Rockfire Resources Regulatory News (ROCK)

The information contained within this announcement is deemed by the Company to constitute inside information pursuant to Article 7 of EU Regulation 596/2014 as it forms part of UK domestic law by virtue of the European Union (Withdrawal) Act 2018 as amended.

1 July 2026

Rockfire Resources plc

("Rockfire" or the "Company")

Molaoi Drilling Update: Germanium Intersected at Over 50g/t

Rockfire Resources plc (LON: ROCK), the base metal, critical mineral and precious metal exploration company, provides a drilling update from Rockfire's 100%-owned Molaoi zinc deposit in Greece. High grade germanium up to 52.3g/t Ge continues to be encountered in drill core.

Highlights

· Diamond drilling to upgrade the Inferred Resource to Indicated Resource status continues with hole HMO-020 currently in progress.

· A high value of 52.3g/t Ge has been intersected over 0.5m wide in hole HMO-017 at 309.5m downhole depth.

· Analytical laboratory results from Hole HMO-017 include:

o  2.20m @ 4.5% Zn, 38.8g/t Ag, 1.2% Pb and 35.7g/t Ge at 254.45m downhole depth.

o  1.00m @ 16.1% Zn, 33.80g/t Ag, 0.7% Pb and 21g/t Ge from 288.00m downhole depth

o  5.9m @ 5.0% Zn, 20.5g/t Ag, 1.4% Pb and 16g/t Ge from 309.50m downhole depth.

· Results from the laboratory for drill holes HMO-018 and HMO-019 are awaited.

· Portable XRF readings from hole HMO-019 include:

o  Peak individual values of 50.0% Zn

o  Peak individual readings up to 18.8% Pb

o  Peak individual silver values including 179g/t Ag and 163g/t Ag

o  2.50% Cu is the highest individual copper reading

The pXRF does not measure germanium.

The cleanliness of the pXRF machine is established by measuring a BLANK reference material (a translucent quartz crystal) at the beginning of each day. A Certified Reference Material (CRM) specific to volcanic-hosted massive sulphide Zn-Pb-Cu-Ag-Au ore (ORES 620) is measured for accuracy/precision of the pXRF machine with a reading taken at the beginning of each day.

Drill hole location map within the Molaoi Licence.

David Price, Chief Executive Officer of Rockfire, commented:

"Results from Hole HMO-017 continue to confirm the widths and grades of the deposit overall - information that will feed into our Indicated Resource upgrade. With each hole drilled, our geological team is monitoring, interpreting and adjusting the geological model. High-grade zinc, silver, germanium and lead values continue to be intersected, and the geological model is holding up under the scrutiny of the drilling rig.

It is pleasing to see that numerous lodes have again been intersected in hole HMO017. An interval of 16% Zn over an interval of 1.0m has the potential to be captured into our underground mine plan using a minimum mechanised mining width of 2.0m. This, of course still results in an average grade of 8% Zn over the 2m mining width. That's even before the valuable by-products of silver and germanium are added to the economics.

The market will continue to be informed and updated as we receive results from the laboratory."

For further information on the Company, please visit www.rockfireresources.com or contact the following:

Qualified Person Statement

The technical information in this announcement is based on information compiled by Mr David Price, the Chief Executive Officer of Rockfire Resources plc, who is a Fellow of the Australasian Institute of Mining and Metallurgy (F.AusIMM). Mr Price has sufficient experience relevant to the style of mineralisation and type of deposit under consideration and to the activity which has been undertaken to qualify as a "Qualified Person" in accordance with the AIM Rules Guidance Note for Mining and Oil & Gas Companies. Mr Price consents to the inclusion in the announcement of the matters based on their information in the form and context in which it appears.

Glossary

Notes to Editors

Rockfire Resources plc (LON: ROCK) is a gold, base metal and critical mineral exploration company, with a high-grade zinc/lead/silver/germanium deposit in Greece and a portfolio of gold/copper/silver projects in Queensland Australia.

· The Molaoi deposit in Greece has a JORC Inferred Mineral Resource of 15.0 million tonnes @ 7.26% Zn, 1.75% Pb and 39.50g/t Ag, for 1.5 million tonnes of ZnEq. metal. This resource uses a 4% low-grade cut, and equates to 1.09 million tonnes of zinc, 260,000 tonnes of lead and 19.1 million ounces of silver. Molaoi is also reported under the UNFC Code with classification E2, F2.1, G3 for Zn, Ag, and Pb, and E3.2, F3.1, G4.1 for Ge.

· The Plateau deposit in Queensland has a JORC Inferred Resource of 131,000 ounces of gold and 800,000 ounces of silver, using a 0.5g/t Au cut off. 53,000 of these ounces lie within the top 100m from surface. Plateau is subject to a farm-in by ASX-listed Sunshine Metals Ltd (ASX:SHN).

· The Marengo prospect in Queensland hosts high-grade gold, silver and copper within an historic goldfield, which is entirely under licence by Rockfire. Marengo is subject to a farm-in by ASX-listed Eastern Resources Ltd (ASX:EFE).