** Shares of Polymetals Resources POL.AX rise as much as
21.8% to A$0.335, their highest since Dec. 5, 2023
** Stock posts its biggest intraday percentage gain since
Dec. 5
** Gold explorer says U.S.-based copper miner Metals
Acquisition MTAL.N will invest A$2.5 mln ($1.66 mln) in POL at
A$0.35 per share
** Investment price represents a 27.3% premium to co's last
close
** About 90,000 shares change hands, compared with the
30-day average volume of around 19,800
** Stock down 11.3% YTD, based on last close
($1 = 1.5081 Australian dollars)
(Reporting by Aaditya Govind Rao in Bengaluru)
((Aaditya.govindrao@thomsonreuters.com;))