US Antimony to Source Ore from Alaska to Strengthen Domestic Supply Chain

US Antimony Corporation (USAC)

US Antimony’s move to tap Alaskan antimony ore marks a significant step toward reducing reliance on foreign sources.

US Antimony Corporation (USAC) is making a strategic move to strengthen its domestic supply chain by sourcing antimony ore from its Alaskan mining claims. Starting in the second quarter, USAC will supply its Montana smelter with ore extracted from its newly acquired properties in Alaska. This marks the first time the Texas-based company has utilized domestically sourced feedstock for its operations, positioning it to reduce its dependency on foreign antimony supplies.

Strategic Move to Alaska

Over the past year, USAC purchased more than 210 mining claims covering approximately 33,000 acres in Alaska. These properties are known to contain significant antimony deposits, though past mining efforts in the region have focused primarily on gold, silver, and other metals. By tapping into these lesser-exploited deposits, USAC plans to support its smelting operations, primarily at its Thompson Falls facility in Montana. The proximity of these mining sites to existing infrastructure, including active mines, will facilitate a faster and more efficient supply chain for the company.

Implications for US Supply Chain and Onshoring Efforts

This move aligns with broader efforts by the US government to reduce reliance on foreign critical minerals, particularly from China. In January, President Donald Trump signed an executive order aimed at accelerating the permitting process for mining projects in Alaska. The strategic importance of reducing dependency on foreign sources of critical minerals, such as antimony, has been underscored by recent global supply chain disruptions, including China’s decision to restrict its antimony exports.

USAC’s plan includes gradually ramping up its ore extraction, eventually reaching 1,000 metric tonnes per month. This volume would supply both the Thompson Falls smelter and the company’s Madero smelter in Mexico. However, initial shipments from Alaska are expected to be modest, with volumes ranging from 100 to 200 tonnes per month until USAC can expand its Montana smelting capacity. The company is also awaiting a grant from the Department of Defense to support this expansion.

Impact of China’s Antimony Export Restrictions

USAC’s push to source antimony ore domestically is further fueled by China’s decision to impose export bans on antimony and restrict shipments to other global markets. In 2024, China accounted for 63% of all antimony shipments to the US, as per the US Geological Survey. These restrictions have created a more favorable market for USAC and other domestic companies looking to meet the growing demand for antimony. The company anticipates that high prices for antimony will persist due to the global shortage of this critical mineral, compounded by efforts to onshore mineral supplies to the US and other Western nations.

Conclusion

USAC’s decision to source antimony ore from its Alaskan mining claims represents a critical step in securing a reliable and domestically sourced supply of this vital mineral. As the US government continues to prioritize onshoring efforts and reduce its dependence on foreign critical minerals, USAC’s move sets an important precedent for the future of the domestic antimony market. With global supply chain disruptions highlighting the need for self-sufficiency, USAC is positioning itself as a key player in the race to secure critical mineral resources.