Monday, September 14, 2026
MiningNewsTerminal
Monday, September 14, 2026 Admin

NEXM.V ·

NexMetals Expands the Selebi System Intersecting 10.40 Metres of 6.82% CuEq (3.09% Cu, 1.83% Ni) at Selebi Main, 320 Metres Beyond the 2024 MRE

Drill Results Resource Estimates Corporate Updates

NexMetals Expands the Selebi System

Intersecting 10.40 Metres of 6.82% CuEq

(3.09% Cu, 1.83% Ni) at Selebi Main, 320

Metres Beyond the 2024 MRE

Vancouver, British Columbia--(Newsfile Corp. - May 7, 2026) -

NexMetals Mining Corp. (TSXV:

NEXM) (NASDAQ: NEXM)

("

NEXM

" or the "

Company

") is pleased to report assay results from its

surface drilling program at the Selebi Mines Project in Botswana, targeting the gap between the Selebi

Main and North deposits and advancing resource expansion. The Selebi Mines Project comprises two

deposits, Selebi Main and Selebi North, which host a combined Mineral Resource of 3.0 Mt at 2.92%

CuEq (0.90% Cu and 0.98% Ni) Indicated and 24.7 Mt at 3.40% CuEq (1.50% Cu and 0.92% Ni)

Inferred. Drilling has intersected mineralization 320 metres beyond the 2024 Mineral Resource Estimate

("

2024 MRE

"), confirming strong down-plunge continuity and highlighting the potential for additional

mineralized horizons at depth at Selebi Main.

What You Need to Know: Mineralization Expanded at Selebi Main

SMD-26-209 intersected

10.40 Metres of 6.82% CuEq (3.09% Cu, 1.83% Ni)

, located 320

metres down-dip of the 2024 MRE.

Results are consistent with SMD-25-205 (

11.05 metres of 7.31% CuEq,

see news release dated

February 26, 2026

), located 350 metres to the northeast, demonstrating expansion potential within

the Flexure Zone, extending down-dip and down-plunge from Selebi Main.

SMD-25-201 and SMD-25-203 tested the southern portion of the 2km gap between the

Selebi Main and Selebi North deposits:

SMD-25-201 intersected multiple intervals of massive sulphide mineralization (

see news

release dated January 20, 2026

).

SMD-25-203 intersected 16.10 metres of sulphide mineralization, located 385 metres down-

plunge of SMD-25-201 and 620 metres beyond the 2024 MRE (see Table 1).

Based on drilling results and borehole electromagnetic ("

BHEM

") data, follow-up drilling is now

focused on a 200-metre spacing, with the goal of incorporating these new results into an updated

MRE expected to be completed in the second half of 2026.

SMD-26-208 intersected three mineralized horizons, including a lower zone with a thickness

of 7.45 metres (see Table 1).

Four holes are currently in progress at Selebi Main, with a fifth, Company-owned, drill rig recently

added to accelerate the program.

What Does This Mean

Confirmation that the Selebi Main mineralization extends well beyond 2024 MRE boundaries.

A third zone is emerging beneath the two known zones.

The updated MRE is expected to have a significantly larger tonnage than the 2024 MRE, at both

Selebi Main and Selebi North.

Sean Whiteford, CEO of the Company, commented:

"Drilling at Selebi Main continues to

demonstrate strong continuity within the Flexure Zone, with mineralization now extending well beyond the

limits of the 2024 MRE. Importantly, all holes reported today have returned grades and widths above the

2024 MRE cut-off, reinforcing the quality and consistency of the system as we expand both down-dip and

down-plunge. With drilling now tightening to a 200-metre spacing and five rigs active, we are well

positioned to support a meaningful increase in the next MRE."

Figure 1:

Long section of Selebi Main, current drill hole locations relative to the 2024 MRE and the

Selebi North deposit.

To view an enhanced version of this graphic, please visit:

https://images.newsfilecorp.com/files/7759/296394_7d83821824586b2a_002full.jpg

Figure 2:

Selebi Main drill hole locations SMD-25-203, SMD-25-207, SMD-26-208 and SMD-26-

209. Borehole electromagnetic plate geometry highlighting new mineralized horizons.

To view an enhanced version of this graphic, please visit:

https://images.newsfilecorp.com/files/7759/296394_7d83821824586b2a_003full.jpg

To date, a total of 22,061 metres in 8 completed holes, 1 hole extension, 4 abandoned holes and 4 in-

progress holes have been completed as part of the surface drilling program. Assay results for SMD-25-

203, SMD-25-207, SMD-25-208 and SMD-25-209 are reported below in Table 1 and drill hole collar

details are provided in Table 2.

Table 1: 2025 Surface Drilling Results

Hole-ID

From

(m)

To

(m)

Length

(m)

Est. True

Thickness

1

Cu

(%)

Ni

(%)

Co

(%)

2

Zone

CuEq

(%)

3

SMD-25-203

1928.65

1944.75

16.10

15.9

0.76

0.50

0.02

Main Zone

1.78

including

1928.65

1942.15

13.50

13.3

0.86

0.56

0.02

Main Zone

2.02

including

1932.50

1942.15

9.65

9.5

1.10

0.55

0.02

Main Zone

2.22

including

1937.40

1942.15

4.75

4.7

1.42

0.81

0.03

Main Zone

3.09

SMD-25-203

1964.40

1965.45

1.05

0.95

1.64

1.92

0.09

Lower Zone

5.58

SMD-25-203

1968.20

1969.20

1.00

0.90

0.83

1.84

0.02

Lower Zone

4.62

SMD-25-207

1644.90

1645.30

0.40

0.37

0.17

1.88

0.12

Main Zone

4.05

SMD-25-207

1661.85

1663.70

1.85

1.70

1.22

0.58

0.02

Lower Zone

2.42

including

1661.85

1662.35

0.50

0.48

1.02

0.96

0.04

Lower Zone

3.00

SMD-26-208

1581.30

1585.00

3.70

3.55

1.95

1.32

0.06

Main Zone

4.66

including

1581.30

1583.40

2.10

2.01

2.50

2.13

0.09

Main Zone

6.89

SMD-26-208

1589.55

1590.55

1.00

0.85

0.94

1.53

0.06

Main Zone

4.10

SMD-26-208

1611.90

1616.70

4.80

4.70

1.23

0.54

0.02

Lower Zone

2.34

including

1614.40

1616.25

1.85

1.81

1.09

1.11

0.05

Lower Zone

3.38

SMD-26-208

1628.90

1636.35

7.45

7.35

0.67

0.67

0.03

Lower Zone 2

2.05

SMD-26-209

1768.55

1778.95

10.40

10.30

3.09

1.83

0.08

Main Zone

6.82

including

1768.55

1772.20

3.65

3.61

3.45

1.79

0.08

Main Zone

7.72

and

1773.05

1778.95

5.90

5.84

3.27

2.07

0.09

Main Zone

7.21

1

Length refers to drillhole length and not true width. True widths are estimated where density of drilling is sufficient for an estimation. Some true widths

cannot be estimated due to insufficient drill density.

2

Co is not included in the MRE as cobalt analyses are not consistently available throughout the deposit.

3

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, and nickel and copper

recoveries of 72.0% and 92.4%, respectively, derived from metallurgical studies which consider a conceptual bulk concentrate scenario.

Table 2: 2025 Surface Drilling Collar Information

HOLE ID

UTM East

UTM North

Elevation

Dip

True North

Azimuth

Hole Length

SMD-25-203

582550.8

7564012.8

905.8

-78.1

112.1

2,010.4

SMD-25-207

582644.0

7563223.9

905.4

-81.2

108.2

1,739.6

SMD-25-208

582752.1

7563358.1

903.6

-78.7

111.0

1678.2

SMD-25-209

582465.3

7563469.4

908.0

-74.7

100.2

1861.9

Detailed Drilling and BHEM Information

SMD-25-203, a 385-metre down-plunge step-out from SMD-25-201, intersected multiple intervals of

massive sulphides mineralization over 16.1 metres.

SMD-25-207, SMD-26-208 and SMD-26-209 were drilled at a 200-metre spacing to allow for the

expansion of the Inferred Resource.

Qualified Person

All scientific and technical information in this news release has been reviewed and approved by Sharon

Taylor, VP Exploration of the Company, MSc, P.Geo, and a "qualified person" for the purposes of

National Instrument 43-101 and Subpart 1300 of Regulation S-K. Sharon Taylor has verified the data

disclosed in this news release, including the sampling, analytical and test data underlying the disclosure,

through multiple visits to drill sites and sample preparation facilities, assessment and oversight of

sample preparation protocols, and review of the QA/QC procedures applied to analytical results

received from ALS Chemex. No limitations or failures to verify were identified that could materially affect

the results.

Quality Control

The program is being executed using three company-owned underground Zinex U5 drills which were

converted into surface A5 drills, and two Marcotte HTM2500s drill purchased by the Company capable

of drilling to depths of 2,550 metres (NQ core).

Drill core samples are either NQ (47.75 mm diameter) or BQ (36.40 mm diameter).

All samples are ½

core samples cut by a diamond saw on site and the remaining 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 Geochemistry 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). Analyses for Pt, Pd, and Au are by fire assay (30 grams nominal sample weight) with

an ICP-AES finish (PGM-ICP23).

Holes are numbered as follows: SMD (Selebi Main Deposit) + year + hole number starting at 201.

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 highly valuable because of the size of the highly conductive mineralized system.

Technical Report

The 2024 MRE on the Selebi Mines is supported by the technical report entitled "Technical Report,

Selebi Mines, Central District, Republic of Botswana" dated September 20, 2024 (with an effective date

of June 30, 2024) (the "

Selebi Technical Report

"), and the technical report summary entitled "S-K

1300 Technical Report Summary Selebi Mines, Central District, Republic of Botswana, Premium

Resources Ltd." dated December 17, 2024 (with an effective date of June 30, 2024) (the "

Selebi

Technical Report Summary

"), each prepared by SLR Consulting (Canada) Ltd. for NEXM. Reference

should be made to the full text of the Selebi Technical Report, which was prepared in accordance with NI

43-101 and is available on SEDAR+ (

www.sedarplus.ca

) and the Selebi Technical Report Summary,

which was prepared in accordance with Subpart 1300 of Regulation S-K and is available in the

Company's Annual Report on Form 10-K for the fiscal year ended December 31, 2025 filed with the U.S.

Securities and Exchange Commission on EDGAR (

www.sec.gov

), in each case, under NEXM's issuer

profile.

About NexMetals Mining Corp.

NexMetals Mining Corp. is a TSX.V and NASDAQ listed mineral exploration and development company

focused on redeveloping the past-producing Selebi and Selkirk copper-nickel-cobalt-platinum group

element mines in Botswana. NexMetals has confirmed the scale of mineralization is larger than historical

estimates, supported by NI 43-101- and Regulation S-K 1300-compliant resource estimates, with

ongoing down-hole geophysics, drilling, and metallurgical programs aimed at expanding resources and

supporting future economic studies. The Company is led by an experienced management and technical

team with a proven track record in global mineral projects, emphasizing disciplined execution,

transparent governance, and long-term stakeholder value creation.

For further information about NexMetals Mining Corp., please contact:

Sean Whiteford

CEO

[email protected]

1-866-NEXM (6396)

Neither the TSX Venture Exchange and its Regulation Services Provider (as that term is defined

in the policies of the TSX Venture Exchange) nor the Nasdaq Stock Market LLC accepts

responsibility for the adequacy or accuracy of this news release. No stock exchange, securities

commission or other regulatory authority has approved or disapproved the information

contained herein.

Follow Us

X:

https://x.com/NexMetalsCorp

LinkedIn:

https://www.linkedin.com/company/NexMetalsMiningCorp

Facebook:

https://www.facebook.com/NexMetalsMiningCorp

Cautionary Note Regarding Forward-Looking Statements

This news release contains "forward-looking statements" within the meaning of the United States

federal securities laws and "forward-looking information" within the meaning of applicable Canadian

securities legislation (collectively, "forward-looking information") based on expectations, estimates

and projections as at the date of this news release. Forward-looking information involves risks,

uncertainties and other factors that could cause actual events, results, performance, prospects and

opportunities to differ materially from those expressed or implied by such forward-looking information.

For the purposes of this release, forward looking information includes, but is not limited to, the

implementation of the objectives, goals and future plans of the Company, including: the potential for

additional mineralized horizons at depth at Selebi Main; the expansion potential within the Flexure

Zone; belief in the emergence of a third zone beneath the two known zones; incorporating new drilling

results into an updated MRE expected to be completed in the second half of 2026; the updated MRE

having a significantly larger tonnage than the 2024 MRE; and the Company being well positioned to

support a meaningful increase in the next Mineral Resource update. These forward-looking

statements, by their nature, require the Company to make certain assumptions and necessarily

involve known and unknown risks and uncertainties that could cause actual results to differ materially

from those expressed or implied in these forward-looking statements. Factors that could cause actual

results to differ materially from such forward-looking information include, but are not limited to, capital

and operating costs varying significantly from estimates; the preliminary nature of drilling and

metallurgical test results; the ability of exploration results to predict mineralization; the ability of the

Company to implement its drilling, geoscience and metallurgical work on its properties and work plans

generally; prefeasibility or the feasibility of mine production; delays in obtaining or failures to obtain

required governmental, environmental or other project approvals; uncertainties relating to the

availability and costs of financing needed in the future; changes in equity markets; inflation;

fluctuations in commodity prices; delays in the development of projects; the other risks involved in the

mineral exploration and development industry; and those risks set out in the Company's filings with

the SEC on EDGAR (

www.sec.gov

) and public disclosure record on SEDAR+ (

www.sedarplus.ca

), in

each case, under NEXM's issuer profile. Although the Company believes that the assumptions and

factors used in preparing the forward-looking information in this news release are reasonable, undue

reliance should not be placed on such information, which only applies as of the date of this news

release, and no assurance can be given that such events will occur in the disclosed time frames or at

all. The Company disclaims any intention or obligation to update or revise any forward-looking

information, whether as a result of new information, future events or otherwise, other than as required

by law.

To view the source version of this press release, please visit

https://www.newsfilecorp.com/release/296394