Replacement - Amitsoq Update
Original announcement by lse on
- Company
- GreenRoc Strategic Materials Plc
- Ticker
- GROC
- Exchange
- LSE
- Region
- Greenland
- Primary commodity
- Graphite
- Secondary commodities
- None reported
- Document categories
- Metallurgy, Other
- Extracted
- 2026-09-29 14:53:10 UTC
Analysis by Minestarters Atlas
Atlas analysis published:
Minestarters Atlas analysis
Summary
GreenRoc corrected its graphite concentrate grade to 95.2% following locked-cycle testing by SGS Lakefield, which also showed >90% recovery. The company has selected GTK Mintec to process a 20-tonne bulk sample and has completed an underground survey of the Amitsoq mine to support a future Pre-Feasibility Study.
Reasoning: The announcement provides corrected, high-quality metallurgical results (95.2% grade, >90% recovery) and advances the project toward bulk testing and PFS via underground survey.
Positive factors
- High graphite concentrate grade (95.2%)
- Strong recovery (>90%)
- Selection of GTK Mintec for bulk testing
- Successful underground survey
Negative factors
- Correction to previously reported percentage (92.3% to 95.2%)
- Drilling delay due to helicopter availability
Facts used in scoring: 1
Classification and evidence
High Recoverypositive
Recovery at or above the exceptional band for the commodity and processing route.
Why it applies: Graphite recovery of more than 90% is reported.
Evidence · text
“overall recovery of more than 90%”
Mill Routeneutral
Processing via mill or concentrator (CIL, CIP, tank leach, flotation).
Why it applies: The test work involved crushing, grinding, and flotation.
Evidence · text
“series of grinding and flotation tests began in April 2026”
Single Domain Onlynegative
Testing limited to one composite or domain — representativeness not established.
Why it applies: only one composite was tested
Extracted facts
Stored fact records: 1. Some facts used in scoring do not have a stored record.
Metallurgical Results (1)
locked-cycleAmitsoq · graphiteRecovery: 90 %Head Grade: 22.3Head Grade Unit: wt.%View all detailsHide details
Identity
- Project
- Amitsoq
- Commodity
- graphite
- Region
- greenland
- Reported Region
- Greenland
- Ticker
- GROC
Test Work
- Program Status
- detailed
- Test Type
- locked-cycle
- Processing Route
- flotation
- Sample
- 300 kg subsample from 20-tonne bulk sample
Recovery
- Recovery
- 90 %
- Recovery Basis
- actual_test
- Head Grade
- 22.3
- Head Grade Unit
- wt.%
- Conc. Grade
- 95.2
- Conc. Grade Unit
- wt.%
Reagents
- Reagent Notes
- The test work included crushing to a particle size of less than 3.35 mm and a series of grinding and flotation tests.
Lab
- Laboratory
- SGS Lakefield
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-09-29T00:00:00.000Z
Reasoning: 95.2% grade and >90% recovery are strong results for graphite flotation.
Positive factors
- High concentrate grade
- Strong recovery
Evidence · text
“locked-cycle test yielded a concentrate grading 95.2% graphite, with an overall recovery of more than 90%”
Tags used in scoring
Mill Routeneutral
Processing via mill or concentrator (CIL, CIP, tank leach, flotation).
Why it applies: processing_route matches the flotation signal
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.