)
Second-largest silicon wafer producer, supplying all leading fabs.
Other tracked suppliers of SUMCO
Other tracked customers of Wacker Chemie
Frequently asked questions3
- Is Wacker Chemie a supplier of SUMCO?
- Yes. wafergraph records Wacker Chemie as a tracked supplier of SUMCO (as of 2026-10-09).
- How many suppliers does SUMCO have?
- The dataset records 2 tracked suppliers for SUMCO.
- How many customers does Wacker Chemie have?
- The dataset records 11 tracked customers for Wacker Chemie.
Cite as: wafergraph, “Wacker Chemie → SUMCO — supplier relationship in the semiconductor supply chain”, https://wafergraph.com/relationship/wacker/sumco/ (data as of 2026-10-09).
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