Australian Critical Minerals Limited has returned assay results from drill hole FL_DDH002 at the Flint Project in Peru, confirming a near-surface high-sulphidation epithermal target and pointing toward a larger copper-molybdenum-gold porphyry system at depth.

The four-hole Phase 1 diamond drilling program totaled 1,773.3 metres, with hole FL_DDH002 extended to a final depth of 657.7 metres following encouraging alteration observations. Logging and assay data from the upper section of the hole, between 0.0 and 54.0 metres, intercepted advanced argillic alteration alongside anomalous epithermal pathfinder elements including arsenic, antimony, tellurium, thallium, and silver.

Between 190 and 657.7 metres, the hole transitioned from propylitic alteration into strong phyllic alteration carrying over 10 percent pyrite, accompanied by low-level molybdenum and copper values. This downhole geochemical vector suggests the hole tested the outer halo of a concealed porphyry system.

To fund near-term exploration and maiden drilling across the asset, the company completed a $3 million share placement in January 2026. Previous exploration work at the project included advanced NSAMT geophysical surveys and 3D inversion modelling to map resistive bodies and define initial drill targets.

Following the initial results, Australian Critical Minerals engaged geospatial consultants Global Ore Discovery to integrate assay data, geophysics, and historical rock chip sampling from the southern portion of the project. That analysis identified two large conductive targets within the audio-magnetotelluric 3D model, designated Lithocap Target 1 covering 1,000 by 500 metres and Lithocap Target 2 covering 800 by 400 metres. These anomalies are interpreted as potential barren caps concealing porphyry mineralization at depth.

Elsewhere in the surrounding district, environmental approval was secured for a 10,315-metre diamond drilling program at the Portachuelos area of the Igor project in August 2026.

The company is now designing a follow-up exploration program to test the newly identified porphyry and epithermal targets and establish priority drill locations across the Flint project.

Read the full announcement: Flint Results Highlight Epithermal and Porphyry Potential