** Shares of Austchina AUH.AX rise as much as 66.7% to A$0.0025, their highest level since September 13

** The mineral resource explorer receivesa non-binding letter of intent from Bluestone Energy Holdings Limited to invest up to A$1.5 million ($979,200) in co at an issue priceof A$0.003 per share

** Funds raised to be used for acquisitions of new resources projects, assets and investments, others

** Stock has risen 66.7% this year, including the session's moves

($1 = 1.5319 Australian dollars)

(Reporting by Sherin Sunny in Bengaluru)

((Sherin.Sunny@thomsonreuters.com))