Bench-scale metallurgical test yields 40% p2o5 concentrate at 87% recovery

SAGUENAY, QUÉBEC–(March 21, 2013) - The management of Ressources d’Arianne Inc.(“Arianne” or the “Company”) (TSX VENTURE:DAN)(FRANKFURT:JE9N)(OTCBB:DRRSF) is pleased to announce that the Interim Bench-Scale Status Report has been delivered by Jacobs Engineering of Lakeland Florida. The following is an excerpt from the report:

“During the five locked cycle tests, the cleaner 3 concentrate reached an average of 40% P2O5 for an 86.84% Recovery. The MER (minor element ratio) and CaO/P2O5 values are acceptable at less than 0.1 and 1.3, respectively.”

The complete report is available on Interested parties are encouraged to read the entire report.

This metallurgical testwork and its conclusions will be used in development of the Company’s Feasibility Study, scheduled for completion in summer 2013. With this confirmation and optimization of the flowsheet, the Company will finalize design of the processing facilities to produce phosphate rock concentrate, our finished product. The scope of this work includes a mineralogical assessment, testing of various grinding equipment and particle sizing, reagents, conditioning/flotation parameters, settling and filtration characteristics, and concentrate quality. The ore processing parameters will be further developed with a 35-ton pilot-scale test later this month. “Jacobs Engineering is considered by many to be the globally pre-eminent expert on phosphate process design and optimization, complimentary to the world-class phosphate deposit we are developing in Quebec” commented Bernard Lapointe, CEO of Arianne.

Mr. Lapointe also stated “This latest metallurgical test represents another milestone achievement, once again demonstrating the superior nature of Lac a Paul’s apatite-nelsonite ore and the high-percentage recovery of a very high-grade phosphate rock concentrate from relatively simple metallurgical processing.” “The pilot-scale testing will also serve to optimize the process design for our Feasibility Study”, he added.

Ressources d’Arianne ( owns and is developing the Lac a Paul phosphate-titanium deposit that produces a superior grade apatite concentrate grading 40% P2O5. The Company currently has 76 M shares issued.

Qualified person

Mr. Daniel Boulianne, P.Geo., Qualified Person for the Company as per NI 43-101, has approved this press release.

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