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Maxus Mining Earns 100% Interest in the Penny Copper Project, British Columbia

Corporate Updates

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

Maxus Mining Earns 100% Interest in the Penny Copper Project,

British Columbia

The Project covers a large prospective land package within a well-established mining jurisdiction with extensive

historical exploration.

May 19, 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 Penny Copper

Project (the “Penny Project”, “Penny”, or the “Project”), located near Kimberley, British Columbia (Please see Figure

1).¹

The Company has fulfilled all obligations under its Purchase Agreement (the “Option Agreement”), resulting in Maxus

securing full ownership of the Penny Project.

Penny Copper Project Overview

The Penny Project consists of approximately 3,123 hectares situated within a prolific mining region of southeastern

British Columbia near the historic Sullivan Mine at Kimberley, British Columbia.¹ The Project hosts numerous historical

mineral occurrences and benefits from over a century of recorded exploration activity.

Historical and recent exploration work at Penny has included geological mapping, prospecting, and rock sampling

programs targeting copper-rich mineralization associated with favourable regional structures and alteration systems.

Prior to Maxus, recent work programs completed on the Project included geological mapping and rock sampling, with

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

ppm Cu (TK17-12).¹ Since being involved on the Project, Maxus has completed a high-resolution MobileMT survey

followed by geological mapping and rock sampling that included samples returning copper values up to 0.34% Cu.2

The Project is strategically positioned within an active mining district that continues to attract significant exploration

and development funding.

Transaction Highlights

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

full legal and beneficial ownership of the Penny Project.

• Strategic Copper Exposure: Penny strengthens Maxus’ growing portfolio of critical mineral and polymetallic

assets in British Columbia.

• District-Scale Potential: The Project covers a large prospective land package within a well -established

mining jurisdiction with extensive historical exploration.

• Operational Flexibility: Full ownership provides Maxus with the flexibility to advance exploration, target

generation, and future development initiatives across the Project in line with the Company’s strategy.

Currently, Maxus is continuing to advance exploration planning across the Project through historical data

compilation, geological interpretation, and target generation.

“We are very pleased to have completed the acquisition of a 100% interest in the Penny Copper Project,”

commented Scott Walters, CEO of Maxus. “Copper remains a critically important metal supporting global

electrification and infrastructure growth, and Penny provides Maxus with exposure to a highly prospective copper

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

project within a prolific mining district. Securing full ownership gives the Company the flexibility to continue

advancing exploration and evaluating the Project’s broader potential.”

Figure 1: Penny Project Map with 2025 Exploration Program Highlights.

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

Next Steps

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

• Advancing geological and geophysical interpretation to streamline drill target refinement;

• Integrating available datasets into evolving 2D and 3D geological models; and

• Evaluating future exploration programs across the Project.

Option Agreement Details

On May 17, 2024, the Company entered into the Agreement to acquire the option from Andrew Molnar (the

“Optionor”) to earn a hundred percent (100%) interest in the Project through a combination of cash payments and

common share issuance, as follows:

(1) paying the Optionor an aggregate of $65,000 in cash as follows:

a. $15,000 on or before June 16, 2024 (completed);

b. $25,000 on or before the date that is ten days after May 8, 2025 (the “Listing Date”) (completed); and

c. $25,000 on or before the date that is ten days after the first anniversary of the Listing Date (completed);

and

(2) issuing to the Optionor an aggregate of 200,000 common shares in the capital of the Company on or before

the date that is ten days after the Listing Date (completed).

No finders' fees were paid on this arm's length Agreement.

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‡.

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

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 NI 43-101 – Technical Report on the Penny Property British Columbia, NTS 82G/12, Derrick Strickland, P.Geo., August

14, 2024.

2 Maxus Mining News Release, December 9, 2025. Link

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

Assays up to 69.98% Sb’ – Link

‖ 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 – Link

‡ Open File 1992-11, Map Number 10.

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

† 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 benefits of completing the Option Agreement. With respect to the forward-

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

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 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.