⚒️ Southern Hemisphere Mining Limited has commenced an expanded diamond drilling program at its 100% owned Llahuin Copper-Gold-Moly Project in central Chile.

Llahuin hosts a 218Mt JORC M+I+I resource and this program targets further expansion of the 3km strike copper/gold/molybdenum porphyry system.

Chairman Mark Stowell commented:

“We have been looking forward to drill testing deeper targets at the Llahuin Copper-Gold Project, and now we have some interesting core emerging from assay.”

Program Overview

The campaign covers approximately 1,000 metres of diamond drilling across three key prospects: Ferro South, Ferro Central, and Cerro. Each hole targets lateral and vertical extensions of mineralisation previously intersected in RC holes that were halted by groundwater ingress.

Figure 1. Drilling at Cerro

View the Full PDF of the ASX Announcement

Recent Fieldwork

This including geological mapping, soil and rock-chip geochemistry, and reinterpretation of historical drilling – points to a large-scale copper system with multiple mineralised centres. Drill pad clearing at Ferro South has already exposed visible oxide copper at surface, reinforcing near-surface potential. Strong structural and lithological controls also appear to localise higher-grade zones within the broader porphyry system.

Figure 2. Plan view showing the locations of 2024 RC drillholes. Holes in white are 2023 drill collars.

Target holes

This program extends four RC holes that ended in mineralisation:

  • RDLLA134 – extends from 204m, which ended in higher-grade mineralisation (24m @ 0.78% CuEq from 180m) – refer figure 2 below and page 7 for CuEq formula.

Figure 3. Chalcopyrite mineralisation in RDLLA134 at 212.6m depth

* Cautionary Statement: Visual estimates of mineral abundance should never be considered a proxy or substitute for laboratory analysis where concentrations or grades are the factor of principal economic interest. Visual estimates may also provide no information about impurities or deleterious physical properties relevant to valuations.

  • 24LHRD064 – extends from 104m, which returned 104m @ 0.37% CuEq from surface to EOH, including 44m @ 0.50%CuEq from 22m.

Figure 4. Quartz vein with Molybdenite in 24LHRD064 at 118.8m depth

Figure 5. Chalcopyrite in 24LHRD064 at 183m depth

  • 24LHRD065 – extends from 105m, which returned 105m @ 0.71% CuEq from surface to EOH, including 26m @ 1.0% CuEq from 78m.
  • 24LHRD055 – extends from 83m, which returned 81m @ 0.53% CuEq from 2m to EOH.

Figure 6. Core tray 59 from hole 24LHRD065

Key Objectives

  • Expand known oxide copper mineralisation at Ferro South and Ferro Central.
  • Test strike and depth extensions beneath shallow oxide zones.
  • Evaluate porphyry sulphide targets with potential for higher-grade copper-gold mineralisation

Geological Context

Llahuin sits within a highly prospective belt of central Chile known for world-class porphyry copper deposits. Mineralisation is hosted in a multi-phase intrusive complex with classic potassic, phyllic, and argillic alteration – hallmarks of a fertile porphyry system.

Near-surface oxide copper – malachite, chrysocolla, and atacamite – extends across multiple target areas, with recent surface exposure confirming continuity. Beneath this oxide blanket, the Company is targeting primary sulphide mineralisation (chalcopyrite and bornite) with potential for higher copper grades. Anomalous molybdenum pathfinder elements and favourable alteration signatures support the interpretation of significant exploration upside.

Next Steps

Drilling is underway. First assay results are expected within the coming weeks and the Company will provide updates as results are received and interpreted.

Diamond drilling at Llahuin – Q2 2026

The Full PDF is available below.

View the Full PDF of the ASX Announcement
 
Competent Person Statement
The information in this announcement that relates to copper and gold exploration results for the Company’s Projects is based on information compiled by Mr Adam Anderson, who is a Member of The Australasian Institute of Mining and Metallurgy and The Australian Institute of Geoscientists. Mr Anderson has sufficient experience which is relevant to the style of mineralisation and type of deposit under consideration, and to the activity which he is undertaking to qualify as a Competent Person as defined in the 2012 Edition of the “Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves”. Mr Anderson is a consultant for the Company and consents to the inclusion in the announcement of the matters based on his information in the form and context in which it appears.

News Release
Date: 06 May 2026 | ASX Code: SUH | Frankfurt Exchange: NK4

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Southern Hemisphere Mining Limited is an experienced minerals explorer in Chile, South America.

Chile is the world’s leading copper producing country and one of the most prospective regions of the world for major new copper discoveries. The Company’s projects include the flagship Llahuin Porphyry Copper-Gold-Moly Project and the Los Pumas Manganese Project, both of which were discovered by the Company.

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