** Shares of Talga Group TLG.AX rise as much as 16% to
A$0.435, their biggest intraday pct gain since mid-June
** Battery materials developer says co granted graphite
exploitation concession for 25 years by the Mining Inspectorate
of Sweden for Nunasvaara South mine
** Says concession is a key step in production of the
critical mineral in the EU
** Stock hits highest level since Sept. 16
** More than 2 mln shares change hands vs 30-day avg volume
of 1.1 mln shares
** Talga down 46.5% YTD as of 0444 GMT
(Reporting by Nikita Maria Jino in Bengaluru)
((Nikita.Jino@thomsonreuters.com;))