Rio Tinto has approved a $108 million investment in underground development to enable early orebody access and undertake orebody characterisation studies for underground mining at the Kennecott copper operations in the United States. The investment builds on $25 million approved in early-2020 to complete a pre-feasibility study to determine the viability of underground mining operations at Kennecott. Potential …

Rio Tinto has approved a $108 million investment in underground development to enable early orebody access and undertake orebody characterisation studies for underground mining at the Kennecott copper operations in the United States.

The investment builds on $25 million approved in early-2020 to complete a pre-feasibility study to determine the viability of underground mining operations at Kennecott. Potential underground mining would occur concurrently with open pit operations and result in increased copper output.

Kennecott holds the potential for a significant and attractive underground development, with declared Mineral Resources of 20 Mt at 3.65% copper and 1.62 g/t gold 1 with further upside potential based on drilling.

The feasibility study work will focus on gathering critical geological, geotechnical and hydrogeological data to inform Rio Tinto’s assessment of underground development options and is expected to be completed in 2024. Existing infrastructure from previous underground projects will be extended to access the North Rim Skarn orebody, allowing for the development of crosscuts and further drilling of the resource. The project includes approximately 15,000 feet (4,500 metres) of lateral development, 1,000 feet (300 metres) of vertical development and associated support infrastructure.

The project will also include the trial of underground battery electric vehicles to reduce carbon emissions at Kennecott and across Rio Tinto’s global operations. Sandvik Mining and Rock Solutions will supply a battery electric haul truck and loader to evaluate performance and suitability for future underground mining fleets.

Pre-feasibility studies are also being progressed to extend open pit mining at Kennecott beyond 2032, with a further push back of the North Wall to allow access to Mineral Resources. This follows a $1.5 billion investment in the second phase of the South Wall Pushback project, approved in 2019, to allow open cut mining to continue between 2026 and 2032.

Rio Tinto Copper Chief Executive Bold Baatar said: “Kennecott holds a range of options to extend our supply of copper and other critical materials, to meet the strong demand being driven by electric vehicles and renewable power technologies.

“The operation is uniquely positioned to supply these emerging markets, with one of only two operating smelters in the United States that also processes concentrates from third parties, a long history delivering high quality products and significant resources that are yet to be developed.”

1 This underground Mineral Resource estimate (North Rim Skarn) was included in Rio Tinto’s 2020 Annual Report released to the ASX on 22 February 2021 which is available at https://www.riotinto.com/invest/reports/annual-report . The Competent Person responsible for this Mineral Resource estimate was Ryan Hayes (AusIMM). Rio Tinto is not aware of any new information or data that materially affects this Mineral Resource estimate and confirms that all material assumptions and technical parameters underpinning this Mineral Resource estimate continue to apply and have not materially changed. The form and context in which the Competent Person’s findings are presented have not been materially modified from the 2020 Annual Report.

Notes to Editors

Kennecott operates an advanced copper and precious metals smelter, processing concentrate from Kennecott and third parties.

In addition to copper, Kennecott is one of the largest producers of gold, silver, and molybdenum in North America. Construction is underway on a plant to recover tellurium, a critical mineral used in solar panels, from copper refining at Kennecott. Rio Tinto is working with experts from the US Department of Energy’s Critical Materials Institute (CMI) on ways to extract further critical minerals from the existing refining and smelting processes.

Please direct all enquiries to media.enquiries@riotinto.com

Media Relations, UK
Illtud Harri
M +44 7920 503 600

David Outhwaite
M +44 7787 597 493

Media Relations, Americas
Matthew Klar
T +1 514 608 4429

Investor Relations, UK
Menno Sanderse
M: +44 7825 195 178

D avid Ovington
M +44 7920 010 978

Clare Peever
M +44 7788 967 877

Media Relations, Australia
Jonathan Rose
M +61 447 028 913

Matt Chambers
M +61 433 525 739

Jesse Riseborough
M +61 436 653 412

Investor Relations, Australia
Natalie Worley
M +61 409 210 462

Amar Jambaa
M +61 472 865 948

Rio Tinto plc
6 St James’s Square
London SW1Y 4AD
United Kingdom
T +44 20 7781 2000
Registered in England
No. 719885

Rio Tinto Limited
Level 7, 360 Collins Street
Melbourne 3000
Australia
T +61 3 9283 3333
Registered in Australia
ABN 96 004 458 404

riotinto.com

Category: Kennecott

News Provided by Business Wire via QuoteMedia

Australia Resource Investing 101

If you’re reading this, chances are you’ve seen some of the recent buzz around Australia as a destination for resource investment and potential profit.

Australia ranks as the 13th largest economy in the world, due in no small part to its mineral largess. Between 2010 and 2020, mining contributed an impressive 10.4 percent to Australia’s economy, translating to a gross domestic product of AU$202 billion.

The country is a global mining hotspot, and its abundant natural resources and government incentives have attracted some of the mining industry’s biggest names: BHP (ASX:BHP,LSE:BHP,NYSE:BHP), Rio Tinto (ASX:RIO,LSE:RIO,NYSE:RIO) and Newcrest Mining (ASX:NCM,OTC Pink:NCMGF).

Keep reading... Show less

Galaxy Resources Limited Announcement

Galaxy Resources Limited (ASX: GXY) ( Company ) advises that the following announcement has been made to the Australian Securities Exchange which appears on the Company’s platform (ASX):

  • Change in directors interest notice – MR

The announcement can be viewed at:

Keep reading... Show less

Elizabeth Geophysical Survey Highlights Scale Potential

HIGHLIGHTS

  • The first ever high resolution airborne geophysics survey on Elizabeth has identified the potential for a much larger scale gold system that significantly increases the footprint and depth extensions of potential gold mineralisation
  • The Blue Creek Porphyry intrusion, which hosts the high-grade gold mineralisation at Elizabeth likely covers an area >4x its previously known extent
  • The Blue Creek Porphyry appears to extend at least 2km below surface (ie, approximately 10x deeper than currently drill-tested)
  • Two additional anomalies have been identified as potential intrusive bodies similar to the Blue Creek Porphyry. These two anomalies show strong continuity along strike and are also extensive at depth

Tempus Resources Ltd (” Tempus ” or the ” Company “) (ASX:TMR)(TSX.V:TMRR)(OTCQB:TMRFF) is pleased to announce the results of the first ever high resolution airborne magnetic and radiometric geophysical surveys completed over the entire Elizabeth Gold Project in Southern BC, Canada

Keep reading... Show less

Rio Tinto and Komatsu partnering for zero-emission mining

Rio Tinto and Komatsu are partnering to fast-track the development and implementation of zero-emission mining haulage solutions, including haul trucks.

Rio Tinto will conduct a pre-production trial of the new equipment at a Rio Tinto site and has the option to purchase some of the first trucks from Komatsu once they are commercially viable.

Keep reading... Show less

Hastings Technology Metals Ltd Onslow Selected for Yangibana RE Hydrometallurgical Plant

Perth, Australia (ABN Newswire) – Australia’s next rare earths producer, Hastings Technology Metals Ltd (ASX:HAS) (FRA:5AM) is pleased to announce that it has received conditional approval from the WA Government to develop the Yangibana Rare Earths Project’s (Yangibana) hydrometallurgical plant in the Ashburton North Strategic Industrial Area (ANSIA), near Onslow on the Pilbara coast.

ANSIA is home to Chevron’s Wheatstone and BHP’s Macedon gas projects and offers Hastings access to key utilities as well as proximity to a skilled workforce in Onslow and the town’s port and airport facilities.

The ANSIA location has access to key connections services required for rare earths processing, such as piped natural gas, sufficient water and power, which are all located within close proximity of the proposed Yangibana hydrometallurgical location.

Keep reading... Show less

Australia Resource Investing 101

If you’re reading this, chances are you’ve seen some of the recent buzz around Australia as a destination for resource investment and potential profit.

Australia ranks as the 13th largest economy in the world, due in no small part to its mineral largess. Between 2010 and 2020, mining contributed an impressive 10.4 percent to Australia’s economy, translating to a gross domestic product of AU$202 billion.

The country is a global mining hotspot, and its abundant natural resources and government incentives have attracted some of the mining industry’s biggest names: BHP (ASX:BHP,LSE:BHP,NYSE:BHP), Rio Tinto (ASX:RIO,LSE:RIO,NYSE:RIO) and Newcrest Mining (ASX:NCM,OTC Pink:NCMGF).

Keep reading... Show less

Galaxy Resources Limited Announcement

Galaxy Resources Limited (ASX: GXY) ( Company ) advises that the following announcement has been made to the Australian Securities Exchange which appears on the Company’s platform (ASX):

  • Change in directors interest notice – MR

The announcement can be viewed at:

Keep reading... Show less

Elizabeth Geophysical Survey Highlights Scale Potential

HIGHLIGHTS

  • The first ever high resolution airborne geophysics survey on Elizabeth has identified the potential for a much larger scale gold system that significantly increases the footprint and depth extensions of potential gold mineralisation
  • The Blue Creek Porphyry intrusion, which hosts the high-grade gold mineralisation at Elizabeth likely covers an area >4x its previously known extent
  • The Blue Creek Porphyry appears to extend at least 2km below surface (ie, approximately 10x deeper than currently drill-tested)
  • Two additional anomalies have been identified as potential intrusive bodies similar to the Blue Creek Porphyry. These two anomalies show strong continuity along strike and are also extensive at depth

Tempus Resources Ltd (” Tempus ” or the ” Company “) (ASX:TMR)(TSX.V:TMRR)(OTCQB:TMRFF) is pleased to announce the results of the first ever high resolution airborne magnetic and radiometric geophysical surveys completed over the entire Elizabeth Gold Project in Southern BC, Canada

Keep reading... Show less

Rio Tinto and Komatsu partnering for zero-emission mining

Rio Tinto and Komatsu are partnering to fast-track the development and implementation of zero-emission mining haulage solutions, including haul trucks.

Rio Tinto will conduct a pre-production trial of the new equipment at a Rio Tinto site and has the option to purchase some of the first trucks from Komatsu once they are commercially viable.

Keep reading... Show less

Hastings Technology Metals Ltd Onslow Selected for Yangibana RE Hydrometallurgical Plant

Perth, Australia (ABN Newswire) – Australia’s next rare earths producer, Hastings Technology Metals Ltd (ASX:HAS) (FRA:5AM) is pleased to announce that it has received conditional approval from the WA Government to develop the Yangibana Rare Earths Project’s (Yangibana) hydrometallurgical plant in the Ashburton North Strategic Industrial Area (ANSIA), near Onslow on the Pilbara coast.

ANSIA is home to Chevron’s Wheatstone and BHP’s Macedon gas projects and offers Hastings access to key utilities as well as proximity to a skilled workforce in Onslow and the town’s port and airport facilities.

The ANSIA location has access to key connections services required for rare earths processing, such as piped natural gas, sufficient water and power, which are all located within close proximity of the proposed Yangibana hydrometallurgical location.

Keep reading... Show less

Lake Resources NL Quarterly Activities Report

Sydney, Australia (ABN Newswire) – Lake Resources NL (ASX:LKE) (FRA:LK1) (OTCMKTS:LLKKF) is a lithium developer utilising clean, direct extraction technology for the development of high purity lithium products with significant ESG benefits from its flagship Kachi Project (4.4mt LCE resource), and three other lithium brine projects in Argentina. No mining is involved in the brine processing.

Lake owns over 220,000 hectares (0.5 million acres) of leases in a prime location within the Lithium Triangle, alongside all 5 major lithium producers.

A key difference in Lake’s development plan to lithium production is to use an efficient direct lithium extraction method (DLE) from our technology partner, Lilac Solutions Inc. This enables Lake Resources to be a cost competitive supplier of high-purity lithium carbonate with a low carbon (CO2) footprint, low water use and low land use – strong Environmental, Social, Governance (ESG) benefits.

Keep reading... Show less

Top News

Related News