Latest Mining In Arizona News

American Tungsten & Antimony has paired a sharply higher FY2026 loss with its most consequential strategic step yet: a proposed US mine-to-metal chain anchored by the Del Sol refinery. The acquisition remains unfinished, but the company has produced antimony ingot from Arizona mine material and ended the year with $19.5 million in cash.

Infinity Metals has reported a sharply smaller FY2026 loss as it shifts its exploration focus towards the United States and Australia. The pivot follows rejection of its San José mining licence application, a A$2.25 million placement and a growing portfolio of early-stage copper, molybdenum and tin targets.

American Tungsten & Antimony has produced antimony ingot from Arizona-mined material at its Nevada refinery, providing the first physical demonstration of its proposed US mine-to-metal chain. The milestone creates samples for testing and customer qualification, but the underlying asset acquisition remains incomplete and product quality is yet to be disclosed.

American Tungsten & Antimony has started an ahead-of-schedule campaign to produce antimony flake at its Del Sol refinery in Nevada, using material from Arizona. The first physical demonstration of its proposed US mine-to-metal chain could generate samples for customer qualification and government discussions, although the underlying asset acquisition remains incomplete.

American Tungsten & Antimony Ltd (ASX: AT4) has kicked off critical wet table trials at its Del Sol Refinery in Nevada, moving closer to producing ammonium paratungstate and antimony flake from domestic sources. Engineering proposals for expanding the plant’s tungsten processing capacity are under review, while the company pursues US government funding and regulatory approvals.

Infinity Metals has expanded its Swansea copper project area by nearly half, securing full ownership of new claims that extend over 5km of mineralised strike and include historically high-grade copper zones.

American Tungsten & Antimony Ltd (ASX: AT4) affirmed the materiality of its US acquisition deal and detailed its adherence to ASX continuous disclosure rules following an ASX inquiry.

Infinity Metals has locked in an exclusive option to acquire 100% of the Tule Canyon molybdenum-copper project in Nevada, tapping into a critical minerals asset with strong historical data and strategic positioning amid soaring molybdenum prices.

Infinity Metals has secured a two-year exclusive option to acquire 100% of the high-grade Swansea copper mine in Arizona and raised A$2.25 million via a discounted placement to fund exploration and acquisition costs.

Ragusa Minerals has started an induced polarisation geophysical survey at the Black Rock Manganese Mine within its Purple Pansy Project in Arizona, aiming to map high-grade manganese mineralisation and prepare for drilling.

Golden Mile Resources Ltd (ASX: G88) has secured a binding joint venture to earn up to 95% interest in the Leviathan Porphyry Copper-Molybdenum Project in Arizona, with initial sampling confirming significant copper and molybdenum mineralisation and exploration set to begin in April 2026.

Capstone Copper has resolved a significant labour dispute at its Mantoverde mine in Chile, ratifying a new three-year agreement that ends a strike and sets the stage for a return to full operations.