Rockfire Resources Regulatory News (ROCK)

21 April 2026

Rockfire Resources plc

("Rockfire" or the "Company")

Molaoi Drilling Update

Rockfire Resources plc (LON: ROCK), the base metal, critical mineral and precious metal exploration company, provides the market with a drilling update from Rockfire's 100%-owned Molaoi zinc deposit in Greece.

Highlights

· Diamond drilling to upgrade the Inferred Resource to Indicated Resource status continues with hole HMO-015 successfully completed and drilling of hole HMO-016 currently in progress.

· Rockfire is pleased to announce that a strong zone of mineralisation was intersected in hole HMO-015 based on portable X-Ray Florescence ("pXRF") readings of drill core.

· Individual, peak, spot pXRF readings include 47.7% Zn, 134g/t Ag and 2.6% Pb at approximately 350m depth below surface. The pXRF machine only provides a guide to the strength of mineralisation and does not detect germanium. The core is routinely analysed for germanium at the laboratory.

· Core samples from hole HMO-015 have already been sent to the laboratory for analysis.

· Analytical results from hole HMO-011 have now been received from the laboratory. This hole was drilled in the extreme south of the licence.

· Results from hole HMO-011 include 2.0m @ 5.13% Zn, 20.2g/t Ge, 27.4g/t Ag and 1.33% Pb. This interval commences at 36.10m below surface, with the highest individual assay in this interval being 1.1m @ 9.12% Zn and 30.0g/t Ge.

· Hole HMO-011 demonstrates that zinc, germanium and silver mineralisation remain strong even at the southern extremity of the licence boundary. From historical occurrences, it is expected that mineralisation continues well beyond the current licence boundary. Extensions to the Molaoi Licence can be and will be applied for at the appropriate time.

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.

David Price, Chief Executive Officer of Rockfire, commented:

"Hole HMO-011 is a very successful and encouraging drill hole. It demonstrates that zinc, germanium, lead and silver all continue to the extreme southern boundary of the Molaoi licence, which is an extension we have always suspected, but never had evidence of. The 2m down-hole intercept is a nice, strong result and provides a clear target for exploration in the southern part of the licence to expand the resource."

"Hole HMO-015 was also very successful. The drillers were able to penetrate a fault which has caused problems with some of our recent holes in this area. Highly ground (milled) fault gouge which looks like sand has been a problem for drilling. In this instance, the drillers were successful in penetrating the fault and a strongly mineralised interval was encountered beneath the fault."

"With the Easter holiday season complete, we are underway with hole HMO-016 and drilling is progressing well. We will continue to update the market with our drilling progress including analytical results from the laboratory as they are received and interpreted."

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).