If a mine is ever built here, one way owners can share in its value is a royalty — a payment tied to what the mine actually produces, usually a small percentage of the value of the metal sold. It's separate from any up-front bonus or annual access payment. Here's how it works, in plain terms.
The percentage is only half the story
Two agreements can both say “2%” and pay wildly differently — because they take 2% of different things. The single most important term isn't the rate; it's what the rate is a percentage of, and what the company is allowed to subtract first.
NSR — Net Smelter Return
A percentage of revenue after the company subtracts costs — smelting, refining, transport, and (the big one) processing/leaching costs.
On a heap-leach copper operation, those deductions can shrink the effective royalty toward almost nothing.
GRR — Gross Revenue Royalty
A percentage of gross revenue, with no deductions.
Simpler, and far harder for anyone to erode. This is the structure we recommend owners ask for.
A simple illustration
Say copper sells for about $4.50 a pound:
- Under an NSR, after deductions the “net” might be roughly $0.50/lb — so a 2% NSR is about $0.01 a pound.
- Under a GRR, 2% of the full $4.50 is about $0.09 a pound.
Same 2% — roughly nine times the difference. The lesson: read the definition of the base and the list of allowable deductions before you ever argue about the rate. (Figures are illustrative.)
Make sure it covers ALL the metals
Deposits in this district can carry gold and silver along with the copper. The royalty should be written on all products sold — copper, gold, silver, and byproducts — not just “copper.” A gross royalty on total revenue captures the precious metals automatically; a “copper-only” royalty would quietly leave that value on the table.
Ways a royalty can be structured
- Flat rate — a single set percentage.
- Sliding scale — the rate rises with the metal price (or with production), so owners share more when prices are strong.
- Collars — a floor (minimum %) and a cap (maximum %), or a guaranteed minimum annual payment, so the royalty can't vanish in lean years.
- Pooled vs. per-lot — a pooled royalty is shared among owners who sign (simple, but more signers means smaller individual slices); a per-lot royalty pays each owner on production tied to their own ground.
The fine print that protects the value
- No buyback — the company can't purchase the royalty back cheaply and make it disappear.
- Not credited against rent — you receive the royalty and the annual payment, not just the higher of the two.
- Runs with the land — it survives a sale and binds whoever operates next.
- Audit rights — you can check the company's math.
See it in practice
How the company's initial royalty terms compare to the protections we recommend.
Where a royalty fits among the protections that matter most (water, access, financial assurance).
A royalty only pays if a project reaches production — here are the five stages, and where we are.
This page is a plain-language summary for community information. It is not legal or financial advice, and all figures are illustrative. Any royalty on federally owned minerals is a negotiated ask, not a guarantee. For your situation, consult a qualified Arizona mining / natural-resources attorney.