DPM Metals Finds More Scale and Grade at Brevene Porphyry South
DPM Metals has extended its Brevene Porphyry South discovery with long, high-grade gold-copper-molybdenum intercepts, including 716.6 metres at 3.30 g/t gold equivalent. Mineralisation now reaches the Chelopech mine concession and remains open in several directions and at depth.
- 716.6 metres at 3.30 g/t AuEq, including 138.6 metres at 5.71 g/t
- 1,054 metres at 2.49 g/t AuEq confirms more than 1,000 metres of vertical mineralisation
- Mineralisation extends onto the Chelopech mine concession
- Up to 15,000 metres of additional drilling planned through 2026
- Preliminary flotation tests produced copper-gold concentrates grading 10% to 25% copper
Long Intercepts Expand Brevene’s Mineralised Footprint
DPM Metals Inc. (TSX: DPM, ASX:DPM) has delivered some of its strongest results yet from the Brevene Porphyry South discovery in Bulgaria, with two previously reported holes extended into exceptionally long mineralised intervals. Hole EX_BRES_555_02A now returns 716.6 metres at 3.30 g/t AuEq from 1,357 metres downhole, including 138.6 metres at 5.71 g/t AuEq. The interval contains 1.63 g/t gold, 1.58% copper and 17.09 g/t molybdenum, with the higher-grade section carrying 2.83 g/t gold and 2.72% copper.
Hole EX_BRESPO_03 adds a second substantial result: 1,054 metres at 2.49 g/t AuEq from 1,172 metres, including 465 metres at 3.02 g/t AuEq. DPM said the hole demonstrates more than 1,000 metres of vertical gold-copper mineralisation. Both holes ended because of technical limitations rather than a clear geological boundary, and both terminated in mineralisation.
Drilling Reaches the Chelopech Concession
The significance of the latest drilling is not limited to the headline grades. DPM says the potassic alteration envelope now exceeds 500 metres by 500 metres and extends more than 1,000 metres vertically, with mineralisation reaching the central to northwestern boundary of the Chelopech mine concession. The system remains open to the north, south, west and at depth, where it is interpreted to plunge southwest.
Additional holes have filled out that picture. EX_BRESPO_03A returned 707 metres at 1.08 g/t AuEq, while EX_BRESPO_05 delivered 328 metres at 3.28 g/t AuEq and remains in visible mineralisation. EX_BRESPO_06, which confirmed the northward extension onto the mine concession, returned 540 metres at 1.31 g/t AuEq. Several other holes are still in progress, meaning the reported intervals are incomplete and further assays are pending.
Preliminary Metallurgy Supports Conventional Processing
Early metallurgical work provides a second, still preliminary, piece of support for the discovery. Open-cycle rougher-cleaner flotation tests on three composite samples produced copper-gold concentrates ranging from 10% to 25% copper and approximately 12 g/t to 20 g/t gold at a primary grind size of P80 75 microns. One high-molybdenum composite also returned a 0.4% molybdenum cleaner concentrate, although the company says further work is required to assess whether a separate molybdenum product is viable.
The testwork remains at an early stage. Reagent optimisation, improved separation of chalcopyrite from pyrite and detailed analysis of deleterious elements are still outstanding. DPM says arsenic was present at trace levels in the three composites and is not currently expected to reach penalty thresholds, but that conclusion will need to be tested as the programme advances.
15,000 Metres of Follow-Up Drilling Planned
DPM plans up to 15,000 metres of additional drilling from the Chelopech concession through the end of 2026, with further delineation scheduled for 2027. The programme is intended to test the northern and western extensions and the depth potential, while supporting internal mineral resource estimates and technical evaluations. In parallel, the company is advancing the conversion of the Brevene exploration licence into a mining concession; a final geology report containing a technical and economic assessment was submitted to Bulgaria’s Ministry of Energy in late August, with regulatory review ongoing.
That development pathway remains prospective rather than approved. The release does not report a mineral resource, reserve, economic study or mining concession, and the drill widths are downhole lengths rather than true widths. The next meaningful test will be whether the continuing assays, metallurgical optimisation and concession process can turn an impressive exploration system beside existing infrastructure into a defined and permitted mine-development opportunity.
Bottom Line?
The discovery now has scale, grade and early flotation support, but the investment case still depends on converting long downhole intercepts into a resource and securing the required approvals.
Questions in the middle?
- Will ongoing drilling establish a coherent mineral resource across the open northern, western and deeper extensions?
- Can metallurgical optimisation improve recoveries and support a commercially attractive copper-gold and possible molybdenum flowsheet?
- How quickly will DPM progress from regulatory review to a mining concession and formal technical evaluation?