LE Minerals Confirms Upper Aquifer Lithium Mineralisation Up to 114 mg/L at White Plains

By Mining Hub News Desk
9 September 2026, 7:29 p.m. EDT 2 min read
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White Plains project location. Source: LE Minerals Limited

LE Minerals Limited has completed a direct push drilling and surface auger sampling program at the White Plains Lithium Brine Project in Utah, returning lithium assay results of up to 114 mg/L from the shallow Upper Aquifer.

The program involved 12 direct push drill holes completed to a depth of 15 metres on an approximate two-kilometre grid across the project claims area. Each hole intercepted a standing column of brine from surface to the base, yielding lithium grades ranging from 52.1 mg/L to 114 mg/L. Brine samples taken from the base of the holes between 13 and 15 metres depth demonstrate that lithium grades remain similar to surface values and confirm that mineralisation extends to at least 15 metres.

In conjunction with the drilling, LE Minerals carried out a surface auger sampling program to two metres depth on an approximate two-kilometre grid to in-fill previous sampling and extend coverage to southern claims. In-fill samples returned lithium grades between 55.5 mg/L and 101.5 mg/L, though five southernmost surface auger sites failed to intercept surface brines. The company noted that its southernmost claims within Toole County were not renewed on 1 September 2026.

The latest results support the company's geological model for the project, which is located approximately 200 kilometres west of Salt Lake City within a landlocked hypersaline salt pan. Prior to the current drilling, LE Minerals undertook passive seismic and Magnetotelluric geophysical surveys at White Plains in 2025 that identified both a shallow Upper Aquifer and a Deep Aquifer. Those geophysical surveys indicated that the Upper Aquifer persists to at least 30 metres depth across the project area.

In June 2026, LE Minerals expanded the White Plains footprint by securing an additional approximately 2,340 hectares of mineral leases from the State of Utah's School and Institutional Trust Lands Administration under an exploration agreement with an option to lease. The company formerly operated under the name Lithium Energy Limited before receiving shareholder approval in May 2026 to adopt its current name while retaining its existing stock exchange ticker code.

Following the completion of the drilling and sampling programs, LE Minerals plans to define a maiden JORC Mineral Resource Estimate for the lithium mineralisation hosted within the Upper Aquifer at White Plains. 

Read the full announcement: Lithium Mineralisation in Upper Aquifer at White Plains