OceanaGold files permit application for mine life extension at Macraes

OceanaGold Submits Permit Application and Provides Technical and Exploration Update Supporting Mine Life Extension at Macraes

Canada NewsWire

VANCOUVER, BC , Sept. 9, 2026 /CNW/ -- OceanaGold Corporation (TSX: OGC, NYSE: OGC) ("OceanaGold" or the "Company") announces that it has lodged its application for approval of the Macraes Phase 4 Project ("MP4") under New Zealand's Fast-track Approvals Act 2024. The MP4 application seeks to extend the mine life at Macraes from the current reserve life of 2032 to the late 2030s, consistent with Macraes' history of mine life extension since it commenced operation in 1990.

The Company also provides details on the technical study work and exploration results which support the potential to extend mine life at Macraes via MP4 and beyond.

Gerard Bond, President and CEO of OceanaGold, said "Submitting the MP4 application is an important step in securing the long-term future of Macraes through permitting of additional open pit cutbacks and a mine life extension to the late 2030s. Recent drilling supports both the extensions included in MP4 and identifies further opportunities to potentially enable meaningful gold production into the 2040s.

For 36 years Macraes has safely and responsibly produced gold, delivering multi-generational benefits to the surrounding communities and to New Zealand through sustaining many hundreds of jobs, socio-economic community contributions, taxes and royalties, and export earnings. Our permit application and exploration results show the potential for Macraes to continue its long history of value creation while generating strong returns for our stakeholders."

For a visual overview of the site, mine life extension opportunities and drill results, please see the accompanying 3D video:

https://vrify.com/meetings/recordings/70c5ee50-9ecc-4e81-a222-7d7449da6ec8