Ms. Cathy Zhai reports

MONUMENT MINING PROVIDES UPDATE ON TUCKANARRA JOINT VENTURE

Monument Mining Ltd. has provided an update regarding the Tuckanarra gold project joint venture in Western Australia between Monument's wholly owned subsidiary, Monument Murchison Pty. Ltd., holding a 20-per-cent participating interest, and Tuckanarra Resources Pty. Ltd., a subsidiary of Odyssey Gold Ltd., holding an 80-per-cent participating interest.

Court proceedings

Tuckanarra Resources has commenced proceedings in the Supreme Court of Western Australia and applied for an interlocutory injunction to prevent Monument Murchison from holding the management committee meeting scheduled for Oct. 21, 2026. Monument Murchison called that meeting for the purpose of appointing a replacement manager following its position that Tuckanarra ceased to be manager under the exploration joint venture agreement. The application also seeks to restrain certain related steps in reliance on Monument Murchison's Aug. 25, 2026, notice of breach.

The parties have agreed to interim arrangements and an expedited timetable for resolution of the dispute. The outcome and terms of any court orders remain subject to determination.

Monument Murchison maintains that Tuckanarra ceased to be manager under clause 5.1(b)(ii) of the EJVA. Any interim arrangements in place are without any admission concerning the validity of Tuckanarra's removal as manager. Monument Murchison reserves its rights under the EJVA.

Joint venture dispute

As previously disclosed, Monument Murchison issued a notice of breach to Tuckanarra on Aug. 25, 2026, under the EJVA dated Oct. 13, 2020, concerning Tuckanarra's entry into a toll milling agreement with a third party.

Monument Murchison maintains that the material breach was not remedied within the contractual period and that Tuckanarra ceased to be manager of the joint venture, effective Sept. 25, 2026, pursuant to clause 5.1(b)(ii) of the EJVA.

Tuckanarra disputes Monument Murchison's position regarding the breach and removal.

Monument's position

Monument remains committed to the orderly advancement of the Tuckanarra gold project in accordance with the EJVA and the respective rights and obligations of the joint venture participants.

Monument supports the evaluation of commercially viable development and processing arrangements, including third party toll milling, provided that such arrangements are appropriately authorized and protect the rights of both joint venture participants.

Monument intends to continue engaging constructively in the dispute resolution process while preserving its rights under the EJVA.

The company will provide further updates as material developments occur.

About Monument Mining Ltd.

Monument Mining is an established Canadian gold producer that 100 per cent owns and operates the Selinsing gold mine in Malaysia and the Murchison gold project in the Murchison area of Western Australia. It has a 20-per-cent interest in Tuckanarra gold project, jointly owned by Odyssey Gold in the same region. The company employs approximately 297 people in both regions and is committed to the highest standards of environmental management, social responsibility, including health and safety for its employees and neighbouring communities, and good corporate governance.

We seek Safe Harbor.