Saturday, September 26, 2026
MiningNewsTerminal
Saturday, September 26, 2026 Admin

SBI.TO ·

The Long Barn, Cobham Park Road, Downside, Surrey KT11 3NE This document is not intended to and does

Corporate Updates

PRESS RELEASE 14 OCTOBER 2025

SERABI GOLD plc (“Serabi” or “the Company”)

SERABI GOLD PLC

The Long Barn, Cobham Park Road, Downside, Surrey KT11 3NE This document is not intended to and does

t +44 (0)20 7246 6830 e [email protected] www.serabigold.com not amount to an invitation or inducement to

Registered Office 66 Lincoln’s Inn Fields, London, WC2A 3LH Company Number 5131528 subscribe for shares in Serabi Gold plc

Reports a Record Quarterly Production in Q3-2025 of 12,090 Gold Ounces and Provides

Operational Highlights

Serabi Gold plc (“Serabi” or the “Company”) (AIM:SRB, TSX:SBI, OTCQX:SRBIF), the Brazilian focused gold

mining and development company , is pleased to announce the Company’s third quarter production results and

operating highlights for FY2025 (all financial amounts are expressed in U.S. dollars unless otherwise indicated).

Q3-2025 OPERATIONAL HIGHLIGHTS

• Record quarterly gold production of 12,090 ounces, a 27% increase from Q3-2024.

• A total of 3,875 metres of horizontal development for the quarter, a 17% increase on Q3-2024.

• Cash as at 30 September 2025 of $38.8 million, vs $30.4 million as at 30 June 2025 , an increase of $8.4

million during the quarter.

• Net cash at quarter -end (after interest bearing loans and lease liabilities) of $33.0 million (Q2-2025: $24.6

million).

• The Company remains on track to achieve 2025 consolidated production guidance of 44,000 – 47,000

ounces gold.

• On 9 September 2025, Serabi provided an update on the 30,000m 2025 brownfield surface drill

programme as part of Phase II of the Company’s growth strategy, which is evenly divided between the

Palito Complex and Coringa (Link to press release). Key highlights of the programme year-to-date

including:

o Discovery of new orebody at Coringa (Serra South zone) located ~500 meters south of Serra mine

o Strike extension of the Meio zone trend at Coringa

o Significant extensions of the Senna orebody to both the north and south at Palito Complex

• Highlight intercepts from the 2025 brownfield surface drill programme include:

o Hole 25-SR-010 - 0.53m @ 151.00 g/t Au from 60.68m (ALS lab @ Serra)

o Hole 25-SE-004 - 1.36m @ 17.99 g/t Au from 195.50m including 0.33 m 58.40 g/t (ALS lab @

Senna)

o Hole 25-SE-005 - 0.41m @ 13.95 g/t Au from 40.72m (ALS lab @ Senna)

o Hole 25-SE-001 - 3.40m @ 6.64 g/t Au from 274.00m including 0.60 m 26.80 g/t (ALS lab @

Senna)

o Hole 25-SR-005 - 0.79m @ 25.66 g/t Au from 117.70m (ALS lab @ Serra)

o Hole 25-SR-004 - 0.25m @ 58.80 g/t Au from 233.62m (ALS lab @ Serra)

o Hole 25-ME-002 - 0.52m @ 18.45 g/t Au from 380.94m (ALS lab @ Meio)

o Hole 25-PI-003 - 1.00m @ 8.90 g/t Au from 373.00m (ALS lab @ Piaui)

o Hole 25-AR-001 - 0.30m @ 24.20 g/t Au from 167.90m (ALS lab @ Arantes)

o Hole 25-SR-022 - 0.25m @ 67.91 g/t Au from 223.92m (Palito lab @ Serra)

o Hole 25-SR-024 - 0.35m @ 64.17 g/t Au from 192.09m (Palito lab @ Serra)

o Hole 25-SR-028 - 0.87m @ 137.48 g/t Au from 303.00m including 0.32m @ 322.10 g/t Au (Palito

lab @ Serra)

o Hole 25-GA-009 – 0.31m @ 25.70 g/t Au from 308.94m (ALS lab @ Galena)

Note: All drill results above have been sent to ALS for assay testing. ‘ALS lab’ denotes the results were assayed and test results received

from ALS while ‘Palito lab’ denotes assays drill results sent to ALS for testing but test results are not yet received and therefore represent

Serabi internal assay results.

• On 31 July 2025, The Company published an updated NI 43-101 mineral resource estimate and mineral

reserve estimate for its 100% owned Palito Complex, located in Pará State, Brazil, within the Tapajós region.

The Technical Report was prepared by NCL Ingeniería y Construcción SpA of Santiago de Chile (Link to

press release).

PRESS RELEASE 14 OCTOBER 2025

SERABI GOLD plc (“Serabi” or “the Company”)

SERABI GOLD PLC

The Long Barn, Cobham Park Road, Downside, Surrey KT11 3NE This document is not intended to and does

t +44 (0)20 7246 6830 e [email protected] www.serabigold.com not amount to an invitation or inducement to

Registered Office 66 Lincoln’s Inn Fields, London, WC2A 3LH Company Number 5131528 subscribe for shares in Serabi Gold plc

Mike Hodgson, CEO of Serabi, commented:

“We are pleased to report an excellent third quarter , producing 12,090 ounces, by far the best quarter of gold

production in Serabi’s history . Year-to-date Q3-2025 gold production of 32,635 ounces is tracking well towards

guidance. Development rates remain excellent, with another 3,875m of horizontal development metres recorded.

Gold production increased by 27% vs. Q3-2024, driven by grade improvements at both the Palito Complex and

Coringa. A year ago, plant feed grades were averaging 5.43 g/t Au, whereas in YTD Q3-2025, grades are almost 7.0

g/t Au.

At Coringa, the ore sorter has been a game changer, operating for 9 consecutive months with excellent performance.

As reported last quarter, we took advantage of favourable economics and have been using the ore sorter to process

low grade ore stockpiled since the Coringa mine opened, whilst higher grade run of mine (ROM) has been transported

directly to the Palito Complex processing plant. This strategy enabled us to produce more ounces from Coringa this

year than originally planned. With this low-grade stockpile now run down, more ROM ore is now passing through the

sorter.

Mining activity at Coringa is from two sectors, the Serra and Meio zones. The Serra zone has been the backbone of

production for the past 3 years, with Meio now in development with the first stopes starting. Both zones are still

shallow, with all activity within 200m from surface. At the Serra zone, we are blessed with excellent ground conditions,

and as reported last quarter, the Meio zone’s ground conditions are weaker, mostly due to its proximity to surface

and the weathered zone. The first attempts at mechanised mining have proved challenging, however I am pleased

to say after numerous trials, increased systematic cable bolting, reduced drilling level spacing and improved blasting

technology brought very favourable results. The proximity to surface and rock conditions remains somewhat

weathered, but as we deepen, we expect conditions to improve, and the development on lower levels is proving this

to be the case.

At the Serra zone, good rock conditions and superb performance of this ore through the ore sorter has allowed us to

introduce more mechanised stoping, which although equates to more dilution, can be simply removed by the ore

sorter with the net effect being that mechanised mining is safer, reduces mining costs, and speeds up production.

During the quarter, the ramp up of Coringa continued, as we initiated the preparation of the Galena zone, which will

be the third portal at Coringa. The Galena zone is expected to contribute significant development ore during 2026.

At the Palito Complex, grade continue d to improve as the year-to-date 2025 mined grades of 6.21 g/t Au is a

significant improvement from 4.56 g/t Au for the same 9 months of 2024. Much of this improvement has come from

stoping the Barrichello zone, along with improved grades from the G3 vein on levels -20m and -85m.

Our brownfield exploration programme continued at pace, with three active drill rigs at the Palito Complex and

three at Coringa, as we target 30,000 metres of drilling this year. The standout results have been the discovery of

the Serra South zone at Coringa, approximately 500 metres south of the currently producing Serra zone. We have

three rigs at Serra South as we anticipate significant resource growth on the Serra orebody. We’ve also

successfully extended the Meio zone trend. At the Palito Complex, the main success to date has been the north

and south extensions of the Senna zone. These successes indicate we remain on track of obtaining our Phase II

growth goal of increasing the current mineral resource inventory to 1.5Moz Au - 2.0Moz Au.

Our cash balance continues to grow, driven by the strong operational performance of our mines. It is with great timing

for our cash balance, that the improvement in our gold grades at the Palito Complex and the success of the ore sorter

at Coringa has come at a time of unprecedented gold prices. We anticipate further success into the fourth quarter,

as our production profile remains on track to meet guidance.”

PRESS RELEASE 14 OCTOBER 2025

SERABI GOLD plc (“Serabi” or “the Company”)

SERABI GOLD PLC

The Long Barn, Cobham Park Road, Downside, Surrey KT11 3NE This document is not intended to and does

t +44 (0)20 7246 6830 e [email protected] www.serabigold.com not amount to an invitation or inducement to

Registered Office 66 Lincoln’s Inn Fields, London, WC2A 3LH Company Number 5131528 subscribe for shares in Serabi Gold plc

OPERATIONAL RESULTS

SUMMARY PRODUCTION STATISTICS FOR 2025 AND 2024

Q1 Q2 Q3 YTD Q1 Q2 Q3 Q4 Fiscal

2025 2025 2025 2025 2024 2024 2024 2024 2024

Group

Gold production (1)(2) Ounces 10,013 10,532 12,090 32,635 9,007 9,003 9,489 10,022 37,521

Mined ore Tonnes 44,924 52,032 51,625 148,581 56,296 59,564 58,682 50,327 224,869

Gold grade (g/t) 7.09 6.72 7.24 7.01 5.31 5.06 5.48 6.19 5.49

Milled ore Tonnes 48,155 51,246 53,991 153,392 54,521 55,192 54,579 52,363 216,655

Gold grade (g/t) 6.70 6.67 7.18 6.86 5.38 5.31 5.59 6.21 5.62

Horizontal development Metres 3,505 3,850 3,875 11,230 3,131 3,550 3,325 3,129 13,135

Palito Complex

Gold production (1)(2) Ounces 4,666 5,607 5,246 15,519 5,135 4,251 3,648 4,369 17,403

Mined ore Tonnes 25,267 29,294 26,352 80,913 36,471 30,488 26,878 23,642 117,479

Gold grade (g/t) 6.15 6.22 6.29 6.22 4.72 4.52 4.34 6.10 4.86

Milled ore Tonnes 24,328 29,885 27,081 81,294 35,861 30,750 27,454 23,719 117,784

Gold grade (g/t) 6.25 6.15 6.25 6.21 4.73 4.56 4.33 6.05 4.86

Horizontal development Metres 1,979 2,004 2,074 6,057 2,153 2,315 1,859 1,948 8,275

Coringa

Gold production (1)(2) Ounces 5,347 4,925 6,843 17,115 3,871 4,752 5,841 5,653 20,117

Mined ore Tonnes 19,657 22,738 25,273 67,668 19,825 29,076 31,984 26,685 107,570

Gold grade (g/t) 8.31 7.35 8.23 7.96 6.39 5.62 6.44 6.27 6.17

Milled ore Tonnes 23,827 21,361 26,909 72,097 18,660 24,441 27,125 28,645 98,871

Gold grade (g/t) 7.17 7.39 8.13 7.59 6.61 6.25 6.87 6.34 6.51

Horizontal development Metres 1,526 1,846 1,801 5,173 978 1,235 1,466 1,181 4,860

(1) The table may not sum due to rounding.

(2) Production numbers are subject to change pending final assay analysis from refineries.

Group production for the third quarter was 12,090 ounces. Group ore mined during the quarter was 51,625 tonnes

@ 7.24 g/t Au compared to 52,032 tonnes at 6.72 g/t Au for the second quarter of 2025. The Palito Complex process

plant treated 53,991 tonnes @ 7.18 g/t Au compared to 51,246 tonnes at 6.67 g/t Au for Q2-2025.

A total of 3,875 metres of horizontal development has been completed for the quarter of which 2,016 metres was ore

development. The balance was the ramp, crosscuts and stope preparation development.

The Coringa Mine continues to perform well. On the Serra zone, p roduction was focused on the levels of 260m,

225m, 195m, and 158m, with development on levels 158m, 143m and 125m. The newly intersected Meio zone is in

development with levels 356m, 336m and 318m advanced and stoping ongoing on levels 356m and 336m.

The Palito Complex production and development is varied, with production from the Barrichello and G3 zones.

Development is ongoing on the Senna, Piquet, G3 and Ramo Senna zones, ranging from upper levels 167m down

to -210m level on G3.

FINANCE UPDATE

Cash balances at the end of September 2025 were $38.8 million, in comparison to the cash balances at the end of

December 2024 of $22.2 million. On 6 January 2025 the Company fully repaid its $5.0 million unsecured loan

arrangement with Itau Bank in Brazil which carried an interest coupon of 8.47 %. On 22 January 2025, the Group

secured a new $5.0 million loan from Banco Santander. The Banco Santander loan is repayable as a bullet payment

on 21 January 2026 and carries an interest coupon of 6.16%. The Company had a net cash balance at the end of

Q3-2025 (after interest bearing loans and lease liabilities) of $ 33.0 million (31 December 2024: net cash $16.2

million).

PRESS RELEASE 14 OCTOBER 2025

SERABI GOLD plc (“Serabi” or “the Company”)

SERABI GOLD PLC

The Long Barn, Cobham Park Road, Downside, Surrey KT11 3NE This document is not intended to and does

t +44 (0)20 7246 6830 e [email protected] www.serabigold.com not amount to an invitation or inducement to

Registered Office 66 Lincoln’s Inn Fields, London, WC2A 3LH Company Number 5131528 subscribe for shares in Serabi Gold plc

FY2025 PRODUCTION GUIDANCE

The Company remains on track to achieve 2025 consolidated production guidance of 44,000 – 47,000 ounces gold.

About Serabi Gold plc

Serabi Gold plc is a gold exploration, development and production company focused on the prolific Tapaj ós 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

Chief Executive m +44 (0)7799 473621

Colm Howlin

Chief Financial Officer m +353 89 6078171

Andrew Khov m +1 647 885 4874

Vice President, Investor Relations &

Business Development

e [email protected]

www.serabigold.com

BEAUMONT CORNISH Limited

Nominated Adviser & Financial Adviser

Roland Cornish / Michael Cornish t +44 (0)20 7628 3396

PEEL HUNT LLP

Joint UK Broker

Ross Allister / Georgia Langoulant t +44 (0)20 7418 9000

TAMESIS PARTNERS LLP

Joint UK Broker

Charlie Bendon/ Richard Greenfield t +44 (0)20 3882 2868

CAMARCO

Financial PR - Europe

Gordon Poole / Emily Hall t +44 (0)20 3757 4980

Assay Results

Assay results reported within this release include those provided by the Company's own

on-site laboratory facilities at Palito and have not yet been independently verified. Serabi

closely monitors the performance of its own facility against results from independent

laboratory analysis for quality control purpose. As a matter of normal practice, the

Company sends duplicate samples derived from a variety of the Company's activities to

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

comparing significant assays with grades exceeding 1 g/t gold, comparison between Palito

versus external results record an average over-estimation by the Palito laboratory of 6.7%

over this period. Based on the results of this work, the Company's management are

satisfied that the Company's own facility shows sufficiently good correlation with

independent laboratory facilities for exploration drill samples. The Company would expect

that in the preparation of any future independent Reserve/Resource statement undertaken

in compliance with a recognized standard, the independent authors of such a statement

would not use Palito assay results without sufficient duplicates from an appropriately

certificated laboratory.

Forward-looking statements

Certain statements in this announcement are, or may be deemed to be, forward looking

statements. Forward looking statements are identified by their use of terms and phrases

such as ‘‘believe’’, ‘‘could’’, “should” ‘‘envisage’’, ‘‘estimate’’, ‘‘intend’’, ‘‘may’’, ‘‘plan’’, ‘‘will’’

or the negative of those, variations or comparable expressions, including references to

assumptions. These forward-looking statements are not based on historical facts but

rather on the Directors’ current expectations and assumptions regarding the Company’s

future growth, results of operations, performance, future capital and other expenditures

(including the amount, nature and sources of funding thereof), competitive advantages,

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

from the results discussed in the forward-looking statements including risks associated

with vulnerability to general economic and business conditions, competition, environmental

and other regulatory changes, actions by governmental authorities, the availability of

capital markets, reliance on key personnel, uninsured and underinsured losses and other

factors, many of which are beyond the control of the Company. Although any forward-

looking statements contained in this announcement are based upon what the Directors

believe to be reasonable assumptions, the Company cannot assure investors that actual

results will be consistent with such forward looking statements.

Qualified Persons Statement

The scientific and technical information contained within this announcement has been

reviewed and approved by Michael Hodgson, a Director of the Company. Mr Hodgson is

an Economic Geologist by training with over 30 years' experience in the mining industry.

He holds a BSc (Hons) Geology, University of London, a MSc Mining Geology, University

of Leicester and is a Fellow of the Institute of Materials, Minerals and Mining and a

Chartered Engineer of the Engineering Council of UK, recognizing him as both a Qualified

Person for the purposes of Canadian National Instrument 43-101 and by the AIM

Guidance Note on Mining and Oil & Gas Companies dated June 2009.

Notice

Beaumont Cornish Limited, which is authorised and regulated in the United Kingdom by

the Financial Conduct Authority, is acting as nominated adviser to the Company in relation

to the matters referred herein. Beaumont Cornish Limited is acting exclusively for the

Company and for no one else in relation to the matters described in this announcement

and is not advising any other person and accordingly will not be responsible to anyone

other than the Company for providing the protections afforded to clients of Beaumont

Cornish Limited, or for providing advice in relation to the contents of this announcement or

any matter referred to in it.

Neither the Toronto Stock Exchange, nor any other securities regulatory authority, has

approved or disapproved of the contents of this news release

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