{"id":"GSX:IND-002:A01","local_id":"A01","name":"Upstream position","statement":"USGS figures used in the manuscript put 2025 South African platinum mine output at about 120,000 kilograms, roughly 71 percent of reported world output, with about 63 million kilograms of PGM reserves.","value":"120000","unit":"kilograms of platinum mined in 2025","type":"model assumption","provenance":"Manuscript Part I, citing USGS Mineral Commodity Summaries 2026","evidence_strength":"external commodity estimate cited by the manuscript","sensitivity":"low","alternatives":["A later USGS revision"],"href":"https://greyscienx.com/research/strategic-industrialisation/the-platinum-to-hydrogen-economy/assumptions/A01"}