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DIATREME Resources ASX ANNOUNCEMENT QUARTERLY ACTIVITIES REPORT FOR THE PERIOD ENDED 31 March 2021 30 April 2021 Quarterly Highlights Galalar Silica Project , Qld • Galalar silica resource expands 30 % to 61.9Mt in major boost for emerging premium quality silica mine in North Queensland • • New COO appointed to accelerate project , as Canberra stakeholder meetings highlight strong community support Post - quarter : Positive initial testwork results received for Galalar's definitive feasibility study , with results highlighting ability to produce premium product for fast - growing solar PV and other high - end glass markets Cyclone Zircon Project , WA Talks continuing to formalise potential project participants ' interests amid solid demand and constrained supply outlook for zircon and titanium . Corporate • Change of share registry to Automic , providing secure and highly accessible online investor portal Post - quarter : Notice of Annual General Meeting ( AGM ) issued for AGM to be held on 27 May 2021 at Diatreme's head office in Brisbane , Qld . AUSTRALIAN SANDS . UNIVERSAL DEMAND . DIATREME RESOURCES LIMITED | ABN 33 061 267 061 | ASX : DRX +61 7 3397 2222 Unit 8 , 55-61 Holdsworth St Coorparoo , Qld , 4151 diatreme.com.au