Aquirian Limited announced that it has successfully completed the Stage II prototype trial of its Collar Keeper® System (patent pending). The Stage II prototype unit was deployed on an existing drill rig operating in a hard rock gold mining environment in the mid-west of Western Australia. The trial successfully tested fitment to existing drill rigs and delivered marked improvements to drilling rates and drill hole quality. Drilling rates were improved by approximately two minutes per drill hole on a 5m blast bench during testing, which equates to an improvement of more than 20% over conventional drill methods. Further benefit in time savings as compared to a traditional collar piping process is expected to be realised during Stage III testing in December 2021. The prototype testing was conducted over numerous blast holes, testing system functionality and speed of deployment. Demonstrates the Collar Keeper being manually inserted through the CKS guide tube to depth (~1.8m). Demonstrates the CKS guide tube removal leaving the Collar Keeper® in place in the drill hole in preparation for the explosives loading process (prior to later removal and re-use of the Collar Keeper®).