The unique nuclear fuels market is tightly controlled in the hands of a limited number of companies. The fuel cycle itself is a complex one that requires the involvement of a variety of participants. The raw material is first mined by the producer and then converted and enriched by regulated companies, often associated with national nuclear energy programs. The completion of fuel rod fabrication is done by yet another company. These rods are finally able to be consumed by the power plant in order for electricity production.