STOCK TITAN
  1. Home
  2. News
  3. MRRDF
  4. Meridian Drills Copper Dominated Layers of Ore Grading 28.6m @ 3.5 g/t AuEq (2.6% CuEq) at Cabacal

Meridian Drills Copper Dominated Layers of Ore Grading 28.6m @ 3.5 g/t AuEq (2.6% CuEq) at Cabacal

Rhea-AI Impact
(Neutral)
Rhea-AI Sentiment
(Positive)
Tags
Rhea-AI Summary

Meridian Mining (OTCQX:MRRDF) has reported significant drilling results from its Cabaçal Au-Cu-Ag VMS project, highlighted by hole CD-702 intersecting 28.6m @ 3.5g/t AuEq (2.6% CuEq) from 127.6m depth, including multiple high-grade copper zones with peak assays of 10.6% Cu and 11.0% Cu.

The company is nearing completion of its Definitive Feasibility Study (DFS) infill drilling program, with results expected to improve both grade and density modeling. Additionally, Meridian has been granted two new exploration licenses totaling 14,933 Ha, including the Alvorada copper prospect which shows the belt's strongest historical copper-in-stream geochemical value of 164ppm Cu.

The company continues to advance its regional exploration program across multiple prospects including Cigarra, Santa Fé, and Sucuri South, positioning Cabaçal to emerge as a premier gold-copper VMS belt in South America.

Meridian Mining (OTCQX:MRRDF) ha comunicato risultati significativi di perforazione nel suo progetto Cabaçal Au-Cu-Ag VMS, con il foro CD-702 che ha intercettato 28,6 m a 3,5 g/t AuEq (2,6% CuEq) a partire da 127,6 m di profondità, includendo diverse zone di rame ad alta qualità con valori massimi di 10,6% Cu e 11,0% Cu.

L'azienda sta per completare il programma di perforazione di infill per lo Studio di Fattibilità Definitivo (DFS), con risultati attesi che miglioreranno sia la modellazione della qualità che della densità. Inoltre, Meridian ha ottenuto due nuove licenze di esplorazione per un totale di 14.933 ettari, inclusa la prospettiva di rame Alvorada, che presenta il valore geochimico storico più alto di rame nel corso d'acqua della cintura con 164 ppm Cu.

L'azienda continua a sviluppare il suo programma di esplorazione regionale su più prospettive, tra cui Cigarra, Santa Fé e Sucuri South, posizionando Cabaçal come una delle principali cinture VMS aurifere e cuprifere in Sud America.

Meridian Mining (OTCQX:MRRDF) ha informado resultados significativos de perforación en su proyecto Cabaçal Au-Cu-Ag VMS, destacando el pozo CD-702 que intersectó 28,6 m a 3,5 g/t AuEq (2,6% CuEq) desde una profundidad de 127,6 m, incluyendo múltiples zonas de cobre de alta ley con ensayos máximos de 10,6% Cu y 11,0% Cu.

La compañía está cerca de completar su programa de perforación de relleno para el Estudio de Factibilidad Definitivo (DFS), con resultados que se esperan mejoren tanto la ley como la modelación de densidad. Además, Meridian ha obtenido dos nuevas licencias de exploración que suman 14.933 hectáreas, incluyendo el prospecto de cobre Alvorada, que muestra el valor geoquímico histórico más alto de cobre en corriente de la faja con 164 ppm Cu.

La empresa continúa avanzando en su programa de exploración regional en múltiples prospectos, incluyendo Cigarra, Santa Fé y Sucuri South, posicionando a Cabaçal para emerger como una de las principales fajas VMS de oro y cobre en Sudamérica.

Meridian Mining (OTCQX:MRRDF)는 Cabaçal Au-Cu-Ag VMS 프로젝트에서 중요한 시추 결과를 보고했으며, CD-702 시추공이 127.6m 깊이에서 28.6m 구간에 3.5g/t AuEq (2.6% CuEq)를 교차했으며, 최고 구리 함량이 10.6% 및 11.0%인 여러 고품위 구리 구간을 포함하고 있습니다.

회사는 확정 타당성 조사(DFS) 보강 시추 프로그램을 거의 완료했으며, 결과는 등급과 밀도 모델링 모두를 개선할 것으로 기대됩니다. 또한 Meridian은 총 14,933 헥타르에 달하는 두 개의 신규 탐사 허가를 획득했으며, 여기에는 벨트 내에서 가장 높은 역사적 하천 구리 함량 지오화학 값인 164ppm Cu를 보이는 Alvorada 구리 전망지가 포함되어 있습니다.

회사는 Cigarra, Santa Fé, Sucuri South 등 여러 전망지에서 지역 탐사 프로그램을 계속 진행하며, Cabaçal이 남미에서 선도적인 금-구리 VMS 벨트로 부상할 수 있도록 하고 있습니다.

Meridian Mining (OTCQX:MRRDF) a annoncé des résultats de forage significatifs sur son projet Cabaçal Au-Cu-Ag VMS, avec le trou CD-702 interceptant 28,6 m à 3,5 g/t AuEq (2,6% CuEq) à partir de 127,6 m de profondeur, incluant plusieurs zones de cuivre à haute teneur avec des analyses maximales de 10,6% Cu et 11,0% Cu.

La société est sur le point de terminer son programme de forage de comblement dans le cadre de l'étude de faisabilité définitive (DFS), avec des résultats attendus pour améliorer à la fois la modélisation de la teneur et de la densité. De plus, Meridian a obtenu deux nouvelles licences d'exploration totalisant 14 933 hectares, incluant le prospect cuivre Alvorada, qui présente la valeur géochimique historique la plus élevée en cuivre dans les cours d'eau de la ceinture avec 164 ppm Cu.

La société poursuit son programme d'exploration régionale sur plusieurs prospects, notamment Cigarra, Santa Fé et Sucuri South, positionnant Cabaçal pour émerger comme une ceinture VMS aurifère-cuivrée de premier plan en Amérique du Sud.

Meridian Mining (OTCQX:MRRDF) hat bedeutende Bohrergebnisse von seinem Cabaçal Au-Cu-Ag VMS-Projekt gemeldet, wobei Bohrloch CD-702 28,6 m mit 3,5 g/t AuEq (2,6% CuEq) ab einer Tiefe von 127,6 m durchteufte, einschließlich mehrerer hochgradiger Kupferzonen mit Spitzenwerten von 10,6% Cu und 11,0% Cu.

Das Unternehmen steht kurz vor dem Abschluss seines Definitiven Machbarkeitsstudien-(DFS)-Infill-Bohrprogramms, wobei Ergebnisse erwartet werden, die sowohl die Gehalts- als auch die Dichtemodellierung verbessern. Zusätzlich wurden Meridian zwei neue Explorationslizenzen mit insgesamt 14.933 Hektar gewährt, darunter das Kupferprospekt Alvorada, das den höchsten historischen Kupfergehalt in Flussproben der Lagerstätte mit 164 ppm Cu aufweist.

Das Unternehmen treibt sein regionales Explorationsprogramm an mehreren Prospekten, darunter Cigarra, Santa Fé und Sucuri South, weiter voran und positioniert Cabaçal als eine führende Gold-Kupfer-VMS-Lagerstätte in Südamerika.

Positive
  • Strong drill results with CD-702 showing 28.6m @ 3.5g/t AuEq (2.6% CuEq)
  • Multiple high-grade copper zones discovered with peaks of 10.6% Cu and 11.0% Cu
  • Two new exploration licenses granted adding 14,933 Ha to exploration area
  • Higher density values than historical dataset indicating potential for increased tonnage
  • DFS infill drilling program nearing completion
Negative
  • Some historical mining voids encountered in high-grade zones
  • Initial Santa Fé drill results have not yet intersected economic grades
  • Limited historical density data available for copper-rich zones

Highlights:

  • Meridian drills more multiple stacked layers of shallow high-grade Au-Cu-Ag ore at Cabaçal;

— CD-702: 28.6m @ 3.5g/t AuEq (2.6% CuEq) from 127.6m; including:

  • 3.9m @ 6.1g/t AuEq (4.5% CuEq) from 136.7m;

  • 2.8m @ 9.4g/t AuEq (6.9% CuEq) from 143.8;

  • 1.8m @ 5.7g/t AuEq (4.3% CuEq) from 149.1m;

  • 2.8m @ 9.0g/t AuEq (6.7% CuEq) from 155.9m;

  • Multiple zones of high-grade copper with peak grades assaying 10.6% Cu and 11.0% Cu;

— CD-693: 14.3m @ 2.9g/t AuEq (2.1% CuEq) from 77.3m; including:

  • 2.3m @ 9.4g/t AuEq (7.0% CuEq) from 86.5m;

— CD-678: 19.6m @ 2.0g/t AuEq (1.5% CuEq) from 67.4m;

  • Drill results continue to be consolidated for the final stage of grade and density modelling for Cabaçal’s DFS;

  • Exploration results indicate a potentially northern structural repeat of Santa Helena § Exploration programs continue to advance with two new exploration licences granted;

— Including the permit for Cabaçal’s copper prospect “Alvorada” now open for exploration.

London, United Kingdom--(Newsfile Corp. - July 9, 2025) - Meridian Mining UK S (TSX: MNO) (FSE: 2MM) (OTCQX: MRRDF) ("Meridian" or the "Company") is pleased to report the delineation of multiple stacked layers of Au-Cu-Ag ore, drilled at its advanced Cabaçal Au-Cu-Ag VMS project ("Cabaçal"). Results included CD-702's 28.6m @ 3.5g/t AuEq (2.6% CuEq) from 127.6m, in the more sparsely drilled southeastern sector of the Cabaçal PFS1 open-pit. Stronger than expected zones of copper ore have been encountered here that are expected to improve local grade continuity. Today's results provide further data to improve both grade and density modelling, as Cabaçal DFS's infill drilling program nears its final stages. Drilling continues and more results are pending.

The Company has been granted two exploration licences (866.261/2021 and 866.753/2022). This opens up the Cabaçal belt's untested historical copper anomaly Alvorada2 to its first modern exploration program.

Mr. Gilbert Clark, CEO, comments: "Our infill program continues to delineate southeasterly projections of strong copper and gold ore within the PFS's open-pit model. These results will locally improve the ore grades but also the density which is particularly important for modelling the more copper-rich intersections, such as CD-702's 28.6m @ 3.5g/t AuEq (2.6% CuEq) from 127.6m (1.0g/t Au, 1.9% Cu & 9.7g/t Ag). This interval returned 26 samples grading over 1.0% Cu, up to a peak of 11.0% Cu, in an area with limited historical density data. Effectively, higher density means more tonnes and more metal locally. The Company is entering into a new phase where Cabaçal's DFS drill program nears completion, and Santa Helena's resource drill program continues. While the expanded portfolio of new prospects like Cigarra, Santa Fé, Sucuri South, and the recently granted Alvorada, will be tested as part of our expanding regional exploration programs. Across all disciplines, we are focussing our efforts to realize the potential of Cabaçal to emerge as the premier gold-copper VMS belt in South America."

Cabaçal Drilling Update

The ongoing drill program at Cabaçal has returned further strong intersections as the DFS infill drilling program nears its final stages ("Figure 1"; "Table 1"). Most holes are targeting the first 5-year production area, whilst some peripheral holes were drilled in the southwestern sector of the mine area to close drill spacing in some hanging wall mineralization positions.

Cannot view this image? Visit: https://images.newsfilecorp.com/files/7354/258230_3580f8f3742ec947_002.jpg

Figure 1: Cabaçal plan view with results reported today.

To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/7354/258230_3580f8f3742ec947_002full.jpg

Drilling is providing additional constraints on grade distribution but also on deposit density. The historical database has 1798 assay interval records with over 1.0% Cu, to a peak of 21.8% Cu, of which <10% have density readings. This lack of density data can contribute to an under-call in tonnes and Au-Cu metal contents. Copper dominant intersections were not a focus of historical mining, leaving wide copper mineralization intervals available to the planned Cabaçal open pit development.

CD-702 targeted the southern sector of the CCZ, in a more sparsely drilled area. The intersection provides a good example of the copper-dominant mineralization which although intersected by a mining void from 146.6 - 149.1m, was left extensively intact due to the past underground mining focus on gold. The hole intersected 28.6m @ 3.5g/t AuEq (2.6% CuEq) (1.0g/t Au, 1.9% Cu & 9.7g/t Ag) from 127.6m, with multiple high-grade sub-zones:

— CD-702: 28.6m @ 3.5g/t AuEq (2.6% CuEq) from 127.6m; including:

  • 3.9m @ 6.1g/t AuEq (4.5% CuEq) from 136.7m;

  • 2.8m @ 9.4g/t AuEq (6.9% CuEq) from 143.8;

  • 1.8m @ 5.7g/t AuEq (4.3% CuEq) from 149.1m; and

  • 2.8m @ 9.0g/t AuEq (6.7% CuEq) from 155.9m.

Over 26 samples in the composite contain >1.0% Cu, with peak grades in samples CBDS105591 (10.6% Cu) and CBDS105594 (11.0% Cu). The peak density value of 3.257 is already higher than the highest of the values in the historical dataset, highlighting the value in augmenting this dataset. Individual sub-zones can reach composited densities of 3.05, higher than the modelled density and locally contributing to a positive refinement of the DFS block model.

Highlights from additional Central Copper Zone holes include:

— CD-694: 20.8m @ 1.9g/t AuEq (1.4% CuEq) from 132.0m; including:

  • 4.1m @ 7.7g/t AuEq (5.7% CuEq) from 148.8m;

— CD-695: 38.9m @ 0.9g/t AuEq (0.7% CuEq) from 64.4m; including:

  • 13.3m @ 1.8g/t AuEq (1.4% CuEq) from 67.0m; including:

    • 0.7m @ 15.8g/t AuEq (11.8% CuEq) from 67.0m; and

— CD-678: 33.6m @ 1.4g/t AuEq (1.0% CuEq) from 57.0m; including:

  • 19.6m @ 2.0g/t AuEq (1.5% CuEq) from 67.4m.

Results were reported for two holes targeting the down-dip region of Eastern Copper Zone hole CD-654, which returned 9.9m @ 14.8g/t AuEq (11.0% CuEq) from 29.3m3. Results included:

— CD-648: 21.0m @ 2.2g/t AuEq (1.6% CuEq) from 68.6m; including:

  • 12.5m @ 3.1g/t AuEq (2.3% CuEq) from 77.0m; and

— CD-693: 32.5m @ 1.7g/t AuEq (1.2% CuEq) from 64.2m; including

  • 14.3m @ 2.9g/t AuEq (2.1% CuEq) from 77.3m; including

    • 2.3m @ 9.4g/t AuEq (7.0% CuEq) from 86.5m.

Southern Copper Zone hole CD-679 returned:

— CD-679: 48.2m @ 0.8g/t AuEq from 48.0m; including:

  • 3.4m @ 2.1g/t AuEq (1.6% CuEq) from 49.0m and

  • 2.7m @ 4.5g/t AuEq (3.4% CuEq) from 68.7m.

A series of holes were drilled into the far southwestern sector of the pit shell to better model the position of local hanging wall mineralized extensions. Infilling an area with previously wider spaced drill data.

Exploration Update

The Company is pleased to report that two of its exploration title applications, 866.261/2021 and 866.753/2022, have been approved, adding 14,933 Ha to areas licensed for exploration ("Figure 2"). The Company is mobilizing its staff to commence land access agreements for these newly granted areas in this increasingly prospective southern sector of the Cabaçal VMS Belt. The granted areas include the Alvorada target, where georeferencing and digitizing of historical BP Minerals data identified the belt's strongest peak copper-in-stream geochemical value of 164ppm Cu. This surpasses the original copper anomalies of Cabaçal (56ppm Cu) and Santa Helena (36ppm Cu). With BP's 1980s exploration focus on gold, and Alvorada, having no associated gold anomaly, this was not followed up at the time despite its high copper content.

Cannot view this image? Visit: https://images.newsfilecorp.com/files/7354/258230_3580f8f3742ec947_003.jpg

Figure 2: Location of licences newly approved for exploration, including the Alvorada Target.

To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/7354/258230_3580f8f3742ec947_003full.jpg

Reconnaissance teams have continued with data collection and drill planning in the Santa Fé and Cigarra areas. At Cigarra, the Company has defined a 2km-long target corridor associated with elevated chargeability responses and Cu-Au & Zn soil geochemical anomalies, with peak values in Meridian infill samples of 722ppm Cu; 1211ppm Zn; 180 ppm Au (non-coincident), in an undrilled sector of the mine sequence stratigraphy to the northwest of Cabaçal. Gold has been recovered from now exhausted historical alluvial workings. Reconnaissance drilling is planned to be initiated during this second half of the year.

The Company has received results from two holes to date from the Santa Fé area, which have shown some affinity to Cabaçal-style VMS mineralization, having broader zones of disseminated copper sulphide mineralization with low Pb-Zn contents. Economic grades are yet to be intersected, but mineralization was encountered over a wide interval, in CD-722 (21.4m @ 0.1% Cu from 10m), and CD-717 (16.6m @ 0.2% Cu). Drilling and down-hole bore hole EM surveys are planned.

Results from a number of other regional scout exploration holes in the mine corridor have added further context to early-stage targets outside of the Cabaçal and Santa Helena spheres. Hole CD-615 drilled at the Chiquito[4] Au-Ag discovery returned 15.0m @ 1.3g/t AuEq (1.0g/t Au, 0.1% Cu & 23.5g/t Ag) from 79.0m, confirming the down-dip continuity of the mineralization. The core of the intersection hosts a higher-grade interval of 5.4m @ 2.1g/t Au & 29.2g/t Ag from 81.9m, including 9.4g/t Au, 104 g/t Ag over 0.4m (Sample CBDS90212). The Company has sent a sample to SGS Canada for gold deportment testwork to better understand the characteristics of this mineralization.

Initial holes testing other regional targets have verified active hydrothermal systems with positive indicator elements. The Company will use the information generated to build in a vectoring study in prioritizing ongoing drilling. The base metal, precious metal and indicator element assemblages are consistent with hydrothermal fluids driven from a tonalitic subvolcanic intrusion. Some areas of interest include the CD-593 drill site at Sucuri South where drilling shows strong quartz-sulphide veining in a hole directed to the south, with a peak response from a bore-hole Mise a la Masse survey showing a stronger chargeable source to the north-east (Figure 1).

CD-607 also verified that the Induced Polarization survey anomaly north of Santa Helena, largely covered by colluvial scree masking the basement, has correlative geochemical responses with the Santa Helena horizon and likely represents a structural repeat, defining a new target corridor, "Santa Helena North".

Cannot view this image? Visit: https://images.newsfilecorp.com/files/7354/258230_3580f8f3742ec947_004.jpg

Table 2: Exploration drill hole geochemical indicators.

To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/7354/258230_3580f8f3742ec947_004full.jpg

Cannot view this image? Visit: https://images.newsfilecorp.com/files/7354/258230_3580f8f3742ec947_005.jpg

Figure 3: Example of regional drill hole with sulphidic vein assemblages and off-hole geophysical target, CD-593, Sucuri South, 4km west of Santa Helena.

To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/7354/258230_3580f8f3742ec947_005full.jpg

Cannot view this image? Visit: https://images.newsfilecorp.com/files/7354/258230_3580f8f3742ec947_006.jpg

Figure 4: Location of CD-607, confirming the presence of mineralization remaining to be tested in a 1km strike length chargeability anomaly: Santa Helena North.

To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/7354/258230_3580f8f3742ec947_006full.jpg

Cabaçal DFS Program

The Company has shipped from site a large selection of diamond core to SGS Canada for the DFS stage of metallurgical studies. The first shipment of material selected is representative of the ore that will be mined in the early phases of open pit at Cabaçal and has arrived in Canada. The second consignment has left the site and is being prepared for export, forming a bulk sample for mini pilot plant testwork, that will also provide the Company with a representative sample of the copper sulphide concentrate (with high gold and silver contents) for marketing purposes with smelter and trading groups.

During the last week of June, the Company also hosted representatives of Ausenco's expanded DFS engineering and geotechnical team, who combined with the Company's in-house engineering team to review infrastructure sites from the final stages of DFS planning. The site review included a comprehensive inspection of access routes, plant and waste dump sites, to assist with planning the final programs to data collection for the DFS study.

About Meridian

Meridian Mining is focused on:

  • The development and exploration of the advanced stage Cabaçal VMS gold‐copper project;

  • The initial resource definition at the second higher-grade VMS asset at Santa Helena as the first stage of the Cabaçal Hub development strategy;

  • Regional scale exploration of the Cabaçal VMS belt to expand the Cabaçal Hub strategy; and

  • Exploration in the Jaurú & Araputanga Greenstone belts (the above all located in the State of Mato Grosso, Brazil).

The Pre-feasibility Study technical report (the "PFS Technical Report") dated March 31, 2025, entitled: "Cabaçal Gold-Copper Project NI 43-101 Technical Report and Pre-feasibility Study" outlines a base case after-tax NPV5 of USD 984 million and 61.2% IRR from a pre-production capital cost of USD 248 million, leading to capital repayment in 17 months (assuming metals price scenario of USD 2,119 per ounces of gold, USD 4.16 per pound of copper, and USD 26.89 per ounce of silver). Cabaçal has a low All-in-Sustaining-Cost of USD 742 per ounce gold equivalent & production profile of 141,000 ounce gold equivalent life of mine, driven by high metallurgical recovery, a low life-of-mine strip ratio of 2.3:1, and the low operating cost environment of Brazil.

The Cabaçal Mineral Reserve estimate consists of Proven and Probable reserves of 41.7 million tonnes at 0.63g/t gold, 0.44% copper and 1.64g/t silver (at a 0.25 g/t gold equivalent cut-off grade).

Readers are encouraged to read the PFS Technical Report in its entirety. The PFS Technical Report may be found under the Company's profile on SEDAR+ at www.sedarplus.ca and on the Company's website at www.meridianmining.co

The PFS Technical Report was prepared for the Company by Tommaso Roberto Raponi (P. Eng), Principal Metallurgist with Ausenco Engineering Canada ULC; Scott Elfen (P. E.), Global Lead Geotechnical and Civil Services with Ausenco Engineering Canada ULC; John Anthony McCartney, C.Geol., Ausenco Chile Ltda.; Porfirio Cabaleiro Rodriguez (Engineer Geologist FAIG), of GE21 Consultoria Mineral; Leonardo Soares (PGeo, MAIG), Senior Geological Consultant of GE21 Consultoria Mineral; Norman Lotter (Mineral Processing Engineer; P.Eng.), of Flowsheets Metallurgical Consulting Inc.; and, Juliano Felix de Lima (Engineer Geologist MAIG), of GE21 Consultoria Mineral.

On behalf of the Board of Directors of Meridian Mining UK S

Mr. Gilbert Clark - CEO and Director
Meridian Mining UK S
8th Floor, 4 More London Riverside
London SE1 2AU
United Kingdom

Email: info@meridianmining.co
Ph: +1 778 715-6410 (BST)
Stay up to date by subscribing for news alerts here: https://meridianmining.co/contact/
Follow Meridian on Twitter: https://twitter.com/MeridianMining
Further information can be found at: www.meridianmining.co

Technical Notes

Samples have been analysed at ALS laboratory in Lima, Peru. Samples are dried, crushed with 70% passing 85% passing 200µm. Routine gold analyses have been conducted by Au‐AA24 (fire assay of a 50g charge with AAS finish). High‐grade samples (>10g/t Au) are repeated with a gravimetric finish (Au‐GRA22), and base metal analysis by methods ME-ICP61 and OG62 (four acid digest with ICP-AES finish). Visible gold intervals are sampled by metallic screen fire assay method Au‐SCR21. Samples are held in the Company's secure facilities until dispatched and delivered by staff and commercial couriers to the laboratory. Pulps and coarse rejects are retained and returned to the Company for storage. The Company submits a range of quality control samples, including blanks and gold and polymetallic standards supplied by Rocklabs, ITAK and OREAS, supplementing laboratory quality control procedures. Approximately 5% of archived samples are sent for umpire laboratory analysis, including any lots exhibiting QAQC outliers after discussion with the laboratory. In BP Minerals sampling, gold was analysed historically by fire assay and base metals by three acid digest and ICP finish at the Nomos laboratory in Rio de Janeiro. Silver was analysed by aqua regia digest with an atomic absorption finish. True width is considered to be 80-90% of intersection width. Assay figures and intervals are rounded to 1 decimal place. Gold equivalents for new results reported from Cabaçal are calculated as: AuEq(g/t) = (Au(g/t) * %Recovery) + (1.346*(Cu% * %Recovery)) + (0.013*(Ag(g/t) * %Recovery)), and Copper equivalents are calculated as: CuEq(%) = (Cu(%) * %Recovery) + ((0.743* (Aug/t * %Recovery)) + ((0.0094*(Ag(g/t) * %Recovery)) where:

  • Au_recovery_ppm = 5.402ln(Au_Grade_ppm)+88.66

  • Cu_recovery_pct = 3.906ln(Cu_Grade_pct)+ 95.27

  • Ag_recovery_ppm = 30.354ln(Ag_Grade_ppm)+43.691

Recoveries based on 2022 and 2023 metallurgical testwork on core submitted to SGS Lakefield

Qualified Person

Mr. Erich Marques, B.Sc., FAIG, Chief Geologist of Meridian Mining and a Qualified Person as defined by National Instrument 43-101, has reviewed, verified, and approved the technical information in this news release.

Cautionary Statement on Forward-Looking Information

Some statements in this news release contain forward-looking information or forward-looking statements for the purposes of applicable securities laws. These statements address future events and conditions and so involve inherent risks and uncertainties, as disclosed under the heading "Risk Factors" in Meridian's most recent Annual Information Form filed on www.sedarplus.ca. While these factors and assumptions are considered reasonable by Meridian, in light of management's experience and perception of current conditions and expected developments, Meridian can give no assurance that such expectations will prove to be correct. Any forward-looking statement speaks only as of the date on which it is made and, except as may be required by applicable securities laws, Meridian disclaims any intent or obligation to update any forward-looking statement, whether as a result of new information, future events, or results or otherwise.

Table 1: Assay Results from Cabaçal Drilling.

Hole-idDipAziEOHZoneIntAuEqCuEqAuCuAgFrom
(m)(m)(g/t)(%)(g/t)(%)(g/t)(m)
CD-721-59044100.3SCZ











3.70.20.20.00.20.219.5





6.60.20.20.00.20.227.4





3.10.90.60.80.10.345.5





8.40.80.60.30.40.557.6





7.20.60.40.20.31.873.0
CD-716-51047127.0SCZ











3.60.20.10.00.20.493.3





4.00.20.10.00.20.4104.0





0.41.61.20.11.22.5117.8
CD-713-60320163.7SCZ











7.60.40.30.00.31.083.0





2.00.40.30.10.20.6104.0





3.30.30.20.10.20.4114.0





1.10.50.40.30.20.5120.5





4.80.90.60.40.41.2125.7





6.00.50.40.20.21.0137.0





3.50.50.40.40.10.6146.0
CD-710-68040169.3SCZ











1.60.70.60.00.60.982.0





4.81.31.01.20.10.4119.3





15.70.30.30.10.21.3131.3
CD-709-60359166.4SCZ











19.70.20.10.10.10.4137.0
CD-704-7510896.0CCZ











7.40.40.30.00.30.68.8





6.40.40.30.10.30.519.6





3.50.30.20.00.20.240.6





14.30.80.60.20.42.546.9




Including3.62.21.60.51.38.457.6





0.45.34.02.32.314.471.9





1.70.60.40.20.42.477.1
CD-703-77072117.1CCZ











17.20.50.40.10.40.624.0





2.50.20.10.10.10.145.2





1.10.40.30.10.20.251.7





27.10.50.40.20.30.655.9





23.71.10.80.50.52.185.9




Including3.03.22.41.71.25.5103.8
CD-702-77072176.6CCZ











1.40.20.20.00.21.046.6





8.70.30.30.00.30.567.0





2.30.30.20.00.20.687.9





6.90.50.40.00.40.795.0





2.20.40.30.20.11.5108.2





1.00.30.30.10.20.4122.9





28.63.52.61.01.99.7127.6




Including3.96.14.54.01.68.3136.7




Including2.89.46.91.16.128.6143.8




Including1.85.74.31.13.517.1149.1




Including2.89.06.71.25.833.1155.9
CD-695-46271117.4CCZ











14.30.40.30.00.30.745.0





38.90.90.70.50.30.564.4




Including13.31.81.41.40.40.967.0




Including0.715.811.89.35.113.067.0
CD-694-46039164.6CCZ











4.10.60.50.00.50.962.6





8.10.90.70.20.61.578.5





5.80.80.60.40.41.289.9





12.30.40.30.30.20.299.0





13.00.50.40.20.20.2114.0





20.81.91.40.51.04.4132.0




Including4.17.75.72.44.018.2148.8
CD-693-57044117.0CCZ











20.60.40.30.00.30.710.4





1.60.60.40.10.40.640.5





1.00.50.40.10.30.551.7





4.80.60.50.10.40.456.8





32.51.71.20.50.95.164.2




Including14.32.92.10.71.69.877.3




Including2.39.47.01.95.632.386.5





1.80.80.60.10.52.7103.0
CD-692-45045175.0SCZ











1.50.60.50.00.51.466.6





3.20.50.40.00.40.997.0





10.90.30.20.00.20.3104.5





36.00.60.50.20.31.4128.3




Including3.72.21.70.51.37.3160.6
CD-689-5904570.3ECZ











25.00.80.60.10.51.114.3





1.23.32.50.82.07.548.5





2.90.50.40.10.32.054.9
CD-687-58044121.6SCZ











6.50.50.40.00.40.920.9





1.70.80.60.10.60.930.7





1.10.40.30.40.11.038.4





21.40.90.70.90.10.342.0




Including1.29.57.19.20.51.351.2





7.00.70.50.20.42.170.9





2.60.60.50.10.41.691.1





3.90.70.50.10.51.4101.0
CD-684-5904590.2CCZ











8.70.30.20.00.20.416.9





1.40.70.50.70.00.328.7





1.51.71.30.41.01.133.5





4.00.60.40.40.20.239.8





2.70.20.10.20.00.146.4





7.40.70.50.30.31.556.7





1.70.50.40.10.31.567.9





2.81.20.90.20.82.974.4
CD-683-50041108.5ECZ











1.20.30.20.50.10.95.8





2.40.40.30.00.30.421.0





31.70.80.60.20.51.140.0




Including4.21.91.40.21.31.242.4




Including5.01.20.90.50.62.261.0





3.21.41.00.50.72.580.0





1.11.20.90.20.82.991.8
CD-680-5904794.7CCZ











5.40.80.60.10.60.815.9





8.20.40.30.20.20.224.1





26.00.90.70.70.20.636.3




Including2.52.72.02.10.53.559.9





8.90.40.30.20.20.667.4





0.90.60.40.10.42.081.4
CD-679-60048110.2SCZ











14.60.50.30.10.30.825.0





48.20.80.60.50.31.648.0




Including3.42.11.62.00.10.349.0




Including2.74.53.41.42.313.368.7
CD-678-49040113.6CCZ











27.90.30.20.00.20.514.4





1.90.50.40.50.00.247.4





33.61.41.00.70.52.357.0




Including19.62.01.51.10.83.567.4





3.20.60.40.10.44.893.8





0.81.41.10.60.71.9104.1
CD-675-60045105.1CCZ











6.20.60.50.00.51.113.6





3.20.60.40.00.40.523.8





7.00.70.50.20.40.330.1





5.60.80.60.70.10.445.0





14.31.30.90.50.73.154.0




Including5.22.21.70.71.26.962.2





2.70.40.30.20.21.073.3





3.31.71.30.41.06.379.6
CD-673-59043120.6SCZ











2.70.30.20.00.20.730.1





3.80.50.40.00.41.035.8





3.60.50.30.30.22.256.8





31.00.50.40.20.31.171.3




Including6.40.90.70.20.63.287.9




Including0.93.22.40.22.216.187.9
CD-669-60045124.7SCZ











6.80.60.40.00.41.338.6





1.60.30.20.00.20.650.4





1.80.20.20.00.20.656.0





8.11.10.81.00.11.072.8




Including2.82.21.62.10.11.972.8





26.80.40.30.10.20.384.7




Including4.10.90.60.30.50.686.3




Including1.61.30.90.60.60.986.9





3.40.60.40.30.20.5114.5
CD-648-57033109.1CCZ











13.50.50.40.00.41.117.0





11.50.30.20.10.20.441.8





8.91.10.80.40.51.355.6





21.02.21.61.10.95.768.6




Including12.53.12.31.41.38.877.0

 

1 See NI 43 101 Pre-Feasibility Study Technical Report for the Cabaçal Gold-Copper-Silver Deposit in Brazil
2 See Meridian Mining News Release of February 14, 2023.
3 Meridian Mining News Release of April 29, 2025.
4 See Meridian News release April 5 & July 12 2022

To view the source version of this press release, please visit https://www.newsfilecorp.com/release/258230

FAQ

What were the key drilling results from Meridian Mining's (MRRDF) Cabaçal project in July 2025?

The key result was hole CD-702 which intersected 28.6m @ 3.5g/t AuEq (2.6% CuEq) from 127.6m depth, including multiple high-grade copper zones with peak assays of 10.6% Cu and 11.0% Cu.

How many new exploration licenses did Meridian Mining receive for the Cabaçal project?

Meridian received two new exploration licenses (866.261/2021 and 866.753/2022), adding 14,933 Ha to their exploration area, including the Alvorada copper prospect.

What is the significance of the Alvorada copper prospect for Meridian Mining?

Alvorada shows the belt's strongest historical copper-in-stream geochemical value of 164ppm Cu, surpassing the original copper anomalies of Cabaçal (56ppm Cu) and Santa Helena (36ppm Cu).

What is the current status of Meridian Mining's Definitive Feasibility Study (DFS)?

The DFS infill drilling program is nearing its final stages, with ongoing grade and density modeling improvements. The company has also shipped core samples to SGS Canada for DFS stage metallurgical studies.

What new exploration targets has Meridian Mining identified at Cabaçal?

The company has identified several new targets including Cigarra (2km-long target corridor), Santa Fé, Sucuri South, and Santa Helena North, which represents a potential structural repeat of the Santa Helena deposit.
Stock MRRDF logo
Meridian Mining Uk Societas

OTC:MRRDF

MRRDF Rankings

#6196 Ranked by Market Cap
N/A Ranked by Dividends

MRRDF Latest News

Jun 24, 2025
Meridian Announces Results of Annual and Special Meeting of Shareholders
Jun 10, 2025
Meridian Drills Multiple Intersections of Shallow High-Grade Au-Cu-Ag & Zn Mineralization at Santa Helena
May 8, 2025
Meridian Appoints Ausenco Brazil as Lead Engineer for the Cabaçal Definitive Feasibility Study and Signs LOI with Aurubis AG
Apr 29, 2025
Meridian's Drilling Extends High-Grade Gold-Copper Ore Zone at Cabacal Via Gold Veins Grading up to 276g/t Au
Apr 15, 2025
Meridian Drills Into Shallow High-Grade Cu-Au-Zn & Ag Massive to Semi-Massive Sulphides on the Open Western Limit of Santa Helena

MRRDF Stock Data

135.32M
193.87M
26.82%
16.32%
Other Industrial Metals & Mining
Basic Materials
Link
United Kingdom
London

Related Articles

Continue reading with these related stories

View All Latest News