卫材在华企业隶属于卫材株式会社，卫材株式会社是一家以研究开发医药产品为主的跨国公司，总部设在日本东京，中国区总部位于上海。

Eisai enterprise in China is affiliated with Eisai Co., Ltd., a multinational company mainly engaged in research and development of pharmaceutical products, headquartered in Tokyo, Japan, and headquartered in Shanghai, China.