Rainbow Rare Earths Ltd (LSE:RBW, OTC:RBWRF, FRA:RR1) CEO George Bennett talked with Proactive's Stephen Gunnion about the company’s Uberaba rare earths project in Brazil and why an economic assessment suggests it could replicate the success of the company’s Phalaborwa project. Bennett explained that the project benefits from a unique approach to rare earth extraction. Instead of traditional mining, Rainbow plans to recover rare earth elements from phosphogypsum residue generated during phosphoric acid production at Mosaic’s fertiliser operations in Brazil. This process eliminates many of the typical mining steps such as drilling, blasting and crushing, helping to significantly reduce operating costs and development risk. The Uberaba site also offers a long operational horizon. According to Bennett, the phosphoric acid facilities feeding the residue are expected to operate for more than 30 years, creating a long-life opportunity for rare earth extraction. He highlighted that the material contains grades above 0.5% TREO, which compares favourably with many ionic clay projects. Bennett said the streamlined processing route helps support strong project economics. “Most traditional rare earth mining projects have geological risk and mining risk… we start with a direct acid leach and then go into continuous ion exchange,” he explained, noting that these advantages contribute to EBITDA margins of around 69–70%. Rainbow is developing the project alongside global fertiliser producer Mosaic, with a proposed 51% Mosaic and 49% Rainbow joint venture structure following a successful pre-feasibility study. The partnership also provides access to existing infrastructure and a brownfield industrial site, which Bennett said could accelerate development timelines. The company is targeting production by 2030, an unusually fast timeline for rare earth projects. For more interviews like this, visit the Proactive YouTube channel, give the video a like, subscribe to the channel and enable notifications so you never miss future updates. #RainbowRareEarths #RareEarths #CriticalMinerals #UberabaProject #BrazilMining #EnergyTransition #RareEarthSupplyChain #Phalaborwa #MiningStocks #ResourceInvesting #BatteryMetals #ProactiveInvestors