Group Companies


Business : Import & Sale of generic APIs/Intermediates

KOA SHOJI's mission is to be the best generic importer in Japan. For that, we stably supply imported generic APIs / Intermediates to domestic generic manufacturers with higher-quality and lower cost. And we have warehouses and the Pharmaceutical Analysis Centers in the Kanto (east) and Kansai (west) regions in Japan. We also have synthesis research facilities to help solve technical and quality issues of products to be produced with new generic APIs and to collaborate with foreign suppliers. We can offer the full range of services related to our business to foreign suppliers with the state-of-the-art equipment and our experience. As one of the leading generic importer in the accelerating super aging society in Japan, KOA SHOJI keeps on evolving in the future.


Business :Manufacturer of various kinds of injections, Contract manufacturing of pharmaceuticals

KOA ISEI was established in 1956 at the request of Yamagata City Medical Association. We are aiming to develop characteristic and high value-added generics as a specialty company of mainly injections. In the accelerating super aging society in Japan, in order to meet our customers' needs we built our new Zao Factory for high pharmacologically active preparations in Yamagata in May 2016. It allows us to have a flexible production system from various kinds of clinical trial drugs to finished products on small quantity basis. We contribute to medical science industry through manufacturing of high value-added and high-reliable generics.


Business : Packaging of pharmaceutical products & manufacture and sales of generic drugs

We provide contract packaging services of pharmaceutical products, also providing steady supply of high-quality generic drugs as a marketing authorization holder.


Business :Manufacturer of OTC drugs, mainly various vitamins

KOA PHARMACEUTICAL is a manufacturer of OTC drugs, mainly various vitamins. Since our establishment in 1951, we have been taking a consistent approach to bring health and longevity for all the people in order to contribute to the medical industry through our business. Corresponding to the expansion of self-medication, we keep on contributing to our society.