REG-Diamond Update

Vast ResourcesAnnouncement

Tue 07:00

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Vast Resources plc / Ticker: VAST / Index: AIM / Sector: Mining

21 October 2025

Vast Resources plc
(“Vast” or the “Company”)

Diamond Update

Vast Resources plc, the AIM quoted mining company, is pleased to provide an
update further to the announcement of 15 September 2025 on the sale process.

The Company advises that it has secured the week commencing 17 November 2025
for its rough stone tender of in excess of 120,000 carats with Trans Atlantic
Gems Dubai, this being the first available date following a temporary slowdown
in diamond demand during the Diwali festival period. The results of the
auction will be announced once available.

As previously announced, the intention of the Company remains to be directly
and indirectly involved in the entire value-chain, where possible, in order to
maximise returns for shareholders.

The Company will provide further updates to the market as appropriate.

**ENDS**

For further information, please visit the Company’s website at
www.vastplc.com or contact:

 Vast Resources plc Andrew Prelea (CEO)                                                              +44 (0) 20 7846 0974                                     
                                                                                                                                                              
 Strand Hanson Limited – Nominated & Financial Adviser James Spinney / James Bellman                 +44 (0) 207 409 3494                                     
                                                                                                                                                              
 Shore Capital Stockbrokers Limited – Joint Broker Toby Gibbs / James Thomas (Corporate Advisory)    +44 (0) 20 7408 4050                                     
                                                                                                                                                              
 Axis Capital Markets Limited – Joint Broker Richard Hutchinson                                      +44 (0) 20 3206 0320                                     
                                                                                                                                                              
 St Brides Partners Limited Susie Geliher                                                            http://www.stbridespartners.co.uk/ +44 (0) 20 7236 1177  

ABOUT VAST RESOURCES

Vast Resources plc is a United Kingdom AIM quoted mining company with mines
and projects in Romania, Tajikistan, and Zimbabwe.

In Romania, the Company is focused on the rapid advancement of high-quality
projects by recommencing production at previously producing mines.

The Company's Romanian portfolio includes 100% interest in Vast Baita Plai SA
which owns 100% of the Baita Plai Polymetallic Mine, located in the Apuseni
Mountains, Transylvania, an area which hosts Romania's largest polymetallic
mines. The mine has a JORC compliant Reserve & Resource Report which underpins
the initial mine production life of approximately 3-4 years with an in-situ
total mineral resource of 15,695 tonnes copper equivalent with a further
1.8M-3M tonnes exploration target. The Company is now working on confirming an
enlarged exploration target of up to 5.8M tonnes.

The Company also owns the Manaila Polymetallic Mine in Romania, which the
Company is looking to bring back into production following a period of care
and maintenance. The Company has also been granted the Manaila Carlibaba
Extended Exploitation Licence that will allow the Company to re-examine the
exploitation of the mineral resources within the larger Manaila Carlibaba
licence area.

The Company retains a continued presence in Zimbabwe. The Company is
re-engaging its future investment strategy in Zimbabwe and has commenced
discussions with further mining concessions in-country alongside its wider
portfolio.

Vast has an interest in a joint venture company which provides exposure to a
near term revenue opportunity from the Takob Mine processing facility in
Tajikistan. The Takob Mine opportunity, which is 100% financed, will provide
Vast with a 12.25 percent royalty over all sales of non-ferrous concentrate
and any other metals produced.

Also in Tajikistan, Vast has been contracted to develop and manage the
Aprelevka gold mines on behalf of its owner Gulf International Minerals Ltd
(“Gulf”) under which Vast is entitled, inter alia, to 10% of the earnings
that Gulf receives from its 49% interest in Aprelevka in joint venture with
the government of Tajikistan. Aprelevka holds four active operational mining
licences located along the Tien Shan Belt that extends through Central Asia,
currently producing approximately 11,600oz of gold and 116,000 oz of silver
per annum. It is the intention of the Company to assist in increasing
Aprelevka’s production from these four mines closer to the historical peak
production rates of approximately 27,000oz of gold and 250,000oz of silver per
year from the operational mines.

The information contained within this announcement is deemed by the Company to
constitute inside information as stipulated under the Market Abuse Regulation
(EU) No. 596/2014 as it forms part of United Kingdom domestic law by virtue of
the European Union (Withdrawal) Act 2018, as amended by virtue of the Market
Abuse (Amendment) (EU Exit) Regulations 2019