Proceeding With The Development Of Nyanzaga Gold Project

PERTH, AUSTRALIA - Perseus Mining Limited reported that a Final Investment Decision (FID) has been taken to develop the Nyanzaga Gold Project (NGP) in Tanzania, following an update of the NGP Feasibility Study (FS).

Perseus has committed to invest approximately US$523 million (including contingency) to develop and prepare for the operation of the mine that is expected to produce first gold in Q1 2027. The NGP development will be solely financed via interest free, intercompany loans provided by Perseus from its existing cash and bullion balance of US$801 million as of 31 March 2025.

In anticipation of an affirmative FID, Perseus has spent approximately US$27.5 million to date to build project team capacity and commence early works that include site establishment, installation of temporary construction accommodation, and bulk earthworks as well as implementing the Relocation Action Plan (RAP) to construct new dwellings for people impacted by future construction and operating activities.

The updated FS incorporates findings and recommendations from a range of comprehensive technical assessments made by Perseus’s technical team. Notably, Perseus has opted for a large scale, wholly open-pit mining operation, for the first phase of development, in preference to a smaller scale, combined open pit - underground option contemplated by the previous owners.

The FID to proceed with developing the NGP builds upon Perseus’s demonstrated capacity to successfully develop and efficiently operate modern gold mines on the African continent. Perseus has previously successfully developed, and is now operating three gold mines including Edikan, Sissingué, and most recently, the Yaouré gold mine that was delivered ahead of schedule and under budget in 2020, using many of the same team that will be deployed on the NGP development. The FID also comes following constructive engagement with the Government of Tanzania to clarify terms of an existing Framework Agreement that sets out the basis on which the NGP will be developed and operated, as well as the Shareholder’s Agreement between the Tanzanian Government and Perseus.

A second phase of resource definition drilling is currently underway at the NGP with the aim of converting Inferred Mineral Resources into Indicated Mineral Resources, which would potentially enable the Ore Reserve to be materially expanded and the life of the NGP operation extended during the second phase of the Project, beyond the currently projected 11-year mine life.