ACS: Dry Processing Testwork Confirms Technical Viability
Original announcement by asx on
- Company
- ACCENT RESOURCES NL
- Ticker
- ACS
- Exchange
- ASX
- Region
- Western Australia
- Primary commodity
- Iron ore
- Secondary commodities
- None reported
- Document categories
- Metallurgy
- Extracted
- 2026-09-30 00:25:16 UTC
Analysis by Minestarters Atlas
Atlas analysis published:
Minestarters Atlas analysis
Summary
Accent Resources has announced positive interim bench-scale metallurgical testwork results for its Magnetite Range Project in Western Australia. Independent dry magnetic separation tests produced high-grade magnetite concentrates ranging from 66.3% to 68.0% Fe, with overall magnetic iron recoveries up to 98.21%. These results confirm the technical viability of a water-efficient dry processing flowsheet, which will be further evaluated in the project's Pre-Feasibility Study.
Reasoning: Accent Resources has reported positive bench-scale metallurgical testwork confirming the technical viability of a dry processing route for its Magnetite Range Project. The tests achieved high-grade iron concentrates (up to 70.3% Fe) with excellent recoveries, providing a water-efficient option for the ongoing PFS. While the results are preliminary and require further validation at a larger scale, they represent a significant technical milestone for the project.
Positive factors
- High concentrate grades achieved (up to 70.3% Fe) which are exceptional for iron ore, meeting or exceeding typical Blast Furnace Pellet feed specifications.
- High overall magnetic iron recovery (up to 98.2%) and total iron recovery (up to 91.2%) demonstrated across multiple samples.
- Technical viability of a dry processing flowsheet confirmed, providing a credible water-efficient option for the project's Pre-Feasibility Study (PFS).
- Testwork conducted on four representative samples from different deposits (Julia and Robb), indicating some variability assessment.
- Metallurgical results are signed off by a Competent Person (CP) under JORC 2012 standards.
Negative factors
- The testwork is preliminary in nature and conducted at bench scale, not yet representing final process design or production forecast.
- Further testwork and engineering studies are required to define an optimal flowsheet, assess commercial application, and evaluate energy use, equipment sizing, material handling, dust control, concentrate moisture, and operating costs.
- Pelletisation performance and marketing requirements for the concentrates have not yet been assessed.
- Deleterious elements (SiO2, Al2O3, S, P) are present in the concentrates, which may incur penalties or require further treatment.
Facts used in scoring: 8
Classification and evidence
High Recoverypositive
Recovery at or above the exceptional band for the commodity and processing route.
Why it applies: The testwork demonstrated overall magnetic iron recovery for the four tests reached 98.21% and total iron recovery up to 91.2%, which is strong to exceptional for iron ore.
Evidence · text
“Overall magnetic iron recovery for the four tests reached 98.21%.”
Bench Scale Onlynegative
Only preliminary bench tests completed — no locked-cycle or pilot work.
Why it applies: The testwork is described as 'bench scale outcomes' and 'preliminary in nature', indicating it is not yet at a larger, more representative scale.
Evidence · text
“These results are preliminary bench scale outcomes and are not a final process design or production forecast.”
Multi-Domain Testedpositive
Variability across ore domains (oxide, transition, fresh) has been addressed.
Why it applies: The testwork was conducted on 'four representative samples from Julia and Robb deposits', indicating testing across different ore domains.
Evidence · text
“LONGI tested four representative samples from Julia and Robb deposits”
QP/CP Signedpositive · Story-specific tag
Qualified Person (QP) or Competent Person (CP) named and signed off — a member of a recognized professional association (e.g., AusIMM, SME, AIG, P.Geo) with relevant experience.
Why it applies: The metallurgical information in the report is compiled by Mr Aaron Debono, a Competent Person and Fellow of the Australasian Institute of Mining and Metallurgy, who consents to its inclusion.
Evidence · text
“The information in this report that relates to Metallurgy is based on, and fairly reflects, information compiled by Mr Aaron Debono, a Competent Person, who is a full-time employee of NeoMet Engineering Pty Ltd and a Fellow of the Australasian Institute of Mining and Metallurgy.”
PFS-Supportingneutral · Story-specific tag
Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component.
Why it applies: The results provide 'technical support for including a dry processing route in PFS trade-off studies' for the Magnetite Range Project.
Evidence · text
“The results provide technical support for including a dry processing route in PFS trade-off studies.”
Deleterious Elements Presentnegative · Story-specific tag
Penalty elements (arsenic, antimony, etc.) or refractory concerns noted in the release.
Why it applies: The wet magnetic separation results table (Table 3) lists SiO₂, Al₂O₃, S, and P in the final concentrate, which are common penalty elements for iron ore.
Evidence · table
“SiO₂% Al₂O₃% S% P%”
Context: Table 3: Wet magnetic separation results
Mill Routeneutral
Processing via mill or concentrator (CIL, CIP, tank leach, flotation).
Why it applies: the document describes a flotation route ("concentrate")
Extracted facts
Stored fact records: 8. Some facts used in scoring do not have a stored record.
Metallurgical Results (8)
bench scaleMagnetite Range Project · iron_oreRecovery: 85.2 %Head Grade: 34.74Head Grade Unit: %View all detailsHide details
Identity
- Project
- Magnetite Range Project
- Commodity
- iron_ore
- Region
- australia_wa
- Reported Region
- Western Australia
- Ticker
- ACS
Test Work
- Program Status
- preliminary
- Test Type
- bench scale
- Processing Route
- dry magnetic separation
- Sample
- J-UBIF-01
- Grind P80
- 75 µm
Recovery
- Recovery
- 85.2 %
- Recovery Basis
- actual_test
- Head Grade
- 34.74
- Head Grade Unit
- %
- Conc. Grade
- 67.1
- Conc. Grade Unit
- %
Lab
- Laboratory
- LONGI Magnet Co., Ltd.
- Consultant
- NeoMet Engineering Pty Ltd
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-09-29T00:00:00.000Z
Reasoning: Bench-scale dry magnetic separation for sample J-UBIF-01 yielded an exceptional concentrate grade and strong recovery, supporting the viability of the dry processing route, though further work is needed.
Positive factors
- High concentrate grade of 67.1% Fe achieved, which is exceptional for iron ore.
- Strong total iron recovery of 85.2% demonstrated for this sample.
- Confirms technical viability of dry processing route for this sample.
Negative factors
- Testwork is preliminary and at bench scale, requiring further validation.
- Deleterious elements are present in the concentrate (implied from Table 3 for this sample type).
Evidence · table
“67.1”
Context: J-UBIF-01
bench scaleMagnetite Range Project · iron_oreRecovery: 91.2 %Head Grade: 36.03Head Grade Unit: %View all detailsHide details
Identity
- Project
- Magnetite Range Project
- Commodity
- iron_ore
- Region
- australia_wa
- Reported Region
- Western Australia
- Ticker
- ACS
Test Work
- Program Status
- preliminary
- Test Type
- bench scale
- Processing Route
- dry magnetic separation
- Sample
- J-LBIF-02
- Grind P80
- 75 µm
Recovery
- Recovery
- 91.2 %
- Recovery Basis
- actual_test
- Head Grade
- 36.03
- Head Grade Unit
- %
- Conc. Grade
- 66.7
- Conc. Grade Unit
- %
Lab
- Laboratory
- LONGI Magnet Co., Ltd.
- Consultant
- NeoMet Engineering Pty Ltd
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-09-29T00:00:00.000Z
Reasoning: Bench-scale dry magnetic separation for sample J-LBIF-02 yielded an exceptional concentrate grade and very strong recovery, further validating the dry processing route, though further work is needed.
Positive factors
- Exceptional concentrate grade of 66.7% Fe achieved.
- Very strong total iron recovery of 91.2% demonstrated for this sample.
- Confirms technical viability of dry processing route for this sample.
Negative factors
- Testwork is preliminary and at bench scale, requiring further validation.
- Deleterious elements are present in the concentrate (implied from Table 3 for this sample type).
Evidence · table
“66.7”
Context: J-LBIF-02
bench scaleMagnetite Range Project · iron_oreRecovery: 87.2 %Head Grade: 33.3Head Grade Unit: %View all detailsHide details
Identity
- Project
- Magnetite Range Project
- Commodity
- iron_ore
- Region
- australia_wa
- Reported Region
- Western Australia
- Ticker
- ACS
Test Work
- Program Status
- preliminary
- Test Type
- bench scale
- Processing Route
- dry magnetic separation
- Sample
- R-LBIF-12
- Grind P80
- 75 µm
Recovery
- Recovery
- 87.2 %
- Recovery Basis
- actual_test
- Head Grade
- 33.3
- Head Grade Unit
- %
- Conc. Grade
- 68
- Conc. Grade Unit
- %
Lab
- Laboratory
- LONGI Magnet Co., Ltd.
- Consultant
- NeoMet Engineering Pty Ltd
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-09-29T00:00:00.000Z
Reasoning: Bench-scale dry magnetic separation for sample R-LBIF-12 yielded an exceptional concentrate grade and strong recovery, strongly supporting the dry processing route, though further work is needed.
Positive factors
- Exceptional concentrate grade of 68.0% Fe achieved, which is very high for iron ore.
- Strong total iron recovery of 87.2% demonstrated for this sample.
- Confirms technical viability of dry processing route for this sample.
Negative factors
- Testwork is preliminary and at bench scale, requiring further validation.
- Deleterious elements are present in the concentrate (implied from Table 3 for this sample type).
Evidence · table
“68.0”
Context: R-LBIF-12
bench scaleMagnetite Range Project · iron_oreRecovery: 56.2 %Head Grade: 24.83Head Grade Unit: %View all detailsHide details
Identity
- Project
- Magnetite Range Project
- Commodity
- iron_ore
- Region
- australia_wa
- Reported Region
- Western Australia
- Ticker
- ACS
Test Work
- Program Status
- preliminary
- Test Type
- bench scale
- Processing Route
- dry magnetic separation
- Sample
- R-LBIF-14
- Grind P80
- 75 µm
Recovery
- Recovery
- 56.2 %
- Recovery Basis
- actual_test
- Head Grade
- 24.83
- Head Grade Unit
- %
- Conc. Grade
- 66.3
- Conc. Grade Unit
- %
Lab
- Laboratory
- LONGI Magnet Co., Ltd.
- Consultant
- NeoMet Engineering Pty Ltd
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-09-29T00:00:00.000Z
Reasoning: Bench-scale dry magnetic separation for the low-grade R-LBIF-14 sample produced an exceptional concentrate grade, but with a lower recovery, indicating the process can handle variable feed but with expected yield differences.
Positive factors
- Exceptional concentrate grade of 66.3% Fe achieved, even from a low-grade feed sample.
- Demonstrates that low-grade material can also be processed via a dry circuit to produce high grade concentrates.
Negative factors
- Lower total iron recovery of 56.2% compared to other samples, reflecting its low-grade nature.
- Testwork is preliminary and at bench scale, requiring further validation.
- Deleterious elements are present in the concentrate (implied from Table 3 for this sample type).
Evidence · table
“66.3”
Context: R-LBIF-14*
bench scaleMagnetite Range Project · iron_oreRecovery: 81.93 %Head Grade: 34.74Head Grade Unit: %View all detailsHide details
Identity
- Project
- Magnetite Range Project
- Commodity
- iron_ore
- Region
- australia_wa
- Reported Region
- Western Australia
- Ticker
- ACS
Test Work
- Program Status
- preliminary
- Test Type
- bench scale
- Processing Route
- wet magnetic separation cleaning
- Sample
- J-UBIF-01 (from dry concentrate)
Recovery
- Recovery
- 81.93 %
- Recovery Basis
- actual_test
- Head Grade
- 34.74
- Head Grade Unit
- %
- Conc. Grade
- 70.08
- Conc. Grade Unit
- %
Lab
- Laboratory
- LONGI Magnet Co., Ltd.
- Consultant
- NeoMet Engineering Pty Ltd
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-09-29T00:00:00.000Z
Reasoning: Wet magnetic cleaning of J-UBIF-01 dry concentrate produced an exceptional grade suitable for DRI feed with strong overall recovery, highlighting a potential product quality upgrade option.
Positive factors
- Achieved a very high concentrate grade of 70.08% Fe, suitable for Direct Reduced Iron feed.
- Strong total iron recovery of 81.93% (vs ROM) maintained after wet cleaning.
- Demonstrates potential for a product quality opportunity with a final wet polishing stage.
Negative factors
- Testwork is preliminary and at bench scale, requiring further validation.
- Deleterious elements (SiO2, Al2O3, S, P) are present in the concentrate, which may incur penalties.
Evidence · table
“70.08”
Context: J-UBIF-01
bench scaleMagnetite Range Project · iron_oreRecovery: 88.69 %Head Grade: 36.03Head Grade Unit: %View all detailsHide details
Identity
- Project
- Magnetite Range Project
- Commodity
- iron_ore
- Region
- australia_wa
- Reported Region
- Western Australia
- Ticker
- ACS
Test Work
- Program Status
- preliminary
- Test Type
- bench scale
- Processing Route
- wet magnetic separation cleaning
- Sample
- J-LBIF-02 (from dry concentrate)
Recovery
- Recovery
- 88.69 %
- Recovery Basis
- actual_test
- Head Grade
- 36.03
- Head Grade Unit
- %
- Conc. Grade
- 69.67
- Conc. Grade Unit
- %
Lab
- Laboratory
- LONGI Magnet Co., Ltd.
- Consultant
- NeoMet Engineering Pty Ltd
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-09-29T00:00:00.000Z
Reasoning: Wet magnetic cleaning of J-LBIF-02 dry concentrate produced an exceptional grade suitable for DRI feed with very strong overall recovery, highlighting a potential product quality upgrade option.
Positive factors
- Achieved a very high concentrate grade of 69.67% Fe, suitable for Direct Reduced Iron feed.
- Very strong total iron recovery of 88.69% (vs ROM) maintained after wet cleaning.
- Demonstrates potential for a product quality opportunity with a final wet polishing stage.
Negative factors
- Testwork is preliminary and at bench scale, requiring further validation.
- Deleterious elements (SiO2, Al2O3, S, P) are present in the concentrate, which may incur penalties.
Evidence · table
“69.67”
Context: J-LBIF-02
bench scaleMagnetite Range Project · iron_oreRecovery: 85.39 %Head Grade: 33.3Head Grade Unit: %View all detailsHide details
Identity
- Project
- Magnetite Range Project
- Commodity
- iron_ore
- Region
- australia_wa
- Reported Region
- Western Australia
- Ticker
- ACS
Test Work
- Program Status
- preliminary
- Test Type
- bench scale
- Processing Route
- wet magnetic separation cleaning
- Sample
- R-LBIF-12 (from dry concentrate)
Recovery
- Recovery
- 85.39 %
- Recovery Basis
- actual_test
- Head Grade
- 33.3
- Head Grade Unit
- %
- Conc. Grade
- 70.3
- Conc. Grade Unit
- %
Lab
- Laboratory
- LONGI Magnet Co., Ltd.
- Consultant
- NeoMet Engineering Pty Ltd
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-09-29T00:00:00.000Z
Reasoning: Wet magnetic cleaning of R-LBIF-12 dry concentrate produced an exceptional grade suitable for DRI feed with strong overall recovery, highlighting a potential product quality upgrade option.
Positive factors
- Achieved the highest concentrate grade of 70.3% Fe, suitable for Direct Reduced Iron feed.
- Strong total iron recovery of 85.39% (vs ROM) maintained after wet cleaning.
- Demonstrates potential for a product quality opportunity with a final wet polishing stage.
Negative factors
- Testwork is preliminary and at bench scale, requiring further validation.
- Deleterious elements (SiO2, Al2O3, S, P) are present in the concentrate, which may incur penalties.
Evidence · table
“70.3”
Context: R-LBIF-12
bench scaleMagnetite Range Project · iron_oreRecovery: 59.18 %Head Grade: 24.83Head Grade Unit: %View all detailsHide details
Identity
- Project
- Magnetite Range Project
- Commodity
- iron_ore
- Region
- australia_wa
- Reported Region
- Western Australia
- Ticker
- ACS
Test Work
- Program Status
- preliminary
- Test Type
- bench scale
- Processing Route
- wet magnetic separation cleaning
- Sample
- R-LBIF-14 (from dry concentrate)
Recovery
- Recovery
- 59.18 %
- Recovery Basis
- actual_test
- Head Grade
- 24.83
- Head Grade Unit
- %
- Conc. Grade
- 69.97
- Conc. Grade Unit
- %
Lab
- Laboratory
- LONGI Magnet Co., Ltd.
- Consultant
- NeoMet Engineering Pty Ltd
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-09-29T00:00:00.000Z
Reasoning: Wet magnetic cleaning of the low-grade R-LBIF-14 dry concentrate produced an exceptional grade suitable for DRI feed, but with a lower overall recovery, indicating the process can handle variable feed with expected yield differences.
Positive factors
- Achieved a very high concentrate grade of 69.97% Fe, suitable for Direct Reduced Iron feed, even from a low-grade feed sample.
- Demonstrates potential for a product quality opportunity with a final wet polishing stage for low-grade material.
Negative factors
- Lower total iron recovery of 59.18% (vs ROM) after wet cleaning, consistent with its low-grade nature.
- Testwork is preliminary and at bench scale, requiring further validation.
- Deleterious elements (SiO2, Al2O3, S, P) are present in the concentrate, which may incur penalties.
Evidence · table
“69.97”
Context: R-LBIF-14
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.