GoGold Announces Results of Los Ricos South Feasibility Study with After Tax NPV of US$355M
GoGold Resources has released its Feasibility Study for the Los Ricos South Project in Mexico, featuring a 2,000 tonnes per day underground mine plan. Key highlights include:
- After-Tax NPV of US$355 million with 28% IRR at base case prices ($26.80/oz silver, $2,330/oz gold)
- 15-year mine life producing 80 million payable silver equivalent ounces
- Initial capital costs of $227 million with $100 million sustaining capital
- Average AISC of $11.19/oz AgEq over first 5 years
- Average annual production of 7.3 million AgEq oz over first 5 years
- Proven and Probable Reserves of 10.2 million tonnes at 276 g/t AgEq
The project features conventional processing with crushing, grinding and cyanide leaching, producing silver-gold doré bars and copper precipitate. The company expects permit approval by March 2025 and is in advanced discussions with lenders for construction financing.
GoGold Resources ha pubblicato il suo Studio di Fattibilità per il Progetto Los Ricos Sud in Messico, che presenta un piano minerario sotterraneo di 2.000 tonnellate al giorno. Tra i punti salienti troviamo:
- NPV post-tasse di 355 milioni di dollari USA con un IRR del 28% a prezzi di base (26,80$/oz d'argento, 2.330$/oz d'oro)
- Vita mineraria di 15 anni con una produzione di 80 milioni di once equivalenti d'argento pagabile
- Costi di capitale iniziali di 227 milioni di dollari con 100 milioni di dollari per il capitale sostenibile
- Costo totale di sostegno medio (AISC) di 11,19$/oz AgEq nei primi 5 anni
- Produzione media annuale di 7,3 milioni di once AgEq nei primi 5 anni
- Risorse dimostrate e probabili di 10,2 milioni di tonnellate a 276 g/t AgEq
Il progetto prevede un processo convenzionale con frantumazione, macinazione e lisciviazione con cianuro, producendo lingotti d'argento-oro e precipitato di rame. L'azienda si aspetta l'approvazione dei permessi entro marzo 2025 ed è in fase avanzata di discussioni con i finanziatori per il finanziamento della costruzione.
GoGold Resources ha publicado su Estudio de Factibilidad para el Proyecto Los Ricos Sur en México, presentando un plan de mina subterránea de 2,000 toneladas por día. Los aspectos más destacados incluyen:
- NPV después de impuestos de 355 millones de dólares estadounidenses con un IRR del 28% a precios base (26.80$/oz de plata, 2,330$/oz de oro)
- Vida útil de la mina de 15 años produciendo 80 millones de onzas equivalentes de plata pagaderas
- Costos de capital iniciales de 227 millones de dólares con 100 millones de dólares en capital de mantenimiento
- AISC medio de 11.19$/oz AgEq durante los primeros 5 años
- Producción media anual de 7.3 millones de oz AgEq durante los primeros 5 años
- Reservas probadas y probables de 10.2 millones de toneladas a 276 g/t AgEq
El proyecto cuenta con un procesamiento convencional que incluye trituración, molienda y lixiviación con cianuro, produciendo lingotes de plata-oro y precipitado de cobre. La empresa espera la aprobación del permiso para marzo de 2025 y está en discusiones avanzadas con prestamistas para el financiamiento de la construcción.
GoGold Resources는 멕시코의 Los Ricos South 프로젝트에 대한 타당성 조사를 발표했습니다. 이 프로젝트는 일일 2,000톤의 지하 채굴 계획을 특징으로 합니다. 주요 내용은 다음과 같습니다:
- 세후 NPV는 3억 5천 5백만 달러로, 기본 가격($26.80/온스 은, $2,330/온스 금)에서 28%의 IRR을 기록합니다.
- 15년의 광산 수명으로 8000만 온스의 지급 가능한 은 동등량을 생산합니다.
- 초기 자본 비용은 2억 2천7백만 달러이며, 유지 자본은 1억 달러입니다.
- 첫 5년 동안 평균 AISC는 11.19$/온스 AgEq입니다.
- 첫 5년 동안 평균 연간 생산량은 730만 AgEq 온스입니다.
- 10.2백만 톤의 입증된 및 추정된 매장량이 276 g/t AgEq입니다.
이 프로젝트는 파쇄, 분쇄 및 시안화물 침출을 포함한 기존 처리를 특징으로 하며, 은-금 도금 바와 구리 침전물을 생산합니다. 회사는 2025년 3월까지 허가 승인을 예상하고 있으며, 건설 자금을 위한 대출자와의 고급 논의 중에 있습니다.
GoGold Resources a publié son étude de faisabilité pour le projet Los Ricos Sud au Mexique, qui présente un plan de mine souterraine de 2 000 tonnes par jour. Les points saillants incluent :
- NPV après impôts de 355 millions de dollars US avec un IRR de 28 % à des prix de base (26,80 $/oz d'argent, 2 330 $/oz d'or)
- Durée de vie de la mine de 15 ans produisant 80 millions d'onces équivalentes d'argent payables
- Coûts d'investissement initiaux de 227 millions de dollars avec 100 millions de dollars pour le capital de maintien
- AISC moyen de 11,19 $/oz AgEq sur les 5 premières années
- Production annuelle moyenne de 7,3 millions d'onces AgEq sur les 5 premières années
- Réserves prouvées et probables de 10,2 millions de tonnes à 276 g/t AgEq
Le projet inclut un traitement conventionnel avec concassage, broyage et lixiviation au cyanure, produisant des lingots dorés d'argent et des précipités de cuivre. L'entreprise s'attend à une approbation des permis d'ici mars 2025 et est en discussions avancées avec des prêteurs pour le financement de la construction.
GoGold Resources hat seine Machbarkeitsstudie für das Los Ricos South-Projekt in Mexiko veröffentlicht, die einen 2.000 Tonnen pro Tag unterirdischen Bergbauplan umfasst. Die wichtigsten Highlights sind:
- Nach-Steuer NPV von 355 Millionen US-Dollar mit 28% IRR zu Basissätzen (26,80 $/oz Silber, 2.330 $/oz Gold)
- 15 Jahre Lebensdauer der Mine, die 80 Millionen zahlbare Silberäquivalent-Unzen produziert
- Anfängliche Investitionskosten von 227 Millionen US-Dollar mit 100 Millionen US-Dollar Erhaltungsinvestitionen
- Durchschnittliche AISC von 11,19 $/oz AgEq über die ersten 5 Jahre
- Durchschnittliche Jahresproduktion von 7,3 Millionen AgEq oz über die ersten 5 Jahre
- Erwiesene und wahrscheinliche Reserven von 10,2 Millionen Tonnen bei 276 g/t AgEq
Das Projekt umfasst eine konventionelle Verarbeitung mit Zerkleinern, Mahlen und Cyanidlaugung, bei der Silber-Gold-Doré-Barren und Kupferpräzipitate erzeugt werden. Das Unternehmen rechnet mit der Genehmigung von Genehmigungen bis März 2025 und befindet sich in fortgeschrittenen Gesprächen mit Kreditgebern über die Finanzierung des Baus.
- Strong After-Tax NPV of US$355M with 28% IRR
- Substantial proven & probable reserves of 90.7M oz AgEq
- High recovery rates: 93% for gold and 86% for silver
- Quick payback period of 2.6 years
- Robust economics even at lower metal prices
- Advanced stage with FEED completed beyond normal feasibility level
- High initial capital requirement of $227M
- Additional $100M needed in sustaining capital over mine life
- Project financing still needs to be secured
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2,000 tonnes per day underground mine plan re-engineered to reduce surface disturbance
Ausenco Engineering Canada ULC ("Ausenco") completed the design and cost estimates for the process plant. The exercise also included a Front-End Engineering & Design ("FEED") component which provided more engineering detail on key vendor supply packages. This component is beyond the normal Feasibility Study level of detail and adds greater technical and engineering data to these specific aspects of the plant design. The FEED component is expected to allow for a quicker transition to the detailed engineering and field execution phases in the future."
Highlights of the FS, with a silver price of
- After-Tax net present value ("NPV") (using a discount rate of
5% ) ofUS with an After-Tax IRR of$355 million 28% (Base Case); - At approximate spot metal silver price of
/oz and gold price of$30 /oz, NPV (using a discount rate of$2,608 5% ) ofUS with an After-Tax IRR of$469 million 34% ; - 15-year mine life producing a total of 80 million payable silver equivalent ounces ("AgEq"), consisting of 41 million silver ounces, 424 thousand gold ounces, and 11 million pounds of copper;
- Initial capital costs of
, including$227 million in contingency costs, over an expected two year build, and sustaining capital costs of$21 million over the life of mine ("LOM");$100 million - Average operating cash costs of
/oz AgEq, and all in sustaining costs ("AISC") of$9.94 /oz AgEq over first 5 years of production, with average AISC of$11.19 /oz AgEq over the underground mine life;$12.32 - Average annual production of 7.3 million AgEq oz over first 5 years;
- Successful conversion of Mineral Resources to Proven and Probable Mineral Reserves totalling 10.2 million tonnes grading 276 g/t AgEq containing 91 million ounces AgEq, including 7.5 million underground tonnes grading 326 g/t AgEq;
- Average underground mining width of 11 metres using bulk mining method of longitudinal sub-level long-hole mining;
"This FS has a very high level of detail, exceeding the normal feasibility study level of detail in the process plant design. Our expectation is that we will receive a positive outcome on our permit application for our underground mine by the end of March 2025. The Company has a strong balance sheet and we are in advanced discussions with prospective lenders for the remaining financing required for construction. With this detailed study and once we have obtained the permit, we should be able to formally make a construction decision and begin building the mine," said Brad Langille, President and CEO. "We have the support of the local community for the project and have begun the process of building our mining and technical services team. Looking beyond the imminent construction, we also see the opportunities for more near mine exploration with a focus on growing more high grade underground resources in Los Ricos South and also look to advance Los Ricos North in 2025."
An NI 43-101 Technical Report will be filed on SEDAR+ within 45 days of this news release containing the full details of the FS.
Table 1 – LRS FS Underground Key Assumptions and Results
Assumption / Result | Unit | Value | Assumption / Result | Unit | Value | |
Total UG Ore Mined | kt | 7,512 | UG Mining Costs | $/t Plant Feed | 44.04 | |
UG Silver Grade1 | g/t | 170 | Operating Cash Cost | $/oz AgEq | 11.22 | |
UG Gold Grade1 | g/t | 1.65 | All in Sustaining Cost | $/oz AgEq | 12.32 | |
UG AgEq Grade1 | g/t | 326 | Mine Life | Yrs | 12 | |
Silver Recovery | % | 86 | Average Mining Width | m | 11 | |
Gold Recovery | % | 93 |
1. | Grades shown are LOM average process plant feed grades including underground external dilution of approximately | |
2. | The underground mining method is longitudinal sub-level long-hole mining. | |
3. | AgEq includes gold converted at a ratio of 86.05:1 and copper % converted at a ratio of 103.4:1. |
Table 2 – LRS FS Life of Mine Key Assumptions and Results
Assumption / Result | Unit | Value | Assumption / Result | Unit | Value | |
Total Plant Feed Mined | kt | 10,233 | Net Revenue | $M | 2,099 | |
Average process rate | t/day | 2,000 | Initial Capital Costs | $M | 227 | |
Silver Recovery | % | 86 | Sustaining Capital Costs | $M | 100 | |
Gold Recovery | % | 93 | Mining Costs | $/t Plant Feed | 42.92 | |
Silver Price | $/oz | 26.80 | Processing Costs | $/t Plant Feed | 39.63 | |
Gold Price | $/oz | 2,330 | General and Admin Costs | $/t Plant Feed | 6.88 | |
Copper Price | $/lb | 4.00 | Operating Cash Cost | $/oz AgEq | 11.59 | |
Payable Silver Metal | Moz | 41.1 | All in Sustaining Cost | $/oz AgEq | 12.78 | |
Payable Gold Metal | koz | 423.6 | After-Tax NPV ( | $M | 355 | |
Payable Copper | Mlb | 11.2 | Pre-Tax NPV ( | $M | 553 | |
Payable AgEq1 | Moz | 79.9 | After-Tax IRR | % | 28.0 | |
Mine Life | Yrs | 15 | Pre-Tax IRR | % | 38.6 | |
After-Tax Payback Period | Yrs | 2.6 |
Figure 1 above highlights the excellent post-tax cash flows associated with the LRS Project. The economics of the Project have been evaluated based on the base case scenario
The Project mine plan is primarily underground, with a 12 year underground mine life engineered, followed by an open pit mine which begins in the 10th year.
Table 3 – LRS FS Gold and Silver Price Sensitivities
Sensitivity | Base | ||||||
Silver Price ($/oz) | 20 | 22 | 24 | 26.80 | 30 | 33 | 36 |
Gold Price ($/oz) | 1,739 | 1,913 | 2,087 | 2,330 | 2,608 | 2,869 | 3,130 |
After-Tax NPV ( | 110 | 184 | 255 | 355 | 469 | 575 | 681 |
After-Tax IRR (%) | 13.6 | 18.3 | 22.5 | 28.0 | 33.7 | 38.8 | 43.7 |
After-Tax Payback (years) | 4.7 | 3.8 | 3.2 | 2.6 | 2.0 | 1.8 | 1.7 |
Table 4 – LRS FS Operating Cost and Capital Cost Sensitivities
Sensitivity | -20 % | -10 % | Base | 10 % | 20 % |
Operating Costs – NPV ($M) | 440 | 399 | 355 | 317 | 275 |
Operating Costs – IRR (%) | 32.6 | 30.6 | 28.0 | 26.3 | 24.1 |
Capital Costs – NPV ($M) | 394 | 373 | 355 | 331 | 310 |
Capital Costs – IRR (%) | 35.1 | 30.9 | 28.0 | 24.5 | 22.0 |
FS Summary
The LRS Project has been envisioned as an underground mining operation for the first ten years, with contract underground mining supplying a 2,000 tonne per day process plant.
The FS was prepared by independent consultants P&E Mining Consultants Inc ("P&E") acting as lead consultant and completing the MRE, Mineral Reserves, and mining. Additional contributing consultants and their roles were as follows:
- Ausenco – Process plant & infrastructure
- SGS Canada Inc.'s
Lakefield office – Metallurgical - WSP – Underground and Open Pit Geotechnical
- CIMA – Environmental
- Paterson & Cooke –
Paste backfill - BQE / D.E.N.M. Engineering – SART design & costing
- BCG – Tailings geotechnical
Table 5 – LOM Capital Cost Estimate
Type | Initial ($k) | Sustaining ($k) | Total ($k) |
Process Plant direct costs | 83,544 | 10,223 | 93,767 |
Underground development | 51,054 | 62,763 | 113,817 |
Open pit stripping | 17,661 | 17,661 | |
Infrastructure | 38,558 | 38,558 | |
EPCM | 17,969 | 17,969 | |
Project indirect costs | 14,576 | 14,576 | |
Total | 205,701 | 90,647 | 296,348 |
Contingency ( | 20,987 | 9,065 | 30,052 |
Grand Total | 226,688 | 99,712 | 326,400 |
Table 6 – Operating Costs (Average LOM)
Operating Costs (Average LOM) | $/tonne Plant Feed | $/tonne |
Open Pit Mining | 17.72 | 2.64 |
Underground Mining1 | 49.92 | |
Total LOM Mining2 | 42.92 | |
Processing ($/t processed) | 39.63 | |
General and Admin ($/t processed) | 6.88 | |
Total ($/t processed) | 89.43 |
1. | Bulk underground long hole mining. |
2. | Average LOM mining cost of both open pit and underground. |
Mining
Contract underground mining will be completed using the longitudinal sub-level long-hole mining method and cemented paste back filling of the mined-out stopes. Approximately
Process Plant Design
The process plant is comprised of conventional crushing and grinding followed by cyanide tank leaching. Back-end filtration is required to maximize water recycling (dry stack tailings) as well as a SART (sulfidation, acidification re-neutralization and thickening) circuit to recover cyanide back to the process and to produce a saleable copper sulfide product. The process plant will produce saleable silver-gold doré bars and a copper precipitate.
Metallurgy
In support of the feasibility study on the Los Ricos South deposits, an extensive metallurgical test program was completed at SGS Lakefield on representative drill core from the deposit. The program was designed to test and validate the key components of the process to confirm process plant performance including:
- Crushing and grinding
- Thickening and filtration
- Cyanide leaching and reagent consumptions
- SART performance
- Merrill Crowe (zinc precipitation)
- Dry-stack tailings detoxification and dewatering (maximizing water recovery)
Based on the extensive program, and life of mine mill simulation, the process plant will use a conventional whole ore leaching process and simple flow sheet to produce silver-gold doré bars and a copper precipitate. The cyanide leaching process recoveries range from 92 to
Dewatered and detoxified tailings were tested at
Infrastructure
The Company has an agreement in place with the Comision Federal de Electricidad ("CFE"), which has secured an adequate power supply for LRS. Electricity for the Project is sourced from the nearby
The Company has also secured the rights to the land where the process plant will be located. Agreements were entered into with multiple farmers and stakeholders providing compensation for the usage of the required land. Agreements are also in place with the local
Mineral Reserves and Mineral Resource Estimate
The basis for the FS is an inaugural Proven and Probable Mineral Reserve estimate totalling 10.2 million tonnes grading 275.7 g/t AgEq (145.4 g/t Ag, 1.39 g/t Au, and
Table 7: Los Ricos South Mineral Reserve(1-8)
Classification | Tonnage | Average Grade | Contained Metal | ||||||
Ag | Au | Cu | AgEq | Ag | Au | Cu | AgEq | ||
(kt) | (g/t) | (g/t) | ( %) | (g/t) | (koz) | (koz) | (Mlb) | (koz) | |
Underground | |||||||||
Proven | 3,902 | 187.1 | 1.61 | 0.09 | 334.3 | 23,472 | 202 | 7.5 | 41,939 |
Probable | 3,611 | 152.0 | 1.70 | 0.18 | 317.8 | 17,647 | 197 | 14.6 | 36,895 |
Subtotal Underground | 7,512 | 170.2 | 1.65 | 0.13 | 326.4 | 41,119 | 399 | 22.1 | 78,834 |
Open Pit | |||||||||
Proven | 580 | 94.8 | 0.72 | 0.02 | 159.0 | 1,768 | 13 | 0.3 | 2,965 |
Probable | 2,140 | 72.1 | 0.64 | 0.03 | 129.7 | 4,961 | 44 | 1.4 | 8,924 |
Subtotal Open Pit | 2,720 | 76.9 | 0.66 | 0.02 | 135.9 | 6,728 | 57 | 1.7 | 11,889 |
Total | |||||||||
Proven | 4,482 | 175.2 | 1.49 | 0.08 | 311.6 | 25,240 | 215 | 7.7 | 44,904 |
Probable | 5,751 | 122.3 | 1.31 | 0.13 | 247.8 | 22,607 | 241 | 16.1 | 45,819 |
Total Proven & Probable | 10,233 | 145.4 | 1.39 | 0.10 | 275.7 | 47,847 | 457 | 23.8 | 90,723 |
1) | Mineral Reserves are based on Measured and Indicated Mineral Resource Classifications only. |
2) | Mineral Reserves are reported using the 2014 CIM Definition Standards and 2019 Best Practices Guidelines and have an effective date of January 14, 2025. |
3) | Mineral Reserves are defined within mine plans and incorporate mining dilution and ore losses. |
4) | Open Pit Mineral Reserves are based on metal prices of |
5) | An Open Pit cut-off grade of 46.4 g/t AgEq is estimated to differentiate ore from waste and is based on cost assumptions of |
6) | Underground Mineral Reserves are based on metal prices of |
7) | An Underground marginal cut-off grade of 150 g/t AgEq is estimated to differentiate ore from waste, and is based on cost assumptions of |
8) | Totals may not sum due to rounding. |
Table 8: Los Ricos South Mineral Resource Estimate – Pit Constrained and Out-of-Pit(1-9)
Mining | Category | Tonnes | Average Grade | Contained Metal | ||||||||
Ag | Au | Cu | AuEq | AgEq | Ag | Au | Cu | AuEq | AgEq | |||
(M) | (g/t) | (g/t) | ( %) | (g/t) | (g/t) | (koz) | (koz) | (Mlb) | (koz) | (koz) | ||
Pit | Measured | 2.9 | 150 | 1.13 | 0.03 | 2.96 | 250 | 14,065 | 106 | 1.7 | 278 | 23,446 |
Indicated | 2.0 | 107 | 0.74 | 0.03 | 2.07 | 174 | 6,747 | 47 | 1.4 | 130 | 10,974 | |
M&I | 4.9 | 133 | 0.97 | 0.03 | 2.60 | 219 | 20,812 | 153 | 3.1 | 408 | 34,420 | |
Inferred | 0.7 | 108 | 0.66 | 0.03 | 2.00 | 168 | 2,552 | 16 | 0.5 | 47 | 3,979 | |
Pit - Cerro C6 | Inferred | 0.6 | 43 | 0.90 | 0.01 | 1.43 | 121 | 787 | 17 | 0.1 | 26 | 2,243 |
Indicated | 0.3 | 34 | 0.87 | 0.01 | 1.28 | 109 | 377 | 10 | 0.1 | 14 | 1,217 | |
Out-of-Pit7,8 | Measured | 2.4 | 218 | 2.00 | 0.14 | 4.79 | 405 | 17,025 | 156 | 7.5 | 373 | 31,567 |
Indicated | 3.1 | 187 | 2.25 | 0.26 | 4.80 | 407 | 18,525 | 223 | 17.4 | 476 | 40,331 | |
M&I | 5.5 | 201 | 2.14 | 0.20 | 4.79 | 406 | 35,550 | 379 | 24.9 | 849 | 71,898 | |
Inferred | 1.1 | 127 | 1.48 | 0.51 | 3.61 | 306 | 4,544 | 53 | 12.4 | 130 | 10,995 | |
Total | Measured | 5.3 | 181 | 1.53 | 0.08 | 3.79 | 320 | 31,090 | 262 | 9.2 | 651 | 55,013 |
Indicated | 5.6 | 144 | 1.59 | 0.15 | 3.50 | 296 | 26,059 | 287 | 18.9 | 632 | 53,549 | |
M&I | 11.0 | 162 | 1.56 | 0.12 | 3.64 | 308 | 57,150 | 549 | 28.1 | 1,284 | 108,562 | |
Inferred | 2.2 | 106 | 1.11 | 0.27 | 2.70 | 229 | 7,473 | 79 | 13.0 | 191 | 16,191 |
1) | Mineral Resources, which are not Mineral Reserves, do not have demonstrated economic viability. The estimate of Mineral Resources may be materially affected by environmental, permitting, legal, title, taxation, socio-political, marketing, or other relevant issues. |
2) | The Inferred Mineral Resource in this estimate has a lower level of confidence than that applied to an Indicated Mineral Resource and must not be converted to a Mineral Reserve. It is reasonably expected that the majority of the Inferred Mineral Resource could be upgraded to an Indicated Mineral Resource with continued exploration. |
3) | The Mineral Resources were estimated in accordance with the Canadian Institute of Mining, Metallurgy and Petroleum (CIM), CIM Standards on Mineral Resources and Reserves, Definitions and Guidelines (2014) prepared by the CIM Standing Committee on Reserve Definitions and adopted by the CIM Council and CIM Best Practices Guidelines (2019) and have an effective date of January 14, 2025. |
4) | Historically mined areas were depleted from the Mineral Resource model. |
5) | The pit-constrained AgEq cut-off grade of 40 g/t was derived from |
6) | The Cerro Colorado Mineral Resource was constrained to open pit mining methods only; Out-of-pit Mineral Resources are restricted to the Eagle and Abra mineralized veins, which exhibit historical continuity and reasonable potential for extraction by cut and fill and longhole underground mining methods. |
7) | The out-of-pit AgEq cut-off grade of 130 g/t Ag was derived from |
8) | AgEq and AuEq were calculated at an Ag/Au ratio of 86:1 for pit-constrained and out-of-pit Mineral Resources. |
9) | Totals may not sum due to rounding. |
Mineral Resource Estimate Methodology
A total of 554 drill holes totalling 90,095 metres were used in the MRE.
P&E collaborated with GoGold personnel to develop the mineralization models, estimates, and reporting criteria for the Mineral Resources at Los Ricos. Mineralization models were initially developed by GoGold and were reviewed and modified by P&E. A total of eight individual mineralized domains have been identified through drilling, surface and historical underground sampling. The modeled mineralization domains are constrained by individual wireframes based on a 0.30 g/t AuEq cut-off for low-grade domains or 3.0 g/t AuEq for high-grade domains.
Mineralization wireframes were used as hard boundaries for the purposes of grade estimation.
A three-dimensional sub-blocked model, with 3m x 3m x 3m parent and 1m x 1m x 1m sub-blocks, was used for the Mineral Resource Estimate. The block model consists of estimated Au, Ag and Cu grades, estimated bulk density, and classification criteria. Au and Ag equivalent block grades were subsequently calculated from the estimated Au, Ag and Cu grades.
Sample assays were composited to a 1 m standard length. Au and Ag grades were estimated using Inverse Distance Cubed weighting of between 1 and 12 composites, with a maximum of 2 composites per drill hole. Composites were capped prior to estimation by mineralization domain. Composite samples were selected within an anisotropic search ellipse oriented down the plunge of identified high grade trends.
Individual bulk density values were applied to mineralized domains separately and were statistically determined using 4,515 measurements taken from drill holes.
Classification criteria were determined from observed grade and geological continuity as well as variography. Measured Mineral Resources are informed by three or more drill holes within 30 m; Indicated Mineral Resources are informed by two or more drill holes within 60 m.
P&E is of the opinion that the Mineral Resource Estimate is suitable for public reporting and is a reasonable representation of the mineralization and metal content of the Los Ricos Deposits.
Table 9: Los Ricos South & North Mineral Resources(1-4)
Deposit | Tonnes | Average Grade | Contained Metal | ||||||||||||
Ag | Au | Cu | Pb | Zn | AuEq | AgEq | Ag | Au | Cu | Pb | Zn | AuEq | AgEq | ||
(M) | (g/t) | (g/t) | ( %) | ( %) | ( %) | (g/t) | (g/t) | (koz) | (koz) | (Mlb) | (Mlb) | (Mlb) | (koz) | (koz) | |
LRS Measured1 | 5.3 | 181 | 1.53 | 0.08 | - | - | 3.79 | 320 | 31,090 | 262 | 9 | - | - | 651 | 55,013 |
Indicated: | |||||||||||||||
LRN (Oxide)2 | 14.5 | 100 | 0.37 | - | - | - | 1.71 | 127 | 46,500 | 171 | - | - | - | 801 | 59,100 |
LRS (Oxide)1 | 5.6 | 144 | 1.59 | 0.15 | - | - | 3.5 | 296 | 26,059 | 287 | 19 | - | - | 632 | 53,549 |
LRN (Sulfide)2 | 7.8 | 28 | 0.06 | 0.11 | 0.88 | 1.33 | 1.55 | 114 | 7,011 | 15 | 19 | 151 | 229 | 389 | 28,708 |
Total Indicated | 27.9 | 2.03 | 158 | 79,570 | 473 | 38 | 151 | 229 | 1,822 | 141,357 | |||||
Measured & | 33.2 | 2.32 | 184 | 110,660 | 735 | 47 | 151 | 229 | 2,473 | 196,370 | |||||
Inferred: | |||||||||||||||
LRN (Oxide)2 | 15 | 91 | 0.28 | - | - | - | 1.52 | 112 | 44,131 | 136 | - | - | - | 734 | 54,191 |
LRS (Oxide)1 | 2.2 | 106 | 1.11 | 0.27 | - | - | 2.7 | 229 | 7,473 | 79 | 13.0 | - | - | 191 | 16,191 |
LRN (Sulfide)2 | 5.5 | 28 | 0.06 | 0.12 | 0.74 | 1.2 | 1.46 | 108 | 4,888 | 11 | 15 | 90 | 146 | 258 | 19,007 |
Total Inferred | 22.7 | 1.62 | 122 | 56,492 | 226 | 28 | 90 | 146 | 1,183 | 89,389 |
1. | See Table 8 notes for assumptions |
2. | See GoGold press release #18-2023 dated June 30, 2023, or the technical report filed on that date on SEDAR+ for full details regarding the Los Ricos North ("LRN") Mineral Resource. |
3. | Totals may not agree due to rounding. |
Qualified Persons
The FS is prepared by consultants who are independent of GoGold, each of whom are Qualified Persons ("QP") as defined by NI 43-101 Standards of Disclosure for Mineral. Each of the QPs have reviewed and confirmed that this news release fairly and accurately reflects, in the form and context in which it appears, the information contained in the respective sections of the FS for which they are responsible. The affiliation and areas of responsibility for each QP involved are as follows:
P&E QPs
Eugene Puritch, P.Eng., FEC, CET – Mineral resources
Andrew Bradfield, P. Eng. – Study leader and open pit mine design, scheduling and costs
Greg Robinson, P. Eng. – Underground mine design, scheduling and costs
Grant Feasby, P. Eng. – Environmental
Fred H. Brown, P. Eng. – Mineral resources
Ausenco QPs
Robert Raponi, P. Eng. – Metallurgy and mineral processing, recovery methods
Scott Elfen, PE – Dry stack tailings facility design
Jonathan Cooper, P. Eng. – Surface water management design
WSP QP
James Smith, P. Eng. – Open pit and underground geotechnical
D.E.N.M. Engineering QP
David Salari, P. Eng. – SART design & costing
Robert Harris, P.Eng. and David Duncan, P.Geo. are the non-independent GoGold QPs who have reviewed and verified the technical content of this news release.
VRIFY Slide Deck and 3D Presentation
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The VRIFY 3D Slide Deck for GoGold can be viewed at: https://vrify.com/companies/gogold-resources-inc and on the Company's website at: www.gogoldresources.com.
Los Ricos District Exploration Projects
The Company's two exploration projects at its Los Ricos Property are in
The Los Ricos North Project was launched in March 2020 and an initial Mineral Resource Estimate was announced on December 7, 2021, which disclosed an Indicated Mineral Resource Estimate of 87.8 million ounces AgEq grading 122 g/t AgEq contained in 22.3 million tonnes, and an Inferred Mineral Resource Estimate of 73.2 million ounces AgEq grading 111 g/t AgEq contained in 20.5 million tonnes. An initial PEA on the Project was announced on May 17, 2023, indicating an NPV
About GoGold Resources
GoGold Resources (TSX: GGD) is a Canadian-based silver and gold producer focused on operating, developing, exploring and acquiring high quality projects in Mexico. The Company operates the Parral Tailings Project in the
CAUTIONARY STATEMENT:
The securities described herein have not been, and will not be, registered under the United States Securities Act of 1933, as amended (the "
This news release may contain "forward-looking information" as defined in applicable Canadian securities legislation. All statements other than statements of historical fact, included in this release, including, without limitation, statements regarding the Los Ricos South and North projects, and future plans and objectives of GoGold, including the NPV, IRR, initial and sustaining capital costs, operating costs, and LOM production of Los Ricos South, constitute forward looking information that involve various risks and uncertainties. Forward-looking information is based on a number of factors and assumptions which have been used to develop such information but which may prove to be incorrect, including, but not limited to, assumptions in connection with the continuance of GoGold and its subsidiaries as a going concern, general economic and market conditions, mineral prices, the accuracy of Mineral Resource and Mineral Reserve Estimates, and the performance of the Parral Project. There can be no assurance that such information will prove to be accurate and actual results and future events could differ materially from those anticipated in such forward-looking information.
Important factors that could cause actual results to differ materially from GoGold's expectations include exploration and development risks associated with GoGold's projects, the failure to establish estimated Mineral Resources or Mineral Reserves, volatility of commodity prices, variations of recovery rates, and global economic conditions. For additional information with respect to risk factors applicable to GoGold, reference should be made to GoGold's continuous disclosure materials filed from time to time with securities regulators, including, but not limited to, GoGold's Annual Information Form. The forward-looking information contained in this release is made as of the date of this release.
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SOURCE GoGold Resources Inc.
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