PolarX Reports High-Grade Copper Assays, Starts Drilling at Alaska JV
PolarX announced final high-grade copper assays from its Caribou Dome project and the start of a 10,000m drilling program under its Alaska joint venture with Northern Star Resources.

PolarX Limited (ASX: PXX; OTCQB: PXXXF) has reported the final assays from its 2025 diamond drilling program at the Caribou Dome Copper Project in Alaska, part of its joint venture with Northern Star Resources. The results include exceptional intercepts such as 3.0 meters at 11.23% copper and 12.63 g/t silver from 63.3 meters depth. The company also announced that the 10,000-meter Alaska Range Joint Venture drilling program has commenced.
The high-grade copper assays underscore the potential of the Caribou Dome project, which is situated in a mining-friendly jurisdiction. For commodities traders, such exploration results can signal future supply additions, though the timeline to production remains long. Copper prices have been volatile amid global demand concerns and supply constraints, and any positive exploration news can influence market sentiment. For real-time copper prices, traders can refer to NowPrice's commodities quotes.
Investors will now focus on the progress of the 10,000-meter drilling program, which aims to further define the resource base. The joint venture with Northern Star Resources, a major gold producer, adds financial strength and operational expertise. Key catalysts include additional assay results and updates on resource estimates, which could impact PolarX's valuation and the broader copper exploration sector.