** Shares of Mastermyne MYE.AX rise 9.4% to A$0.175, their highest levels since Jan 14

** The mining services co reports an EBITDA of A$4.1 million ($2.55 million) in Q2, a 14% rise against pcp

** Stock marks its biggest intraday gain since Dec 27

** Stock up 6% this year, including the day's move

($1 = 1.6095 Australian dollars)

(Reporting by Rajasik Mukherjee in Bengaluru)

((Rajasik.Mukherjee@thomsonreuters.com))