Initial Tin and Copper Metallurgy Testing Results

Rome Resources PLC

02 February 2026

 

2 February 2026

Rome Resources plc

("Rome Resources" or the "Company")

Initial Tin and Copper Metallurgy Testing Results

Rome Resources plc (AIM: RMR), the DRC-focused tin and copper explorer, is pleased to provide an update on the initial results from metallurgical testing of ore samples from its Bisie North project in the Democratic Republic of Congo ("DRC"), located just 8 km from the world-class Alphamin Mpama tin mine complex. This update follows the drilling update provided on 16 January 2026.

Metallurgical testing was undertaken by SGS on bulk samples from the tin, copper and zinc zones in order to assess the potential for commercial recovery of the various commodity metals from the ore.  The results for copper and tin recovery are encouraging.

·   The tin zone sample has responded well to gravity pre-concentration with 80% of the Sn reporting to a first concentrate at a grade of over 10% Sn from a head grade of 0.6% Sn in less than 5% of the mass.

·   The copper zone sample has also responded well to gravity pre-concentration with 96% of the Cu reporting to a concentrate at a grade of 3.7% Cu from a head grade of 2.4% Cu in less than 63% of the mass.

·   The copper sample responded very well to flotation with 95.5% of the Cu reporting to the rougher flotation at a grade of 9.5% Cu. The Zn in this sample followed the Cu and differential flotation may therefore be considered to separate the Cu and Zn.

In all cases customary cleaning of the tin and copper concentrates will be required in order to raise the grade to export levels.

Paul Barrett, Chief Executive Officer of Rome Resources, said:

"These preliminary results are highly encouraging for the potential commercialisation of both the tin and copper at Bisie North.  As the copper is developed at shallow depths in the Mont Agoma deposit, recovery and monetisation of this is expected to be highly accretive to the overall project economics.

Currently, the drilling campaign at Kalayi continues and we will move to Mont Agoma next month to test further the extent of the tin and copper mineralisation. We will update the market in due course."

For further information, please contact:

Investor questions on this announcement We encourage all investors to share questions on this announcement via our investor hub	https://romeresources.com/link/PBJ17P
Rome Resources Plc Paul Barrett, Chief Executive Officer	Tel. [phone]
Allenby Capital Limited (Nominated Adviser and Joint Broker) John Depasquale / Vivek Bhardwaj (Corporate Finance) Kelly Gardiner / Lauren Wright (Sales & Corporate Broking)	Tel. [phone]
OAK Securities (Joint Broker) Jerry Keen, Head of Corporate Broking Henry Clarke, Head of Sales	Tel. [phone]
Camarco (Financial PR) Gordon Poole / Sam Morris	Tel. [phone]

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Qualified Person Statement

Dave Dodd is technical director at Rainbow Rare Earths Limited, holds a BSc in Chem Eng (Manchester) and is a Fellow of the South African Institute of Mining and Metallurgy. He has over 45 years of extractive metallurgy experience covering research and development, technical sales and predominantly metallurgical project development and execution.  Mr. Dodd is a qualified person (QP) as defined by the AIM Note for Mining, Oil and Gas Companies and has reviewed and approved the scientific and technical information contained in this news release

Glossary of abbreviations

"Cu"	Copper
"Sn"	Tin
"Zn"	Zinc

 

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