# Who does Sumitomo Chemical pay? Who are its key suppliers?
Canonical: https://valuechain.wiki/sumitomo-chemical · Facet: suppliers · Updated: 2026-07-12T03:54:59.471+00:00 · Source: ValueChain.wiki (cited money-flow graph)

**Citable summary**: Sumitomo Chemical discloses no named confirmed suppliers/cost counterparties; 2 relationships are tracked as undisclosed/aggregate. Per the valuechain.wiki graph: 2 cost edges, backed by 2 dated sources, 1 of them primary filings (as of 2026-07-12).

### 나프타·석유화학 원료 (high)
- note: Feedstock cost for the Essential & Green Materials segment (FY2024 revenue ¥899.0bn) is driven by fossil inputs such as naphtha. In Japan propylene is mainly produced from naphtha; Sumitomo Chemical is rationalizing (e.g., withdrawing from Chiba ethylene) and developing an ethanol-to-propylene green process targeted for commercialization in the early 2030s.
- [confirms] Sumitomo Chemical (EN, ir, published 2025-08-20) https://www.sumitomo-chem.co.jp/english/news/detail/20250820e.html: "Currently, in Japan, propylene is mainly produced from naphtha, a fossil resource. Sumitomo Chemical aims to switch feedstock and cut production costs by producing propylene directly from ethanol, targeting commercialization in the early 2030s."
- [confirms] Sumitomo Chemical (EN, filing, published 2025-05-14) https://www.sumitomo-chem.co.jp/english/news/files/docs/20250514_1e.pdf: "Essential & Green Materials is the largest segment at ¥899.0bn FY2024 sales revenue."

### 에너지 (전력·연료) (mid)
- note: Large-scale petrochemical and base-chemical production is energy-intensive, so electricity and fuel costs are a key swing factor in the cost base; higher oil and power prices pressure margins.
- [mentions] Sumitomo Chemical (EN, filing, published 2025-05-14) https://www.sumitomo-chem.co.jp/english/news/files/docs/20250514_1e.pdf: "Amid structural reforms to improve performance, energy and raw-material costs affect the bottom line."

Reverse side: https://valuechain.wiki/sumitomo-chemical/customers.md · Ripple: https://valuechain.wiki/sumitomo-chemical/ripple.md

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