** Shares of 29Metals Ltd 29M.AX fall as much as 27.5% to A$0.395, hitting their lowest in a year
** Stock logs largest intraday pct drop since late March 2024, making it the top loser on the ASX All Ordinaries index .AORD
** Diversified metals explorer withdraws full year guidance for zinc production
** Attributes action to a minor volcanic activity within the Xantho Extended orebody at its Golden Grove mine in Western Australia, says no injuries reported
** Says production guidance for all other metals is maintained
** Around 13.8 million shares change hands, 3.3 times the 30-day average
** 29Metals set to log a 24.3% rise in September, extending gains for second month
** Stock up 71.4% YTD, including current session moves
(Reporting by Nikita Maria Jino in Bengaluru)
((Nikita.Jino@thomsonreuters.com;))