** Shares of Australia-based exploration co SolGold SOLG.L down 8.3% at 25.8p
** China's Jiangxi Copper 600362.SS raised its potential takeover offer to 28 pence per share from 26 pence per share, a discount of 0.71% from co's close of 28.2p on Thurs
**SOLG's board intends to recommend the updated proposal, which values the company at about 842 million pounds, if Jiangxi tables a firm offer on the same terms
** YTD, stock had almost quadrupled
($1 = 0.7474 pounds)
(Reporting by Tuhina in Bengaluru)
((Tuhina@thomsonreuters.com))