** Electro Optic Systems jumps as much as 12.2% to A$1.195; biggest intraday pct gain since Nov. 25
** Stock hits highest since Dec. 9
** Defense technology developer and unit secure new contracts worth ~A$33.7 mln ($21 mln)
** Co's A$13.6 mln order from new Western European customer for counter-drone container based remote weapon systems
** Singapore unit's ~A$20.1 mln order is for remote weapon system spares
** Stock rises 2.4% YTD, as of last close
($1 = A$1.5992)
(Reporting by Sneha Kumar in Bengaluru)
((Sneha.Kumar@thomsonreuters.com;))