China Isotope & Radiation Corporation engages in the research and development, manufacture, and sale of nuclides, diagnostic, and therapeutic radiopharmaceuticals and radioactive source products for medical and industrial applications in China. It operates through five segments: Pharmaceuticals; Radioactive Source Products; Irradiation; Radiation Therapy Equipment and Related Services; and Other Businesses. The Pharmaceuticals segment engages in the research, development, manufacture, and sale of imaging diagnostic and therapeutic radiopharmaceuticals, urea breath test kits and analyzers. The Radioactive Source Products segment sells medical and industrial radioactive sources products and related technical services.