SAGUENAY, QUEBEC – (March 26, 2026) – Arianne Phosphate (the “Company” or “Arianne”) (TSX VENTURE: DAN; OTCQB: DRRSF; FRANKFURT: JE9N), a development-stage phosphate mining company, advancing the Lac à Paul project in Quebec’s Saguenay-Lac-Saint-Jean region, today announced that it will participate in a webcast presentation at the Lytham Partners 2026 Industrials & Basic Materials Investor Summit, taking place virtually on Wednesday, April 1, 2026. “I look forward to updating the investment community on the Company’s progress,” said Brian Ostroff, Head of Strategic & Business Initiatives.  “Over the last several months Arianne has released a lot of significant news as we work with potential partners to further the development of our world-class project.  The Lac à Paul project is the world’s largest greenfield deposit, capable of producing a very high-purity phosphate concentrate, ideal for use in specialty applications such as the LFP battery.  Situated in geopolitically safe and mining-friendly, Quebec, Canada, Lac à Paul is the only filly-permitted Western based greenfield project.”  The webcast will take place at 2:00 p.m. ET on Wednesday, April 1, 2026. The webcast can be accessed by visiting the conference home page at https://lythampartners.com/ibmsummit26/ or directly at https://lythampartners.com/ibmsummit26/drrsf/. A replay will also be available through the