ARIANNE PHOSPHATE PROVIDES CLARIFICATION TO PRIOR NEWS RELEASE

In This Article:

DAN: TSX-V (Canada)
JE9N: FSE (Germany)
DRRSF: OTCQX (USA)

SAGUENAY, QC, Nov. 8, 2024 /CNW/ - Arianne Phosphate (the "Company" or "Arianne") (TSXV: 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, issued a press release on June 27, 2024 ("Press Release"), announcing positive results from its purified phosphoric acid prefeasibility study (the "PFS") relating to the construction of a purified phosphoric acid ("PPA") plant in the Saguenay region of Quebec (the "PPA complex") to transform igneous-based phosphate concentrate into a battery-grade phosphoric acid for use in the lithium-iron-phosphate battery.  Arianne would like to clarify certain information disclosed in the Press Release regarding the study.

As the study relates to a processing facility, readers are cautioned that the term "prefeasibility study" used by the Company in the Press Release to refer to this study is not the same as that associated with mineral projects as defined under Regulation 43-101 respecting Standards of Disclosure for Mineral Projects ("Regulation 43-101"), and this study should therefore not be viewed as equating to a "prefeasibility study" as defined under Regulation 43-101 because the project is not a mineral project but rather an industrial project, and therefore is not governed by Regulation 43-101.

Commensurate with a prefeasibility study, a number of general and untailored assumptions were used to assess the economic potential of a PPA complex.

The PFS is based on a maximum yearly production capacity of 350,000 tonnes of PPA (100% P2O5) and 220,000 tonnes of a secondary phosphoric acid from 1.5 MT of phosphate rock concentrate that can be purchased on the market on long term contract basis and could eventually include concentrate from Arianne's Lac à Paul project.

The Capex amount of US$1.65 billion and the Operating costs in the PFS were determined using a class 5 estimate as defined per the American Association of Cost Engineers (AACE) International Practice 18R-97 (Cost estimate classification system – As applied in Engineering, Procurement, and Construction in the Process industries).  The estimate has an accuracy of +/- 40% based on costs of Q2 2024.  CAD values were converted to USD at 1.35.

The annual and unit process operating costs in the PFS for the PPA complex were determined for a maximum production of 350,000 tonnes annually of battery grade PPA and 220,000 tonnes of a secondary phosphoric acid.  The estimated operating costs for the PPA plant and the sulfuric acid plant include labour, electricity cost, potable and industrial water costs, maintenance material, mobile equipment costs, phosphate rock concentrate and sulfur.