#United States #Anchorage #Northern Star #Caribou Dome #PolarX Limited

PolarX's Caribou Dome Project: A New Era of High-Grade Copper Discovery

In an exciting development for the mining sector, PolarX Limited (ASX: PXX; OTCQB: PXXXF) has unveiled outstanding assay results from their first diamond drilling holes for the 2026 campaign at the Caribou Dome Project in Alaska. This endeavor, in partnership with Northern Star Resources Limited, promises to alter the landscape of copper mining in the region significantly.

Exceptional Copper Grades Unveiled

The drilling campaign, fully funded by Northern Star, has shown substantial promise. As of September 11, 2026, several drilled holes (CD26-004 to CD26-007) have intersected high-grade copper zones that exceeded expectations. Among the highlights:

• - Hole CD26-007 reported impressive intervals of 24.8m at 9.8% Cu and 14.5g/t Ag, including 4.9m at 13.6% Cu.
• - Hole CD26-004 produced 22.6m at 8.1% Cu and 13.5g/t Ag, with notable sections showing even higher purity and silver content.

These results not only highlight the potential for significant copper recovery but also reaffirm the efficacy of the drilling and exploratory techniques employed throughout this campaign.

Exploration Advancements

The recent drilling attempts were methodically planned to target areas of prior historical interest while exploring new depths. Notably, the depth drilling sought to intersect deeper mineralization to the north of the existing resource boundary. Results indicate that the northern extension of the mineralization may hold further promise for future extraction endeavors.

Additional drilling holes, like CD26-009 and CD26-013, have also been successful. Hole CD26-009 displayed a massive sulphide zone reaching 57.5m in length, which was rich in visible chalcopyrite, a significant copper ore. Meanwhile, CD26-013 intersected multiple zones of massive and semi-massive sulphides, highlighting substantial copper presence across varying depths.

Financial Backing and Future Planning

With continued financial backing from Northern Star, the drilling project's current funding totals around US$11 million, which is earmarked for ensuing exploration activities, including technical surveys and further drill operations. The goal remains to complete an additional 1,700 meters of drilling before the end of the campaign this month. This heightened activity reflects confidence in advancing the Caribou Dome Project’s resource estimates and solidifies PolarX's reputation as a key player in Alaska's mining industry.

Resources and Significance

The Caribou Dome Project currently boasts a JORC Resource of 224,375 tonnes of contained copper, while the neighboring Zackly deposit adds an additional 45,000 tonnes of copper and approximately 213,000 ounces of gold. Together, these resources position PolarX and Northern Star as formidable competitors within the often volatile mining landscape, particularly in North America.

Given the strategic importance of these findings, the company remains committed to continual assessment of both the Caribou Dome and its adjacent properties. As they prepare for the next stages of exploratory drilling, PolarX is keen on maximizing shareholder value through disciplined exploration and strategic funding initiatives.

Conclusion

As the Alaska mining sector continues to mature, PolarX Limited stands out with its promising Caribou Dome Project. With a combination of strong assay results and a solid financial backing framework, the potential for significant resource extraction seems more viable than ever. Investors and tech enthusiasts alike should keep an eye on PolarX as it embarks on this transformative journey within the lucrative sphere of copper mining.