Nova Minerals Ltd. Confirms Higher-Grade Starter Pit Potential within the 4.05 Moz Pit-Constrained Korbel Gold Deposit

12:30 Uhr  |  GlobeNewswire

Nova Minerals Ltd. ("Nova" or the "Company") (NASDAQ: NVA) (ASX: NVA) (FRA: QM3) ) is pleased to announce shallow reverse circulation drilling results within a proposed starter pit at the Korbel Main Deposit within the Company's flagship Estelle Gold and Critical Minerals Project (Estelle or the Project), located in the prolific Tintina Gold Belt in Alaska.

Highlights

• • 2025 shallow RC drilling defines a near-surface higher-grade core at the bulk-tonnage Korbel Main Deposit, with grades up to 1.2 g/t Au.
  • Results indicate a pilot starter pit approximately 250m long by 80m wide may be suitable within Korbel Main, with drilling identifying a higher-grade core within its bulk-tonnage pit-constrained resource of 275 Mt @ 0.3 g/t Au for 2.70 Moz Au (Table 3).
  • Korbel Main forms part of the broader Korbel Gold Deposit, which includes the Cathedral Deposit, currently hosting a pit-constrained 1.35 Moz Au resource (150 Mt @ 0.3 g/t Au - Table 3).
  • With gold prices currently around US$4,600/oz, the combined 4.05Moz Au (Table 3) Korbel bulk-tonnage pit-constrained resource is anticipated to materially contribute to Project economics under evaluation in the ongoing feasibility study (FS).
  • Highlights from the 2025 shallow, closely spaced, infill 14-hole reverse circulation (RC) drill program at Korbel include (Table 1 and Figure 4):
    
    
    • KBRC_001
      
      
      • 19m @ 0.6 g/t Au from surface including;
      • 6m @ 1.0 g/t Au from 9m
        
        
    • KBRC_006
      
      
      • 25m @ 0.5 g/t Au from 1m including;
      • 8m @ 0.8 g/t Au from 13m
        
        
    • KBRC_010
      
      
      • 9m @ 1.2 g/t Au from 1m
        
        
    • KBRC_011
      • 26m @ 0.7 g/t Au from 1m
        
        
    • KBRC_013
      • 22m @ 0.7 g/t Au from surface including;
      • 9m @ 1.1 g/t Au from surface
        
• While RC drilling is significantly shallower than diamond core drilling, with average hole depth ~20m, the results highlight the potential for a pilot pit to further test ore sorting, building on previous work where 0.4 g/t Au material was successfully upgraded to over 6 g/t Au - more than a tenfold increase - potentially reducing processing costs and increasing mine production (ASX Announcement: 15 March 2021).
  

• The 2025 RC drill program focused on adding resource confidence to intercepts identified in previous diamond drilling campaigns, including:
  
  
  • KBDH-002: 540m @ 0.3 g/t Au from 2m, incl. 158m @ 0.5 g/t Au (ASX Announcement: 22 June 2020)
    
  • KBDH-004: 517m @ 0.3 g/t Au from 1m, incl. 106m @ 0.7 g/t Au (ASX Announcement: 14 July 2020)
  • KBDH-012: 429m @ 0.6 g/t Au from (ASX Announcement: 19 August 2020)
    
• To view a commentary video from Nova's CEO, Christopher Gerteisen, discussing the significance of these latest drill results, please click here.
  
• All drill results from Korbel have now been reported.
• Results from the extensive soil and rock chip surface samples taken from across the project area in 2025 will also be reported once received and processed.
  

Nova CEO, Mr Christopher Gerteisen, commented:

"We are pleased with the 2025 RC drilling results at Korbel Main, which have defined a near-surface, higher-grade core. The results highlight the potential for a pilot starter pit within Korbel Main's 2.7 Moz bulk-tonnage pit-constrained resource and demonstrate strong potential to test ore sorting on a larger scale, building on previous work where material was upgraded more than tenfold, potentially lowering processing costs and increasing gold production.

"At current gold prices of around US$4,600/oz, the combined 4.05 Moz Korbel pit-constrained resource is expected to play a key role in the ongoing Estelle Project PFS, with additional material currently outside the US$2,000/oz pit shell anticipated to be included in the in-pit resource.

"We look forward to keeping the market informed as Korbel continues to progress towards production.

2025 Korbel Drilling Summary

A total of 14 RC holes were drilled at the Korbel Main Deposit (Figure 3) to provide infill definition to the core of the existing 2.7 Moz (275 Mt @ 0.3 g/t Au) pit-constrained resource (Table 3) for a potential higher-grade starter pit. Despite challenges from a shallow water table, sufficient sampling was achieved to increase confidence in the near-surface higher-grade mineralization. This will support planning for a potential early-stage pilot pit (~250m long x 80m wide x 20m deep) to produce ore for further ore sorting analysis (Figure 3). With gold concentrated in arsenopyrite-bearing quartz veins, previous test work has shown that Korbel ore is highly amenable to ore sorting, with the potential to upgrade material from 0.4 g/t Au to over 6 g/t Au, which could reduce processing costs and increase mine production (ASX Announcement: 15 March 2021).

Although grades at Korbel are lower than at RPM, it remains a significant bulk-tonnage deposit, and with gold near US$4,600/oz, Korbel is expected to make a meaningful contribution to the economics of the ongoing FS.

Figure 1 below shows a typical RC drilling site at Korbel. At each site, -60 degree holes were drilled at 230 and 050 azimuths, crosscutting the dominant northwest structural trend of the steeply-dipping sheeted veins.

Figure 1. Korbel RC drill site

All 2025 RC holes targeted the granodiorite of the main Estelle pluton, which is crosscut by mineralized quartz veins. Nova believes these results highlight a zone of increased vein density, the main driver of gold mineralization

RC chips were preserved in chip trays for microscope analysis, and some notable chalcopyrite, pyrite, and arsenopyrite were observed (Figure 2).

Figure 2. Representative Korbel RC chip sample from the 2025 drilling showing chalcopyrite, pyrite, and arsenopyrite

Figure 3 shows a plan view of the RC drill holes and potential higher-grade starter pit area. Figure 4 shows a cross section of two of the intercepts at KBDH-013 and KBDH-014.

Figure 3: Plan view of 2025 Korbel RC drilling showing the potential starter pilot pit area

Figure 4. KBRC-013 and -014 drill Intercepts (050 azi)

Table :1 Significant intercepts

Table 2: Drill hole details

Table 3: S-K 1300 compliant pit-constrained mineral resource estimate

S-K 1300 compliant pit-constrained resource at a US$2,000/oz gold price as per the S-K 1300 Initial Assessment Technical Report Summary on the Estelle Gold Project, Alaska, USA, with an effective date of January 31, 2024. 5.2 Moz refers to the measured, indicated , and inferred resources on 100% basis, 85% attributable to Nova Minerals (4.4 Moz).

Note: The Mineral Resource Estimates (MRE) referenced in this press release differ from those disclosed in the ASX announcement. This press release reports the S-K 1300 pit-constrained resource, while the ASX announcement reports the JORC global resource.

Upcoming Milestones

• Drill results from Stibium
• Further results and potential new discoveries from the 2025 surface exploration mapping and sampling program
• Material FS test-work results as they become available
• Updated MRE
• Winter trail mobilization of heavy equipment
• Airborne geophysical surveys to commence in the spring of 2026
• Antimony phase 1 project updates
• Metallurgical test work ongoing
• Environmental test work ongoing
• West Susitna access road updates

Qualified Persons

Vannu Khounphakdee, Professional Geologist and member of Australian Institute of Geoscientists contracted by Nova Minerals to provide geologic consulting services. Mr. Khounphakdee holds a Master of Science in Mine Geology and Engineering. He is a qualified person with at least 5 years experience with this type of project. By reason of education, affiliation with a professional association, and past relevant work experience, Mr. Khounphakdee fulfills the requirements of Qualified Person (QP) for the purposes of SEC Regulation SK-1300 for data QA/QC checks relevant to this announcement.

Hans Hoffman is a State of Alaska Certified Professional Geologist contracted by Nova Minerals to provide geologic consulting services. Mr. Hoffman is a member of the American Institute of Professional Geologists and holds a Bachelor of Science degree in Geological Engineering with a double major in Geology and Geophysics. He is a qualified person with at least 5 years of experience with these types of projects. By reason of education, affiliation with a professional association, and past relevant work experience, Mr. Hoffman fulfills the requirements of Qualified Person (QP) for the purposes of SEC Regulation SK-1300 for the technical information presented in this announcement.

Christopher Gerteisen, Chief Executive Officer of Nova Minerals, is a Professional Geologist and member of Australian Institute of Geoscientists, and has supervised the preparation of this news release and has reviewed and approved the scientific and technical information contained herein. Mr. Gerteisen is a "qualified person" for the purposes of SEC Regulation S-K 1300.

Data Verification

Where possible each 1.52m to 3.05m RC interval was riffle split (dry) to obtain 3-5 kg samples at the drill site, these samples were crushed to achieve >90% passing a 2mm sieve and split down to 225 g to 275 g samples at Nova's on-site prep facility. Due to the presence of a water table, wet samples were bulk sampled at the drill and placed in a drying facility. After drying, samples were crushed to achieve >90% passing a 2mm sieve and split down to 225 g to 275 g samples. Samples were then sent to ALS Fairbanks for additional prep and chemical analysis. Field duplicates (RC) for recent data were collected every 1 in 20 samples at the same time using the same method (riffle split) as the parent sample. Blank material was inserted 1 in 40 samples. Standard Reference Material (SRM) was inserted 1 in 20 samples. Three different SRMs at three different grades levels were used. Samples are tested for gold using ALS Fire Assay Au-ICP21 technique. This technique has a lower detection limit of 0.001 g/t with an upper detection limit of 10 g/t. If samples have grades in excess of 10 g/t then Au-GRA21 is used to determine the over detect limit. Au-GRA21 has a detection limit of 0.05 g/t and an upper limit of 10,000 g/t.

About Nova Minerals Limited

Nova Minerals Limited is advancing one of the world's largest undeveloped gold deposits into production and securing a US domestic supply of the critical mineral antimony. The Company is focused on the exploration and development of the Estelle Gold and Critical Minerals Project, located in Alaska, a tier-one mining jurisdiction.

Estelle hosts two defined multi-million-ounce gold resources, and more than 20 prospects distributed along a 35-kilometre mineralized trend, in the prolific Tintina Gold Belt, a province which hosts a >220 million ounce (Moz) documented gold endowment and some of the world's largest gold mines and discoveries including, Kinross Gold Corp.'s Fort Knox Gold Mine. In parallel, Nova is advancing its critical minerals strategy, fully-funded by a US$43.4 million U.S. Department of War award to develop a domestic antimony supply chain, targeted for production in late 2026/2027.

Further discussion and analysis of the Estelle Project is available through the interactive Vrify 3D animations, presentations, and videos, all available on the Company's website. www.novaminerals.com.au

Forward Looking Statements

This press release contains "forward-looking statements" that are subject to substantial risks and uncertainties. All statements, other than statements of historical fact, contained in this press release are forward-looking statements. Forward-looking statements contained in this press release may be identified by the use of words such as "anticipate," "believe," "contemplate," "could," "estimate," "expect," "intend," "seek," "may," "might," "plan," "potential," "predict," "project," "target," "aim," "should," "will" "would," or the negative of these words or other similar expressions, although not all forward-looking statements contain these words. Forward-looking statements are based on Nova Minerals Limited's current expectations and are subject to inherent uncertainties, risks and assumptions that are difficult to predict. Further, certain forward-looking statements are based on assumptions as to future events that may not prove to be accurate. These and other risks and uncertainties are described more fully in the section titled "Risk Factors" in the final prospectus related to the public offering filed with the Securities and Exchange Commission. Forward-looking statements contained in this announcement are made as of this date, and Nova Minerals Limited undertakes no duty to update such information except as required under applicable law.

For Additional Information Please Contact

Investor Relations:
Dave Gentry, CEO
RedChip Companies, Inc.
Phone: 1-407-644-4256
Email: NVA@redchip.com

Nova Minerals:
Craig Bentley
Director of Finance & Compliance & Investor Relations
E: craig@novaminerals.com.au
M: +61 414 714 196