Mr. Scott Walters reports

MAXUS MINING HIGHLIGHTS HISTORICAL POLYMETALLIC RESULTS AT THE QUARRY PROJECT IN BRITISH COLUMBIA, CANADA

Maxus Mining Inc. has provided highlights from a historical data compilation at the Quarry project, located in the prolific Bralorne mining district in British Columbia. The company recently consolidated the project by acquiring the Beveley property, as announced by the company on Sept. 26, 2025.

The company completed a comprehensive data compilation of historical assessment reports at the project, which generated exploration targets for the fall 2025 exploration program. The company engaged the Palliser Exploration team to complete a reconnaissance field program across the project. Results of the 2025 exploration and sampling field program at the project are pending.

Quarry project highlights:

• Historic drilling returned averages of:
  • 23.6 metres of 1.83 per cent lead, 2.82 per cent zinc and 56.2 grams per tonne silver in hole 77-111;
  • 13.0 m of 0.65 per cent Pb, 2.58 per cent Zn and 42.5 g/t Ag in hole 78-251;
  • 6.91 m of 2.42 per cent Pb, 2.43 per cent Zn and 87.7 g/t Ag in hole 80-662;
  • 3.81 m of 1.00 per cent Pb, 3.19 per cent Zn and 43.5 g/t Ag in hole 80-762.
• Historic estimate of the Bull's-eye zone (non-National Instrument 43-101 compliant):
  • 99,781 tonnes of 1.42 per cent Pb, 2.24 per cent Zn and 36.3 g/t Ag (drill indicated and historical);
  • 2.72 Mt of 3.66 per cent Pb plus Zn and 36.3 g/t Ag (original category not classified and three zones);
  • Historical block estimate.
• Cost-effective advancement: The company is actively compiling drill hole data into 2-D and 3-D workspaces to interpret subsurface geology and mineralization, aiming to quickly and effectively advance the project toward modern exploration and drilling programs.
• Critical polymetallic mineralization: Historic grab sampling from a massive galena-bearing vein returned average assays of 83.5 per cent Pb and 1,576 g/t Ag, with additional grab samples returning elevated Pb, Zn, antimony, copper, gold and Ag values, including 20 per cent Sb, 42.5 per cent Pb, 3.8 per cent Cu and 0.89 g/t Au.
• Strategic location: Situated 28 kilometres northwest of Germansen Landing, B.C., within favourable carbonate and dolomite breccia host rocks.

"Historic exploration at the project has generated a meaningful body of sampling, drilling and mapping data that documents polymetallic mineralization across the property," said Scott Walters, chief executive officer of Maxus. "This body of historical information provides important context for the mineralized zones identified to date and informs the company's ongoing review of the project."

Quarry project historical summary

Historical work at the project has outlined multiple zones of base metal and precious metal mineralization. Historical grab sampling at the Regent mineral occurrence from a massive galena-bearing vein system returned average assays of 83.5 per cent Pb and 1,576 g/t Ag. Additional historical grab samples reported values including 20 per cent Sb, 42.5 per cent Pb, 3.8 per cent Cu, 0.89 g/t Au and 0.34 per cent Zn, as well as 0.29 per cent Sb, 21.1 per cent Pb, 0.23 per cent Cu, 0.39 g/t Au, 583 g/t Ag and 0.57 per cent Zn.

Within the Bull's-eye zone, historic estimates reported 99,781 tonnes grading 1.42 per cent Pb, 2.24 per cent Zn and 36.3 g/t Ag (drill indicated), as well as 2.72 Mt grading 3.66 per cent Pb plus Zn and 36.3 g/t Ag (original category not classified, three zones).

As part of the company's initiative to complete a historic drill hole compilation across its entire property portfolio, these drill holes have been incorporated into the company's 2-D and 3-D workspaces, and will be incorporated into a drill hole database in coming weeks.

Comments on reliability of historical estimate

The historical estimate for the property is sourced from property file PF40196, Suzie Mining Explorations Ltd. newsletter No. 17, prepared by Keith C. Fahrni, PEng, and dated July 14, 1978. The estimate is historical in nature and does not include the categories required under current Canadian Institute of Mining, Metallurgy and Petroleum definition standards. There are no directly comparable CIM categories that can be attributed to this estimate, and, to the knowledge of the qualified person, no modern mineral resource or reserve estimates exist for the property. A QP has not done sufficient work to classify the historical estimate as current mineral resources or mineral reserves, and the company is not treating the historical estimate as current mineral resources or mineral reserves.

Work required to upgrade and verify the historical estimate includes a desktop compilation of historical drill data, confirmatory/twin drilling at appropriate spacing, specific-gravity testing by domain, modern analytical quality assurance/quality control with check assays, validation of collar locations and downhole surveys, development of a 3-D geological/grade model, and QP verification to CIM standards.

Qualified person statement

The scientific and technical information contained in this news release has been reviewed, verified and approved by Morgan Verge, PGeo, technical adviser of the company, a qualified person as defined in National Instrument 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 continuing 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.

The historic estimate described above fall under the NI 43-101 definition of a historic estimate meaning that the calculations were prepared prior to the Feb. 1, 2001, implementation of NI 43-101 and therefore do not conform to NI 43-101 standards. No NI 43-101-compliant resource estimates exist to date on the property.

About Maxus Mining Inc.

Maxus 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 totalling 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 per cent Sb. The Hurley antimony project, located adjacent to Endurance Gold Corp.'s Reliance gold project, where 2024 drilling reported 19.2 per cent Sb and 2.16 g/t Au over 0.5 metre, and the Quarry antimony project, which hosts historical polymetallic samples grading 0.89 g/t Au, 3.8 per cent Cu, 0.34 per cent Zn, 42.5 per cent Pb, 0.65 g/t Ag and 20 per cent Sb. Maxus's 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 per cent 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 1,046 parts per million Cu (TK17-149c), 1,808 ppm Cu (TK17-28) and 2,388 ppm Cu (TK17-12). The project is strategically located near the historic Sullivan mine at Kimberley, B.C., an area that continues to attract significant exploration activity.

Maxus Mining is committed to advancing its B.C. projects through targeted exploration programs designed to unlock value across multiple critical mineral systems.

We seek Safe Harbor.