Mr. Kevin Keough reports

ORETERRA WRAPS UP PHASE 1 DRILLING AT TREK SOUTH WITH VISIBLE COPPER MINERALS AND BROAD INTERCEPTS OF PORPHYRY-STYLE ALTERATION ABOVE POSTULATED INTRUSION; PLANNING FOR 2027 PHASE 2 UNDERWAY, ASSAYS PENDING

Oreterra Metals Corp.'s phase 1, first-ever drill program at its Trek South porphyry copper-gold prospect, strategically located in British Columbia's Golden Triangle adjacent to the southeast of Teck-Newmont's Galore Creek joint venture, has now concluded. Thirteen holes were drilled during the program -- 11 on the Trek South A zone and two on the 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 under way 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.

Program highlights:

• Multihundred metre porphyry-style alteration intercepts in central holes: Central holes TS26-06, TS26-09 and TS26-10 (Trek South A zone) all delivered multihundred metre intercepts of strong to intense porphyry-style alteration.
• Copper minerals accompany the alteration: Alteration in the above three holes is accompanied by visually encouraging observations of copper minerals, including one or several of bornite plus or minus chalcopyrite plus or minus chalcocite plus or minus malachite plus or minus chrysocolla ranging from trace amounts over downhole widths spanning several hundred metres to locally appreciable amounts over ten of metres.
• Underlying source intrusion is zeroed in and primed for drilling: 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 (that is, porphyry) source at depth.
• Abundant copper minerals at the new Trek South C zone: Fieldwork on the eastern 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 in 2027 is under way.
• Trek South target area increases in size: Along with the Trek South B zone identified on the southwestern 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 one-square-kilometre perimeter of the Trek South glacial basin.
• Trek South Toe zone first-ever drill intersections: 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 multimetre intersections of strong chalcopyrite mineralization. Assays of Toe zone surface exposures have in the past returned high-grade copper, gold, silver, zinc and antimony values.

"Trek South continues to be exceptionally encouraging as a new, large-scale porphyry prospect," said Kevin Keough, chief executive officer. "The phase 1 drill program has given us everything we expected to see, shy of the actual location of a source intrusion, though we now have a very good sense as to where it may be. The visually exciting alteration and mineralization observed in drilling at Trek South A zone and Toe zone, coupled with the new prospecting results at the B and C zones, have provided the basis for advancing to phase 2, and we're very much looking forward to a return to the property next year, with camp infrastructure and drill pads remaining in place to facilitate this."

Quality assurance/quality control

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 one-half of the sawn core for gold analyses by fire assay and multielement 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, B.C., for analysis. A rigorous QA/QC 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.

Qualified person

The technical information in this news release has been reviewed and approved by John Biczok, PGeo, vice-president, exploration, for Oreterra Metals and a qualified person as defined by National Instrument 43-101.

About Oreterra Metals Corp.

Oreterra Metals is a TSX Venture Exchange-listed mineral exploration company focused primarily on copper and gold. The company holds several wholly owned porphyry copper-gold prospects in British Columbia's Golden Triangle, the most significant of which is the large-scale Trek South prospect, only recently revealed by glacial ice melt, located adjacent to the southeast of Teck-Newmont's Galore Creek project. Additional wholly owned Oreterra interests include two former producers in Nevada: the Kinkaid claims in the Walker Lane trend covering numerous shallow gold-copper-silver workings over what is believed to be one or more porphyry centres; and the Scossa mine property in the Sleeper trend, which is a former high-grade gold producer. The company also holds a 100-per-cent interest in the large-scale Lundmark/Akow Lake gold-copper property adjacent to the northwest of the Musselwhite mine, where drilling by the company has produced highly encouraging, broad VMS-style (volcanogenic massive sulphide) gold-copperi ntersections. Oreterra also retains a continuing interest in several properties, including a 2-per-cent net smelter return royalty on McEwen Mining's Hislop gold property in Ontario and a 2-per-cent NSR royalty on Enduro Metals' Newmont Lake gold-copper-silver property in British Columbia. Technical presentations on each of the Kinkaid, Scossa and Lundmark/Akow Lake properties, written by J. Biczok, PGeo, are available on Oreterra's website.

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