** Shares of Australia's Eagle Mountain Mining EM2.AX rise as much as 25% to A$0.01, their highest level since January 30
** Stock set to log steepest intraday pct gain since March 31
** Precious metal explorer signs binding agreements with Nittetsu Mining Co for Oracle Ridge project
** JV to be 80% owned by Nittetsu Mining and rest by co
** About 20.9 million shares change hands, 9.2 times the 30-day avg
** Stock up 11.1% YTD, including session's moves
(Reporting by Anjali Singh in Bengaluru)
((anjali.singh2@thomsonreuters.com;))