• Shares of St Barbara fall as much as 7.3% to A$0.255, their lowest levels since February 5

• The gold miner says that it is planning to separate its Atlantic Gold Operations in Canada via a sale, vend-in, or a demerger into separate Canada-listed firm

• Says it will focus on Simberi Gold operations and expansion of Simberi Sulphide Project in Papua New Guinea after divestment

• Stock up 14.4% YTD, including current session's moves

(Reporting by Manasi Dasa Sundeep in Bengaluru)