This partial relinquishment report provides details of the 32 sub-blocks to be relinquished from the original 80 sub-blocks, within EPM 19575 held by Mt Rosey Mining Pty Ltd. This company has been actively exploring and mining of sapphire within the southern part of the McBride Basaltic Volcanic Province and during 2018 recognized the potential for High Purity Alumina resources within weathered ash deposits. During exploration of this tenement a geological base map was constructed from Landsat8 imagery and sites of interest were field checked for potentially economic sapphire and latterly for its HPA potential. The thirty two sub blocks put forward as part of this partial surrender appear to have little potential for either sapphires or HPA and comprise an area of difficult access, dominated with basaltic volcanic centres, boulder fields and interlayered, multiple lava flows.