Delta Lithium Acquires Mortimer Hills to Expand Yinnetharra Project

Delta Lithium

Strategic purchase from Zeus Resources strengthens Delta’s position around Thirty-Three Supersuite

Delta Lithium is set to expand its flagship Yinnetharra lithium–tantalum project in Western Australia through the acquisition of the Mortimer Hills project from Zeus Resources. The asset lies just 5 km southeast along strike from Delta’s Malinda deposit and provides significant exploration upside.

The Mortimer Hills tenement adds around 4 km of strike along the Leake Springs Metasediment Unit, the same geological formation hosting Delta’s Malinda and Jameson resources. Combined, these deposits already account for 21.9 million tonnes of lithium.

Delta’s Managing Director James Croser described the acquisition as a “strategic addition” that will support ongoing exploration and eventual reserve delineation.

“The extra tenure along strike from Malinda provides a compelling opportunity to build upon our geological understanding and advance mining studies,” Croser said.

Royalty-Backed Deal with Exploration Upside for Zeus

Under the agreement, Delta will pay $150,000 in cash, and Zeus will retain a structured royalty tied to the definition of a JORC lithium resource of at least 0.8% Li₂O within four years. This deal allows Zeus to strengthen its balance sheet while maintaining upside potential.

“It’s a win-win,” said Zeus Chairman Alvin Tan, noting that the sale lets Zeus focus on its remaining assets while retaining exposure to future success at Mortimer Hills.

Delta plans to conduct systematic exploration across untested targets along the Thirty-Three Supersuite granite margin, believed to be a key contributor to lithium and tantalum mineralisation in the region.

“Delta’s dominant position surrounding the Thirty-Three Supersuite granites has been enhanced,” Croser added.

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