Critical Minerals, Geological Lexicon & Jurisdictions

Primary monetary asset and high-density store of value. Mined via open pit and underground narrow-vein deposits.

• Institutional Delivery Form: LBMA Good Delivery 400 oz bar (≥995.0 or 999.9 fineness) or mine-site doré (~80%–90% Au).
• Assay Protocol: Classical lead-collection fire assay with gravimetric finish (ISO/IEC 17025 accredited).
• Processing Method: Cyanide leaching (CIL/CIP), heap leach, or gravity concentration.
• Underwriting Advance Rate: 75%–85% for LBMA bars in accredited vault; 65%–75% for site doré.

Essential component for photovoltaic solar panels, electronics, and medical equipment, frequently produced as a lead-zinc by-product.

• Institutional Delivery Form: LBMA Good Delivery 1,000 oz bar (≥999.0 fineness) or doré bullion.
• Assay Protocol: Multi-acid digestion ICP-MS or fire assay with silver parting.
• Processing Method: Flotation concentrate separation or cyanide leaching.
• Underwriting Advance Rate: 70%–80% for LBMA bars; 60%–70% for doré.

The cornerstone of global electrical grids, electric vehicles, and renewable power infrastructure.

• Institutional Delivery Form: LME/COMEX Grade A Cathode (≥99.9935% Cu) or Flotation Concentrate (22%–30% Cu).
• Assay Protocol: 4-Acid ICP-OES and titration. Deleterious elements (As, Sb, Bi) penalty matrix applies.
• Processing Method: Flotation for sulfides (chalcopyrite); SX-EW for oxide heap leach.
• Underwriting Advance Rate: 75% for Grade A Cathodes; 45%–55% for bulk concentrate lots.

Core cathode active material for lithium-ion battery cells across EVs and stationary energy storage.

• Institutional Delivery Form: Spodumene Concentrate (SC6: 6.0% Li2O) or Battery Grade Lithium Carbonate (LCE ≥99.5%).
• Assay Protocol: Sodium peroxide fusion with ICP-MS finish.
• Processing Method: Hard rock pegmatite dense media separation or Direct Lithium Extraction (DLE) from continental brines.
• Underwriting Advance Rate: 50%–60% for LCE; 40%–50% for spodumene concentrate.

High-energy-density cathode component for NMC chemistries and essential alloy for stainless steels.

• Institutional Delivery Form: Class 1 Nickel Briquettes (≥99.8% Ni) or Mixed Hydroxide Precipitate (MHP ~35% Ni).
• Assay Protocol: ICP-OES and XRF spectrometry with certified calibration.
• Processing Method: High-Pressure Acid Leach (HPAL) for laterites; flotation for magmatic sulfides.
• Underwriting Advance Rate: 65%–75% for Class 1 metal; 40%–50% for MHP intermediate.

High-stability cathode metal primarily sourced as a copper by-product in the Central African Copperbelt.

• Institutional Delivery Form: Cobalt Broken Cathodes (≥99.8% Co) or Cobalt Hydroxide (~30% Co).
• Assay Protocol: Multi-acid digestion with ICP-MS analysis.
• Compliance Gate: Mandatory OECD Due Diligence audit certifying zero child labor and conflict-free provenance.
• Underwriting Advance Rate: 50%–60% for certified cathode; 35%–45% for crude hydroxide.

Ultra-rare catalytic metal critical for hydrogen fuel cells, PEM electrolyzers, and automotive emission control.

• Institutional Delivery Form: LPPM Good Delivery Sponge or Ingot (≥99.95% Pt).
• Assay Protocol: Nickel sulfide fire assay with ICP-MS finish.
• Geological Setting: Layered ultramafic intrusions (Bushveld Complex, Stillwater Complex).
• Underwriting Advance Rate: 70%–80% for vaulted LPPM Good Delivery metal.

Catalytic converter element and high-temperature capacitor alloy concentrated in South Africa and Russia.

• Institutional Delivery Form: LPPM Good Delivery Ingot or Sponge (≥99.95% Pd).
• Assay Protocol: Fire assay collection and high-resolution ICP-OES.
• Processing Method: PGM smelting, matte converting, and fractional precipitation refining.
• Underwriting Advance Rate: 70%–75% for vaulted physical metal.

Permanent magnet raw materials (Neodymium-Praseodymium) vital for EV traction motors and wind turbine direct drives.

• Institutional Delivery Form: Didymium Metal (NdPr alloy ≥99.0%) or Mixed Rare Earth Carbonate (MREC).
• Assay Protocol: Lithium borate fusion with ICP-MS finish.
• Environmental Safeguard: Verification of Thorium/Uranium radiological waste disposal licensing.
• Underwriting Advance Rate: 40%–50% for refined NdPr metal; 30% for uncracked MREC.

Primary fuel feed for commercial nuclear power reactors undergoing low-carbon baseload expansion.

• Institutional Delivery Form: Uranium Ore Concentrate (U3O8 "Yellowcake") in licensed conversion facilities (Cameco, Orano).
• Assay Protocol: XRF and potentiometric titration under IAEA safeguards.
• Extraction Method: In-Situ Recovery (ISR) via wellfields or underground hard rock.
• Underwriting Advance Rate: 60%–70% for book-transferred material at licensed conversion facilities.

1. Net Smelter Return (NSR) Netback

Establishes actual net cash realization from concentrated ore shipments. Prevents credit underwriting from confusing gross contained metal value with collectible revenue.

2. Polymetallic Equivalent Grade (AuEq / CuEq)

Standardizes multi-metal ore bodies into a single payable unit. Enforces realistic metallurgical recovery differentials between primary and secondary metals.

3. Breakeven Cut-Off Grade (COG)

The threshold grade required for one tonne of rock to generate zero operating profit. Tonnage reported below this grade cannot be classed as an economic reserve.

4. Mine Call Factor & Mining Dilution

Measures operational execution. An MCF < 85% flags that the geological block model is overestimating grade or the mine is suffering from excessive waste dilution.