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Norsemont Mining Inc. - Announces Precious-metal Assay Results

Drill Results

NORSEMONT MINING INC.

Suite 500, 666 Burrard Street

Vancouver, BC, V6C 3P6

Phone: 778-240-7724

NORSEMONT DRILLS 94 METERS AT 1.26 G/T AU AND 109 METERS

AT 1.09 G/T AU BOTH HOLES STARTING AT SURFACE

Vancouver, B.C., February 24, 2026 – Norsemont Mining Inc. (CSE: NOM, OTC: NRRSF,

FWB: LXZ1) (“Norsemont” or the “Company”) is pleased to announce precious-metal assay

results for three (3) of the Phase 3 drill holes at it’s the 100%-owned Choquelimpie high-

sulfidation gold-silver-copper project in northern Chile. Seven (7) holes of the Phase 3 drill

program have been completed, for a total of 1,650 meters. Norsemont is planning to resume drilling

operations in April 2026.

The drilling has provided important data for the extension of higher-grade zones, to depth. Drill

samples for the complete drill program have been submitted to the laboratory. Results have been

received for three (3) holes, although some intervals with initial “over-limit” results remain to be

re-assayed. Partial results also have been received for additional holes. The balance of assays are

expected to be received later this quarter.

Highlights

• MV25-DD01 intersected 109 meters at 1.09 g/t, including 45 meters at 1.21 g/t Au.

• MV25-DD02 intersected 94 meters at 1.26 g/t Au, including 31 meters at 1.79 g/t Au.

• MV25-DD03 intersected 33 meters at 0.87 g/t Au.

Management Comments

Norsemont CEO Marc Levy commented:

“We are pleased with the positive gold results from the first three holes of the 2025 Phase 3 drill

program. These long intercepts are above the current sulfide resource grade, highlighting the

potential to upgrade the resource. We are also encouraged by t he geological team’s growing

understanding of the controls on higher-grade mineralization. The presence of anomalous base-

metal mineralization is particularly intriguing, and we look forward to receiving the re -assay

results and integrating those data into the broader Choquelimpe geological model. These strong

results add to our increasing confidence in the potential for substantial high-grade gold zones at

depth and along strike beneath the existing open-pit resource. We look forward to providing further

updates as results become available.”

The Phase 3 Drill Program

The Phase 3 drill campaign at Choquelimpie has successfully evaluated the down-dip

extensions of higher-grade gold mineralization (>1 gram/tonne Au) hosted within hydrothermal

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breccia zones (Figure 1). Seven holes (7) core holes, for a total of approximately 1650 meters

have been completed. The details of this program are shown on Figure 1 and Table 1.

Figure 1: Phase 3 Drill Hole Location Map

Table 1: Phase 3 Drill Hole Collar File

Hole ID N E Elevation A zimuthInclinationLengthMethod

M V25-DD017,975,980 473,285 4694 275 70 300 core

M V25-DD027,975,980 473,285 4694 180 80 239 core

M V25-DD037,975,811 472,622 4735 180 60 275 core

M V25-DD047,975,499 472,756 4832 360 60 200 core

M V25-DD057,975,602 472,463 4761 360 60 221 core

M V25-DD067,976,100 473,352 4687 180 50 225 core

M V25-DD077,975,602 472,463 4761 180 60 203 core

Choquelimpe 2025 Core Drill Hole Collar File

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All split drill core samples for the drilling have been shipped to Activation Geological Services

SpA for geochemical analysis. The samples have been prepared at the AGS facility located in

Antofagasta Chile and are being analyzed at the AGS geochemical laboratory, located at

Coquimbo, Chile. The laboratory has an ISO 17025 certification. The gold grades are being

determined by fire assay (AGS code AU-FA30). Drill intervals that have some degree of oxidation

are also being analyzed by the cyanide-soluble gold method (AUCN).

The samples are also being analyzed for 60 elements, including silver, by mass spectrometer (MS

TD60). In addition, silver and specific base metals are being re-assayed by atomic absorption for

samples where the initial value for a particular element is greater than the limit of accuracy (“over-

limit”) for that method. The overlimit value for: silver is 100 parts per million (ppm), copper is

10,000 ppm, lead is 5,000 ppm and zinc is 10,000 ppm.

Standard and blank samples have been inserted at a frequency of one each for every 20 drill

samples.

Fire-assay gold drill intercepts are summarized below for the initial three holes of the Phase 3 drill

program.

MV25-DD01

Assay results have been received for DD01, although some intervals with initial “over -limit”

results remain to be re-assayed. The hole intersected Vizcacha hydrothermal breccia, as predicted

(Figures 2 & 3).

DD01 intersected 109 meters at a gold grade of 1.09 g/t (Table 2). This compares to the in-situ pit

sulfide indicated resource average gold grade of 0.70 g/t. There are multiple additional intercepts

at higher average grades. Additionally, a zone of elevate d silver-lead-zinc grades is present

between 130 to 189 meters down hole. There is an over -limit result, for at least 1 of these 3

elements, for many of the individual samples. Samples within this interval are being re-assayed

by atomic absorption.

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Figure 2: DD01 & DD02 Cross Section

Notes: 1) The line of section is displayed in Figure 1; 2) West-east section, looking North; 3) Block model

grades in grams/tonne Au & 4) Block model display filtered to > 0.20 grams/tonne Au.

Figure 3: Hole DD-01 Hydrothermal Breccia Photos

Note: Hydrothermal Breccia: dacite porphyry fragments in dark-gray hydrothermal

matrix. 9.2-meter depth block at photo top.

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Note: Hydrothermal breccia with strong sulfide mineralization. Left image is cut NQ core,

right image is enlarged (note the yellow mineral (orpiment) for scale and position).

Table 2

MV25-DD02

Hole MV25-DD02 was completed to a length of 239 meters (Figure 2). The hole dominantly

intersected the Vizcacha Hydrothermal Breccia from collar to 145 meters depth. Brecciated

dacite-andesite porphyry (DAP) dominated the deeper portion of the hole, with abundant sulfide

mineralization.

The two DD02 mineral intercepts correlate well with the logged interval of the hydrothermal

breccia (Table 3). The primary intercept average gold grades are also higher than the in-situ pit

sulfide indicated resource gold grade of 0.70 g/t.

Of additional note is the 42 – 71 meters interval, which has an average silver grade of 28.8 g/t, as

compared to the in-situ sulfide indicated resource average grade of 12.2 g/t.

Additionally, copper, lead, and zinc values are elevated (> 1000 ppm) for the interval 11 – 27

meters, down-hole. Several over-limit samples are being re-assayed. Lead and zinc values are

also elevated for the down-hole interval of 41 – 68 meters, with most individual sample values

being over-limit. The intercept values for this interval will be re -reported once the atomic

absorption re-assay values have been received.

From to Interval Au g/t Ag g/t

0 109 109 1.09 2.2

including 0 30 30 1.48 2.2

including 63 108 45 1.21 2.7

MV25-DD01 Gold Intercepts

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Table 3

MV25-DD03

Hole MV25-DD03 has been drilled (depth of 275 meters) to explore the Choque Zone (Figure 1

& Table 1) at depth, below the area where higher gold grades have been calculated within the 2025

resource model (Wilson, 2025), (Figure 4). The hole intersected argillically-altered DAP.

Intervals of hydrothermal breccia, overprinting the DAP, were also intersected in the upper half of

the hole (see the lower tray in Figure 5). The porphyry is oxidized to a down-hole length of 12.5

meters.

A zone of elevated copper is present in the upper portion of the hole, with many individual interval

grades reported at over-limit values. The copper values will be reported once the atomic absorption

re-assay values have been received.

Table 4

Hole From to Interval Au g/t Ag g/t

DD02 Upper Interval 0 94 94 1.26 9.7

including 0 29 29 1.87 1.3

& 42 71 29 0.94 28.8

& 2nd interval 118 143 25 1.17 1.2

MV25-DD02 Gold Intercepts

From to Interval Au g/t Ag g/t

Upper Interval 38 71 33 0.87 1.9

2nd interval 119 143 24 0.80 9.6

MV25-DD03 Gold Intercepts

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Figure 4: DD03 Cross Section

Notes: 1) The line of section is displayed in Figure 1; 2) North-south section, looking east; 3) Block

model grades in grams/tonne Au & 4) Block model display filtered to > 0.20 grams/tonne Au.

Figure 5: DD-03 Core

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The Phase 3 exploration program was supervised by Roman Flores, a Persona Calificada (Q.P.)

with the Commission Minera Chile.

References:

Wilson, S. E., 2025, NI 43-101 Technical Report for the Choquelimpie Au-Ag Project Region 1

Chile, 115p.

Qualified Person

David Flint, MSc, AIPG-CPG, and Chief Geologist of Norsemont Mining Inc.; a qualified person

as defined in NI 43-101, has reviewed and approved the technical information in this press release.

On Behalf of the Board,

NORSEMONT MINING INC.

Marc Levy

CEO & Chairman

About Norsemont Mining Inc.

The Norsemont team comprises experienced natural resource professionals focused on growing

shareholder value and developing its flagship project through to bankable feasibility, with an

indicated mineral resource estimate of 1,731,000 gold ounces, and 33,233,000 silver ounces and

an inferred mineral resource of 446,000 gold ounces and 7,219,000 silver ounces for its

Choquelimpie Gold-Silver-Copper project. Norsemont Mining owns a 100% interest in the

Choquelimpie gold-silver-copper project in northern Chile, a past producing gold and silver mine

with significant exploration upside. Choquelimpie has over 1,710 drill holes, with significant

existing infrastructure, including roads, power, water, camp and a 3,000 -tonne-per-day mill.

Norsemont is committed to responsible and sustainable resource development, leveraging modern

exploration techniques to unlock further value for all stakeholders.

For more information, please contact the Company at: [email protected]

Investor Relations: Paul Searle (778) 240-7724

Follow Norsemont Mining:

Twitter: @norsemont

LinkedIn: @norsemontmining

Facebook: @norsemontmining

YouTube: @norsemontmining

Neither the Canadian Securities Exchange nor its Regulation Services Provider (as that term is

defined in the policies of the Canadian Securities Exchange) accepts responsibility for the adequacy