Transaction in Own Shares

ENDEAVOUR ANNOUNCES TRANSACTION IN OWN SHARES

London , 19 July 2021– Endeavour Mining plc (LSE: EDV) (“the Company”) announces today it has purchased the following number of its ordinary shares of USD 0.01 each from Stifel Nicolaus Europe Limited.

Aggregated information

Date of purchase:	19 July 2021
Aggregate number of ordinary shares of USD 0.01 each purchased:	93,700
Lowest price paid per share ( GBp ):	1,643.4307
Highest price paid per share ( GBp ):	1,643.4307
Volume weighted avera ge price paid per share ( GBp ):	1,643.4307

Following the cancellation of the repurchased shares, the Company will have no ordinary shares in treasury and 250,212,607 ordinary shares in issue. Therefore the total voting rights in the Company will be 250,212,607. This figure for the total number of voting rights may be used by shareholders as the denominator for the calculations by which they will determine if they are required to notify their interest in, or a change to their interest in, the Company under the FCA's Disclosure Guidance and Transparency Rules.

These share purchases form part of the Company's buy-back programme announced on 15 June 2021. Further to its press release of June 15, 2021, Endeavour intends to instruct Stifel Nicolaus Europe Limited to widen the share repurchase programme to purchase shares on the London Stock Exchange effective from 19 July 2021, in addition to continuing the programme on the Toronto Stock Exchange.

Transaction details

In accordance with Article 5(1)(b) of Regulation (EU) No 596/2014 (the Market Abuse Regulation), the table below contains detailed information of the individual trades made by Stifel Nicolaus Europe Limited as part of the buyback programme.

Schedule of purchases

Shares purchased: Endeavour Mining plc (ISIN: GB00BL6K5J42)

Date of purchases: 19 July 2021

Investment firm: Stifel Nicolaus Europe Limited

Individual transactions

Transaction date and time	Volume	Price ( GBp )	Trading Venue
19 July 2021 , 07:15	93,700	1,643.4307	LSE

CONTACT INFORMATION

Endeavour Mining Martino De Ciccio Vice President - Strategy & Investor Relations [phone] [e-mail]

Brunswick Group LLP in London Carole Cable, Partner [phone] [e-mail]   Vincic Advisors in Toronto John Vincic, Principal [phone] [e-mail]

ABOUT ENDEAVOUR MINING PLC

Endeavour is one of the world’s senior gold producers and the largest in West Africa, with operating assets across Senegal, Cote d’Ivoire and Burkina Faso and a strong portfolio of advanced development projects and exploration assets in the highly prospective Birimian Greenstone Belt across West Africa.

A member of the World Gold Council, Endeavour is committed to the principles of responsible mining and delivering sustainable value to its employees, stakeholders and the communities where it operates. Endeavour is listed on the Toronto Stock Exchange, under the symbol EDV.

For more information, please visit www.endeavourmining.com .

CAUTIONARY NOTE REGARDING FORWARD-LOOKING INFORMATION

This press release 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 the benefits of a premium listing in the UK with shares traded on the LSE including deeper access to a diverse investor pool with strong understanding of its key operating jurisdictions across West Africa and increased demand for its shares on the assumption that it will qualify for inclusion in the FTSE UK Index Series as well as the MSCI Europe Index, 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.

This information is qualified in its entirety by cautionary statements and risk factor disclosure contained in filings made by Endeavour with the Canadian securities regulators, including Endeavour’s annual information form for the financial year ended December 31, 2020 and financial statements and related MD&A for the financial year ended December 31, 2020 filed with the securities regulatory authorities in certain provinces of Canada and available at www.sedar.com.

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.

Neither the Toronto Stock Exchange nor the Investment Industry Regulatory Organization of Canada accepts responsibility for the adequacy or accuracy of this press release .

Attachment

• Transaction in own shares