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West African Craton

Rank#8 of 13
Score / MSP / IC8.5 / 8.8 / 4.51
IC basisMixed-vintage Fraser blend per the rated-jurisdiction convention (editorial ruling 2026-06-10, audit log v2.2.1): Guinea IAI=52.16 [Fraser 2025, verified set 13 May 2026 consolidation Part 1] × 0.7 + Sierra Leone IAI=28.6 [Fraser 2024 carry-forward, disclosed] × 0.3 = 45.09; ÷10 = 4.51. Weighting toward Guinea reflects dominant investable opportunity (Simandou, Sangaredi). Convention codified: blend when jurisdictions are rated, discount when unrated, anchor when single-jurisdiction. Supersedes the v2.2.0 Guinea-anchored 5.2 and the prior editorial estimate 2.2.
CommodityFe-Al-Diamonds · signal HIGH
Freshnesspending_disclosed Mixed-vintage blend per rated-jurisdiction convention (v2.2.1): Guinea 52.16 [Fraser 2025] ×0.7 + Sierra Leone 28.6 [Fraser 2024 carry-forward] ×0.3 → IC 4.51, score 8.5. Convention codified at the 10 June editorial ruling: blend when rated, discount when unrated, anchor when single-jurisdiction. Sierra Leone Fraser 2025 check at next cycle. · all provinces
Country pagesGuinea · Sierra Leone · Liberia · Cameroon · Nigeria · Mauritania

Opportunity (record)

Simandou ~5 Bt Fe at 65-66% grade — world's largest high-grade iron ore deposit; commissioned November 2025; first shipment of 200kt departed Guinea (Port of Morebaya) 2 December 2025 and arrived at Majishan port, China 17 January 2026 after 46-day voyage; second shipment departed December 2025. 2026 production: 5-10 MMt per Simfer operator guidance; market estimates up to 20 MMt; ramping to 120 MMt by 2030. Ownership structure: Simandou South (Blocks 3-4, Simfer S.A.) — Rio Tinto Group 45.05% effective / Chalco Iron Ore Holdings (CIOH, Chinalco-led Chinese SOE consortium) 39.95% effective / G

Assets in province (5, record-stated)

AssetStageOperator
Koidu Diamonds (Sierra Leone)Op—
London Resources Au (Sierra Leone)Exp—
Nimba Fe (Guinea)Dev—
Sangaredi Al (Guinea)Op—
Zogota Fe (Guinea)Dev—

Province attribution is stated on every asset record (the p field) — record-stated classification, no text inference. Whether record-stated platform classifications carry the formal Sourced label is an open editorial ruling; this page does not claim it. Contrast the country pages, where attribution requires the record to say so.