Primary sources. Daily. It ends. Edition No. 2 · Finite

The Assay

Mining · Colorado River Basin · Economy · AI & Technology


Mining

Regulation, permitting & markets
Au $3,412/oz 0.6% Ag $41.18/oz 1.2% Cu $4.87/lb 0.4% Li $11,240/t 1.1% U $89.50/lb 0.3% as of Jun 9
Regulation & Permitting

BLM Opens 60-Day Comment Period on Sage-Grouse RMP Implementation Guidance

BLM published draft implementation guidance for the 2026 greater sage-grouse resource management plan amendments, opening a 60-day comment window. The draft addresses how field offices will apply lek timing stipulations and compensatory mitigation ratios to existing rights-of-way and notice-level operations.

The guidance, not the amendments themselves, is where most operational friction will be decided. (Sample content.)

Why it matters

Implementation guidance is where rangewide policy becomes site-specific cost. Operators with ROWs in priority habitat have one comment window to shape how 'existing authorization' is read — after that, the reading belongs to the district office.

Bureau of Land Management

Nevada BMRR Posts Q2 Bonding Rate Updates for Reclamation Cost Estimates

The Nevada Division of Environmental Protection's Bureau of Mining Regulation and Reclamation published its semi-annual update to standardized reclamation cost inputs. Estimates submitted after July 1 must use the new rates. (Sample content.)

Why it matters

Anyone with a bond calculation in flight has three weeks to decide whether to file under the current rates or absorb the update — on a large heap-leach closure estimate, the difference is not rounding error.

NDEP — Bureau of Mining Regulation & Reclamation

Business & Markets

Gold Holds Above $3,400 as Producers Report Margin Expansion

Spot gold held above $3,400/oz this week as early Q2 producer updates showed all-in sustaining costs broadly flat year-over-year. The margin expansion is reviving board appetite for restarts and brownfield expansions shelved during the 2023–24 cost inflation cycle. (Sample content.)

Why it matters

Sustained margins at these levels change which projects pencil — and which dormant permits suddenly have owners motivated to perfect them. Expect the permitting queue to lengthen before the price does anything interesting.

S&P Global Market Intelligence

Cross-filed from other sections

Crossfile · Economy & Finance

Treasury Finalizes 45X Guidance on Domestic Critical-Minerals Content

Treasury and the IRS issued final regulations for the Section 45X advanced manufacturing production credit's critical-minerals provisions, settling the domestic-content phase-in schedule and the treatment of allied-nation feedstock. (Sample content.)

Why it matters

This is the demand signal for domestic mine development dressed up as tax guidance. The phase-in schedule is effectively a procurement timeline for U.S. ore — and a dating mechanism for which projects need permits in hand by when.

U.S. Department of the Treasury