Anglo American has signed an investment agreement with Mitsubishi Corporation to support development of the Woodsmith polyhalite mine in North Yorkshire, a deep underground operation designed to produce a multi-nutrient natural fertiliser. The deal backs continued construction of the mine’s major underground infrastructure, including its long-distance mineral transport tunnel to Teesside and associated shaft systems. For engineers, the partnership signals capital support for advancing geotechnical works, underground materials handling design and long-lead items for processing and export facilities.

Antimony Resources Corp has exposed additional “massive” stibnite mineralisation in bedrock at the Marcus West Zone of its Bald Hill project in New Brunswick, and will immediately drill up to six shallow holes to test the zone at 30–50 m depth alongside a 10,000 m definition drilling campaign on the Main Zone. Historic trenching in the Central Zone returned 2.90% Sb over 8.18 m, including 5.79% Sb over 1.75 m and 8.47% Sb over 1.53 m, while ATMY trenching has traced South Zone stibnite over ~150 m. The 2026 programme also includes soil sampling, prospecting, and a potential airborne survey, positioning Bald Hill as a North American antimony target amid Chinese export controls.

Nova Minerals’ US-listed shares rose over 6% to $6.78 (market cap $255.3 million) even as short seller Spruce Point Capital Management disclosed a short position and warned of 45–60% downside to $2.50–$3.50 per ADR, or more than 100% under adverse scenarios such as loss of US Department of War funding. Spruce Point’s report questions Nova’s ability to deliver its proposed gold–antimony mine at the 500 km² Estelle project in Alaska’s Tintina belt, citing lack of infrastructure, community opposition, severe weather and concerns over the qualifications of its “competent” and “qualified” person. Nova plans a central mining and processing hub targeting first military-grade antimony output within two years, backed by a $43.4 million DoW award, and is preparing to redomicile to the US while consolidating the remaining 15% of Estelle.