Altamira Gold Intersects Gold Mineralization Within a New Porphyry Body at Tavares Norte Target, Cajueiro District, Brazil
Altamira Gold (EQTRF) reported initial reconnaissance drilling results at the Tavares Norte target in the Cajueiro district, Brazil, 5.5km east of the Maria Bonita deposit.
Two holes (TVN001, TVN002) intersected extensive quartz porphyry with sulphides. TVN002 returned 161.7m @ 0.2 g/t Au including 18.6m @ 0.4 g/t Au from 36m and 20m @ 0.3 g/t Au from 133m. TVN001 returned narrow low-grade intervals including 3.3m @ 0.30 g/t Au.
Alteration and porphyry signatures similar to Maria Bonita were logged. Follow-up drilling is planned to the east of TVN002 and at nearby Morro Verde; assays are pending for several in‑progress holes at Maria Bonita.
Altamira Gold (EQTRF) ha riportato i risultati iniziali di drilling di reconnaissance al bersaglio Tavares Norte nel distretto Cajueiro, Brasile, a 5,5 km a est del deposito Maria Bonita.
Due fori (TVN001, TVN002) hanno intercettato estesi porfiro-quarzosi con solfuri. TVN002 ha riportato 161,7 m a 0,2 g/t Au includendo 18,6 m a 0,4 g/t Au a partire da 36 m e 20 m a 0,3 g/t Au a partire da 133 m. TVN001 ha riportato intervalli stretti a basso grado includendo 3,3 m a 0,30 g/t Au.
Alterazione e firme porfiriche analoghe a Maria Bonita sono state registrate. Ulteriori drill sono pianificati a est di TVN002 e presso il vicino Morro Verde; le assature sono in attesa per diverse forche in corso a Maria Bonita.
Altamira Gold (EQTRF) informó resultados iniciales de perforaciones de reconocimiento en el objetivo Tavares Norte en el distrito Cajueiro, Brasil, a 5,5 km al este del yacimiento Maria Bonita.
Dos agujeros (TVN001, TVN002) cruzaron extensivas porfiro-quirzosas con sulfuros. TVN002 obtuvo 161,7 m a 0,2 g/t Au incluyendo 18,6 m a 0,4 g/t Au desde 36 m y 20 m a 0,3 g/t Au desde 133 m. TVN001 obtuvo intervalos estrechos de baja ley, incluyendo 3,3 m a 0,30 g/t Au.
La alteración y firmas porfíricas similares a Maria Bonita fueron registradas. Se planifican perforaciones de seguimiento al este de TVN002 y en Morro Verde cercano; los ensayos se esperan para varias sondas en curso en Maria Bonita.
Altamira Gold (EQTRF)는 브라질 카주에이로 지구의 Tavares Norte 표적에서 마리아 보니타 매장보다 동쪽으로 5.5km 떨어진 Cajueiro 지구에서 초기 정찰 시추 결과를 보고했습니다.
두 개의 시추 구멍(TVN001, TVN002)은 광범위한 석영 포르피리와 황화물을 교차시켰습니다. TVN002는 161.7m @ 0.2 g/t Au를 회수했고, 그 중 36m 지점에서 18.6m @ 0.4 g/t Au와 133m 지점에서 20m @ 0.3 g/t Au를 포함합니다. TVN001은 3.3m @ 0.30 g/t Au의 좁은 저등급 구간을 보였습니다.
마리아 보니타와 유사한 변형 및 포르피리 서명이 기록되었습니다. TVN002 동쪽과 인근 Morro Verde에서 추적 시추를 계획 중이며 Maria Bonita에서 진행 중인 다수의 시추에 대한 분석은 보류 중입니다.
Altamira Gold (EQTRF) a communiqué les premiers résultats de forage de reconnaissance sur la cible Tavares Norte dans le district de Cajueiro, Brésil, à 5,5 km à l’est du dépôt Maria Bonita.
Deux puits (TVN001, TVN002) ont intersecté des porphyres/quartz avec des sulfures. TVN002 a renvoyé 161,7 m à 0,2 g/t d’Au incluant 18,6 m à 0,4 g/t d’Au à partir de 36 m et 20 m à 0,3 g/t d’Au à partir de 133 m. TVN001 a renvoyé des intervalles étroits à faible teneur incluant 3,3 m à 0,30 g/t d’Au.
Des signes d’altération et de porphyres similaires à Maria Bonita ont été enregistrés. Des forages de suivi sont prévus à l’est de TVN002 et au Morro Verde voisin; les résultats de plusieurs forages en cours à Maria Bonita restent attendus.
Altamira Gold (EQTRF) berichtete erste Aufschlussbohrergebnisse bei dem Ziel Tavares Norte im Cajueiro-Distrikt, Brasilien, 5,5 km östlich des Maria Bonita-Depots.
Zwei Bohrlöcher (TVN001, TVN002) durchbohrten ausgedehnte Quarz- Porphyr-ähnliche Strukturen mit Sulfiden. TVN002 ergab 161,7 m bei 0,2 g/t Au einschließlich 18,6 m bei 0,4 g/t Au ab 36 m und 20 m bei 0,3 g/t Au ab 133 m. TVN001 lieferte enge, niedriggradige Intervalle einschließlich 3,3 m bei 0,30 g/t Au.
Veränderungen und Porphyr-Signaturen äquivalent zu Maria Bonita wurden protokolliert. Folgebohrungen sind östlich von TVN002 und in der nahe gelegenen Morro Verde geplant; Proben aus mehreren laufenden Bohrungen bei Maria Bonita stehen noch aus.
Altamira Gold (EQTRF) أبلغت عن نتائج الحفر الاستكشافية الأولية في هدف Tavares Norte في منطقة Cajueiro بالبرازيل، على بعد 5.5 كم شرق من خِزَن Maria Bonita.
قطعتاثان من الآبار (TVN001, TVN002) بنطاقات من البورفي italization quartz مع الكبريتيدات. عاد TVN002 بــ 161.7 م عند 0.2 جم/طن من الذهب بما في ذلك 18.6 م عند 0.4 جم/من الذهب من 36 م و 20 م عند 0.3 جم/طن من الذهب من 133 م. عاد TVN001 بفواصل ضيقة منخفضة الدرجة تشمل 3.3 م عند 0.30 جم/طن من الذهب.
سُجِّلت تغيرات وآثار بورفيري مماثلة لـ Maria Bonita. تُخطَّط حفر متابعة شرق TVN002 وفي Morro Verde القريب؛ نتائج التحاليل معلقة لعدة حفر قيد التقدم في Maria Bonita.
Altamira Gold (EQTRF) 报告了在巴西 Cajueiro 区域的 Tavares Norte 目标的初步勘探钻探结果，距离 Maria Bonita 库东 5.5 公里。
两口井（TVN001、TVN002）发现了广泛的石英斑岩并含有硫化物。TVN002 返回 161.7m @ 0.2 g/t Au，其中包括 从 36m 起 18.6m @ 0.4 g/t Au 和 从 133m 起 20m @ 0.3 g/t Au。TVN001 返回窄且低品位区间，包括 3.3m @ 0.30 g/t Au。
记录到与 Maria Bonita 相似的蚀变和斑岩征象。计划向 TVN002 东部和邻近 Morro Verde 进行后续钻探； Maria Bonita 的几口在制样的测试结果仍在等待中。
- 161.7m @ 0.2 g/t Au intercept in TVN002
- 18.6m @ 0.4 g/t Au higher-grade interval from 36m in TVN002
- 20m @ 0.3 g/t Au interval from 133m in TVN002
- 395.5m @ 0.4 g/t Au previously reported at Maria Bonita (MBA032)
- Most intercepts are low-grade (around 0.2–0.4 g/t Au)
- TVN001 missed main soil anomaly and did not define higher-grade zone
- Several key assays and follow-up drill results are still pending
Vancouver, British Columbia--(Newsfile Corp. - October 29, 2025) - Altamira Gold Corp. (TSXV: ALTA) (FSE: T6UP) (OTCQB: EQTRF) ("Altamira" or the "Company"), is pleased to report assay results from initial reconnaissance drilling at the Tavares Norte target, located within the Company's Cajueiro District area, Brazil.
Highlights:
- Initial reconnaissance drilling at the Tavares Norte target, located 5.5km east of the Maria Bonita gold deposit, indicates the presence of a second mineralized porphyry body, which is geologically and geochemically very similar to the porphyry body that hosts the Maria Bonita mineral resource.
- Drill results from the two initial reconnaissance holes at Tavares Norte include intervals of 18.6m @ 0.4 g/t gold from 36m depth and 20m @ 0.3 g/t gold from 133m depth in TVN002 within a broader zone of 161.7 metres of lower grade gold mineralization.
- Further drilling will target the area to the east of drill hole TVN 002, where the gold-in-soil anomaly is increasing in strength.
- Altered and veined quartz porphyry rocks have also been logged in initial drilling at the Morro Verde target, 1.5 km east of Tavares Norte where results are pending.
- Drilling at the Maria Bonita gold deposit is ongoing. Drill hole MBA033 was completed to a depth of 497 meters and samples are being prepared for assay. Drill hole MBA034, collared 100m south of hole MBA033 is now in progress.
CEO Mike Bennett commented; "The results from the initial reconnaissance drilling at the Tavares Norte target are highly encouraging as they demonstrate the presence of a second gold mineralized porphyry body within the Cajueiro district. The geological and geochemical similarities to the Maria Bonita porphyry, together with the presence of strong alteration and sulfide mineralization, validates our model for the prospectivity of the east-west corridor extending through Maria Bonita. The Maria Bonita gold porphyry deposit is not unique within the Cajueiro district and we intend to focus additional drilling at Tavares Norte to better define the size of the porphyry body now identified there. Concurrently, ongoing drilling at Maria Bonita continues to intersect mineralized porphyry adjacent to and below the previously estimated mineral resource."
CAJUEIRO DISTRICT
The Cajueiro district is located approximately 75km NW of the town of Alta Floresta in the state of Mato Grosso (Figure 1) in central western Brazil. The project is easily accessible by road, lies on open farmland and has grid power and a local water supply. Cajueiro is the most advanced of the key projects that Altamira controls in the region (Figure1).
Figure 1: Location of Altamira Gold's projects in the Alta Floresta Belt.
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The Cajueiro district consists of two independently estimated gold mineral resources at Cajueiro Central and Maria Bonita, plus a series of eight additional untested exploration targets within a radius of 8km of Cajueiro Central.
The Cajueiro Central area has a current open pit resource1 of 5.66Mt @ 1.02 g/t gold for a total of 185,000 oz in the Indicated Resource category and 12.66Mt @ 1.26 g/t gold for a total of 515,000 oz in the Inferred Resource category (estimated using a cut-off grade of 0.25g/t Au and a gold price of US
The Maria Bonita open-pit resource consists of Indicated Resources of 24.19Mt @ 0.46g/t gold (for a total of 357,800oz) and Inferred Resources of 25.64Mt @ 0.44g/t gold (for a total of 362,400oz)2. These resources were calculated using a 0.2 g/t gold cut-off grade and a gold price of US
The Maria Bonita porphyry gold deposit forms part of a district-scale portfolio of prospects that are interpreted as having a similar geological origin (Figure 2). The Cajueiro area is characterized by a 15km stretch of former alluvial gold workings along the Teles Pires river. The source of some of this alluvial gold is related to a pronounced east-west corridor of gold anomalies in soils and rock chips and a set of sub-cropping intrusions extending east-west over 8km, implying the presence of a long-standing and deep-seated crustal structure.
Figure 2: Cajueiro district mineral resources at Cajueiro Central and Maria Bonita (white labels) and prospects (blue labels with scout drilling, yellow labels not yet drilled). An alignment of six of the targets occur in close spatial association to a pronounced east-west fault corridor marked by later gabbroic dykes.
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Tavares Norte Drilling Update
The Tavares Norte prospect is located 1km north-west of the Central resource area and 5.5km east of the Maria Bonita porphyry gold deposit. The prospect is defined by a gold-in-soil anomaly extending over an area of 1800 x 1300m. Previous surface rock chip grab sampling+ across the prospect returned grades of up to 7.8 g/t gold (see press release dated April 14, 2025).
Two drill holes (TVN001 and TVN002) were completed at the Tavares Norte target, located approximately 100 metres apart. Both holes intersected extensive zones of quartz porphyry and magmatic breccia, hosting sulphide mineralization, with very similar geological characteristics to the Maria Bonita porphyry.
+ By their nature, grab samples are not representative of the bulk metal content of a mineralized zone.
Figure 3: Tavares Norte drill holes in relation to the defined soil anomaly, surface rock chip samples and trench exposure.
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Hole TVN002 was sited at the western end of the higher-grade section of the soil anomaly and was completed to a depth of 227m metres. The hole intersected 161.7 metres of quartz porphyry with quartz veining and abundant pyrite and magnetite, associated with potassic and phyllic alteration. The entire quartz porphyry interval, including zones of brecciated intrusive, returned 161.7m @ 0.2g/t gold (Figure 4).
The hole revealed gold mineralization in quartz veined, porphyry intrusive rocks with the entire quartz porphyry interval comprising 161.7m @ 0.2g/t gold within which 18.6m @ 0.4 g/t gold from 36m depth and 20m @ 0.3 g/t gold from 133m depth are the most notable (Table 1).
Hole TVN001 was drilled 100m to the west of TVN002 and intersected narrow intervals of low-grade mineralization including 3.3m @ 0.30 g/t gold from 11.0m depth and 1.0m @ 0.40 g/t gold from 61.0m depth. The hole cut wide intervals of quartz porphyry and magnetic breccia containing pyrite, galena, molybdenite, and sphalerite. This hole was collared to the west of the main gold-in-soil anomaly for logistical reasons at the time of drilling (Figure 3) and therefore did not intersect the main mineralized zone, which is interpreted as extending eastwards where further drilling is planned.
Figure 4: Cross section for drill hole TVN002.
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Table 1: Main assay results for drill holes TVN001 and TVN002. All mineralization is hosted within altered quartz porphyry.
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Altamira plans to conduct follow-up drilling at Tavares Norte to further delineate the porphyry system and test for higher-grade zones associated with magnetite-bearing quartz vein stockworks hosted in the quartz porphyry.
Figure 5: Typical quartz porphyry intrusive core from Tavares Norte (right) compared with the host rock to the Maria Bonita mineral resource (left).
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Maria Bonita Drilling Update
The objective of the current drill program at Maria Bonita is to enlarge the footprint of the known mineral resource by drill testing for potential extensions to the existing resource, including its depth extent, and new satellite targets.
The first drill hole of the current program, MBA032, was completed to a depth of 546 metres and returned 395.5m @ 0.4 g/t gold from 44.5m depth in the same quartz porphyry intrusive that was intersected in previous drilling (see press release dated October 15, 2025).
Hole MBA033 was recently completed to a depth of 497m and core samples are in preparation for assay. Hole MBA034, which is collared 100m south of hole MBA032 and aims to test a deeper intercept below that hole, is underway.
Further drilling at Maria Bonita will continue to target the extension of higher-grade zones to depth and along strike.
Figure 6: Locations of drill holes at Maria Bonita from the past campaign (white) and the current campaign (yellow). The background shows interpreted major structures within the broad, trapezoid-shaped magnetic low that hosts the alteration and mineralization. The optimised pit outline is derived from the maiden mineral resource estimate2 (June 2025).
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Qualified Person
Guillermo Hughes, FAIG and M Aus IMM., a consultant to the Company as well as a Qualified Person as defined by National Instrument 43-101, supervised the preparation of the technical information in this news release.
About Altamira Gold Corp.
The Company is focused on the exploration and development of gold projects within western central Brazil, strategically advancing five projects spanning over 100,000 hectares within the prolific Juruena Gold Belt-an area that has historically yielded over 6 million ounces of placer gold3. The Company's advanced Cajueiro project contains two gold deposits. The central area comprises NI 43-101 resources of 5.66Mt @ 1.02 g/t gold for a total of 185,000 oz in the Indicated Resource category and 12.66Mt @ 1.26 g/t gold for a total of 515,000oz in the Inferred Resource category. In addition, the Maria Bonita gold deposit comprises additional open pit Indicated Resources of 24.19Mt @ 0.46g/t for a total of 357,800oz, and Inferred Resources of 25.64Mt @ 0.44g/t for a total of 362,400oz.
Ongoing exploration and fieldwork at Cajueiro indicate the presence of multiple porphyry gold systems, reinforcing its potential for district-scale development. These hard-rock gold sources align with historical alluvial gold production, highlighting the region's exceptional gold endowment and potential scalability. With two independently established mineral resources, a highly prospective geological setting and a track record of significant discoveries, the Company is well-positioned to unlock further value across its extensive land package.
1NI 43-101 Technical Report, Cajueiro Project, Mineral Resource Estimate: Global Resource Engineering, Denver Colorado USA, 10thOctober 2019; Authors K. Gunesch, PE; H. Samari, QP-MMSA; T. Harvey, QP-MMSA
2 NI43-101 Technical Report, Mineral Resource for the Maria Bonita Prospect: VMG Consultoria, Belo Horizonte, Minas Gerais, Brazil. 12th June 2025; Author V. Myadzel
3 Juliani, C. et al; Gold in Paleoproterozoic (2.1 to 1.77 Ga) Continental Magmatic Arcs at the Tapajós and Juruena Mineral Provinces (Amazonian Craton, Brazil): A New Frontier for the Exploration of Epithermal-Porphyry and Related Deposits. Minerals 2021, 11, 714. https://doi.org/10.3390/min11070714
On Behalf of the Board of Directors,
ALTAMIRA GOLD CORP.
"Michael Bennett"
Michael Bennett
President & CEO
Tel: 604.676.5661
Toll-Free:1-833-606-6271
info@altamiragold.com
www.altamiragold.com
Neither TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.
The securities described herein have not been registered under the U.S. Securities Act or any state securities laws, and may not be offered or sold in the United States absent registration or an applicable exemption from registration requirements under the U.S. Securities Act and any applicable state securities laws.
Forward-looking Statements
Certain information contained herein constitutes "forward-looking information" under Canadian securities legislation. Forward-looking information includes, but is not limited to, statements with respect to the extension of the Warrants. Generally, forward-looking information can be identified by the use of forward-looking terminology such as "will", "intends" or variations of such words and phrases or statements that certain actions, events or results "will" occur. Forward-looking statements are based on the opinions and estimates of management as of the date such statements are made and they are subject to known and unknown risks, uncertainties and other factors that may cause the actual results to be materially different from those expressed or implied by such forward-looking statements or forward-looking information, including the receipt of all necessary regulatory approvals. Although management of the Company has attempted to identify important factors that could cause actual results to differ materially from those contained in forward-looking statements or forward-looking information, there may be other factors that cause results not to be as anticipated, estimated or intended. There can be no assurance that such statements will prove to be accurate, as actual results and future events could differ materially from those anticipated in such statements. Accordingly, readers should not place undue reliance on forward-looking statements and forward-looking information. The Company will not update any forward-looking statements or forward-looking information that is incorporated by reference herein, except as required by applicable securities laws.
Notes
Gold analysis has been conducted by SGS method FAA505 (fire assay of 50g charge), with higher grade samples checked by FAA525. Analytical quality is monitored by certified references and blanks. Until dispatch, samples are stored under the supervision the Company's exploration office. The samples are couriered to the assay laboratory using a commercial contractor. Pulps are returned to the Company and archived. Drill holes results are quoted as down-hole length weighted intersections.
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FAQ
What were the main drill results at Tavares Norte for Altamira Gold (EQTRF) on October 29, 2025?
Does the Tavares Norte result indicate a second porphyry similar to Maria Bonita for EQTRF?
What are Altamira's next steps for drilling at Tavares Norte and Maria Bonita (EQTRF)?
How material are the grades reported at Tavares Norte (EQTRF) for investors?
Where is the Tavares Norte target relative to the Maria Bonita deposit for Altamira Gold (EQTRF)?
Are assays for ongoing Altamira (EQTRF) holes at Maria Bonita available now?
