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Monday, October 19, 2026 Admin

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Multiestrategia Responsabilidade Limitada do SSF IV Coinvestmento I Fundo de Investimento em Participações an

Mergers & Acquisitions

Holdings in Company

Serabi Gold plc (“Serabi” or the “Company”) (AIM:SRB, TSX:SBI, OTCQX:SRBIF), the Brazilian focused gold mining and development company, announces it has been informed that Greenstone Resources II LP (“Greenstone”), an existing shareholder in the Company, has entered into a binding agreement to sell 15,146,902 shares (representing approximately 19.99% of the issued share capital of the Company) to Classe Roca Magma Multiestrategia Responsabilidade Limitada do SSF IV Coinvestmento I Fundo de Investimento em Participações an investment fund managed by Starboard Asset Ltda (“Starboard”). Starboard is a leading private equity firm in Brazil.

Serabi has been informed by Greenstone that the share sale and purchase agreement between Greenstone and Starboard (the “Agreement”) is unconditional and is expected to be completed within a few weeks.

Mr Mike Hodgson, CEO of Serabi commented, “Greenstone have been a long standing and highly supportive shareholder, but given recent share price performance, I recognise their desire to monetise some of their investment when an opportunity arises. Starboard have been known to Serabi for some time and with their Brazilian footprint, will, I am sure, be an excellent shareholder for the Company.

A spokesperson for Starboard commented; “We are thrilled to have this opportunity to become an investor in Serabi, acquiring just under 20% of the Company through this private transaction with Greenstone. We would like to express our appreciation for Greenstone’s long-standing commitment and support to Serabi over the years. We feel that with our local knowledge and experience we can bring a complementary perspective at the shareholder level.

“Over the past two years, we have been closely following Serabi’s impressive operational progress. Starboard’s intention is to support the management and reinforce the existing strategy, contributing to Serabi’s future and to value creation for all stakeholders.”

Assuming the Agreement is completed Greenstone will continue to own 3,936,492 shares representing 5.20% of the issued share capital of the Company. Starboard will own 15,146,902 shares representing 19.9999% of the issued share capital of the Company.

About Serabi Gold plc

Serabi Gold plc is a gold exploration, development and production company focused on the prolific Tapajós region in Para State, northern Brazil. The Company has consistently produced 30,000 to 40,000 ounces per year with the Palito Complex and is planning to double production in the coming years with the construction of the Coringa Gold project. Serabi Gold plc recently made a copper-gold porphyry discovery on its extensive exploration licence. The Company is headquartered in the United Kingdom with a secondary office in Toronto, Ontario, Canada.

The information contained within this announcement is deemed by the Company to constitute inside information as stipulated under the Market Abuse Regulations (EU) No. 596/2014 as it forms part of UK Domestic Law by virtue of the European Union (Withdrawal) Act 2018.

The person who arranged for the release of this announcement on behalf of the Company was Andrew Khov, Vice President, Investor Relations & Business Development.

Enquiries

SERABI GOLD plc

Michael Hodgson t +44 (0)20 7246 6830 Andrew Khov m +1 647 885 4874 m +44 (0)7799 473621 Chief Executive Vice President, Investor Relations & Business Development TAMESIS PARTNERS LLP e [email protected] Joint UK Broker Charlie Bendon/ Richard Greenfield t +44 (0)20 3882 2868 www.serabigold.com

CAMARCO BEAUMONT CORNISH Limited Financial PR - Europe Nominated Adviser & Financial Adviser

Gordon Poole / Emily Hall t +44 (0)20 3757 4980 Roland Cornish / Michael Cornish t +44 (0)20 7628 3396

HARBOR ACCESS Financial PR – North America PEEL HUNT LLP

Jonathan Patterson / Lisa Micali t +1 475 477 9404

Joint UK Broker

Ross Allister t +44 (0)20 7418 9000

Copies of this announcement are available from the Company's website at www.serabigold.com.

See www.serabigold.com for more information and follow us on twitter @Serabi_Gold

Assay Results and other regulatory changes, actions by governmental authorities, the availability of Assay results reported within this release include those provided by the Company's own capital markets, reliance on key personnel, uninsured and underinsured losses and other on-site laboratory facilities at Palito and have not yet been independently verified. Serabi factors, many of which are beyond the control of the Company. Although any forwardclosely monitors the performance of its own facility against results from independent looking statements contained in this announcement are based upon what the Directors laboratory analysis for quality control purpose. As a matter of normal practice, the believe to be reasonable assumptions, the Company cannot assure investors that actual Company sends duplicate samples derived from a variety of the Company's activities to results will be consistent with such forward looking statements.

accredited laboratory facilities for independent verification. Since mid-2019, over 10,000 exploration drill core samples have been assayed at both the Palito laboratory and certified external laboratory, in most cases the ALS laboratory in Belo Horizonte, Brazil. When Qualified Persons Statement comparing significant assays with grades exceeding 1 g/t gold, comparison between Palito The scientific and technical information contained within this announcement has been versus external results record an average over-estimation by the Palito laboratory of 6.7% reviewed and approved by Michael Hodgson, a Director of the Company. Mr Hodgson is over this period. Based on the results of this work, the Company's management are an Economic Geologist by training with over 30 years' experience in the mining industry. satisfied that the Company's own facility shows sufficiently good correlation with He holds a BSc (Hons) Geology, University of London, a MSc Mining Geology, University independent laboratory facilities for exploration drill samples. The Company would expect of Leicester and is a Fellow of the Institute of Materials, Minerals and Mining and a that in the preparation of any future independent Reserve/Resource statement undertaken Chartered Engineer of the Engineering Council of UK, recognizing him as both a Qualified in compliance with a recognized standard, the independent authors of such a statement Person for the purposes of Canadian National Instrument 43-101 and by the AIM would not use Palito assay results without sufficient duplicates from an appropriately Guidance Note on Mining and Oil & Gas Companies dated June 2009.

certificated laboratory.

Forward-looking statements Notice

Certain statements in this announcement are, or may be deemed to be, forward looking Beaumont Cornish Limited, which is authorised and regulated in the United Kingdom by statements. Forward looking statements are identified by their use of terms and phrases the Financial Conduct Authority, is acting as nominated adviser to the Company in relation such as ‘‘believe’’, ‘‘could’’, “should” ‘‘envisage’’, ‘‘estimate’’, ‘‘intend’’, ‘‘may’’, ‘‘plan’’, ‘‘will’’ to the matters referred herein. Beaumont Cornish Limited is acting exclusively for the or the negative of those, variations or comparable expressions, including references to Company and for no one else in relation to the matters described in this announcement assumptions. These forward-looking statements are not based on historical facts but and is not advising any other person and accordingly will not be responsible to anyone rather on the Directors’ current expectations and assumptions regarding the Company’s other than the Company for providing the protections afforded to clients of Beaumont future growth, results of operations, performance, future capital and other expenditures Cornish Limited, or for providing advice in relation to the contents of this announcement or (including the amount, nature and sources of funding thereof), competitive advantages, any matter referred to in it.

business prospects and opportunities. Such forward looking statements reflect the Directors’ current beliefs and assumptions and are based on information currently available to the Directors. Several factors could cause actual results to differ materially Neither the Toronto Stock Exchange, nor any other securities regulatory authority, has from the results discussed in the forward-looking statements including risks associated approved or disapproved of the contents of this news release with vulnerability to general economic and business conditions, competition, environmental