Elon Musk has rejected the idea of Tesla investing in Nissan, despite a report indicating a Japanese group's interest in the investment.
Nissan's stock market value rose by 9.5% after claims that former prime minister Yoshihide Suga and others were seeking Tesla's strategic investment.
Nissan has faced leadership turmoil and declining profitability, hindering its electric car technology investments and leading to the cancellation of merger talks with Honda.
While Tesla investing in Nissan's American factories could benefit both companies, Musk emphasized the importance of Tesla's own manufacturing process.