Mr. Kevin Keough reports

ORETERRA SELLS OPTION TO BUY DOWN NEWMONT LAKE ROYALTY TO ENDURO METALS FOR SHARES AND CASH, HIGHLIGHTING GOLDEN TRIANGLE ASSET VALUE

Oreterra Metals Corp. has entered into an amendment agreement with Enduro Metals Corp. with respect to the Jan. 31, 2022, royalty agreement in respect of Oreterra's 2-per-cent net smelter return (NSR) royalty interest in Enduro's 688-square-kilometre Newmont Lake project, located adjacent to the south to Oreterra's Trek-Andrei property. In exchange for the immediate consideration payable to Oreterra noted below, the agreement grants Enduro an option which, if executed, would incur the very significant further cash payments noted below and reduce the existing 2-per-cent NSR royalty by 50 per cent to 1 per cent.

"This transaction reinforces the underlying value of our Golden Triangle assets, delivering immediate consideration through shares and cash valued at approximately $1.2-million at current market prices while preserving meaningful long-term upside through a potential $21.5-million in staged and advanced royalty payments and retaining a 1-per-cent NSR for future exposure. We view this as a compelling value proposition for Oreterra's shareholders and believe it provides a clearer path for Enduro's team to advance their projects," stated Stephen Burega, president.

"In addition, we are highly encouraged by this momentum and greatly anticipate our upcoming work program at Trek South, a newly drill-permitted, large-scale porphyry copper-gold target, where strong, coincident geological, geochemical and geophysical anomalies define a kilometre-scale system and present a compelling discovery opportunity," added Mr. Burega.

Immediate consideration valued at approximately $1.2-million

In consideration for Oreterra entering into the agreement, Enduro will issue to Oreterra: (i) 3.9 million common shares subject to a hold period where 25 per cent of the shares will be released in equal 25-per-cent tranches every six months following the date of the agreement; and (ii) make cash payments totalling $550,000 in various tranches over two years with $175,000 due within three months from closing of the transaction. Of the cash consideration, $250,000 may be satisfied through the issuance of common shares of Enduro.

Potential future consideration of $21.5-million if the royalty buydown option is fully executed:

• A $500,000 cash payment upon delivery of a maiden National Instrument 43-101-compliant resource estimate, of which up to $300,000 may be satisfied through the issuance of common shares of Enduro;
• A $1.75-million cash payment and a $1.75-million advance royalty payment (credited against future royalties) upon completion of the first feasibility study in respect of the property;
• A $10-million cash advance royalty payment upon a decision to proceed toward mine permitting;
• A one-time payment of $8-million prior to the commencement of extraction to buy back 50 per cent of the existing 2-per-cent NSR royalty.

The transaction is subject to TSX Venture Exchange approval.

Correction to March 2, 2026, press release

The company wishes to correct compensation numbers in relation to the first closing of its previously closed $9.7-million non-brokered private placement.

On the first closing, the company paid 10 eligible finders. Nine received cash fees in the aggregate of $404,517.05 and 828,751 broker warrants. Each broker warrant entitles the holder thereof to acquire one additional common share of the company at an exercise price of 60 cents per share for three years following the closing of the offering. The 10th finder received 18,000 hard-dollar units in lieu of cash compensation of $8,100. The cash fees and broker warrants were erroneously disclosed at $409,917.05 and 840,751 respectively, in the March 2, 2026, press release.

About Oreterra Metals Corp.

Oreterra Metals is a TSX-V-listed mineral exploration company focused primarily on copper, gold and silver. The company holds several wholly owned porphyry copper-gold prospects in British Columbia's Golden Triangle, the most significant of which is the newly identified Trek South prospect located to the southeast of Teck-Newmont's Galore Creek project, currently undergoing prefeasibility studies. Following a highly successful $9.7-million financing closed in March, a maiden two-phase, approximately 10,000-metre drill program at Trek South is now fully financed for completion this summer. Drilling will test a 1.6-kilometre-wide zone of intense porphyry-style alteration, mineralization and underlying coincident strong IP (induced polarization), MT (magnetotelluric) and magnetic anomalies exposed by recent glacial retreat. In addition, the first significant exploration work since 2007 is now planned for Oreterra's JW porphyry prospect, located to the northwest of the Galore Creek deposits.

Additional wholly owned 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 past drilling by the company returned highly encouraging, broad VMS-style (volcanogenic massive sulphide) gold-copper intersections. Oreterra also retains a continuing interest in several properties, including a 2-per-cent NSR 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.

We seek Safe Harbor.