Sumitomo Chemical
Sumitomo Chemical is a major in the Materials segment of the semiconductor & AI supply chain, headquartered in Chūō. Its key customers include TSMC, Samsung Electronics, Intel.
Diversified chemicals group with significant photoresist business.
- Ticker
- TSE: 4005
- Headquarters
- Chūō
- Founded
- 1913
- Employees
- 30,745
- Revenue
- $14.6B (FY2026) · +171.8% YoY
- Net income
- $381M
- Operating margin
- 8.4%
- Market position
- major
- Value-chain segment
- Photoresists & Chemicals
- Key products
- photoresists, high-purity chemicals
About Sumitomo Chemical
Sumitomo Chemical, headquartered in Japan, operates in the Photoresists & Chemicals segment of the semiconductor & AI supply chain and is positioned as a market major there. Its key products include photoresists, high-purity chemicals. wafergraph maps 7 tracked customers for Sumitomo Chemical across the value chain. It has a supply-chain criticality score of 68/100, with 236 companies downstream of it.
Sumitomo Chemical Co., Ltd. is a major Japanese chemical company. The company is listed on the first section of the Tokyo Stock Exchange and is a constituent of the Nikkei 225 stock index. It is a member of the Sumitomo group and was founded in 1913 as a fertilizer manufacturing plant.
Role in the chain
Sumitomo Chemical is a market major in Materials (Photoresists & Chemicals), headquartered in Japan. Diversified chemicals group with significant photoresist business.
Diligence questions
- The dataset names 7 tracked customers for Sumitomo Chemical. How concentrated is demand among those names, and which of them have a documented second source in this graph?
- Sumitomo Chemical 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 Chemical trades as TSE:4005. 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
- photoresists
- high-purity chemicals
Customers
More Materials companies
Compare with
Merck KGaA (EMD Electronics) · Shin-Etsu Chemical · Daikin Industries · FUJIFILM · Entegris · Resonac
Sources
Open the interactive supply-chain view →
Cite as: wafergraph, “Sumitomo Chemical — supply chain, financials & market position”, https://wafergraph.com/company/sumitomo_chemical (data as of 2026-09-05).
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