Resolution Copper Hands Out $110m in Arizona Mine Contracts
Two drilling and shaft-sinking specialists have been picked for roughly $110m of work at Resolution Copper's proposed Arizona underground mine, a spending step that says more about intent than about permits.
Resolution Copper has awarded contracts worth around $110m to Major Drilling America and Redpath USA Corporation to advance work on its proposed underground copper mine in Arizona.
Resolution Copper has committed roughly $110m to two contractors as it presses ahead with a proposed underground copper mine in Arizona, awarding work to Major Drilling America and Redpath USA Corporation. The awards were reported by Mining Technology.
The identity of the two firms tells you what stage the project is at. Major Drilling America is a drilling contractor — the business of putting holes in the ground to define and confirm an orebody, and to gather the geotechnical and hydrological data that underground engineering depends on. Redpath is an underground mining contractor, the kind of firm brought in for shaft sinking, lateral development and mine construction. Hiring both at once, for a combined sum in nine figures, is not a desk-study spend. It is the money you commit when you intend to keep an underground project physically moving.
Why $110m of drilling and shaft work is a statement of intent
Copper projects of this scale burn cash for years before they produce a pound of metal, and owners can slow that burn almost at will. Contract awards are therefore one of the more honest signals available to outsiders: contractors mobilise crews, rigs and hoisting equipment against schedules, and those commitments are expensive to unwind. Choosing to place around $110m of that kind of work suggests the owners expect the project to have a forward path rather than an indefinite pause.
The split between a drilling specialist and an underground contractor also hints at parallel workstreams rather than a single sequential campaign. Drilling supports resource definition and engineering inputs; underground contracting supports access, ventilation and the physical infrastructure any block-cave or deep underground operation needs long before first production. Running both simultaneously compresses the schedule — at the cost of spending more, earlier, on a project that still faces external hurdles.
Rio Tinto and BHP sit behind the venture
Resolution Copper is a joint venture associated with Rio Tinto PLC (LONDON: RIO) and BHP Group Ltd (ASX: BHP), the two names attached to the project in the market data supporting this story. For companies of that size, $110m of contracting is a rounding error against group capital budgets. What matters more is optionality: a large, long-life domestic copper resource in the United States is a scarce asset, and incremental spending preserves the right to build it if and when the wider conditions allow.
Neither share price moved in a way that suggests the market treated the awards as material. Rio Tinto closed at $101.91, up 0.80% on the day, having traded between $100.55 and $102.01, against a previous close of $101.10, as of 20:00 GMT on 10 August 2026. BHP closed at $90.61, up 0.22%, with a day range of $89.30 to $91.13 and a prior close of $90.41. Both edged higher on a session where broad US benchmarks drifted: the S&P 500 tracker (SPY) closed at $773.03, down 0.03%, the Nasdaq 100 tracker (QQQ) at $720.87, down 0.30%, and the Dow tracker (DIA) at $538.99, down 0.12%.
That non-reaction is the normal outcome for a diversified major. Contract awards at a single pre-production copper project rarely shift a group whose earnings come from iron ore, existing copper operations and other bulk commodities. The value of the news is informational rather than financial: it tells shareholders where management is putting engineering effort.
The permitting question the spending does not answer
The lead describes the mine as proposed. That word carries weight. Spending on drilling and underground contracting can proceed while a project’s approvals and land status remain contested, and a contract award is not the same as a construction decision or a green light from regulators. Investors should be careful not to read one as the other.
This is a recurring pattern across large copper developments worldwide: engineering advances at one pace, permitting at another, and the two only occasionally align. The industry’s supply problem is less about geology than about the years that elapse between defining an orebody and being allowed to mine it. A project can be technically ready and still stalled. Equally, keeping technical work current means that if the legal and permitting picture clears, the owners are not starting from a standing position.
What the copper supply backdrop makes of it
The industry’s supply problem is less about geology than about the years that elapse between defining an orebody and being allowed to mine it.
Copper demand narratives — electrification, grid build-out, data-centre power infrastructure — have made large new sources of the metal strategically interesting to governments as well as miners. A domestic US underground copper resource fits squarely into that conversation. But the metal only counts once it is mined, and the gap between announced projects and producing mines is where most of the world’s copper deficit forecasts live.
For that reason, the useful way to read a $110m award is as one data point in a multi-year sequence, not a turning point. It confirms activity. It does not confirm a start date, a capital cost, a production profile or an approval.
Markers to watch from here
- Scope disclosure: whether the drilling and underground contracts are described as feasibility-stage work or as early mine construction. The distinction determines how far along the project really is.
- Contract duration: the length of the mobilisation and work programmes, which gives a rough floor under how long the owners expect activity to continue.
- Approvals and land status: any change in the legal or permitting position, the single largest determinant of whether the spending converts into a mine.
- Owner capital guidance: whether Rio Tinto or BHP name the project in future capital allocation commentary, which would elevate it from optionality to committed spend.
- Follow-on awards: further contracts, particularly for hoisting, ventilation or surface infrastructure, would indicate escalation rather than maintenance.
Until those markers move, the position is straightforward: a proposed Arizona copper mine has just secured about $110m of drilling and underground contracting talent, and two of the world’s largest miners have shown they are willing to keep paying to keep the option alive.
Key facts
- Contract value: Around $110m awarded by Resolution Copper
- Contractors: Major Drilling America and Redpath USA Corporation
- Rio Tinto (LONDON: RIO): $101.91, +0.80%, close of 10 Aug 2026 20:00 GMT
- BHP Group (ASX: BHP): $90.61, +0.22%, close of 10 Aug 2026 20:00 GMT
Frequently asked questions
What exactly did Resolution Copper award?
Resolution Copper selected Major Drilling America and Redpath USA Corporation for contracts totalling around $110m. The work is tied to developing its proposed underground copper mine in Arizona. Major Drilling America is a drilling contractor, while Redpath is an underground mining contractor typically engaged for shaft sinking and mine development work.
Does the award mean the Arizona mine has been approved?
No. The lead describes the mine as proposed, and a contract award is not a regulatory approval or a formal construction decision. Drilling and underground contracting work can proceed while a project’s permitting and land status remain unresolved. Investors should treat the spending as evidence of continued technical activity, not of a green light.
Which companies are behind Resolution Copper?
Resolution Copper is a joint venture associated with Rio Tinto PLC (LONDON: RIO) and BHP Group Ltd (ASX: BHP), the two miners named in the market data accompanying this story. For groups of that size, a $110m contracting commitment is small relative to overall capital budgets and mainly preserves the option to build the project later.
How did the owners’ shares respond?
Neither stock moved in a way suggesting the news was treated as material. As of the close on 10 August 2026, Rio Tinto finished at $101.91, up 0.80% from a previous close of $101.10. BHP closed at $90.61, up 0.22% from $90.41. Broad US benchmarks were slightly lower on the same session.
Why do contract awards matter as a signal in mining?
Contractors mobilise crews and equipment against schedules, and those commitments are costly to reverse. That makes an award a relatively honest indicator of an owner’s near-term intent, compared with statements of ambition. Placing roughly $110m of drilling and underground work implies the owners expect activity to continue rather than pause indefinitely.
What should investors watch next on this project?
Key markers include whether the contracts cover feasibility-stage work or early construction, how long the work programmes run, any change in permitting or land status, whether Rio Tinto or BHP name the project in capital allocation guidance, and whether follow-on awards for hoisting, ventilation or surface infrastructure appear.
Sources
- Resolution Copper awards $110m contracts for Arizona mine — Mining Technology
Photo: Strange Happenings · Pexels Licence — source
