** Shares of American Tungsten & Antimony AT4.AX rise 5.4% to A$0.1950, their highest level since Oct 21
** Mineral explorer acquires fully-permitted tungsten processing facility in Utah for an initial cash payment of $250,000
** About 21.7 mln shares change hands, 2.6x the 30-day average of 8.3 mln
** Stock ended up 189.5% in 2025
(Reporting by Jasmeen Ara Shaikh in Bengaluru)
((Jasmeenaraislam.Shaikh@thomsonreuters.com;))