Coverage stock @SHMining (ASX: SUH) has initiated a 2,000 m diamond drilling program at Ferro South within its Llahuin Copper Project in Chile. Initial assays are expected late November. The key potential development is the copper isotope study, which has identified a deeper isotopic vector pointing toward a potential feeder zone within the broader Cerro–Ferro system. Isotope vectoring is an advanced exploration tool normally used in major porphyry programs, and its application here suggests the system may be vertically zoned with a more significant copper‑gold centre at depth. Selected holes may extend to ~500 m depending on core observations – as SUH drills for system‑scale understanding rather than incremental extensions. Llahuin currently hosts 218 Mt @ 0.38% CuEq.