Greenridge Exploration Announces Winter 2026 Drilling Program at the Hook-Carter Uranium Project in the Athabasca Basin, Saskatchewan in Partnership with Denison Mines

Executive Summary

• Greenridge Exploration announced the launch of a 2026 winter drilling program at the Hook‑Carter Uranium Project, with up to eight diamond drill holes (≈4,600 m) slated for January–March 2026.
• An exploration permit covering geophysical work and up to 40 drill holes was received in early December 2025, valid through 31 Dec 2027.
• The program is the first drilling at Hook‑Carter since 2019 and targets extensions of the prolific Patterson Lake Corridor (PLC).

Key Details

• Permit: Exploration permit issued Dec 2025 authorizing geophysical surveying and up to 40 drill holes; expires 31 Dec 2027.
• Drilling Scope: Up to 8 diamond drill holes, total ≈4,600 m of core, to be executed Jan–Mar 2026.
• Ownership & Operator: Project owned 20 % Greenridge / 80 % Denison Mines Corp.; Denison is the operator.
• Target Generation: Targets derived from high‑resolution 2025 ground geophysical data integrated with historic exploration results indicating a potential mineralising system.
• Camp Logistics: Drilling to be conducted from a temporary work camp on‑site; program completion expected by end of March 2026.
• Joint Venture History:
• 2016 – ALX sold 80 % interest to Denison for 7.5 M Denison shares; retained 20 % (now Greenridge).
• 2024 – Joint‑venture amendment allowed ALX (now Greenridge) to increase its stake to 25 % by funding an additional $3.0 M of exploration by Nov 2026.
• Funding Obligations: Denison previously funded ALX’s share of the first $12.0 M of expenditures; Greenridge now assumes ALX’s funding obligations under the amended JV.
• Historical Expenditure: From 2016‑2023, Denison spent ≈ $7.08 M on Hook‑Carter (geophysics, surface work, ~12,000 m drilling).
• CEO Quote: “We are very pleased that Denison is initiating this Program at Hook‑Carter, being the first drilling on the Project since 2019… Greenridge is eager to see what the 2026 drilling reveals.” – Russell Starr, CEO.

Notable Quotes

“We are very pleased that Denison is initiating this Program at Hook‑Carter, being the first drilling on the Project since 2019. During that hiatus, the exploration momentum along the PLC for high‑grade uranium has been growing and Greenridge is eager to see what the 2026 drilling reveals at Hook‑Carter.” – Russell Starr, Chief Executive Officer

Materiality Assessment: Non‑Material – Positive (the announcement outlines future exploratory activity without immediate financial impact or disclosed results).