Form 8-K

8-K — GOLD RESOURCE CORP

Accession: 0001104659-26-057325

Filed: 2026-05-08

Period: 2026-05-07

CIK: 0001160791

SIC: 1040 (GOLD & SILVER ORES)

Item: Results of Operations and Financial Condition

Item: Financial Statements and Exhibits

Documents

8-K — goro-20260507x8k.htm (Primary)

EX-99.1 (goro-20260507xex99d1.htm)

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8-K

8-K (Primary)

Filename: goro-20260507x8k.htm · Sequence: 1

GOLD RESOURCE CORP_May 7, 2026

0001160791false00011607912026-05-072026-05-07

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

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

Date of Report (Date of earliest event reported): May 7, 2026

GOLD RESOURCE CORPORATION

(Exact name of registrant as specified in its charter)

Colorado

001-34857

84-1473173

(State or other jurisdiction of

incorporation)

(Commission

File Number)

(I.R.S. Employer

Identification Number)

7887 East Belleview Avenue, Suite 1100

Denver, Colorado

80111

(Address of principal executive offices)

(Zip Code)

Registrant’s telephone number including area code: (303) 320-7708

(Former name or former address, if changed since last report)

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

GORO

NYSE American

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. ◻

1.01

Item 2.02 Results of Operations and Financial Condition

On May 7, 2026, Gold Resource Corporation (the “Company”) issued a news release reporting its production and unaudited financial results for the three months ending March 31, 2026. A copy of the news release is attached as Exhibit 99.1 to this report.

In accordance with General Instruction B.2 of Form 8-K, the information in this Item 2.02, including Exhibit 99.1, shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liability of that section, and shall not be incorporated by reference into any of the Company’s filings or other document filed under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such filing.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits. The following exhibits are furnished with this report:

99.1

News Release dated May 7, 2026

104

Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

GOLD RESOURCE CORPORATION

Date: May 7, 2026

By:

/s/ Allen Palmiere

Name:

Allen Palmiere

Title:

Chief Executive Officer and President

EX-99.1

Filename: goro-20260507xex99d1.htm · Sequence: 2

Exhibit 99.1

NEWS - FOR IMMEDIATE RELEASE

NYSE American: GORO

GOLD RESOURCE CORPORATION ANNOUNCES

FIRST QUARTER 2026 RESULTS

Denver, Colorado – May 7, 2026 – Gold Resource Corporation (NYSE American: GORO) (the “Company”) is pleased to announce the first quarter production results from its Don David Gold Mine. During the quarter, the Company’s production included sales of 374,232 ounces of silver, 1,548 ounces of gold, and a total gold equivalent (“AuEq”) ounces of 8,749. Total cash costs were $2,164 per AuEq ounce, and with continued investment in the mine infrastructure and drilling resulted in an all-in sustaining cost of $3,476 per AuEq ounce. The Company had a net income of $4.7 million, or $0.03 per share, for the quarter.

“We are pleased to report another strong quarter and returning the Company to positive net income, with $40.2 million in working capital and $31.0 million in cash and cash equivalents as of March 31, 2026,” said Allen Palmiere, President and CEO. “We continued to make meaningful progress in strengthening operational performance at Don David while advancing the proposed transaction with Goldgroup Mining Inc., which we expect to close in the third quarter. Our ongoing exploration programs continue to expand resources in the area surrounding the mine and the definition drilling has been improving our margins. As we work through the transaction, our team continues to focus on disciplined execution, safety, cost and grade control, and the delivery of returns for our shareholders.”

Don David Operational Highlights for the Quarter

● In the first quarter of 2026, DDGM, located in Mexico, produced and sold a total of 8,749 AuEq ounces, comprised of 1,548 gold ounces and 374,232 silver ounces, at an average realized sales price per ounce of $5,098 and $98.09, respectively. The 74,444 total tonnes milled was 31% higher than in the same period in 2025. Metal production for gold and silver increased by 126% and 54%, respectively. Copper, lead, and zinc production also increased by 39%, 36%, and 64%, respectively.

● During the first quarter of 2026, underground grade-control, infill, and selective expansion drilling continued to focus on near-term production targets at Arista and at the Alta Gracia project. At Arista, drilling supported production planning and refinement of the geologic model for veins within the Arista system, including the Viridiana, Gisela, Candelaria, Marena North and Splay 31 veins, as well as the Sandy and Sadie veins of the Three Sisters system. Limited surface expansion drilling also commenced during the quarter, testing the Isabel SE target. At the Alta Gracia Project, surface and underground infill and expansion drilling advanced evaluation of the Mirador and Independencia vein systems.

Merger Update

On January 26, 2026, the Company announced that it entered into a definitive arrangement agreement and plan of merger (the “Arrangement Agreement”) with Goldgroup Mining Inc. (“Goldgroup”), whereby Goldgroup agreed to acquire all of the issued and outstanding shares of the Company’s common stock (the “Transaction”). Pursuant to the Arrangement Agreement, the Company’s stockholders will receive 1.4476 common shares of Goldgroup for each share of the Company’s common stock (as adjusted by a share consolidation to be completed by Goldgroup prior to closing). The Transaction is expected to close in the third quarter of 2026, subject to customary closing conditions (including approval by the stockholders of each of the Company and

Goldgroup). The parties received unconditional approval from the Mexican National Antitrust Commission in respect of the Transaction on April 27, 2026.

Sales Statistics

For the three months ended March 31,

2026

2025

Metal produced and sold

Gold (ozs.)

1,548

859

Silver (ozs.)

374,232

230,320

Copper (tonnes)

Lead (tonnes)

353

277

Zinc (tonnes)

962

617

Average metal prices realized (1)

Gold ($ per oz.)

5,098

2,956

Silver ($ per oz.)

98.09

32.54

Copper ($ per tonne)

13,649

9,656

Lead ($ per tonne)

1,938

1,950

Zinc ($ per tonne)

3,248

2,710

Gold equivalent ounces sold

Gold Ounces

1,548

859

Gold Equivalent Ounces from Silver

7,201

2,535

Total AuEq oz

8,749

3,394

(1) Average metal prices realized vary from the market metal prices due to final settlement adjustments from our provisional invoices. Our average metal prices realized will therefore differ from the average market metal prices in most cases.

Trending Highlights

2025

2026

Operating Data

Total tonnes milled

56,906

63,479

65,131

85,888

74,444

Average Grade

Gold (g/t)

0.70

0.56

1.11

0.96

1.10

Silver (g/t)

169

115

250

298

203

Copper (%)

0.18

0.13

0.16

0.15

Lead (%)

0.72

0.88

0.63

0.58

0.72

Zinc (%)

1.68

2.72

1.57

1.22

1.91

Metal production (before payable metal deductions) (2)

Gold (ozs.)

903

758

1,646

1,993

2,039

Silver (ozs.)

257,285

196,435

453,057

687,523

396,448

Copper (tonnes)

Lead (tonnes)

272

373

241

306

370

Zinc (tonnes)

699

1,380

784

750

1,143

(2) The difference between what we report as "Metal Production" and "Metal Sold" is attributable to the difference between the quantities of metals contained in the concentrates we produce versus the portion of those metals actually paid for according to the terms of our sales contracts. Differences can also arise from inventory changes related to shipping schedules, or variances in ore grades and recoveries which impact the amount of metals contained in concentrates produced and sold.

First Quarter 2026 Conference Call

The Company will host a conference call on Tuesday, May 12, 2026, at 10:00 a.m. Eastern Time.

The conference call will be recorded and posted to the Company’s website later in the day following the conclusion of the call. Following prepared remarks, Allen Palmiere, President and Chief Executive Officer, Armando Alexandri, Chief Operating Officer, and Chet Holyoak, Chief Financial Officer, will host a live question and answer (Q&A) session. There are two ways to join the conference call.

To join the conference via webcast, please click on the following link:

https://onlinexperiences.com/Launch/QReg/ShowUUID=9408713A-18B6-4113-B697-6504F8C08A29

To join the call via telephone, please use the following dial-in details:

Participant Toll Free:

+1 (800) 717-1738

International:

+1 (289) 514-5100

Conference ID:

05743

Please connect to the conference call at least 10 minutes prior to the start time using one of the connection options listed above.

About GRC:

Gold Resource Corporation is a gold and silver producer, developer, and explorer with its operations centered on the Don David Gold Mine in Oaxaca, Mexico. Under the direction of an experienced board and senior leadership team, the Company’s focus is to unlock the significant upside potential of its existing infrastructure and large land position surrounding the mine in Oaxaca, Mexico and to develop the Back Forty Project in Michigan, USA. For more information, please visit the Company’s website, located at www.goldresourcecorp.com.

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. Forward-looking words such as “plan,” “target,” “anticipate,” “believe,” “estimate,” “intend” and “expect” and similar expressions are intended to identify such forward-looking statements. Such forward-looking statements include, without limitation, the anticipated closing timeline for the Transaction. All forward-looking statements in this press release are based upon information available to the Company as of the date of this press release, and the Company assumes no obligation to update any such forward-looking statements. Forward-looking statements involve a number of risks and uncertainties, and there can be no assurance that such statements will prove to be accurate. The Company’s actual results could differ materially from those discussed in this press release. Forward-looking statements are subject to risks and uncertainties. Additional risks related to the Company may be found in the periodic and current reports filed with the Securities and Exchange Commission (the “SEC”) by the Company, including the Company’s Annual Report on Form 10-K for the year ended December 31, 2025, as amended (the “2025 Annual Report”), which are available on the SEC’s website at https://www.sec.gov.

IMPORTANT INFORMATION FOR INVESTORS AND STOCKHOLDERS

This communication does not constitute an offer to sell or the solicitation of an offer to buy any securities or a solicitation of any vote or approval, nor shall there be any sale of securities in any jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such jurisdiction. Any securities issued in the Transaction are anticipated to be issued in reliance upon available exemptions from registration requirements pursuant to Section 3(a)(10) of the Securities Act and applicable exemptions under state securities laws. Promptly after filing its definitive proxy statement with the SEC, the Company will send the definitive proxy statement to each stockholder of the Company entitled to vote at the meeting of stockholders relating to the Transaction and the transactions contemplated in connection therewith. This communication is not a substitute for the proxy statement or for any other document that the

Company may file with the SEC and send to the Company’s stockholders in connection with the potential transaction. INVESTORS AND SECURITY HOLDERS OF THE COMPANY ARE URGED TO READ THE PROXY STATEMENT AND OTHER DOCUMENTS FILED WITH THE SEC CAREFULLY AND IN THEIR ENTIRETY WHEN THEY BECOME AVAILABLE BECAUSE THEY WILL CONTAIN IMPORTANT INFORMATION. Investors and security holders will be able to obtain free copies of the proxy statement (when available) and other documents filed with the SEC by the Company through the website maintained by the SEC at http://www.sec.gov.

The Company and certain of its respective directors, executive officers and other members of management and employees may be considered participants in the solicitation of proxies with respect to the potential Transaction under the rules of the SEC. Information about the directors and executive officers of the Company is set forth in the 2025 Annual Report. These documents can be obtained free of charge from the sources indicated above. Additional information regarding the interests of such participants in the solicitation of proxies in respect of the potential transaction will be included in the registration statement and proxy statement and other relevant materials to be filed with the SEC when they become available.

Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) accept responsibility for the adequacy or accuracy of this release.

Contacts:

Chet Holyoak

Chief Financial Officer

Chet.Holyoak@grc-usa.com

www.GoldResourceCorp.com

303-320-7708

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