Endeavour Mining : Quarterly Reporting Document

Q3-2022 OPERATIONAL & FINANCIAL RESULTS PRESENTATION

On track to meet guidance for 10th consecutive year

10 November 2022

SPEAKERS

SÉBASTIEN DE	MARK	JOANNA	PATRICK	MARTINO
MONTESSUS	MORCOMBE	PEARSON	BOUISSET	DE CICCIO
President and CEO	COO	CFO	EVP Exploration	VP Strategy and
			and Growth	Investor Relations

TABLE OF CONTENTS

1

2

3

4

OPERATIONAL AND FINANCIAL HIGHLIGHTS

OPERATING PERFORMANCE BY MINE

CONCLUSION

APPENDIX

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 parameters 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, including the effects and potential effects of the global Covid-19 pandemic.

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

01

SECTION 1

OPERATIONAL AND FINANCIAL

HIGHLIGHTS