** Shares of Rumble Resources RTR.AX slump as much as
17.7% to A$0.140, hitting their lowest since April 9, 2021
** Diversified miner says it has received firm commitments
to raise A$8.1 mln ($5.25 mln) via share placement
** Adds it will raise up to A$3 mln through share purchase
plan
** Issue price of A$0.135 per share is at a 20.6% discount
to previous trading price on Aug 9
** Shares see worst day since June 2, 2021 if current losses
hold; fall for third straight session
** Stock had fallen 22.7% this year, as of last close
($1 = 1.5430 Australian dollars)
(Reporting by Archishma Iyer)
((Archishma.Iyer@thomsonreuters.com;))