** Shares of Thunderbird Resources THB.AX rise as much as 33.3% to A$0.02, their highest level since January 30
** Stock logs largest intraday pct gain since August 5
** Mineral explorer signs binding share sale agreement to buy Springfield gold deposit in New South Wales from a private entity
** Co to also raise A$2.2 million ($1.45 million) via a placement at issue price A$0.014 per share to fund the acquisition among others
** Around 8.7 million shares change hands, 4.7 times its 30-day average
** Stock up 11.8% YTD, including the day's moves
($1 = 1.5181 Australian dollars)
(Reporting by Nikita Maria Jino in Bengaluru)
((Nikita.Jino@thomsonreuters.com;))