King River Copper Limited provided update on hydrometallurgical testwork completed by TSW Analytical Pty Ltd., a team of chemists and analysts with experience in the development and assay of high purity products. As previously reported, KRC is undertaking a Vanadium Concept Study into the production of high purity Vanadium Pentoxide (99.5-99.9% V2O5) and Titanium Dioxide (>99% TiO2) products from the Central vanadium deposit at Speewah. The major objective of the Concept Study is to identify a base framework for a new Scoping Study into the production and marketability of vanadium electrolyte products used in vanadium flow batteries (VFB). TSW Analytical has continued hydrothermal and chemical precipitation testwork to initially produce high purity Vanadium Pentoxide and Titanium Dioxide products. Hydrothermal Precipitation of Titanium Dioxide. The initial focus of product generation testwork has been the precipitation a Titanium Oxide (TiO2) product by hydrothermal methods without the addition of any reagents. The procedure outlined below details the third test which has increase the product purity from 99.1% TiO 2 to 99.5% TiO 2. 100.07g of magnetite-ilmenite concentrate was leached into 31.53% hydrochloric acid (HCl) over 4 hours at 90°C and 10% pulp density. Leach efficiencies were 98.9% V, 98.0% Fe and 97.7% Ti. The leachate was first heated under reflux followed by distillation conditions to remove HCl leaving a smaller volume of leachate from which a wet solid was filtered that assayed, when dry, 97.3% TiO2, 2.56% Fe2O3 and 0.04% V2O5. The crude TiO2 precipitate was dissolved in concentrated sulphuric acid which was subsequently diluted before refluxing to precipitate a high purity TiO2 product that assayed 99.5% TiO2. The main contaminants were silica (0.1% SiO2), with very low amounts of chrome (0.007% Cr2O3), iron (<0.0009% Fe2O3) and vanadium (<0.0002 ppm V2O5).