** Cassius Mining soars as much as 10% to A$0.01; highest since early May
** Miner's Ghana unit files $277 mln claim against the country as a consequence of breaches of contract and statute
** Says claim amount is an independent expert assessment of co's lost profits and damages for the loss of opportunity to develop, establish and benefit from a producing gold mine in its licenced area in Ghana's Talensi District
** Adds Ghana's actions, including its failure to renew co's prospecting licence, deprived Cassius of entire value and profits of its gold project in the country
** Stock down 75% this year, as of last close
(Reporting by Rishav Chatterjee in Bengaluru)
((Rishav.Chatterjee@thomsonreuters.com;))