09:55 ET American Tungsten and Antimony Announces Study for Tungsten Production at Del Sol Refinery in Nevada American Tungsten & Antimony, Ltd., (ASX: AT4; OTCQX: ATALF) announced it has engaged Metso Finland Oy to complete a Scoping Study at FEL1 Concept...
Original announcement by prnewswire on
- Company
- American Tungsten and Antimony, Ltd.
- Ticker
- AT4
- Exchange
- Unavailable
- Region
- Nevada
- Primary commodity
- Tungsten
- Secondary commodities
- Antimony
- Document categories
- Metallurgy, Agreement transaction
- Extracted
- 2026-09-01 14:05:09 UTC
Analysis by Minestarters Atlas
Minestarters Atlas analysis
Summary
American Tungsten and Antimony has engaged Metso Finland Oy to conduct a FEL1 Scoping Study for a tungsten ammonium paratungstate (APT) production circuit at the Del Sol Refinery in Nevada. The proposed Phase 1 capacity is 2,500 tons per annum, with potential for expansion to 5,000 tons per annum.
Reasoning: The company is advancing a strategic tungsten production circuit by leveraging existing permitted infrastructure, which reduces capital risk and aligns with US national security mandates.
Positive factors
- Engagement of Metso Finland Oy for scoping study
- Utilization of existing permitted infrastructure (Del Sol Refinery)
- Strategic alignment with US Executive Order #14415 regarding domestic sourcing
- Potential for modular expansion from 2,500 to 5,000 tpa
Negative factors
- Study is at FEL1 Concept level (early stage)
Facts used in scoring: 3
Classification and evidence
Bench Scale Onlynegative
Only preliminary bench tests completed — no locked-cycle or pilot work.
Why it applies: The study is at the FEL1 Concept level, which is a preliminary scoping stage.
Evidence · text
“complete a Scoping Study at FEL1 Concept Study level”
Mill Routeneutral
Processing via mill or concentrator (CIL, CIP, tank leach, flotation).
Why it applies: The project involves a hydrometallurgical refinery circuit for APT production.
Evidence · text
“constructed and permitted hydrometallurgical plant”
Extracted facts
Stored fact records: 3. Some facts used in scoring do not have a stored record.
Metallurgical Results (3)
Fact 1View all detailsHide details
Identity
- Ticker
- AT4
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-09-01T00:00:00.000Z
Reasoning: Initiation of a formal scoping study for a new production circuit.
Positive factors
- Engagement of reputable engineering firm Metso Finland Oy
Fact 2View all detailsHide details
Identity
- Ticker
- AT4
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-09-01T00:00:00.000Z
Reasoning: Target production capacity for the first phase of the project.
Positive factors
- Defined initial production capacity
Fact 3View all detailsHide details
Identity
- Ticker
- AT4
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-09-01T00:00:00.000Z
Reasoning: Planned expansion capability for the production circuit.
Positive factors
- Scalability of the proposed design
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.