Denison Mines Corp. is a Canadian uranium

Uranium

Uranium is a silvery-white metallic chemical element in the actinide series of the periodic table, with atomic number 92. It is assigned the chemical symbol U. A uranium atom has 92 protons and 92 electrons, of which 6 are valence electrons...

 exploration, development, and production company. Founded by Stephen B. Roman, and best known for its uranium mining

Uranium mining

Uranium mining is the process of extraction of uranium ore from the ground. The worldwide production of uranium in 2009 amounted to 50,572 tonnes, of which 27% was mined in Kazakhstan. Kazakhstan, Canada, and Australia are the top three producers and together account for 63% of world uranium...

 in Elliot Lake, it later diversified into coal

Coal

Coal is a combustible black or brownish-black sedimentary rock usually occurring in rock strata in layers or veins called coal beds or coal seams. The harder forms, such as anthracite coal, can be regarded as metamorphic rock because of later exposure to elevated temperature and pressure...

, potash

Potash

Potash is the common name for various mined and manufactured salts that contain potassium in water-soluble form. In some rare cases, potash can be formed with traces of organic materials such as plant remains, and this was the major historical source for it before the industrial era...

, and other projects.

Currently, Denison's principal assets are its northern Saskatchewan

Saskatchewan

Saskatchewan is a prairie province in Canada, which has an area of . Saskatchewan is bordered on the west by Alberta, on the north by the Northwest Territories, on the east by Manitoba, and on the south by the U.S. states of Montana and North Dakota....

 interests in the McClean Lake mine

McClean Lake mine

The McClean Lake mine is a uranium mine and milling operation located west of Wollaston Lake, about 700 kilometres north of Saskatoon, in the Athabasca Basin region of Saskatchewan, Canada. The McClean ore body was discovered in 1979, followed by the discovery of the JEB ore body in 1982...

 and the Midwest Uranium Project. Also, Denison is a manager of Uranium Participation Corporation

Uranium Participation Corporation

Uranium Participation Corporation is a Toronto-based holding company investing nearly all of its assets in uranium, both in the form of uranium oxide or uranium hexafluoride , with the primary investment objective of achieving capital appreciation in the value of its uranium holdings. The common...

, a Toronto-based investment fund.

15% of the company is owned by Korea Electric Power Corporation (KEPCO).