Endeavour Silver Reports Temporary Reduced Capacity at its Guanacevi Mine
A mechanical failure at the Guanacevi Mine cuts milling throughput for about three weeks, though mining continues and repair costs are expected to be low.
Rhea-AI Summary
Endeavour Silver (EXK) has taken the primary ball mill at its Guanacevi Mine offline after identifying a mechanical issue on September 21, 2026.
The company plans to replace the mill head and trunnion, which are already on site, and expects repairs to take about three weeks. During this period, the regrind circuit will run at a reduced throughput of 600 tonnes per day, down from the usual 1,100 tpd, while mining operations continue. The cost of replacing the components is expected to be minimal because the required parts are in existing inventory.
Positive
- Repairs expected to be completed in about three weeks
- Replacement parts already in inventory, with minimal expected cost
- Mining operations to continue uninterrupted during mill repairs
Negative
- Processing throughput reduced to 600 tpd from about 1,100 tpd during repairs
- Primary ball mill taken offline at Guanacevi Mine
Key Figures
- Mill offline
- September 21
- Primary ball mill at Guanacevi
- Repair timeline
- Approximately three weeks
- Replacement of mill head and trunnion
- Reduced throughput
- 600 tpd
- During repairs
- Ordinary throughput capacity
- Approximately 1,100 tpd
- Primary ball mill comparison
Historical Context
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Terronera operations were suspended after a community blockade.
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Terronera blockade remained in place with no material operational change.
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Terronera blockade was removed and operations were scheduled to resume.
24h Move is the share-price change in the day after each event; other market factors may also have contributed.
Key Terms
ball mill technical
trunnion technical
regrind circuit technical
throughput technical
AI-generated analysis. How Rhea-AI works. Not financial advice.
VANCOUVER, British Columbia, Sept. 22, 2026 (GLOBE NEWSWIRE) -- Endeavour Silver Corp. (“Endeavour” or the “Company”) (NYSE: EXK; TSX: EDR) has identified a mechanical issue affecting the primary ball mill at its Guanacevi Mine.
The mill has been taken offline as of September 21, while preparations are completed to replace the mill head and trunnion, both of which are available on site. The Company expects the repairs to be completed within approximately three weeks and is coordinating with third-party service providers to expedite the replacement.
During the repair period, the regrind circuit will be configured to operate at a reduced throughput of 600 tonnes per day (tpd), compared to ordinary course capacity of approximately 1,100 tpd.
Mining operations will continue uninterrupted. The cost of replacing the affected components is expected to be minimal, as the necessary parts are already in inventory on site.
About Endeavour Silver – Endeavour is a mid-tier silver producer with three operating mines in Mexico and Peru and a robust pipeline of exploration projects across Mexico, Chile, and the United States. With a proven track record of discovery, development, and responsible mining, Endeavour is driving organic growth and creating lasting value on its path to becoming a leading senior silver producer.
Contact Information
Allison Pettit
Vice President, Investor Relations
Email: apettit@edrsilver.com
Website: www.edrsilver.com
Cautionary Note Regarding Forward-Looking Statements
This news release contains “forward-looking statements” within the meaning of the United States private securities litigation reform act of 1995 and “forward-looking information” within the meaning of applicable Canadian securities legislation. Such forward-looking statements and information herein include but are not limited to statements regarding the suspension of processing at Guanacevi, timing for completion of repairs at the Guanacevi mill, the availability and assessment of alternative processing methods, the volume of throughput achievable through the secondary circuit, and the expected impact of this reduced capacity on Q3 production at Guanacevi. The Company does not intend to and does not assume any obligation to update such forward-looking statements or information, other than as required by applicable law.
Forward-looking statements or information involve known and unknown risks, uncertainties and other factors that may cause the actual results, level of activity, production levels, performance or achievements of Endeavour and its operations to be materially different from those expressed or implied by such statements. Such risk factors include but are not limited to the failure to complete repairs at the Guanacevi mill in a timely manner and at the expected nominal cost, the effectiveness of alternative processing methods, adverse changes in commodity prices, greater than anticipated adverse impact on annual production levels, anticipated costs and all in sustaining costs; as well as those factors described in the section “risk factors” contained in the Company’s most recent form 40F/Annual Information Form filed with the S.E.C. and Canadian securities regulatory authorities.
Forward-looking statements are based on assumptions management believes to be reasonable, including but not limited to: the ability to complete repairs at the Guanacevi mill in a timely manner, the availability of alternative processing methods, the continued operation of the Company’s mining operations, and such other assumptions and factors as set out herein. Although the Company has attempted to identify important factors that could cause actual results to differ materially from those contained in forward-looking statements or information, there may be other factors that cause results to be materially different from those anticipated, described, estimated, assessed or intended. There can be no assurance that any forward-looking statements or information will prove to be accurate as actual results and future events could differ materially from those anticipated in such statements or information. Accordingly, readers should not place undue reliance on forward-looking statements or information.
FAQ
AI-generated questions and answers. How Rhea-AI works. Not financial advice.
How long does Endeavour Silver expect the Guanacevi mill repairs to take?
The company expects the repairs to the primary ball mill, including replacement of the mill head and trunnion, to be completed within approximately three weeks.
What processing capacity will Guanacevi operate at during the repair period?
While the primary ball mill is offline, the regrind circuit will be configured to operate at a reduced throughput of 600 tonnes per day, compared with the ordinary capacity of about 1,100 tpd.
Will mining at Guanacevi stop while the mill is offline?
No. Endeavour Silver states that mining operations will continue uninterrupted during the mill repair period.
What cost impact does Endeavour Silver anticipate from the mill repairs?
The company expects the cost of replacing the affected mill components to be minimal, as the mill head and trunnion are already available in inventory on site.