IsoRay, Inc. (IsoRay) develops, manufactures and sells isotope-based medical products and devices for the treatment of cancer and other malignant diseases. IsoRay International LLC (International) is a wholly owned subsidiary of the Company. IsoRay obtained clearance from the Food and Drug Association for treatment for all solid tumor applications using Cesium-131. Such applications include prostate cancer; ocular melanoma; head, neck and lung tumors; breast cancer; liver cancer; brain cancer; colorectal cancer; gynecological cancer; esophageal cancer, and pancreatic cancer. The seed may be used in surface, interstitial and intracavity applications for tumors with known radio sensitivity. IsoRay has an existing distribution agreement with UralDial LLC (UralDial) that allows UralDial to distribute Proxcelan Cs-131 brachytherapy seeds in Russia. The Company, through UralDial, has regulatory approval to sell Cs-131 seeds in Russia.