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Arizona Sonoran Initiates Pre-Feasibility Study; Appoints M3 Engineering and Begins PFS Workstreams

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Arizona Sonoran Copper Company (TSX:ASCU | OTCQX:ASCUF) has appointed M3 Engineering to lead the Cactus Project Pre-Feasibility Study (PFS), expected to be completed in the second half of 2025. The study will focus on upgrading the Parks/Salyer deposit to PFS level, following its rescoping as an open pit mine in the August 2024 Preliminary Economic Assessment (PEA).

Upcoming workstreams include exploration and infill drilling, mine design and scheduling, and technical studies. The company will continue working with Nuton Technologies to develop an integrated PFS. Trade-off studies for optimization include in-pit crushing and conveying, adjusting the Parks/Salyer open pit location, primary sulphide extraction scenarios, and options to smooth cathode production over the mine's life.

L'Arizona Sonoran Copper Company (TSX:ASCU | OTCQX:ASCUF) ha nominato M3 Engineering per guidare lo Studio di Prefattibilità del Progetto Cactus (PFS), che si prevede sarà completato nella seconda metà del 2025. Lo studio si concentrerà sull'aggiornamento del deposito Parks/Salyer al livello PFS, dopo la sua ristrutturazione come miniera a cielo aperto nell'Analisi Economica Preliminare (PEA) di agosto 2024.

Le prossime attività includono esplorazione e perforazione di riempimento, progettazione e programmazione della miniera, e studi tecnici. La società continuerà a collaborare con Nuton Technologies per sviluppare un PFS integrato. Gli studi di trade-off per l'ottimizzazione includono la frantumazione e il trasporto in miniera, l'aggiustamento della posizione della miniera a cielo aperto Parks/Salyer, scenari di estrazione di solfuri primari e opzioni per uniformare la produzione di catodi durante la vita della miniera.

La Arizona Sonoran Copper Company (TSX:ASCU | OTCQX:ASCUF) ha nombrado a M3 Engineering para liderar el Estudio de Prefactibilidad del Proyecto Cactus (PFS), que se espera esté completado en la segunda mitad de 2025. El estudio se centrará en la actualización del depósito Parks/Salyer al nivel PFS, tras su reestructuración como mina a cielo abierto en la Evaluación Económica Preliminar (PEA) de agosto de 2024.

Los próximos flujos de trabajo incluyen exploración y perforación de relleno, diseño y programación de la mina, y estudios técnicos. La empresa continuará trabajando con Nuton Technologies para desarrollar un PFS integrado. Los estudios de alternativas para la optimización incluyen la trituración y el transporte dentro de la mina, ajustar la ubicación de la mina a cielo abierto Parks/Salyer, escenarios de extracción de sulfuros primarios y opciones para suavizar la producción de cátodos a lo largo de la vida útil de la mina.

아리조나 소노란 구리 회사 (TSX:ASCU | OTCQX:ASCUF)는 M3 Engineering카투스 프로젝트의 사전 타당성 조사 (PFS)를 이끌어갈 주체로 임명했으며, 이는 2025년 하반기에 완료될 예정이다. 이 연구는 2024년 8월의 예비 경제 평가 (PEA)에서 개방채광광산으로 재구성된 Parks/Salyer 광상을 PFS 수준으로 업그레이드하는 데 초점을 맞출 것이다.

향후 작업 흐름에는 탐사 및 보충 시추, 광산 설계 및 일정 수립, 기술 연구가 포함된다. 회사는 Nuton Technologies와 협력하여 통합 PFS를 개발하는 작업을 계속 진행할 것이다. 최적화를 위한 대안 연구에는 채굴 구역 내 파쇄 및 운반, Parks/Salyer 개방채광광산 위치 조정, 주요 황화물 추출 시나리오 및 광산의 생애에 걸쳐 양극 생산을 평준화하는 옵션이 포함된다.

La Arizona Sonoran Copper Company (TSX:ASCU | OTCQX:ASCUF) a nommé M3 Engineering pour diriger l'Étude de Pré-Faisabilité du Projet Cactus (PFS), qui devrait être achevée dans la deuxième moitié de 2025. L'étude se concentrera sur la mise à niveau du gisement Parks/Salyer au niveau PFS, suite à sa restructuration en tant que mine à ciel ouvert dans l'Évaluation Économique Préliminaire (PEA) d'août 2024.

Les prochaines tâches comprennent l'exploration et le forage de remplissage, la conception et la planification de la mine, ainsi que des études techniques. L'entreprise continuera de travailler avec Nuton Technologies pour développer un PFS intégré. Les études d'évaluation pour l'optimisation incluent le concassage et le transport in-pit, l'ajustement de la localisation de la mine à ciel ouvert Parks/Salyer, des scénarios d'extraction des sulfures primaires et des options pour lisser la production de cathodes tout au long de la vie de la mine.

Die Arizona Sonoran Copper Company (TSX:ASCU | OTCQX:ASCUF) hat M3 Engineering beauftragt, die Machbarkeitsstudie für das Cactus-Projekt (PFS) zu leiten, die voraussichtlich in der zweiten Hälfte von 2025 abgeschlossen sein wird. Die Studie wird sich darauf konzentrieren, das Parks/Salyer-Vorkommen auf PFS-Niveau zu bringen, nachdem es in der vorläufigen Wirtschaftlichkeitsbewertung (PEA) von August 2024 als Tagebau umgestaltet wurde.

Zukünftige Arbeitsströme umfassen Exploration und Infill-Bohrungen, Bergbauplanung und -terminierung sowie technische Studien. Das Unternehmen wird weiterhin mit Nuton Technologies zusammenarbeiten, um eine integrierte PFS zu entwickeln. Die Abwägungsstudien zur Optimierung umfassen das Brechen und Fördern im Tagebau, die Anpassung des Standorts des Parks/Salyer-Tagebaus, Szenarien zur primären Sulfit-Extraktion und Optionen zur Glättung der Kathodenproduktion über die gesamte Lebensdauer der Mine.

Positive
  • Appointment of experienced M3 Engineering to lead the Pre-Feasibility Study
  • Incorporation of MainSpring Property's mineralized material into the mine plan
  • Identification of significant inferred copper mineral resource at MainSpring
  • Rescoping of Parks/Salyer as an open pit mine, potentially improving project economics
  • Ongoing optimization studies to enhance project efficiency and production
Negative
  • PFS completion not expected until second half of 2025, potentially delaying project development
  • Reliance on inferred mineral resources for initial production years
  • Potential changes to project scope may impact previous economic assessments

CASA GRANDE, Ariz. & TORONTO--(BUSINESS WIRE)-- Arizona Sonoran Copper Company Inc. (TSX:ASCU | OTCQX:ASCUF) (“ASCU” or the “Company”) today announces that following a request for proposal, ASCU has appointed M3 Engineering, Tucson, to lead the Cactus Project Pre-Feasibility Study (the “PFS”) and to act as metallurgical program lead. The consultants will include AGP (mining), Clear Creek (hydrology), ALS Geotechnical (geology), and Partners in Performance (real-time modeling and optimization), all of whom have contributed to ASCU’s prior studies. The Company anticipates the PFS to be completed in the second half of 2025.

Pre-Feasibility Study Workstreams

The Cactus Mine plan, and in particular the first five years of mining, was rescoped in the August 2024 Preliminary Economic Assessment (the “PEA”) (see news release dated August 7, 2024) by the incorporation of mineralized material from the MainSpring Property. The MainSpring title transfer took place in March 2024. An initial drilling program on the MainSpring property was complete in April 2024 and identified a significant inferred copper mineral resource as the near surface and southern extension of the Parks/Salyer deposit (see news release dated July 16, 2024). The updated mineral resource ultimately rescoped Parks/Salyer as an open pit mine from an underground scenario, comprising the initial years of proposed production. The focus of the coming months will be upgrading the entirety of the Parks/Salyer deposit to the PFS level. Upcoming workstreams in preparation of the PFS, include:

  • Exploration and infill drilling,
  • Mine design and scheduling, and
  • Technical studies and project support, including:
    • Geotechnical and hydrological drilling, and
    • Metallurgical test work.

Bernie Loyer, ASCU SVP Projects, commented, “Continuing to use M3 and supporting consultants was a logical choice due to their strong working knowledge of the Project, the close proximity of their engineering centers in Chandler, Tucson and Hermosillo and the long-term productive working relationship between our two project teams in the execution of multiple large projects across a wide range of jurisdictions including Arizona, Mexico, Peru, Chile and Argentina. M3 Engineering’s focus and performance on the recently completed PEA is testimony to the efficiency of that working relationship, setting an optimum stage for the next level of study. Additionally, we continue to develop the base case scenario while working closely with our partners at Nuton Technologies to develop an integrated Pre-Feasibility Study.”

Opportunities

Having already led the PEA for the Cactus Project in 2024, M3 and the Consultants have a strong working knowledge of the Project’s characteristics and opportunities. Trade-off studies for continued optimization of the current scope, include:

  • In-pit and near-pit crushing and conveying,
  • Shifting the Parks/Salyer open pit centroid north,
  • Primary sulphide extraction scenarios,
  • Options to adjust and smooth cathode production and cash flows over the life of mine, and
  • Waste dump reclamation studies (backfilling)

Neither the TSX nor the regulating authority has approved or disproved the information contained in this press release.

About M3 Engineering (www.m3eng.com)

M3 Engineering provides continuous design and construction services from project conception to final testing and integration. Members of the Company have had significant experience building Solvent Extraction and Electrowinning projects within the USA and in Mexico, including Newmont’s Peñasquito mine, Nevada Gold Mines (Barrick and Newmont) Phoenix mine, KGHM Carlota mine, Cobre del Mayo Piedras Verdes mine and the Taseko Florence pilot plant.

About Arizona Sonoran Copper Company (www.arizonasonoran.com | www.cactusmine.com)

ASCU is a copper exploration and development company with a 100% interest in the brownfield Cactus Project. The Project, on privately held land, contains a large-scale porphyry copper resource and a recent PEA proposes a generational open pit copper mine with robust economic returns. Cactus is a lower risk copper developer benefitting from a state-led permitting process, in place infrastructure, highways and rail lines at its doorstep and onsite permitted water access. The Company objective is to develop Cactus and become a mid-tier copper producer with low operating costs, that could generate robust returns and provide a long-term sustainable and responsible operation for the community, investors and all stakeholders. The Company is led by an executive management team and Board which have a long-standing track record of successful project delivery in North America complemented by global capital markets expertise.

For more information on the Cactus Copper Project, including the referenced preliminary economic assessment (or PEA), please refer to the Company’s news release dated August 7, 2024 and the corresponding technical report for the Project, both available on the Company’s website at www.arizonasonoran.com and under its issuer profile at www.sedarplus.ca.

Cautionary Statements regarding Forward-Looking Statements and Other Matters

Forward-Looking Statements

All statements, other than statements of historical fact, contained or incorporated by reference in this news release constitute “forward-looking statements” and "forward-looking information" (collectively, “forward-looking statements”) within the meaning of applicable Canadian and United States securities legislation. Generally, these forward-looking statements can be identified by the use of forward-looking terminology such as “anticipates”, “begins”, “coming”, “continue”, “develop”, “focus”, “indicated”, “inferred”, “initiates”, “intend”, “long-term”, “measured”, “mineral resource”, “next”, “objective”, “opportunities”, “optimization”, “PFS”, “plan”, “preliminary”, “preparation”, “project”, “proposes”, “risk”, “scenario”, “scheduling”, “stage”, “study”, “test”, “will”, “working” and “workstreams”, or variations of such words, and similar such words, expressions or statements that certain actions, events or results can, could, may, should, will (or not) be achieved, occur, provide, result or support in the future, or which, by their nature, refer to future events. In some cases, forward-looking information may be stated in the present tense, such as in respect of current matters that may be continuing, or that may have a future impact or effect. Forward-looking information includes, without limitation, statements regarding the 2024 Preliminary Economic Assessment (or PEA), the contemplated Pre-feasibility Study (or PFS) or other testing or studies (including, without limitation, contemplated workstreams or plans, opportunities, and economic returns or other conclusions or results, implications and implementation thereof); mineral resource estimates; Company objectives; and the future plans or prospects of the Company. Although the Company believes that such statements are reasonable, it can give no assurance that such expectations will prove to be correct, and any forward-looking statements by the Company are not guarantees of future actions, results or performance. Forward-looking statements are based on assumptions, estimates, expectations and opinions, which are considered reasonable and represent best judgment based on available facts, as of the date such statements are made. If such assumptions, estimates, expectations and opinions prove to be incorrect, actual and future results may be materially different than expressed or implied in the forward-looking statements. The assumptions, estimates, expectations and opinions referenced, contained or incorporated by reference in this news release which may prove to be incorrect include those set forth or referenced in this news release, as well as those stated in the Company’s news releases dated July 16, 2024 and August 7, 2024, the technical report for the Project filed on August 27, 2024 (the “PEA Technical Report”), the Company’s Annual Information Form dated April 1, 2024 (the “AIF), Management’s Discussion and Analysis (together with the accompanying financial statements) for the year ended December 31, 2023 and the quarters already ended in 2024 (collectively, the “2023-24 Financial Disclosure”) and the Company’s other applicable public disclosure (collectively, “Company Disclosure”), all available on the Company’s website at www.arizonasonoran.com and under its issuer profile at www.sedarplus.ca. Forward-looking statements are inherently subject to known and unknown risks, uncertainties, contingencies and other factors which may cause the actual results, performance or achievements of ASCU to be materially different from any future results, performance or achievements expressed or implied by the forward-looking statements. Such risks, uncertainties, contingencies and other factors include, among others, the “Risk Factors” in the AIF, and the risks, uncertainties, contingencies and other factors identified in the PEA Technical Report and the 2023-24 Financial Disclosure, as well as market conditions, future prices and the supply of metals; the results of drilling; inability to raise the money necessary to fund necessary or planned expenditures (including to acquire and retain required land and/or mineral title); general business, economic, competitive, political and social uncertainties; results of exploration programs; accidents; delays in obtaining, or failure to receive and maintain, necessary permits and other regulatory approvals. The foregoing list of risks, uncertainties, contingencies and other factors is not exhaustive; readers should consult the more complete discussion of the Company’s business, financial condition and prospects that is provided in the AIF, the 2023-24 Financial Disclosure and other Company Disclosure. Although ASCU has attempted to identify important factors that could cause actual actions, events or results to differ materially from those described in forward-looking statements, there may be other factors that cause actions, events or results to differ from those anticipated, estimated or intended. Forward-looking statements contained herein are made as of the date of this news release (or as otherwise expressly specified) and ASCU disclaims any intention or obligation to update or revise any forward-looking statements, whether as a result of new information, future events or results or otherwise, except as required by applicable securities laws. There can be no assurance that such information will prove to be accurate, as actual results and future events could differ materially from forward-looking statements. Accordingly, readers should not place undue reliance on forward-looking statements. The forward-looking statements referenced or contained in this news release are expressly qualified by these Cautionary Statements as well as the Cautionary Statements in the AIF, the PEA Technical Report, the 2023-24 Financial Disclosure and other Company Disclosure.

Preliminary Economic Assessments

The 2024 Preliminary Economic Assessment (or PEA) referenced in this news release and summarized in the PEA Technical Report is only a conceptual study of the potential viability of the Cactus Copper Project and the economic and technical viability of the Project has not been demonstrated. The PEA is preliminary in nature and provides only an initial, high-level review of the Project’s potential and design options; there is no certainty that the PEA will be realized. For further detail on the Project and the PEA, including applicable technical notes and cautionary statements, please refer to the Company’s news release dated August 7, 2024 and the PEA Technical Report, both available on the Company’s website at www.arizonasonoran.com and under its issuer profile at www.sedarplus.ca.

Mineral Resource Estimates

Until mineral deposits are actually mined and processed, mineral resources must be considered as estimates only. Mineral resource estimates that are not classified as mineral reserves do not have demonstrated economic viability. The estimation of mineral resources is inherently uncertain, involves subjective judgement about many relevant factors and may be materially affected by, among other things, environmental, permitting, legal, title, taxation, socio-political, marketing, or other known and unknown risks, uncertainties, contingencies and other factors described in the foregoing Cautionary Statements on Forward-Looking Statements. The quantity and grade of reported “inferred” mineral resource estimates are uncertain in nature and there has been insufficient exploration to define “inferred” mineral resource estimates as an “indicated” or “measured” mineral resource and it is uncertain if further exploration will result in upgrading “inferred” mineral resource estimates to an “indicated” or “measured” mineral resource category. Inferred mineral resource estimates may not form the basis of feasibility or pre-feasibility studies or economic studies except for preliminary economic assessments. The accuracy of any mineral resource estimate is a function of the quantity and quality of available data, and of the assumptions made and judgments used in engineering and geological interpretation, which may prove to be unreliable and depend, to a certain extent, upon the analysis of drilling results and statistical inferences that may ultimately prove to be inaccurate. It cannot be assumed that all or any part of a “inferred”, “indicated” or “measured” mineral resource estimate will ever be upgraded to a higher category including a mineral reserve. The mineral resource estimates declared by the Company were estimated, categorized and reported using standards and definitions in accordance with the Canadian Institute of Mining, Metallurgy and Petroleum Definition Standards for Mineral Resources and Mineral Reserves (the “CIM Standards”) in accordance with National Instrument 43-101 of the Canadian Securities Administrators (“NI 43-101”), which governs the public disclosure of scientific and technical information concerning mineral projects.

U.S. Readers

The terms “mineral resource”, “measured mineral resource”, “indicated mineral resource” and “inferred mineral resource” as disclosed by the Company are Canadian mining terms defined in the CIM Standards (collectively, the “CIM Definitions”) in accordance with NI 43-101. NI 43-101 establishes standards for all public disclosure that a Canadian issuer makes of scientific and technical information concerning mineral projects. These Canadian standards differ from the requirements of the United States Securities and Exchange Commission (the “SEC”) applicable to United States domestic and certain foreign reporting companies under Subpart 1300 of Regulation S-K (“S-K 1300”). Accordingly, information describing mineral resource estimates for the Cactus Copper Project may not be comparable to similar information publicly reported in accordance with the applicable requirements of the SEC, and so there can be no assurance that any mineral resource estimate for the Project would be the same had the estimates been prepared per the SEC’s reporting and disclosure requirements under applicable United States federal securities laws, and the rules and regulations thereunder, including but not limited to S-K 1300. Further, there is no assurance that any mineral resource or mineral reserve estimate that the Company may report under NI 43-101 would be the same had the Company prepared such estimates under S-K 1300.

For more information

Alison Dwoskin, Director, Investor Relations

647-233-4348

adwoskin@arizonasonoran.com

George Ogilvie, President, CEO and Director

416-723-0458

gogilvie@arizonasonoran.com

Source: Arizona Sonoran Copper Company Inc.

FAQ

When is Arizona Sonoran Copper Company (ASCUF) expected to complete the Pre-Feasibility Study for the Cactus Project?

Arizona Sonoran Copper Company anticipates completing the Pre-Feasibility Study for the Cactus Project in the second half of 2025.

What company has been appointed to lead the Cactus Project Pre-Feasibility Study for Arizona Sonoran Copper (ASCUF)?

M3 Engineering, based in Tucson, has been appointed to lead the Cactus Project Pre-Feasibility Study for Arizona Sonoran Copper Company.

What major change was made to the Parks/Salyer deposit in Arizona Sonoran's (ASCUF) August 2024 PEA?

In the August 2024 Preliminary Economic Assessment, the Parks/Salyer deposit was rescoped from an underground scenario to an open pit mine, comprising the initial years of proposed production.

What are the key workstreams for Arizona Sonoran Copper's (ASCUF) upcoming Pre-Feasibility Study?

Key workstreams include exploration and infill drilling, mine design and scheduling, geotechnical and hydrological drilling, and metallurgical test work.

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