Redpost has launched the RPU-120+ single-channel polyurethane (PU) monitor, a special-purpose electronic temperature recorder covering the same temperature range as the previous RPU-120 but with higher accuracy and longer logging duration. Using the same third-generation sensing and electronics platform as the RPU-352, the unit targets “industry-leading” temperature accuracy for PU injection and curing control in mining and tunnelling applications. The device retains Redpost’s rugged construction, aimed at reliable performance in harsh underground environments where precise thermal profiling governs grout behaviour and quality assurance.

Hillgrove Resources has reported further high-grade copper from underground drilling at the Emily Star lode within the Kanmantoo project in South Australia, supporting plans to restart underground mining beneath the former open pit. ABx Group is progressing product development at its Deep Leads rare earths project in northern Tasmania, advancing towards commercialisation of clay-hosted REE products. Amara Minerals has secured new funding to advance antimony exploration, signalling continued investor appetite for critical mineral prospects across Australian brownfield and greenfield sites.

M Resources and its partner Golden Energy and Resources (GEAR) have secured the Tahmoor underground coal operations in New South Wales through a competitive auction, beating rival bids involving former Mastermyne chief executive Tony Caruso, contractor RStar and trader IMR. The deal transfers control of a long-life hard coking coal mine with established longwall infrastructure and rail-linked CHPP, positioning the consortium to leverage existing capacity rather than develop greenfield assets. For contractors and suppliers, the ownership change signals potential retendering of underground services, logistics and capital works packages.