Ballymore Launches Deep MT Survey at Dittmer to Probe Hidden Copper-Gold System

Deep MT Survey Aims to Uncover Large-Scale Porphyry System

Ballymore Resources (ASX:BMR) has commenced a 2.5-kilometre deep Magnetotelluric (MT) survey at its flagship Dittmer Project in Queensland, targeting a potentially concealed porphyry copper-gold system beneath the historic Dittmer gold mine. The survey, supported by two Queensland Government grants totaling A$383,000, is designed to peer several kilometres beneath the surface, providing a three-dimensional resistivity image that could reveal the core of a large mineralised system.

Previous deep drilling in 2025, including hole DTDD063, encountered alteration and brecciation features indicative of the periphery of a porphyry-style hydrothermal system, though it missed the interpreted magnetic core. Magnetic susceptibility data suggested the hole passed adjacent to the main magnetic source, justifying this next phase of geophysical targeting. The MT survey data will be integrated with existing drilling, magnetic, geological, and structural datasets to refine and rank future drill targets.

Parallel Underground Development and Resource Drilling

While the MT survey unfolds, Ballymore is advancing underground development at the historic Dittmer mine to establish access for approximately 3,000 metres of resource drilling planned in the second half of 2026. This includes constructing a southern exploration drive to target the fault-displaced southern extensions of the high-grade Duffer Lode, with underground drilling expected to accelerate resource definition towards a maiden Mineral Resource Estimate targeted for Q4 2026.

Underground sampling has already returned impressive grades, with historic backfill samples up to 81.7 g/t gold and channel samples from remnant pillars showing individual assays as high as 207 g/t gold, 2.97% copper, and 76 g/t silver. Ballymore plans to recover a bulk sample for third-party processing, which will provide critical metallurgical and economic data to support potential mine restart studies. Recent metallurgical testwork has delivered promising recoveries of gold (up to 99%), silver, and copper, reinforcing the project’s development potential.

Dittmer’s District-Scale Copper-Gold Potential

The porphyry exploration program complements Ballymore’s advancing high-grade gold strategy by adding a large-scale copper-gold opportunity. The company interprets Dittmer’s geology, alteration, and geochemistry as consistent with a concealed porphyry system, supported by nearby known porphyry-style copper-gold-molybdenum deposits such as the Copperhead prospect 5 km west and the Andromache prospect 20 km south.

MT geophysics offers a deeper and more definitive view than conventional near-surface methods like induced polarisation and magnetics, which lose resolution at depth. This technique has been instrumental in discovering world-class porphyry deposits internationally, including the Hugo Dummett mine in Mongolia.

Well-Funded Exploration Pipeline Amid Active Queensland Campaign

Ballymore’s exploration activities across its Queensland portfolio are well backed following a fully subscribed $3.2 million entitlement offer and a $2 million placement earlier this year, fueling programs at Dittmer and other projects like Ruddygore and Ravenswood. The company is poised for a busy second half of 2026, with the MT survey expected to complete this month, followed by data processing and target ranking in Q3.

Additional fieldwork is planned across the Dittmer corridor, including further evaluation of the Mount Quandong target. Ballymore also aims to drill test the Andromache porphyry target later this year, expanding its district-scale copper-gold exploration footprint.

With underground development, resource drilling, bulk sampling, and deep geophysical targeting progressing simultaneously, Ballymore is juggling multiple potential value catalysts that could reshape the prospects of this historically high-grade Queensland mining district.