** Shares of Variscan Mines VAR.AX up 33.3% to A$0.008
** Shares of natural resources co on track for best day
since Nov. 15, 2023, if current gains hold
** Co says entered exclusive marketing agreement with Square
Trading Singapore Pte for future sale of zinc and lead
concentrates from the Novales-Udia and Guajaraz projects
** About 1.7 mln shares change hands by 0508 GMT, 3.8 times
the 30-day average volume
** Stock down 40% this year, as of last close
(Reporting by Sherin Sunny in Bengaluru)
((Sherin.Sunny@thomsonreuters.com))