** Shares of Cobre Ltd CBE.AX climb as much as 21.9% to
A$0.078, set for best day since late January - if current gains
hold
** Diversified miner says it has signed a letter of intent
with a unit of BHP Group BHP.AX for a joint venture deal to
explore copper and silver deposits in Botswana
** Shares hit highest since mid-June
** About 3.9 mln shares change hands, 11.1 times the 30-day
average volume of 349,356 shares
** Including day's moves, stock has risen ~61.4% this year
(Reporting by Archishma Iyer)
((Archishma.Iyer@thomsonreuters.com;))