Uranium One Inc. is one of the world's largest uranium producers with a globally diversified portfolio of assets located in Kazakhstan, the United States, Australia and Tanzania. ROSATOM State Atomic Energy Corporation, through its affiliates, owns 100% of the outstanding common shares of Uranium One.

In Kazakhstan, Uranium One holds a 70% interest in the Betpak Dala joint venture, which operates the Akdala and South Inkai Uranium Mines, a 50% interest in the Karatau joint venture, which owns the Karatau Uranium Mine, a 50% interest in the Akbastau joint venture, which owns the Akbastau Uranium Mine, a 49.98% interest in the Zarechnoye joint venture, which owns the Zarechnoye Uranium Mine, a 30% interest in the Kyzylkum joint venture, which operates the Kharasan Uranium Mine, and a 19% interest in the SKZ-U joint venture, which owns a sulphuric acid plant near Kharasan as an additional source of sulphuric acid for its operations.

In the United States, the Corporation owns the Willow Creek uranium mine and projects in the Powder River and Great Divide basins in Wyoming. The Corporation owns the Honeymoon Uranium Project in Australia, which is currently on a care and maintenance program.

Uranium One Mining is a Canadian-based uranium mining company that is a subsidiary of the Russian-based Rosatom nuclear energy corporation. The company was founded in 1997 and has operations in Kazakhstan, the United States, and Canada. Uranium One Mining is the world’s second largest producer of uranium and has a total production capacity of over 19,000 tonnes of uranium per year.

Uranium One Mining is the largest uranium producer in Kazakhstan, which accounts for around 40% of the world’s uranium production. The company operates several open-pit and underground mines in the country, including the Akdala and the South Inkai mines. The company also has a joint venture with the Kazakh state-owned company Kazatomprom. Uranium One Mining also has operations in the United States and Canada. In the United States, the company owns the Honeymoon and Christensen Ranch uranium mines in South Dakota and the Smith Ranch-Highland uranium mine in Wyoming. In Canada, the company owns the Rabbit Lake uranium mine in Saskatchewan.