Assmang — the joint venture owned by African Rainbow Minerals and Assore — said it is weighing closure of the Beeshoek iron-ore mine after ArcelorMittal South Africa unexpectedly declined to sign a new three-year supply contract. Beeshoek has been reliant on ArcelorMittal South Africa as its sole domestic customer; without replacement contracts the JV concluded exports were not economically viable and initiated retrenchment processes that could cost about 688 jobs. The announcement follows broader stress at ArcelorMittal South Africa, which recently posted a sizeable loss amid weak domestic demand, soaring electricity costs, transport bottlenecks and mounting import competition from cheap Chinese and other foreign finished steel. Assmang said it had investigated alternatives — including exporting — but found them unworkable at current margins and logistics costs. Trade unions confirmed the company has started formal retrenchment consultations. The development illustrates a cascading supply-chain shock: lower offtake by a large domestic steelmaker can quickly undermine the economics of locally integrated raw-material suppliers, with employment, regional logistics and export feasibility all affected. Market watchers will be watching whether ArcelorMittal South Africa revises its procurement stance or whether alternative buyers or state support emerge to preserve the mine and jobs.