Mr. Graham Downs reports

CASCADIA COMPLETES PURCHASE OF THE BYNG AND MARS PROPERTIES

Cascadia Minerals Ltd. has closed its previously announced purchase of the Byng and Mars properties from Strategic Metals Ltd. The transaction is described in Cascadia's news releases of Feb. 24, 2026, and March 19, 2026:

• The transaction involves the acquisition by Cascadia of the Byng property and the Mars property in southern Yukon. The Byng property comprises 90 claims and the Mars property comprises 93 claims.
• Pursuant to the transaction, Strategic has been granted a 2-per-cent net smelter return (NSR) royalty in respect of the properties. Cascadia has the option to purchase half of the NSR royalty for $2-million. The Mars property is subject to a pre-existing royalty on the DDH 1-16 claims, granting Allan Doherty a 1-per-cent NSR on all production from these claims.
• The total consideration for the purchase was:
  • $125,000 in cash;
  • 500,000 Cascadia shares valued at 25 cents per share. The consideration shares are subject to a four-month hold period, which ends on July 25, 2026.
• There were no finders' fees payable in respect of the transaction.
• The transaction was a non-arm's-length transaction and is a reviewable transaction under TSX Venture Exchange policies as Strategic and Cascadia share a common director, Bruce Youngman. Mr. Youngman was not involved in the negotiation or approval of the transaction.
• The transaction is not a related party transaction subject to TSX Venture Exchange Policy 5.9 or Multilateral Instrument 61-101.

Advertising and investor awareness services

Cascadia also announces it has entered into an advertising and investor awareness campaign with Dig Media Inc., doing business as Investing News Network (INN), effective March 23, 2026. INN is a private company headquartered in Vancouver, Canada, dedicated to providing independent news and education to investors since 2007. For the 12-month term of the agreement, INN will provide advertising to increase awareness of the issuer. The cost of the campaign is $46,800, payable in quarterly instalments of $11,700. INN currently holds no securities of Cascadia and is an arm's-length party to Cascadia. Cascadia's agreement with INN is subject to TSX-V approval.

About Cascadia Minerals Ltd.

Cascadia's flagship asset is the 180-square-kilometre Carmacks project, located within in central Yukon, Canada, 35 kilometres southeast of the past-producing Minto mine. The road-accessible Carmacks project has a measured and indicated resource containing 651 million pounds (lb) of copper and 302,000 ounces (oz) of gold (36.3 million tonnes grading 0.81 per cent copper, 0.26 gram per tonne (g/t) gold, 3.23 g/t silver and 0.01 per cent molybdenum) or 1.07 per cent copper equivalent. A 2023 preliminary economic assessment demonstrated positive economic potential, with a $330.1-million posttax NPV (net present value) (5 per cent) and a 38-per-cent after-tax IRR (internal rate of return) at $4.25 (U.S.) per lb copper and $2,000 (U.S.) per oz gold.

Cascadia also has a pipeline of discovery-stage copper-gold properties throughout the Yukon Stikine terrane, including its Catch property, which hosts a copper-gold porphyry discovery, where inaugural drill results returned broad intervals of mineralization (116.60 metres (m) of 0.31 per cent copper with 0.30 g/t gold). High-grade copper and gold mineralization is found at surface over five-kilometre-long trend, with grab samples returning peak values of 3.88 per cent copper, 1,065 g/t gold and 267 g/t silver.

QA/QC (quality assurance/quality control)

Results referenced in this news release represent highlight results only and include results from historical work conducted by other operators. Below detection values for gold, silver and molybdenum have been encountered in soil and rock samples in these target areas. Readers are cautioned that grab samples are selective by nature and are not necessarily representative of the grade of mineralization on the property. Historical data have not been independently validated by Cascadia.

Copper equivalent calculations for the Carmacks deposit use metal prices of $4 (U.S.) per lb for copper, $2,500 (U.S.) per oz for gold, $30 (U.S.) per oz for silver and $20 (U.S.) per lb for molybdenum. Recovery factors of 82 per cent for copper, 70 per cent for gold, 69 per cent for silver and 70 per cent for molybdenum were used, based on recovery projections from the 2023 PEA (preliminary economic assessment) study. All dollar amounts are in Canadian dollars unless indicated otherwise.

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.