McFarlane Lake Mining Ltd.: Drilling at Juby Gold Project Intersects 95.4 metres(m) at 1.36 g/t gold

Press Release

Toronto, Canada – March 2, 2026 – McFarlane Lake Mining Limited (“McFarlane” or the “Company”) (CSE: MLM, OTC: MLMLF, FRA: W2Z) is pleased to announce further results from its diamond drilling exploration campaign being conducted on its 100%-owned Juby Gold Project, located west of Gowganda, Ontario, within the southern part of the “Abitibi Greenstone Belt”. Drilling was initiated in December 2025 on the property and commenced at the Company’s 826 Zone and has now moved to the Golden Lake Zone, see Figure 1.

Highlights

• Drill hole GL 26-71 at Golden Lake has intersected 1.36 g/t gold over 95.4 metres, this includes 55.4 metres of 1.96 g/t gold and 9.9 metres of 3.22 g/t gold see Figure 2 and Tables 1 and 2.
• Drill hole GL 26-71 now expands the envelope of mineralization, which was outside the last mineral resource estimate (effective date September 29, 2025, see note below). Some assays on this hole are still pending. Another diamond drill hole, 100 metres to the southwest (GL 76-72), is currently being drilled to test an extension of this mineralization along strike. An additional 13 holes are planned at the Golden Lake Zone along strike in a southeast/northwest corridor.
• Drilling at 826 Zone has expanded the gold mineralization envelope, now stretching some 300 metres along strike. See Figures 3 and 4 and Tables 1 to 4.

“What we have intersected so early in the drill program is extremely encouraging”, said Mark Trevisiol, CEO and Chairman of McFarlane, adding, “The intersection at Golden Lake significantly widens the mineralized envelope that defines the current mineral resource estimate. The additional discovery of gold at our 826 Zone introduces another mineralized area on the project, some 1.5 kilometres away from the existing mineral resource estimate. These discoveries further support how untested the Juby Gold Project remains with the potential to add significant gold mineralization with the aim of expanding gold resources.”

To help expedite drilling, McFarlane plans to add an additional diamond drill at site. The second drill is currently planned to commence drilling in the second week of March 2026. Drilling will focus on the Golden Lake deposit over the next 6 to 8 weeks, with subsequent drilling at the Juby deposit and potentially further drilling at the 826 Zone.

In parallel, environmental baseline study work continues at site. Groundwater wells will be drilled at site around the Juby deposit in March. This work is a necessary part of gathering technical information for submittal to Ontario government ministries to support McFarlane’s future application of extracting a bulk sample from the Juby deposit.

Drilling being conducted at site is contracted through two separate firms each having a business partnership with 2 of the 3 first nation communities who have territorial rights on the property.  There are three First Nation communities recognized as having territorial rights within the Juby Gold project, they include Matachewan First Nation, Temagami First Nation and Atikameksheng Anishnawbek First Nation.

Figure 1 – Juby Gold Project – Plan View of Exploration Drilling program showing location of drill holes at Golden Lake, Juby and 826 Zones

Figure 2 – Golden Lake Deposit Intersection – section looking Northwest

Figure 3– 826 Zone gold mineralized envelope – looking East

Figure 4 – 826 Zone – section looking Northwest

Table 1 – Golden Lake and 826 Zone intercepts

Table 2 – Golden Lake and 826 Zone drill collar co-ordinates

Table 3 – 826 Zone collar data (previously reported- January 22, 2026)

Table 4 – 826 Zone composite data (previously reported – January 22, 2026)

Figure 5 shows the area of planned drilling on the Golden Lake and Juby deposits in the upcoming weeks. A total of 13,000 metres of drilling is currently planned in this phase of exploration.

Figure 5 – Planned area of exploration for Golden Lake and Juby Resource areas

Quality Assurance and Quality Control

The drill core samples collected by McFarlane Lake Mining and described in this news release were placed in core boxes by the drill crew contracted by the Company. Core was then transported by McFarlane personnel to a secure processing facility. The core is then reviewed with core metreage blocks checked to verify core integrity, geologically logged, and samples marked. Core samples are cut in half, with one half remaining in the box and the other inserted into a clean plastic bag with a sample tag. Certified reference materials are inserted into the sample stream at a rate of no less than 10%. Samples are then transported in secure sealed bags with security tags for preparation and assay by MSA Labs in Timmins, Ontario, a certified lab with AC89, IAS accreditation and compliance with ISO/IEC standard 17025:2017.

Samples reported are crushed at the lab in their entirety to 70% passing 2 mm, with one 300 to 500 g subsample split and placed into a jar for analysis by photon assay. Gold concentration results are then recorded with reference to each sample tag number.

About McFarlane Lake Mining Limited

McFarlane Lake Mining Limited is a Canadian gold exploration company focused on advancing its flagship Juby Gold Project, located near Gowganda, Ontario, within the established Abitibi Greenstone Belt. The Juby Gold Project hosts a current (effective September 29, 2025) NI 43-101 compliant Mineral Resource Estimate (“MRE”) of 1.01 million ounces of gold in the Indicated category at an average grade of 0.98 g/t gold (31.74 million tonnes) and an additional 3.17 million ounces of gold in the Inferred category at an average grade of 0.89 g/t gold (109.48 million tonnes). The estimate was calculated using a long-term gold price of US$2,500 per ounce, applying cut-off grades of 0.25 g/t gold for open pit and 1.85 g/t gold for underground resources.

A sensitivity analysis completed at a higher gold price of US$3,750 per ounce resulted in an Indicated Mineral Resource of 1.20 million ounces grading 0.94 g/t gold (39.51 million tonnes) and an Inferred Mineral Resource of 4.23 million ounces grading 0.85 g/t gold (154.50 million tonnes) applying cut-off grades of 0.25 g/t gold for open pit and 1.15 g/t gold for underground resources.

The independent MRE was prepared by BBA E&C Inc. in accordance with National Instrument 43-101 – Standards of Disclosure for Mineral Projects. The full technical report supporting the resource estimate was filed on SEDAR+ on November 21, 2025, and is also available on the Company’s website www.mcfarlanelakemining.com.

McFarlane is actively executing an exploration drilling program as detailed herein, and additional technical studies at the Juby Project to further evaluate and advance this large-scale gold system.

In addition to Juby, McFarlane holds a portfolio of 100%-owned gold assets across Ontario, including the past-producing McMillan Gold Mine and Mongowin properties located approximately 70 kilometres west of Sudbury and the Michaud/Munro properties located 115 kilometres east of Timmins. McFarlane Lake Mining Limited is a reporting issuer in Ontario, British Columbia, and Alberta.

Readers are cautioned to refer to the “Cautionary Statement on Mineral Resources” and all other disclaimers included in this news release for important information regarding the limitations and verification status of the data presented above and elsewhere herein.

To learn more, visit: https://mcfarlanelakemining.com/.

Additional information on McFarlane can be found by reviewing its profile on SEDAR+ at www.sedarplus.com.

Qualified Person

The scientific and technical information disclosed in this news release was reviewed and approved by Bob Kusins, P.Geo, a consultant to the Company and Qualified Person under National Instrument 43-101. Technical information was also reviewed by Mark Trevisiol, P.Eng., an officer of McFarlane and a Qualified Person under National Instrument 43-101.

Further Information

For further information regarding McFarlane, please contact:

Mark Trevisiol,
Chief Executive Officer, President and Director
McFarlane Lake Mining Limited
(705) 665-5087
mtrevisiol@mcfarlanelakemining.com

Kaitlin Taylor,
Investor Relations
McFarlane Lake Mining  Limited
(778) 887-6861
investors@mcfarlanelakemining.com

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