Endeavour Mining : Quarterly Reporting Document

Q1-2024

RESULTS PRESENTATION

2 May 2024

DISCLAIMER & FORWARD LOOKING STATEMENTS

Some of the indicators used by Endeavour in this presentation represent non-IFRS financial measures, including sustaining capital per ounce, non-sustainingcapital per ounce, cash cost per ounce, all in sustaining cost per ounce, all in sustaining margin, adjusted EBITDA, adjusted EPS, operating cash flow pre-workingcapital and operating CFPS pre working capital. These measures are presented as they can provide useful information to assist investors with their evaluation of the pro forma performance. Since the non-IFRS performance measures listed herein do not have any standardized definition prescribed by IFRS, they may not be comparable to similar measures presented by other companies. Accordingly, they are intended to provide additional information and should not be considered in isolation or as a substitute for measures of performance prepared in accordance with IFRS. Please refer to the non-GAAP measures section of the Company's most recently filed management discussion and Analysis for a reconciliation of the non-IFRS financial measures used in this presentation.

This presentation contains "forward-looking statements" within the meaning of applicable securities laws. All statements, other than statements of historical fact, are "forward-looking statements", including but not limited to, statements with respect to Endeavour's plans and operating performance, the timing and amount of estimated future production, costs of future production, future capital expenditures, the success of exploration activities, the anticipated timing for the payment of a shareholder dividend and statements with respect to future dividends payable to the Company's shareholders, the completion of studies, mine life and any potential extensions, the future price of gold and the share buyback program. Generally, these forward-looking statements can be identified by the use of forward-looking terminology such as "expects", "expected", "budgeted", "forecasts", "anticipates", believes", "plan", "target", "opportunities", "objective", "assume", "intention", "goal", "continue", "estimate", "potential", "strategy", "future", "aim", "may", "will", "can", "could", "would" and similar expressions .

Forward-looking statements, while based on management's reasonable estimates, projections and assumptions at the date the statements are made, are subject to risks and uncertainties that may cause actual results to be materially different from those expressed or implied by such forward- looking statements, including but not limited to: risks related to the successful integration of acquisitions or completion of divestitures; risks related to international operations; risks related to general economic conditions and the impact of credit availability on the timing of cash flows and the values of assets and liabilities based on projected future cash flows; Endeavour's financial results, cash flows and future prospects being consistent with Endeavour expectations in amounts sufficient to permit sustained dividend payments; the completion of studies on the timelines currently

expected, and the results of those studies being consistent with Endeavour's current expectations; actual results of current exploration activities; production and cost of sales forecasts for Endeavour meeting expectations; unanticipated reclamation expenses; changes in project parametres as plans continue to be refined; fluctuations in prices of metals including gold; fluctuations in foreign currency exchange rates; increases in market prices of mining consumables; possible variations in ore reserves, grade or recovery rates; failure of plant, equipment or processes to operate as anticipated; extreme weather events, natural disasters, supply disruptions, power disruptions, accidents, pit wall slides, labour disputes, title disputes, claims and limitations on insurance coverage and other risks of the mining industry; delays in the completion of development or construction activities; changes in national and local government legislation, regulation of mining operations, tax rules and regulations and changes in the administration of laws, policies and practices in the jurisdictions in which Endeavour operates; disputes, litigation, regulatory proceedings and audits; adverse political and economic developments in countries in which Endeavour operates, including but not limited to acts of war, terrorism, sabotage, civil disturbances, non-renewal of key licenses by government authorities, or the expropriation or nationalization of any of Endeavour's property; risks associated with illegal and artisanal mining; environmental hazards; and risks associated with new diseases, epidemics and pandemics.

Although Endeavour has attempted to identify important factors that could cause actual results to differ materially from those contained in forward-looking statements, there may be other factors that cause results not to be as anticipated, estimated or intended. There can be no assurance that such statements will prove to be accurate, as actual results and future events could differ materially from those anticipated in such statements. Accordingly, readers should not place undue reliance on forward- looking statements. Please refer to Endeavour's prospectus published on 9 June 2021 and its most recent Annual Information Form filed under its profile at www.sedar.comfor further information respecting the risks affecting Endeavour and its business.

Mark Morcombe, COO of Endeavour Mining PLC., a Fellow of the Australasian Institute of Mining and Metallurgy, is a "Qualified Person" as defined by National Instrument 43-101 - Standards of Disclosure for Mineral Projects ("NI 43-101") and has reviewed and approved the technical information in this presentation.

Note : All amounts are in US$, except where indicated, and may differ from the Management Report due to rounding

SPEAKERS

IAN	MARK	GUY	JACK
COCKERILL	MORCOMBE	YOUNG	GARMAN
CEO	COO	CFO	VP Investor Relations

TABLE OF CONTENTS

1

2

3

4

Q1-2024 HIGHLIGHTS

FINANCIAL RESULTS

OPERATING PERFORMANCE

CONCLUSION

5 APPENDIX

01

SECTION 1

Q1-2024

HIGHLIGHTS

Q1-2024 HIGHLIGHTS

Continuing to deliver against our key objectives

OPERATIONAL	PROJECT	UNLOCKING VALUE
PERFORMANCE	DEVELOPMENT	THROUGH EXPLORATION
On track to meet guidance with strongly H2	BIOX® first gold achieved and commissioning	$25m spent prioritising resource to reserve
weighted performance	of Lafigué underway, with first gold expected	conversion and at the Assafou deposit
	in late Q2	Assafou proejct PFS on track for completion
219koz produced at AISC of $1,186/oz in Q1
Projects delivered on budget and on schedule	by year-end

in under 2 years

HEALTHY

FINANCIAL POSITION

Net debt of $831m and leverage of 0.80x

$237m invested in growth, exploration and

shareholder returns during Q1

ATTRACTIVE SHAREHOLDER

RETURNS

H2-2023 dividend of $100m paid and $13m worth of share buybacks

Focus on increasing shareholder returns with updated framework in early H2

ESG

INITIATIVES

Cathia Lawson-Hall appointed as chair of

Board's ESG committee

Ambitious 2024 ESG targets set

6

OPERATIONAL PERFORMANCE

PRODUCTION AND AISC

FY-2024 operational performance expected to be H2 weighted

Production and AISC1
Production for continuing operations, koz	AISC for continuing operations, US$/oz
268koz	281koz	280koz	Lower production at Houndé	-61koz
		and Sabodala-Massawa inline
			with the mine sequence, in
243koz			addition to the impact of the
		11 day stoppage at Houndé.
			219koz	Production
				Q1-2024 vs Q4-2023
			$1,186/oz

$955/oz	$1,000/oz	$967/oz $947/oz
		ON TRACK

				to achieve Group
				production and AISC
				guidance
Q1-2023	Q2-2023	Q3-2023	Q4-2023	Q1-2024
(1) Excludes the Boungou and Wahgnion mines which were divested on 30 June 2023		7

OPERATIONAL PERFORMANCE

PRODUCTION BRIDGE

H2 weighted production at Houndé and Sabodala-Massawa

Quarterly production bridge
	H2-2024 weighted production				Lower
280koz	(42koz)
					219koz	Production
		(36koz)			Q1-2024 vs Q4-2023
			5koz	12koz
		Lower tonnages of higher
		grade ore mined from the
		Sabodala pit as it is nearing
		the end of its mine life			219koz
	West pit in Q1 in addition to the 11-
	Focus on stripping activity and
	mining from the lower grade Kari
	day stoppage related to the strike
						Production
						in Q1-2024
Q4-2023	Houndé	Sabodala-Massawa	Mana	Ity	Q1-2024
Production					Production
						8

OPERATIONAL PERFORMANCE

ALL-IN SUSTAINING COST BRIDGE

AISC increase largely driven by the decrease in gold production and sales

Quarterly AISC bridge
						$9/oz	$1,186/oz
				$2/oz	$43/oz		$1,186/oz
		-$64/oz
		$32/oz
	$217/oz						AISC in Q1-2024
$947/oz
							H2-2024
							weighted operating
							performance
Q4-2023	Volume of	Mining costs	Processing	Other	Sustaining	Royalties	Q1-2024
AISC	gold sold		costs	operating	capex		AISC

costs1

(1) Includes by-product revenues, inventory build-up and other cash costs	9

ON TRACK TO MEET FULL YEAR GUIDANCE

PERFORMANCE

OPERATIONAL Operational performance expected to be strongly H2 weighted

0.11

GROUP SAFETY

LTIFR1LTM

1.14

Industry Average2

219 koz

GROUP

Q1

PRODUCTION

INDUSTRY LEADING

ON

TRACK

H2-weighted with project ramp ups and improved production at Houndé

H2-weighted improved cost performance as projects ramp up and at Houndé

1,130-1,270koz

Guidance

$1,186/oz

Q1

GROUP AISC	$955/oz	$1,035/oz

Guidance

ON

TRACK

Note: Figures are shown on a continuing operations basis

(1) Lost Time Injury Frequency Rate (LTIFR) = (Number of LTIs in the Period X 1,000,000)/ (Total man hours worked for the period), from continuing operations10

(2) Barclays Research, FY-2022