JSR Corporation (JSR) is a Japan-based advanced materials company founded in 1957 as Japan Synthetic Rubber and renamed in 1997. Headquartered in Tokyo, it supplies specialty materials to the chemical, automotive, electronics, and life sciences sectors worldwide.
JSR’s portfolio centers on semiconductor materials—photoresists (including for advanced lithography such as EUV), CMP slurries, and related process chemicals—along with display and optical materials. The company historically developed and produced synthetic rubber and high-performance elastomers such as solution‑polymerized styrene‑butadiene rubber (S‑SBR) used in fuel‑efficient tires, and has participated in joint ventures for elastomer production. In life sciences, JSR provides materials and services used in bioprocessing and diagnostics. The company operates R&D and manufacturing sites in Japan and internationally.
