Sumitomo Chemical is a key supplier of EUV photoresist — the light-sensitive material that defines transistor patterns at atomic scale during lithography — in a market concentrated among a handful of Japanese suppliers. Its materials are present in the production of virtually every leading-edge AI chip manufactured today, giving Japan significant leverage in supply chain diplomacy. Sumitomo also produces compound semiconductors and specialty chemicals used throughout chipmaking.
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Sumitomo Chemical
Key supplier of EUV photoresist and compound semiconductors
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Sumitomo Chemical
Key supplier of EUV photoresist and compound semiconductors
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DOWNSTREAM — CUSTOMERS