Mr. Graham Downs reports

CASCADIA ANNOUNCES CLOSING OF FINANCING

Cascadia Minerals Ltd. has oversubscribed and closed its previously announced non-brokered private placement for total proceeds of $2,274,385, in conjunction with Cascadia's planned acquisition of Granite Creek Copper Ltd., see news release dated June 9, 2025, for more details. The placement was oversubscribed by 174,180 subscription receipts.

The placement consisted of the sale of: (a) 14,459,894 subscription receipts at a price of 14 cents per subscription receipt for gross proceeds of $2,024,385; and (b) 1,785,714 units at a price of 14 cents per Cascadia unit for gross proceeds of $250,000. Each subscription receipt entitles the holder to receive at the effective time of the transaction one unit of Cascadia consisting of one Cascadia share and one common share purchase warrant. Each warrant will entitle the holder thereof to purchase an additional Cascadia share at a price of 24 cents per share for a period of two years following the date of issuance of the warrant. The Cascadia units also consist of one Cascadia share and one common share purchase warrant having the same terms as the warrants forming part of the units underlying the subscription receipts.

The proceeds from the sale of the subscription receipts will be held in escrow pending the closing of the transaction. If the closing of the transaction has not completed by Aug. 29, 2025, the subscription receipts will be cancelled and the escrowed proceeds returned to the subscribers. Cascadia will use the proceeds of the placement to pay expenses associated with the transaction and to conduct exploration on the Carmacks Project.

Cascadia will pay cash finders' fees totalling $90,623 and issue a total of 647,308 finder warrants in connection with the financing, with such fees to be paid and warrants to be issued at the closing of the transaction. Each finder warrant shall be exercisable into one common share of Cascadia for a period of 24 months from issue, at an exercise price of 24 cents per finder warrant.

The Cascadia shares and warrants comprising the Cascadia units and any Cascadia shares issuable upon the exercise of these warrants are subject to a hold period in Canada until Nov. 4, 2025. The subscription receipts are also subject to a hold period in Canada which ends on Nov. 4, 2025, but the Cascadia shares and warrants issuable upon the conversion of the subscription receipts at the effective time of the transaction and any Cascadia shares issued on the exercise of the warrants will not be subject to a resale hold period in Canada.

Insiders of Cascadia purchased a total of 1,071,429 subscription receipts and 1,785,714 Cascadia units in the private placement. The participation of insiders in the private placement constitutes a related party transaction, within the meaning of TSX-V Policy 5.9 and Multilateral Instrument 61-101 -- Protection of Minority Security Holders in Special Transactions (MI 61-101). Cascadia has relied on exemptions from the formal valuation and minority shareholder approval requirements provided under sections 5.5(a) and 5.7(a) of MI 61-101 on the basis that the fair market value (as determined under MI 61-101) of insider participation in the placement did not exceed 25 per cent of Cascadia's market capitalization.

About Cascadia Minerals Ltd.

Cascadia is a Canadian junior mining company focused on making new copper and gold discoveries the Yukon and British Columbia. Cascadia's flagship Catch property in the Yukon hosts a brand-new copper-gold porphyry discovery where inaugural drill results returned broad intervals of mineralization, including 116.60 metres of 0.31 per cent copper with 0.30 gram per tonne gold. Catch exhibits extensive high-grade copper and gold mineralization across a five-kilometre-long trend, with rock samples returning peak values of 3.88 per cent copper, 1,065 g/t gold and 267 g/t silver.

Cascadia and Granite Creek Copper Ltd. recently announced a merger, whereby Cascadia will acquire all outstanding shares of Granite Creek by way of a plan of arrangement (see news release dated June 9, 2025). Granite Creek's flagship asset is the Carmacks project in the high-grade Minto copper district in Yukon Territory, Canada. The project is located south of and within 35 km of the past-producing Minto mine, which was recently acquired by Selkirk Copper Mines. The Carmacks project hosts a measured and indicated resource containing 651 million pounds of copper and 302,000 ounces of gold (36.3 million tonnes grading 0.81 per cent copper, 0.26 g/t gold and 3.23 g/t silver, and 0.01 per cent molybdenum) with a 2023 PEA demonstrating positive economic potential ($230.5-million posttax NPV (net present value) (5 per cent) and 29-per-cent posttax IRR (internal rate of return)).

QA/QC (quality assurance/quality control)

The technical information in this news release has been approved by Andrew Carne, PEng, vice-president of corporate development for Cascadia and a qualified person for the purposes of National Instrument 43-101.

We seek Safe Harbor.