{"id":"GSX:IND-004:A01","local_id":"A01","name":"Resource position","statement":"The manuscript uses USGS figures of about 5,000 tonnes of South African vanadium production in 2025, roughly 4.5 percent of estimated world output, and about 520,000 tonnes of reported reserves, around 2.5 percent of the world total.","value":"5000","unit":"tonnes of vanadium produced in 2025","type":"model assumption","provenance":"Manuscript Part I, citing USGS","evidence_strength":"external commodity estimate cited by the manuscript","sensitivity":"low","alternatives":["A later USGS revision"],"href":"https://greyscienx.com/research/strategic-industrialisation/the-vanadium-grid-storage-economy/assumptions/A01"}