Endeavour Mining : Sabodala-Massawa 2022 Site Visit

SABODALA-MASSAWA 2022 SITE VISIT

DISCLAIMER AND FORWARD-LOOKING STATEMENTS

Cash cost per ounce and all-in sustaining cash cost per ounce are non-GAAP performance measures with no standard meaning under IFRS. This presentation contains statements which constitute "forward-looking information" within the meaning of applicable securities laws, including but not limited to statements regarding the plans, intentions, beliefs and current expectations of Endeavour with respect to future business activities and operating performance. Forward-looking information is often identified by the words "may", "would", "could", "should", "will", "intend", "plan", "anticipate", "believe", "estimate", "expect" or similar expressions and includes information regarding Endeavour's expectations regarding Endeavour's ability to create sustainable shareholder value over the long term, and the potential for continued or future dividends. Investors are cautioned that forward-looking information is not based on historical facts but instead reflect Endeavour management's expectations, estimates or projections concerning future results or events based on the opinions, assumptions and estimates of management considered reasonable at the date the statements are made. Although Endeavour believes that the expectations reflected in such forward-looking information are reasonable, such information involves risks and uncertainties, and undue reliance should not be placed on such information, as unknown or unpredictable factors could have material adverse effects on future results, performance or achievements of Endeavour. This forward-looking information may be affected by risks and uncertainties in the business of Endeavour and market conditions, 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. Should one or more of these risks or uncertainties materialize, or should assumptions underlying the forward-looking information prove incorrect, actual results may vary materially from those described herein as intended, planned, anticipated, believed, estimated or expected. Although Endeavour has attempted to identify important risks, uncertainties and factors which could cause actual results to differ materially, there may be others that cause results not to be as anticipated, estimated or intended. Endeavour does not intend, and does not assume any obligation, to update this forward-looking information except as otherwise required by applicable law.

This information is qualified in its entirety by cautionary statements and risk factor disclosure contained in the most recent filings made by Endeavour with the Canadian securities regulators, including Endeavour's annual information form and/or financial statements and related MD&A for the most recent reported period filed with the securities regulatory authorities in certain provinces of Canada and available at www.sedar.com.

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 MD&A due to rounding.

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TABLE OF CONTENTS

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Site Visit Key Takeaways

Our Presence in Senegal

Mine Overview

Exploration

Appendix

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SITE VISIT KEY TAKEAWAYS

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SITE VISIT KEY TAKEAWAYS

SITE VISIT ITINERARY

09:30 Arrival to Sabodala-Massawa10:00 Introduction presentation 11:00 Visit viewpoint on RL737 lookout 11:20 Plant tour

12:20 Lunch and exploration presentation

13:20 Visit Sabodala pit

13:50 Drive to Massawa 14:20 Visit ROM pad

14:35 Visit Massawa Central Zone pit 15:20 Visit New Sabodala village

15:50 Q&A and refreshments 16:20 Depart for Dakar

Towards	Power	Processing	Crushing
Airstrip
Generation
	Plant
BIOX Expansion
	Admin Buildings

TSF 1

Towards

Sabodala Camp

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