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NBSX: DYL - Form 603 - Notice of Initial Substantial Holder

By Namibia Stock Exchange

===================== Form 603 - Notice of Initial Substantial Holder

Deep Yellow Limited Registration No. ABN 97 006 391 948 Registered as an external company in Namibia ISIN Code: AU000000DYL4 NSX Share Code: DYL

FORM 603 - NOTICE OF INITIAL SUBSTANTIAL HOLDER

Deep Yellow Limited ABN 97 006 391 948 (ASX:DYL) (Deep Yellow or Company) released a Form 603 - Notice of initial substantial holder for immediate release.

Name Class of Securities Date of change Number of Securities

JPMorgan Chase Fully Paid Ordinary 21 October 2026 49,614,325

(FPO)

The full document can be viewed link: https://api.investi.com.au/api/announcements/dyl/fc7292dd-4f5.pdf

Yours faithfully

Greg Field Managing Director/CEO Deep Yellow Limited

26 October 2026

Registered Office Reptile Uranium Namibia (Pty) Ltd Registration no. 2004/511 48 Hidipo Hamutenya Street Swakopmund Namibia

Sponsor IJG Securities (Pty) Ltd Member of the NSX 1@Steps, 4th Floor, C/O Grove and Chasie Street, Kleine Kuppe P O Box 186, Windhoek, Namibia Registration No. 95/505 Date: 26/10/2026 09:30:00 Produced by the JSE SENS Department. The SENS service is an information dissemination service administered by the JSE Limited ('JSE').

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