8-K - MUX - Equibles

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) ofthe Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): February 22, 2021

McEWEN MINING INC.

(Exact name of registrant as specified in its charter)

Colorado<br> (State or other jurisdiction of<br> incorporation or organization)	001-33190<br> (Commission File<br> Number)	84-0796160<br> (I.R.S. Employer<br> Identification No.)

150 King Street West, Suite 2800

Toronto, Ontario, Canada M5H 1J9

(Address of principal executive offices) (Zip Code)

Registrant’s telephone number including area code:

(866) 441-0690

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

¨ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

¨ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

¨ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

¨ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class	Trading Symbol(s)	Name of each exchange on which registered
Common Stock	MUX	New York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ¨

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ¨

Item 7.01	Regulation FD Disclosure

On February 22, 2021, McEwen Mining Inc. (the “Company”) issued a press release announcing the filing of a technical report (feasibility study) for its Gold Bar Mine located in Nevada. A copy of the press release is attached to this report as Exhibit 99.1. The complete report is available on Sedar under the Company’s profile.

The information furnished under this Item 7.01, including the exhibit, shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, except as shall be expressly set forth by reference to such filing.

Item 9.01	FinancialStatements and Exhibits.
(d)	Exhibits. The following exhibit is furnished with this<br>report:
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99.1	Press release dated February 22, 2021
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104	Cover Page Interactive Data File – the cover page<br>XBRL tags are embedded within the Inline XBRL document (contained in Exhibit 101)
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Cautionary Statement

With the exception of historical matters, the matters discussed in the press release include forward-looking statements within the meaning of applicable securities laws that involve risks and uncertainties that could cause actual results to differ materially from projections or estimates contained therein. Such forward-looking statements include, among others, statements regarding future exploration, development, construction and production activities. Factors that could cause actual results to differ materially from projections or estimates include, among others, the continuing effects of the COVID-19 pandemic and related governmental responses, metal prices, economic and market conditions, operating costs, receipt of permits, receipt of working capital, and future drilling results, as well as other factors described in the Company’s Annual Report on Form 10-K for the year ended December 31, 2019, and other filings with the United States Securities and Exchange Commission. Most of these factors are beyond the Company’s ability to predict or control. The Company disclaims any obligation to update any forward-looking statement made in the press release, whether as a result of new information, future events, or otherwise. Readers are cautioned not to put undue reliance on forward-looking statements.

SIGNATURE

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

	McEWEN MINING INC.
Date: February 23, 2021	By:	/s/ Carmen Diges
		Carmen Diges, General Counsel

Exhibit 99.1

MCEWEN MINING: GOLD BAR UPDATED FEASIBILITYSTUDY REPORT FILED

TORONTO,February 22, 2021 - McEwen Mining Inc. (NYSE: MUX) (TSX: MUX) **(“McEwen” or the “Company”)**is pleased to announce the filing of an updated technical report prepared in accordance with National Instrument 43-101 – Standards of Disclosure for Mineral Projects (“NI 43-101”), for the Gold Bar Mine (the “Feasibility Study” or “FS”). The technical report is available on SEDAR under the Company's profile at www.sedar.com.

Financial Analysis

The FS Base Case using a gold price assumption of $1,500/oz generates a life-of-mine (LoM) discounted after-tax value of $55.2 million at an 8% discount rate. A summary of key economic metrics is provided in Table 1.

Table1. After-Tax Economic Sensitivity (2020 FS)

	Base Case 1,500/oz gold
NPV (8% Discount Rate)^(1)^	55.2 million
Average Annual Cash Flow	14.4 million
Average Operational Margin $/oz Au	407
Total Cash Costs $/oz Au	1,093
All-In Sustaining Costs (AISC) $/oz Au	1,213

All values are in US Dollars.

Over the 6-year mine life, production will total 17.2 million tons of ore at a diluted gold grade of 0.025 oz/t (0.84 g/t) for a total payable gold of 302,000 oz as at Dec. 1^st^, 2020. A summary of the gold production for the 6-year mine life included in the FS is described in Table 2.

Table 2. Estimated Gold Productionby Year (2020 FS)

Gold Production^(2)^	FY2021		FY2022		FY2023		FY2024		FY2025		FY2026		FY2027
Total (,000 oz Au)		37.5		38.2		51.2		37.6		47.6		60.1		25.0

Background

In Q1 2020, the Company reported that a significant reduction in contained ounces at Gold Bar was likely. Since that time significant work, as described below, has been completed to determine the extent of the reduction and mitigate it. To provide perspective on the changes that have occurred at Gold Bar, consider that in 2019, when we started mining, the Reserve estimate was 430,000 gold ounces. Cumulative mine production through December 2020 was 58,600 gold ounces, and the Reserve estimate announced today is 302,000 gold ounces. The net reduction of 16%^(3)^ is driven by improvements to the geologic model, metallurgical recovery, additional drilling information, and higher gold prices.

Work completed in 2020 to arrive at the updated resource and reserve estimates:

110,500 feet (33,700 m) of drilling and<br>additional metallurgical testing was incorporated into the Resource and Reserve estimates. The drilling program included 64,000<br>feet (19,500 m) at the Pick deposit and 35,000 feet (10,700 m) at Gold Bar South (“GBS”). An ongoing drill program<br>at the Gold Ridge deposit (“Ridge”) with 13,000 feet (4,000 m) drilled to date will be incorporated in a future resource<br>update.

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·	The Pick, Ridge, Cabin, and GBS geological<br>models and resource estimates were updated by McEwen Mining technical staff. The geologic interpretations were updated to include<br>structural modeling for all deposits. All resource and reserve estimates were subject to independent third-party review for quality<br>assurance.
·	Experts in the field of heap leach technology<br>were engaged to review ore processing and recommended improvements based on test work and site observations, which include ending<br>agglomeration, revised recovery estimates for all resources, and categorization of resources based on metallurgical attributes<br>and clay content.
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·	Metallurgical testing is underway to assess<br>an expected increase in leaching of run-of-mine (ROM) ores and its potential to improve the economics.
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Mining and Processing

The FS calls for oxide ore to be mined from three open pits and transported by 100-ton haul trucks to be processed, either by crushing and conveying to the heap leach pad, or by using trucks to place run-of-mine (ROM) ore on the heap leach pad. The study assumes the continued use of a contract mining fleet. The existing adsorption-desorption recovery (ADR) carbon plant will continue to produce a final gold-silver doré product.

A summary of the design criteria for the FS are provided in Table 3.

Table 3. Metallurgical and OperatingCost Estimates Used


Gold Price (/oz Au)	$1,500 Reserves<br> $1,725 Resources
Overall Process Recovery	72%^(4)^
Mining Cost	$2.28/t moved
Process Cost	$4.32/ton ore
G&A Cost	$3.27/ton ore
Sales Cost	$2.01/oz Au sold

All values are in US Dollars.

Explanation of Variances

The 2020 FS update generates an NPV@8% of $55.2 million using a gold price of $1,500/oz and of $149.2 million for a gold price of $1,900/oz^(5)^. The NPV estimates provided on January 7^th^, 2021 were in the range of $62 to $76 million using a gold price of $1,500/oz and of $150 to $170 million for a gold price of $1,900/oz. The estimates provided on January 7^th^ were based on the most accurate and complete information available to management at the time. The FS economic model was adjusted, including a reduction of 1,500 oz in the planned placed ounces, and an increase of $0.09/ton in fuel cost based on haulage simulations.

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Resources and Reserves

Updated Resource and Reserve Estimates are provided in Tables4 to 6.

Table 4. Indicated Resource Estimate^(6)(7)^($1,725per Ounce Gold, Effective Dec 1^st^, 2020)

Pit
Pick	13,950	0.027	0.91	0.67	370.2	270.7
GBS	2,573	0.029	0.99	0.60	74.4	45.4
Ridge	1,527	0.026	0.88	0.68	39.3	30.5
Cabin	420	0.024	0.81	0.60	9.9	7.4
Total	18,470	0.027	0.92	0.66	493.7	353.9

Table 5. Inferred Resource Estimate^(7)(8)^($1,725per Ounce Gold, Effective Dec 1^st^, 2020)

Pit
Pick	1,080	0.025	0.85	0.64	26.6	20.0
Ridge	751	0.019	0.65	0.50	14.3	11.0
GBS	362	0.031	1.06	0.65	11.2	6.9
Total	2,193	0.024	0.82	0.59	52.1	37.8

Table 6. Probable Reserve Estimate^(7)(9)^ ($1,500per Ounce Gold, Effective Dec 1^st^, 2020)

Pit
Pick	13,927	0.024	0.81	0.59	327.3	238.5
Ridge	1,186	0.025	0.87	0.68	30.2	23.4
GBS	2,135	0.031	1.05	0.64	65.7	40.1
Total	17,249	0.025	0.84	0.60	423.1	302.0

Notes:

1)	NPV is discounted to December 1, 2020.
2)	Table 2 excludes production in Dec. 2020 and from residual leaching in 2028.
3)	Mine Past Production (58,600 oz Au) + Current Reserves (302,000 oz Au) = 360,600 oz Au is 16.1% lower than 430,000 oz Au
4)	2020 FS assumes 78% for crushed oxide, 50% for crushed mid-carb., 72% for Pick/Ridge ROM, and 61% for GBS ROM.
5)	Upside Case gold price used in the 2020 FS is $1,800/oz. NPV at $1,900/oz gold is provided<br>for comparison to the Jan. 7^th^, 2021 disclosure only.
6)	Mineral Resources were estimated at a price of $1,725/ounce Au and are inclusive of Mineral Reserves. Mineral Resources are<br>not Mineral Reserves and do not have demonstrated economic viability. There is no certainty that any part of the Mineral Resources<br>estimated will be converted into a Mineral Reserves estimate. Mineral Resources were estimated using the guidelines set out in<br>the CIM Definition Standards for Mineral Resources. Mineral Resources as stated are contained within an optimised pit shell that<br>demonstrates reasonable prospects for eventual economic extraction.
7)	Numbers in the tables have been rounded to reflect the accuracy of the estimates and may not sum due to rounding.
8)	The Inferred Mineral Resource in these estimates has a lower level of confidence than that applied to an Indicated Mineral<br>Resource and must not be converted to a Mineral Reserve. It is reasonably expected that the majority of the Inferred Mineral Resource<br>could be upgraded to an Indicated Mineral Resource with continued exploration. Quantity and grade of reported Inferred resources<br>are uncertain in nature and there has been insufficient exploration to classify these Inferred resources as Measured or Indicated.
9)	Reserves were estimated at a price of $1,500/ounce Au and are contained within an engineered pit<br>design based on a Lerch Grossman Algorithm.

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CAUTIONARY NOTE TO US INVESTORS REGARDING RESOURCE ESTIMATION

McEwen Mining presently prepares its resource estimates in accordance with standards of the Canadian Institute of Mining, Metallurgy and Petroleum referred to in Canadian National Instrument 43-101 (NI 43-101). These standards are different from the standards permitted in reports filed with the SEC under Industry Guide 7 (“Guide 7”). Under NI 43-101, McEwen Mining reports measured, indicated and inferred resources, measurements which are generally not permitted in filings made with the SEC under Guide 7. The estimation of measured and indicated resources involve greater uncertainty as to their existence and economic feasibility than the estimation of proven and probable reserves. U.S. investors are cautioned not to assume that any part of measured or indicated resources will ever be converted into economically mineable reserves. The estimation of inferred resources involves far greater uncertainty as to their existence and economic viability than the estimation of other categories of resources. Inferred Mineral Resources could be upgraded to Indicated Mineral Resources with continued exploration. Therefore, U.S. investors are also cautioned not to assume that all or any part of inferred resources exist, or that they can be legally or economically mined.

Canadian regulations permit the disclosure of resources in terms of “contained ounces” provided that the tonnes and grade for each resource are also disclosed; however, under Guide 7, the SEC only permits issuers to report “mineralized material” in tonnage and average grade without reference to contained ounces. Under Guide 7, the tonnage and average grade described herein would be characterized as mineralized material. We provide such disclosure about our properties to allow a means of comparing our projects to those of other companies in the mining industry, many of which are Canadian and report pursuant to NI 43-101, and to comply with applicable disclosure requirements.

TECHNICAL INFORMATION

The technical content of this news release has been reviewed and approved by Peter Mah, P.Eng., COO of McEwen Mining and a Qualified Person as defined by Canadian Securities Administrators National Instrument 43-101 "Standards of Disclosure for Mineral Projects."

The technical information in this news release related to resource and reserve estimates has been reviewed and approved by Luke Willis, P.Geo., McEwen Mining’s Director of Resource Modelling and Qualified Person as defined by Canadian Securities Administrators National Instrument 43-101 "Standards of Disclosure for Mineral Projects."

CAUTION CONCERNING FORWARD-LOOKING STATEMENTS

This news release contains certain forward-looking statements and information, including "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995. The forward-looking statements and information expressed, as at the date of this news release, McEwen Mining Inc.'s (the "Company") estimates, forecasts, projections, expectations or beliefs as to future events and results. Forward-looking statements and information are necessarily based upon a number of estimates and assumptions that, while considered reasonable by management, are inherently subject to significant business, economic and competitive uncertainties, risks and contingencies, and there can be no assurance that such statements and information will prove to be accurate. Therefore, actual results and future events could differ materially from those anticipated in such statements and information. Risks and uncertainties that could cause results or future events to differ materially from current expectations expressed or implied by the forward-looking statements and information include, but are not limited to, effects of the COVID-19 pandemic, fluctuations in the market price of precious metals, mining industry risks, political, economic, social and security risks associated with foreign operations, the ability of the corporation to receive or receive in a timely manner permits or other approvals required in connection with operations, risks associated with the construction of mining operations and commencement of production and the projected costs thereof, risks related to litigation, the state of the capital markets, environmental risks and hazards, uncertainty as to calculation of mineral resources and reserves, and other risks. Readers should not place undue reliance on forward-looking statements or information included herein, which speak only as of the date hereof. The Company undertakes no obligation to reissue or update forward-looking statements or information as a result of new information or events after the date hereof except as may be required by law. See McEwen Mining's Annual Report on Form 10-K for the fiscal year ended December 31, 2019 and other filings with the Securities and Exchange Commission, under the caption "Risk Factors", for additional information on risks, uncertainties and other factors relating to the forward-looking statements and information regarding the Company. All forward-looking statements and information made in this news release are qualified by this cautionary statement.

The NYSE and TSX have not reviewed anddo not accept responsibility for the adequacy or accuracy of the contents of this news release, which has been prepared by managementof McEwen Mining Inc.

ABOUT MCEWEN MINING

McEwen Mining is a diversified gold and silver producer and explorer focused in the Americas with operating mines in Nevada, Canada, Mexico and Argentina. It also owns a large copper deposit in Argentina.

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CONTACT INFORMATION:
**<br><br> <br>Investor Relations:<br><br> <br>(866)-441-0690 Toll Free<br><br> <br>(647)-258-0395<br><br> <br><br><br> <br>Mihaela Iancu** ext. 320<br><br> <br><br><br> <br>info@mcewenmining.com	<br><br> <br>Website: www.mcewenmining.com<br><br> <br><br><br> <br>Facebook: facebook.com/mcewenmining<br><br> <br>Facebook: facebook.com/mcewenrob<br><br> <br><br><br> <br>Twitter: twitter.com/mcewenmining<br><br> <br>Twitter: twitter.com/robmcewenmux<br><br> <br><br><br> <br>Instagram: instagram.com/mcewenmining	150 King Street West<br><br> <br>Suite 2800, P.O. Box 24<br><br> <br>Toronto, ON, Canada<br><br> <br>M5H 1J9

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