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King River Resources continues to progress PFS for Speewah Specialty Metals Project

Various aspects of the pre-feasibility study have been achieved such as calcination of the high-purity alumina precursor at 1200°C and the stage-2 purification precipitation recovery.

King River Resources Ltd - King River Resources Ltd remains on track with Speewah Prefeasibility Study work
The company holds 3,334 square kilometres of mineral leases in the Eastern Kimberley of Western Australia

King River Resources Ltd (ASX:KRR) is making progress with an updated pre-feasibility study (PFS) at its Speewah Speciality Metals (SSM) Project in the East Kimberley region of Western Australia.

KRR plans to initially scale the SSM project to produce high purity alumina (HPA), with vanadium, titanium, and iron as potential co-products at a later stage, but not included as part of the PFS.

The company has made progress with a number of aspects of the updated PFS, including optimisation work, and since May 13, the following has been carried out:

  • Calcination of the HPA precursor at 1200°C has helped reduce transfer losses and Al previously lost on final wash, and this should convert the HPA product to alpha-alumina;
  • Stage 2 purification precipitation recovery of 81.5% Al has been achieved. The target recovery for this stage of the process for the PFS was set at 80%;
  • Sources of contamination in the reagents used have been identified and from some equipment; and
  • Mining study by CSA Global is complete, in addition to the marketing and environmental reports.

The following hydrometallurgical test-work and studies are outstanding:

  • KRR must repeat the previously reported 4N HPA product (>99.99% Al2O3) result to produce a larger sample to provide for verification analyses;
  • Independent umpire assays of the final >99.99% Al2O3 result are required;
  • The company needs to confirm the HPA is 100% alpha-alumina by an X-Ray Diffraction (XRD) analysis; and
  • The plant and infrastructure design and costings are largely completed by Como Engineers waiting on final model validation and review.

King River aims to release the PFS as soon as practicable on completion of these remaining outcomes.

Quick facts: King River Resources Ltd

Price: 0.0325 AUD

ASX:KRR
Market: ASX
Market Cap: $50.49 m
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King River Resources Ltd - Elevator Pitch

Anthony Barton, non executive chairman of King River Resources Ltd (ASX:KRR), pitches the company to investors. For more information visit https://kingriverresources.com.au/

on 24/1/19

2 min read