Brief: Panthera Resources Says Claimant Filed $1.58 Bln Arbitration Damages Claim
May 19 (Reuters) - Panthera Resources PLC PATP.L: PANTHERA RESOURCES: CLAIMANT FILED MEMORIAL IN ACCORDANCE WITH ORDER OF ARBITRAL PANEL INCLUDING CLAIM FOR DAMAGES OF US$1.58 BILLION Source text: ID:nRSS1827Ja Further company coverage: PATP.L ((Reuters.Briefs@thomsonreuters.com;))