Subscriber OnlyMarketsSouth Africa’s No. 1 Platinum Union Seeks Dispute MediationAMCU refers deadlocked talks with Sibanye and Amplats to CCMAUnion says still possible to reach agreement without a strikeByPaul Burkhardt+FollowOctober 1, 2019, 9:50 AM UTCUpdated onOctober 1, 2019, 4:31 PM UTCSouth Africa’s biggest platinum mining labor union has referred a wage dispute with both Anglo American Platinum Ltd. and Sibanye Gold Ltd. to outside mediators.The referral came after three months of negotiations broke down, Association of Mineworkers and Construction Union President Joseph Mathunjwa told reporters in Johannesburg on Tuesday.