Deep Yellow Limited (DYLLF) June 2025 Quarterly Activities Report

Deep Yellow Limited (ASX:DYL) (FRA:JMI) (OTCMKTS:DYLLF) is pleased to provide a summary of key activities completed in the June 2025 quarter.

Tumas Project

- Subsequent to quarter end, Deep Yellow announced a detailed development update for Tumas, which demonstrated positive progress

- Detailed engineering, procurement and operational planning continues to advance

o Procurement of key packages representing 92% of direct capital well-advanced

o Vendor data for long lead items and critical associated packages have been ordered

- Contracts for power and water utility services and associated infrastructure are at an advanced stage

- Early works preparing site for commencement of major onsite works is largely completed

- Operational readiness plan underway to prepare for pre-production mining, process plant commissioning and operational ramp-up to full production

- Project financing continues to be advanced

Mulga Rock Project

- 3-month resin mini-pilot study successfully completed, with very encouraging results

- Effective separation of the uranium and critical minerals as marketable streams confirmed

- Results allow the Company to now pursue establishing the viability of a more expansive Mulga Rock Project, with the DFS revision now underway

Corporate

- Strong financial position with a group cash balance of A$217.4M

*To view the full Quarterly Report, please visit:
https://abnnewswire.net/lnk/C04966WD

John Borshoff
Managing Director/CEO
T: +61-8-9286-6999
E: john.borshoff@deepyellow.com.au
W: www.deepyellow.com.au

Media:
Cameron Gilenko
T: +61-466-984-953
e: cgilenko@citadelmagnus.com

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