Stock Markets March 24, 2026 01:23 PM

Rio Tinto Aims for Mid-2030s Start at Arizona Resolution Copper Project

Company begins $500 million drilling push after securing access to previously blocked acreage; first copper still expected within a decade

By Ajmal Hussain
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RIO

Rio Tinto has started an extensive drilling program at the Resolution Copper site in Arizona after obtaining control of the acreage needed to build the mine. The Anglo-Australian miner said the exploration work will inform a production timetable that could see the mine come into operation in the early to mid-2030s, with initial copper targeted within the next ten years.

Rio Tinto Aims for Mid-2030s Start at Arizona Resolution Copper Project
RIO
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Key Points

  • Rio Tinto secured control of acreage required to develop the Resolution Copper project in Arizona.
  • The company has started a $500 million drilling campaign to explore the 30% of the deposit that was previously inaccessible; results will guide the production timeline.
  • Rio expects first copper within ten years and is targeting an early to mid-2030s opening for the mine; sectors impacted include mining, metals markets, and domestic smelting operations.

Rio Tinto is moving forward with exploration and planning for the Resolution Copper deposit in Arizona, targeting a mine opening in the early to mid-2030s, a senior company executive told Reuters. The miner this month secured control of the land required to build one of the worlds largest copper mines after resolving a protracted legal dispute that had limited access.

With the acreage now under its control, Rio Tinto has launched a $500 million drilling campaign focused on the roughly 30% of the deposit that was previously inaccessible. The company said the new drilling will be central to determining an operational timetable for the project, although it reiterated that first copper production is expected within a decade.

"We are quite committed to bringing copper on as quickly as we can," Katie Jackson, head of Rios copper business, said on the sidelines of the CERAWeek by S&P Global conference in Houston. "This is something we want to do in the early to mid 2030s."

The firm also operates the Kennecott copper mine and smelter in Utah, and the company noted that all of Kennecotts production is consumed domestically in the United States. The article also noted that the only other U.S. copper smelter is operated by Freeport-McMoRan.

Rios immediate focus is the intensive exploration program aimed at the portion of the deposit that the company could not previously access. Company representatives described the drilling as a necessary step to convert the newly available acreage into an actionable production plan. While the new work is substantial in scale, the company maintained that the fastest path to initial output remains within a ten-year horizon from now.

The timeline provided by Rio Tinto emphasizes a multi-year development process - from exploration and permitting through construction - with the company publicly framing the project as a priority in its copper portfolio. The firms statements at the conference underline a commitment to accelerate development where feasible, while tying any specific production dates to the results of the ongoing exploration.


What remains clear from the companys announcements:

  • Rio Tinto has acquired control of the remaining acreage required to develop Resolution Copper.
  • The company has initiated a $500 million drilling program focused on the 30% of the deposit it previously could not access.
  • Rio expects first copper from the project within a decade and says it aims to bring the mine online in the early to mid-2030s.

Risks

  • The production timeline remains contingent on the outcome of the ongoing $500 million drilling program and the results could alter the expected schedule - this affects the mining and metals sectors.
  • Development and permitting steps between exploration and bringing a mine into production introduce uncertainty around the mid-2030s target - this impacts infrastructure and capital-intensive project financing in the mining sector.

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