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Our facility

Located in Oita Prefecture in the western part of Japan, Sumitomo’s state-of-the-art oligo plant offers you the highest quality gRNA for your genome-editing needs.

  • WFI-grade water for manufacturing

    Grade A environmental control from dispensing to lyophilization


    Fully GMP compliant

    90% purity @100 mer gRNA and 85% purity @130 mer gRNA using Cytiva’s OligoPilot™400 synthesizer

  • Facility Exterior
    Facility interior

Our alliance partner PeptiStar

    • Located in Osaka prefecture
    • 400 km distance from Sumitomo’s Oita Plant
      → Viable GMP backup to Oita
    • Close to Sumitomo’s R&D and HQ QA
      → Easy technology transfer and QA oversight
    • Cytiva’s OligoPilot™ oligonucleotide synthesizer under cGMP
    • Cytiva’s OligoPilot™100 synthesizer under cGMP
  • PeptiStar
  • PeptiStar’s GMP OP100 suite serves your small-volume GMP needs such as ex-vivo requirements.


    For large-volume projects, Sumitomo will do technology transfer to PeptiStar for flexible manufacturing scheduling.

  • equipment photo