@techreport{yang2026escondida,
  author = {Yang, Benjamin},
  title = {Goldman Sachs' Copper Outlook and BHP's $6 Billion Escondida Decision},
  institution = {Strategic Materials Policy Tracker},
  number = {Financial Intelligence 002},
  year = {2026},
  note = {Research cutoff: 5 November 2026},
  url = {https://strategic-materials-policy-tracker.vercel.app/research/escondida-copper}
}