** Shares of mineral explorer ABx Group Ltd ABX.AX rise as
much as 20% to A$0.15, set for their best day since July 7, if
gains hold
** ABx says it has expanded lateral extent of Rare Earth
Elements (REE) mineralisation by 230% at its Deep Leads REE
project in northern Tasmania urn:newsml:reuters.com:*:nASX7VpFX9
** Stock jumps to its highest level since Aug 16
** Co says it has started its maiden REE resources
estimation for Deep Leads
** ABx shares up 27.6% YTD, as of last close
(Reporting by Nausheen Thusoo)
((Nausheen.Thusoo@thomsonreuters.com;))