** Australia-listed shares of Flagship Minerals FLG.AX rise 8.9% to A$0.049, their highest levels since February 3
** The Thailand-based metals explorer says it will buy Pantanillo gold project in northern Chile
** Stock posts biggest percentage intraday gain since late January
** Stock down 14% YTD, including moves in current session
(Reporting by Jasmeen Ara Shaikh in Bengaluru)
((JasmeenAraIslam.Shaikh@thomsonreuters.com;))