Cantex Mine Development Corp. (CD: TSXV) (the "Company"). Further to its news releases of July 17, and August 12, 2026, the Company is pleased to announce that, due to added interest, it has elected to increase the amount of its previously announced private placement to $3,500,000. All other terms remain the same.

The Offering 

The Offering will be comprised of a combination of charity flow through units ("CFT units"), flow through shares ("FT shares") and hard units ("Units"). The CFT units will be priced at $0.3625 per unit, with each CFT unit comprised of one flow through share and one-half of a non-flow through warrant. Units will be priced at $0.25 per unit, with each Unit comprised of one common share and one-half of a non-flow through warrant. FT Shares will be priced at $0.30 per FT shares, with no warrants attached to them. Each whole warrant issued in connection with either a CFT unit or a Unit entitles the holder to acquire a non-flow through share at a price of $0.40 for a term of two years. As announced on August 12, 2026, the Company closed a first tranche of the offering for total gross proceeds of $1,929,900.

The Company may pay finder's fees in connection with the Offering in accordance with the policies of the TSX Venture Exchange. Proceeds from the Offering will be used to fund qualified critical mineral exploration expenditures on the Company's North Rackla project in the Yukon and to fund general operating costs. The Offering remains subject to the acceptance of the TSX Venture Exchange.

About Cantex 

Cantex is focused on its 100% owned 20,000 hectare North Rackla Project located 150 kilometers northeast of the town of Mayo in the Yukon Territory, Canada where high-grade massive sulphide mineralization has been discovered. Over 100,000 meters of drilling has defined high grade silver-lead-zinc-germanium mineralization over 2.80 kilometers of strike length and at least 700 meters depth. The mineralization remains open along strike and to depth. The Company is led by Dr. Charles Fipke, C.M., the founder of Ekati, Canada's first diamond mine.

The technical information and results reported here have been approved by Mr. Chad Ulansky P.Geol., a Qualified Person under National Instrument 43-101, who is responsible for the technical content of this release. Mr Ulansky is the Company's President and CEO.

Signed,

Chad Ulansky

Chad Ulansky President and CEO

Neither TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.

SOURCE Cantex Mine Development Corp.

SOURCE: Cantex Mine Development Corp.

For further information: Cantex Mine Development Corp, Tel: +250-860-8582,
Email:Ainfo@cantex.ca

COMTEX_492289360/2197/2026-09-08T22:01:00