What Sumitomo Bakelite makes for data centers
public · HQ Japan
Sumitomo Bakelite is a publicly listed company and based in Japan. It appears on 1 part of the AI data center — Substrate materials — in the role of manufacturer. That part sits in Layer 1 — Compute silicon & packaging. Its shares trade on Tokyo Stock Exchange as 4203.T. Substrate materials is flagged as a supply constraint in this catalog.
Listing
Tokyo Stock Exchange: 4203.T· 7600 JPY -1.77% · mkt cap 666.8B JPY
Snapshot 2026-10-25T10:41:17Z — nightly, not real-time.· Chart on TradingView ↗
Exposure
1 part across 1 layer · 1 constrained
No disclosed data-center revenue share on file.
Parts, by layer
Layer 1 — Compute silicon & packaging
| Part | Role | Confidence | Competitors | Note |
|---|---|---|---|---|
| Substrate materialsconstrained | manufacturer | disclosed | Ajinomoto, Asahi Kasei, Mitsubishi Gas Chemical, Nittobo |
Where Sumitomo Bakelite sits in the stack
Sumitomo Bakelite's placements in this catalog cover 1 part, all in layer 1, compute silicon & packaging. One of them is tagged constrained, meaning a sourced shortage rather than a long lead time. Across these parts it overlaps with other companies most often on the lines below.
What these parts are
- Substrate materialsconstrained — The films, resins, glass cloth, and other specialty chemicals that go into building an ABF package substrate.
Closest peers in this catalog
| Company | Shared parts | Including | |
|---|---|---|---|
| Ajinomoto | 1 | Substrate materials | |
| Asahi Kasei | 1 | Substrate materials | |
| Mitsubishi Gas Chemical | 1 | Substrate materials | |
| Nittobo | 1 | Substrate materials |
Latest feed
- Sumitomo Bakelite expands packaging material production across Singapore, China — DigiTimes, 2026-10-12Sumitomo Bakelite is increasing its production capacity for packaging materials in Singapore and China to support growing demand.
Questions about Sumitomo Bakelite
- What does Sumitomo Bakelite make for AI data centers?
- This catalog places Sumitomo Bakelite on 1 part: Substrate materials (manufacturer).
- Is Sumitomo Bakelite publicly traded?
- Yes — Sumitomo Bakelite is listed on Tokyo Stock Exchange under 4203.T. Prices shown on this page are a nightly snapshot, not real-time, and nothing here is investment advice.
- Where is Sumitomo Bakelite based?
- Japan, per the company record in this catalog.
- Who else makes substrate materials for AI data centers?
- Ajinomoto, Asahi Kasei, Mitsubishi Gas Chemical and Nittobo are also placed on Substrate materials in this catalog.
- How well sourced are these placements?
- Every part→company placement carries a confidence tag. For Sumitomo Bakelite the mix is 1 disclosed. "disclosed" means the company or a filing says so; "reported" comes from trade press or a reference-design list; "inferred" is a lead from the taxonomy with no citation yet. Treat reported and inferred as leads, not facts.
Answers are generated from this catalog's own rows — see sources & method.