Almonty Industries Begins Tungsten Ore Processing Plant Operations At Its Sangdong Mine In South Korea

During June 2026, the Company began feeding stockpiled run-of-mine ore through its newly commissioned processing plant to produce saleable tungsten concentrate — a pivotal milestone marking Sangdong’s transition from mine development into active, revenue-generating operations.

Almonty exited the first quarter of 2026 with approximately 120,000 tonnes of ore stockpiled at an average grade of 0.24% tungsten trioxide ("WO₃").

During the second quarter of 2026, the Company mined an additional approximately 19,700 tonnes of development ore at an average grade of 0.35% WO₃, while advancing 214.6 meters of underground development, primarily along the Main Vein.

Together, this brings total stockpiled ore to approximately 139,700 tonnes at a blended grade of approximately 0.25% WO₃ ahead of the plant’s commissioning.

We are utilizing lower-grade throughput during the initial ramp-up phase and anticipate higher grades as the process advances, with Sangdong's low-grade ore approximately three times higher than that of our Panasqueira mine in Portugal.

With throughput now underway, stockpiled ore is being introduced during the initial commissioning phase to optimize ore blending and maintain the consistent feed quality the plant requires as the operation ramps up.

The Sangdong Mine processing plant is designed to upgrade run-of-mine ore into a high-purity tungsten concentrate.

At prevailing tungsten prices, the contained tungsten in the current stockpile represents approximately 2.6 months of Phase I throughput feed with an illustrative gross in-process value of approximately US$68 million.