** Shares of Pantoro PNR.AX fall 9.5% to A$2.76

** Pantoro stock down as much as 13.1% earlier in the day, its worst intraday drop since April 7

** The gold producer reports production of 18,334 ounces of gold, below forecast range of 20,700 to 25,300 ounces for the quarter

** Says lower-than-expected output was hindered by the slow onboarding of drilling staff at its Scotia underground mine in Western Australia

** Pantoro stock up 79.7%, YTD

(Reporting by Kumar Tanishk in Bengaluru)

((Tanishk.Kumar@thomsonreuters.com; X: @thatstanishk;))