Mr. Jordan Trimble report

SKYHARBOUR SIGNS LETTER OF INTENT WITH PURECORE TO OPTION ITS YURCHISON URANIUM PROPERTY IN THE ATHABASCA BASIN

Skyharbour Resources Ltd. has entered into a non-binding letter of intent dated July 15, 2026, with Purecore Metals Inc. (CSE: PURE) to option up to a 100-per-cent interest in the Yurchison uranium property located in the Wollaston domain of Northern Saskatchewan. The property consists of 22 claims covering approximately 35,029 hectares of mineral tenure.

Yurchison property summary:

Yurchison is roughly 75 kilometres south of Cameco's Rabbit Lake operation, with Highway 905 running through the claims. It is underlain by Wollaston Supergroup metasedimentary gneisses, including psammopelitic to pelitic gneisses, graphitic pelitic gneisses adjacent to Archean granitic gneisses in the eastern Wollaston domain.

The property area has seen significant historical exploration including airborne electromagnetic, magnetic and radiometric surveys, as well as ground magnetic, EM, IP and gravity surveys, prospecting, geological mapping, geochemical sampling, and drilling. The drilling was primarily conducted between the 1960s and 1980s with additional work completed in the mid-1990s and 2000s. Prospecting near old trenches returned uranium (0.09 per cent to 0.30 per cent U3O8) and molybdenum (2,500 parts per million to 6,400 ppm) mineralization in both outcrop and float samples. The property boasts strong discovery potential for both basement-hosted uranium mineralization as well as copper, zinc and molybdenum mineralization.

The majority of the work at Yurchison was completed before 2000, with limited follow-up since, and most of the property remains underexplored. The historical exploration on the western side of Yurchison focused on uranium showings while on the eastern side of the property it was largely focused on exploring Sedex-style Pb-Zn mineralization following the discovery of the historic George Lake Pb-Zn deposit proximal to the property. There are several uranium, molybdenum and thorium showings, which remain highly prospective for both basement-hosted uranium, pegmatite-hosted U-Th-REE and sediment-hosted Cu-Pb-Zn mineralization. The most recent work included airborne EM (VTEM and VLF-EM), magnetics and radiometrics surveys flown in 2022 and 2023.

Transaction summary:

Following the signing of the LOI, the parties have agreed to negotiate in good faith the terms of the transaction and settle the terms of the mineral property option agreement. The transaction is subject to conditions, including satisfactory completion of due diligence by Purecore, the entering into a binding definitive agreement, the approval of the board of directors of each of Skyharbour and Purecore, and receipt of all necessary regulatory approvals.

Qualified person

The technical information in this news release has been prepared in accordance with the Canadian regulatory requirements set out in National Instrument 43-101 and reviewed and approved by Serdar Donmez, PGeo, vice-president of exploration for Skyharbour, as well as a qualified person.

About Skyharbour Resources Ltd.

Skyharbour holds an extensive portfolio of uranium exploration projects in Canada's Athabasca basin and is well positioned to benefit from improving uranium market fundamentals with interests in 43 projects covering over 662,887 hectares (over 1.6 million acres) of land.

We seek Safe Harbor.