
Oroco Drills 26.48m of 1.18% CuEq in South Zone
GlobeNewsWire
Published: Aug 06, 2026, 08:41 PM GMT+9
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Oroco Resource Corp. (TSX-V: OCO; OTCQB: ORRCF) ("Oroco" or the "Company") is pleased to report the third set of assay results from its Phase 2 resource drilling program focused on the South Zone at its Santo Tomás copper project, Choix, Sinaloa, Mexico. Results are reported for drill holes S027 and S030 through S034. The Company continues drilling with three rigs on site.
Holes S031 and S034 confirmed the local westward extension of mineralization beyond the current inferred block model limits in the central western portion of the South Zone. Hole S031 is a hole drilled westwards at -65 degrees from the same pad as S029 (previous release). The hole intersected near-surface mineralization and drilled out of inferred material, extending newly identified mineralization westwards. Mineralized outcrops to the west of the intercept suggest a wedge of mineralization extending up to 330m in that direction.
Hole S033 was drilled at -50 degrees eastwards from a pad located 50m to the east of S034. Intersected mineralization included 26.48m @ 0.90% Cu / 1.18% CuEq* from a depth of 48.0m. Additional intercepts are included below.
Hole S034 was collared 80m north of S031 and drilled westwards at -60 degrees. The hole displayed mineralization similar to that observed in S031 and, as with S031, intersected mineralization outside the inferred material. Surface mineralization to the west again supports a wedge of additional mineralization to the west.
Hole S027 is a vertical hole drilled from the same pad as S030 and S032. The mineralization observed in this hole, combined with results from S032 and S030 and surface expressions of copper oxides, essentially defines the southern limit of the South Zone. Holes S030 and S032 have locally defined a southern limit of mineralization in the South Zone.
Hole S030 , located on the same pad as S032, was drilled at -50 degrees towards 280 ° . A 49m intercept of mixed oxide-sulphides was logged from 12m depth. Total copper assay over the interval returned 0.80% CuTot . Additional sulphide mineralization below this interval is included in Table 2.
Hole S032 is located on the southernmost pad in the South Zone (S027 pad) and was drilled at -45 degrees towards 150 ° . A mixed oxide-sulphide zone was observed from 0 to 49m depth. The total copper assay over the interval 36 to 49m returned 0.80% CuTot and 0.31% CuSol (total and soluble copper respectively). Sulphide mineralization below this interval is reported in Table 2.
" These Phase 2 results support the potential for additional resource outside of the 2024 Technical Report block model and continue to support the approach being taken at Santo Tomás ," said Charles Cryer , Oroco CEO . " Additional d rilling to date in the southern half of the South Zone supports the potential for a higher-grade zone as first identified in Phase 1 drill hole S018. Drilling to the west also has the potential for additional tonnage beyond the inferred material classification limits."
Soluble copper assays for Hole S027 were received and returned a 10.5 m mixed oxide-sulphide intercept from 13.5m depth with 0.53% CuTot and 0.17% CuSol . At this stage, there is no technical report that incorporates a plan for a copper leach recovery circuit. The Company has therefore elected not to report a copper equivalent grade for significant intervals of mixed oxide and sulphide mineralization.
Source: GlobeNewsWire
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