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Golden Minerals Announces Restart of Silver and Gold Mining Operations at Velardeña and Provides Update on Capital Resources

Mine Development & Operations

Golden Minerals Announces Restart of Silver and Gold Mining Operations at

Velardeña and Provides Update on Capital Resources

GOLDEN, Colo.--(BUSINESS WIRE)--June 5, 2023--Golden Minerals Company (“Golden

Minerals”, “Golden” or the “Company”) (NYSE American: AUMN and TSX: AUMN)

announced today that it plans to restart silver-gold mining operations at its Velardeña Properties

located in Durango State, Mexico, subject to the receipt of sufficient capital.

Warren M. Rehn, Golden’s President and Chief Executive Officer, stated, “I am very pleased to

announce that Golden Minerals’ board of directors has approved plans to restart mining

operations at Velardeña. The decision to begin operations again at Velardeña was primarily

based on vastly improved sales terms now available to us for the gold-rich pyrite concentrate that

is produced from flotation processing of Velardeña mineralized material, which permit us to

restart operations without the significant expense of the previously planned bio-oxidation

facility. Since the start of 2023, we successfully processed 3,000 tons of material mined in our

test mining activities in 2022 and we sold approximately 600 tons of these concentrates under the

improved terms with net receipts of approximately $1.5 million or about $500 per ton of mined

material. These recent sales augur well for the potential success of our restart plans. We

anticipate that we can start mining operations with minimal initial capital of approximately $0.5

million. Our internally developed mine plan projects the production of approximately 0.4 million

silver equivalent ounces1 during 2023, with the potential to ramp up to approximately 1.6 million

silver equivalent ounces per year thereafter. We have contracted for completion of an

independent technical report, which we expect will support our internal projections. We intend to

begin preparations to start mining immediately.”

Our internal mine plan calls for underground resue mining, starting with four active stopes

initially with processing at Velardeña’s Plant I flotation facility at an initial throughput rate of

approximately 80 tonnes per day (“tpd”). As underground development progresses, the number

of stopes is anticipated to steadily increase over a period of months until 15 to 18 stopes are

ultimately in continuous production. The mill is expected to reach a steady-state processing rate

of approximately 325 tpd by the end of the year. All required permits are already in place, and

because Plant I has recently been in use and processing previously mined Velardeña sulfide

material, after startup as development costs continue to exceed net revenue, the maximum cash

outflows of about $2.3 million, inclusive of the initial $0.5 million, are predicted to be paid back

within the first nine months of operations.

The Company, through engagement with an independent engineering firm, intends in the third

quarter of 2023 to update the March 2022 Technical Report Summary for Velardeña that was

previously completed (including plans for the previously contemplated but no longer required

bio-oxidation facility) in accordance with SEC SK-1300 guidelines. That report is available here,

for reference: Velardeña Technical Report Summary, Mar. 2022. It summarizes the underlying

model from which the Company’s current internally-developed forecasts have been developed.

1 Silver equivalent production estimate calculated based on $1,900 per ounce gold and $22.50

per ounce silver with 64% payable gold recovery and 81% payable silver recovery and does not

include lead and zinc, which will also be produced.

Current Company-developed forecasts for mining a portion of the published resource over an

approximate seven-year life of mine (“LOM”) estimate processing 700,000 - 800,000 tonnes of

material at Plant I, with LOM payable gold production of 60,000 - 70,000 ounces and LOM

payable silver production of 5.5 million - 6.5 million ounces. Operating costs are estimated at

$225 - $275 per tonne.

Capital Resources and Financial Outlook

The Company does not currently have sufficient resources to initiate the restart of mining

operations at Velardeña or to otherwise meet its expected cash needs during the twelve months

ending May 31, 2024. At May 31, 2023, our total cash resources were approximately $2.4

million and we have accrued accounts payable of approximately $1.7 million. The mining

operations at Rodeo have ceased, and although we continue to process ore from the Rodeo

stockpile, we do not expect to generate a significant amount of positive operating margin from

Rodeo going forward. The Company needs to raise additional cash in the very near term,

whether through the sale of non-core assets or equity financing, including the use of its ATM

program. In the absence of sufficient asset sales, equity financing or other external funding the

Company’s cash balance is expected to be depleted early in the third quarter of 2023. If

financing or asset sales are not available to us, we could be forced to liquidate our business. The

Company’s board of directors is considering various financing alternatives, sales of assets and

other available strategic alternatives to avoid that result.

If we are successful in raising sufficient capital to restart mining operations at Velardeña during

July 2023, and if we are successful in executing the mine plan described above, the forecasted

net operating margin from the Velardeña Properties during the twelve-month period ended May

31, 2024 is expected to be between $1.7 million and $2.0 million. This twelve-month period

includes one-time costs related to restarting operations. As the mine reaches planned capacity to

feed the processing plant approximately 325 tonnes per day, the second half of 2024 is forecast

to be more favorable, generating a positive operating margin higher than what is expected during

the first eleven months of operations. Net operating margin is defined as revenue from the sale of

metals less the cost of metals sold. Our internal estimate for the net operating margin at

Velardeña assumes gold prices average $1,900 per ounce and silver prices average $22.50 per

ounce. The actual amount received in net operating margin from both Rodeo and Velardeña

during the period may vary significantly from the amounts specified above due to, among other

things: (i) unanticipated variations in grade, (ii) challenges associated with our proposed mining

plans, including difficulties in controlling grade dilution, (iii) decreases in commodity prices

below those used in calculating the estimates shown above, (iv) variations in expected

recoveries, (v) increases in operating costs above those used in calculating the estimates shown

above, or (vi) interruptions in mining.

There is no assurance that the Company will be successful in achieving the positive operating

margins at Velardeña described above. Specifically, the anticipated net operating margin from

the Velardeña Properties is not based on the results of a full feasibility study. While the

Company believes its internal estimates are realistic, the lack of a full feasibility study may

increase the uncertainty associated with the estimates.

In addition to the estimates described above, the Company expects to collect approximately $1.5

million in VAT accounts receivable from the Mexican government; however, the timing for

receipt of these payments is uncertain.

Update on Unifin dispute

As previously disclosed, the Company is party to a lawsuit in Mexico brought by Unifin

Financiera, S.A.B. de C.V. (“Unifin”). Unifin is alleging that a representative of the Company’s

subsidiary, Minera William, S.A. de C.V. (“Minera William”) signed certain documents in July

2011 purporting to bind Minera William as a guarantor of payment obligations owed by a third

party to Unifin in connection with that third party’s acquisition of certain drilling equipment. At

the time the documentation was allegedly signed, Minera William was a subsidiary of ECU

Silver Mining prior to the Company’s acquisition of ECU in September 2011. A preliminary

hearing on the lawsuit was held on June 2, 2023 and the trial hearing has been scheduled for June

30, 2023. Unifin is seeking recovery for as much as US$12.5 million. Because the Velardeña

mine and processing plants are held by Minera William, any adverse outcome of the action may

have a material impact on our ability to restart production at Velardeña.

About Golden Minerals

Golden Minerals is a gold and silver producer based in Golden, Colorado. The Company is

primarily focused on producing gold and silver from its Rodeo Mine, advancing its Velardeña

and Yoquivo properties in Mexico and, through partner-funded exploration, its El Quevar silver

property in Argentina, as well as acquiring and advancing selected mining properties in Mexico,

Nevada and Argentina.

Forward-Looking Statements

This press release contains forward-looking statements within the meaning of Section 27A of the

Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as

amended, and applicable Canadian securities legislation, including statements regarding the

Company’s plan to restart mining operations at the Velardeña properties, including the potential

timing of restart, production expectations, required capital to restart and ramp-up operations,

potential plant processing rate, projected payable gold and silver production, operating costs and

net operating margin; the Company’s expected near-term cash needs; collection of

approximately $1.5 million in VAT accounts receivable from the Mexican government and the

need to raise additional cash in the near-term to avoid depletion of the Company’s cash balance

early in the third quarter of 2023. These statements are subject to risks and uncertainties,

including increases in costs and declines in general economic conditions; changes in current

payable terms for gold-bearing pyrite concentrates; changes in political conditions, in tax,

royalty, environmental and other laws in the Mexico and other market conditions; unanticipated

variations in grade; challenges associated with our proposed mining plans, including difficulties

in controlling grade dilution; decreases in commodity prices below those used in calculating the

estimates shown above; variations in expected recoveries; increases in operating costs above

those used in calculating the estimates shown above; interruptions in mining; or an adverse result

in the pending Unifin lawsuit. Golden Minerals assumes no obligation to update this information.

Additional risks relating to Golden Minerals may be found in the periodic and current reports

filed with the SEC by Golden Minerals, including the Company’s Annual Report on Form 10-K

for the year ended December 31, 2022.

Follow us at www.linkedin.com/company/golden-minerals-company/ and

https://twitter.com/Golden_Minerals.

For additional information please visit http://www.goldenminerals.com/.

Contacts

Golden Minerals Company

Karen Winkler, Director of Investor Relations

(303) 839-5060