Corporate Profile

Message from the President

KATAYAMA SEIYAKUSYO was founded in 1922 to synthesize organic and inorganic reagents. Since then, the company has accumulated a wealth of organic synthesis technologies through its business performing custom synthesis of active pharmaceutical ingredients (APIs) and intermediates, synthesis of chemicals for photographic printing paper, and synthesis of fine chemicals for pharmaceuticals.

In this period, our company created a c-GMP-compliant pharmaceutical manufacturing control system, and underwent PAI inspection by the US FDA as well as GMP inspection by the EU AIFA (EMA) and Japan's Pharmaceuticals and Medical Devices Agency (PMDA). As one of few pharmaceutical contract manufacturers in Japan able to comply with the requirements of these three agencies, we have earned the acclaim and trust of numerous pharmaceutical firms.

Furthermore, to meet customers' demands for higher QCD (quality, cost, and delivery), we are expanding our facilities, strengthening our capabilities for process development, and improving our technical services. We have also taken up the challenge of incorporating the inorganic chemistry technologies of the Sakai Chemical Industry Group, which we entered in February 2012, into our pursuit of creating new values.

By contributing to society through contract manufacturing of APIs and intermediates, and through our challenge to create new values leveraging organic and inorganic chemistry technologies, we will forge a new KATAYAMA SEIYAKUSYO.

Thank you for your continued understanding and support.


To achieve healthy lives and a prosperous society, we will:

  • Contribute to the creation of medicines through organic synthesis technologies
  • Provide new values through technological innovation in organic and inorganic chemistry
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