Dark Star Minerals options Lamont Lake uranium project, Athabasca Basin

Highlights: Agreement to acquire up to 100% of the Lamont Lake Uranium exploration project in Saskatchewan, Canada Saskatchewan is a highly prospective uranium province and favorable operating jurisdiction Historical geological data from the project indicates shallow mineralization and potential for significant resource development Historical shallow grade mineralization occurs from near surface to 57m and with grades of between 0.02% and 0.5% U 3 O 8 Initial analysis of available geological data shows similarities to the Beaver lodge deposits, only 90km southeast of claims package Minimal modern exploration undertaken across tenement package highlights near-term value creation opportunity Lamont Lake Uranium Project provides exceptional optionality and is a complementary asset to the Company's portfolio of clean energy assets Management continues to review historical data associated with the project to define near term exploration program Vancouver, British Columbia--(Newsfile Corp. - June 29, 2026) - DARK STAR MINERALS INC. (CSE: BATT) (WKN: A429LR) (FSE: P0W0) (the "Company" or "Dark Star") is pleased to announce it has entered into an arm's length, definitive agreement, dated June 26 th , 2026, to acquire up to 100% of the Lamont Lake Uranium Project (the "Project") situated in Northern Saskatchewan, Canada the terms of which are outlined below (the "Transaction"). The Project is located approximately 85km northwest of Uranium City, situated immediately north of the prolific Athabasca Basin, where some of the world's highest-grade uranium deposits are located. The Project encompasses 5 mineral claims covering an area of approximately 22km2.

Based on historic drilling data, the project is situated in an area that contains shallow uranium mineralization, occurring from near-surface down to approximately 57m, with approximate grades of between 0.02% and 0.5% U 3 O 8 . The Project encomp