International Isotopes Inc.

International Isotopes, Inc. manufactures a range of nuclear medicine calibration and reference standards and various cobalt 60 products for medical devices, calibration, clinical research, life sciences, and industrial applications. International Isotopes' Fluorine Products Division (FPD) acquired seven patents for the Fluorine Extraction Process (FEP) in January 2004 and plans to utilize this technology to produce several high purity fluorine gas products, including germanium tetrafluoride which we are currently producing in our FEP plant. The FEP process uses depleted uranium tetrafluoride, DUF4, as its feedstock.