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An update from Rainbow Rare Earths ( (GB:RBW) ) is now available.
Rainbow Rare Earths has confirmed that its large-scale pilot plant in Johannesburg, designed for the Phalaborwa project, is operating as planned and has produced around 2 kg of high-grade mixed rare earth hydroxide. The material, grading about 55% total rare earth oxides, exceeds typical Chinese mixed rare earth carbonate specifications and is considered a commercial product.
The company said the high-purity hydroxide is an optimal feed for its planned solvent extraction circuit, which aims to produce separated NdPr oxide and a SEG+ product with more than 99.5% purity. Management framed the successful pilot performance as a key de-risking milestone that supports Rainbow’s strategy to move further downstream, capture more of the value chain and strengthen its positioning among high-margin, non-Chinese rare earth suppliers.
By demonstrating that the primary flowsheet can reliably yield a commercial-grade mixed rare earth product, Rainbow underpins the economic assumptions for Phalaborwa’s development and its plan to deliver separated oxides from a single hydrometallurgical plant. This progress is likely to be watched closely by stakeholders seeking diversified supply of critical rare earths for electric vehicles, wind power and other advanced technologies.
The most recent analyst rating on (GB:RBW) stock is a Hold with a £19.00 price target. To see the full list of analyst forecasts on Rainbow Rare Earths stock, see the GB:RBW Stock Forecast page.
Spark’s Take on GB:RBW Stock
According to Spark, TipRanks’ AI Analyst, GB:RBW is a Neutral.
The score is held down primarily by a weak financial profile (pre-revenue, ongoing losses, and cash burn) and soft technical momentum (below key moving averages with a negative MACD). Positive corporate developments around de-risking and improving project economics provide some offset, but valuation remains difficult to justify on earnings given continued losses.
To see Spark’s full report on GB:RBW stock, click here.
More about Rainbow Rare Earths
Rainbow Rare Earths is a rare earth elements developer focused on creating an independent and ethical supply chain for materials critical to the green energy transition. The company recovers rare earths from phosphogypsum, a by-product of phosphoric acid production, enabling faster, lower-cost development than traditional hard rock mining projects.
Its main assets are the Phalaborwa project in South Africa and the earlier-stage Uberaba project in Brazil, both designed to deliver separated rare earth oxides from a single on-site hydrometallurgical plant. The process targets high-value elements such as neodymium, praseodymium, dysprosium and terbium, used in EVs, wind turbines, defence and emerging sectors like robotics and advanced air mobility.
An updated interim economic study released in December 2024 confirmed strong economics for Phalaborwa, with a base case NPV10 of US$611 million. As a chemical processing operation using surface, chemically cracked feedstock, Phalaborwa is expected to operate at significantly lower cost than conventional rare earth mines and is positioned as one of the highest-margin rare earth projects in development.
Average Trading Volume: 641,073
Technical Sentiment Signal: Buy
Current Market Cap: £113.1M
See more data about RBW stock on TipRanks’ Stock Analysis page.