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THE JOURNAL - AN OFFICIAL PUBLICATION BY THE ALASKA MINERS ASSOCIATION
JUNE 2026 | WWW.ALASKAMINERS.ORG
Pogo continues growth trajectory with major resource expansion
underground development, supporting a longer mine life and broader production opportunities. Ore Reserves also moved higher during the year, increasing to 10.96 million tonnes grading 6.8 grams per tonne gold for 2.385 million ounces. The increase resulted largely from successful infill drilling that upgraded resource confidence and allowed additional ounces to be converted into mineable reserves. While reserve grades declined modestly, Northern Star attributed the change to lower cut-off grades rather than deterioration in the underlying mineral system. The updated reserve inventory provides a substan- tial foundation for continued underground mining and supports the operation's long-term production outlook. For Alaska's mining sector, the results further demon- strate the enduring strength of the Goodpaster district and the effectiveness of sustained exploration invest- ment at mature operations. Nearly 20 years after first production, Pogo continues to evolve from a single-mine operation into a growing mining district with multiple resource centers capable of supporting future expansion and value creation.
grams per tonne gold for 9.3 million ounces. Of that total, more than 4.1 million ounces are classified as indicated resources, providing a strong foundation for future reserve conversion. Beyond the main Pogo deposit, the company reported growing inventories within the broader district. The Goodpaster area now hosts approximately 1.5 million ounces of inferred resources, while the newly reported Star deposit contains approximately 372,000 ounces grading an impressive 11 grams per tonne gold. A notable feature of the 2026 update is the increase in resource tonnage at lower average grades. Northern Star said the higher-tonnage, lower-grade inventory enhances future development optionality and reflects a reduction in the resource cut-off grade from 4.1 grams per tonne to 3.4 grams per tonne, supported by stronger long-term gold price assumptions. The company's mineral resource estimate for Pogo is based on a gold price assumption of $2,600 per ounce, while ore reserves are calculated using a more conservative $1,900 per ounce gold price. Officials said the expanded resource inventory pro- vides greater flexibility for mine planning and future
COURTESY OF NORTHERN STAR RESOURCES
N orthern Star Resources has significantly strengthened the long-term outlook for its Pogo operation in Interior Alaska, reporting substantial increases in mineral resources and ore reserves that reinforce the mine's position as one of the company's key strategic assets. Northern Star's resource and reserve update released June 3 shows Pogo's mineral resources increasing by 3.1 million ounces to 9.3 million ounces of gold, while ore reserves grew by 300,000 ounces to 2.4 million ounces. The gains come after accounting for mining depletion and underscore the continuing success of exploration efforts across the operation. Located in Alaska's highly prospective Tintina Gold Province, Pogo has produced more than 5.5 million ounces of gold since entering production in 2006. The operation now contains an additional 9.3 million ounces in mineral resources, highlighting the district's
continued growth potential nearly two decades after startup. Northern Star identified Pogo as one of three cornerstone assets — alongside KCGM in Western Australia and the Hemi Project — that are central to the company's long-term growth strategy. Together, those assets account for approximately 65 million ounces, or 73%, of Northern Star's total resource inventory. According to the company, the resource increase was driven by infill drilling across several areas of the mine, particularly East Deeps and South Pogo, which improved confidence in mineralization and increased the proportion of Indicated Resources. Additional growth came from the inclusion of the maiden Star Mineral Resource, a new discovery that contributed approximately 300,000 ounces. The updated resource statement shows total Pogo mineral resources of 37.9 million tonnes grading 7.6
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