Tamar Minerals Plc – Specimen Hill Drilling Update

3 February 2026

Tamar Minerals plc

(«Tamar» or the «Company»)

Specimen Hill Drilling Update

Tamar Minerals plc (AQSE: TMR), the exploration company primarily focused on tin
and copper in the South West of England, is pleased to announce an update on the
drilling program from the Specimen Hill Project to ASX listed White Energy
Company Limited (ASX: WEC, OTC: WECFF) («White Energy»).

On 30 January 2026, White Energy provided an update on the Specimen Hill
drilling program which.  The drilling is targeting a series of induced
polarisation («IP»), magnetic and anomalous geochemical signatures as well as
verifying the results of previous drill programs.  The area is highly
prospective for copper and gold deposits with widespread outcrop of copper
hosting minerals.  The program is expected to substantially increase the
geological knowledge of the area and the types of mineralisation present,
providing guidance for future exploration programs.  Four holes have been
completed with core logging and assays pending, with a further seven to nine
holes expected to be drilled.  The full text of the announcement in the link
below:

https://wcsecure.weblink.com.au/pdf/WEC/03050867.pdf

As mentioned in the previous Specimen Hill update announcement on the 31 March
2025, Tamar Minerals retains a 3% Net Smelter Royalty (NSR) on all future
mineral sales from the project area.

Mark Thompson, CEO of Tamar Minerals commented:

«We’re encouraged by the progress White Energy is making at Specimen Hill and
the early indications of a compelling mineral system, with Tamar Minerals
standing to benefit directly through our 3% net smelter royalty, underpinning
long-term value for our shareholders as the project advances».

For further information, please contact:

Tamar Minerals
plc
            020 3005 5000

Mark Thompson (Chief Executive)

VSA Capital
Limited
                020 3005 5000

Aquis Corporate Adviser and Broker

Andrew Raca/Dylan Sadie (Corporate Finance)

Andrew Monk (Corporate Broking)

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