SAGUENAY, QUEBEC – (June 25 , 2025) – Arianne Phosphate (the “Company” or “Arianne”) (TSX VENTURE: DAN; OTCQX: DRRSF; FRANKFURT: JE9N), a development-stage phosphate mining company, advancing the Lac à Paul project in Quebec’s Saguenay-Lac-Saint-Jean region, is pleased to announce that Minister Blanchette Vezina, Minister of Natural Resources and Forests, recently announced the awarding of several grants totalling over $750,000 for R&D projects in the circular economy of critical and strategic minerals. As part of these grants, Arianne, with two other companies, received funding to participate in a project aimed at strengthening the supply chain for local integration of the Lithium-Iron-Phosphate (“LFP”) sector in Quebec. For Arianne, the objective is to reduce the environmental impact and production costs associated with the optimization of inputs and processes association with lithium-iron-phosphate production using purified phosphoric acid. In 2024, both the Quebec and Canadian governments added the phosphate-bearing mineral apatite to their respective critical mineral lists. As well, in June of 2024, Arianne published a prefeasibility study on a downstream facility to produce purified phosphoric acid (“PPA”) from high-purity phosphate concentrate. PPA is a necessary ingredient for use in both the food industry and advanced battery technologies. Considerable interest has been shown in