** Shares of copper and nickel mine operator GRE.AX climb
as much as 50% to A$0.300 on market debut
** Shares open trading at A$0.290
** Greentech raises A$5 mln ($3.60 mln) in an initial public
offering at issue price of A$0.20 per share urn:newsml:reuters.com:*:nFWN2TJ0XR
** Says drilling at its Whundo Copper Project is expected to
commence in January, aiming for extensions to its greenfields
copper exploration targets
** GRE stock last up 37.5% at A$0.275, with more than 1.3
mln shares trading hands
($1 = 1.3891 Australian dollars)
(Reporting by Himanshi Akhand in Bengaluru)
((Himanshi.Akhand@thomsonreuters.com;))