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Omai Gold Mines (OTCQB: OMGGF) just announced a major boost at their Omai Gold Property in Guyana. We’re talking a significant increase in their Mineral Resource Estimate (MRE). The headline numbers? Indicated Mineral Resources are now up to 2.1 million ounces of gold (Moz Au) at 2.07 grams per tonne (g/t Au), a 7% jump. And the Inferred Mineral Resources? A massive 92% leap to 4.4 Moz Au at 1.95 g/t Au.
Digging into the details, the Omai property boasts two main deposits. First, the Wenot Deposit packs 970,000 oz of gold in the Indicated category (up 16%) and a whopping 3.7 million oz in the Inferred category (a 130% surge). Then there’s the Gilt Creek Deposit, holding 1.15 million oz of gold Indicated and 665,000 oz Inferred. A key factor here? The MRE is based on a higher gold price assumption of $2,500 per ounce, allowing for lower cut-off grades and a significant increase in total gold ounces.
Omai isn’t sitting still. They’re planning an aggressive drilling campaign to further expand these resources. The goal? A Feasibility Study slated for late 2026. Plus, this project already has a serious head start thanks to existing infrastructure: road access, an airstrip, and established tailings sites. Think reduced development costs and faster timelines.
Omai Gold Mines (OTCQB: OMGGF) ha annunciato un rilevante incremento della Stima delle Risorse Minerali (MRE) per la proprietà aurifera Omai in Guyana, di cui detiene il 100%. L’aggiornamento evidenzia Risorse Minerali Indicate pari a 2,1 Moz Au a 2,07 g/t Au (aumento del 7%) e Risorse Minerali Inferred pari a 4,4 Moz Au a 1,95 g/t Au (aumento del 92%).
La proprietà comprende due giacimenti: il Wenot, con 970.000 oz Au in categoria Indicated (aumento del 16%) e 3,7 M oz Au in categoria Inferred (aumento del 130%), e il Gilt Creek, con 1,15 M oz Au Indicated e 665.000 oz Au Inferred. La MRE è stata calcolata assumendo un prezzo dell’oro più elevato di 2.500 $/oz, consentendo soglie di cutoff inferiori e un aumento del totale delle once.
La società intende proseguire con un programma di perforazioni aggressivo per espandere le risorse e arrivare a uno Studio di Fattibilità entro la fine del 2026. Il progetto beneficia di infrastrutture già presenti, tra cui accesso stradale, una pista d’atterraggio e aree di gestione dei residui già stabilite.
Omai Gold Mines (OTCQB: OMGGF) anunció un aumento significativo de su Estimación de Recursos Minerales (MRE) en la propiedad aurífera Omai en Guyana, de su propiedad al 100%. La actualización muestra Recursos Minerales Indicados de 2,1 Moz Au a 2,07 g/t Au (incremento del 7%) y Recursos Minerales Inferidos de 4,4 Moz Au a 1,95 g/t Au (incremento del 92%).
La propiedad alberga dos depósitos: el Wenot, con 970.000 oz Au Indicadas (aumento del 16%) y 3,7 M oz Au Inferidas (aumento del 130%), y el Gilt Creek, con 1,15 M oz Au Indicadas y 665.000 oz Au Inferidas. La MRE usa una suposición de precio del oro más alta, de 2.500 $/oz, lo que permitió reducir los cortes de ley y aumentar el total de onzas.
La compañía planea continuar con un programa agresivo de perforación para ampliar las reservas y avanzar hacia un Estudio de Factibilidad a finales de 2026. El proyecto se beneficia de infraestructura existente, incluyendo acceso por carretera, una pista de aterrizaje y áreas de relaves ya establecidas.
Omai Gold Mines (OTCQB: OMGGF)는 가이아나에 위치한 100% 소유의 Omai 금 광산에 대한 광물자원추정치(MRE)를 크게 상향 조정했다고 발표했습니다. 업데이트 결과는 표층(Indicated) 광물자원 2.1 Moz Au, 평균 2.07 g/t Au(+7%)와 추정(Inferred) 광물자원 4.4 Moz Au, 평균 1.95 g/t Au(+92%)를 보여줍니다.
해당 광산에는 두 개의 저장이 있습니다: Wenot 저석은 표층 970,000 온스 Au(+16%) 및 추정 3.7M 온스 Au(+130%), Gilt Creek 저석은 표층 1.15M 온스 Au와 추정 665,000 온스 Au를 보유하고 있습니다. 이번 MRE는 금 가격을 1온스당 2,500달러로 가정해 컷오프 등급을 낮추고 총 금 보유량을 늘렸습니다.
회사는 자원을 확장하고 2026년 말까지 타당성 조사(Feasibility Study)로 나아가기 위해 적극적인 시추를 계속할 계획입니다. 이 프로젝트는 도로 접근, 활주로, 기존 폐석장 등 이미 갖춰진 인프라의 이점을 누리고 있습니다.
Omai Gold Mines (OTCQB: OMGGF) a annoncé une augmentation significative de son Estimation des Ressources Minérales (MRE) sur son gisement aurifère Omai en Guyana, dont elle est propriétaire à 100 %. La mise à jour indique des Ressources Minerales Indiquées de 2,1 Moz Au à 2,07 g/t Au (hausse de 7 %) et des Ressources Minerales Inférées de 4,4 Moz Au à 1,95 g/t Au (hausse de 92 %).
Le site comprend deux gisements : le Wenot, avec 970 000 oz Au en catégorie Indiquée (augmentation de 16 %) et 3,7 M oz Au en catégorie Inférée (augmentation de 130 %), et le Gilt Creek, avec 1,15 M oz Au Indiquées et 665 000 oz Au Inférées. La MRE repose sur une hypothèse de prix de l’or plus élevée, à 2 500 $/oz, permettant des seuils de coupure plus bas et une augmentation du nombre total d’onces.
La société prévoit de poursuivre des forages intensifs pour accroître les ressources et avancer vers une étude de faisabilité d’ici fin 2026. Le projet bénéficie d’une infrastructure existante, notamment un accès routier, une piste d’atterrissage et des sites de rejets déjà établis.
Omai Gold Mines (OTCQB: OMGGF) hat eine deutliche Erhöhung der Mineralressourcenschätzung (MRE) für das zu 100 % im Besitz befindliche Omai-Goldprojekt in Guyana bekanntgegeben. Das Update weist Indizierte Mineralressourcen von 2,1 Moz Au bei 2,07 g/t Au (plus 7 %) und Inferred Mineralressourcen von 4,4 Moz Au bei 1,95 g/t Au (plus 92 %) aus.
Das Projekt umfasst zwei Lagerstätten: die Wenot-Lagerstätte mit 970.000 Unzen Gold in der Kategorie Indicated (plus 16 %) und 3,7 Mio. Unzen Gold in der Kategorie Inferred (plus 130 %), sowie die Gilt Creek-Lagerstätte mit 1,15 Mio. Unzen Indicated und 665.000 Unzen Inferred. Für die MRE wurde ein höherer Goldpreis von 2.500 $/oz angesetzt, was niedrigere Cut‑off‑Grade und eine höhere Gesamtunze ermöglichte.
Das Unternehmen plant, die aggressive Bohrkampagne fortzusetzen, um die Ressourcen zu erweitern und bis Ende 2026 eine Wirtschaftlichkeitsstudie (Feasibility Study) anzustreben. Das Projekt profitiert von vorhandener Infrastruktur wie Straßenanbindung, einer Landebahn und bereits etablierten Rückhaltebecken.
The Upside
- Big gains in resources. Inferred Resources soar 92% to 4.4M oz Au.
- High-grade gold maintained averaging 2.07 g/t Au Indicated and 1.95 g/t Au Inferred.
- Existing infrastructure already in place, lowering development costs (roads, airstrip, tailings sites).
- Located in Guyana, a country ranked as a solid mining investment jurisdiction.
- Further expansion potential in multiple directions.
- Past production success of 2.4M oz highlights mining viability.
The Risks
- Lower average gold grades due to applying a reduced cut-off grade even with a higher gold price assumption.
- Significant new Inferred resources needing further drilling to be upgraded.
- Underground mining will need major capital investment.
- Requires further drilling before advancing to Feasibility Study in 2026.
08/25/2025 – 11:41 AM
Toronto, Ontario–(Newsfile Corp. – August 25, 2025) – Omai Gold Mines Corp. (TSXV: OMG) (OTCQB: OMGGF) (“Omai Gold” or the “Company”) is making headlines with an updated Mineral Resource Estimate (“MRE”) for its 100%-owned Omai Gold Property in Guyana. The headline? A substantial expansion of the Wenot Deposit, incorporating the already significant Gilt Creek Deposit. For the Wenot Mineral Resource Estimate (“MRE”), the Inferred MRE exploded 130% to 3,717,000 oz grading 1.82 g/t Au, contained in 63.4 million tonnes (“Mt”), and the Indicated MRE increased 16% to 970,000 oz grading 1.46 g/t Au, contained in 20.7 Mt.
KEY TAKEAWAYS:
The Omai Property is now recognized as one of the premier gold projects in Guyana with two orogenic gold deposits: the shear-hosted Wenot Deposit and the adjacent intrusive-hosted Gilt Creek Deposit (Figure 1), with a combined updated MRE (over the February 2024 MRE) of:
- 2,121,000 ounces of gold (Indicated MRE), a 7% increase, averaging 2.07 g/t Au in 31.9Mt &
- 4,382,000 ounces of gold (Inferred MRE), a 92% increase, averaging 1.95 g/t Au in 69.6Mt
Wenot Deposit (a constrained pit and underground approach is applied)
- 970,000 oz of gold in 20.7Mt (Indicated), a 16% increase in ounces over the Feb 2024 MRE
- 3,717,000 oz of gold in 63.4Mt (Inferred), a 130% increase in ounces
- 1.46 g/t Au grade of Indicated MRE, a 1.4% decrease*
- 1.82 g/t Au grade of Inferred MRE, an 8.5% decrease*
- *Increased gold price assumption to $2,500/oz from $1,850/oz allowed cutoff lower to 0.30 g/t Au from 0.35 g/t Au, resulting in lower average grades however increased ounces
- ~60% above 350m depth from surface (Figure 2a)
- ~30% of Wenot MRE is west of the historical open pit, an area considered to be well suited to initial mining (Figure 2b)
- Expansion potential is evident along a minimum 2.5 km length of the host Wenot shear corridor, including within, adjacent to, below, and along strike
Gilt Creek Deposit (an underground mining approach is applied)
- 1,151,000 ounces of gold (Indicated) averaging 3.22 g/t Au, in 11.1Mt (Feb 2024 MRE)
- 665,000 ounces of gold (Inferred) averaging 3.35 g/t Au, in 6.2Mt (Feb 2024 MRE)
- Hosted within a 500m by 300m quartz diorite intrusive “Omai stock” that produced 2.4 million ounces of gold (1993 to 2005) from the upper 250m
- Located 500m north of the Wenot Deposit and below the past-producing Fennel open pit
- Characterized by very wide sub-horizontal zones of gold mineralization (Figure 5)
- Open to depth and holds demonstrated potential for lateral expansion
Elaine Ellingham, President & CEO commented, “We are pleased to be delivering yet another very substantial increase to the Mineral Resource Estimate for our Omai Gold Project in Guyana. This firmly positions Omai as one of the top two largest gold projects in Guyana. Omai has many benefits as a brownfields project, not the least of which is road access (mostly paved), an airstrip, a cleared site, established tailings sites and known past production parameters. In addition to these clear advantages, Guyana has proven to be a favourable jurisdiction, now recognized by the Fraser Institute as the 9th best jurisdiction for mining investment in the world, with a Government and people that are supportive of large-scale mine development. This updated Mineral Resource Estimate reinforces the potential for accelerated large-scale mine re-development at Omai, a project that continues to deliver superior value creation for all stakeholders. With each successive milestone it becomes clearer that Omai has the potential to be a multi-decade world-class gold mining operation.
Notwithstanding this large gold Mineral Resource Estimate we announced today, we still see very significant potential to further expand the gold zones at both the Wenot and the Gilt Creek Deposits. We will continue to aggressively drill to increase these Mineral Resources and to upgrade the Inferred Mineral Resource Estimate, in order to advance the project towards a Feasibility Study later in 2026. Two drills are currently turning on nearby known gold occurrences, exploring for near-surface satellite deposits, while the third drill continues on a deep hole (25ODD-122) that drilled across the Gilt Creek Deposit and continues, with the goal of testing the blue sky depth potential of the adjacent Wenot Deposit.”
Figure 1. 3D Model of Wenot Shear-Hosted Deposit and Gilt Creek Intrusion-Hosted Deposit
To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/8712/263731_7c6565f1f490ebe2_001full.jpg
Details of the Mineral Resource Estimate for both the Wenot (updated) and Gilt Creek Deposits are presented in Table 1. The increase in the updated Wenot MRE over the previous February 2024 MRE is detailed in a comparison in Table 2. Notes accompanying the 2025 MRE are shown below Table 2, summarizing the economic and technical assumptions, which include a gold price of US$2,500 per ounce and metallurgical recoveries of 92% (consistent with historical actuals).
Table 1. 2025 (August) Mineral Resource Estimates
| Indicated Resources | Inferred Resources | ||||||||
| Resource Area | Mining Method |
Tonnes (k) |
Au (g/t) |
Au (koz) |
Tonnes (k) |
Au (g/t) |
Au (koz) | ||
| GILT CREEK (1.5 g/t Cut-Off) |
Underground | 11,123 | 3.22 | 1,151 | 6,186 | 3.35 | 665 | ||
| WENOT Pit (0.20 & 0.30 g/t Cut-Off) | Open Pit | 20,713 | 1.46 | 969 | 62,299 | 1.78 | 3,565 | ||
| WENOT Out-of Pit (1.5 g/t Cut-Off) |
Underground | 16 | 2.14 | 1 | 1,147 | 4.13 | 152 | ||
| Total Mineral Resource Estimate | 31,852 | 2.07 | 2,121 | 69,632 | 1.95 | 4,382 | |||
|
Wenot Pit-Constrained Mineral Resource Estimate by Mineralization Type |
|||||||||
| WENOT | Saprolite & Alluvium | Open Pit 0.20 g/t Cut-Off |
1,819 | 0.94 | 55 | 417 | 1.69 | 23 | |
| Fresh Rock & Transition | Open Pit 0.30 g/t Cut-Off |
18,894 | 1.51 | 914 | 61,882 | ||||
