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Maxus Mining Earns 100% Interest in the Alturas West Property including the Past Producing Alps-Alturas Antimony Mine

1 MAXUSMINING.COM | [email protected] | CSE: MAXM | OTCQB: MXMGF | FRA: R7V

Maxus Mining Earns 100% Interest in the Alturas West Property

including the Past Producing Alps-Alturas Antimony Mine

The Alps-Alturas Antimony Mine produced over 95 tonnes of antimony with an average grade of 57.2% Sb1

March 26, 2026

Vancouver, B.C. – Maxus Mining Inc. (“Maxus” or the “Company”) (CSE: MAXM | OTCQB: MXMGF | FRA: R7V) is

pleased to announce that it has earned a one hundred percent (100%) legal and beneficial interest in the Alturas West

Property, part of the Company’s flagship Alturas Antimony Project, located in British Columbia’s Slocan Mining Division

(Please see Figure 1).1

The Company has fulfilled all remaining obligations under its previously announced Property Option Agreement (the

“Option Agreement”) with Eminence Minerals Ltd. (formerly Equinox Resources Limited) (“Eminence”), including the

accelerated issuance of consideration shares, resulting in Maxus securing full ownership of the Alturas West Property

(“Alturas West”).

Alturas Antimony Project Overview

The Company’s flagship Alturas Antimony Project (“Alturas” or the “Project”) is comprised of two (2) claim blocks,

Alturas West (Please see Figure 2) and Alturas East (Please see Figure 3), and is situated on the historic high-grade

Alps–Alturas antimony mine within the prolific Slocan Mining District (Figures 1 and 2). The Project hosts a 1,300-

metre mineralized corridor characterized by quartz veins containing stibnite (Sb₂S₃) mineralization within a structurally

controlled shear zone.2

Historical production from the Alps–Alturas mine averaged approximately 57.2% antimony, with reported grades

reaching up to 59.5% Sb.3 More recent sampling has returned ultra-high-grade antimony values, further supporting

the Project’s potential as a high-impact critical minerals asset.

Transaction Highlights

• 100% Ownership Achieved: All requirements under the Option Agreement have been satisfied, securing

full legal and beneficial ownership of Alturas West.

• Flagship Asset Advancement: Alturas remains a cornerstone project within Maxus’ growing portfolio of

critical mineral assets.

• Strategic Positioning: Full ownership provides the Company with flexibility to advance exploration,

permitting, and development initiatives across the broader Project.

Maxus is continuing to advance exploration planning across the Project, including data integration, target refinement,

and progression toward drill-ready targets.

“We are very pleased to have completed the acquisition of a 100% interest in Alturas West, a key component of our

flagship Alturas Antimony Project,” commented Scott Walters, CEO of Maxus Mining. “This milestone strengthens our

position in the antimony sector and provides us with full control to advance exploration and development across the

Project. We appreciate the cooperation of Eminence throughout this process and look forward to unlocking further

value at Alturas.”

Next Steps

With full ownership now established, the Company will focus on:

2 MAXUSMINING.COM | [email protected] | CSE: MAXM | OTCQB: MXMGF | FRA: R7V

• Advancing permitting and regulatory processes;

• Integrating geological, geochemical, and geophysical datasets into a 3D model;

• Refining high-priority targets across both Alturas West and East; and

• Preparing for future exploration and drilling programs.

Figure 1: Maxus Mining Alturas Project

3 MAXUSMINING.COM | [email protected] | CSE: MAXM | OTCQB: MXMGF | FRA: R7V

Figure 2: Maxus Mining Alturas West Block

Figure 3: Maxus Mining Alturas East Block

4 MAXUSMINING.COM | [email protected] | CSE: MAXM | OTCQB: MXMGF | FRA: R7V

Qualified Person Statement

The scientific and technical information contained in this news release has been reviewed, verified, and approved by

Morgan Verge, P.Geo., VP Exploration of the Company and a “qualified person” as defined in NI 43-101 – Standards

of Disclosure for Mineral Projects. Ms. Verge has examined information regarding the historical exploration at the

Project, which includes a review of the historical sampling, analytical, and procedures underlying the information and

opinions contained herein.

Management cautions that historical results collected and reported by operators unrelated to Maxus have not been

verified nor confirmed by its Qualified Person; however, the historical results create a scientific basis for ongoing work

at the Project. Management further cautions that historical results, discoveries and published resource estimates on

adjacent or nearby mineral properties, whether in stated current resource estimates or historical resource estimates,

are not necessarily indicative of the results that may be achieved on the Project.

About Maxus Mining Inc.

Maxus Mining Inc. (CSE: MAXM | OTCQB: MXMGF | FRA: R7V) is a mineral exploration company focused on locating,

acquiring, and, if warranted, advancing economic mineral properties in premier jurisdictions. The Company is actively

progressing its diversified portfolio totaling approximately 15,098 hectares of prospective terrain across British

Columbia, Canada.

The Portfolio includes 8,920 hectares across three antimony projects, anchored by the Flagship Alturas Antimony

Project, where a recent discovery returned high-grade naturally occurring antimony up to 69.98% Sb¶. The Hurley

Antimony Project, located adjacent to Endurance Gold Corp.’s Reliance Gold Project, where 2024 drilling reported

19.2% Sb and 2.16 g/t Au over 0.5 m‖, and the Quarry Antimony Project, which hosts historical polymetallic samples

grading 0.89 g/t Au, 3.8% Cu, 0.34% Zn, 42.5% Pb, 0.65 g/t Ag, and 20% Sb‡.

Maxus’ portfolio further includes the 3,054-hectare Lotto Tungsten Project, where a selected 1980 grab sample from

a scheelite-bearing quartz vein assayed 10.97% WO₃§, and the 3,123-hectare Penny Copper Project, which has over

100 years of recorded exploration. Recent work programs at Penny included rock sampling and geological mapping†,

with 2017 sampling returning copper values of 1046 ppm Cu (TK17-149c), 1808 ppm Cu (TK17-28), and 2388 ppm Cu

(TK17-12)†. The Project is strategically located near the historic Sullivan Mine at Kimberley, British Columbia, an area

that continues to attract significant exploration activity.

Maxus Mining is committed to advancing its British Columbia projects through targeted exploration programs

designed to unlock value across multiple critical mineral systems.

References

1 Höy, T., 2016. The Slocan Silver Camp, Sandon, British Columbia. Prepared by: Klondike Silver Corp.

– https://klondikesilver.com/site/assets/files/6895/technical_report_-_43101_final_-2016_hoy1.pdf

2 Equinox Resources – November 8, 2024, ‘Ultra High Grade Naturally Occurring Antimony at Alturas Project with

Assays up to 69.98% Sb’ – https://cdn-api.markitdigital.com/apiman-gateway/ASX/asx-research/1.0/file/2924-

02878498-6A1236703

3 Alps-Alturas MINFILE – https://minfile.gov.bc.ca/Summary.aspx?minfilno=082KSW049

¶ Equinox Resources – November 8, 2024, ‘Ultra High Grade Naturally Occurring Antimony at Alturas Project with

Assays up to 69.98% Sb’ – https://cdn-api.markitdigital.com/apiman-gateway/ASX/asx-research/1.0/file/2924-

02878498-6A1236703

5 MAXUSMINING.COM | [email protected] | CSE: MAXM | OTCQB: MXMGF | FRA: R7V

‖ Endurance Summarizes Antimony Results From The Reliance Gold Project, BC – Best Intervals Include 19.2%

Antimony And 2.16 ppm Au Over 0.5 m In 2024 Drilling – February 24, 2025 – https://endurancegold.com/news-

releases/endurance-summarizes-antimony-results-from-the-reliance-gold-project-bc-best-intervals-include-19.2-

antimony-and-2.16-ppm-au/

‡ Open File 1992-11, Map Number 10.

§ MILFILE No: 082FSW228 – Loto 3, 1980 Grab Sample –

https://minfile.gov.bc.ca/report.aspx?f=PDF&r=Inventory_Detail.rpt&minfilno=082FSW228

† NI 43-101 – Technical Report on the Penny Property British Columbia, NTS 82G/12 49° 55° North Latitude -115°

90° West Longitude, Derrick Strickland P.Geo., August 14, 2024.

On Behalf of the Board of Directors

Scott Walters

Chief Executive Officer, Director

+1 (778) 374-9699

[email protected]

Disclaimer for Forward-Looking Information

This news release includes certain “Forward-Looking Statements” within the meaning of the United States Private Securities

Litigation Reform Act of 1995 and “forward-looking information” under applicable Canadian securities laws. When used in this news

release, the words “anticipate”, “believe”, “estimate”, “expect”, “target”, “plan”, “forecast”, “may”, “would”, “could”, “schedule”

and similar words or expressions, identify forward-looking statements or information.

Forward-looking statements and forward-looking information relating to any future mineral production, liquidity, enhanced value

and capital markets profile of Maxus’, future growth potential for Maxus and its business, and future exploration plans are based

on management’s reasonable assumptions, estimates, expectations, analyses and opinions, which are based on management’s

experience and perception of trends, current conditions and expected developments, and other factors that management believes

are relevant and reasonable in the circumstances, but which may prove to be incorrect. Assumptions have been made regarding,

among other things, the price of copper, gold, tungsten, antimony and other metals; costs of exploration and development; the

estimated costs of development of exploration projects; Maxus’ ability to operate in a safe and effective manner and its ability to

obtain financing on reasonable terms.

This news release contains “forward-looking information” within the meaning of the Canadian securities laws. Statements, other

than statements of historical fact, may constitute forward looking information and include, without limitation, statements with

respect to the Project and its mineralization potential; the Company’s objectives, goals, or future plans with respect to the Project;

further exploration work on the Project in the future; the expected benefits of completing the Option Agreement. With respect to

the forward-looking information contained in this news release, the Company has made numerous assumptions regarding, among

other things, the geological, metallurgical, engineering, financial and economic advice that the Company has received is reliable

and are based upon practices and methodologies which are consistent with industry standards. While the Company considers these

assumptions to be reasonable, these assumptions are inherently subject to significant uncertainties and contingencies. Additionally,

there are known and unknown risk factors which could cause the Company’s actual results, performance or achievements to be

materially different from any future results, performance or achievements expressed or implied by the forward-looking information

contained herein. Known risk factors include, among others: fluctuations in commodity prices and currency exchange rates;

uncertainties relating to interpretation of well results and the geology, continuity and grade of copper, gold, tungsten, antimony

and other metal deposits; uncertainty of estimates of capital and operating costs, recovery rates, production estimates and

estimated economic return; the need for cooperation of government agencies in the exploration and development of properties and

the issuance of required permits; the need to obtain additional financing to develop properties and uncertainty as to the availability

and terms of future financing; the possibility of delay in exploration or development programs or in construction projects and

uncertainty of meeting anticipated program milestones; uncertainty as to timely availability of permits and other governmental

approvals; increased costs and restrictions on operations due to compliance with environmental and other requirements; increased

costs affecting the metals industry and increased competition in the metals industry for properties, qualified personnel, and

6 MAXUSMINING.COM | [email protected] | CSE: MAXM | OTCQB: MXMGF | FRA: R7V

management. All forward-looking information herein is qualified in its entirety by this cautionary statement, and the Company

disclaims any obligation to revise or update any such forward-looking information or to publicly announce the result of any revisions

to any of the forward-looking information contained herein to reflect future results, events or developments, except as required by

law.

The Canadian Securities Exchange (CSE) does not accept responsibility for the adequacy or accuracy of this release.