** Shares of Australia's Electro Optic Systems Holdings EOS.AX rise as much as 13.8% to A$9.50, their highest level since February 21, 2020
** Defense and space tech developer says its contract backlog stands at A$299 million ($196.2 million), or A$163 million higher than on December 31, 2024
** Sees full-year revenue from existing contracts of about A$115 million to A$125 million
** Sees additional revenue of A$25 million if orders are signed in time to enable 2025 delivery
** Stock is up 628.6% YTD, including the session's moves
($1 = 1.5242 Australian dollars)
(Reporting by Anjali Singh in Bengaluru)
((anjali.singh2@thomsonreuters.com;))