Saturday, September 26, 2026
MiningNewsTerminal
Saturday, September 26, 2026 Admin

PRU.TO ·

First Stoping Operations at CMA Underground in Côte d’Ivoire

Corporate Updates

28 APRIL 2026

NEWS RELEASE

1

First Stoping Operations at CMA Underground in Côte d’Ivoire

OVERVIEW

Perth, Western Australia/April 28, 2026/Perseus Mining Limited (ASX/TSX: PRU) is pleased to announce it

has successfully completed the first underground production blast at its CMA Underground project. The

blast was fired from Blika 1120 Ore Drive South at the Yaouré Gold Mine in Côte d’Ivoire, with excavation

of the first production ore commenced immediately. This event is a key milestone for the project and

signals the continuation of the project’s ramp up toward steady-state production, scheduled for Q3 FY27.

The CMA Underground mine is both the first mechanised underground mine in Côte d’Ivoire and the first

for Perseus. With investment in the CMA Underground project, Perseus continues to be a key partner in

assisting to build skills in the Ivorian mining sector. The start of underground ore production represents a

significant milestone of the development of broader mining capability in the country.

Perseus’s Managing Director and CEO Craig Jones said:

“The first production blast is a defining moment for Perseus and Côte d’Ivoire, representing the culmination

of many months of intensive underground development , drilling and infrastructure installation . This is a

testament to the hard work and dedication of our site team and contractors, and we look forward to scaling

up operations over the coming months with the higher-grade underground ore providing mill feed.”.

NEWS RELEASE | First Stoping Operations at CMA Underground in Côte

d’Ivoire

2

COMPETENT PERSON STATEMENT:

All production targets referred to in this release are underpinned by estimated Ore Reserves which have been prepared by competent

persons in accordance with the requirements of the JORC Code.

The information in this report that relates to the Mineral Resources and Ore Reserve for the Edikan and Sissingué Gold Mines was

updated by the Company in a market announcement “Perseus Mining updates Mineral Resources and Ore Reserves” released on 21

August 2025. The information in this report that relates to the Mineral Resources and Ore Reserve for the Nyanzaga Gold Project was

updated in a market announcement “Perseus Mining Increases Nyanzaga Gold Project Ore Reserves to 4.0 Moz” released on 20

February 2026.The Company confirms that all material assumptions underpinning those estimates and the production targets, or the

forecast financial information derived therefrom, in that market release continue to apply and have not materially changed.

The Company confirms that the material assumptions underpinning the estimates of Ore Reserves described in “Technical Report —

Edikan Gold Mine, Ghana” dated 6 April 2022, “Technical Report — Yaouré Gold Project, Côte d’Ivoire” dated 18 December 2023,

“Technical Report — Sissingué Gold Project, Côte d’Ivoire” dated 29 May 2015, and “Technical Report — Nyanzaga Gold Project,

Tanzania” dated 10 June 2025 continue to apply.

CAUTION REGARDING FORWARD LOOKING INFORMATION:

This report contains forward-looking information which is based on the assumptions, estimates, analysis and opinions of

management made in light of its experience and its perception of trends, current conditions and expected developments, as well as

other factors that management of the Company believes to be relevant and reasonable in the circumstances at the date that such

statements are made, but which may prove to be incorrect. Assumptions have been made by the Company regarding, among other

things: the price of gold, continuing commercial production at the Yaouré Gold Mine, the Edikan Gold Mine and the Sissingué Gold

Mine without any major disruption, development of a mine at Nyanzaga, the receipt of required governmental approvals, the

accuracy of capital and operating cost estimates, the ability of the Company to operate in a safe, efficient and effective manner and

the ability of the Company to obtain financing as and when required and on reasonable terms. Readers are cautioned that the

foregoing list is not exhaustive of all factors and assumptions which may have been used by the Company. Although management

believes that the assumptions made by the Company and the expectations represented by such information are reasonable, there

can be no assurance that the forward-looking information will prove to be accurate. Forward-looking information involves known

and unknown risks, uncertainties, and other factors which may cause the actual results, performance or achievements of the

Company to be materially different from any anticipated future results, performance or achievements expressed or implied by such

forward-looking information. Such factors include, among others, the actual market price of gold, the actual results of current

exploration, the actual results of future exploration, changes in project parameters as plans continue to be evaluated, as well as

those factors disclosed in the Company's publicly filed documents. Readers should not place undue reliance on forward-looking

information. Perseus does not undertake to update any forward-looking information, except in accordance with applicable securities

laws.

NEWS RELEASE | First Stoping Operations at CMA Underground in Côte

d’Ivoire

3

ASX/TSX CODE: PRU

CAPITAL STRUCTURE:

Ordinary shares: 1,346,377,056

Performance rights: 8,625,981

REGISTERED OFFICE:

Level 2

437 Roberts Road

Subiaco WA 6008

Telephone: +61 8 6144 1700

www.perseusmining.com

DIRECTORS:

Rick Menell

Non-Executive Chairman

Craig Jones

Managing Director & CEO

Amber Banfield

Non-Executive Director

Elissa Cornelius

Non-Executive Director

Dan Lougher

Non-Executive Director

John McGloin

Non-Executive Director

James Rutherford

Non-Executive Director

CONTACTS:

Craig Jones

Managing Director & CEO

[email protected]

Stephen Forman

Investor Relations

+61 484 036 681

[email protected]

Nathan Ryan

Media Relations

+61 420 582 887

[email protected]

4