Premium Nickel Resources Ltd. (TSX-V: PNRL) announces more high-grade assay results for a further six holes from drilling at its past-producing nickel-copper-cobalt sulphide Selebi North underground mine in Botswana. Drill core photos for all highlighted holes released to date, including the holes reported herein, are accessible by Clicking Here and can also be found on the Company’s website at www.premiumnickel.com. An initial Mineral Resource Estimate for the Selebi Mine referred to in this release and prepared in accordance with National Instrument 43-101 – Standards of Disclosure for Mineral Projects which was disclosed on August 8, 2024 can also be found on the Company’s website and on SEDAR+ (www.sedarplus.ca) under the Company’s issuer profile.

Assay highlights include:

• SNUG-24-123 (South Limb): infill drilling targeting re-classification of Inferred to Indicated Resources)
  • 13.85 metres of 6.08% CuEq or 2.95% NiEq (1.29% Cu, 2.33% Ni, 0.12% Co)

• SNUG-24-131 (South Limb): infill drilling targeting re-classification of Inferred to Indicated Resources)
  • 7.25 metres of 7.48% CuEq or 3.63% NiEq (1.89% Cu, 2.71% Ni, 0.11% Co)
    incl. 1.80 metres of 10.27% CuEq or 4.99% NiEq (1.86% Cu, 4.09% Ni, 0.14% Co)

• SNUG-24-133 (between N2 and N3): infill drilling targeting re-classification of Inferred to Indicated Resources)
  • 8.20 metres of 5.41% CuEq or 2.63% NiEq (2.20% Cu, 1.56% Ni, 0.08% Co)

Keith Morrison, CEO of PNRL, commented: “Together with these assays, we have reported on approximately 13,930 meters drilled at Selebi North since the MRE cut-off date of June 30, 2024. The ongoing exploration at the Selebi North deposit consistently demonstrates exceptional high-grade polymetallic assay results including cobalt. In addition to continued resource drilling, the Company is progressing on engineering trade-off studies that will support our first NI 43-101 compliant economic model. These studies include metallurgical workflow improvement, testing the application of X-ray transmission ore-sorting for underground pre-concentration to optimize the lifting capacity at the Selebi Mines, and mining methods and options to increase the throughput from both the Selebi North and Selebi Main deposits.”

Assay results are provided below in Table 1 for SNUG-24-123, 125, 130, 131, 132 and 133; hole collar details are provided in Table 2.

True width of mineralization was estimated using the wireframe as part of the Mineral Resource Estimate (see news release August 8, 2024). Figures 1 through 3 show the location of the holes relative to the Selebi Mines Mineral Resource Estimate and underground infrastructure.

Table 1: Assay Results Selebi North Deposit

¹Length refers to drillhole length.
²True thickness is estimated using the Mineral Resource Estimate wireframe.
³Co is not included in the MRE as cobalt analyses are not consistently available throughout the deposit.
⁴ CuEq was calculated using the formula CuEq=Cu+2.06*Ni assuming long-term prices of US$10.50/lb Ni and US$4.75/lb Cu nickel and copper recoveries of 72.0% and 92.4% respectively, derived from metallurgical studies which consider a conceptual bulk concentrate scenario.
⁵ NiEq was calculated using the formula NiEq=Ni+0.485*Cu

Table 2: Drill Collar Information Selebi North Deposit

Drilling and BHEM Continues

As of October 20, 2024, a total of 58,765 metres in one hundred and fifty (150) drillholes have been drilled from eight underground drill bays with three of those drillholes currently in-progress. Drilling totaling 28,781 meters across 65 completed holes, with 3 more in progress, is not included in the MRE. This new drilling is a combination of infill and exploration drilling to follow the extension of the mineralization down dip and down plunge.

New assay results not captured in the MRE will be published as they are received and verified by the Company. Due to the extensive drilling that has intersected mineralization, the Company has released assay results only for the most significant intercepts. The results of these new drill holes will be included in a future Mineral Resource update, with the goal of both expansion and reclassification of the MRE. It is PNRL’s ambition that these pending results combined with future drilling would support the progression towards a Pre-feasibility Study.

Quality Control

The underground drilling program is being carried out through an agreement with Forage Fusion Drilling Ltd. of Hawkesbury, Ontario, Canada, who have provided three Zinex U-5 drills for purchase and training of local operators. Drill core samples are BQTK (40.7 mm diameter). All samples are ½ core cut by a diamond saw on site. Half of the core is retained for reference purposes. Samples are generally 1.0 to 1.5 metre intervals or less at the discretion of the site geologists. Sample preparation and lab analysis was completed at ALS Chemex in Johannesburg, South Africa. Commercially prepared blank samples and certified Cu/Ni sulphide analytical control standards with a range of grades are inserted in every batch of 20 samples or a minimum of one set per sample batch. Analyses for Ni, Cu and Co are completed using a peroxide fusion preparation and ICP-AES finish (ME-ICP81).

Holes are numbered as follows: SNUG (Selebi North Underground) + year + hole number starting at 013.

BHEM Surveys

The BHEM surveys at Selebi utilize the Crone PEM system operated by local Batswana staff. Survey data is collected using a 3 component fluxgate probe collecting full waveform data. Surveys have been collected using timebases between 50 and 1000ms (0.25 Hz to 5 Hz). The data has been processed to a calculated residual step response to better quantify the conductive sources. This added processing has proven to be invaluable because of the size of the highly conductive mineralized system.

Qualified Person

The scientific and technical content of this news release has been reviewed and approved by Sharon Taylor, Vice President Exploration of the Company, who is a “qualified person” for the purposes of National Instrument 43-101.

Technical Report

The MRE on the Selebi Mine is supported by the Technical Report. Reference should be made to the full text of the Technical Report for the assumptions, qualifications and limitations set forth therein, a copy of which is available on SEDAR+ (www.sedarplus.com) under PNRL’s issuer profile.

About Premium Nickel Resources Ltd.

PNRL is a mineral exploration and development company that is focused on the redevelopment of the previously producing nickel, copper and cobalt resources mines owned by the Company in the Republic of Botswana.

PNRL is committed to governance through transparent accountability and open communication within our team and our stakeholders. Our skilled team has worked over 100 projects collectively, accumulating over 400 years of resource discoveries, mine development and mine re-engineering experience on projects like the Company’s Selebi and Selkirk mines. PNRL’s senior team members have on average more than 20 years of experience in every single aspect of mine discovery and development, from geology to operations.

Figure 1: Selebi North Location of Reported Drill Holes with 2024 Mineral Resource Estimate, Underground Infrastructure and Modeled BHEM Plates.

Figure 2: Selebi North Location of Reported Drill Holes with 2024 Mineral Resource Estimate and Underground Infrastructure

Figure 3: Detailed view showing location of drillholes reported and mentioned in this release with 2024 Mineral Resource Estimate, Underground Infrastructure and Modeled BHEM Plates.