Diatreme Resources (DRX) investor relations material

Project Overview and Market Positioning

• Developing high-purity, low-iron silica projects in Far North Queensland, targeting solar PV, specialty glass, semiconductors, and advanced manufacturing markets.

• Northern Silica Project is the initial focus, with a total mineral resource of 632.8 Mt at ~99.2% SiO2 and a mine life exceeding 25 years.

• Holds a dominant position in a broad dune system, controlling over 90% of the province.

• Product meets stringent requirements for solar glass, with less than 100 ppm iron.

• Portfolio designated as an Australian critical mineral, benefiting from government support and streamlined regulatory pathways.

Project Development, Operations, and Environmental Management

• Stage 1 production targets 3 Mtpa at start-up, scalable to 5 Mtpa, with average annual revenue projected at A$515M at full capacity.

• Processing uses gravity, water, and magnetics, with no hazardous chemicals, enabling straightforward rehabilitation.

• Environmental permitting and EIS are well advanced, addressing environmental, social, and cultural heritage aspects.

• Proximity to Cape Flattery port provides ample export capacity, with direct conveyor-to-ship loading and shared facilities planned.

• Mining and infrastructure footprint designed to minimize environmental impact, with progressive rehabilitation and operations above the groundwater table.

Partnerships, Leadership, and Financials

• Sibelco, a global leader in industrial minerals, has invested approximately A$56M, holds a 23.1% stake, and brings technical, marketing, and Asian market access expertise.

• Strong cash position with JVCo cash reserves of approximately A$8.9M and corporate cash of AUD 2.7 million.

• Board and management team includes experienced mining executives and former government officials, with recent refresh signaling project confidence.

• Debt and equity structuring for project finance is underway, with potential government support via critical mineral incentives and export credit facilities.

• Cornerstone investors include Sibelco, Ilwella, Flannery Family Office, and Deutsche Balaton.