** Australian lithium producer Sayona Mining SYA.AX rises
as much as 12.5% to A$0.072, its highest level since Dec. 29
** SYA among top 3 gainers in the ASX 200 benchmark index
.AXJO ; on track for a fifth straight session of gain
** SYA Trading 3.2% higher at A$0.065 as of 2321 GMT
** Co says definitive feasibility study demonstrates value
of Moblan lithium project in Canada, in which it owns 40% stake
** Says project has an estimated post-tax net present value
of C$2.2 bln ($1.63 bln)
** Annual production rate 300 thousand tonnes per annum of
spodumene concentrate over mine's 21-year life
** More than 34 mln shares change hands, vs the 30-day
average of 75.1 mln shares
** SYA down 9.9% this year, as of last close
($1 = 1.3499 Canadian dollars)
(Reporting by Sameer Manekar in Bengaluru)
((Sameer.Manekar@thomsonreuters.com; Twitter: https://twitter.com/sameer_manekar))