• Shares of Australia's Citigold Corporation rise as much as 14.2% to A$0.016, marking their biggest intraday pct gain since August 28

• Gold explorer enters joint venture (JV) agreement with Native Mineral Resources over 40 key tenements at the Charters Towers gold project in Queensland

• Company says JV tenements host the majority of its reported mineral resources

• Adds NMR will have the exclusive right to undertake exploration and drilling across the JV area

• Company will receive a one-off A$5 million ($3.43 million) production payment from NMR once 8,000 ounces of gold have been produced from the tenements, in addition to share of surplus

• Stock largely flat YTD, including session's moves

($1 = 1.4571 Australian dollars)

(Reporting by Subhalakshmi Dey in Bengaluru)