2026–28
Assay protocols, impurity tables, ISA/EEZ legal watch, no capex on a field required.
Supply chains · pre-position
A single FRONTINUS field does not replace Chilean copper. It does reprice clean concentrate, payable gold in sulfide paste, and the environmental case for bulk SMS excavation. Offtakers who wait for a USGS line item will already have lost the first lots.


| Actor | Effect | Pre-position |
|---|---|---|
| Copper smelters & custom concentrates | Higher-grade, lower-penalty paste competes with dirty VMS and some porphyry concentrates. TC/RCs on clean lots compress first. | Book trial lots; reserve furnace slots for 2030–32 paste assays. |
| Zinc refiners | White-smoker and mixed-zone ZnS can arrive with lower iron penalty than many terrestrial feeds. | Qualify FRONTINUS Zn paste against Roaster impurity tables. |
| Precious-metal circuits | Au–Ag reporting in discrete sulfide layers raises payable gold without a separate mine. | Update offtake formulas for zoned paste, not bulk SMS. |
| Cobalt & specialty | Small tonnes, high leverage on offtake narratives and IRA-style origin rules. | Chain-of-custody protocol now, before first cargo. |
| Bulk SMS project developers | Continuous fluid harvest undercuts the need to level chimneys at some sites. | Re-scope environmental and capex cases; do not assume excavation monopoly. |
| Terrestrial VMS juniors | High-purity seafloor paste re-rates what ‘high grade’ means in offtake talks. | Stress-test PEAs against a 2032 clean-paste price deck. |
Assay protocols, impurity tables, ISA/EEZ legal watch, no capex on a field required.
Smelter trial lots if a pilot well exists. Rewrite offtake clauses for zoned paste.
Base path can approach a few hundred kt Cu-eq/year. Fast path crosses 1% of refined copper. That is when PEAs break.