Mr. Brad George reports

OROSUR ANNOUNCES THAT ITS BROKERED LIFE PRIVATE PLACEMENT IS OVERSUBSCRIBED AND FULLY ALLOCATED

Further to Orosur Mining Inc.'s news release dated Sept. 22, 2026, the company's previously announced best efforts private placement is oversubscribed and fully allocated. Pursuant to the base offering, the company intends to raise gross proceeds of up to $14-million through the sale of up to 43.75 million units of the company at a price of 32 cents (being approximately 17 pence per unit. Red Cloud Securities Inc. is acting as sole agent and bookrunner, together with United Kingdom corporate brokers Turner Pope Investments (TPI) Ltd. and Greenwood Capital Partners Ltd., in connection with the offering (as herein defined).

Orosur executive chairman Louis Castro commented:

"We are delighted at the take up of the offering and the oversubscription in difficult market conditions. We appreciate the support of existing and new investors. The proceeds will be spent almost exclusively on drilling at the company's Anza project in Colombia, including at our most recent target at El Cedro. The funds will allow us to start to show the true potential of the project."

Each unit will consist of one common share of the company and one-half of one common share purchase warrant. Each whole warrant shall entitle the holder to purchase one common share of the company at a price of 32 U.S. cents (being approximately 45 cents and approximately 24 pence) at any time during the period beginning on the date that is 61 days following the closing date (as herein defined) and ending on the date which is 24 months following the closing date.

The company has also granted the agent the option, exercisable in full or in part, up to 48 hours prior to the closing date, to sell up to an additional 6.25 million units at the offering price for up to an additional $2-million in gross proceeds.

The company intends to use the net proceeds of the offering, which should take us into late 2027, principally to advance the company's Anza exploration project in Colombia, as well as for general working capital and corporate purposes.

Subject to compliance with applicable regulatory requirements and in accordance with National Instrument 45-106 -- Prospectus Exemptions, up to 43,125,000 units may be offered and sold in Canada to purchasers resident in the provinces of Alberta, British Columbia, Manitoba, Ontario and Saskatchewan pursuant to the listed issuer financing exemption under Part 5A of NI 45-106, as amended by Coordinated Blanket Order 45-935 -- Exemptions from Certain Conditions of the Listed Issuer Financing Exemption. The underlying securities from the sale of the LIFE units will not be subject to a hold period under Canadian securities legislation. All units not sold to Canadian purchasers pursuant to the listed issuer financing exemption will be offered by way of the accredited investor and minimum amount investment exemptions under NI 45-106 in the Canadian selling jurisdictions. The underlying securities issuable from the sale of non-LIFE units will be subject to a hold period in Canada under Canadian securities legislation. The units may also be offered for sale to purchasers outside of Canada, including but not limited to purchasers resident in the United States, pursuant to an available exemption from the registration requirements of the United States Securities Act of 1933, as amended, and similar exemptions under applicable securities laws of any state of the United States (as such term is defined in Rule 902(l) of Regulation S under the U.S. Securities Act).

The offering is scheduled to close on or around Oct. 6, 2026, or such other date as the company and the agent may agree and is subject to certain conditions including, but not limited to, receipt of all necessary approvals including the approval of the TSX Venture Exchange and admission of the common shares to the Alternative Investment Market of London Stock Exchange PLC.