Jun 10, 2021

Cornish Metals: tin-copper project ramps resource estimate

tech metals
3 min
Cornish Metals releases updated resource estimate for South Crofty tin-copper mine in Cornwall, UK showing it to be 10% richer than anticipated

Cornish Metals has updated the resource estimate for its South Crofty project in Cornwall, UK. The Canadian junior, formerly known as Strongbow Explorations, has been working to re-open the mine which closed in 1998 following over 400 years of continuous production.

Additional sampling revealed the tin-copper mine to be 10% richer in indicated resources of tin for the lower mine to 2.08 million tonnes. The updated mineral resource estimate also showed a near 130% gain in inferred tin resources at the lower mine to 1.94 million tonnes.

Cornish Metals contributing to the green economy

“We are very pleased with the outcome of this new Mineral Resource Estimate, which shows a material increase in both tonnage and contained tin in the ground at South Crofty,” commented Richard Williams, CEO of Cornish Metals.

“Following on from our successful surface drilling campaign in 2020, where we intersected high-grade tin mineralisation below the historical workings, this new Mineral Resource Estimate confirms our belief in the resource expansion potential at South Crofty.”

“Coming at a time when governments around the world are increasingly focussed on reducing carbon emissions, enhancing security of supply of critical minerals, investing in technology and developing the green economy, this is a further demonstration that Cornwall has the potential to become a significant tin producer once again and make a valuable contribution to providing the responsibly sourced technology metals that we need to meet our climate change goals.”

Cornish Metals drill results

Cornwall at the epicentre of the UK mining industry’s renaissance

The UK’s Department of International Trade (DIT) has identified Cornwall's mining sector as a High Potential Opportunity for investment, noting the ability to supply more than half of Britain’s lithium needs and other significant high technology metals.

Cornish Lithium has announced the completion of its geothermal water test site where it will trial direct lithium extraction (DLE) technologies at its lithium in hard rock Trelavour project.

Cornwall has the potential to supply two-thirds of Britain's lithium needs - the equivalent of one million electric vehicles per year, which will greatly assist in the government’s planned phase out of new petrol and diesel cars by 2030. 

Darryn Quayle, Mining Engineer & Specialist at the Department for International Trade, commented: “Cornwall not only has the natural resources to meet growing demands for high technology metals, the world-leading mining expertise in the region offer easy access to international networks. As the UK moves towards net zero, Cornwall will be at the heart of the extraction of high-technology metals, growing our economy and establishing a secure and responsible UK supply chain.”

Cornish Metals – South Crofty project overview

Since acquiring the project in 2016, Cornish Metals has completed and published maiden NI 43-101 mineral resources for South Crofty using the vast archive of historical production data and more recent drilling completed between 2007 and 2013. In 2017, Cornish Metals completed a Preliminary Economic Assessment that demonstrated the economic viability of re-opening the mine.

  • P&E Mining Consultants provided an initial MRE in 2016. Since then, additional sampling information has been audited, verified and added to the resource model leading to an updated MRE for the “Lower Mine” and a re-stated MRE for the “Upper Mine” using updated metal prices to calculate tin equivalent grades;
  • The “Lower Mine” MRE is reported using a 0.6% tin (“Sn”) cut-off grade and the “Upper Mine” is reported using a 0.6% tin equivalent (“SnEq.”) cut-off grade, the same cut-off grades as the 2016 MRE;
  • The MRE was prepared by Cornish Metals’ in-house geology team and independently reviewed and verified by Nicholas Szebor of AMC Consultants (UK) Ltd (“AMC”), who takes responsibility for the estimate;
  • The “Lower Mine” contains tin mineralisation within quartz-tourmaline veins or “lode” structures, which are hosted entirely within granitic rocks;
  • The “Upper Mine” contains tin, copper and zinc mineralisation within quartz-chlorite veins, predominantly hosted within meta-sedimentary units;
  • AMC will prepare and file an updated NI 43-101 Technical Report within 45 days of this announcement; and
  • The major lode structures that comprise the Mineral Resource remain open along strike and to depth.

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Jun 17, 2021

People Moves: Peter Cunningham appointed Rio Tinto CFO

Rio Tinto
Peter Cunningham
financial planning
Renewable Energy
2 min
Rio Tinto has appointed Peter Cunningham its Chief Financial Officer and he will also join the Board as an executive director

Rio Tinto has appointed Peter Cunningham as Chief Financial Officer (CFO) with immediate effect. Peter, who has been Interim Chief Financial Officer since 1 January 2021, will also join the Rio Tinto Board as an executive director at the same time.

Peter Cunningham appointed Rio Tinto CFO

Peter Cunningham was previously Group Controller and has held a number of senior financial and non-financial leadership positions across Rio Tinto in Australia and the UK. In a career spanning 28 years with Rio Tinto, he has held roles including Global Head of Health, Safety, Environment & Communities; Head of Energy and Climate Strategy; and Head of Investor Relations.

Prior to joining Rio Tinto, Peter qualified as a chartered accountant.

Rio Tinto CEO Jakob Stausholm commented: “I am delighted to confirm Peter in the role and, having worked closely with him for a number of years, I know he is the ideal person to be our Chief Financial Officer. His detailed knowledge of the company and of the financial and non-financial drivers of our industry will be invaluable as we continue to strengthen Rio Tinto.”

Rio Tinto Chairman Simon Thompson added: "I look forward to Peter joining the Rio Tinto Board and know from experience that his deep understanding of Rio Tinto and commitment to disciplined capital allocation will serve shareholders well and enrich our Board discussions.”

Rio Tinto aiming for net zero by 2050

Rio Tinto is aiming to reach net zero emissions across its operations by 2050. Across the company, it is targeting a 15% reduction in absolute emissions and a 30% reduction in emissions intensity by 2030, from a 2018 baseline.

Aluminium is found in everything from cars to phones. But one of the challenges of producing this essential material responsibly is finding ways to decarbonise the process.

Part of the reason is creating alumina – the main ingredient in aluminium – takes a lot of energy, which in turn creates greenhouse gas emissions. New technologies will be essential to helping reduce emissions, but many haven’t been proven. And some not yet even discovered. Rio Tinto is partnering with the Australian Renewable Energy Agency (ARENA)to develop hydrogen energy options and make a positive step towards these goals.

Rio Tinto Weipa

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