Endeavour Reports Access Ramp Subsidence at the Mana Mine
All three active underground portals at Mana are suspended, while Endeavour maintains its FY-2026 Group production and cost outlook.
Sentiment and the balance of points
Rhea-AI Sentiment reads the wording of the document, how positive or negative its language is on a 1 to 5 scale. The balance of points shown with the takes weighs what the document actually discloses, so the two can disagree, for example when a trial that missed its main goal is described in upbeat language.
Rhea-AI Summary
Endeavour Mining (EDVMF) suspended underground mining at Mana after an access ramp partially subsided on 28 October, restricting access to two portals.
No one was harmed, and all underground workers were evacuated. Activities at all three active underground portals are suspended while geotechnical analysis and ramp remediation work are assessed. Endeavour says it remains on track for FY-2026 Group production and all-in sustaining cost guidance. It is evaluating mitigation options, including restarting and accelerating mining at the accessible Wona portal and other near-mine open pits. An analysis update and remediation plan details are due with Q3-2026 results on 12 November 2026.
How this balance works
Rhea-AI gives every point it takes from this document a weight. Minor counts 1, Moderate 3 and Major 9, so one Major point outweighs several Minor ones. The bar adds up the weights on each side, and when neither side holds more than 65% of the total the balance reads Mixed.
It reads the document as published, with the same rules for every company, and it does not look at what the market expected or at how the stock traded, so a point can be objectively good on a day the stock falls.
Rhea-AI Sentiment measures something else, the tone of the wording.
Hollow bars mark forward-looking points. How the balance works
Positive
- Moderate point. Forward-looking: it has not happened yet and may not happen.FY-2026 Group production and all-in sustaining cost guidance remains on track, Endeavour says.
- Minor pointNo one was harmed in the incident; all underground workers were evacuated.
- Minor point. Forward-looking: it has not happened yet and may not happen.Mitigation options under evaluation include restarting and accelerating mining at Wona and other near-mine open pits.
Negative
- Moderate pointAll three active underground portals have suspended mining pending geotechnical analysis and assessment of ramp remediation work.
- Minor pointPartial ramp subsidence on 28 October restricted access to Mana’s Dangouna and Aviera underground portals.
AI-generated analysis. How Rhea-AI works. Not financial advice.
ENDEAVOUR REPORTS ACCESS RAMP SUBSIDENCE AT THE MANA MINE
London, 2 November 2026 – Endeavour Mining plc (LSE:EDV, TSX:EDV, OTCQX:EDVMF) (“Endeavour” or the “Company”) reports that on 28 October the access ramp leading to the depleted Wona open pit partially subsided, restricting access to the Dangouna and Aviera underground portals at the Mana mine in Burkina Faso.
No one was harmed during the incident, and emergency protocols were initiated immediately, which included the evacuation of all underground workers and the notification of the local authorities in Burkina Faso.
Underground mining activities at all three active underground portals at Mana have been suspended to allow for detailed geotechnical analysis and ramp remediation work to be assessed.
Endeavour remains on track to achieve its FY-2026 Group production and AISC guidance. Furthermore, the company is actively evaluating options to mitigate the impact of the incident on Mana’s production, including the restart and acceleration of mining activities in the Wona portal, which remains accessible, and other near-mine open pits.
An update on the ongoing geotechnical analysis and details on the remediation plan will be provided within Q3-2026 financial results, on 12 November 2026.
CONTACT INFORMATION
| For Investor Relations Enquiries: | For Media Enquiries: |
| Jack Garman | Brunswick Group LLP in London |
| Vice President of Investor Relations | Carole Cable, Partner |
| +44 203 011 2723 | + 44 207 404 5959 |
| investor@endeavourmining.com | ccable@brunswickgroup.com |
ABOUT ENDEAVOUR MINING PLC
Endeavour Mining is one of the world’s senior gold producers and the largest in West Africa, with operating assets across Senegal, Cote d’Ivoire and Burkina Faso and a strong portfolio of advanced development projects and exploration assets.
A member of the World Gold Council, Endeavour is committed to the principles of responsible mining and delivering sustainable value to its employees, stakeholders and the communities where it operates. Endeavour is admitted to listing and to trading on the London Stock Exchange and the Toronto Stock Exchange, under the symbol EDV.
For more information, please visit www.endeavourmining.com.
Attachment
FAQ
AI-generated questions and answers. How Rhea-AI works. Not financial advice.
What happened at Endeavour Mining’s Mana mine on 28 October 2026?
The access ramp leading to the depleted Wona open pit partially subsided, restricting access to the Dangouna and Aviera underground portals. No one was harmed, all underground workers were evacuated, and underground mining was suspended at all three active portals.
Has the Mana mine incident changed Endeavour Mining’s 2026 guidance?
Endeavour says it remains on track to achieve its FY-2026 Group production and all-in sustaining cost guidance. The company is evaluating options to mitigate the impact on Mana’s production, including restarting and accelerating mining at the accessible Wona portal and other near-mine open pits.