** High-Tech Metals HTM.AX rises as much as 8.7% to A$0.25, highest since July 15
** Stock eyeing third straight session of gains
** Cobalt explorer signs memorandum of understanding with SSH Mining Australia, unit of SSH Group SSH.AX, for co's Mt Fisher Gold project in Western Australia
** HTM soars 63.71% YTD
(Reporting by Anjali Singh in Bengaluru)
((anjali.singh2@thomsonreuters.com;))