Desk Reference: TCR-FF-2026-005 Category: Base Metals & Market Abuse / Authorization Fraud Primary Source Record: CFTC administrative order against Sumitomo Corporation (Release #4144-98, 1998, record $125M manipulation settlement) and Tokyo District Court judgment of March 26, 1998 (conviction of Yasuo Hamanaka for fraud and forgery) Primary Assets: LME Copper Grade A futures positions and physical LME warehouse warrants Documented Financial Loss: ~$2,600,000,000 USD in unau