Stellantis would invest 5 million euros ($5.45 million) at an issue price of A$0.467 per share in the battery metals miner in return for a near 20% stake, Kuniko said.
Kuniko shares rose as much as 58.1% to A$0.680, their highest level since Oct. 31.
Under the deal, announced by Stellantis on Friday, the carmaker will also get 35% of the nickel sulphate and cobalt sulphate produced from Kuniko's Norway exploration projects for nine years.
The funds from the Stellantis' equity investment will be used to advance Kuniko's brownfield and greenfield battery metals exploration projects in Norway, the company said.
($1 = 0.9168 euros)
(Reporting by Himanshi Akhand and Rishav Chatterjee in Bengaluru; Editing by Rashmi Aich and Krishna Chandra Eluri)
