The Cree East project covers 223 square miles (sq m) of highly prospective terrain in the eastern Athabasca basin, in Canada.
Hanwha, KORES, KEPCO and SK are the four partners, which have entered a buyback agreement.
CanAlaska president Peter Dasler said: "Canalaska is very grateful for the support of each of the four Korean Industry Partners management and staff for their guidance and financial support on the project.
"Canalaska is now tasked with finding new partnerships to advance the drill testing of the targets that have been detailed through our partners' persistence."
Since 2007, the Korean partners have funded exploration worth $20mln on the Cree East project and delineated multiple zones of mineralization. There are two priority targets at Zone A and Zone B.
Exploration was reduced in scale in 2011 and exploration drilling has been suspended since 2012.
"The partnership has maintained a diamond drill at the site of Zone B mineralization since 2014, however the protracted slowdown in the uranium market has precluded any further activity by the Limited Partnership and its management," said CanAlaska.
Canalaska also noted today that property sales agreements had been terminated with Fjordland Exploration Inc and Canterra Minerals Corporation for certain diamond exploration properties in the western Athabasca.
Canalaska retains a 100% interest in these properties, it said.
Shares fell 6.17% to 38 cents in Toronto.