US Antimony Restarts Madero Smelter to Resume Antimony Processing

US Antimony

Focus Keyphrase: US Antimony Madero smelter

US Antimony Madero smelter operations have officially resumed after a year-long shutdown, signaling renewed momentum in the North American antimony supply chain. The Montana-based company began processing imported antimony ore at its facility in Coahuila, Mexico, following delays at customs.

The restarted Madero smelter received its first shipment of ore from international sources in late March. Despite a two-week customs delay, processing is now underway, with additional shipments scheduled to arrive in the coming weeks.

Restart Follows Year of Operational Suspension

US Antimony halted operations at the smelter in March 2024 due to financial and operational challenges. These included underperformance, negative cash flow, and logistical issues related to sourcing and processing ore.

The current restart suggests improved market conditions and a revised operational strategy to better align with commercial goals. This could help the company meet growing demand for antimony, a critical mineral used in flame retardants, batteries, and defense applications.

Antimony Supply Chain Gaining Renewed Focus

The US Antimony Madero smelter restart aligns with wider efforts to strengthen North American supply chains for critical minerals. Antimony, included in the U.S. critical minerals list, faces limited domestic production and high import dependence.

By reactivating its smelting capabilities, US Antimony may help diversify supply while contributing to national resource security. The next shipments and consistent throughput will be key indicators of long-term viability for the restarted facility.

The Metalnomist Commentary

The Madero smelter restart is a noteworthy move toward restoring regional refining capacity for antimony. If operational consistency is maintained, US Antimony could play a key role in mitigating reliance on foreign antimony supplies.