BUZZ-Australia's Bougainville Copper rises on tax settlement
** Miner Bougainville Copper Ltd rises as much as 10.1 pct to highest since September 2014
** Company and Papua New Guinea reach settlement related to tax assessments and court proceedings on April 2 (http://bit.ly/1Ctf4Wp)
** Rio Tinto Ltd (Xetra: 855018 - news) owns 53.58 pct in Bougainville Copper, while Papua New Guinea govt has about a fifth
** Bougainville shares second-highest gainer on ASX All Ordinaries index
** Stock has risen about 49 pct YTD (Reuters Messaging: shounak.dasgupta.thomsonreuters.com@reuters.net)