José Goldemberg wrote for the Carnegie Endowment back in 2007:
The increasing number of countries that wish to enrich uranium raises nuclear proliferation concerns. To discourage that, a number of proposals have been made to increase assurances of supply in case of market disruptions for political reasons: GNEP by the United States and Putin’s proposal of an international enrichment center in Russia.
A characteristic common to most of these proposals is that they include a conditionality clause that requires participating newcomers in the nuclear energy arena to forego the development of uranium enrichment (and plutonium reprocessing technologies) in exchange for supply assurances.
For this reason, such proposals are seen by some developing countries as a strategy to maintain current suppliers’ monopolistic commercial positions (USEC, EURODIF/AREVA, URENCO and TENEX).
Foregoing uranium enrichment in order to obtain security of supply is not an acceptable option for a number of countries despite the fact that there is a worldwide overcapacity of enrichment of 10,000 seperative work units. There are two reasons for this:
i. Some countries, such as Australia, Canada and Brazil are betting on a strong “renaissance” of nuclear energy in the next few decades and, having large uranium mineral reserves, believe they could be exporters of enrichment services in a growing market. As an example, the head of the Brazilian Nuclear Energy Commission recently justified investments in enrichment by arguing that “Brazil has the sixth largest reserves of uranium (310,000 tons reserves and 800,000 tons resources) and one hopes it could be the second [largest] since only 30% of its territory has been prospected up to 100 meters of depth bellow the surface. Eventually Brazil could export yellow cake.”
ii. In several instances in the past, supply of nuclear fuel was interrupted (to Brazil, in 1974 and to Iran, in 1979) strengthening the decisions of these countries to develop enriching facilities for national security reasons independently of economic considerations. Indigenous uranium enrichment begins to make economic sense only if a country possesses at least 10 gigawatts of installed nuclear capacity (10 large nuclear reactors). However, countries may want to keep enrichment capabilities as a “safety net” against politically motivated threats of fuel supply interruptions.
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