Excellon Produces First Concentrate at Mallay
Original announcement by tmx on
- Company
- Excellon Resources Inc.
- Ticker
- EXN
- Exchange
- TSX
- Region
- central Peru
- Primary commodity
- Silver
- Secondary commodities
- Lead, Zinc
- Document categories
- Production, Metallurgy
- Extracted
- 2026-08-23 10:25:50 UTC
Analysis by Minestarters Atlas
Minestarters Atlas analysis
Summary
Excellon Resources has achieved its first concentrate production at the Mallay Silver-Lead-Zinc Mine in Peru during its pre-commissioning phase. The company has processed approximately 12,000 tonnes of material, producing concentrates containing silver, lead, and zinc, while advancing dewatering and rehabilitation of the 400 Ramp.
Reasoning: The achievement of first concentrate production is a major operational milestone for the Mallay restart, though the company explicitly notes the lack of formal economic studies.
Positive factors
- First concentrate production achieved
- Consistent mill operation during pre-commissioning
- Successful dewatering of 400 Ramp
- Transition to more productive mining methods planned
Negative factors
- No formal economic studies (PEA/PFS/DFS) completed for restart
- Production quantities are unaudited and subject to adjustment
Facts used in scoring: 3

Classification and evidence
QA/QC Disclosedpositive · Story-specific tag
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Why it applies: The release is reviewed and approved by a Qualified Person (Paul Keller, P.Eng.)
Evidence · text
“Qualified Person Paul Keller, P.Eng., Excellon's Chief Operating Officer and a "Qualified Person" as defined by National Instrument 43-101”
Mill Routeneutral
Processing via mill or concentrator (CIL, CIP, tank leach, flotation).
Why it applies: The concentrator is described as a conventional flotation plant.
Evidence · text
“The Mallay concentrator is a conventional flotation plant”
Extracted facts
Stored fact records: 0. Some facts used in scoring do not have a stored record.
No stored fact records are available for this extraction.
How Atlas produces this analysis
Minestarters Atlas uses automated extraction to summarize mining announcements, identify reported measurements, and classify supporting evidence. Sentiment reflects the extracted narrative and classification rules; it is an interpretation, not a reported measurement. Evidence quotes and context are provided where available. Missing data, low-confidence results, and review flags indicate limitations. Check the original publisher announcement before relying on an interpretation.