Delta Lithium Boosts Yinnetharra Tenure to Over 3,100km² After $450k Deal

Strategic Expansion in a Growing Lithium Province

Delta Lithium Limited (ASX: DLI) has taken a decisive step to broaden its resource base with the acquisition of the Aston Project from Minerals 260 (ASX: MI6). This move adds approximately 1,750 square kilometres to Delta’s existing Yinnetharra Lithium and Tantalum Project, pushing its total landholding to over 3,100 square kilometres in the highly prospective Upper Gascoyne region of Western Australia.

The Aston Project, comprising 15 granted exploration licences, sits adjacent to Delta’s current tenements and lies just 2 kilometres along strike from the high-grade Jameson deposit, which boasts a mineral resource estimate of 0.8 million tonnes at 1.66% lithium oxide. This proximity to known lithium mineralisation within the same host rocks significantly enhances the exploration potential of the newly acquired ground.

Building on a Solid Resource Base

The Yinnetharra Project already hosts a substantial mineral resource, with the latest independent estimate revealing 21.9 million tonnes at 1.0% lithium oxide and 39.4 million tonnes at 102 parts per million tantalum pentoxide. The acquisition of Aston not only expands the footprint but also consolidates Delta’s position as the dominant player in this emerging lithium province, providing a contiguous land package that simplifies future exploration and development efforts.

Delta’s Managing Director, James Croser, highlighted the strategic importance of the acquisition, noting that it complements a recent bolt-on purchase at Mortimer Hills and positions the company to systematically explore early-stage lithium-caesium-tantalum (LCT) anomalies on the new ground. The company plans to initiate geochemical sampling, mapping, and geophysical surveys immediately after settlement, alongside hydrogeological programs targeting deep water paleochannels, potential conduits for mineralisation.

Transaction Details and Forward Outlook

The acquisition terms include a $450,000 cash payment and a 1.5% net smelter return royalty on any future production of lithium, cesium, beryllium, rubidium, or tantalum. This structure aligns the interests of both parties in the project’s long-term success while preserving Delta’s financial flexibility.

With a strengthened landholding and a growing resource base, Delta Lithium is well positioned to advance the Yinnetharra Project towards feasibility. The company’s technical team, leveraging two years of operational experience in the region, is set to accelerate exploration activities aimed at delineating reserves and unlocking value for shareholders.

As global demand for lithium intensifies, driven by the electric vehicle and energy storage sectors, Delta’s expanded footprint in a proven lithium province could prove pivotal. The coming months will be critical as exploration results and feasibility studies begin to shape the project’s trajectory.