Basin East MRE Uploaded to SEDARplus

Bradda Head Lithium Ltd (AIM:BHL, TSX-V:BHLI), the North America-focused lithium development group, announces that, further to its press release of 1 July 2024, it has, on 14 August 2024, filed the complete Technical Report by ABH ("Report") on SEDARplus for the updated Mineral Resource Estimate ("MRE") at the Company's Basin Project ("Basin") asset in Arizona. The MRE in the Report is materially unchanged from that announced on 1 July 2024.

The Report is available to be downloaded from Bradda Head's profile on SEDARplus at www.sedarplus.ca/landingpage/. A copy of the Report is also available on the Company's website, www.braddaheadltd.com.

The Basin East MRE, reported by ABH Engineering Inc ("ABH") was updated in July 2024 (see RNS dated 1 July 2024).

Highlights:

• The total Mineral Resource comprises 20 million tonnes in the Measured category at 929ppm Li consisting of 99kt LCE, 122 million tonnes in the Indicated category at 860 ppm Li consisting of 560kt LCE and 499 million tonnes in the Inferred category at 810 ppm Li, carrying 2,150 kt LCE (1% lower than the July 1 Inferred category following adjustments in the model);
• The resource contains 20 million tonnes of 929ppm lithium for 99Ktons of LCE in the Measured category, the first ever in this category at Basin;
• As per the Company's Royalty Agreement with the Lithium Royalty Company ("LRC"), the updated MRE triggered the final royalty payment of US $3.0 million, which BHL has since requested and received from LRC;
• The results of the 2024 drilling programme demonstrate extensive lateral continuity from Basin East through to Basin North, identifying impressive consistency in the stratigraphic continuity of the Upper Clay and grade profile over a 3.0 x 2.0 km area that remains open to the north, east, and west;
• It's important to note that the Upper Clay Unit includes a continuous High-Grade layer which has an average grade of some 1,190 ppm Li, and is on average 15m thick and crops-out in Basin East potentially forming part of a phased mining processing operation that would clearly enhance early stages of mining and overall project economics;
• Five out of the eight drill holes encountered lithium mineralized "Lower Clay" which makes a significant contribution to the overall resource, particularly as the Company is able to connect the Lower Clay mineral resource from Basin East to the northern edge of Basin North, a distance of 3.0km;
• The average in-situ grade of the Inferred Basin East Mineral Resource has decreased slightly from 900 to 822 ppm Li, a 9% decrease;
• ABH applied a new cut-off grade of 550ppm Li to report the Mineral Resources and demonstrate reasonable prospects of eventual economic extraction ("RPEEE"). This is the same cut-off grade previously used by SRK Consulting (550 ppm; effective 28th September 2023);
• Following the 2024 drill program and new geologic mapping, the Company's understanding of the Basin project has increased significantly, resulting in renewed encouragement of extensive exploration opportunities for growth over the remainder of Basin North and all of Basin West where the Company continue working on permits.

Qualified Person (ABH)

The Mineral Resource statement has been authored by Mr. Damir Cukor, Qualified Person who works for ABH Engineering Inc, an independent mining consultancy. Mr. Cukor has over 28 years' experience as a professional geologist (P.G.) and 20 years as a Qualified Person (QP), undertaking and reviewing Mineral Resource Estimates and has worked on lithium clay estimates for over 5 years. Mr. Cukor consents to the inclusion of the technical information in this release and context in which it appears.

Qualified Person (BHL)