
1. Cameco
2015 uranium production: 14,200 tonnes
Cameco accounts for approximately 18 percent of global uranium production from its mines in Canada, the US and Kazakhstan. In the US, there is the Smith Ranch-Highland mine in Wyoming Powder River basin and the Crow Butte mine in Nebraska. In Canada, the company has 70% ownership of the world largest uranium mine, McArthur River, and a 50% stake in the world second-largest high-grade uranium deposit, Cigar Lake, in the Athabasca Basin.
2. AREVA
2015 uranium production: 11,002 tonnes
AREVA is active in five continents exploring for new deposits as well as mining and milling uranium ore. The company had a market share of close to 16% in 2015, making it one of the largest uranium producers in the world. Currently, AREVA has operating mines in Canada, Kazakhstan and Niger, and currently has projects under development in Africa. AREVA owns a 51% stake in the world second-largest mines, Tortkuduk and Myunkum in Kazakhstan. The mines are operated through a joint venture between AREVA and Kazatomprom, a partnership that is known as KATCO and was formed in 1996.
3. BHP Billiton
2015 uranium production: 3,144 tonnes
BHP Olympic Dam uranium mine in Australia is one of the largest in the world, having produced 3,144 tonnes of uranium for BHP 2015 fiscal year. However, times are tough for the world biggest miner, having announced a net loss of $6.4 billion for 2015-2016. The loss is reportedly the company worst ever full-year result, in part due to weak commodity prices. In July 2016, BHP announced the reaffirmation of an underground expansion pathway for the Olympic Dam copper-uranium mine.
4. Uranium One (Russian)
2015 uranium production: 6,250 tonnes
Uranium One holds the Willow Creek ISR mine in Wyoming, which includes the licensed and permitted Irigaray ISR central processing plant, the Christensen Ranch satellite ISR facility and associated uranium ore bodies.
5. Paladin Energy (Australian)