[citation needed] This coincided with significant rises of stock price of uranium mining and exploration companies.
A possible direct cause for the bubble is the flooding of the Cigar Lake Mine, Saskatchewan, which has the largest undeveloped high-grade uranium ore deposits in the world.
[3] Other factors are speculation triggered by growing expectations around India and China's nuclear programs, and a reduction in available weapons-grade uranium.
The impact of the bubble on nuclear power generation was small, as most power plants have long-term uranium delivery contracts,[6] and the price of natural uranium makes up only a small fraction of their operating cost.
However, the sharp fall in prices after mid-2007 caused a lot of new companies focused on exploration and mining to lose their viability and go out of business.