Daiichi Sankyo Co Ltd is a Japan-based company mainly engaged in the manufacture and sale of pharmaceuticals. The Company is involved in the research, development, manufacture and sale of pharmaceuticals, as well as the provision of intermediates and basic materials for pharmaceutical producing in Japan, the United States, Europe and other markets. The Company is also engaged in the research, development, manufacture and sale of over-the-counter drugs and vaccines, the provision of administrative services such as human resources and accounting services, real estate leasing and insurance agency business.