South Pacific Metals Corp. Reports Rock Chip Assays with High-Grade Copper up to 21.2% at Ontenu NE
- Written by Media Outreach
Vancouver, British Columbia - Newsfile Corp. - 11 November 2025 - South Pacific Metals Corp. (TSXV: SPMC) (OTCQB: SPMEF) (FSE: 6J00) ("SPMC" or the "Company") is pleased to announce receipt of multi-element rock chip assay results from samples of mineralized structures, at the Ontenu NE prospect within its Osena Project. The Project lies within a major NE-SW corridor known as the Kainantu Transfer Zone, which also hosts the large Kainantu Gold-Copper mine being mined by K92 Mining Ltd. Highlights from Ontenu NE latest rock chips
Figure 1. Ontenu NE area target areas, rock chip results and mapped structures. Refer to Appendix 1 for details on latest results. Refer Figure 2 (Onki Fault area) & Figure 5 (Southern area) To view an enhanced version of this graphic, please visit: https://images.newsfilecorp.com/files/10890/273895_13f8dc02b486bae5_001full.jpg
Figure 2. Onki Creek Fault area with detailed inset at the fault breccia exposure with multiple structures dominant in Au-Cu To view an enhanced version of this graphic, please visit: https://images.newsfilecorp.com/files/10890/273895_13f8dc02b486bae5_002full.jpg
Figure 3. Bifurcating splay structure near the Onki Creek Fault. Massive sulphide with grade of 21.2% Cu, 214g/t Ag and 0.41g/t Au. To view an enhanced version of this graphic, please visit: https://images.newsfilecorp.com/files/10890/273895_13f8dc02b486bae5_003full.jpgOntenu NE latest results The Ontenu NE prospect is part of the wider 5 x 3km epithermal footprint of the Ontenu Prospect. Ontenu NE is a 2 sq km zone with multiple structures outlined by surface mapping and soil geochemical anomalies, up to 1200m strike length (Figure 1). The soil anomalies are currently open to the northwest. Refer Appendix 1 for full table of rock results. Onki Creek Zone at Ontenu NE At the Onki Creek Fault zone area (Figure 2) structures are Au-Cu-Ag dominant and hosted primarily in diorite intrusives. The main fault zone has a true width of approximately 3m, strikes NNE-SSW and dips 70o to the WNW. The fault zone is characterized by silica-clay altered breccia with variable and at times abundant sulphide including pyrite and chalcopyrite. Samples from the zone have returned 8.6 g/t gold, 32 g/t silver & 0.2 % copper from a 1m wide channel sample and 0.41 g/t gold,214 g/t silver & 21.2 % copper from a 0.25m zone of massive sulphide on a splay structure adjoining the fault (Figure 3). Several other near-vertical splay faults from the main Onki Creek Fault, strike N-S to NNW-SSE and are mapped at between 20 and 70cm wide and have returned rock chip sampling grades of 1.21 g/t gold, 131 g/t silver & 12.4 % copper and 0.32 g/t gold, 310 g/t silver & 18.1 % copper (Figure 2 & Figure 4). The splay faults are inferred to link to a second series of NNE-SSW striking structures, which have returned grades up to 1.48 g/t gold and 0.14% copper. Proximal to the Onki Creek Fault, the splays occur within a zone of multiple mineralized structures over at least 19m and overall, the distance from the Onki Creek Fault to the other NNE striking faults is approximately 90m currently interpreted to be a large dilational jog structure and loci for mineralization. 
Figure 4. Onki Creek splay structures striking N-S to NNW-SSE and sub-vertically dipping showing variable width and high-grade copper mineralization grading 12.4% & 18.14% copper respectively To...
- Multi-element results received that complement previously received gold results* (in brackets below) from a 3m wide fault zone & splay structures within a zone of structures about 19m wide at the Onki Fault area (shown as the Onki Fault area in Figure 1 and detailed in Figure 2).
- 21.2% Cu, 214 g/t Ag, (0.41 g/t Au) (0.25m massive sulphide in splay structure)
- 18.1% Cu, 310 g/t Ag, (0.32 g/t Au) (0.7m splay structure)
- 12.4% Cu, 131 g/t Ag, (1.21 g/t Au) (0.2-0.5m splay structure)
- 0.2% Cu, 32 g/t Ag, (8.6 g/t Au) (1m wide channel sample in fault breccia)
- In a separate zone* at Ontenu NE, some 700m west of the Onki Fault, as shown on Figure 1.
- 1.2% Cu, 258 g/t Ag, & 8.65 % Zn, (9.34 g/t Au) in narrow quartz vein (0.25m)
- Mapping and sampling continue.
Figure 1. Ontenu NE area target areas, rock chip results and mapped structures. Refer to Appendix 1 for details on latest results. Refer Figure 2 (Onki Fault area) & Figure 5 (Southern area) To view an enhanced version of this graphic, please visit: https://images.newsfilecorp.com/files/10890/273895_13f8dc02b486bae5_001full.jpg
Figure 2. Onki Creek Fault area with detailed inset at the fault breccia exposure with multiple structures dominant in Au-Cu To view an enhanced version of this graphic, please visit: https://images.newsfilecorp.com/files/10890/273895_13f8dc02b486bae5_002full.jpg
Figure 3. Bifurcating splay structure near the Onki Creek Fault. Massive sulphide with grade of 21.2% Cu, 214g/t Ag and 0.41g/t Au. To view an enhanced version of this graphic, please visit: https://images.newsfilecorp.com/files/10890/273895_13f8dc02b486bae5_003full.jpgOntenu NE latest results The Ontenu NE prospect is part of the wider 5 x 3km epithermal footprint of the Ontenu Prospect. Ontenu NE is a 2 sq km zone with multiple structures outlined by surface mapping and soil geochemical anomalies, up to 1200m strike length (Figure 1). The soil anomalies are currently open to the northwest. Refer Appendix 1 for full table of rock results. Onki Creek Zone at Ontenu NE At the Onki Creek Fault zone area (Figure 2) structures are Au-Cu-Ag dominant and hosted primarily in diorite intrusives. The main fault zone has a true width of approximately 3m, strikes NNE-SSW and dips 70o to the WNW. The fault zone is characterized by silica-clay altered breccia with variable and at times abundant sulphide including pyrite and chalcopyrite. Samples from the zone have returned 8.6 g/t gold, 32 g/t silver & 0.2 % copper from a 1m wide channel sample and 0.41 g/t gold,214 g/t silver & 21.2 % copper from a 0.25m zone of massive sulphide on a splay structure adjoining the fault (Figure 3). Several other near-vertical splay faults from the main Onki Creek Fault, strike N-S to NNW-SSE and are mapped at between 20 and 70cm wide and have returned rock chip sampling grades of 1.21 g/t gold, 131 g/t silver & 12.4 % copper and 0.32 g/t gold, 310 g/t silver & 18.1 % copper (Figure 2 & Figure 4). The splay faults are inferred to link to a second series of NNE-SSW striking structures, which have returned grades up to 1.48 g/t gold and 0.14% copper. Proximal to the Onki Creek Fault, the splays occur within a zone of multiple mineralized structures over at least 19m and overall, the distance from the Onki Creek Fault to the other NNE striking faults is approximately 90m currently interpreted to be a large dilational jog structure and loci for mineralization. 
Figure 4. Onki Creek splay structures striking N-S to NNW-SSE and sub-vertically dipping showing variable width and high-grade copper mineralization grading 12.4% & 18.14% copper respectively To...