Quiborax S.A. and Non Metallic Minerals S.A. and Plurinational State of Bolivia, Case No. ARB/06/2 Partially Dissenting Opinion by Professor Brigitte Stern 16 September 2015 - World Trade and Arbitration Materials View Quiborax S.A. and Non Metallic Minerals S.A. and Plurinational State of Bolivia, Case No. ARB/06/2 Partially Dissenting Opinion by Professor Brigitte Stern 16 September 2015 by - World Trade and Arbitration Materials Quiborax S.A. and Non Metallic Minerals S.A. and Plurinational State of Bolivia, Case No. ARB/06/2 Partially Dissenting Opinion by Professor Brigitte Stern 16 September 2015 27 6 World Trade and Arbitration Materials