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Delta Lithium Boosts Mt Ida Resource and Unlocks Rubidium Upside as Cash Reserves Top $160m

Story Highlights
  • Delta Lithium upgraded the Mt Ida resource, boosting lithium, tantalum and high-grade rubidium with stronger confidence classifications.
  • Rubidium recoveries, full mining permits, external drilling support and strong cash plus investments fortify Delta’s growth runway.
  • Looking for the best stocks to buy? Follow the recommendations of top-performing analysts.
Delta Lithium Boosts Mt Ida Resource and Unlocks Rubidium Upside as Cash Reserves Top $160m

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The latest announcement is out from Delta Lithium Limited ( (AU:DLI) ).

Delta Lithium Limited reported a significant quarterly update highlighted by an upgraded Mineral Resource Estimate at its Mt Ida Lithium Project, now standing at 14.8 million tonnes at 1.21% Li2O with substantial tantalum and notably high-grade rubidium credits, including 7.7 million tonnes in the Measured and Indicated categories. The company has demonstrated that its whole-of-ore flotation flowsheet can recover about 90% of rubidium in the mica pre-float stage, positioning rubidium as a potential value-adding co-product that could materially enhance project economics amid rising global interest in the metal, which features on critical minerals lists in markets such as the United States and Japan. Mt Ida is fully permitted for both open pit and underground mining, and Delta is progressing downstream processing and vertical integration studies, while also benefitting from Ballard Mining’s intensive gold drilling at Mt Ida, which provides incremental lithium, tantalum and rubidium data at low cost and improves resource confidence. With a cash balance of $54 million and listed investments of around $108 million as at 31 December 2025, Delta says it is well positioned to advance Mt Ida, continue drilling at its Yinnetharra project to link and extend existing resources, and pursue further growth opportunities across its lithium portfolio.

The most recent analyst rating on (AU:DLI) stock is a Hold with a A$0.29 price target. To see the full list of analyst forecasts on Delta Lithium Limited stock, see the AU:DLI Stock Forecast page.

More about Delta Lithium Limited

Delta Lithium Limited is an Australian lithium-focused mining company listed on the ASX, with key projects at Mt Ida and Yinnetharra in Western Australia. The company targets hard-rock lithium resources and associated critical minerals such as tantalum and rubidium, aiming to strengthen its position in the battery metals supply chain and leverage growing global demand for energy transition materials.

Average Trading Volume: 1,165,618

Technical Sentiment Signal: Buy

Current Market Cap: A$197.2M

Find detailed analytics on DLI stock on TipRanks’ Stock Analysis page.

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