** U.S.-listed shares of Lithium Americas LAC.N jump 70% to $5.22 in premarket trading
** Reuters reported on Tuesday that the Trump administration is seeking an equity stake of as much as 10% in LAC as part of talks over a $2.26 bln government loan for co's Thacker Pass lithium mine
** LAC on Wednesday confirmed it is in discussions with the U.S. Department of Energy and General Motors GM.N - its partner in the Thacker Pass JV - regarding first draw on the $2.26 billion loan
** The company did not comment on whether U.S. government is mulling the 10% equity stake in co
** Nevada-based mine expected to be Western Hemisphere's largest source of lithium
** The Trump administration has recently been acquiring stakes in U.S. companies, the latest being Intel INTC.O and MP Materials MP.N
** LAC had split its North American and Argentine businesses in November to boost focus on the mine
** News also lifts shares of other lithium miners: Albemarle ALB.N up 4%, Sigma Lithium SGML.O up 5.3%, U.S.-listed shares of SQM SQM.N rise 2.6%
** Stock has gained about 3% YTD, till last close