COMMERCIAL PRODUCTION ACHIEVED.

1 July 2025

Adriatic Metals PLC

('Adriatic Metals' or the 'Company')

COMMERCIAL PRODUCTION ACHIEVED

Adriatic Metals PLC (ASX:ADT, LSE:ADT1, OTCQX:ADMLF) is pleased to announce that it has achieved commercial production at its Vareš Silver Operation in Bosnia and Herzegovina.

Commercial production has been declared based on maintaining plant throughput levels of 75% over 14 days, including 80% over 7 days, and reaching 2,000tpd (90%) in late June.

This milestone follows the resolution of previous constraints related to tailings management. Construction of the Veovača Tailings Storage Facility (TSF) was completed in March, with initial tailings deposition commencing on 2 April. A dedicated access road linking the Vareš Processing Plant to the TSF was completed and has been operational over the past month.

Mining activities at Rupice are progressing well, with approximately 900m of underground development completed in Q2 (a quarterly record). The plant is performing consistently, and key necessary permits, equipment, and personnel are in place to maintain stable production.

Further details will be provided in the Q2 Quarterly Activities Report.

Laura Tyler, Managing Director & CEO of Adriatic, commented:

"We are proud to announce the achievement of commercial production at the Vareš Silver Operation, marking a significant milestone that demonstrates our ability to operate at production levels that support strong cash generation. I extend my sincere thanks to our entire team and management for their unwavering commitment and effort in achieving this important goal."

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Authorised by Laura Tyler, CEO and Managing Director of Adriatic Metals.

For further information please visit: www.adriaticmetals.com; email: info@adriaticmetals.com, or contact:

MARKET ABUSE REGULATION DISCLOSURE

The information contained within this announcement is deemed by the Company (LEI: 549300OHAH2GL1DP0L61) to constitute inside ‎information for the purpose of Article 7 of EU Market Abuse Regulation (EU) No. 596/2014 as it forms part of UK domestic law by virtue of the European Union (Withdrawal) Act 2018, as amended. The person ‎responsible for arranging and authorising the release of this announcement on behalf of the Company is Laura Tyler, CEO and Managing Director.