The Green Salt Project (also known as the "Project 1-11") is an alleged secretive Iranian entity focusing on uranium processing, high explosives and a missile warhead design. The Green Salt Project derives its name from uranium tetrafluoride, also known as green salt, an intermediate product in the conversion of uranium ore into uranium hexafluoride — a toxic gas that can undergo enrichment or purification into fuel for nuclear reactors or bombs. Uranium tetrafluoride has also been used as the source of metallic uranium for Magnox reactor fuel elements via chemical reduction. Since the International Atomic Energy Agency began investigating Iranian nuclear activities in 2002, the IAEA has discovered a series of clandestine nuclear activities, some of which violated Iran’s safeguards agreeme