Announcement • Sep 17

Oreterra Metals Corp. Concludes Phase 1 Drilling At Trek South with Visible Copper Minerals and Broad Intercepts of Porphyry-Style Alteration

Oreterra Metals Corp. has now concluded the Phase 1, first-ever drill program at its Trek South porphyry copper-gold prospect, strategically located in B.C.'s Golden Triangle adjacent to the southeast of Teck-Newmont's Galore Creek joint venture. 13 holes were drilled during the program, 11 on Trek South 'A' Zone and 2 on Trek South 'Toe' Zone, for a total of 4,500 metres. Assay results are anticipated later in the fall and will be used to guide a Phase 2 program in planning for 2027. An orderly camp demob is underway ahead of deteriorating weather conditions with key camp infrastructure including tent pads, materials and drill pads left in place to facilitate both an earlier start and lower costs for the 2027 field season. Central holes TS26-06, TS26-09 and TS26-10 (Trek South 'A' Zone) all delivered multi-hundred metre intercepts of strong to intense porphyry-style alteration. Alteration in the above three holes is accompanied by visually encouraging observations of copper minerals including one or several of bornite ± chalcopyrite ± chalcocite ± malachite ± chrysocolla ranging from trace amounts over down-hole widths spanning several hundred metres to locally appreciable amounts over ten of metres. The above three holes are believed to lie above an underlying source intrusion which will be a key target of the Phase 2 program in planning for 2027. The presence of bornite and intergrown chalcocite in the system is highly suggestive of a high-temperature magmatic (i.e. porphyry) source at depth. Field work on the east side of Trek South glacier has identified a large new area of intensely altered boulders bearing some of the most abundant visible copper mineralization seen on the property to date, now designated 'Trek South C Zone'. Planning to drill this is in 2027 is underway. Along with the Trek South 'B' Zone identified on the southwest side of the glacier in August 2025, strong porphyry-style alteration often accompanied by visible copper mineralization is now known to be present around almost the entire 1 km2 perimeter of the Trek South glacial basin. Drilling of two short holes on the Trek South 'Toe' Zone, believed to represent an Eskay Creek /VMS style of mineralization, has returned visually highly promising results including multi-metre intersections of strong chalcopyrite mineralization. Assays of Toe Zone surface exposures have in the past returned high-grade Cu, Au, Ag, Zn & Sb (antimony) values. The drill holes discussed in this news release are being sampled from top to bottom by sawing the core length-wise in half with a rock saw and submitting ½ of the sawn core for gold analyses by fire assay and multi-element analyses by an initial four-acid digestion followed by ICP-MS (Inductively Coupled Plasma-Mass Spectrometry) analysis. The maximum sample length is 1.5 metres. The samples are being sent to the ALS prep facility in Terrace and laboratory in Vancouver, BC for analysis. A rigorous quality assurance and quality control program is in place in the form of alternating blanks, Certified Reference Material standards, and pulp or coarse reject duplicates inserted at every 10th position in the sample series. The technical information in this news release has been reviewed and approved by John Biczok, P.Geo., Vice President, Exploration for Oreterra Metals Corp. and a Qualified Person as defined by National Instrument 43-101.

Oreterra Metals Corp. Stock Price

OTMC Share Price Performance

OTMC Community Narratives

Trending Discussion

Recently Updated Narratives

Snowflake Analysis

Oreterra Metals Corp. Key Details

About OTMC

Recent OTMC News & Updates

Oreterra Metals Corp. Concludes Phase 1 Drilling At Trek South with Visible Copper Minerals and Broad Intercepts of Porphyry-Style Alteration

New minor risk - Share price stability

Oreterra Metals Corp Starts Drill Camp Construction At Trek South Porphyry Copper-Gold Prospect

Recent updates

Oreterra Metals Corp. Competitors

Carlin Gold

Stakeholder Gold

Volta Metals

Gunpoint Exploration