First Quantum Minerals’ updated NI 43-101 for the La Granja copper project in northern Peru outlines 4.8 billion tonnes of measured and indicated resources at 0.48% Cu (23.0 Mt contained), plus 5.2 billion tonnes inferred at 0.40% Cu (20.7 Mt), based on 832 diamond holes totalling 370,000 metres. The company plans pit-side comminution and slurry transport via a 7 km tunnel to a processing and tailings complex on a flatter Pacific coastal plain ~100 km away, using desalinated seawater as primary supply. Engineering focus centres on managing arsenic as discrete, “packageable” mineral phases to maintain saleable concentrate through a conventional flowsheet under Peru’s strict ESIA regime.

Rosh Pinah Zinc and Appian Capital Advisory have commissioned a new process water treatment plant at the Rosh Pinah mine in Namibia as a core element of the RP2.0 expansion. The plant is engineered to retreat and recycle process water from multiple circuits across the operation, cutting freshwater draw and reducing discharge volumes to the site’s TSF and evaporation facilities. For mine planners and process engineers, the scheme tightens the site water balance and may enable higher throughput under existing abstraction permits.

Brazil’s antitrust authority Cade has opened a competition probe into USA Rare Earth’s proposed $2.8 billion acquisition of Serra Verde Group, operator of the Pela Ema rare earth mine and processing plant in Goiás, including a 15‑year US offtake agreement for neodymium, praseodymium, dysprosium and terbium. The review will determine whether the deal is a notifiable “concentration act” and could lead to approval, conditions or a full administrative case. Serra Verde, backed by a recent $565 million DFC funding package, expects Pela Ema to supply about half of ex‑China heavy rare earth output by 2027.