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Northern Star Finalises US$6M Stake in PolarX Alaska Range JV

Mining By Maxwell Dee 2 min read

Northern Star Resources has completed its US$6 million earn-in contribution to the Alaska Range Joint Venture with PolarX, securing a 30% interest and fully funding the largest exploration campaign in PolarX’s history.

  • Northern Star increases JV stake to 30%
  • US$6 million earn-in contribution received
  • 2026 exploration program fully funded at US$6.9 million
  • Largest-ever PolarX field season planned for mid-June
  • Projects include Caribou Dome, Senator, and Stellar

Northern Star Secures 30% Stake with Final Payment

PolarX Limited (ASX:PXX) has confirmed receipt of the full US$6 million (~A$8.5 million) earn-in contribution from Northern Star Resources, cementing Northern Star’s 30% interest in the Alaska Range Joint Venture. This milestone completes the funding commitment Northern Star agreed to in August 2025, marking a significant step forward in the partnership’s development of the Alaska Range Project.

Largest Exploration Program in PolarX History Fully Funded

The joint venture’s coffers now hold sufficient capital to execute the planned US$6.9 million exploration campaign for 2026, which PolarX describes as its largest ever. Field activities are slated to commence in mid-June, signalling an aggressive push to advance the Caribou Dome Copper Project, Senator Project, and Stellar Project within the Alaska Range.

This program follows on from the company’s recent 2026 exploration budget approval, which outlined a 10,500-metre diamond drilling campaign focused initially on Caribou Dome, where previous drilling has extended high-grade copper mineralisation both at depth and along strike. The JV’s funding certainty should help maintain momentum, especially after assay delays prompted deadline extensions earlier this year.

Strategic Implications for PolarX and Northern Star

With Northern Star’s increased stake, the JV partners can push forward with confidence. The Alaska Range Project’s portfolio, including the Caribou Dome area where recent drilling revealed copper grades exceeding 13% Cu, is positioned for a potentially transformative exploration season. PolarX’s upcoming field program will be closely watched for results that could reshape the project’s valuation and Northern Star’s role in the JV.

PolarX’s progress in Alaska complements its activities in Nevada, where the company recently reported promising gold and silver results at the Ridgeline prospect. These parallel developments underscore PolarX’s broader strategy to build value across multiple jurisdictions, leveraging Northern Star’s investment to accelerate growth.

Bottom Line?

Northern Star’s completed funding unlocks PolarX’s largest exploration push yet, setting the stage for a critical mid-year drilling campaign.

Questions in the middle?

  • Will the 2026 drilling at Caribou Dome convert high-grade intercepts into a resource upgrade?
  • How might Northern Star’s expanded JV stake influence future strategic decisions in Alaska?
  • What impact will the exploration results have on PolarX’s market valuation and funding options?